Prefabricated lane board

A prefabricated assembly and driveway technology, applied to pavements, roads, roads and other directions paved with prefabricated blocks, can solve the problems of insufficient rigidity of the bridge deck, high initial investment cost, easy deformation, etc., and achieve clear force, simple structure, The effect of novel materials

Pending Publication Date: 2020-05-08
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the defects existing in the existing technology, a prefabricated assembly type driveway slab is now provided to solve the shortcomings of the existing steel driveway slab pavement, bridge deck rigidity, easy deformation, and high initial investment cost, and at the same time inherit the steel driveway slab pavement , Bridge deck pavement fast, recyclable and turnover advantages, to achieve the goals of prefabricated light weight, reduce comprehensive cost, improve rigidity, improve durability, speed up construction period, reusable prefabricated driveway slabs, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Such as figure 1 As shown, the present invention firstly provides a prefabricated driveway slab 100 , including a prefabricated driveway slab body 10 , U-shaped steel bars 22 at joints, and cast-in-place materials 30 at joints. in:

[0047] Such as Figure 5 As shown, specifically, the prefabricated driveway slab includes the prefabricated driveway slab body 10, the pre-embedded steel bars 21 at the mortise edge of the prefabricated driveway slab body 10 (it can also be the steel bar configured for the prefabricated driveway slab, and some steel bars are reserved), U-shaped steel bars And the sleeve 23 that connects the U-shaped steel bar. During the actual application process, the prefabricated driveway slab body 10 pre-embeds steel bars 21 at the mortise edge, and the U-shaped steel bars arranged in the joint area of ​​the steel bar skeleton are connected to the embedded steel bars 21 through sleeves 23 . The anchorage length of the U-shaped steel bars connected to t...

Embodiment 2

[0050] On the basis of Embodiment 1, the U-shaped steel bars at the joints are replaced with straight steel bars.

[0051] After completing the above-mentioned implementation process, the following characteristics of the present invention should be reflected:

[0052] 1) Ultra-high-performance concrete has the characteristics of ultra-high strength, ultra-high toughness and high durability, but at present most of domestic research and products adopt high-temperature steam curing to realize the above-mentioned properties, and the construction process is complicated. The ultra-high-performance concrete used in the present invention Concrete can achieve the above properties only by normal temperature curing.

[0053] 2) Compared with the high-performance concrete (HPC), the cast-in-place material 30 in the joint area of ​​the present invention has significantly improved compressive strength of the fiber cement-based composite material, so the self-weight and cross-sectional size ...

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Abstract

The invention relates to a prefabricated lane board. The prefabricated lane board comprises a prefabricated lane plate body, a steel reinforcement framework and a joint area cast-in-place material. Aplurality of protrusions are arranged on the edges of the two sides of each prefabricated lane plate body respectively, a steel reinforcement framework extending out of the prefabricated lane plate body is arranged between every two adjacent protrusions, the adjacent prefabricated lane plate bodies are arranged oppositely at intervals, and the adjacent prefabricated lane plate bodies are integrated through the steel reinforcement frameworks and joint area cast-in-place materials. The joint area cast-in-place material is made of a fiber cement-based composite material, on the premise that the requirements for strength, waterproofness and the like are met, the joint area cast-in-place material can be dismantled when needing to be dismantled, and the prefabricated lane plate is recycled. A force transmission path is clear, factory-like and standardized production is easy, and on-site assembly is convenient and rapid; the prefabricated lane board has the characteristics of the small on-site pouring amount, high construction efficiency, convenience in later cyclic utilization, replacement and renewal and the like.

Description

technical field [0001] The invention belongs to the technical field of bridge engineering, and in particular relates to a prefabricated and assembled driveway slab suitable for roads and bridges. Background technique [0002] In recent years, prefabricated assembly technology has been vigorously promoted by the state and widely favored by building owners due to its high component quality, environmental friendliness, fast construction speed, and high economic benefits. For urban roads and bridges, prefabricated assembly technology can not only ensure the accuracy of component manufacturing, meet the requirements of bridge safety and durability, but also successfully reduce air pollution, noise pollution, traffic congestion and other problems caused by road and bridge construction. The impact of urban dwellers. Cast-in-place driveway slabs and bridge slabs have a large amount of on-site pouring, a long time for maintenance, and high maintenance climate conditions, which great...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C5/00E01C11/02E01D19/00
CPCE01C5/00E01C11/02E01D19/00
Inventor 王俊颜古金本
Owner TONGJI UNIV
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