侧向压力作用下承插型盘扣式钢管支撑架承载性能研究  

Research on Bearing Properties of Socket-Type Disc-Lock Steel Tubular Scaffolds dISC-Disk-buckle

作　　者：施耀锋 SHI Yaofeng(Shanghai Tunnel Engineering Co.,Ltd.,Shanghai 200032,China)

机构地区：[1]上海隧道工程有限公司,上海200032

出　　处：《工业建筑》2024年第11期203-210,共8页Industrial Construction

基　　金：上海市科技计划项目(23DZ1202903)。

摘　　要：目前国内外关于承插型盘扣式脚手架的研究主要集中在竖向荷载作用下,针对侧向荷载作用下承插型盘扣式脚手架力学性能的研究较少。通过试验研究和有限元模拟相结合的方法,对侧向荷载作用下承插型盘扣式脚手架的力学性能和破坏模式进行了深入分析,研究了承插型盘扣式脚手架在侧向荷载作用下的杆件受力特征。结果表明:立杆、斜撑杆在限制架体下部以及中部侧移时发挥了重要作用,受力方向的斜杆提高了架体抗变形能力及稳定性;连墙杆的布置可有效约束架体上部侧移,但是由于扣件强度限制,伴随荷载增大,会出现扣件滑移、断裂等现象。At present,the research on socket-type Disc-lock scaffolds at home and abroad mainly focuses on the vertical load working condition,while there is less research on the scaffold under lateral loads.This article conducts An in-depth analysis of the mechanical properties and failure modes of the socket-type disc-lock scaffolds under lateral loads was conducted by combining physical experiments and ABAQUS finite element simulations.The study on the stress condition of the scaffold’s members under lateral loads showed that upright rods and diagonal braces played an essential role in restricting the lateral displacement of the lower and middle parts of the scaffold.The diagonal braces in the direction of the force enhanced the scaffold’s deformation resistance and stability.The arrangements of the tie-in rods effectively constrained the lateral displacement of the upper part of the scaffold.However,due to the limitation of the fastener’s strength,fastener slippage and fracture might occur as the load increased.

关 键 词：承插型盘扣式脚手架 侧向荷载 有限元分析 力学性能 破坏模式 

分 类 号：TU731.2[建筑科学—建筑技术科学]