石家庄铁道大学学报(自然科学版)
石傢莊鐵道大學學報(自然科學版)
석가장철도대학학보(자연과학판)
JOURAL OF SHIJIAZHUANG TIEDAO UNIVERSITY(NATURAL SCIENCE EDITION)
2014年
3期
12-17
,共6页
体育场屋盖%斜拉索%预张力%优化
體育場屋蓋%斜拉索%預張力%優化
체육장옥개%사랍색%예장력%우화
stadium roof%cable-stayed%pretension%optimization
合理确定斜拉索的预张力是斜拉空间网格结构成败的关键,提出一种适用于半刚性结构的静力平衡法线性迭代优化方法。通过对灵武体育中心体育场屋盖斜拉索张力优化分析,获得{N3}=(1+0.3) N为优化预张力,结构最大竖向位移为跨度的1/718,各杆件应力/强度比基本在0.8以内。
閤理確定斜拉索的預張力是斜拉空間網格結構成敗的關鍵,提齣一種適用于半剛性結構的靜力平衡法線性迭代優化方法。通過對靈武體育中心體育場屋蓋斜拉索張力優化分析,穫得{N3}=(1+0.3) N為優化預張力,結構最大豎嚮位移為跨度的1/718,各桿件應力/彊度比基本在0.8以內。
합리학정사랍색적예장력시사랍공간망격결구성패적관건,제출일충괄용우반강성결구적정력평형법선성질대우화방법。통과대령무체육중심체육장옥개사랍색장력우화분석,획득{N3}=(1+0.3) N위우화예장력,결구최대수향위이위과도적1/718,각간건응력/강도비기본재0.8이내。
Reasonable determination of the pre-tension in cables is the key point to the success of cable-stayed spatial grid structure .This paper presents a linear iterative optimization method of static equilibrium meth-od suitable for semi-rigid structure .By analyzing and optimizing the tension in the roof cables of Lingwu Sports Center Stadium, this paper obtains the conclusion that {N3} =(1+0.3)N is the optimized pretension of the ca-bles , and under this circumstance , the maximum vertical displacement of the structure is 1/718 of the span and the stress /strength of each rod is less than 0.8.