条形荷载下高强度混凝土局部承压试验研究  

The Local Bearing Strength of the High Strength Concrete under the Stripe Load

作　　者：李子青[1,2] 李子春[1,2] 

机构地区：[1]西安公路交通大学公路系 [2]铁道部科学研究院

出　　处：《西安公路交通大学学报》1998年第3期29-33,共5页Journal of Xi'an Highway University

摘　　要：重点研究在条形荷载作用下承压面积比及偏心距等因素对高强混凝土试件局部承压受力性能的影响。根据楔形体模型及极限平衡原理推导出理论计算公式并建立了实用的计算公式，计算结果与实验符合良好。对于偏心受压，依据试验结果确定了偏心距与局压强度提高系数β之间的线性关系以及Ａｄ的取值方法。The paper is focused on the study of the influence of the factors such as the bearing area ratio and its eccentricity act on the local bearing strength of the high strength concrete. Theoretical formulae are derived from using the cuneafe model and principle of limit equilibrium, and consequently, the equations for practical computation are established. For the case of eccetric loading, a linear relationship between the eccentricity e i and the local bearing strength factor β as well as the simplified method calculating A d are determined.

关 键 词：高强度混凝土 局部承压强度 面积比 

分 类 号：TU528.31[建筑科学—建筑技术科学]