- 摘 要
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（1 內(nèi)蒙古科技大學(xué)土木工程學(xué)院， 包頭 014010； 2 沈陽工學(xué)院能源與水利學(xué)院， 沈陽 113122）
［摘要］通過對四個設(shè)置不同構(gòu)造的節(jié)點試件進(jìn)行低周反復(fù)試驗，觀察PEC柱弱軸-H型鋼梁節(jié)點域設(shè)置豎向加勁肋后抗震性能的改變和節(jié)點域不設(shè)加勁肋單純增加蓋板厚度或端板厚度的抗震效果。結(jié)果表明，PEC柱弱軸-H型鋼梁節(jié)點域設(shè)置豎向加勁肋后，其破壞形式和節(jié)點域關(guān)鍵部位應(yīng)變分析結(jié)果理想，節(jié)點的承載力、延性、剛度和耗能能力明顯提高，更好地滿足了“強節(jié)點”的抗震設(shè)計要求。在不設(shè)加勁肋的情況下，單純增加蓋板厚度節(jié)點的破壞形式和節(jié)點域關(guān)鍵部位應(yīng)變分析結(jié)果理想，節(jié)點的承載力提高，但延性和耗能能力會降低；單純增加端板厚度節(jié)點的破壞形式?jīng)]有發(fā)生改變，節(jié)點域關(guān)鍵部位應(yīng)變分析不理想，節(jié)點承載力沒有明顯改變，延性和耗能能力會降低。
［關(guān)鍵詞］PEC柱； 弱軸節(jié)點； 端板連接； 抗震性能
中圖分類號：TU375-2文獻(xiàn)標(biāo)識碼：A文章編號：1002-848X(2018)21-0097-06
Research on seismic behavior of connections between PEC column weak axis and H-type steel beams
Zhao Gentian1， Yang Chunxiao1,2， Zhu Yu1
(1 Civil Engineering School, Inner Mongolia University of Science & Technology, Baotou 014010, China； 2 College of Energy and Water Resources， Shenyang Institute of Technology, Shenyang 113122,China)
Abstract:To observe the seismic performance of PEC column weak axis and H-type steel beams with vertical stiffener and simply increasing thickness of cover plate or end plate without vertical stiffener, low cyclic loading tests were conducted for four different connections specimens. The results show that when vertical stiffener is added to the joint, the failure mode and key parts strain analysis of joints perform ideal, and the bearing capacity, ductility, stiffness and energy dissipation capacity of the joints improve significantly, it is better meet the “strong connection” seismic design requirement. When the stiffener is not setted, in the case of just increasing the thickness of cover plat, the failure mode and key parts strain analysis of joints perform ideal, and the bearing capacity of the joints improve significantly, but its ductility and energy dissipation capacity reduce. In the case of just increasing the thickness of end plat，the failure mode and key parts strain analysis of joint perform unsatisfactory, and the bearing capacity has no obvious changes and its ductility and energy dissipation capacity reduce in addition.
Keywords:PEC column; weak axis connection; end plate connection; seismic performance
*國家自然科學(xué)基金（51268042）。
作者簡介：趙根田，博士，教授，Email：zhaogentian93110@sina.com。
