型钢混凝土柱受剪承载力的统一计算公式  

Unified shear capacity calculation of steel reinforced concrete columns

作　　者：伍凯[1,2] 薛建阳[1] 赵鸿铁[1] 

机构地区：[1]西安建筑科技大学土木工程学院,陕西西安710055 [2]河海大学土木与交通学院,江苏南京210098

出　　处：《世界地震工程》2010年第3期85-90,共6页World Earthquake Engineering

基　　金：国家自然科学基金项目(50978217);教育部留学回国人员科研基金项目(教外司留[2007]1108号);陕西省教育厅自然科学专项基金项目(09JK551)

摘　　要：随着高强、超高强混凝土应用于型钢混凝土结构,型钢混凝土柱受剪承载力的计算缺乏统一的计算公式。为了能够反映型钢混凝土柱的实际受力,提出了以混凝土抗拉强度为基础、考虑型钢与混凝土共同工作的受剪承载力公式。公式形式简单并且能够与《混凝土结构设计规范》（GB50010-2002）衔接,适用于工程实践。通过77根型钢高强、普强混凝土柱的对比分析,计算结果与试验结果吻合。公式可应用于混凝土强度在C30~C80之间的型钢混凝土柱,可以将型钢普强混凝土柱和型钢高强混凝土柱的受剪承载力计算统一,因此可称之为型钢混凝土柱受剪承载力的统一计算公式。Recently,high-strength concrete and ultra high-strength concrete are frequently applied to steel reinforced concrete.Although some calculation formulae of steel reinforced concrete have been put forward by experts and scholars,there is no unified method to calculate the shear capacity of the steel reinforced concrete columns.A new shear capacity calculation method for the steel reinforced concrete columns is brought forward,which is based on the tensile strength of concrete and can be linked up with the shear capacity calculation of concrete column when the area of shape steel is down to zero.A parameter is also employed in the formula to take the interaction between concrete and shape steel into account.77 specimens are employed to validate the formula,the formula can well evaluate the shear capacity of the steel reinforced concrete.The formula can be applied to the steel reinforced concrete columns and can unify the shear capacity calculation of the steel reinforced concrete columns,which possess the strength level of concrete varied from C30 to C80, therefore it is named as an unified shear capacity formula of the steel reinforced concrete columns.

关 键 词：型钢混凝土 受剪承载力 柱 

分 类 号：TU398[建筑科学—结构工程] P315.97[天文地球—地震学]