钢结构模块波纹板抗侧刚度及设计方法研究

Research on side stiffness and design method of corrugated plate in steel structure module

钢结构模块建筑由于具有绿色环保、能耗低、施工效率高、劳动力需求少等优点,在国家大力推广下迎来了发展的上升期。然而,模块建筑不同于传统建筑形式,特别是在通用结构设计软件中,不能直接建立波纹板的计算模型,用有限元分析软件进行分析又不便于工程应用。为此,首先基于理论推导的抗侧刚度公式提出了便于通用结构设计软件建模的波纹板等效弹簧简化模型,并与试验值对比验证其合理性;然后通过对跨度、波纹板厚度、波峰高度和波长进行参数化分析,验证等效弹簧简化方式的适用性;最后以静海白领宿舍公寓项目为背景,建立波纹板刚度等效前后的MIDAS Gen整体分析模型,对比了它们在相同荷载作用下的整体结构响应。结果表明,波纹板在抗侧和受力方面可以发挥明显的作用,结构设计中应充分考虑其贡献。

Due to the advantages of green environmental protection,low energy consumption,high construction efficiency and low labor demand,the steel structure modular building has ushered in an upward period of development under the vigorous promotion of the country.However,the modular building is different from the traditional building form.Especially in the general structural design software,the calculation model of corrugated plate cannot be directly established,and the finite element analysis software is not convenient for engineering application.To this end,a simplified model of corrugated plate equivalent spring was proposed based on the theoretical derivation of lateral stiffness formula,which was convenient for the modeling of general structural design software,and its rationality was verified by comparing with the experimental value.Then,the applicability of the equivalent spring simplification method was verified by parametric analysis of span,corrugated plate thickness,peak height and wavelength.Finally,based on the Jinghai white-collar dormitory apartment project,the MIDAS Gen overall analysis model before and after the corrugated plate stiffness equivalence was established,and their overall structural responses under the same load were compared.The results show that the corrugated plate can play a significant role in lateral resistance and stress,and its contribution should be fully considered in structural design.