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The positioning angle of bridge expansion joint

author: Jianfeng Engineering from: 原创 date: 2017/8/31 18:00:00 hit: 13247 ℃
Tips: The positioning angle of expansion device installation must be based on the measured temperature, ca...

The positioning angle of expansion device installation must be based on the measured temperature, calculate the expansion amount to adjust the gap between the two positioning angle distance and positioning angle according to the bridge deck height will be welded to the steel reinforcement embedded, so the strict control of the gap distance. For the expansion joint spacing, hold a rather small tendency not big, is absolutely intolerable.

The positioning angle near the concrete in the construction of vibrator is difficult, dead and parts intensive steel, should strengthen the manual vibrating.

Technical requirements of bridge expansion joint:

1 the use of rubber (CR, -25, suitable for temperature in -+60 c c c c c c c c c c c c c c c c c) or the use of natural rubber (i.e. NR, suitable for temperature at -40 C -+60 C)

2 steel plate used in the expansion device, quality requirements in line with the provisions of GB374, GB012, the use of profiled steel, (that is, 16MN or Q345) in line with the provisions of JT/T1591.

filler joint

  

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