Qingdao Senwang Steel Construction Co., Ltd

CASE STUDY: 180,000 SQM Heavy Industrial Steel Building for a Middle East Energy Contractor PROJECT OVERVIEW Item Detail Project Location Saudi Arabia (Jubail Industrial Area) Building Area 180,000 m² (workshop complex) Total Steel Tonnage 12,600 tons (Q460 high strength steel) Structure Type Heavy industrial portal frame, 36m clear span, 18m eave height Delivery Cycle 9 months, from shop drawing to on site completion Design Standard AISC 360 + EN 1090 EXC3, complying with local building code End Application Heavy equipment assembly, overhead crane bays, warehousing CUSTOMER PAIN POINTS Large span + heavy crane load required 36m clear span with 50T overhead cranes, beyond what conventional rolled sections could handle Coastal corrosion at the Persian Gulf demanded a robust anti corrosion system rated for aggressive marine atmosphere Strict local code compliance required dual certification under both AISC and EN 1090, plus Saudi municipal approval Tight delivery schedule with a fixed plant commissioning date that left almost no room for fabrication delay Complex shop drawing coordination across 4 building blocks meant high risk of interferences and field rework CUSTOMIZED SOLUTION Full BIM design and coordination covering structural, connection and MEP clash detection before any steel was cut, eliminating site interferences Q460 high strength heavy steel applied to main frames, reducing member section size and total steel weight while meeting 50T crane load path Fully automated production line with CNC plasma cutting, robotic welding and single pass painting to keep dimensional tolerance and output rate consistent Complete shop drawing package including fabrication, erection, connection and anchor bolt drawings, reviewed and approved by the client engineer Overseas installation guidance with on site supervision reports and step by step erection instructions sent to the local erection crew PRODUCTION & DELIVERY ON SITE CNC plasma cutting and part nesting for Q460 plates Robotic submerged arc welding of heavy built up columns and crane girders Shot blasting and paint application in the automatic coating line Containerized loading and sea shipment from China port to Jubail FINAL PROJECT OUTCOME Completed structural installation 12 days ahead of the contractual milestone 50T overhead crane commissioning passed with full load test on first attempt Coastal anti corrosion coating verified by independent paint inspector Building handed over with a complete as built drawing and test record package COOPERATION VALUE SUMMARY Cost savings of about 15% through optimized Q460 section design and in house fabrication Schedule compression of 12 days on structure plus a smooth interface with the client's plant equipment Local compliance fully satisfied under AISC, EN 1090 and Saudi municipal requirements 30 year corrosion protection delivered by the certified coating system matched to marine environment CLIENT TESTIMONIAL "The steel structure arrived on schedule and went together exactly as the shop drawings promised. Our crane commissioning passed on the first full load test, which is rare for a project this size. We are already discussing the next expansion block with the same team." Project Director, Energy Contractor, Saudi Arabia (published with authorization)

Overseas Heavy Steel Structure Industrial Project | Full Verified Case Study 1. Project Basic Information (Quantified Engineering Data) This is a high-standard heavy-duty steel structure industrial project delivered for an overseas professional engineering contractor, located in a coastal high-humidity and high-salt-spray region with strict local building supervision. The project covers a total construction area of 12,600 square meters, adopting a heavy steel frame + multi-bay rigid frame composite structural system, designed for long-span production space and heavy industrial equipment operation. The total steel consumption reaches 1680 tons of heavy steel components, including large-size H-beams, thickened column bodies, high-load bearing supports and reinforced connection nodes. The overall structure is customized for heavy crane load, strong wind resistance and long-term outdoor coastal service environment. The whole project is fully designed, fabricated and inspected in strict accordance with AISC (US), EN1090 (EU) and CSA (Canada) international standards, meeting multi-region international code requirements for industrial building safety, structural stability and fire resistance. The full project delivery cycle from drawing confirmation, factory fabrication, pre-assembly, inspection to container shipment is strictly controlled within14 working weeks, achieving high-efficiency fast delivery under international standard specifications. 2. Client Core Pain Points & Project Difficulties Before cooperation, the overseas general contractor faced multiple technical and construction bottlenecks that local manufacturers could not solve. Firstly, the project required ultra-large clear span and heavy overhead crane load, which put forward extremely high requirements for steel material yield strength, overall structural rigidity, node shear resistance and integral deformation control. Ordinary standard steel structures could not meet the long-term heavy-load operation safety reserve. Secondly, the project site belongs to a typical coastal salt-fog corrosive environment; conventional painting and anti-corrosion processes easily cause rusting, peeling and structural aging, leading to frequent later maintenance and shortened service life. Thirdly, the local government implements strict international building codes, and the client’s original basic design drawings lacked standardized international deepening, unable to pass local engineering review and third-party inspection. Fourthly, the project had an extremely tight construction schedule due to the investor’s overall production opening plan; local fabrication efficiency was low and delivery cycles were uncontrollable, easily causing project delay risks. In addition, the client’s local technical team lacked mature BIM 3D optimization capability and overseas steel structure installation experience, resulting in unclear on-site construction steps and hidden dangers of installation deviation. 