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Splicing structure and splicing method of prefabricated bridge piers and prefabricated bearing platform

A technology of prefabricated caps and bridge piers, which is applied in the direction of basic structure engineering, bridges, bridge parts, etc., can solve the problems of construction quality affected by the overall quality of workers, easily affected by weather and natural environment, and the quality of cast-in-place is difficult to guarantee, etc., to achieve convenience The effects of on-site operation, shortened construction period, and improved splicing strength

Pending Publication Date: 2018-05-18
FUJIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, most of the round piers of highway bridges in our country are cast-in-place, and the cast-in-place bridges have at least the following defects: 1. The construction period is too long, and they are easily affected by the weather and natural environment; 2. The existing roads are occupied during construction, which aggravates traffic jams; , The quality of cast-in-place is not easy to guarantee, and the construction quality is affected by the overall quality of workers

Method used

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  • Splicing structure and splicing method of prefabricated bridge piers and prefabricated bearing platform
  • Splicing structure and splicing method of prefabricated bridge piers and prefabricated bearing platform

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Experimental program
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Embodiment 1

[0048] Please refer to Figure 1 to Figure 2 Shown, embodiment one of the present invention is:

[0049] A splicing structure of a prefabricated pier and a prefabricated cap, comprising a prefabricated pier 1 and a prefabricated cap 2; a cylindrical first groove is provided at the center of the bottom of the prefabricated pier 1, and inside the first groove is a Hollow steel pipe 3, the hollow steel pipe 3 is attached to the inner wall of the first groove; the top of the prefabricated platform 2 is provided with an annular groove 4, and the inner wall of the annular groove 4 is surrounded by the hollow steel 3 Concrete-filled steel pipe tenon 5 matching the pipe; the prefabricated bridge pier 1 cooperates with the concrete-filled steel pipe tenon 5 through the hollow steel pipe 3 , and the bottom surface of the prefabricated bridge pier 1 fits with the groove bottom of the annular groove 4 ; The gap between the outer wall of the annular groove 4 and the outer wall of the pref...

Embodiment 2

[0057] The difference between the second embodiment and the first embodiment is that the number of the reinforced steel bar assemblies is four and distributed evenly along the circumference of the prefabricated pier.

Embodiment 3

[0059] The difference between the third embodiment and the first embodiment is that the number of the reinforced steel bar assemblies is eight and distributed evenly along the circumference of the prefabricated bridge pier. In this embodiment, eight reinforcing steel bar assemblies uniformly distributed along the circumference of the prefabricated bridge pier are used, compared with the use of four reinforcing steel bar assemblies in Embodiment 2, the strengthening effect on the joint of the prefabricated bridge pier and the prefabricated cap is better.

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Abstract

The invention provides a splicing structure and a splicing method of prefabricated bridge piers and a prefabricated bearing platform. By utilizing the joggling of hollow steel tubes in first concave grooves in the bottoms of the prefabricated bridge piers and concrete filled steel tube tenons enclosed by the inner walls of annular grooves in the top of the prefabricated bearing platform, on one hand, favorable positioning effects are achieved for the mounting, on the bearing platform, of the prefabricated bridge piers, and on the other hand, the shear capacity and the flexural capacity at splicing positions are improved; post-poured concrete is poured into the annular grooves to enwrap the splicing positions of the prefabricated bridge piers and the prefabricated bearing platform; the prefabricated bridge piers and the prefabricated bearing platform are connected into a whole; an overall stress structure is ameliorated; the splicing strength of the prefabricated bride piers and the prefabricated bearing platform is greatly improved, and is not less than the strength of a cast-in-place bridge pier. By adopting a way of splicing the prefabricated bride piers and the prefabricated bearing platform, the field pouring workload of concrete is effectively reduced; the field operation is facilitated; a road is not occupied; influences on an urban traffic environment during the operation are effectively relieved, and meanwhile, a construction period of a bridge is shortened.

Description

technical field [0001] The invention relates to the technical field of bridge engineering, in particular to a splicing structure and splicing method of a prefabricated bridge pier and a prefabricated cap. Background technique [0002] At present, most of the round piers of highway bridges in my country are cast-in-place, and cast-in-place bridges have at least the following defects: 1. The construction period is too long, and they are easily affected by the weather and natural environment; 2. The existing roads are occupied during construction, which aggravates traffic jams; 3. , The quality of cast-in-place is not easy to guarantee, and the construction quality is affected by the overall quality of workers. In order to realize the industrialized manufacturing and rapid assembly of bridge piers, it is necessary to develop a new technology so that the design performance of the connection between prefabricated pier columns and between prefabricated pier columns and caps can rea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/02E02D27/14
CPCE01D19/02E02D27/14
Inventor 欧智菁林上顺刘秋江秦志清谢铭勤王金泽林文
Owner FUJIAN UNIV OF TECH
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