基于多弹簧模型的铝合金面板蒙皮刚度研究  

Diaphragm Stiffness of Aluminum Alloy Panel Based on Multi-spring Model

作　　者：郭小农[1] 欧阳辉 陈宣宇 邓俊杰 GUO Xiaonong;OUYANG Hui;CHEN Xuanyu;DENG Junjie(College of Civil Engineering,Tongji University,Shanghai200092,China;Tongji Architectural Design(Group)Co.,Ltd.,Shanghai200092,China)

机构地区：[1]同济大学土木工程学院,上海200092 [2]同济大学建筑设计研究院(集团)有限公司,上海200092

出　　处：《施工技术（中英文）》2022年第20期123-127,共5页Construction Technology

基　　金：国家自然科学基金(51878473)。

摘　　要：考虑到蒙皮效应对网壳整体稳定性和承载力的有利影响,在对铝合金网壳面板刚度的模拟中,提出一种多弹簧单元的简化计算模型。在三角形蒙皮区格内,通过多种弹簧单元模型与板单元半刚性模型的对比,验证了多弹簧单元模型的可靠性,进一步论证了六弹簧单元模型具备足够的精度与计算效率。通过参数分析,研究了蒙皮面板厚度、蒙皮区格尺寸、面外荷载、面板预应力等因素对三角形蒙皮区格蒙皮刚度的影响规律。Considering the beneficial influence of diaphragm effect on the overall stability and bearing capacity of reticulated shells, a simplified calculation model of multi-spring element is proposed in this paper during the simulation of the panel stiffness of aluminum alloy reticulated shells. In the triangular diaphragm grid, the reliability of the multi-spring element model is verified by comparing the multi-spring element model with the semi-rigid plate element model, and the sufficient accuracy of the six spring elements model is further demonstrated. Through parameter analysis, the influence of diaphragm panel thickness, diaphragm grid size, out of plane load and prestress on the diaphragm stiffness in the triangular skin panel is studied.

关 键 词：铝合金面板 多弹簧单元模型 预应力 蒙皮刚度 

分 类 号：TU392.6[建筑科学—结构工程]