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Modular box-type beam-slab structure and bridge erection method based on box-type beam-slab structure

A box-type plate and beam structure technology, applied in the field of steel bridge structure, can solve the problems of many components, restricting development, and low efficiency of Bailey Bridge, and achieve the effect of fast erection

Inactive Publication Date: 2017-04-26
CHINA HARZONE IND CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the many components of the Bailey Bridge, the slow construction speed and low efficiency of relying on manpower erection restrict its further development

Method used

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  • Modular box-type beam-slab structure and bridge erection method based on box-type beam-slab structure
  • Modular box-type beam-slab structure and bridge erection method based on box-type beam-slab structure
  • Modular box-type beam-slab structure and bridge erection method based on box-type beam-slab structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Embodiment 1: Referring to the accompanying drawings, a modular box-type plate girder structure includes: a main girder, a beam 5, and a longitudinal girder 6 with a bridge deck;

[0022] The main girder is a box girder section, with a set of lugs 11, 21 for connecting pins to other girders at the lower part of each end, and a plurality of stiffening webs 12, 22 on both sides, and the stiffening webs 12, 22 are provided with bolt holes , used to connect the crossbeam 5 by friction-type high-strength bolts, and the main beam is manufactured by welding;

[0023] The crossbeam 5 is a rolled channel steel, with bolt holes matching the bolt holes on the stiffening webs 12 and 22 at both ends of the elevation, and bolt holes for connecting the longitudinal beam 6 with the bridge deck on the top surface;

[0024] The longitudinal girder 6 with the bridge deck includes: a steel bridge deck and a plurality of I-beams 61 fixedly connected under the steel bridge deck. The I-beams ...

Embodiment 2

[0026] Embodiment 2: On the basis of the modular box-shaped plate girder structure of Embodiment 1, add: railing column 3, railing crosspiece 4, railing column 7 with crossbeam, sidewalk bridge deck 8, sidewalk railing 9;

[0027] The railing column 3 is a rolled section steel, and its lower part is provided with bolt holes matching the bolt holes on the stiffening webs 12, 22 for connecting the main beam; its inner side is provided with bolt holes for connecting the railing crosspiece 4;

[0028] The railing crosspiece 4 is a rolled section steel, which is provided with bolt holes for connecting the railing column 3;

[0029] The railing column 7 with crossbeam is a rolled section steel, and its lower part is provided with bolt holes matching the bolt holes on the stiffening webs 12, 22 for connecting the main beam; its inner side is provided with bolts for connecting the railing crosspiece 4 Hole, the horizontal crossbeam 71 that its outer side is fixedly connected triangula...

Embodiment 3

[0032] Embodiment 3: the bridge body erection method based on the modular box-type slab girder structure, it uses the modular box-type slab girder structure as described in embodiment 1, comprises the following steps:

[0033] A. Select an appropriate number of short-span standard section main girders 1 and long-span standard section main girders 2 according to the length of the bridge body and the number of lanes to be erected, and connect them into several main girder combinations through pins; Figure 5 As shown, when erecting a single lane, two main girders are required; Figure 6 As shown, the combination of three main girders is required when erecting a double lane; Figure 7 As shown, when erecting three lanes, four main girders are required;

[0034] B. Place the connected main girder combination on the bridge support that has been installed by means of crane hoisting or horizontal push;

[0035] C. Between the adjacent main girder combinations in place, use friction...

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Abstract

The invention belongs to the technical field of bridge engineering, and particularly relates to a steel bridge structure. The technical solution of a modular box-type beam-slab structure is that the modular box-type beam-slab structure comprises main beams, cross beams (5) and longitudinal beams (6) with deck slabs; all structural members in the invention are manufactured in the standardized form, and transported by trucks quickly and expediently; all connections are made with pins or bolts, with no pneumatic or electric tools required, and all tools are operated manually without site welding. According to the limitation of site conditions, the modular box-type beam-slab structure can be lifted and installed by a guide beam erector with a crane, with no temporary support required, and the erection speed is high. The modular box-type beam-slab structure can be used for emergency bridges, temporary bridges, overpasses, permanent bridges, etc., and especially has excellent performance in emergency relief.

Description

technical field [0001] The invention belongs to the technical field of bridge engineering, in particular to a steel bridge structure. Background technique [0002] As the most outstanding representative of prefabricated road steel bridges, Bailey Bridge is widely known because of its extensive use by the British and American troops in World War II, which led to the development of prefabricated road steel bridges around the world. my country also developed the ZB-200 prefabricated highway steel bridge in 2003, which has played a certain role in emergency disaster relief, rush repair and rush construction. However, due to the many components of the Bailey Bridge, the slow construction speed and low efficiency of relying on manpower erection restrict its further development. Contents of the invention [0003] The purpose of the present invention is to provide a modular box-type slab girder structure with few types of components and fast erection speed, which can be used for ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D21/00E01D19/00
CPCE01D21/00E01D19/00
Inventor 李忠涛易良华陶闯
Owner CHINA HARZONE IND CORP
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