Steel sleeve prefabricated assembly type pier with shear nails

A technology of prefabricated assembly and steel sleeves, which is applied in the direction of erecting/assembling bridges, bridges, bridge parts, etc., can solve problems such as damage and peeling, and achieve the effects of reducing workload, small environmental impact, and saving steel

Inactive Publication Date: 2016-12-07
SHANGHAI INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The formation of plastic hinges is conducive to energy dissipation, but the plastic hinge area is also the area with relatively serious damage. When the vibration occurs, the concrete on the surface layer peels off a lot, and special measures need to be taken to repair it after the earthquake

Method used

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  • Steel sleeve prefabricated assembly type pier with shear nails
  • Steel sleeve prefabricated assembly type pier with shear nails
  • Steel sleeve prefabricated assembly type pier with shear nails

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0035] See figure 1 , the prefabricated assembled bridge pier with steel sleeves with shear nails provided in this embodiment includes caps 2 and pier columns 1, and steel sleeves 3 with shear nails connect the caps 2 and the pier columns 1, A part of the steel sleeve 3 is located in the cap 2, and the other part is connected to the pier 1, and the shear stud 5 of the steel sleeve part in the cap 2 is set on the steel sleeve 3 outside, the shear stud 4 of the steel sleeve part connected to the pier column 1 is arranged inside the steel sleeve 3 . The pier column 1 is also pre-embedded with pier body pre-embedded longitudinal reinforcement 6, and the pier body pre-embedded longitudinal reinforcement 6 is inserted into the steel sleeve part of the cap 2, and the cap 2 is provided with " L"-shaped steel bar 8, a section of the "L"-shaped steel bar 8 with pier thickness 7 is arranged inside the pre-embedded longitudinal reinforcement 6 of the pier body and poured together with th...

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PUM

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Abstract

The invention discloses a steel sleeve prefabricated assembly type pier with shear nails. The pier comprises a pier column 1 and a bearing platform 2. A steel sleeve 3 with the shear nails is connected with the bearing platform 2 and the pier column 1. The shear nails 4 on the part, connected with the pier column 1, of the steel sleeve are arranged on the inner side of the steel sleeve, and the shear nails 5 on the part, located in the bearing platform, of the steel sleeve are arranged on the outer side of the steel sleeve. Longitudinal ribs 6 embedded in a pier body are inserted into the part, located in the bearing platform 2, of the steel sleeve. The longitudinal ribs 6 and L-shaped rebars 8 are poured together, and an upsetting head 7 is reserved at the end, located in the bearing platform 2, of each L-shaped rebar 8. The steel sleeve with the shear nails is adopted for connecting the pier column and the bearing platform, a plastic hinge zone is wrapped with the steel sleeve in advance, the earthquake damage that a large amount of surface layer concrete peels off can be avoided, and the normal using performance can be restored through a little restoration work after earthquakes.

Description

technical field [0001] The invention relates to the technical field of road and bridge construction, in particular to a steel sleeve prefabricated assembled bridge pier with shear nails. Background technique [0002] At present, the substructure of urban bridges in my country usually adopts the method of cast-in-place construction. The disadvantage of this traditional construction process is that the construction period is long, which will bring many adverse effects on the urban environment and traffic. As my country's urban construction continues to advance, energy conservation, low-carbon, and environmental protection have gradually become the theme of my country's economic development. One of the main challenges facing the design of urban bridge structures is that urban residents and governments not only require the safety and durability of the structure, but also hope to reduce the interference to urban traffic and reduce various noises during the construction process th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/02E01D21/00
CPCE01D19/02E01D21/00
Inventor 葛继平糜长荣雷海博
Owner SHANGHAI INST OF TECH
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