A support structure and method for an thermal insulation outer guard plate at an expansion joint

Abstract

The invention discloses a supporting structure of a thermal-insulation outer protective board at an expansion joint and a method. The supporting structure comprises supporting parts, outer protective boards, limiting supports and sliding end guide rods, wherein one end of each supporting part is fixed on a casing at one end of the expansion joint, and the other end of each supporting part is fixedly connected with the corresponding sliding end guide rod; the limiting supports are fixed on the casing at the other end of the expansion joint, guide holes are formed in the limiting supports, and free ends of the sliding end guide rods are inserted into the guide holes; the outer protective boards are mounted on outer surfaces of the supporting parts. The supporting structure of the thermal-insulation outer protective board at the expansion joint comprises a fixing end and a sliding end, the fixing end plays supporting and fixing roles while the sliding end plays guiding and expansion allowance controlling roles, the thermal-insulation outer protective boards are mounted on the supporting structure and can have certain displacement along with the supporting structure, adjacent outer protective boards are connected through angle plates in a covering manner, disjoining of the outer protective boards is avoided, and vapor and rainwater are prevented from entering thermal-insulation layers.

Description

technical field [0001] The invention specifically relates to a support structure and method for an thermal insulation outer guard plate at an expansion joint. technical background [0002] The conventionally designed support structure of the thermal insulation outer shield at the expansion joint often adopts the method of installing a large area of ​​steel plate, and the expansion amount of the expansion outer shield support structure of the expansion joint is often considered too little. Since the expansion joints tend to expand axially and radially during the expansion process, although some outer guard plates at the expansion joints take into account the axial expansion and contraction of the expansion joints, the radial expansion and contraction of the expansion joints are often ignored. Contraction, due to the different expansion degrees of the adjacent expansion joints, the movement of the outer guards is different. At this time, the outer guards of the adjacent expans...

AI Technical Summary

Problems solved by technology

Since the expansion joints tend to expand axially and radially during the expansion process, although some outer guard plates at the expansion joints take into account the axial expansion and contraction of the expansion joints, the radial expansion and contraction of the expansion joints are often ignored. Contraction, due to the different expansion degrees of adjacent expansion joints, the movement of the outer guards is different. At this time, the outer guards of adjacent expansion joints will interact with each other, causing the outer guards at the expansion joints to be out of joint

After the outer shield is disconnected, it is easy to cause water vapor and rainwater to enter the insulation layer, which not only reduces the thermal insulation performance of the insulation material, but also affects the appearance of the insulation outer shield

[0003] In addition, because the support structure of the thermal insulation outer shield at the expansion joint is mostly made of large-area steel plates, it generally has disadvantages such as bulky materials, affecting expansion, wasting steel, and difficult construction.

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