- 摘 要
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(1 北京工業(yè)大學(xué)建筑工程學(xué)院, 北京 100124; 2 北京工業(yè)大學(xué)北京市高層和大跨度預(yù)應(yīng)力鋼結(jié)構(gòu)工程技術(shù)中心, 北京 100124; 3 北京建誼投資發(fā)展(集團(tuán))有限公司, 北京 100071)
[摘要]首鋼二通廠南區(qū)棚改定向安置房項(xiàng)目1#住宅樓(24層)采用鋼框架(鋼管混凝土柱+H型鋼梁)+防屈曲鋼板剪力墻裝配式鋼結(jié)構(gòu)體系,選擇的結(jié)構(gòu)抗側(cè)力構(gòu)件分別為防屈曲鋼板剪力墻、中心支撐以及組合鋼板剪力墻的結(jié)構(gòu)體系,并對(duì)其進(jìn)行了計(jì)算分析,對(duì)比了不同結(jié)構(gòu)體系的關(guān)鍵技術(shù)指標(biāo)。同時(shí)通過(guò)有限元模型研究了與防屈曲鋼板剪力墻相連梁的剛度變化對(duì)鋼板剪力墻受力性能的影響,針對(duì)防屈曲鋼板剪力墻對(duì)鋼梁的局部作用提出了加強(qiáng)措施。結(jié)果表明:與其他結(jié)構(gòu)體系相比,鋼框架+防屈曲鋼板剪力墻結(jié)構(gòu)體系結(jié)構(gòu)布置更加靈活,材料成本更低,并且防屈曲鋼板剪力墻的布置對(duì)結(jié)構(gòu)的抗扭轉(zhuǎn)更有利;實(shí)際工程中防屈曲鋼板剪力墻按照規(guī)范設(shè)計(jì)能夠滿足承載力和安全性的設(shè)計(jì)要求;設(shè)置局部加勁肋和加強(qiáng)框架梁腹板厚度能夠延緩鋼梁的應(yīng)力增大,減小鋼板剪力墻對(duì)鋼梁局部的影響。
[關(guān)鍵詞]鋼框架+防屈曲鋼板剪力墻結(jié)構(gòu)體系;裝配式鋼結(jié)構(gòu);抗側(cè)力構(gòu)件;防屈曲鋼板剪力墻;中心支撐;組合鋼板剪力墻
中圖分類號(hào):TU391 文獻(xiàn)標(biāo)識(shí)碼:A文章編號(hào):1002-848X(2021)17-0085-06
Application of steel frame + anti-buckling steel plate shear wall structural system in prefabricated steel residences
ZHANG Ailin1,2, SU Lei1, CAO Zhiliang3, PU Shuanghui3, LIN Haipeng3
(1 College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100124, China;2 Beijing Engineering Research Center of High-rise and Large-span Prestressed Steel Structure, Beijing University of Technology, Beijing 100124, China; 3 Beijing Jianyi Investment Development (Group) Co., Ltd., Beijing 100071, China)
Abstract: The prefabricated steel structural system of steel frame (concrete-filled steel tube column and H-shaped steel beam) + anti-buckling resistant steel plate shear wall was adopted in 1# 24-storey residential building of the resettlement project of Shougang Ertong Factory in south area. The structural systems of anti-buckling steel plate shear wall, central support and composite steel plate shear wall were selected as lateral force-resisting member to be calculation analyzed and compared by their key performance indicators for different structural systems. Meanwhile, through the finite element model, the influence of stiffness change of the beam connected with anti-buckling steel plate shear wall on the mechanical behavior of steel plate shear wall was studied, and the improvement measures were proposed for the local effect of anti-buckling steel plate shear wall on steel beam. The results indicate that: compared with other structural systems, the structural layout scheme of steel frame + anti-buckling steel plate shear wall structural system is more flexible and can save material cost. And the layout plan of anti-buckling steel plate shear wall has a favorable influence on torsion effect. In practical engineering projects, the design of anti-buckling steel plate shear wall according to the code can meet the requirements of bearing capacity and safety. Setting local stiffeners and increasing the thickness of frame beam web can delay the development of the stress in beam web and reduce local effect of steel plate shear wall on steel beam.
Keywords:steel frame+anti-buckling steel plate shear wall structural system; prefabricated steel structure; lateral force-resisting member; anti-buckling steel plate shear wall; central support; combined steel plate shear wall
*國(guó)家重點(diǎn)研發(fā)計(jì)劃項(xiàng)目( 2017YFC0703809)。
作者簡(jiǎn)介:張愛林,教授,博士生導(dǎo)師,Email: zhangal@bjut.edu.cn; 通信作者:曹志亮,碩士,高級(jí)工程師,一級(jí)注冊(cè)結(jié)構(gòu)工程師,Email: caozhiliang@bjjy.com。
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