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Precast segmental bridge pier and application of precast segmental bridge pier in bridge construction

A bridge pier and segment technology, which is applied to prefabricated segment piers and its application in bridge construction, can solve the problems of gaps in connecting rods and connecting holes, durability problems, and high maintenance costs, so as to reduce initial pouring defects , The effect of high bearing capacity and low construction risk

Active Publication Date: 2019-07-09
SOUTHWEST JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This construction method is simple and efficient, but there are many connecting rods, and there is inevitably a gap between the connecting rods and the connecting holes, which has durability problems and high maintenance costs in the later period.

Method used

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  • Precast segmental bridge pier and application of precast segmental bridge pier in bridge construction
  • Precast segmental bridge pier and application of precast segmental bridge pier in bridge construction
  • Precast segmental bridge pier and application of precast segmental bridge pier in bridge construction

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Embodiment Construction

[0036] The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0037] In the embodiment of the present invention, such as Figure 1-9 As shown, a prefabricated segmental pier is provided, and the prefabricated segmental pier includes a pier body 500 and a jacket 400 . Among them, the pier body 500 is a hollow or solid cement column, the overall shape is round or square, etc., and its specifications can be adjusted appropriately according to the construction requirements; in order to increase the supporting strength of the pier body, several longitudinal reinforcement ribs are arranged inside the pier body 500 600, the length of the longitudinal rib 600 is the same as the length of the pier body 500.

[0038] A steel liner 300 is installed at one end of the pier body 500. The steel liner 300 is barrel-shaped as a whole, and its cross-sectional shape is the same as that of the pier body 500. The wall t...

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Abstract

The invention discloses a precast segmental bridge pier and application of the precast segmental bridge pier in bridge construction. The precast segmental bridge pier comprises a columnar bridge pierbody and a protecting jacket, wherein the two ends of the bridge pier body are provided with a steel inner container and a connecting piece respectively, and the connecting piece comprises a connecting steel plate fixed to the end of the bridge pier and a PBL connecting cylinder which penetrates through the connecting steel plate. Shear force connecting holes are formed in the PBL connecting cylinder, first punching bars are inserted into the shear force connecting holes in the end, inserted into the bridge pier body, of the PBL connecting cylinder, and the shear force connecting holes in theend, stretching out of the bridge pier body, of the PBL connecting cylinder are provided with second punching bars. Upright wall holes are formed in the side wall of the steel inner container, and installation holes are formed in the side wall of the bridge pier body; the protecting jacket comprises two protecting jacket plates, and fixing holes, right facing the upright wall holes, are formed inthe protecting jacket plates. The precast segmental bridge pier can be quickly assembled at a low construction risk, the initial imperfection is low, the bearing safety is ensured, the resource utilization rate is high, less pollution to the environment is caused, and the precast segmental bridge pier is economical and durable.

Description

technical field [0001] The invention belongs to the technical field of bridge engineering, and in particular relates to a prefabricated segmental bridge pier and its application in bridge construction. Background technique [0002] With the development of the economy and the progress of the society, the requirements for the construction speed of the highway and railway transportation network are getting higher and higher, and the requirements for environmental protection are getting stricter. At the same time, the safety, economy, construction risk controllability, and durability Sex and other aspects are also more and more important. This is especially true for bridge piers, which are the key link of a large number of bridges in the road network. [0003] The usual bridge piers are bound with steel bars, covered with supports and formwork at the construction site, then poured concrete, and removed the formwork after reaching the strength requirements. Due to the process a...

Claims

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Application Information

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IPC IPC(8): E01D19/02
CPCE01D19/02
Inventor 赵灿晖李志翔徐荣耀汪钺宸邓开来
Owner SOUTHWEST JIAOTONG UNIV
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