KR20170046518A

KR20170046518A - Reinforced Road Cover Plate with Steel Pipe Strut

Info

Publication number: KR20170046518A
Application number: KR1020150146962A
Authority: KR
Inventors: 김태수
Original assignee: 주식회사 윤준에스티; 김태수
Priority date: 2015-10-21
Filing date: 2015-10-21
Publication date: 2017-05-02

Abstract

The steel pipe liner plate provided with the reinforcing material of the present invention comprises: a lid plate provided on the upper surface of a road excavated so that a vehicle or a person can pass; A plurality of steel tubes arranged in parallel to support the cover plate; A stiffening plate that is in contact with the steel pipe at right and left sides of the steel pipe and installed side by side with the steel pipe; And a connecting plate connecting between the cover plate and the stiffening plate located outside the stiffening plate and the stiffening plate located at the edge of the stiffening plate, and a semicircular portion of the circumference of the steel pipe at the upper and lower portions of the steel pipe, And a shear reinforcement plate contacting the upper and lower bending reinforcing plates.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001]

[0001] The present invention relates to a laminating board which is installed so as not to inconvenience the passage of vehicles or people on the ground in the process of installing an underground structure, and more specifically to a laminar board having a reinforcing material.

Recently, as the need for expansion of social overhead facilities has increased, underground excavation work has been under way in the city center. The characteristics of underground excavation work are maximum spatial excavation and great excavation excavation to maximize the use of limited space and underground construction where subway, overpass, underground structure, office space and ground structure for residential space are close to each other have.

Especially, underground excavation works for constructing underground structures in large urban areas in a limited space in urban areas should be considered as a top priority for stabilization of surrounding grounds. It is an important part. The retention method can be divided into two methods as a method to utilize the temporary earth retaining structure and a method to construct an underground structure in parallel with the excavation and earthwork as the main structural body acts as an earth retaining wall in response to earth pressure and water pressure. There is a risk of collapse of the retaining structure due to the possibility of civil complication and stability of the surrounding ground. In addition, there are many cases where complaints are generated due to the displacement of surrounding grounds and compensation for construction interruption or civil complaints.

In the present earthwork, the steel culverts are used for the clay, and the cast-in-place wall (CIP) and the soil cement wall (SCW) are used. Earth Anchor, Soil Nailing, Rock Bolt, and top-down construction methods.

In the case of using the hypothetical Strut, there is a high possibility of inducing the change of surrounding ground during the installation and dismantling process of the installation and dismantling. However, compared to the top-down method, It has the advantage of reducing the cross section of the slab and is now widely used.

On the other hand, when excavating the surface of the ground during the subway or road construction, it is difficult to pass on the road on the upper side, causing serious traffic jam nearby. Therefore, do.

A structure for supporting the above-mentioned flat plate at the bottom is required, and the structure can simultaneously function as a strut to support the load of the earth surface excavated in the underground earthworks.

Instead of the H-Pile, which is required to be reinforced with respect to the weak axis in the buckling design with respect to the compressive load transmitted from the earth wall through the wedge in the presence of the weak axis and the strong axis, Rectangular cross-section pipes are widely used.

Therefore, it is very important to secure the rigidity of the steel pipe supporting the flat plate, to achieve the stable supporting structure of the flat plate itself, and to secure the stability of the entire underground construction by supporting the lateral pressure of the underground wall depending on the situation of the construction site.

Strengthening the steel pipe to secure the rigidity of the steel pipe is very important in terms of the recovery rate of the material since the steel pipe is a viscous material rather than a permanent structure and therefore must be disassembled and recycled after completion of the removal of the lining board or underground works .

Korean Patent Publication No. 10-0758711

In the present invention, the bending strength and the shear strength of a multi-row steel pipe supporting a vertical load transmitted to a steel pipe through a hollow plate are reinforced to achieve structural stability of the plate.

