某平面凹凸不规则且带错层和通高墙的超限高层建筑结构设计  

Structural design of an out-of-code high-rise building with convex irregular plane and split-level floors and through layer walls

作　　者：施尽波 黄桂新 练有为 邱伟亮 Shi Jinbo;Huang Guixin;Lian Youwei;Qiu Weiliang(Shenzhen Dongda International Engineering Design Co.,Ltd.,Shenzhen Guangdong 518042,China)

机构地区：[1]深圳市东大国际工程设计有限公司,广东深圳518042

出　　处：《山西建筑》2025年第3期61-66,共6页Shanxi Architecture

摘　　要：针对某平面凹凸不规则且带错层和通高墙的超限高层建筑结构,首先分析了结构在小震和风荷载作用下的各项指标;其次对凹凸不规则弱连接处楼板应力进行了详细分析;再次对错层处剪力墙设计、底部通高墙体平面外计算长度进行了重点分析;最后采用大震弹塑性时程分析方法验算了结构薄弱层层间塑性位移角。分析结果表明:对于单肢正交形式的凹凸不规则结构,应加强单肢与中心区连接范围的楼板厚度及配筋,中震作用下,楼板满足钢筋抗拉弹性,混凝土抗剪不屈服;中震作用下,错层处剪力墙会受到上下层楼面错位而产生的平面外和平面内附加剪力及弯矩,墙肢段竖向配筋应取平面外和平面内计算结果的包络值;通高墙体平面外计算长度不能盲目套用规范计算公式,应从结构整体来考察其计算长度;对于平面凹凸不规则的复杂超限高层建筑,应采用弹性动力时程补充验算层间位移角是否满足规范要求。Based on the irregular unevenness of a certain plane and the presence of staggered floors and high walls in an o-ver limit high-rise building structure,the various indicators of the structure under small earthquakes and wind loads were first analyzed;Secondly,a detailed analysis was conducted on the stress of the floor slab at irregular weak connections;We conducted a focused analysis on the design of shear walls at staggered levels and the out of plane calculation length of the bottom height wall;Finally,the large earthquake elastoplastic time history analysis method was used to verify the plas-tic displacement angle between the weak layers of the structure.The analysis results indicate that for irregular structures with single limb orthogonal form,the thickness and reinforcement of the floor slab in the connection range between the sin-gle limb and the central area should be strengthened.Under moderate earthquake action,the floor slab meets the tensile elasticity of the steel bars and the concrete does not yield in shear resistance;Under the action of a moderate earthquake,shear walls at staggered levels will be subjected to additional shear forces and bending moments outside and inside the plane caused by the displacement of upper and lower floors.The vertical reinforcement of wall segments should take the envelope value of the calculation results outside and inside the plane;The calculation length outside the plane of the high-rise wall cannot be blindly applied to the standard calculation formula,and its calculation length should be examined from the perspective of the overall structure;For complex over limit high-rise buildings with irregular planar irregularities,elas-tic dynamic time history should be used to supplement and verify whether the inter story displacement angle meets the specification requirements.

关 键 词：凹凸不规则 超限高层结构 错层 通高墙 弹塑性时程分析 

分 类 号：TU352.11[建筑科学—结构工程]