Structure and method of connecting I-type prestressed concrete beams using steel brackets

Abstract

A structure and method of connecting a plurality of PSC-I beams (PSC-I beams) to each other using steel brackets. The beam connecting structure, each having a sheath pipe therein, includes an end plate which is mounted on each of both ends of each of the PSC-I beams, with a through hole provided on an upper portion of the end plate to correspond to the sheath pipe embedded in each of the PSC-I beams; a steel bracket integrally which is provided on the end plate to be perpendicular to the end plate; a bracket coupling plate to integrally couple the aligned steel brackets to each other; a bottom connecting plate which is provided on lower ends of the aligned steel brackets to connect the steel brackets to each other; a connecting sheath pipe which is provided between the PSC-I beams so that both ends of the connecting sheath pipe are respectively inserted into the through holes of the neighboring end plates of the PSC-I beams while the PSC-I beams are arranged linearly; a prestress strand which is inserted in the sheath pipes of the PSC-I beams and the connecting sheath pipe; and a concrete part which is filled in a space between the PSC-I beams to embed the aligned steel brackets, the bracket coupling plate and the connecting sheath pipe in the concrete part.

Description

BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention relates generally to a structure and a method of connecting I-type prestressed concrete beams (hereinafter referred to simply as PSC-I beams) using steel brackets, and more particularly, to a structure and a method of connecting a plurality of PSC-I beams, separately precasted on the ground, to each other using steel brackets. [0003] 2. Description of the Related Art [0004]FIG. 1A is a side view of a two-span bridge with a conventional structure for connecting two I-type prestressed concrete beams 1 (PSC-I beams) to each other. The two PSC-I beams 1, used in the conventional two-span bridge of FIG. 1A, are separately precasted on the ground. Thereafter, each of the PSC-I beams 1 is independently placed between a pier 2 and a pair of support grounds, which support both ends of the two-span bridge, to form a simple beam system. At this time, the two PSC-I beams 1 are connected to each other by on...

AI Technical Summary

Benefits of technology

[0009] Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide a structure and a method of connecting a plurality of PSC-I beams to each other using end pla

Problems solved by technology

Thus, the conventional beam connecting structure imposes excessive constructing costs on users.

Therefore, a crack may be generated around the cold joint by the live load.

Thus, structural defect may be caused

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