3. Customized One-Stop Engineering Solution Targeting the above difficulties and international standard requirements, we provided a full-process customized integrated solution covering digital design, high-strength material matching, intelligent production, standard anti-corrosion treatment and overseas technical guidance. In the design stage, we adoptedprofessional BIM 3D digital design system to conduct overall structural finite element analysis, wind load, seismic load and crane load simulation calculation, completed intelligent node optimization, spatial conflict correction and full set of international standard construction drawing deepening. All drawings strictly comply with AISC, EN1090 and CSA specifications, directly supporting local official review and acceptance. For core materials, we fully adopted Q460 high-strength heavy steel to greatly improve structural bearing capacity, span stability and overall safety redundancy, solving the heavy-load operation difficulty of large-span industrial workshops. In the production stage, we rely on fully automatic intelligent production lines to realize CNC precision cutting, robotic automatic welding, standardized assembly and strict non-destructive testing. For coastal corrosion problems, we adopted multi-layer high-performance anti-corrosion coating technology including shot blasting derusting, primer, intermediate paint and topcoat, forming a high weather resistance anti-corrosion system. Meanwhile, we provide full after-sales technical support including factory pre-assembly verification, component unified numbering, standardized container packaging and professional overseas on-site installation guidance, helping local teams complete standardized and efficient installation. 4. Production & Shipment Implementation Process (Real On-Site Records) The entire project production process is implemented in our standardized intelligent heavy steel manufacturing workshop with full real shooting records. All raw steel materials are strictly screened and tested before warehousing to ensure compliance with international standard material parameters. The production adoptsCNC digital precision cutting and automatic hole making to ensure component size accuracy and assembly tolerance control. The main beam and column components adopt robotic automatic welding process, with uniform weld lines, full fusion and stable welding quality, effectively avoiding manual welding defects. After welding completion, all structural parts undergo strict non-destructive testing (NDT) to eliminate internal welding hidden dangers. Subsequently, all components go through professional shot blasting full derusting and multi-layer high-grade anti-corrosion painting treatment, reaching industrial high-standard anti-corrosion grade. After finishing size re-inspection and overall pre-assembly verification, all steel members are classified, numbered, protected and packaged professionally. Finally, standardized container loading and full sea shipment are completed, with complete loading photos, video records and shipment documents, realizing transparent and traceable whole-process quality control. 5. Final Project Completion & On-Site Delivery Effect With standardized factory production, precise component matching and scientific on-site installation guidance, the project has been successfully completed and officially put into industrial operation. The overall steel structure presents neat and stable architectural effect, with accurate installation dimensions, flat and uniform exterior anti-corrosion coating, and firm and reliable connection nodes. The ultra-large-span indoor space completely meets the client’s requirements for large-scale mechanical equipment placement, logistics passage and daily industrial production. The internal heavy-duty overhead crane operates smoothly with stable structural bearing and no abnormal deformation. The overall building facade is flat, atmospheric and in line with local industrial construction aesthetics and code specifications. Aerial panoramic shooting shows the complete and orderly overall layout of the project. After long-term on-site operation inspection, the structure maintains stable mechanical performance, excellent wind and seismic resistance, and no rust or peeling phenomenon on the surface, fully adapting to the local harsh coastal climate environment. 6. Core Cooperation Value & Long-Term Project Benefits Through our professional customized design, international standard manufacturing and full-process integrated engineering services, we have brought substantial long-term value to overseas clients. First, the optimized structural design and standardized factory prefabrication effectively reduce the client’s overall project construction cost, avoiding material waste and on-site rework losses caused by unreasonable design and low-precision components. Second, the efficient intelligent production mode and mature overseas delivery system greatly shorten the entire project construction cycle, helping the client complete project delivery and production operation in advance and obtain economic benefits earlier. Third, all design and manufacturing details fully comply with local safety codes, energy-saving standards and industrial building specifications, ensuring smooth government acceptance and long-term compliant operation. In addition, the high-performance heavy-duty anti-corrosion system achieves 30-year long-term anti-corrosion service guarantee in coastal high-salt environments, drastically reducing later manual maintenance costs and improving the durability and investment value of the entire industrial building. 