Overview
Composite steel deck welded truss is an engineered structural system that integrates steel trusses with profiled steel decking. It serves as both temporary support during construction and permanent reinforcement after concrete pouring. The system is widely adopted in high-rise buildings, warehouses, and parking structures due to its efficiency and versatility. The prefabricated nature of these trusses allows for rapid on-site assembly, significantly reducing construction time compared to traditional methods. Manufacturers typically produce them in standard lengths, but custom configurations are available for specialized projects.
Structure and Working Principle
The welded truss consists of parallel steel chords connected by diagonal web members, all welded to a corrugated steel deck. This creates a rigid framework that distributes loads efficiently across the span. The decking's embossments mechanically bond with poured concrete, creating a composite section with enhanced strength. During installation, the trusses are placed on supporting beams at predetermined intervals. After welding and bracing, concrete is poured over the decking. Once cured, the system behaves as a unified structural element, with the steel resisting tension and the concrete handling compression forces.
Key Features
The system's primary advantage is its dual functionality as both formwork and structural reinforcement, eliminating the need for traditional wooden forms. Its open web design allows for easy integration of mechanical, electrical, and plumbing systems within the floor cavity. Other notable features include consistent quality control through factory fabrication, reduced material waste compared to cast-in-place systems, and excellent vibration damping characteristics. The galvanized coating provides long-term corrosion protection, especially important in humid or coastal environments.
Application Areas
Composite steel deck trusses are particularly suitable for projects requiring long spans without intermediate supports, such as auditoriums, airports, and sports facilities. They're also ideal for projects with tight construction schedules due to their rapid installation. In industrial settings, their high load capacity makes them perfect for heavy manufacturing plants and distribution centers. The system's fire-resistant properties, achieved through concrete encapsulation of steel members, meet stringent building codes for high-occupancy structures.
Maintenance and Precautions
While the system requires minimal maintenance post-installation, proper handling during construction is crucial. Workers should avoid impact damage to the galvanized coating, and any scratches should be treated with zinc-rich paint. Regular inspections should verify the integrity of welded connections. Special attention must be paid to temporary bracing during concrete placement to prevent excessive deflection. Design professionals should calculate required propping locations and durations based on the specific concrete mix design and ambient conditions.
B2B Procurement Guide
When sourcing composite steel deck trusses, buyers should evaluate manufacturers based on their certification (such as ISO 9001), production capacity, and project references. Lead times typically range from 2-6 weeks depending on order volume and complexity. Key specifications to confirm include steel grade (commonly Q345 in China or ASTM A572 in international projects), deck thickness (0.8mm-1.5mm), and concrete cover requirements. For export projects, verify compliance with destination country standards like Eurocode 4 or AISC specifications. Bulk orders (10,000+ square meters) often qualify for 5-15% quantity discounts.
Related Manufacturers
- 主营：铝桁架、景桁架、铁桁架、桁架舞台、桁架出租、桌椅桁架、蝴蝶桁架、桁架租赁、镀锌桁架、铝合金桁架、弹簧头桁架
- 主营：彩钢瓦、微孔拉伸网、岩棉净化板、钢筋桁架楼承板、压型板铁皮瓦
- 主营：c型钢、z型钢、几字型钢、楼承板、钢筋桁架楼承板、闭口楼承板、开口楼承板、燕尾楼承板、净化板、复合岩棉板、钢结构加工、钢结构施工、光伏支架、角钢、u型钢
- 主营：pc桁架机、焊接设备、pc钢筋桁架、桁架机设备、焊接桁架机、钢筋桁架机、数控钢筋桁架、钢筋桁架焊接、钢筋桁架三角、钢筋桁架设备、桁架机器设备、桁架钢筋焊接
- 主营：输送机防尘罩、钢结构、折叠房、楼承板、组合楼板、装配式楼承板、输送机防护罩、输送机防雨罩、彩钢瓦、净化板、彩钢板、镀锌檩条、网架结构、430铝合金、铝镁锰板、彩钢岩棉、预埋螺栓、聚氨酯板、集装箱板、镀锌天沟、泡沫板、网架料仓、金属屋面、C型钢
- 主营：钢筋桁架楼承板、楼承板
- 主营：钢结构加工安装、钢结构、钢结构工程、钢结构楼房、承接彩钢房、钢结构搭建、钢结构施工、钢结构网架、网架安装、钢结构厂房、钢构厂房、钢网架、钢结构房屋、工字钢、C型钢、钢结构工程施工、钢结构建筑搭建、钢柱钢梁、镀锌钢材、钢结构仓库、镀锌槽钢、热镀锌方形管、U型钢材、钢架构工程
- 主营：铝镁锰板、彩钢板、钢结构檩条、桁架楼承板、热镀锌z型钢、钢结构厂房檩条、钢结构屋面檩条、镀锌槽钢、镀锌花纹板、精密彩钢板、复合保温彩钢板、波浪型彩钢板、建筑彩钢板、仿古彩钢板、屋面彩钢压型板、防静电彩钢板、彩钢夹芯板、隔音彩钢夹芯板、超薄彩钢板、卷涂彩钢板、玻镁彩钢板、装配式彩钢板、冷库彩钢板、阻燃彩钢板、单层彩钢板
- 主营：闭口式钢筋桁架楼承板、镀锌c型槽
- 主营：防爆板、抗暴板、纤维水泥板、钢筋桁架楼承板、钢结构轻型楼层板、楼板、水泥压力板、纤维水泥压力板、轻质隔墙板、阻尼隔音板、玻镁板、硅酸钙板、内外墙装饰材料、纤维增强水泥复合钢板、纤维增强水泥压力板、20厚水泥纤维板价格、菱镁板、室内地板砖、护墙板、纤维水泥通体板、纤维水泥拉槽板、纤维水泥木纹板、纤维水泥防爆板、纤维水泥抗暴板、防火板
- 主营：槽钢、角钢、工字钢、楼承板、H型钢、方管、镀锌管、无缝管、焊管、钢板、地脚螺栓、花纹板、冷拉方钢、衬塑管钢塑管、螺旋管、中厚板、预埋件、钢轨、不锈钢板、角码、光伏支架
- 主营：洞洞板、墙面板、屋面板、楼承板、切割焊接、彩钢瓦、屋檐瓦、吸音板、镀锌板、抗压板、耐磨板、冲孔板、琉璃瓦、穿孔板、屋顶装饰、冲孔铝板、压型钢板、冲孔网板、铝镁锰板、冶金钢材、多层厂房、涂层钢板、幕墙装饰、防盗窗垫、化工护栏
- 主营：通瑞德、彩钢板压、大邱庄铝镁、楼承板厂家、金属大邱庄、镀锌带方管、大邱庄彩钢板、铝镁锰合金板
- 主营：彩钢板、中厚板、彩钢卷、2mm钢筋焊接楼承板、造船板、彩涂卷、桥梁钢板、彩涂钢板、船用钢板、锅炉容器板、拉森钢板桩、彩钢压型板、压力容器板
- 主营：屋面板、钢构复合板、墙面复合板、钢桁架轻型板、夹层轻质楼板、钢筋桁架楼承板、公寓内外墙板、钢骨架轻型板
- 主营：钢结构、岩棉复合板、岩棉夹芯板、钢筋桁架楼承板、泡沫复合板、泡沫夹芯板、聚氨酯夹芯板、聚氨酯复合板、彩钢瓦、彩钢板、墙面板、复合板、压型钢板、外墙保温板、彩钢岩棉板、复合保温板、彩钢压型瓦、彩钢压型板、C型钢、Z型钢、钢结构檩条、C型钢檩条、Z型钢檩条