Philippine office building project: Yirong steel frame structure solution
Yirong Steel Structure’s customized office building project in Manila, Philippines, serves as a benchmark for all-steel structure green offices in Manila, successfully delivering a comprehensive solution integrating efficiency, environmental protection, and modernity. The project covers an area of 663 square meters (39m x 17m), with a total building area of approximately 2652 square meters (four stories) and a building height of 16 meters (including terraces), perfectly meeting the high-intensity usage requirements of the tropical monsoon climate.
Yirong Steel Structure provides a full-chain integrated service from conceptual design to final acceptance. This includes detailed design, material customization, international logistics coordination, on-site installation guidance, and post-construction technical training. This ensures the project is efficiently completed within 6 months, becoming a model for steel structure construction in Southeast Asia.
At the structural design level, the project adopts an innovative all-steel frame system, with all main beams and columns using Q355H high-strength low-alloy hot-rolled steel (compliant with GB/T 1591 standards). Its yield strength reaches 355MPa, tensile strength 510MPa, and it possesses excellent weather resistance and corrosion resistance, effectively withstanding the high temperature and humidity of Manila and typhoon attacks.
The beam-column connection adopts a high-strength bolt friction connection (M20 grade, torque 1000N·m), which, compared with traditional welding processes, not only shortens the construction period by 30% but also significantly improves the structural seismic resistance (meeting the 8-degree seismic fortification standard) and facilitates later maintenance and modification. Each floor has a height of 4 meters, and through optimized beam span design, a column-free, large-space layout is achieved, providing flexible floor plan planning for the office area.
Architectural details fully reflect energy saving and comfort:
Wall system: The exterior facade uses 75mm rock wool insulation sandwich panels with a thermal conductivity of 0.035W/(m·K), achieving a 90% thermal resistance rate, effectively blocking tropical solar radiation and reducing air conditioning energy consumption by approximately 25%. The interior partitions utilize 100mm thick metal insulation panels (aluminum panels covered with polyurethane foam), offering both sound insulation (NRC 0.8) and fire resistance (Class A non-combustible), ensuring a quiet and safe office environment.
Roof Structure: Innovative application of 50mm thick EPS extruded polystyrene roofing panels (density 30kg/m³, compressive strength ≥0.2MPa), covered with a PE waterproof membrane, forming a double waterproof barrier and achieving 0% leakage. Simultaneously, a reflective coating design increases solar radiation reflectivity to 70%, significantly mitigating the heat island effect, resulting in an indoor temperature 5℃ lower than traditional roofs.
Doors and Windows: All windows use thermally broken aluminum alloy frames (6mm double-glazed windows), achieving an airtightness level of 6 and a light transmittance of 80%, ensuring natural lighting while suppressing heat conduction. Each floor features a 2-meter wide terrace (78m²/floor), employing a lightweight steel structure cantilever design with non-slip floor tiles, providing employees with rest areas and scenic views. The side steel structure staircase (1.2 meters wide, 300mm tread depth) integrates safety railings and anti-slip treads, complying with Philippine building codes (BP 344) to ensure safe passage and smooth traffic flow.
Yirong’s professional depth is demonstrated throughout the entire service process:
Design Phase: 1:1 virtual construction simulation using BIM technology (Revit model) optimizes details and reduces on-site changeover rate to below 5%.
Material Supply: Q355H steel is directly supplied from Chinese steel mills and undergoes third-party testing (SGS certification) to ensure its composition and mechanical properties meet standards. Insulated sandwich panels, EPS boards, and other auxiliary materials are all ISO 9001 certified and comply with Philippine SIRP environmental standards.
International Logistics: Coordinated booking and transportation at Qingdao Port, using full container loads (40-foot high cube), with full temperature control and protection (humidity ≤60%), completing sea freight from China to Manila within 15 days, with a loss rate controlled within 0.5%.
Installation Guidance: An engineer was stationed on-site for 28 days, providing bolt torque calibration, welding process training, and safety briefings. 45 local workers were trained, ensuring installation accuracy error ≤3mm and a 100% first-time acceptance rate.
This project not only won high praise from the client for its 20% reduction in construction time and 15% optimization of overall costs, but also set an industry benchmark for promoting low-carbon buildings in the Philippines through its green design throughout the entire lifecycle (reducing carbon emissions by 35%). Yirong Steel Structure, driven by both technology and service, continues to provide high-quality and efficient solutions to the Southeast Asian market.
