The behaviour of semi-rigid through-diaphragm connection between steel I-section beams and tubular columns under monotonic and cyclic loading

单调和循环荷载作用下钢工字形梁与管柱之间的半刚性穿板连接性能

基本信息

批准号：
EP/I020489/1
负责人：
Tak Ming Chan
金额：
$ 13.1万
依托单位：
University of Warwick
依托单位国家：
英国
项目类别：
Research Grant
财政年份：
2011
资助国家：
英国
起止时间：
2011 至无数据
项目状态：
已结题

来源：
https://gtr.ukri.org/projects?ref=EP%2FI020489%2F1
关键词：
behaviour semi rigid through diaphragm

项目摘要

Employing a combined programme of full-sized testing and computational simulations this project will characterise the novel semi-rigid through-diaphragm connections between steel tubular columns and I-section beams. Open I-sections are the most common and efficient horizontal members to support the flooring system. The vertical members can either be open H-sections or tubular (structural hollow) sections. The latter has shown an increasing popularity due to its structural efficiency including high strength to weight ratio, high torisonal stiffness and pleasant appearance. In particular, circular and elliptical hollow sections possess inherent curvatures which allow architects to express the steel-framed buildings in a creative and exciting architecture in the built-environment. However, these advantages are often under-exploited due to the perceived difficulties on cost effective connections between I-beams and tubular columns. There is also a relative lack of design guidance in particular the reliability of semi-rigid connections under cyclic loading which will provide essential scientific information including energy dissipative behaviour for seismic design. New test and numerical results from this research for both monotonic and cyclic loadings will be used to prepare design rules for steel structures with sustainable credentials to be executed anywhere in the world. It will also help the UK to meet its strategy for sustainable construction.

该项目采用全尺寸测试和计算模拟的组合程序，将描述钢管柱和工字梁之间新型半刚性贯穿隔膜连接的特征。开放式工字型材是支撑地板系统最常见、最有效的水平构件。垂直构件可以是开放式 H 形截面或管状（结构空心）截面。后者因其结构效率（包括高强度重量比、高扭转刚度和美观的外观）而越来越受欢迎。特别是，圆形和椭圆形空心截面具有固有的曲率，使建筑师能够在建筑环境中以创造性和令人兴奋的建筑形式表达钢框架建筑。然而，由于工字梁和管柱之间的成本有效连接存在困难，这些优点常常没有得到充分利用。还相对缺乏设计指导，特别是循环荷载下半刚性连接的可靠性，这将为抗震设计提供包括能量耗散行为在内的重要科学信息。这项针对单调和循环载荷的研究的新测试和数值结果将用于制定具有可持续资格的钢结构设计规则，以便在世界任何地方执行。它还将帮助英国实现其可持续建设战略。