Multi-stiffener for civil engineering and construction

Abstract

A multi-stiffener for civil engineering and construction includes an outer pipe member, an inner pipe member, an inner pipe position adjusting pin and a positioning member. The outer pipe member includes an outer pipe strut plate provided at one end of the outer pipe member, a pair of slot-shaped symmetrical guide holes extending in a longitudinal direction from a position spaced apart by a predetermined distance from an open end of the outer pipe member, and a height-adjustment-purpose external thread formed around the guide holes. The inner pipe member includes an inner pipe strut plate provided at one end of the inner pipe member and a plurality of symmetrical through-holes formed at specific intervals from the inner pipe strut plate. The inner pipe position adjusting pin is configured to penetrate the guide holes of the outer pipe member and the through-holes of the inner pipe member.

Description

TECHNICAL FIELD[0001]The present invention relates to a multi-stiffener for civil engineering and construction capable of securing the strength of a wale as a walling temporary installation member and, more particularly, to a multi-stiffener for civil engineering and construction which is installed in a removable manner instead of welding so that the stiffener can be installed and removed with ease to reuse the same and the length of the stiffener can be adjusted with ease.BACKGROUND ART[0002]In general, at the time of a civil engineering and construction work, the ground is first excavated and a walling temporary facility is installed in order to prevent the collapse of the ground. Thereafter, construction is carried out.[0003]The walling temporary facility is installed using a spread beam method or a ground anchor method. An H-beam type wale is perpendicularly installed inside a horizontal spread beam to support the spread beam.[0004]However, in the walling temporary facility havi...

AI Technical Summary

Benefits of technology

The present invention provides a non-weld type stiffener for reinforcing wale in civil engineering and construction. It is easy to install, remove, and reuse. Additionally, the invention allows for easy adjustment of length and reduces the time required for installation.

Problems solved by technology

However, in the walling temporary facility having the aforementioned structure, loads are concentrated on the horizontally-installed wale.

Thus, if a local buckling phenomenon occurs in the wale, a ground sinking or collapse accident may be generated.

Specifically, when a shear stress is excessively generated in the wale, buckling occurs in the wale.

This leads to deformation and shear failure of the wale.

Thus, there may be generated an accident in which a screw jack is destroyed and a walling temporary facility is collapsed.

This poses a problem in that a great deal of time is consumed in installing the wale-reinforcing stiffeners.

Thus, there is a problem in that the deformation and collapse of the walling temporary facility, the sinking of the rear surface portion and the like occur.

Furthermore, according to the conventional method in which the reinforcing stiffener is attached to the wale by welding, the stiffener cannot be reused and is therefore uneconomical.

After the stiffener is installed, it is difficult to change the position of the stiffener.

In addition, there is a problem in that the labor cost is increased due to the fillet welding work.

This leads to a problem of reduced installation quality.

In addition, at the time of the welding work of the stiffener, there may be generated an accident in which a worker falls down or undergoes electrical shock.

There is also a possibility of explosion.

If a worker performs works for a long time in an unstable posture, a problem is posed in that the worker may suffer from a muscular skeletal disease.

However, the conventional non-weld type stiffeners have a problem in that it is difficult or impossible to adjust the length thereof, which makes it impossible to generally use the non-weld type stiffeners.

In addition, some of the conventional non-weld type stiffeners cannot be installed or are difficult to install in a specific section.

It is also inconvenient to adjust the length thereof using a spanner.

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