某图书馆结构超限设计  

Structural Transfinite Design of a Certain Library

作　　者：刁志纬 都磊 DIAO Zhiwei;DU Lei(Architecture and Engineering Co.,Ltd.of Southeast University,Nanjing Jiangsu 210096China)

机构地区：[1]东南大学建筑设计研究院有限公司,江苏南京210096

出　　处：《江苏建筑》2024年第6期57-62,共6页Jiangsu Construction

摘　　要：某图书馆结构高度28.50 m,平面尺寸为84.50 m×65.00 m,采用钢筋混凝土框架结构。为解决左侧悬挑过大,D1轴采用斜柱,使最大悬挑长度降低为3.80 m,斜柱范围从2层斜至4层。右侧因建筑立面需要,DE轴采用斜柱,从2层斜至3层。结构5层楼板大面积缺失,导致楼板不连续和穿层柱等不规则项。通过PKPM和MIDAS软件,对结构进行了弹性时程分析、中震及大震计算、动力弹塑性分析、斜柱专项分析、楼板温度应力分析和其它分析。结果表明,结构满足正常使用极限状态及承载能力极限状态,支承大跨框架柱、斜柱和穿层柱等关键构件满足拟定的抗震性能化目标,结构安全可靠。A certain library has a structural height of 28.50 m and a plane size of 84.50 m×65.00 m.It is a reinforced concrete frame structure.To solve the problem of excessive overhang on the left side,inclined columns are used on the D1 axis,reducing the maximum overhang length to 3.80 m.The range of inclined columns is from the 2nd to the 4th floors.On the right side,due to the need for building facades,the DE axis adopts inclined columns.The range of inclined columns is from the 2nd to the 3rd floors.The slabs on the 5th floor are largely missing,resulting in irregularities such as slab discontinuities and through-story columns.Through PKPM and MIDAS software,elastic time history analysis,medium and large earthquake calculation,dynamic elastic-plastic analysis,inclined columns special analysis,slab thermal stress analysis,and other analyses were carried out.It is shown that the structure meets both the normal service limit state and bearing capacity limit state,and key components such as supporting large-span frame columns,inclined columns,and through-story columns meet the proposed seismic performance goals.The structure is reliable and safe.

关 键 词：斜柱 超长结构 楼板不连续 穿层柱 

分 类 号：TU313[建筑科学—结构工程]