蜂窝轻钢门式刚架静力性能试验研究  

The experimental research on static behavior of castellated light-weight steel portal frame

作　　者：张雯[1] 苏益声[1,2] 皮云东[1] 李启良 郑述芳[4] 吴泽球[1] 

机构地区：[1]广西大学土木建筑工程学院,广西南宁530004 [2]广西大学广西防灾减灾与工程安全重点实验室,广西南宁530004 [3]广西华蓝设计(集团)有限公司建筑设计院,广西南宁530011 [4]广西大学行健文理学院,广西南宁530005

出　　处：《广西大学学报（自然科学版）》2013年第4期801-809,共9页Journal of Guangxi University（Natural Science Edition）

基　　金：国家自然科学基金资助项目(50968003);广西科学研究与技术开发计划项目(桂科攻0995008);广西防灾减灾与工程安全重点实验室项目(20122DX02);2012广西研究生教育创新计划项目(YCSZ2012016);广西大学2010级大学生实验技能和科技创新能力训练基金立项项目(syjn20120524)

摘　　要：为了研究蜂窝轻钢门式刚架在静力荷载作用下的受力性能,对3榀蜂窝轻钢门式刚架试件进行了竖向荷载作用下的静力试验,以揭示该新型结构的应力发展规律、典型孔口及截面的应力分布、破坏机理。试验研究结果表明:试件破坏时梁柱多处孔周边达到屈服,孔间"墩"处鼓曲变形,导致刚架失去承载力;刚架绝大部分典型截面基本符合平截面假定;构件开孔率对承载力及刚度有明显影响,开孔率越大,承载力越低,刚度越小。圆形开孔形式优于六边形开孔形式。In order to study the static behavior of the castellated light-weight steel portal frame, three castellated light-weight steel portal frames were designed for vertical loading experiments to re- veal stress development, stress distribution of typical orifice and section, and failure mechanism of this new type of structure. The results showed that the specimens were damaged due to the yielding of most orifices and the buckling of piers between holes ; most of the typical sections of the frame ac- cord with the plane section hypothesis; the hole ratio in web has appreciable effect on the bearing capacity and stiffness, both of which are reduced with the increase of hole ratio, and circular hole is better than hexagonal hole.

关 键 词：蜂窝轻钢门式刚架 钢结构 静力性能 

分 类 号：TU391[建筑科学—结构工程]