基于正常使用极限状态的独柱墩墩顶水平抗力研究  

Horizontal resistance force study based on serviceability limit states for single-column pier on the top

作　　者：杜柏松[1] 李明[1] 邹小勇 

机构地区：[1]重庆交通大学(桥梁)结构工程重点实验室,重庆400074 [2]金华市公路管理局,浙江金华321013

出　　处：《四川建筑科学研究》2016年第1期11-14,共4页Sichuan Building Science

基　　金：重庆交通大学(桥梁)结构工程重点实验室开放基金;国家自然科学基金(E080505)联合资助项目

摘　　要：基于正常使用极限状态下钢筋混凝土构件的裂缝宽度不超过规定限值的原则,计算出不同直径独柱墩底部不出现超限裂缝时墩顶能够承受的最大水平推力,然后综合考虑墩高、直径、配筋间距及配筋率等影响因素,推导出简化的实用公式,并通过实例验证了公式的有效性。Based on the serviceability limit states principle that the crack width of the concrete and the stress of the bar should not exceed the allowable limits for reinforced concrete structures,different horizontal resistance forces on the top were obtained for singlecolumn piers considering many factors including the height,diameter,the reinforcement distance and the reinforcement ratio. In terms of the numerical results and derivation,this paper proposed a practical formula to calculate the horizontal resistance forces involving the height,diameter,the reinforcement distance and the reinforcement ratio for single-column piers. Some examples were employed to validate the formula.

关 键 词：正常使用极限状态 水平抗力 裂缝宽度 独柱墩 配筋率 

分 类 号：U441[建筑科学—桥梁与隧道工程]