摘要
两港公路大治河桥主桥为92 m+158 m+92 m预应力混凝土鱼脊连续梁,鱼脊立墙内采用大吨位钢束。为确保钢索张拉时的结构安全性,掌握大吨位预应力钢束作用下锚固区混凝土的受力情况和抗裂性能,进行大吨位预应力钢束锚固足尺试验研究,测试锚固区混凝土的应力分布状况和抗裂性能,为调整结构和设计方案奠定基础。
The main bridge of Lianggang Highway Dazhihe River Bridge is prestressed concrete fin-back continuous beam with 92 m +158 m+92 m,and the fin-back vertical wall has large tonnage steel strand inside.To ensure the structural safety when the cable tension,and to master the anchorage zone's force state and crack resistance under large tonnage prestressed steel strand,a fullscale experiment of large tonnage prestressed steel stand anchoring is researched.This experiment is to test anchorage zone's force state and crack resistance,which is helpful to provide foundations for the structure adjustment and the design plan.
出处
《中国市政工程》
2014年第1期33-35,92-93,共3页
China Municipal Engineering
关键词
鱼脊连续梁
鱼脊式
大吨位预应力
锚固区混凝土
抗裂性能
模型试验
fin-back continuous beam
fin-back
large tonnage prestress
concrete of anchorage zone
crack resistance performance
model test
作者简介
第一作者简介：杨明（1984--），男，工程师，研究生，主要从事桥梁承载能力评估和大型桥梁健康监测技术的研究。
