A vertical prestressed steel-concrete composite rigid frame bridge and its construction method
A vertical prestressing and concrete technology, which is applied in the direction of erecting/assembling bridges, bridges, bridge materials, etc., can solve the problems of occupying space, and achieve the effects of simplifying construction, saving costs, and saving space
Inactive Publication Date: 2016-02-24
FUZHOU UNIV
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Problems solved by technology
However, the ordinary prestressed steel-concrete composite steel bridge is to place the prepared prestressed steel-concrete beams on the piers, and then connect them as a whole to form a steel bridge, which requires space to apply pre-bending stress to the steel beams and pour concrete , also requires heavy equipment to place the steel-concrete beams on the piers and connect them integrally with the piers
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[0016] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below through specific embodiments and related drawings.
[0017] Such as Figure 1~3 As shown, a vertical prestressed steel-concrete composite rigid-frame bridge comprises two piers 1, and a steel girder 4 above it is horizontally arranged between the two piers 1, and a Support 6, the pier 1 is pre-embedded with an anchor screw 2 arranged vertically and protruding upwards, the upper end of the anchor screw 2 passes through the bolt hole at the end of the steel beam 4 and is located on the steel beam 4 The anchor nut 5 on the side is locked and fixed, which simplifies the construction and saves space, so as to apply its vertical pre-tightening force, thereby generating pre-bending stress on the steel beam 4. Wherein the support 6 is located on the inner side of the anchor screw 2, that is, the side where the bridge p...
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The invention relates to a vertical prestressed steel-concrete composite rigid frame bridge which comprises two bridge piers. A steel beam which is positioned above the two bridge piers is transversely arranged between the two bridge piers, supports are arranged among the steel beam and the bridge piers, foundation screws which are vertically arranged and upwardly extend are buried in the bridge piers, the upper ends of the foundation screws penetrate bolt holes in the ends of the steel beam and then are fixedly locked by foundation nuts, the foundation nuts are positioned on the upper side of the steel beam, the supports are positioned on the inner sides of the foundation screws, and concrete is poured on the steel beam and joints of the steel beam and the bridge piers, so that the steel beam and the bridge piers can be integrally connected with one another. The invention further provides a method for constructing the vertical prestressed steel-concrete composite rigid frame bridge. The vertical prestressed steel-concrete composite rigid frame bridge and the method have the advantages that construction can be simplified, spaces can be saved, and the method is favorable for constructing the vertical prestressed steel-concrete composite rigid frame bridge in harsh environments.
Description
technical field [0001] The invention relates to a vertical prestressed steel-concrete composite rigid frame bridge and a construction method thereof, belonging to the field of bridges. Background technique [0002] Since the integral abutment bridge cancels the expansion joints, the maintenance cost of the bridge is reduced, and the driving comfort is improved, so it has been widely used in the world. Reinforced concrete rigid frame bridge is a kind of integral abutment bridge, which can save cost, improve driving quality and have good seismic performance. [0003] Due to the heavy weight of the superstructure of ordinary reinforced concrete rigid-frame bridges, economic benefits can only be guaranteed if the span length is within 15 meters. The prestressed steel-concrete composite rigid-frame bridge can increase the span length while ensuring economic benefits. This type of bridge is a steel-concrete structure that takes full advantage of the properties of the two materia...
Claims
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IPC IPC(8): E01D1/00E01D21/00E01D101/28
Inventor 庄一舟王胜智陈云韩裕添陈斌
Owner FUZHOU UNIV