Assembly type hollow slab girder
A hollow slab girder and assembled technology, which is applied in the direction of bridges, bridge parts, bridge construction, etc., can solve the problems affecting the lateral connection of slab girders, affecting the durability of slab girders, and the weak connection strength between concrete and slab girders, and achieves improved Convenience, reduce cracking phenomenon, increase the effect of lateral connection strength
Active Publication Date: 2021-08-10
天津市泽琪水泥构件有限公司
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Problems solved by technology
[0004] In view of the above-mentioned related technologies, the inventor believes that during the assembly process of the above-mentioned slab girders, the connection strength between the concrete and the slab girders in the hinge joints of each slab girder is weak, which affects the lateral connectivity of the slab girders and affects the durability of the slab girders. sexual flaw
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[0037] The following is attached Figure 1-4 The application is described in further detail.
[0038] The embodiment of the application discloses an assembled hollow slab girder. refer to figure 1 , an assembled hollow slab girder includes a slab girder body 1, the slab girder body 1 includes a hollow slab girder 11 with a beam cavity 117 and a cantilever 12, the hollow slab girder 11 is a cube-shaped structure, and the hollow slab girder 11 has two The surface of the side is inclined, and the bottom end is inclined to the direction close to the center of the hollow plate beam 11; the cantilever 12 is a cube-shaped structure, and there are two, respectively located on both sides of the hollow plate beam 11 length direction, the length of the cantilever 12 The direction is the same as the length direction of the hollow plate beam 11, and the cantilever 12 is integrally formed with the hollow plate beam 11, the bottom surface of the cantilever 12 is flush with the bottom surfa...
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The invention relates to an assembly type hollow slab girder, and belongs to the technical field of bridges. The slab girder comprises a slab girder body, the slab girder body comprises hollow slab girders and cantilevers, the cantilevers are located at two sides of the hollow slab girder direction and are integrally formed with the hollow slab girders, the cantilevers are located at positions close to the bottoms of the hollow slab girders, and upper inclined holes are pre-buried in the hollow slab girders; and the top ends of the upper inclined holes are located on the top surfaces of the hollow slab girders, the bottom ends of the upper inclined holes are located on the side surfaces of the hollow slab girders, lower inclined holes are reserved in the cantilevers, the top ends of the lower inclined holes are located on the top surfaces of the cantilevers, the bottom ends of the lower inclined holes are located on the bottom surfaces of the cantilevers, and the axis directions of the upper inclined holes and the lower inclined holes are the same. The plurality of upper inclined holes and the plurality of lower inclined holes are formed in the length direction of the hollow slab girders; and after the hollow slab girders are spliced, the upper inclined holes and the lower inclined holes of the adjacent hollow slab girders are coaxial, upper inclined pipes are embedded in the upper inclined holes, lower inclined pipes are embedded in the lower inclined holes, and the upper inclined pipes and the lower inclined pipes are internally in threaded connection with the same connecting rod. The slab girder has the effect of improving the transverse connection strength between the assembly type slab girders.
Description
technical field [0001] The present application relates to the technical field of bridges, in particular to an assembled hollow plate girder. Background technique [0002] The prefabricated hollow slab girder has the advantages of simple structure, convenient construction, small building height, easy to make inclined bridges and curved bridges, standardized design, factory-like mechanized construction, and small hoisting weight. It is widely used in small and medium-span bridges. In recent years, a large number of prefabricated concrete slab girders have been built in my country, and bridges with a span of less than 20m basically adopt this type of structure. At present, the horizontal connection between the slab girders of the prefabricated hollow slab girder bridge is mainly realized by post-cast concrete hinge joints. The boards work together to avoid the unfavorable stress phenomenon of the single board. [0003] At present, the existing Chinese patent with the notifica...
Claims
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IPC IPC(8): E01D2/00E01D19/06E01D19/08
CPCE01D2/00E01D19/067E01D19/086
Inventor 刘媛媛秦浩角
Owner 天津市泽琪水泥构件有限公司