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

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.