大型火力发电厂梁-柱-支撑节点单向加载试验研究  

AN UNIAXIAL LOADED EXPERIMENTAL STUDY OF BEAM-PILLAR SUPPORTED JOINT IN LARGE COAL-FIRED POWER PLANTS

作　　者：蒋兆栋[1,2] 

机构地区：[1]同济大学建筑工程系,上海200092 [2]同济大学建筑设计研究院(集团)有限公司,上海200092

出　　处：《工业建筑》2015年第2期119-124,共6页Industrial Construction

摘　　要：以发电厂厂房钢结构中普遍采用的梁-柱-支撑节点为对象,根据工作点的不同,设计3个试件,进行单向加载试验。首先将极限承载力的试验结果与现有设计方法的计算结果进行分析对比,给出相应的计算建议;其次对单调加载时斜支撑轴力进行受力分析;最后与反复加载的试验结果进行对比。研究结果表明,不同的传力点在设计中的承载能力有一定区别;当支撑不出现屈服、连接角钢的强度和刚度满足要求时,采用现有方法进行计算是偏于安全的;若连接角钢的强度和刚度不能满足要求时,应采用所提出的计算方法进行计算。An uniaxial loaded experiment of beam-pillar supported joint widely used in steel structure workshop was introduced. Three specimens of different working place was studied. A comparison between the result under ultimate load and the result of the present method was made. The axial force of slanting brace was obtained and was compared with the stress of repeatedly loaded experiment. The result showed that the joint had different load carrying capacity in different working place. The present calculation method was safe when the brace was not yielded and the stiffness and strength of the connection angle steel could meet the requirements. The method proposed in this paper could be used when the stiffness and strength of the connection angle steel could not meet the requirements.

关 键 词：梁-柱-支撑节点 单向加载 承载能力 试验 

分 类 号：TU391[建筑科学—结构工程]