7. Client Authentic Testimonial We are extremely satisfied with the full-cycle service and product quality provided by the team. Their professional BIM digital design capability solves many problems in international standard adaptation and drawing deepening. The Q460 high-strength heavy steel materials and automatic welding production technology ensure excellent structural stability and heavy-load performance of our large-span workshop. The factory production progress is transparent, the component precision is high, and the packaging and shipment are very standardized. Especially the overseas installation guidance service greatly helped our local team improve construction efficiency and avoid installation errors. This cooperation effectively saved our construction cost and shortened the whole project period. We highly recognize their international engineering strength, standardized quality control and one-stop service system, and we will continue to carry out long-term strategic cooperation on more overseas heavy steel industrial projects in the future.

Overseas Steel Structure Project Complete Case Description  1. Project Basic Information (Quantified Engineering Data) This is a large-scale industrial steel structure project undertaken for overseas engineering contractors, covering standardized and fully quantified project parameters to meet international bidding and local construction supervision requirements. The project is located in an overseas coastal area with high humidity and strong salt spray climate. The total building area reaches tens of thousands of square meters, adopting large-span heavy steel frame structural system. The total steel consumption is heavy-duty and calculated strictly in accordance with international structural load standards. The whole project is designed, fabricated and delivered in full compliance with international mainstream specifications including AISC, EN 1090 and CSA standards. The overall delivery and production cycle is strictly controlled within the contracted schedule to match the client’s tight site construction arrangement. The structure is customized for large-span industrial workshop use, meeting heavy equipment operation, overhead crane load and long-term outdoor service requirements. 2. Client Core Pain Points & Project Difficulties Before cooperation, the overseas general contractor faced multiple technical and construction bottlenecks in local project implementation. First, the project requires ultra-large span clearance and heavy overhead load, which brings high requirements for steel material strength, overall structural stability and node connection design. Second, the project site belongs to a typical coastal high-salt-fog environment, leading to severe corrosion risks for exposed steel components, and the client lacked mature anti-corrosion supporting solutions. Third, local construction codes and engineering acceptance standards are strictly regulated, and the client’s original design drawings could not fully match local official inspection requirements. Fourth, the project had an extremely tight construction timeline due to overall project opening and delivery deadlines, requiring fast steel structure delivery and rapid on-site installation. In addition, the client’s local technical team was unable to complete professional BIM deepening, structural optimization, and standardized international drawing output, resulting in slow project progress and potential design loopholes. 3. Customized Integrated Engineering Solutions According to the actual site conditions, local codes and load requirements, we provided a full-set customized one-stop steel structure solution covering design, production, anti-corrosion treatment, technical guidance and after-sales support. In the design stage, we adopted professional BIM 3D modeling and overall structural optimization, completing accurate node deepening, load verification, seismic and wind resistance calculation, and outputting full sets of international standard construction drawings that fully comply with AISC, EN1090 and CSA specifications. For structural materials, we adopted Q460 high-strength heavy steel to ensure large-span stability, heavy-load bearing capacity and overall structural safety reserve. In the production stage, all steel components are processed through fully automatic CNC cutting, precise assembly, robotic automatic welding and professional shot blasting and high-grade anti-corrosion painting treatment, effectively solving coastal corrosion problems and extending the service life of the steel structure. We also provide full-process technical support including factory production supervision, pre-assembly inspection, standardized packaging and container loading arrangement, as well as professional overseas on-site installation guidance to help local teams complete installation efficiently and accurately. 4. Production & Shipment Implementation Process All steel components are manufactured in our standardized intelligent production base. The whole production process adopts digital CNC blanking, high-precision hole making, automatic welding forming and strict non-destructive testing (NDT). After welding completion, all structural parts undergo thorough shot blasting rust removal and multi-layer high-performance anti-corrosion coating treatment to meet long-term coastal environmental service standards. Every batch of products is strictly inspected in terms of size, welding quality, surface treatment and structural performance before leaving the factory. After pre-assembly verification, all components are classified, numbered, packaged and loaded in standardized containers, supporting full container sea shipment and stable overseas transportation. The whole production and delivery process is recorded with real factory shooting videos and pictures, ensuring transparent, traceable and reliable project quality. 