钢管混凝土轴压构件简化公式的可靠指标分析  

Reliability index analysis on simplified formulas about concrete filled steel tubular axial compressive members

作　　者：刘艳芬[1] 全建升[2] 

机构地区：[1]内蒙古科技大学建筑与土木工程学院,内蒙古包头014010 [2]河北工程大学土木工程学院,河北邯郸056038

出　　处：《福建建设科技》2012年第3期26-27,共2页Fujian Construction Science & Technology

摘　　要：本文根据《建筑结构可靠度设计统一标准》(GB50068-2001)和《建筑结构设计统一标准》(GBJ68-84),利用一次二阶矩法中的验算点法(JC法),计算了韩林海教授所提出的两种截面形式的钢管混凝土轴压构件设计简化公式的可靠指标。计算结果表明:两种截面形式的钢管混凝土轴压构件的可靠指标,均符合规范中目标可靠指标的要求:可靠指标受混凝土强度等级、含钢率大小的影响较大,此外,钢材种类。This article calculate the reliability index of the simplified design formulas of concrete filled tubular axial compressive members of two kinds of section forms, which was forwarded by Professor Han Linhai with design point method in the second mo- ment of first order method （JC method）, based on Unified Standard for Reliability Design of Building Structures（GB 50068-2001） and Unified Standard for Design of Building Structures （GBJ68-64）. It shows that both reliability index meet the specifications re- quirement, and the influence of concrete strength and steel ratio is more greater to reliability index, besides, the influence of steel type,load ratio is less.

关 键 词：钢管混凝土 轴压 可靠性 验算点法 

分 类 号：TU398.9[建筑科学—结构工程]