基于ABAQUS群锚锚栓锚固效果影响模拟分析  

Simulation analysis of anchorage effect based on ABAQUS group anchorage

作　　者：聂良鹏 李正垣 NIE Liangpeng;LI Zhengyuan(YunnanTongqu Engineering Testing Co.,Ltd.,Kunming 650024,China)

机构地区：[1]云南通衢工程检测有限公司,云南昆明650024

出　　处：《四川建材》2023年第5期167-168,185,共3页Sichuan Building Materials

基　　金：云南交通厅立项项目:基于微孔应力释放法的PC桥梁钢束有效预应力检测技术研究(云交科教便[2020]91号)。

摘　　要：旧桥体外预应力加固是一种重要的桥梁加固方式,随着体外预应力在加固方面的广泛应用,为了能够较为准确地确保其加固效果,其锚固端锚固系统锚栓受力分析显得尤为重要。通过ABAQUS/Explict建立3D锚栓锚固系统模型,并通过对不同有效锚固深度及锚栓间距下锚栓应力结果进行分析,从而可得出较为合理的有效锚固深度及锚栓间距,研究方法与结果可对工程实践提供一定的指导与借鉴。External prestressing reinforcement of old bridges is an important reinforcement method.With the extensive application of external prestressing in reinforcement,in order to ensure the reinforcement effect accurately,the stress analysis of the anchor bolt of the anchorage system at the anchorage end is particularly important.In this paper,the 3D anchor system model is established by ABAQUS/Explict,and the reasonable effective anchor depth and anchor spacing can be obtained by analyzing the anchor stress results under different effective anchor depths and anchor spacing.The research method and results can provide some guidance and reference for engineering practice.

关 键 词：ABAQUS 群锚锚栓 有效锚固深度 锚栓间距 

分 类 号：U443.35[建筑科学—桥梁与隧道工程]