Construction method of prefabricated segment type pier

A construction method and segmental technology, applied in bridges, bridge parts, bridge construction, etc., can solve the problems of difficult construction, short construction period, immaturity, etc., to shorten the construction period, save project cost, and reliable force Effect

Active Publication Date: 2017-04-26
HENAN PROVINCIAL COMM PLANNING & DESIGN INST CO LTD +1
View PDF6 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method has a short construction period and low requirements for construction machines and tools. However, the technology for prestressed construction of bridge piers is immature, the construction is difficult, and the c

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
  • Construction method of prefabricated segment type pier
  • Construction method of prefabricated segment type pier
  • Construction method of prefabricated segment type pier

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] The construction method of the prefabricated segmental pier of the present invention comprises the following steps:

[0028] The first step is to prefabricate the positioning block 1, the upper segment 2 and the lower segment 3 in batches at the prefabrication site, and then transport them to the construction site;

[0029] Such as figure 1 As shown, the positioning block 1 includes an upper connecting portion 1.3 and a lower connecting portion 1.4 with first shear keys 1.1, 1.2 on the surface respectively, and an annular wing 1.5 is arranged between the upper and lower connecting portions 1.3, 1.4, and the annular wing Grouting sleeves 1.6 with a length of about 40-100 cm are evenly distributed longitudinally on 1.5, and the grouting sleeves 1.6 are connected through internal grouting channels. On the outer wall of the upper and lower connecting parts 1.3, 1.4 and the annular wing 1.5 are perpendicular to each other;

[0030] Such as figure 2 As shown, the upper se...

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

No PUM Login to view more

Abstract

The invention discloses a construction method of a prefabricated segment type pier. Firstly, prefabricating a positioning block, an upper segment and a lower segment; secondly, assembling the positioning block and the lower segment; the third step, assembling the positioning block and the upper segment; the fourth step, grouting; and the fifth step, installing annular stirrups on the periphery of an annular wing plate. Compared with the existing pier construction technology, the prefabricated pier segments can be prefabricated in a large scale and transported conveniently; as the size is smaller, large-scale lifting equipment is not needed; the prefabricated pier segments are connected by adopting the way of combining the body socket and spigot joint and the socket and spigot joint of a grouting casing pipe and stress column bar splices, the prestressed connection type is avoided, no additional temporary connection measures are needed, the structure is accurate in positioning and reliable in stress, the construction period is shortened, and the construction cost is lowered; and the perpendicularity of the prefabricated pier is guaranteed through the way of arranging the annular wing plate on the positioning block and the way of arranging spacers between the annular wing plate and the upper segment and between the annular wing plate and the lower segment.

Description

technical field [0001] The invention relates to the technical field of road and municipal bridge construction, in particular to a construction method of a prefabricated segmental bridge pier. Background technique [0002] In the construction of highways and municipal bridges, there are three common pier construction methods: the first is the in-situ pouring method: this method is a traditional pier construction method, which mainly includes the stages of binding the pier body steel skeleton, installing molds, concrete pouring and curing . The advantage is that the construction technology is relatively mature, and the disadvantage is that the construction period is long, the construction equipment and auxiliary facilities are repeatedly configured, the resource and energy consumption is large, and the financial and material resources are wasted. Especially in the construction of urban bridges, the ground road is used as a construction site for a long time. , The traffic and ...

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): E01D21/00E01D19/02
CPCE01D19/02E01D21/00
Inventor 杜战军李斐然邓翔马转龙志刚刘志献李海军张广敏
Owner HENAN PROVINCIAL COMM PLANNING & DESIGN INST CO LTD
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