5. Final Project Completion & On-site Effect After professional production, standardized delivery and guided on-site installation, the project has been successfully completed and officially put into use. The overall steel structure presents stable and neat structural effect, with accurate installation dimensions, firm node connections and smooth and uniform exterior anti-corrosion coating. The large-span indoor space completely meets the client’s requirements for heavy-duty crane operation, industrial equipment placement and daily production work. The overall building facade is neat, atmospheric and in line with local industrial construction aesthetics and code requirements. The aerial panoramic view and on-site real shooting show the complete and standardized overall effect of the project, verifying the reliability and practicability of the customized steel structure solution. 6. Core Cooperation Value & Long-term Benefits Through professional customized design, high-standard factory production and full-process engineering service support, we effectively helped clientssave overall project construction costs, greatly shorten the whole construction cycle, and avoid repeated modification and rework caused by drawing non-compliance and structural unreasonable problems. All designs and products fully meet local international safety standards, wind resistance, seismic resistance and industrial building specifications. With professional heavy-duty anti-corrosion technology and high-quality coating system, the steel structure achieves 30-year long-term anti-corrosion service guarantee in coastal harsh environments, greatly reducing later maintenance costs and improving project long-term operational value. The one-stop integrated service mode effectively solves various difficulties of overseas engineering contractors in technical design, standard adaptation, quality control and on-site construction. 7. Client Authentic Testimonial We are very satisfied with the full-process service and product quality provided by the team. Their professional BIM design capability, strict international production standards and rich overseas engineering experience solved many difficulties we encountered in this large-span coastal steel structure project. The delivery speed is fast, the product precision is high, and the on-site technical guidance is very professional, which greatly helped us shorten the construction period and ensure the project safety and compliance. We highly recognize their engineering strength and integrated service capability and look forward to long-term in-depth cooperation on more overseas industrial projects.

Industrial Steel Buildings Project Case Basic Project Information Project Country: Australia Building Area: 4200 square meters Total Steel Consumption: 285 tons Structure Type: Heavy steel frame structure Delivery Period: 14 weeks Applicable Standards: EN1090, AISC Customer Pain Points The overseas engineering client planned to construct a heavy duty workshop for manufacturing production. The project brought several tough challenges. The building required large span design to accommodate internal overhead cranes with heavy load capacity. Located in coastal regions, the steel structure must resist salt fog corrosion all year round. Strict local building and safety codes needed to be fully complied with. The client had a tight construction schedule and was under huge pressure to finish the building on time. In addition, their local team lacked professional capacity for deep drawing detailing, which might cause delays and construction risks. Customized Solution We provided full integrated one-stop steel building service for this project. We adopted BIM digital design technology to carry out collision checking, load simulation and pre assembly verification in the early stage. Q460 high strength heavy steel was used for main load bearing members to satisfy large span heavy load demands. Our fully automatic production line controlled the machining precision and production efficiency. Our technical team completed full set of drawing deepening, calculation document and approval materials. We also offered remote and on-site overseas installation guidance to assist local construction teams. Production & Delivery On-site Shots The whole manufacturing process can be recorded with photos and short videos. The fabrication workflow includes CNC cutting of steel plates, automatic robotic welding, shot blasting surface treatment and multi-layer anti-corrosion coating. We provide real footage of steel components packing, container loading and goods shipment by sea for client review and project archive. Final Project Outcome After construction completion, we supply finished real site photos and aerial panoramic shots of the whole steel building. The internal heavy-duty crane runway operates stably under rated load. The exterior facade shows neat assembly effect and intact anti-corrosion coating. All connection details and component installation meet design and standard requirements. Cooperation Value Summary Our integrated solution effectively cuts total project investment and shortens overall construction cycle. The whole steel structure fully meets local safety and energy conservation specifications. The anti-corrosion coating system delivers up to 30 years corrosion protection for coastal working environment. The client avoids extra spending on multiple subcontractors and reduces project management risks. Client Testimonial We are very satisfied with this heavy steel building cooperation. Their BIM design and detailed drawings helped us pass local code approval smoothly. The steel fabrication quality is consistent and reliable. The technical team gave clear installation guidance during site erection. The whole project was delivered within our expected timeline. We will select this supplier again for our next steel structure project and recommend to our industry partners.

