摘要
方钢管混凝土柱具有良好的受力性能,具有广阔的发展应用前景.对于很多工程而言,考虑到造价和施工方便,很多结构采用钢筋混凝土梁.结合我国现行钢管混凝土柱在实际工程中的应用状况,提出了用于方钢管混凝土柱-钢筋混凝土梁框架结构的新型连接节点形式--非穿心暗钢牛腿方钢管混凝土柱与混凝土梁节点,采用了X型加载试验方案,制作了1:3的试验模型,进行了低周反复荷载作用下的试验研究,得到了相关的钢筋应力应变发展规律和相应的滞回曲线,通过对试验结果进行的节点破坏的机理分析,从而提出了进一步的改进措施.试验研究结果初步表明,这种节点具有可靠的受力性能,与常规的连接方式相比是一种相对简捷而可靠的连接方式.
Steel rectangular tube column filled in concrete has been wide used with property of economical and convenient to constructed. In this paper a new type of connection between rectangular concrete-filled tubular column and reinforced concrete beam was proposed. One specimen with 1 ： 3 scale of modeling for the practical project has been tested. The test setup of X-shape has been adopted to realize the cyclic load. The experimental phenomena and the strain distribution on different parts of specimen were obtained from the test. Additionally, hysteresis curve of joint between column and beam under cyclic loads was plotted and anti-seismic performance of joint has been discussed. The perliminary experimental results indicate that this kind of joint has reliable performance and it is simple to be constructed.
出处
《建筑技术开发》
2005年第12期58-61,共4页
Building Technology Development
基金
国家自然科学基金，甘肃省科技攻关项目，兰州理工大学校科研和教改项目
关键词
非穿心暗钢牛腿
方钢管混凝土柱
节点连接
滞回曲线
破坏机理
Hidden steel corbel
Rectangular concrete-filled tubular column
Connection
Hysteresis curve
Anti-seismic performance
