摘要
简支T梁变连续加固措施是多跨简支T梁桥加固改造、提高承载能力的行之有效的方法.但实践中发现该方法存在着一定的问题。以跨径为15.6m+15.6m的两跨简支T梁为例,通过理论分析计算表明,该方法在提高跨中抗弯承载能力的同时,却降低了中间支点处梁的抗剪承载能力。建议在采用此方法加固多跨简支T梁的同时应对中间支点梁的抗剪能力进行加固。
The reinforcing measures for simply-supported T-beam changing into continuous bean are effective ones for strengthening and transforming multi-span simply-supported T-beam bridge and increasing its bearing capacity. However, it has been found in practice that present method yields a definite problems. Taking simply-supported T-beam having both supports with 15.6 and 15.6m spans as example, theoretical analysis and calculation demonstrate that while heightening mid span＇s bearing strength, this method lowers the shear resistance of beam at intermediate support. Thus, when reinforcing the multi-span simply-supported T-beam by this method, enhancing the shear resistance of beam at intermediate support must be conducted yet.
出处
《辽宁交通科技》
2005年第7期62-64,共3页
Liaoning Communication Science and Technology
