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(1 中設(shè)安泰（北京）工程咨詢有限公司， 北京 100044； 2 中建一局集團(tuán)建設(shè)發(fā)展有限公司， 北京 100044； 3 北京建筑大學(xué)工程結(jié)構(gòu)與新材料北京市高校工程研究中心， 北京 100044)
［摘要］針對在框筒體系中核心筒內(nèi)混凝土次梁對滑模、爬模施工技術(shù)的影響，提出了帶凹槽剪力墻-混凝土梁節(jié)點(diǎn)。該節(jié)點(diǎn)采用在剪力墻混凝土澆筑前設(shè)置帶有易剔鑿的XPS聚苯乙烯泡沫擠塑板的預(yù)埋件的方式來解決以往澆筑剪力墻后直接剔鑿混凝土、施工費(fèi)時(shí)費(fèi)力的難題。以三個(gè)不同尺寸的凹槽節(jié)點(diǎn)為試驗(yàn)對象，在低周往復(fù)加載作用下，進(jìn)一步分析試件的滯回曲線、骨架曲線、破壞形態(tài)、耗能能力等力學(xué)性能。結(jié)果表明,帶凹槽剪力墻混凝土梁節(jié)點(diǎn)在滿足滑模、爬模施工的前提下，具有較強(qiáng)的承載能力，能夠滿足核心筒剪力墻內(nèi)部梁作為次梁承擔(dān)及傳遞豎向荷載的結(jié)構(gòu)設(shè)計(jì)要求。
［關(guān)鍵詞］框筒體系； 帶凹槽剪力墻-混凝土梁節(jié)點(diǎn)； 低周往復(fù)加載； 試驗(yàn)研究
中圖分類號：TU375-4文獻(xiàn)標(biāo)識(shí)碼：A文章編號：1002-848X(2019)17-0077-07
Experimental research on low-cycle reciprocating loading of the grooved shear wall-concrete beam joint
Xu Bin1, Kong Yatao2, Zhang Yanxia3, Guo Liang2, Zhang Hexin3
(1 China Design Security (Beijing) Engineering Consultancy Co., Ltd., Beijing 100044, China; 2 China Construction First Building(Group) Corporation Limited, Beijing 100044,China; 3 Beijing Higher Institution Engineering Research Center of Structural Engineering and New Materials, Beijng University of Civil Engineering and Architecture, Beijing 100044, China)
Abstract:A new grooved shear wall-concrete beam joint is proposed to eliminate the negative effects of concrete secondary beams in the core-cylinder system on the sliding form and climbing formwork technologies. The node adopts the method of pre-embedded parts with XPS polystyrene foam extruded board before the concrete wall pouring of the shear wall to solve the problem that it is time-consuming and laborious to directly dig the concrete after pouring the shear wall. In order to study the mechanical properties of the nodes, three grooved shear wall-concrete beam joints with different dimensions are selected in this paper as testing specimen to conduct low-cycle reciprocating loading and to study the mechanical properties such as hysteresis curves, skeleton curves, failure mode and energy dissipation capacities.Under the premise of being compatible with the sliding form and the climbing formwork technology, the joint possesses strong bearing capacity and can meet the structural design requirements of the inner beam of the core tube shear wall working as a secondary beam to bear and transfer the vertical loads.
Keywords:frame tube system; grooved shear wall-concrete beam joint; low cycle reciprocating loading; experimental study
*國家自然科學(xué)基金面上項(xiàng)目（91778036），長江學(xué)者和創(chuàng)新團(tuán)隊(duì)發(fā)展計(jì)劃資助（IRT_ 7R06）。
作者簡介：徐斌，碩士，教授級高級工程師，Email：1871323045@qq.com。
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