Psc bridge pier assembled with precast concrete segments having steel duct and steel pipe and reinforcing bar, and constructing method thereof

Abstract

A PSC bridge pier assembled with precast concrete segments having steel ducts and steel pipes and rebars, and a constructing method thereof are provided to erect steel wires while accumulating the segments by installing steel wire supporting steel pipes between the steel wire and a sheath pipe. A constructing method of PSC bridge pier assembled with precast concrete segments(120) having steel ducts and steel pipes and rebars(210) includes the steps of: constructing a footing(110) including sheath pipes, steel wires inserted in the sheath pipes, shear connectors which protrude upwards, rebar holes formed between the shear connectors; inserting a steel wire supporting steel pipe having the same length with the steel wire between the sheath pipe and the steel wire; inserting the rebars in the rebar holes; mounting the segment on the footing by inserting the shear connectors into connection sockets of the segment, wherein the segment includes shear connectors, the connection sockets, and rebar holes which are in lines with the rebar holes of the footing; mounting another segments on the segment by inserting shear connectors into the connection sockets; forming a coping portion(130) on the top surface of the highest segment; and removing the steel wire supporting steel pipes, fixing the stretched steel wires, and fixing the rebars.

Description

technical field [0001] The present invention relates to a reinforced concrete pier assembled with prefabricated concrete blocks having steel conduits, steel pipes and steel bars and a construction method thereof, more specifically, a front end connector part utilizing a short steel conduit is set on the pier foundation and blocks ; The connection slot part of the short steel conduit is set on the block and the cover beam; for the degree of freedom of the steel wire, the steel pipe is inserted between the casing and the steel wire; The utility model relates to a reinforced concrete pier assembled with prefabricated concrete blocks of steel pipes partially embedded in steel bars, steel pipes and steel bars, and a construction method thereof. Background technique [0002] Usually, bridge construction, where concrete is poured on site, has been largely reduced in recent times due to long construction times, environmental concerns and public grievances. Instead, a rapid construc...

AI Technical Summary

Problems solved by technology

[0009] However, since one end of the steel conduit is formed with a constricted portion and the other end is formed with an expanded portion, when the length of the block is increased, the length of the steel conduit is also increased, resulting in an increase in construction costs

[0010] In addition, the casing is set on the foundation of the pier, and a steel wire with the same length as the pier is inserted into the casing, and then the steel wire is bent when the blocks are stacked, which causes the problem of difficulty in stacking the blocks

[0011] In addition, when the blocks applied to the pier are connected to the pier foundation, the front end portion connected to the block is not formed on the pier foundation, so the connection between the block and the pier foundation is difficult, and the front end of the joint may be damaged.

[0012] Moreover, in the pier structure, the energy release capacity of the reinforced concrete pier using steel wires to resist bending is reduced, and the construction cost is increased due to the need for many steel materials and fixing parts

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