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预应力混凝土T型梁横向加固试验研究
引用本文:孙国钧,夏禾,张楠.预应力混凝土T型梁横向加固试验研究[J].北京交通大学学报(自然科学版),2002,26(4):9-11.
作者姓名:孙国钧  夏禾  张楠
作者单位:北方交通大学,土木建筑工程学院,北京,100044
摘    要:既有线跨度33.5m预应力混凝土T型梁横向联结薄弱,梁体横向振幅超出桥梁检规限值,整体工作性能差,影响行车安全,不适应提速对桥梁的要求.本文实施一种将主梁中心距由1.8 m增大为2.0 m,将桥面板连接起来,并在桥面板下增设32处加强隔板的加固方案,通过测试验证加固效果显著.

关 键 词:混凝土T型梁  横向加固  试验研究
文章编号:1000-1506(2002)04-0009-03
修稿时间:2001年7月6日

Experiment Study on Lateral Reinforcement of PC T-Beams
SUN Guo jun,XIA He,ZHANG Nan.Experiment Study on Lateral Reinforcement of PC T-Beams[J].JOURNAL OF BEIJING JIAOTONG UNIVERSITY,2002,26(4):9-11.
Authors:SUN Guo jun  XIA He  ZHANG Nan
Abstract:The weakness of the lateral bracing of existing 33.5 m PC T beams results in their big lateral amplitudes which exceeds the limits of the Bridge Examination Code of China, and thus affects the running safety of trains. In this paper,a scheme was applied, by widening the center to center distance of the beams from 1.8 m to 2.0 m and adding 32 reinforcing diaphragms on the beams in order to strengthen the stiffness of the beams. An experiment has been performed to prove the effectiveness of the scheme.
Keywords:T  PC beam  lateral reinforcement  experiment study
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