外框筒与椭球壳桁架铰接钢结构抗震性能研究
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摘要
深圳市少年宫水晶石大厅是一个外围由 16根钢管柱与上部平面网架组成的框架和中间由 3根钢管柱支承的椭球形空间网架相铰接的复杂结构。其外框筒柱子在环向由环梁支承 ,而径向因无中间支撑而导致长细比超过钢结构有关规范的要求。为了研究该类结构的抗震性能 ,对该结构 1∶2 0模型进行了振动台模拟试验和采用SAP2 0 0 0程序进行了动力分析。结果表明 ,其位移反应能满足相关规范的要求。
Crystal stone lobby of Shenzhen Children's Palace is a complicated structure combined by outer frame of 16 steel pipe columns and inner ellipse shell spatial truss. The columns of outer frame are braced by fra me beams along ring direction and by no radial mid support. So their slender ra tios along radial direction are greater than the allowable ones regulated by ste el design codes. In order to study the seismic performance of this type of struc ture, a shaking table test of 1/20 structural model is carried out and is also a n alyzed with SAP2000. It is found that its deformation response can meet the requ irements of relevant codes.
Crystal stone lobby of Shenzhen Children's Palace is a complicated structure combined by outer frame of 16 steel pipe columns and inner ellipse shell spatial truss. The columns of outer frame are braced by fra me beams along ring direction and by no radial mid support. So their slender ra tios along radial direction are greater than the allowable ones regulated by ste el design codes. In order to study the seismic performance of this type of struc ture, a shaking table test of 1/20 structural model is carried out and is also a n alyzed with SAP2000. It is found that its deformation response can meet the requ irements of relevant codes.
引文
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