对某铁路桥预应力T梁下挠的安全性研究

通过具体工程实例,从梁体外观检测、动静载试验、制梁工艺、力学参数等方面进行了分析,对某铁路桥下挠T梁的使用性能、安全性能进行了评估研究,分析了导致该预应力T梁下挠的原因,得出了该桥的质疑梁能满足安全运营要求的结论。

Research on the safety of pre-stress T beam down warping of one railway bridge

Through the specific project examples,it makes analysis from the external experiences of beam body,dynamic and dead load experiment,beam making technology and mechanical parameters,and makes the appraisal research to the utility and safety of the down warping T beam of one railway bridge,analyses the reasons of inducing the pre-stress T beam down warping,and deduces the conclusion that the oppugned beam of the bridge can meet the needs of safe operation.