KR20040088735A - A Design and Construction of Joint between Corrugated Structural Steel Plate and R.C Box-Culvert - Google Patents

Abstract

PURPOSE: A joint between a corrugated structural steel plate and the existing reinforced concrete box-culvert is provided to heighten the stability of a box-culvert and to bind up the plane of a box-culvert and the edge of a steel plate effectively. CONSTITUTION: The joint between a corrugated structural steel plate and the existing reinforced concrete box-culvert is formed by connecting using an L-shaped section steel and a bolt and welding both lateral steel plates to bear against earth pressure added on the outside of a box-culvert and to prevent the outflow of soil.

Description

Design and Construction of Corrugated Structural Steel Plate and R.C Box-Culvert}

The passage box (Box-Culvert) is a structure that is installed in order to promote the convenience of mobility between regions, the conventional structure on the road, and serves as a movement passage of the ecosystem.

When the road is extended, the existing reinforced concrete aisle box should also be extended. The methods that can be used in extending and extending the passage box include the connection of the first reinforced concrete passage box and the reinforced concrete passage box, and the second connection of the reinforced concrete passage box and the corrugated structural steel plate.

① Prior art

There is no mention yet about the joining of the corridor box and corrugated steel.

② Problem

First, looking at the connection between the existing reinforced concrete aisle box and the new reinforced concrete aisle box, the passage box is complicated construction, long construction period, high construction cost, and winter construction is impossible due to the curing of concrete.

However, when joining using corrugated steel plate registered as new technology to existing passage box, construction time is shorter, construction cost is cheaper than construction of reinforced concrete passage box structure, and construction is possible even in winter because it does not use concrete.

Second, when the wheel load of the vehicle is loaded at the junction between the reinforced concrete path box and the corrugated steel sheet, there is no problem in the passage box, which is the reinforced concrete structure, but since the loads acting on the upper part of the joint are concentrated, reinforcement is required.

As mentioned above, unless proper reinforcement of the junction of the existing reinforced concrete passageway box and the corrugated steel sheet is made, there is bound to be structural instability. Therefore, the proper reinforcement for the junction can be said to be essential.

This reinforcement may be the purpose of ensuring the stability of the passage box which is a road structure.

The technical problem is to effectively bind the edges of the steel plate with the face of the passage box, which is a reinforced concrete structure.

1 is a view showing the junction of the existing reinforced concrete passage box and corrugated steel sheet structure.

FIG. 2 is a view showing the outside of the bonding surface of cross section # 1 in the drawing of FIG. 1.

3 is a view showing the inside of the bonding surface of the section # 2 of the figure of FIG.

FIG. 4 is a diagram showing a joint pipe steel part of section # 3 in the figure of FIG. 1. FIG.

FIG. 5 is a view showing a joint pipe and a H-shaped steel reinforcement section in section # 4 of the figure of FIG. 1.

FIG. 6 is a diagram illustrating a joint part steel plate and a H-shaped steel reinforcing part in cross section # 5 of FIG. 1.

The structure of this junction part is as follows.

As shown in Figure 1, the junction is divided into six sections, and the work of each section is as follows.

1) Section # 1

In Section # 1, as shown in FIG. 2, the portion where the existing reinforced concrete aisle box and the corrugated steel plate are in contact with each other is connected by using an A-shape steel and a bolt, and the outside of the aisle box is operated by welding a steel plate on both sides. It resists earth pressure and prevents soil leakage.

2) Section # 2

In Section # 2, the upper slab of the aisle box and the steel plate are connected to each other using an A-shape steel and a bolt, and the corrugated steel plate is more firmly fixed by reinforcing the H-steel to the wall of both ends of the aisle box. .

3) Section # 3

In Section # 3, the welded joints of the H-shape and the pipe are made to withstand the earth pressure acting on both sides of the corrugated steel.

4) Section # 4

In Section # 4, the H-beams in the upper side of the aisle box slab, the H-beams in the wall, and the pipes were welded together to provide integration and structural stability.

5) Section # 5

In Section # 5, the H-beam reinforcement of the upper slab of the aisle box, the H-beam reinforcement in the wall, and the end finish using the reinforcing steel plate are used to secure the visual stability of the pedestrian passing through the aisle box and provide structural stability. It was.

The design and construction of this joint focused on structural stability against live loads, loads and dead loads acting at the top, and also considered ease of construction.

Claims (1)

Existing reinforced concrete aisle box (Box-Culvert) Claims for the design and construction of joints in corrugated structural steel plates.