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石家庄江西省西南部桥梁支座更换的重要意义有哪些?

浏览:890 发表时间:2019-03-11

江西省西南部桥梁支座更换的重要意义有哪些?江西省西南部地区多山地,在修筑国道及高铁中为了能够节约路程,多采用桥隧技术穿越山体、沟壑。320国道部分段在此区域通过,A桥梁是本路段内最大的桥梁,自2003年建成竣工后,已经平稳运行13年。由于常年的巨大交通流量,桥梁支座承载能力面临巨大压力。经检测,为了保证交通安全,其桥梁支座需要更换。同样为了对交通影响降到最小,初步决定在不中断交通的条件下进行桥梁支座更换。该地气候潮湿,夏季多雨高温,冬季最低气温零下8。桥梁是连接两段隧道,现浇箱梁公路桥。A桥梁是一箱两室,分为7段,全程长150.6m。

江西省西南部桥梁支座更换的重要意义有哪些?

自2015年,养护工人巡查中发现桥梁橡胶支座存在严重的剪切损坏,其内部钢板直接裸露在外面,并且有严重的腐蚀生锈现象。请专家对设计图纸进行核查,多位专家一致确定支座受到严重剪切损坏的主要原因是设计缺陷造成。于是专门成立专家设计组,对设计单位提供的数据再次进行计算设计,提出新的桥梁橡胶支座生产参数。

There are many mountainous areas in the southwest of Jiangxi Province. In order to save distance in the construction of national highways and high-speed railways, bridges and tunnels are often used to cross mountains and ravines. Part of 320 National Highway passes through this area. Bridge A is the largest bridge in this section. It has been running smoothly for 13 years since it was completed in 2003. Because of the huge traffic flow all the year round, the bearing capacity of bridge bearings is under great pressure. After testing, in order to ensure traffic safety, its bridge bearings need to be replaced. Similarly, in order to minimize the traffic impact, it is preliminarily decided to replace the bridge bearings without interrupting traffic. The climate is humid, rainy and hot in summer, and the lowest temperature in winter is minus 8. The bridge is a cast-in-place box girder highway bridge connecting two tunnels. A Bridge is a box of two rooms, divided into seven sections, the whole length of 150.6m.

江西省西南部桥梁支座更换的重要意义有哪些?

Since 2015, maintenance workers have found serious shear damage in bridge rubber bearings, the internal steel plate is directly exposed to the outside, and there is serious corrosion and rust phenomenon. Experts are invited to check the design drawings. Many experts unanimously confirm that the main cause of severe shear damage to the bearing is the design defects. So an expert design group was set up specially to calculate and design the data provided by the design unit again and put forward new production parameters of the support.


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