刚节点钢连接梁循环静载试验  

STATIC CYCLIC-LOADING TEST ON RIGID CONNECTION OF STEEL GIRDER COMBINED WITH ARTICULATED BEAM AND CONCRETE PIER

作　　者：吉伯海[1] 杨明[1] 

机构地区：[1]河海大学土木学院,南京210098

出　　处：《工业建筑》2005年第11期14-16,共3页Industrial Construction

摘　　要：提出一种新型的钢梁与钢筋混凝土桥墩刚节点连接形式,即通过在主梁下部增设连接梁,将刚节点部分下移至混凝土桥墩的顶部。通过对三种不同试验模型进行静载反复试验,获得了有关这种新型结构性能方面的有效数据。试验结果表明,该结构内部应力传递路径明确,即使在发生很大变形的情况下,也能保持良好的能量吸收功能。增加连接梁高度和剪力传递螺栓数量对结构整体抗震性能的提高有着明显改善。A new type of rigid connection of steel girder and reinforced concrete pier is proposed, by increasing an articulated beam under the main beam to make the rigid connection partly move down to the top of concrete pier. Based on the static cyclic-loading tests of three kinds of experimental models, useful experimental data is obtained on the new type of connection of steel superstructure and concrete substructure. As a result, the stress transfer mechanism of this construction can be made clearly. It can be found that this type of connection has good energy absorption capacity in spite of large displacement. Extending the height of articulated beam and increasing the amount of shear bolt improve the seismic performance of the structure obviously.

关 键 词：组合结构 刚节点 连接梁 抗震性能 

分 类 号：TU391[建筑科学—结构工程]