Prefabricated assembled hollow pier based on UHPC joints and construction method

A prefabricated assembly and hollow technology, which is applied in erecting/assembling bridges, bridges, bridge construction, etc., can solve the problems of high segment manufacturing accuracy, insufficient energy consumption, and low strength of connecting surfaces, so as to avoid the accumulation of construction errors and pouring And the effect of convenient maintenance and low manufacturing precision requirements
CN113123221APending Publication Date: 2021-07-16CHINA RAILWAYS CORPORATION +1
8 Cites 1 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA RAILWAYS CORPORATION
Publication Date
2021-07-16

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a prefabricated assembled hollow pier based on UHPC joints and a construction method of the pier, the prefabricated assembled hollow pier comprises a pier column and a base, the pier column is a hollow pier column, the pier column is sequentially composed of a pier bottom section, a middle section and a top cap section from bottom to top, the pier bottom section is located at the top of the base, steel bar connectors are embedded between the pier bottom section and the base, between the pier bottom section and the middle section and between the middle section and the top cap section, reinforcing stirrups are arranged outside the steel bar connectors, and connection is achieved through post-pouring of UHPC joints. According to the invention, the steel bar connectors between the sections are easy to position and connect, the height of the joints is remarkably reduced, and the using amount of joint concrete is small; the segment construction tolerance is large, and the precision requirement is low; joints are free of vibration, self-compaction is achieved, pouring is convenient, and construction is simple; and the assembled pier is excellent in overall performance, high in joint durability, rapid to assemble, short in field operation time and high in efficiency.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the field of bridge construction, in particular to a prefabricated assembled hollow pier based on UHPC joints and a construction method. Background technique

[0002] Segmental prefabricated assembled pier construction, as one of the rapid construction technologies for bridges, has been applied in domestic and foreign highway municipal projects and sea-crossing long bridge projects. It is more difficult, and the use of prefabricated assembly has greater advantages. As one of the most basic pier types in bridge pier structures, hollow piers have the advantages of high rigidity and light segmental weight, and are widely used in prefabricated assembled bridge piers.

[0003] At present, segmental prefabricated assembled hollow piers are generally assembled by post-cast concrete joints or prestressed connections. Post-cast concrete joints refer to prefabricating the segments in the factory, and reserve a line or U-shaped steel ba...

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