A Concrete Structure in the Transition Area of Bridge Expansion Joints with Long Service Life
A technology for concrete structures and expansion joints, applied in the direction of bridges, bridge parts, bridge construction, etc., can solve the problem of short service life, and achieve the effect of reducing materials, ensuring practicability, and improving stiffness and stability
Inactive Publication Date: 2018-08-17
李巍 +13
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[0004] Aiming at the deficiencies of the prior art, the present invention provides a bridge expansion joint transition zone concrete structure with long service life, which has the advantage of long service life and solves the problem of short service life of existing equipment
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[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0023] see Figure 1-2 , a bridge expansion joint transition zone concrete structure with long service life, comprising a base 1, the upper surface of the base 1 is fixedly connected with a lightweight concrete layer 2, and by setting the lightweight concrete layer 2, the lightweight concrete layer 2 is made of light concrete material , the dead weight is low, the materials used are reduced, and the rigidity and stability of the structure are improved due to t...
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The invention relates to the technical field of bridge construction equipment, and discloses a bridge expansive joint transition area concrete structure with long service life. The bridge expansive joint transition area concrete structure comprises a base, the upper surface of the base is fixedly connected to a lightweight concrete layer, one side of the inside of the lightweight concrete layer is fixedly connected to lower fixing blocks, the top ends of the lower fixing blocks are fixedly connected to lower connecting blocks, the top ends of the lower connecting blocks are fixedly connected to transverse dragging steel belts, the middles of the transverse dragging steel belts are fixedly connected to light steel center pillars, fixed bolts are fixedly connected between the light steel center pillars and the transverse dragging steel belts, and the top ends of the transverse dragging steel belts are fixedly connected to upper connecting blocks which are located on the other side of the inside of the lightweight concrete layer. According to the bridge expansive joint transition area concrete structure with the long service life, a primary bearing support and secondary bearing supports are arranged, the primary bearing support is fixedly connected to the inside of a connecting groove through dowels, the secondary bearing supports are fixedly connected to the inside of a cement mortar adhesive coating layer, and thus the service life when a reinforcing bar net-surface layer is in use is guaranteed.
Description
technical field [0001] The invention relates to the technical field of bridge construction equipment, in particular to a concrete structure in the bridge expansion joint transition zone with long service life. Background technique [0002] According to the survey and statistical analysis of the damage status of bridge expansion joints by relevant departments, it is found that almost all the expansion joints with severe damage in the common expansion joint problems are related to caulking and concrete, mainly caused by porosity, hardening, cracking, relaxation or tearing, and concrete peeling or cracking. The causes of these problems include traffic load, damage to snow plows, weather, poor quality installations, inferior materials and improper selection of expansion joint types. Among them, the poor quality of concrete in the transition zone is the most direct cause, and it is also the first disease of expansion joints. . Defects in the transition zone concrete will lead t...
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IPC IPC(8): E01D19/06
CPCE01D19/06
Inventor 李巍桑继兵李春艳王永辉李伟李跃张欢欢赵志强李阳宁建阳张硕朱博朱光玺郑华
Owner 李巍