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Bridge expansion joints refer to the requirements for meeting the deformation of the bridge deck.

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衡水凯祥
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HebeiHengshui City
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Product Details
Bridge expansion joints refer to expansion joints that are usually set between two beam ends, between the beam ends and the abutment, or at the hinged position of the bridge in order to meet the requirements for bridge deck deformation
It is required that the expansion joints can be freely expanded and contracted in both directions parallel and perpendicular to the axis of the bridge, and are strong and reliable. They should be smooth and free of sudden jumps and noises when vehicles are driving. They should be able to prevent rainwater, garbage and soil from infiltrating and blocking installation and inspection. , maintenance, and removal of dirt must be simple and convenient
Where expansion joints are set, the railings and bridge deck pavement must be disconnected.
According to performance and installation method, expansion joints can be divided into: Q type, QZ type, Q type, Q type, QMZ type! Among them, the QMZ model bridge expansion joint device is a bridge expansion joint device designed using hot-rolled integrally formed special-shaped steel. Q-type,
QZ-type, Q-type, and Q-type expansion joint devices are suitable For bridge joints with an expansion amount of less than mm, QMZ type, Q type,
Q type, Q type and other expansion joint devices are modular bridge expansion joints composed of side beams, center beams, cross beams and linkage mechanisms. Joint device, suitable for
Large and medium-span bridges with expansion mmmm.
Q-type bridge expansion device
Q-type bridge expansion device is a new type of bridge expansion joint adapted to the construction of highway bridges in my country Device. The Q-shaped bridge telescopic device adopts
the overall hot-rolled M special-shaped steel, which overcomes the characteristics of extruded special-shaped steel straightness and uneven collective size. The Q-shaped bridge telescopic device has comprehensive technical performance
The technical indicators have reached or exceeded the advanced level of similar international products. The structural type and special-shaped steel rolling are domestic firsts and will become the standard recommended product in the transportation industry.
Q-type bridge telescopic device product features: The building height is low. The height of the domestic hot-rolled integrally formed special-shaped steel is only mm. It has a simple structure and is easy to install. It has obvious reliability, comfort and durability. It is suitable for bridge deck pavements with a thickness equal to or greater than mm. Various bridges with a telescopic amount less than or equal to m
are not only convenient for the replacement of the telescopic devices of old bridges, but also can be used in the construction of new bridges.
The technical requirements for the middle rubber sealing strip of the Q-type bridge telescopic device: use chloroprene The telescopic device of rubber (R) sealing rubber belt is suitable for areas where the temperature is ℃ + ℃. The device using natural rubber (R) sealing rubber belt is suitable for areas where the temperature is ℃ + ℃.
Technical Requirements for Bridge Telescopic Devices
The rubber should be chloroprene (i.e. R, suitable for areas where the temperature is ℃+℃) or natural rubber (i.e. R, suitable for areas where the temperature is ℃+℃)< br/> . The quality requirements of the steel plates used in the expansion device comply with the regulations of B and B, and the special-shaped steel materials used (i.e. M or Q) meet the regulations of /.
Installation of the expansion joint device :In order to adapt to the needs of bridges where the direction of the river is not perpendicular to the driving route, the anchoring steel bars and displacement control boxes can be arranged diagonally
, that is, various telescopic devices with a telescopic amount of ~mm and modular telescopic MZ~mm The anchoring steel bars and displacement control boxes of the device
are welded horizontally and tilted to the special-shaped side beams

Hengshui Kaixiang Rubber Products Co., Ltd.
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Contact: Manager Hou
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Address: Beitian Village, Pengdu Township, Binhu New District, Hengshui, Hebei Province

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