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(1 北京建筑大學(xué)土木與交通工程學(xué)院， 北京 100044； 2 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；  3 中設(shè)安泰（北京）工程咨詢有限公司， 北京 100044)

［摘要］針對(duì)在框架-核心筒體系中核心筒內(nèi)混凝土次梁對(duì)滑模、爬模施工技術(shù)的不利影響，提出了帶凹槽剪力墻-混凝土梁節(jié)點(diǎn)。該節(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。在已完成三個(gè)變凹槽節(jié)點(diǎn)試驗(yàn)的基礎(chǔ)上，對(duì)帶凹槽剪力墻-混凝土梁節(jié)點(diǎn)抗彎承載力，受剪承載力進(jìn)行理論分析，在此基礎(chǔ)上提出相應(yīng)計(jì)算公式。經(jīng)對(duì)比，帶凹槽剪力墻-混凝土梁計(jì)算理論計(jì)算值與試驗(yàn)值、模擬值相差比例在15%以內(nèi)，能夠?yàn)楣?jié)點(diǎn)設(shè)計(jì)提供理論支撐。

［關(guān)鍵詞］框架-核心筒體系； 帶凹槽剪力墻-混凝土梁節(jié)點(diǎn)； 受彎承載力； 受剪承載力； 理論分析

中圖分類號(hào)：TU375-4文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2019)17-0084-06

Theoretical analysis of bearing capacity of grooved shear wall-concrete beam joint

Zhang Yanxia1,2, Sun Yu1, Xu Bin3, Zhang Hexin1

(1 School of Civil and Transportation Engineering, Beijing University of Civil Engineering and Architecture, Beijing 100044, China; 2 Beijing Higher Institution Engineering Research Center of Structural Engineering and New Materials, Beijng University of Civil Engineering and Architecture, Beijing 100044, China;  3 China Design Security (Beijing) Engineering Consultancy Co., Ltd., Beijing 100044, China)

Abstract:A new grooved shear wall-concrete beam joint was proposed aimed at the negative effects of concrete secondary beams in the corewall on the sliding form and climbing formwork technologies for frame-corewall system. Under the premise of being compatible with the sliding form and the climbing formwork technologies, the joint possesses strong bearing capacity and can meet the structural design requirements of the inner beam of the corewall shear wall to work as a secondary beam to bear and transfer the vertical loads. On the basis of three experiments of variable grooved joints completed, theoretical analyses were carried out on mechanical mechanism as well as bending and shearing capacity of the proposed grooved shear wall-concrete beam joint and then the corresponding calculation formula were proposed. By comparison, the ratio of theoretical calculation value to experimental value and simulation value was less than 15%, which could provide theoretical support for joint design.

Keywords:frame-corewall system; grooved shear wall-concrete beam joint; bending capacity; shear capacity; theoretical analysis

*國(guó)家自然科學(xué)基金面上項(xiàng)目（91778036），長(zhǎng)江學(xué)者和創(chuàng)新團(tuán)隊(duì)發(fā)展計(jì)劃資助（IRT_17R06）。

作者簡(jiǎn)介：張艷霞，博士，教授，博士生導(dǎo)師，Email：zhangyanxia@bucea.edu.cn。