型钢混凝土柱复合受扭极限性能试验研究  

Research on the Ultimate Performance of Steel-Reinforced Concrete Column under Combined Torsion

作　　者：盛炜仲 邵永健[1] 施怀博 SHENG Weizhong;SHAO Yongjian;SHI Huaibo(School of Civil Engineering,Suzhou University of Science and Technology,Suzhou 215011,China;School of Civil Engineering,Xuzhou University of Technology,Xuzhou 221009,China)

机构地区：[1]苏州科技大学土木工程学院,苏州215011 [2]徐州工程学院土木工程学院,徐州221009

出　　处：《结构工程师》2022年第1期118-126,共9页Structural Engineers

基　　金：2019年江苏省研究生科研创新计划项目(KYCX19_2027);江苏省研究生工作站(中亿丰建设集团股份有限公司)(2010_060)。

摘　　要：为揭示设计参数对型钢混凝土复合受扭柱极限扭矩和延性的影响规律,以轴压比、扭弯比、配箍率和加载方式等为设计参数,完成了3组15个试件的试验,并基于试验得到的数据进行了设计参数的影响分析。结果表明,提升轴压比对极限扭矩影响不大但会降低延性;提升扭弯比可提高极限扭矩和延性;提升配箍率可提升极限扭矩但降低延性;配置栓钉对极限扭矩影响不大但延性降低;配十字型钢能小幅提升极限扭矩并大幅提升延性;低周反复加载试件的极限扭矩与延性均低于单调加载试件,且受设计参数的影响程度减小。In order to research how the ultimate torque and ductility of steel-reinforced concrete column are affected under combined torsion.3 groups of concrete columns with embedded section steel are designed which set axial compression ratio,bending-torsion ratio,stirrup ratio,with or without stud,section steel type and loading method as control variables.Then experiment consisting of axial force,bending moment and torque is conducted.According to the results,increasing axial compression ratio enhances ultimate torque while weakens ductility.Increasing bending-torsion ratio both enhances ultimate torque and ductility.Boosting stirrup ratio significantly increases ultimate torque while lowers ductility.Enabling stud has little impact on ultimate torque but weakens ductility.Cross-type section steel slightly increases ultimate torque while significantly increases ductility.Cyclic load both lowers ultimate torque and ductility while suffers less impact from different variables.

关 键 词：型钢混凝土 复合受扭 试验 设计参数 极限扭矩 延性 

分 类 号：TU398.9[建筑科学—结构工程]