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

Steel plate holder and skew spike combined rapid connecting steel and UHPC (ultrahigh performance concrete) combination structure system

A technology of quick connection and composite structure, applied in bridge parts, erection/assembly of bridges, bridge materials, etc. The effect of lateral stiffness

Active Publication Date: 2019-03-19
SOUTHEAST UNIV
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these measures can reduce the self-weight of the structure to a certain extent, but at the same time make the construction process complicated and difficult to implement

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
  • Steel plate holder and skew spike combined rapid connecting steel and UHPC (ultrahigh performance concrete) combination structure system
  • Steel plate holder and skew spike combined rapid connecting steel and UHPC (ultrahigh performance concrete) combination structure system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0028] The invention is a novel high-performance steel-UHPC sheet composite structure system and an interface connection technology adapted thereto. The structural system mainly includes the UHPC sheet 2 laid on the steel beam 1 and the combined shear member 3 and high-strength bolts 6 welded on the steel beam 1. It is combined by nail welding and fixed through the high-strength bolts 6 through the reserved holes on the steel plate support.

[0029] The oblique pegs are pegs with a diameter of 30 mm.

[0030] The length of the hypotenuse of the steel plate support meets the diameter of the short nail and welding requirements, and the thickness of the steel plate support is determined according to the length of the hypotenuse and the inclination angle.

[0031] The bridge deck is made of UHPC sheets with mixed fibers, and its thickness is determined according to the bearing capacity requirements and geometric conditions such as the arrangement of shear members. The mixed fiber...

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

PropertyMeasurementUnit
diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a steel plate holder and skew spike combined rapid connecting steel and UHPC (ultrahigh performance concrete) combination structure system, comprising a steel beam, an UHPC thin slab, steel plate holders and short spikes; the steel plate holders are of isosceles-trapezoid structure, and are connected with the steel beam through high-strength bolts; the short spikes are vertically arranged on bevels of two sides of each steel plate holder; the UHPC thin slab is cast on the upper side of the steel beam; combinations of the steel plate holders and the short spikes are uniformly distributed inside the UHPC thin slab. As the deck slab is made of UHPC, dead weight of the structure can be reduced while bridge capacity of the structure can be improved; steel plate holder and skew spike combined connectors are used for interface connection at the interface, so that comprehensive advantages of the steel plates serving as the rigid connectors and the spikes serving as theflexible connectors can be achieved well, and interface slippage can be reduced under action of rigid connection of the steel plate holders in the normal application state; in the UHPC slab, the shortskew spikes are in staggered arrangement to form the reinforcing truss of the UHPC, and accordingly rigidity of the UHPC slab is increased and the integral rigidity of the combination section is increased.

Description

technical field [0001] The invention belongs to the field of composite structures in the field of civil engineering, and in particular relates to a composite bridge structure system formed by steel girders and ultra-thin UHPC bridge decks and related interface connection technology. Background technique [0002] The traditional steel-concrete composite structure mainly uses steel beams and ordinary concrete bridge decks to form a combined section through shear connectors such as studs to jointly bear the force. Compared with the steel bridge structure system, the composite structure bridge can reduce the structural cost, and compared with the concrete bridge, the composite structure bridge can effectively reduce the structural weight. Therefore, this structural system gives full play to the advantages of steel structure and concrete structure in terms of construction performance and mechanical performance, and at the same time has good economy. However, studies by domestic ...

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): E01D21/00E01D19/12
CPCE01D19/12E01D21/00E01D2101/262
Inventor 王景全徐启智张凡姚一鸣曾永平
Owner SOUTHEAST UNIV
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