Assembly type bamboo bridge with variable expansion coefficients

A prefabricated, bamboo bridge technology, applied in the direction of bridges, bridge parts, bridge construction, etc., can solve the problems of self-heavy, high maintenance cost, low section stiffness, etc., to reduce the weakening of bearing capacity, improve the lateral and longitudinal stiffness, Guaranteed effect of stiffness and ductility

A prefabricated, bamboo bridge technology, applied in the direction of bridges, bridge parts, bridge construction, etc., can solve the problems of self-heavy, high maintenance cost, low section stiffness, etc., to reduce the weakening of bearing capacity, improve the lateral and longitudinal stiffness, Guaranteed effect of stiffness and ductility

CN103452035AActive Publication Date: 2013-12-18HAIMEN THE YELLOW SEA ENTREPRENEURSHIP PARK SERVICE CO LTD
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  • Assembly type bamboo bridge with variable expansion coefficients
  • Assembly type bamboo bridge with variable expansion coefficients
  • Assembly type bamboo bridge with variable expansion coefficients

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Embodiment Construction

[0045] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described with reference to the accompanying drawings.

[0046] Such as Figure 1 to Figure 5 As shown, a prefabricated bamboo bridge comprises bamboo longitudinal girders 1, bamboo beams 2, bamboo panels 3, transverse prestressed bundles 4 and longitudinal prestressed bundles 16.

[0047] The top surface of the bamboo longitudinal beam 1 is provided with longitudinal beam protrusions 5 at intervals along the longitudinal direction of the bridge, the top surface of the bamboo beam 2 is provided with beam protrusions 6 at intervals along the transverse direction of the bridge, and the bamboo panel 3 includes prestressed tendons 7 and a plurality of horizontally stacked bridge deck sheets 8. The direction of its stacking arrangement is perpendicular to the direction of travel. The prestr...

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Abstract

The invention provides an assembly type bamboo bridge. The assembly type bamboo bridge comprises bamboo longitudinal beams (1), bamboo transverse beams (2), bamboo panels (3), transverse pre-stressing tendons (4) and longitudinal pre-stressing tendons (16), the outer surface of a bamboo is sequentially and uniformly coated with a layer of waterborne polyurethane resin, a layer of polyurethane resin, a layer of waterborne polyurethane resin and a layer of resorcinol formaldehyde resin, and the expansion coefficients of the four coating layers are sequentially lessened from the outer surface of the bamboo to outside. The assembly type bamboo bridge provided by the invention has the advantages that the structural strength is large, the ductility is good, a selected material is environment-friendly, standardization degree and assembling degree of structural members are high, the structural integrity is good, the advantages of the material can be fully expressed, and the requirements on normal use and durability of a bridge structure can be met.

Description

[0001] technical field [0002] The invention belongs to the technical field of bridge structures, in particular to an assembled bamboo bridge. Background technique [0003] Under the current background of developing low-carbon economy, green, ecological, environmental protection and low-carbon new building structural materials are the inevitable direction of civil engineering technology development. The biggest advantage of bamboo is environmental protection and renewable raw materials. The period of bamboo is generally 2 to 4 years (wood takes 20 years). According to incomplete statistics, the national bamboo forest area is about 3.54 million hectares (not including Taiwan Province), accounting for about 3% of the total forest area, with a stock volume of about 80 million tons and an annual output of more than 8 million tons of bamboo. my country's bamboo species and bamboo forest area account for about 1 / 4 of the world's total, and bamboo production accounts for about 1 / ...

Claims

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Application Information

Patent Timeline
18 Dec 2013
Publication
CN103452035A
IPC
E01D1/00; E01D19/12; B32B21/08; B32B27/40; B32B27/42
Inventors
赵炜; 王邵铭