钢筋混凝土桥墩考虑地震反应与能力相互作用的抗震设计方法

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振动与冲击 ›› 2014, Vol. 33 ›› Issue (18) : 14-20.

论文

钢筋混凝土桥墩考虑地震反应与能力相互作用的抗震设计方法

郭进，王君杰，董正方

作者信息 +

SEISMIC DESIGN METHOD FOR BRIDGE PIER CONSIDERING INTERACTION OF REACTION AND ABILITY

Guo Jin, WANG Jun-jie, Dong Zheng-fang

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文章历史 +

摘要

指出了钢筋混凝土桥墩数值模拟中考虑地震反应与能力相互作用的必要性，初步建立了其设计流程，提出了有限元程序的实现流程。基于Opensees2.0.0版本源代码二次开发了一个新的塑性铰单元，数值结果表明，本文方法能够实现桥墩骨架曲线的负刚度段，从而避免一般有限元计算中负刚度段不收敛的困难；与试验结果的比较可以发现，本文方法能够较好地模拟桥墩在不同加载模式下的试验现象。这说明本文方法能够实时地反映构件的状态，并根据反应对其能力进行修正，从而考虑反应与能力的相互作用。

Abstract

The necessity of considering the interaction between seismic response and ability for RC bridge pier is pointed out. The design process is initially established. The realization process of the finite element program is proposed. A new plastic-hinge element is developed based on the source code of Opensees of version 2.0.0. The numerical results show that the method in this paper can implement component skeleton curve with negative stiffness, so as to avoid the non-convergence difficulty caused by negative stiffness curve in the general finite element method. According to the comparison between experimental and numerical results, it can be found that the method shown in this paper can be used to simulate experimental phenomena under different loading patterns. These indicate that the method can real-time reflect the member state, and modify its ability according to response of the member. This is the way of considering the interaction between response and ability.

导出引用

&#;郭进;王君杰;董正方. 钢筋混凝土桥墩考虑地震反应与能力相互作用的抗震设计方法 [J]. 振动与冲击, 2014, 33(18): 14-20

Guo Jin;WANG Jun-jie;Dong Zheng-fang. SEISMIC DESIGN METHOD FOR BRIDGE PIER CONSIDERING INTERACTION OF REACTION AND ABILITY[J]. Journal of Vibration and Shock, 2014, 33(18): 14-20