Prefabricated section type concrete bridge joint structure and butt joint method thereof

A concrete, segmental technology, used in bridges, bridge parts, bridge construction, etc., can solve problems such as damage, and achieve the effects of stable quality, strong durability and simple construction process

Inactive Publication Date: 2014-06-04
SOUTH CHINA UNIV OF TECH
View PDF6 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the transportation, construction and use of prefabricated b

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
  • Prefabricated section type concrete bridge joint structure and butt joint method thereof
  • Prefabricated section type concrete bridge joint structure and butt joint method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0023] Such as figure 1 , 2 shown. The prefabricated segmental concrete bridge joint structure of the present invention comprises a prefabricated beam section 5, a steel shear key 2, and a dome 4, the end face of the prefabricated beam section 5 is provided with a hole 1, and the steel shear key 2 is set In the hole 1, there is a gap between the steel shear key 2 and the hole 1, and a sealing material 3 is filled in the gap.

[0024] The round cover 4 is sleeved on the steel shear key 2, and the round cover 4 has a crack line 4-1 along the radial direction, and there is a crack line 4-1 at the intersection line of the outer circle of the round cover 4. The pouring hole 4-2 for pouring the sealing material.

[0025] The circumferential surface of the steel shear key 2 is provided with grooves.

[0026] The gap between the outer peripheral surface of the steel shear key 2 and the inner peripheral surface of the hole 1 is 2cm-3cm.

[0027] The steel shear key 2 is a circular...

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 prefabricated section type concrete bridge joint structure which comprises a prefabricated beam section, steel shear keys and circular covers. Holes are formed in the end face of the prefabricated beam section, the steel shear keys are disposed in the holes, a gap is reserved between each steel shear key and the corresponding hole, each gap is filled with seal material, each circular cover sleeves the corresponding steel shear key, each circular cover is provided with a crack line along the radius direction, and a pouring hole for pouring the seal material is formed at the intersection of each crack line and the excircle of the corresponding circular cover. The prefabricated section type concrete bridge joint structure has the advantages that the high-strength stainless steel circular steel is used as the steel shear keys, the steel shear keys are adhered in the holes of prefabricated beam section, and the size of the steel shear keys can be reduced by the high strength of the steel shear key materials; the prefabricated section type concrete bridge joint structure is simple in construction, stable in quality, high in durability, and long in service life, safety performance of existing bridging structures is increased, and the problem that the existing prefabricated beam sections are often damaged during transportation, construction and application due to the fact that the shear keys are made of plain concrete is well solved.

Description

technical field [0001] The invention relates to the field of bridge construction, in particular to a prefabricated segmental concrete bridge joint structure and a butt joint method thereof. Background technique [0002] The significant structural difference between prefabricated segmental concrete bridges and conventional bridges is the joints between segments. Because the main girder is discontinuous in the joint area, the ordinary steel bars that can transmit part of the normal stress and shear stress are disconnected here, and only the shear keys and prestressed steel tendons set at the joints are used to connect each segment, and a single The length of the segments is short, and there are many joints in each span, so the joints between the segments are the weak links of the structure, and the mechanical behavior of the joints directly affects the overall performance of the bridge. Existing prefabricated segmental concrete bridges generally have a plurality of closely ma...

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
IPC IPC(8): E01D19/06
Inventor 陈黎王荣辉谷利雄
Owner SOUTH CHINA UNIV OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap