摘要
斜交混凝土盖板涵是在铁路排洪上较多采用的一种涵洞形式,在增二线后,原结构不能承受新施加的荷载。针对此问题,提出对既有涵洞进行加固的方法。分别建立原模型和加固模型,模拟计算,分析对比计算结果,得出"托梁拔柱法",改善了原结构受力,降低了截面弯矩,保证了原结构的完整性,满足安全运营的要求。
The inclined concrete cover plate culvert is a culvert type more used in the drainage of railway.The original structure can not bear the new added loading after the line is added.Aiming at this problem,the article puts forward the reinforcing method to the existing culverts.The original model and the reinforcing model are separately set up to simulate the calculation and to analyze and compare the calculation results.The 'supporting-beam and removing-column method' is given to improve the original structural stress,to reduce the sectional bending moment,to guarantee the integration of the original structure,and to satisfy the requirement of the safe operation.
出处
《城市道桥与防洪》
2012年第2期47-49,7-8,共3页
Urban Roads Bridges & Flood Control
关键词
斜盖板涵
加固
托梁拔柱法
增二线
inclined cover plate culvert,reinforcement,supporting-beam and removing-column method,to add line
