摘要
本文研究结果基于一种新型轻型钢桁架步行桥,该步行桥主体结构由冷弯C型卷边型钢通过高强螺栓连接组成。针对该步行桥在力学性能上研究不足的问题,取一个单元的足尺试件进行静力荷载试验并利用PKPM建立模型进行分析,研究桥体在竖向荷载下强度和刚度是否满足要求,提出结构优化建议,同时为相关的轻型钢结构和类似的桥梁结构设计提供借鉴和参考。
The results of this paper are aimed at a new kind of lightweight steel truss foot-bridge. The main structure of the pedestrian bridge consists of the cold-formed C-beam steels connected by high-strength bolts. To supplement the lacking results on mechanical properties of pedestrian bridges, a full-scale test specimen from one unit is used to static load test and its PKPM model is established to study whether the strength and stiffness of the bridge under vertical load meet the requirements. Based on the experimental and numerical results, recommendations of the structural optimization are proposed in this paper, which can provide reference to relevant light steel structures and similar bridge structures.
出处
《广州建筑》
2016年第6期3-7,共5页
GUANGZHOU ARCHITECTURE
关键词
轻型钢
桁架结构
步行桥
螺栓连接
静力分析
lightweight steel
truss structure
pedestrian bridge
bolt connection
static analysis
