裝配式梁柱邊節(jié)點抗震性能試驗研究
柳旭東，王東輝，劉帥，郭紅玲
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(中國中建設(shè)計集團(tuán)有限公司遼寧分公司， 沈陽 110015)
［摘要］針對現(xiàn)有節(jié)點形式，研發(fā)出一種新型裝配式節(jié)點，提出該新型裝配式梁柱節(jié)點的構(gòu)成。通過對3個試件進(jìn)行試驗，研究了試件在地震作用下的破壞形態(tài)、滯回曲線和骨架曲線。結(jié)果表明：該節(jié)點為核心區(qū)斜壓破壞，滯回曲線呈捏縮現(xiàn)象，滯回環(huán)包圍的面積較小，節(jié)點核心區(qū)的耗能能力較差；試件破壞后，核心區(qū)內(nèi)搭接范圍的鋼筋未被拔出，滿足試驗?zāi)康?。利用ABAQUS有限元軟件建立精細(xì)模型，對試驗過程進(jìn)行模擬，模擬結(jié)果與試驗結(jié)果吻合較好，表明所建立的模型是合理的。［關(guān)鍵詞］裝配式梁柱節(jié)點; 抗震性能; 試驗研究; 有限元模擬中圖分類號：TU375.4 文獻(xiàn)標(biāo)識碼：A 文章編號：1002-848X(2016)10-0087-04
Experimental study on seismic behavior of prefabricated edged beam-column jointLiu Xudong, Wang Donghui, Liu Shuai, Guo Hongling(China Construction Engineering Design Group Corporation Limited Liaoning Branch Company, Shenyang 110015, China)Abstract: In view of the existing joint form, a new type of prefabricated joint was developed. The constitution of the new type of prefabricated beam-column joint was proposed. The failure modes, hysteretic curves and skeleton curves of the specimens under earthquake action were studied by the experiments on 3 specimens. The results show that the joint suffers from the diagonal compression failure in core area, and the hysteresis curve features pinch phenomenon with small area surrounded by hysteresis loop and poor energy dissipation capacity in the core area of the joint; after the failure of the specimen, steel bars in overlap range of the core area are not pulled out, which meets the objective of the experiment. The fine model was established by using ABAQUS finite element software to simulate experiment process, and simulation results are in good agreement with the experimental results, which indicates that the model is reasonable.Keywords: prefabricated beam-column joint; seismic behavior; experimental study; finite element simulation
作者簡介：柳旭東，博士，高級工程師，Email: qcghl@163.com。
