考慮塑性鉸外移的鋼框架梁柱連接設(shè)計
蔡益燕
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(中國建筑標(biāo)準(zhǔn)設(shè)計研究院 北京100044)
[提要]介紹美國聯(lián)邦突發(fā)事件管理局( FEMA)對1994年北嶺地震中焊接鋼框架節(jié)點破壞原因的正式解釋，說明塑性鉸外移的必要性。此外，還介紹了塑性鉸外移的兩種基本形式以及狗骨式( RPJS)連接的有關(guān)設(shè)計規(guī)定和適用條件，其設(shè)計方法可供我國工程設(shè)計人員參考。[關(guān)鍵詞] 鋼框架連接 塑性鉸 狗骨式( RPJS)連接Abstract：The explanations published in FEMA 350 0n damage of connections in welded steel frames induced by Northridge Earthquake in 1994 are introduced. Two basic types of beam-to-column connections using idea of shifting away plastic hinge from column face as well as design requirements of reduced beam section( RBS) connections are expounded.Keywords: beam-to-column connection; plastic hinge; RBS connection
