梁腹板开圆孔的钢框架抗震节点  

Aseismic Connection of Steel Moment-resisting Frame with Opening on Beam Web

作　　者：杨庆山[1] 

机构地区：[1]北京交通大学土木建筑工程学院

出　　处：《中国安全科学学报》2005年第2期45-50,40,共7页China Safety Science Journal

基　　金：国家自然科学基金资助(50278001)。

摘　　要：介绍了梁腹板开圆孔的钢框架梁柱节点 ,笔者探讨的基本思路是希望通过对梁截面的削弱确保结构在强震作用时的塑性铰远离节点域而出现在梁上 ;同时 ,该节点形式应用于住宅体系时 ,使水暖管线穿梁和降低结构空间占用成为可能。因此 ,笔者对该节点形式的基本受力性能及设计中需要考虑的构造措施进行了较详细的探讨 ,并利用ANSYS对其塑性区分布和剪应力分布进行了分析。研究结果初步表明 ,梁腹板开圆孔的钢框架节点具有理论上的合理性和实用上的可行性 ,可达到塑性铰外移和增加使用功能的目的。The aseismic connection of steel moment resisting frame with opening on beam web is introduced. It is expected that the plastic hinge of the frame subject to severe earthquake generated on beam sections could be made far away from the connection, and pipe lines for water and gas supply could pass through the beam to improve the application efficiency of room space in residence buildings. The elastic plastic behaviors and design details are analyzed systematically, and the distributions of plastic area and sheer stress are discussed parametrically. Preliminary results show the design concept of the connection is theoretically reasonable and feasible in application to make the plastic hinge out of the connection and improve the application efficiency of the room space.

关 键 词：钢框架 梁柱节点 腹板 塑性铰 抗震 构造措施 节点域 架梁 结构空间 ANSYS 

分 类 号：X43[环境科学与工程—灾害防治] TU391[建筑科学—结构工程]