大刚度裙房多塔结构实用简化设计方法探讨
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摘要
多塔结构整体设计分析难度大、可操作性差,难于考察各塔楼的静、动力特性。对于裙房刚度远大于塔楼刚度的多塔结构,可将整体模型简化为裙房模型和单塔模型进行设计,并将单塔模型的地震力进行一定比例放大。通过设置翼墙、加厚楼板与加强楼板配筋等措施来减小塔楼间楼板内的拉压应力。
It is difficult to operate and analysis a multi-tower structure with an overall modal.Meanwhile,it is tough to study on the static and dynamic characteristics of each tower in an overall modal.For a multi-tower structure whose podium's stiffness is much larger than each single-tower's,the overall modal can be simplified to the podium modal and each single-tower modals whose seismic forces were scaled.By setting the wing walls,thickening the slabs and increasing the reinforcement,the tension and compression stress in the slabs between towers could be reduced.
It is difficult to operate and analysis a multi-tower structure with an overall modal.Meanwhile,it is tough to study on the static and dynamic characteristics of each tower in an overall modal.For a multi-tower structure whose podium's stiffness is much larger than each single-tower's,the overall modal can be simplified to the podium modal and each single-tower modals whose seismic forces were scaled.By setting the wing walls,thickening the slabs and increasing the reinforcement,the tension and compression stress in the slabs between towers could be reduced.
引文
[1]GB50011—2010建筑抗震设计规范[S].北京:中国建筑工业出版社,2010.
[2]JGJ3—2010高层建筑混凝土结构技术规程[S].北京:中国建筑工业出版社,2011.
[2]JGJ3—2010高层建筑混凝土结构技术规程[S].北京:中国建筑工业出版社,2011.
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