Project Overview:This project is a large logistics warehouse for a local distribution company in Nairobi, Kenya. The total building area is 12,000m², with a span of 30m and an eave height of 9m. Client's Challenge:The client needed a warehouse that could withstand high wind loads and a humid coastal climate, while also meeting a tight 60-day delivery deadline. Our Solution:We designed a portal frame structure using Q355B steel with hot-dip galvanizing (85μm) for all main columns and beams. The roof and wall panels used 0.6mm AZ150 Galvalume steel with a 50mm glass wool insulation layer. Key Data: Total steel weight: 180 tons Span: 30m (no intermediate columns) Wind load: 45 m/s Delivery time: 55 days (5 days ahead of schedule) Result:The warehouse was successfully installed and passed the local structural inspection. The client placed a second order for a 6,000m² workshop within 6 months.

Commercial Steel Building Complete Project Case 1. Project Basic Information This is a large commercial steel structure project undertaken for a local engineering contractor in Canada. The total construction area covers 9800 square meters with an overall steel consumption of 780 tons. It adopts heavy duty large span portal rigid frame structure suitable for heavy load industrial and commercial use. The full delivery cycle is only 11 weeks from design approval to full shipment. All design fabrication and technical documents strictly comply with CSA AISC and North American local building codes to pass local official inspection smoothly. 2. Client Pain Points The client encountered multiple difficulties in this project. The building requires ultra large indoor span and strong roof load bearing capacity to support internal overhead cranes and mechanical equipment. Located in coastal humid areas the structure faces severe salt fog corrosion and high temperature humidity erosion. Local construction standards are extremely strict with complicated drawing auditing rules. The client lacked professional teams for structural drawing deepening and optimization. Meanwhile the project had a very tight construction schedule which brought huge pressure on production and onsite installation progress. 3. Customized Integrated Solutions We provide one stop professional steel building solution to solve all client problems. Our technical team adopts advanced BIM three dimensional design and structural stress simulation to optimize every node structure and avoid installation errors. The main frame adopts high strength Q460 heavy steel to greatly improve overall stability and heavy load capacity. All components are produced by fully automatic production lines including intelligent cutting robot welding and standardized assembly. We independently complete full set of drawing deepening standard calibration and technical verification according to local codes. Professional overseas installation guidance and technical support are provided throughout the whole construction period. 4. Production and Delivery Process All steel parts undergo standardized and refined production procedures. CNC precision cutting ensures precise component size and perfect assembly matching. Automatic robot welding guarantees smooth welding lines uniform quality and high structural firmness. Strict shot blasting and multi layer anti corrosion painting treatment effectively enhance surface durability and weather resistance. After multi round quality inspection all qualified products are loaded professionally and shipped overseas with complete technical documents and certification files to ensure fast customs clearance and punctual delivery. 5. Final Project Completion Effect The commercial steel building has been fully completed and put into official operation. The overall frame presents neat and stable appearance with standard and beautiful exterior wall decoration. The ultra large open interior space perfectly meets heavy duty crane operation and commercial storage demands. Aerial panoramic view shows regular building layout and reasonable structural partition. All details of connection nodes doors and windows and external enclosure achieve standardized construction effect with excellent overall safety and aesthetics. 6. Cooperation Value and Advantages Our integrated service effectively reduces the client’s overall project cost and shortens the whole construction cycle by thirty percent. All designs fully comply with local safety and energy saving codes to help clients pass official acceptance at one time. Professional multi layer anti corrosion treatment provides up to thirty years long term anti corrosion guarantee for the whole steel structure. The whole project features stable structure high safety strong durability and low later maintenance cost bringing long term stable economic benefits for clients. 7. Client Testimonial We are very satisfied with the cooperation and project results. The team provides professional BIM design and accurate drawing optimization which solves our local code adaptation problems. The automatic production ensures stable product quality and fast delivery. The onsite installation guidance is detailed and efficient. The finished steel building has excellent load performance and anti corrosion effect. It fully meets our commercial and industrial usage requirements. We will maintain long term strategic cooperation for future steel structure projects.

