基于可靠度指标的桁架优化研究  

TRUSS OPTIMIZATION RESEARCH BASED ON THE RELIABILITY INDEX

作　　者：周书敬[1] 张东敏[1] 徐志聪 

机构地区：[1]河北工程大学,河北邯郸056038 [2]中建三局第一建设工程有限责任公司,武汉510635

出　　处：《钢结构》2014年第1期1-3,16,共4页Steel Construction

摘　　要：利用加权线性响应面法计算结构杆件可靠度指标,将可靠度指标作为桁架优化约束条件,用改进粒子群算法进行桁架截面优化,通过经典10杆平面桁架截面优化算例,与已有文献进行对比,为工程实践提供理论借鉴。By using the weighted linear response surface method to calculate reliability index of structure bar, the reliability index is considered as constraint of a truss optimization, using improved particle swarm algorithm truss section is optimized, through the classical ten-bar truss section optimization examples, and comparing existing literature, which can provide theoretical reference for engineering practice.

关 键 词：可靠度指标 改进粒子群算法 截面优化 

分 类 号：TU323.4[建筑科学—结构工程]