双肢钢管混凝土短柱轴压力学性能研究  

STUDY OF BEHAVIOR OF DOUBLE-COMPONENT CONCRETE-FILLED STEEL TUBE STUB COLUMNS SUBJECTED TO AXIAL-COMPRESSION

作　　者：王波[1] 王艳晗[1] 

机构地区：[1]北京林业大学水土保持学院,北京100083

出　　处：《低温建筑技术》2015年第2期57-59,共3页Low Temperature Architecture Technology

摘　　要：为研究双肢异形钢管混凝土短柱轴压力学性能受肢间夹角的影响,利用有限元软件ABAQUS建模对夹角为90°的双肢异形钢管混凝土短柱轴心受压进行了计算,计算结果与试验结果符合良好。在此基础上,建立了肢间夹角为90°、105°、120°、135°、150°、165°、180°模型,对其力学性能与夹角之间的相互作用进行了分析。通过对比不同规范下钢管混凝土柱的轴压承载力,给出适用于双肢异形钢管混凝土短柱的承载力计算公式。In order to study the mechanical properties of double-component concrete-filled steel tube stub columns influenced by the angle under axial compression, the simulation analysis for 90° double- component concrete-filled steel tube stub column under axial compression was carried out with finite element ABAQUS, and the simulation results and experiment results were proved in agreement with each other. On this basis, the model of 90°, 105°, 120°, 135°, 150°, 165°, 180° were carried out and the interaction between the mechanical properties and the angle was analyzed. Based on comparing the bearing capacity of concrete filled steel tube under differert specifications, a practical calculation formula for ulti- mate bearing capacity of double-component concrete-filled steel tube stub columns was proposed.

关 键 词：桥梁工程 双肢异形 夹角 有限元模型 轴压 

分 类 号：TU375[建筑科学—结构工程]