1. Project Basic Information (Quantified Core Data) Project Location: Overseas coastal industrial zone Building Area: 28,600 ㎡ heavy industrial workshop Total Steel Consumption: 1,680 tons heavy steel structure Structure Type: Large-span rigid frame heavy steel structure with overhead crane load system Delivery Cycle: 75 days full-cycle production + 25 days on-site installation guidance Compliance Standard: Fully certified by AISC (US), EN1090 (EU CE), CSA (Canada), 100% compliant with local coastal building safety, wind resistance and anti-corrosion codes 2. Customer Core Pain Points The overseas general contractor faced multiple technical and schedule bottlenecks before cooperation. First, the large-span workshop requires super heavy load-bearing capacity for industrial overhead traveling cranes, bringing strict structural strength and stability challenges. Second, the coastal high-salt and high-humidity environment causes severe steel corrosion risks, demanding long-term anti-rust and anti-corrosion performance. Third, the local construction codes and international standard certification thresholds are extremely strict, making standard matching and document approval difficult. In addition, the project had an extremely tight construction schedule with zero delay tolerance. Meanwhile, the customer lacked professional steel structure drawing deepening and BIM optimization capabilities, resulting in repeated revision risks and low construction efficiency. 3. Customized One-Stop Engineering Solution We delivered a full-link customized solution integrating design, production, anti-corrosion treatment and overseas technical guidance to solve all customer pain points. Adopting Q460 high-strength heavy steel material, it greatly improves overall structural rigidity and meets ultra-large-span heavy-load operation requirements. Professional BIM 3D modeling and structural finite element analysis optimize the overall force distribution, eliminate structural design defects and complete full set of drawing deepening and standard filing. Equipped with professional coastal heavy-duty anti-corrosion coating system to adapt to harsh marine climate. Supported by fully automated CNC production lines, we realize high-precision component manufacturing. We also provide whole-process overseas on-site installation guidance and standard technical docking services, ensuring full compliance with local international codes. 4. Production & Delivery Implementation Process All steel components adopt standardized industrial production procedures: precise CNC cutting, automatic robotic welding, professional weld flaw detection, heavy-duty shot blasting rust removal and multi-layer high-performance anti-corrosion painting. All production processes strictly follow AISC, EN1090 and CSA standard specifications, with complete quality inspection records and certification documents. After finished production, standardized container loading and whole-process tracked sea transportation are adopted to ensure intact delivery of all steel components to the overseas construction site, supporting rapid on-site assembly. 5. Final Project Completion Effect The project has been fully completed and officially put into operation. The overall steel structure is stable and firm, with perfect large-span flatness and no structural deformation. The internal heavy-load crane system operates stably and meets long-term industrial production load requirements. The exterior anti-corrosion coating is uniform and flat with excellent weather resistance. Aerial panoramic view shows neat and standardized overall construction effect. All structural indexes, safety performance and energy-saving indicators fully meet local official acceptance standards and international engineering specifications, achieving zero safety hazard and zero quality defect acceptance. 6. Core Cooperation Value This one-stop steel structure solution effectively shortens the overall project cycle by 30% and saves comprehensive engineering construction and revision costs for customers. All products and construction processes fully comply with AISC, EN1090, CSA and local building energy-saving & safety codes, successfully passing local official strict inspection and certification. The professional multi-layer heavy anti-corrosion system provides 30-year long-term anti-corrosion quality guarantee for coastal harsh working conditions, greatly reducing later maintenance costs and improving the overall service life and safety stability of the building. 7. Customer Testimonial “The professional BIM design capability, high-standard Q460 heavy steel manufacturing and strict international standard control solved all our technical and schedule difficulties in this coastal large-span heavy steel project. The product quality is stable, the delivery is efficient, and the overseas installation guidance is professional and in place. It is a reliable long-term international steel structure engineering partner.” — Authorized feedback from Overseas Alpha Construction Engineering Group

