Gradient-structure composite bridge pier

A gradient structure and pier technology, which is applied in bridges, bridge parts, bridge construction, etc., can solve the problems that the mechanical properties of steel are not fully exerted, and achieve the effects of shortening the construction period, improving seismic performance, and speeding up construction

Inactive Publication Date: 2015-10-28
EAST CHINA JIAOTONG UNIVERSITY
View PDF8 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with steel piers, concrete-filled steel pipe piers increase the stiffness of the section, and rely on the hoop effect of steel pipes to further improve their be

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
  • Gradient-structure composite bridge pier
  • Gradient-structure composite bridge pier

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] The present invention will be further described below in conjunction with drawings and embodiments.

[0020] Taking the circular piers with caps at the bottom commonly used in highway bridges as an example, the specific implementation measures of the present invention are as follows.

[0021] Steel pipe forming. The round steel pipe is formed by cold bending of flat steel plates in the factory, and the joints are welded on both sides. The thickness of the steel plate is 6-10mm, and the low-carbon A3 steel is used. After the round steel pipe is formed, square stiffeners are welded on both sides of the steel pipe. -10mm, width 5-10cm, 6-8 lanes horizontally, vertically through; the corrugated steel pipe is made of SS400 hot-rolled steel plate, with a thickness of 2.5-10mm, formed by a corrugated pipe forming machine, and the wave pitch of the formed corrugated steel pipe is 12.5- 20cm, the wave height is 2.5-6cm, and the vertical height is 5-10cm higher than the round st...

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
Thicknessaaaaaaaaaa
Widthaaaaaaaaaa
Login to view more

Abstract

A gradient-structure composite bridge pier comprises a round steel pipe, fiber-reinforced powder concrete and a corrugated steel pipe from inside to outside. Outward square stiffening ribs are welded to the round steel pipe, and the closed corrugated steel pipe is arranged outside the round steel pipe; and the fiber-reinforced powder concrete is cast between the corrugated steel pipe and the round steel pipe, and the square stiffening ribs are contained in the fiber-reinforced powder concrete. By means of the gradient-structure composite bridge pier, the self weight of the bridge pier can be reduced, and the bearing capacity and the anti-seismic property of the bridge pier can be improved; and through industrialized production and field assemblage, the construction speed of the bridge pier can be increased, and the construction period is shortened.

Description

technical field [0001] The invention belongs to the technical field of bridge engineering and relates to a composite bridge pier with gradient structure. Background technique [0002] As an important part of the bridge structure, the bridge pier not only bears the load from the superstructure, but also transmits the load and its own weight to the foundation through the foundation, so its structural safety is very important. However, in previous earthquakes, the damage of bridge piers is relatively common, which often leads to the collapse or overturning of the bridge as a whole and interrupts traffic, which not only brings huge economic losses and casualties, but also seriously hinders the smooth progress of earthquake relief and exacerbates earthquake disasters. disaster. [0003] At present, the most widely used bridge piers in our country are reinforced concrete bridge piers, which have high strength and rigidity, but their ductility and energy dissipation capacity are p...

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): E01D19/02
Inventor 任亮王凯上官兴梁明元朱恩
Owner EAST CHINA JIAOTONG UNIVERSITY
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