新型SRC柱-RC梁节点在对称荷载下静力性能试验研究  

Static tests on ring-beam connections for SRC columns and RC beams under symmetrical load

作　　者：王载[1] 林旭川[2] 王文宇[1] 潘鹏[2,3] 叶列平[2,3] 钱稼茹[2,3] 

机构地区：[1]中国建筑设计研究院,北京100044 [2]清华大学土木工程系,北京100084 [3]清华大学结构工程与振动教育部重点实验室,北京100084

出　　处：《建筑结构》2009年第8期36-39,43,共5页Building Structure

摘　　要：提出了一种新型的钢骨混凝土柱-钢筋混凝土梁的环梁节点,该节点传力途径为:框架梁剪力经环梁扩散传递给节点以下钢骨混凝土柱;框架梁端弯矩首先传递给环梁,环梁依靠整体拉压形成力偶将弯矩传递给钢骨混凝土柱。采用在柱顶施加恒定轴力的同时给框架梁端施加竖向力的加载模式,分别对正交、斜交两种形式的节点进行了单调受弯试验和单调受剪试验。试验结果表明,该类节点可以有效实现"强节点弱构件"的设计目标。同时,给出了新型环梁的配筋验算方法。A novel ring-beam connection is proposed for steel reinforced concrete （SRC） columns and RC beams. The force transferring mechanism is as follows： the shear forces and moments of the RC beams were firstly transferred to the ring-beam connections and then to the SRC columns. A series of monotonic static tests were conducted to verify the applicability and effectiveness of the ring-beam connections. In the tests, vertical loads were firstly applied to the tops of the columns to simulate the effects of the gravity, and then forces were exerted to the beams. The restdts from the tests show that the ring-beam connections with appropriate design can satisfy strong connection weak beam requirement. Simple design methods are suggested based on the test results.

关 键 词：环梁节点 单调加载试验 钢骨混凝土柱 混凝土梁 有限元分析 设计方法 

分 类 号：TU377[建筑科学—结构工程] TU375.3