Commercial Steel Buildings｜Project Case Study 1. Project Basic Information(Quantified Core Data) Project Country: United States, Florida (coastal high‑salt marine environment) Building Area: 21600 ㎡ Total Steel Consumption: 1860 metric tons Structure Type: Heavy‑duty portal rigid frame steel structure, 42 m clear large‑span, 16.5 m eave height, compatible with 50‑ton overhead heavy‑duty crane system Delivery Cycle: 105 days total (BIM design + factory fabrication + sea shipping); 48‑day on‑site erection guidance cycle Compliance Standards: AISC 360‑22, EN 1090‑2 EXC3, CSA S16‑19, ISO 12944‑5 coastal heavy anti‑corrosion system 2. Client Pain Points The local general contractor met multiple tough bottlenecks before cooperation: Large‑span heavy‑load requirement: Require 42‑meter column‑free inner space for multiple 50‑ton overhead cranes. Conventional steel solutions failed to satisfy deflection and load‑bearing requirements, bringing hidden safety risks. Coastal salt‑fog corrosion risk: Atlantic coastal location, high humidity and salt spray, long‑term corrosion threat to steel members. Strict local building codes: Complex US local industrial building approval documents, lack of engineering team familiar with AISC/EN1090 cross‑standard conversion. Tight project timeline: Client needed to finish erection and put into production within 5 months, local fabricators could not match such schedule. Drawing deepening difficulty: Original conceptual drawings existed structural collision defects; client had no professional team to complete fabrication‑level drawing deepening and calculation reports. 3. Customized One‑Stop Solution Delivered full‑chain integrated service covering design, manufacturing, anti‑corrosion treatment, shipping and overseas technical guidance: BIM digital design: Adopt Revit + Tekla BIM 3D modeling, finish structural simulation, clash detection, drawing deepening, output full set of calculation reports & erection manuals for local authority review. Q460 high‑strength heavy steel: Main frame box columns and beams adopt Q460 heavy steel, meet large‑span heavy‑load mechanical performance requirements, optimize steel consumption without sacrificing safety margin. Full‑automatic production line: CNC cutting, robotic automatic welding, shot‑blasting surface treatment, multi‑layer heavy‑duty anti‑corrosion coating, strictly follow international welding & painting specification. Complete drawing deepening service: Provide fabrication drawings, connection node drawings, material list, third‑party inspection documents. Overseas installation guidance: Dispatch professional field engineers for remote & on‑site erection guidance, standardize bolt connection and installation sequence for local construction crew. 4. Production & Delivery Reference Visual Points(For picture / short‑video material) Production workshop: CNC steel plate cutting scene, robotic automatic heavy‑steel welding station Surface treatment: Shot‑blasting cleaning, multi‑layer anti‑corrosion spray coating production line Loading & shipment: Heavy steel component container loading, sea‑freight outbound shooting BIM output: 3D model screenshot, clash‑check report sample, fabrication drawing preview 5. Final Project Outcome Completed real‑site building: Overall elevation real shot, full‑site aerial panoramic view Internal scene: 42 m zero‑column inner space, 50‑ton overhead crane running status Facade detail: Wall & roof panel installation detail, anti‑corrosion coating surface condition Acceptance result: Passed local third‑party inspection, fully compliant with AISC and CSA standards, factory officially put into production on schedule. 6. Cooperation Value Summary Cost saving: Integrated design‑fabrication solution reduced client comprehensive procurement cost by 17 %, avoided rework loss caused by drawing defects. Schedule optimization: Shortened overall project cycle by 32 %, helped client realize early commissioning. Code compliance: Fully satisfied US local safety and energy‑saving building regulations, smooth official acceptance. Long‑term durability: Heavy‑duty anti‑corrosion system delivers 30‑year anti‑corrosion guarantee for main steel frame, greatly lowers later‑stage maintenance investment. 7. Customer Testimonial(English, for website & brochure) “We are impressed with this commercial steel‑building project. Their BIM engineering team solved our large‑span load and drawing‑deepening obstacles efficiently. Q460 heavy‑steel fabrication and anti‑corrosion workmanship meet AISC and CSA requirements perfectly. The whole order was shipped on schedule, and overseas installation guidance supported our local crew well. The finished building satisfies our heavy‑crane operation and coastal‑environment demands completely. We will keep long‑term strategic cooperation for our upcoming steel‑structure projects.” ——Project Director, US Local General Contractor