钢管煤矸石砼中核心砼的强度准则及本构关系  

The Constitutive Equation and Strength Criterion on Core Concrete of Gangue Concrete Filled Steel Tube

作　　者：李帼昌[1] 刘之洋[1] 杨良志 

机构地区：[1]东北大学资源与土木工程学院,辽宁沈阳110004 [2]赤峰第一建筑公司,内蒙古赤峰024000

出　　处：《东北大学学报（自然科学版）》2002年第1期64-66,共3页Journal of Northeastern University(Natural Science)

基　　金：辽宁省自然科学基金重大资助项目 (9910 3 0 0 2 0 1)

摘　　要：采用理论分析与试验研究相结合的方法 ,通过对试验数据的计算、分析推导出钢管煤矸石混凝土组合材料中核心混凝土的强度准则及本构关系 ;分析了含钢率及混凝土轴心抗压强度对钢管约束下的煤矸石混凝土极限抗压强度的影响规律 ,指出低强度的煤矸石混凝土更适合与钢管相结合形成钢管煤矸石混凝土 ,充分发挥紧箍效应·The constitutive equation and strength criterion on core concrete of gangue concrete filled steel tube were developed by the calculation and analysis based on test data; The maximum compressive strength of gangue concrete restrained by steel tube is affected by steel ratio and gangue concrete standard strength under axial load. The lower strength concrete is more suitable to be filled into steel tube and restraining force is more obvious.

关 键 词：钢管煤矸石砼 核心砼 强度准则 本构关系 含钢率 轴心抗压强度 钢管混凝土结构 

分 类 号：TU398.9[建筑科学—结构工程]