轻屋面平板空间网格结构优化初设计  

Optimal initial design of plane lattice structure with light roof

作　　者：杜刚[1] 窦洪涛[2] 郭兵[2] 

机构地区：[1]同济大学土木工程学院,上海200092 [2]山东建筑工程学院土木工程学院,山东济南250014

出　　处：《山东建筑工程学院学报》2005年第1期8-11,共4页Journal of Shandong Institute of Architecture and Engineering

摘　　要：为了快速合理地确定轻屋面网架结构的建筑尺寸,通过对不同建筑尺寸及结构形式的400余个轻屋面网架结构的计算分析,探讨了用钢量与网架跨度、网架高度、长跨比以及网格大小等建筑尺寸的关系,重点对比了不同建筑尺寸网架的跨高比与用钢量之间的关系,确定了经济跨高比的选择范围以及合理网格尺寸的选择建议。本文还讨论了起坡与抽空对优化设计的有利作用,并根据以上分析结果提出了合理的初设计建议。In order to choose the dimension of plane lattice structure scientifically and quickly, the steel consumptions of more than 400 lattice structures with different dimensions and shapes were analyzed. The relationship between the steel consumption and structure dimensions such as span, height, length-to-span ratio, lattice dimensions etc. was discussed. The emphasis was put on the effect of span-to-height ratio on steel consumption in different plane lattice structures. Based on the analysis, the range of economical span-to-height ratio and scientific lattice dimensions were presented, which can be referenced for optimal initial design.

关 键 词：平板网架 用钢量 跨度 跨高比 网格尺寸 

分 类 号：TU391[建筑科学—结构工程]