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Fastening joint of assembly type reinforced concrete combination bridge and manufacturing method of fastening joint

A combined bridge and prefabricated technology, applied in the field of steel structure bridges, can solve the problems such as the inability of bonding materials and steel beams to achieve compaction and leakage, and achieve the effects of saving labor costs, speeding up construction speed, and high construction efficiency.

Inactive Publication Date: 2019-08-06
ZHEJIANG INST OF COMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, the country is promoting prefabricated buildings. Steel-concrete composite beam bridges can also be installed on-site using prefabricated methods. However, when the concrete bridge deck is filled with anchor concrete after installation, the bonding material and steel beams cannot be densely packed, which will cause grout leakage.

Method used

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  • Fastening joint of assembly type reinforced concrete combination bridge and manufacturing method of fastening joint
  • Fastening joint of assembly type reinforced concrete combination bridge and manufacturing method of fastening joint
  • Fastening joint of assembly type reinforced concrete combination bridge and manufacturing method of fastening joint

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Effect test

Embodiment 1

[0035] Example 1: As shown in Figures 1-7, the fastening nodes of a prefabricated steel-concrete composite bridge include: steel girder 1, precast concrete slab 2, shear member 3, fastener 4 and bonding material 5. Wherein the prefabricated concrete slab includes a concrete slab body 26, a shear member hole 21, a fastener notch 22, an embedded fastener positioning plate 23, a positioning plate oblong hole 24 and a sleeve 25; the fastener 4 includes a tight Firmware notches 22, nuts 41, hexagonal socket screws 42 and gaskets 43; the shear member 3 is welded on the steel beam 1 at the position corresponding to the shear member hole 21, and is welded on the steel beams corresponding to the four corners of the precast concrete slab Provide oblong holes 11 on the beam. When pouring concrete prefabricated slabs, pre-embed fastening positioning plates 23 and sleeves 25 at the four corners of the concrete slab body, open oblong holes 24 on the positioning plates 23, and weld the sleeve...

Embodiment 2

[0037] Embodiment 2: A method for manufacturing a fastening structure of a prefabricated steel-concrete composite bridge, comprising the following steps:

[0038] Step 1: Arrange the position and quantity of shear members on the steel beam according to the calculation results;

[0039] Step 2: Determine the size of the precast concrete slab according to the transportation conditions and on-site hoisting conditions;

[0040] Step 3: Determine the location of the fasteners according to the size of the precast concrete slab, and open long round holes at the corresponding positions on the steel beam to replace the shear members;

[0041] Step 4: Before pouring the precast concrete slab, pre-embed fastening positioning plates and sleeves at the four corners of the concrete slab body, open long round holes on the positioning plates, and weld the sleeves between the two fastener positioning plates. And reserve the notch for fasteners to meet the installation of fasteners;

[0042] ...

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Abstract

The invention discloses a fastening joint of an assembly type reinforced concrete combination bridge and a manufacturing method of the fastening joint. The fastening joint comprises a steel beam, a prefabricated concrete plate, shear-resistant pieces, fastening pieces and a bonding material. The prefabricated concrete plate comprises a concrete plate body, shear-resistant piece holes, fastener notches, pre-embedded fastener positioning plates, positioning plate long circular holes and sleeves. The positions, corresponding to the shear-resistant piece holes of the prefabricated concrete plate,of the shear-resistant pieces are welded to the steel beam. Long circular holes are formed in the steel beam corresponding to the four corners of the prefabricated concrete plate. The pre-embedded fastener positioning plates and sleeves are arranged in the four corners of the concrete plate body. The positioning plates are provided with long circular holes. The sleeves are welded between the two fastener positioning plates. After a bonding material layer is arranged around the shear-resistant pieces, the prefabricated concrete plate is placed at the corresponding position, and fasteners are used to penetrate through the prefabricated concrete plate and the steel beam to compact the bonding material. Finally, high-strength concrete is poured from the shear-resistant pieces and the fastenernotches. Thus, quick installation is achieved, the phenomenon of slurry leakage is avoided, materials are saved and labor cost is reduced.

Description

technical field [0001] The invention belongs to the field of steel structure bridges, and in particular relates to a fastening node of an assembled steel-concrete composite bridge and a manufacturing method thereof. Background technique [0002] Small and medium-span concrete structure bridges are economical and have played a huge role in bridge construction in our country. However, one out of every four small and medium-span bridges in my country is a bridge with varying degrees of disease. These diseased bridges need to be repaired or reconstructed. The cost of manpower, financial resources and time for bridge reconstruction is huge. After investigation, it is found that the substructure of these diseased bridges can often continue to bear the load, and only the superstructure of the diseased bridge needs to be replaced, which can greatly relieve the pressure of modern urban traffic and save costs. [0003] With the development of my country's industrial technology, the o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/12E01D21/00E01D101/26E01D101/30
CPCE01D19/125E01D21/00E01D2101/26E01D2101/30
Inventor 赵伟
Owner ZHEJIANG INST OF COMM
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