Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Rigid connecting piece steel bridge deck pavement structure and pavement method

A technology for rigid connectors and bridge deck paving, which is used in bridges, bridge parts, bridge construction, etc., and can solve the problem of difficulty in penetrating steel bars for slotted steel plate connectors, poor anti-pulling and peeling resistance of pavement layers, and poor pavement resistance. Layer vertical and horizontal cracking or peeling, etc., to achieve the effect of improving pavement cracking, facilitating mechanized construction, and improving pullout bearing capacity and peeling resistance.

Inactive Publication Date: 2017-06-20
NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
View PDF7 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the rigidity of the welding stud itself is relatively large, resulting in a large shear force on the welding stud. How to reduce the shear force value of the welding stud at a local position has become one of the difficulties in design
[0005] Slotted steel plate connectors have problems such as difficulty in penetrating steel bars and complicated construction
At the same time, the above-mentioned existing steel bridge deck needs to arrange ordinary steel bars, the manufacturing process is relatively complicated, and there is a problem of local stress concentration; at the same time, the existing construction method also causes many pavement diseases and problems, mainly including: 1. The load of automobiles, etc. Excessive weight will cause excessive tensile strain on the pavement surface, which will easily lead to longitudinal and transverse cracking or peeling of the pavement layer; 2. The durability of the pavement layer is insufficient. Under repeated loads such as automobiles, the mixture of the pavement layer is easy to creep 3. Due to the limited number of welding studs, the shear bearing capacity of the connecting piece is small and cannot bear the relative displacement between the steel and concrete, and fatigue damage is prone to occur at the root, and the welding studs The nearby concrete is easy to be crushed and damaged in the early stage of stress; 4. The steel plate connector with holes has a large bearing capacity, but it needs to wear steel bars in the hole, which is inconvenient for construction; 5. The pavement layer has poor pull-out and peel-off resistance. Under the action of wheel pressure, it is prone to early local damage

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Rigid connecting piece steel bridge deck pavement structure and pavement method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] like figure 1 The steel bridge deck pavement structure with rigid connectors shown includes a roof 3, and a longitudinal web 2 and a transverse diaphragm 1 are connected to the bottom surface of the roof 3. The longitudinal web 2 and the transverse diaphragm 1 are connected to the bottom surface of the roof 3. Orthogonally connected, and the longitudinal web and diaphragm are also connected orthogonally. The top plate 3, the longitudinal web 2 and the transverse diaphragm 1 form a steel beam with high strength and strong compression resistance.

[0026] A bridge deck pavement is laid on the top surface of the top plate 3, wherein the top surface of the top plate 3 is provided with a connector located in the bridge deck pavement.

[0027] The connecting piece includes a steel bar 6 and at least one steel plate 4 vertically placed on the top surface of the top plate 3, wherein the welding between the steel plate 4 and the top plate 3 is single-side welding or double-side...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a rigid connecting piece steel bridge deck pavement structure and a pavement method. The pavement structure comprises a top plate, longitudinal webs and transverse partition plates, wherein the longitudinal webs and the transverse partition plates are in orthogonal connection with the bottom surface of the top plate; the top surface of the top plate is paved with a bridge deck pavement layer and provided with connecting pieces located in the bridge deck pavement layer; and the connecting pieces are easy to construct and high in shear bearing capacity, uplift bearing capacity and anti-stripping capacity. According to the pavement method, the connecting pieces composed of steel plates, left trough plates and right trough plates are adopted, construction is convenient and quick, operation is easy and convenient, an integral pavement layer formed by paving a steel fiber reinforced concrete layer and an asphalt concrete layer is formed, the tensile capacity is improved, and the thickness is increased; and the tensile stress and strain resistance of the surface of the pavement layer can be effectively reduced, and thus, the cracking problem of the surface of the pavement layer can be effectively solved.

Description

technical field [0001] The invention relates to the technical field of bridge construction engineering, in particular to a rigid connector steel bridge deck pavement structure and a pavement method. Background technique [0002] At present, in long-span bridges, orthotropic steel decks are gradually being widely used due to their light component weight, convenient transportation and erection, and short construction period. Anisotropic steel bridge deck, that is, longitudinal webs are welded on the inner side of the steel deck roof, and these longitudinal ribs are orthogonal to the transverse diaphragm, thus forming an orthogonal structural heterogeneous slab together with the steel bridge deck. [0003] The bridge deck pavement layer is generally laid on the orthotropic steel bridge deck with thin-layer reinforced concrete and asphalt concrete. To fix the reinforced concrete bridge deck, welding studs, perforated steel plates and other connectors are usually arranged. In th...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/12
CPCE01D19/125
Inventor 刘世明陈平祥朱洁汪润新李尚宇李东峰蒋军峰侯青峰陈震李晓克
Owner NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products