碗扣式钢管模板支撑架足尺模型承载力试验研究  

Experimental Study on the Bearing Capacity of Full-scale Cuplok Steel Tubular Supporting Frame

作　　者：辛克贵[1] 黄勋[1] 沈邕 金同乐[1] 

机构地区：[1]清华大学土木工程安全与耐久教育部重点实验室,北京100084 [2]北京盛明建达工程技术有限公司,北京102200

出　　处：《施工技术》2010年第12期67-70,共4页Construction Technology

基　　金：铁道部科技研究开发计划重点课题资助项目(2010G016-G)

摘　　要：碗扣式钢管模板支撑架因其性能优越,在我国大跨建筑和桥梁工程中的使用越来越广泛。脚手架倒塌事故也在不断发生。对模板支撑架承载力理论研究尚未透彻是引起事故的重要因素之一。为研究柱距和外立面斜撑因素对碗扣式模板支撑架承载力的影响,按照工程实际搭设规格设计3组试验架,得到3组支撑架体的承载力、破坏形态、荷载位移曲线、应力分布情况,同时还监测到可用于施工监控的关键数据。Because of its own superiority,the cuplok steel tubular supporting frame has been more and more used in long-span building construction and bridge construction.Unfortunately,the supporting frame accidents occur frequently.The major cause of such accidents is the imperfection of the bearing capacity theory on the supporting frame.In order to study the effects of bay length and outside bracing on the bearing capacity and according to the engineering application,three elaborately-designed full-scale tests were carrized out,moreover,the details of bearing capacity,failure modes,load-displacement curves,stress distribution,and horizontal displacement data were gained,which will be used as a verified case for further research and construction monitoring.

关 键 词：碗扣式模板支撑架 试验研究 承载力 施工监控 

分 类 号：TU731.2[建筑科学—建筑技术科学]