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DOI:10.7672/sgjs2015140036
施工技术
CONSTRUCTION TECHNOLOGY
工字钢在某超高层剪力墙结构中的应用
包洪余，来武清，杨越
（中机中联工程有限公司，重庆400039）
2015年7月下第44卷第14期
【摘要】重庆某超高层剪力墙结构，底部大范围两层通高，且底部两侧墙肢受拉。设计时在穿层墙和受拉剪力墙中增设了工字钢。就工字钢对剪力墙的弹塑性性能的改善进行了分析，对型钢的选型和在边缘构件及墙身中的布置进行了描述，对型钢外侧箍筋的施工、型钢的拼接、型钢剪力墙基础的设计进行了阐述，对架纵筋在型钢剪力增中
的锚固连接做法进行了深化设计。验证了型钢设置的有效性和可行性。【关键词］高层建筑；剪力墙；工字钢；弹塑性性能；锚固
【中图分类号］TU758.11
【文献标识码］A
[文章编号】1002-8498(2015)14-0036-03
ApplicationoftheI-shapedSteelina
High-riseShearWallStructure Bao Hongyu,Lai Wuqing,YangYue
(China CMCU Engineering Corporation，, Chongqing400039,China)
Abstract: There is a super high-rise shear wall structure in Chongqing, of which a large range of the bottom is through two floors, and the shear wall of the two sides are in tension. I-shaped steel was added to the tension wall and the wall through two floors in the design phase. In this paper, improving of the elastic-plastic properties of shear wall by I-shaped steel was analyzed, the selection and layout of the I-shaped steel were described, the construction of the stirrups outside of the I-shaped steel and lengthening of the I-shaped steel and the foundation designing of the shear wall with I-shaped steel were elaborated, the anchorage and connection of the longitudinal reinforcement of the beam in the shear wall were
designed to deepen. The effectiveness and feasibility of I-shaped steel settings was demonstrated. Key words : tall buildings; shear walls; I-shaped steel; elastic-plastic properties; anchorage
1
工程概况
重庆某超高层住宅建筑，地下6层车库和商业，
地上51层住宅。为满足住宅建筑的功能要求，平面呈Y形，结构形式采用剪力墙结构。结构嵌固端设
置在－3F楼板处，嵌固层以上的结构高度为 182.50m，为超B级高度的剪力墙结构。结构存在当回不规则、扭转不规则、楼板局部不连续等3项不规则。
建筑地面人户大堂处存在大面积两层通高的情况，形成较多的穿层墙。标准层和通高楼层的结构平面布置如图1所示。计算发现，结构底部两侧的墙肢（图1中的Q1）在中震和大震下出现较大的拉力。
*中机中联工程有限公司（原机械工业第三设计研究院）建筑一所科研基金
［作者简介】包洪余，工程师，E-mailbhy870809@163.com【收稿日期］2015-03-27
a标准层
Q1
b通高楼层
图1结构平面布置
Fig.1Structureplan layout
Q
结构设计时，在穿层墙的边缘构件中设置工字
钢，以提高穿层墙的抗震性能。在受拉墙肢的约束边缘构件及墙身中均匀设置工字钢，以抵抗墙肢的拉力。穿层墙约束边缘构件中的工字钢向通高楼层上下各延伸1层。受拉墙肢中的工字钢在墙肢受拉的楼层布置，并向下延伸埋人基础内。
本文就工字钢对剪力墙抗震性能的改善、工字钢的选型和布置情况、工字钢的拼接、工字钢外箍