建筑结构

2005, (04) 38-40

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哈尔滨欧洲新城地下车库结构合理设计
Structural Design on an Underground Parking Garage in Harbin City

许名鑫,郑文忠
Xu Mingxin,Zheng Wenzhong(School of Civil Engineering,Harbin Institute of Technology,Harbin 150090,China)

摘要(Abstract):

哈尔滨欧洲新城地下车库周边为厚2 5 0mm的钢筋混凝土墙,车库总宽为42m ,通过设置直径为80 0mm的内柱形成跨度不等的两跨梁,一跨为2 5. 2m ,另一跨为1 6. 8m。由于预应力大梁承受的荷载大,且两跨跨度不等,在外荷载作用下,柱难以承受过大的弯矩。为了不增大柱截面尺寸,同时又使其受力合理,通过合理选择梁中预应力筋线型达到了减小柱端控制弯矩的目的。
Underground parking garage of Ouzhouxincheng in Harbin has a 250mm thickness reinforced concrete wall along its boundary and an overall length of 42m.Inner column whose diameter is 800mm divides the beam into two spans,one is 25 2m,the other is 16 8m.As the prestressed concrete girder carries heavy loads and the two spans are different,the moment caused by outer loads is too great to support for the inner column.For unchanging the section size of the column and optimizing the structural design,profile of prestressing tendons were selected rationally to decrease the control momemt of the columns.

关键词(KeyWords): 预应力;混凝土;内柱;预应力筋线型
basement garage; prestressing concrete;inner column;profile; prestressing tendons

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金资助项目 (5 0 1780 2 6)

作者(Author): 许名鑫,郑文忠
Xu Mingxin,Zheng Wenzhong(School of Civil Engineering,Harbin Institute of Technology,Harbin 150090,China)

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DOI: 10.19701/j.jzjg.2005.04.012

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