圆钢管混凝土柱与RBS钢梁节点的参数分析

Parametric Analysis on the Circular CFST Column and RBS Steel Beam Joints.

作者信息

Li Rui, Yu Yang, Samali Bijan, Li Chengyu

机构信息

Centre for Infrastructure Engineering, Western Sydney University, Penrith, NSW 2751, Australia.

Urban Construction College, Wuhan University of Science and Technology, Wuhan 430065, China.

出版信息

Materials (Basel). 2019 May 10;12(9):1535. doi: 10.3390/ma12091535.

DOI:10.3390/ma12091535

PMID:31083385

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6539099/

Abstract

This research analyzes the results of parametric studies of concrete-filled steel tubular (CFST) columns to the reduced beam section (RBS) beam joint with through diaphragm, using ANSYS. Several indices that are able to characterize the cyclic behavior of the composite joints are investigated, including the stiffness degradation, strength deterioration, stress distribution, and energy dissipation capacity. Four main model parameters, including the distance from the diaphragm edge to the cut start, the cut length, the cut depth, and inner diameter of through diaphragm, are analyzed via comparative studies to investigate their impacts on seismic properties of the joint. Finally, the orthogonal experiment is conducted to study the effects of these parameters on the strength and energy dissipation, the results of which are capable of achieving optimal seismic behavior of the joints.

摘要

本研究使用ANSYS分析了钢管混凝土（CFST）柱与带贯通横隔板的缩减梁段（RBS）梁节点的参数研究结果。研究了几个能够表征组合节点循环性能的指标，包括刚度退化、强度劣化、应力分布和能量耗散能力。通过对比研究分析了四个主要模型参数，包括横隔板边缘到切口起点的距离、切口长度、切口深度和贯通横隔板的内径，以研究它们对节点抗震性能的影响。最后，进行了正交试验以研究这些参数对强度和能量耗散的影响，其结果能够实现节点的最佳抗震性能。