Particularly, in the case where a steel pipe supporting a flat plate simultaneously functions as a strut in a underground earth retaining work, a means for effectively reinforcing the bending strength and the shear strength of a strut, which is subjected to axial compressive load by lateral load, is provided.

In addition, considering the possibility of brittle fracture when a steel pipe receives a compressive load due to a lateral load, it is intended to provide a supporting structure of a laminator.

In order to improve the recovery rate of the members, the economic efficiency should be secured.

In the steel pipe liner having the reinforcing member of the present invention, the connecting plate and the bending stiffening plate are connected by a rivet bolt, and the bending stiffening plate and the bending stiffening plate may be connected by a fastening bolt.

In the steel pipe liner having the reinforcing member of the present invention, the lower liner plate can be provided on the lower surface of the steel pipe opposite to the lid plate along the multiple rows of the shear reinforcement plates.

In the steel pipe liner having the reinforcing material of the present invention, the tie rod bolt can be inserted between the steel pipe and the steel pipe and fastened.

In the steel pipe liner having the reinforcement of the present invention, concrete can be filled in the steel pipe.

According to the steel pipe liner having the stiffener according to the present invention, the steel pipe supporting the lid plate is partitioned by a plurality of stiffening plates to restrict the bending deformation of the member, and a bracing So that it is possible to faithfully cope with the shear deformation.

Particularly, the supporting structure of the cover plate by the connecting plate between the cover plate and the stiffening plate, the bolt connecting part between the stiffening plate and the stiffening plate, the tie rod bolt between the steel pipe and the steel pipe, The structural stability can be improved.

In addition, through the above-described structural stability, deformation of the steel pipe can be prevented or minimized, thereby increasing the rigidity of the steel pipe and improving the recovery rate.

1 is a perspective view of a first embodiment of the present invention viewed from above.
2 is an exploded perspective view of a first embodiment of the present invention.
3 is a perspective view of a first embodiment of the present invention, which is seen from below.
4 is a cross-sectional view taken along line AA in Fig. 1 of the present invention.
5 is a perspective view showing a tie rod bolt fastened between a steel pipe and a steel pipe;
Fig. 6 is a cross-sectional view taken along line BB of Fig. 5 of the present invention.
Fig. 7 is a perspective view showing concrete filled with concrete in a steel pipe.
Fig. 8 is a cross-sectional view in the CC direction of Fig. 7 of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings.

In the drawings, the same reference numerals are used for the same or corresponding components.

In the present invention, the distinction between the left and right direction and the up and down direction is based on the direction in which the drawing is viewed in each drawing, and the horizontal and vertical distinctions are defined as horizontal direction parallel to the longitudinal direction of the steel pipe strut, do.

Although the buckling design due to the lateral load of the underground earthen wall is also important in the steel pipe supporting the above-mentioned flat plate, the present invention will mainly focus on reinforcing the bending stress and the shearing stress due to the vertical load transmitted from the upper portion of the lining plate.

A first embodiment of the present invention will be described with reference to Figs. 1 to 3. Fig.

In a steel pipe ladle with a reinforcing material according to the present invention, a steel pipe 1, in which a plurality of pipes are arranged side by side at the lower end of a lid plate 2 provided on the upper surface of a road excavated to allow passage of people or vehicles, Are arranged side by side. Between the steel pipe 1 and the steel pipe 1, there is provided a stiffening plate 5 which is in contact with the steel pipe 1 and is arranged in parallel with the longitudinal direction of the steel pipe 1. On the other hand, a stiffening plate 4 is also provided on the surface of the steel pipe 1 that is in contact with the outside of the laminating plate to completely surround the steel pipe 1 supporting the lid plate 2 of the present invention. The stiffening plate provided on the part is indicated by reference numeral 4 for convenience.

The steel pipe 1 supporting the steel pipe liner of the present invention may be surrounded by the partition walls by the above-mentioned stiffening plates 4, 5, the lid plate 2 and a shear reinforcement plate 10 to be described later, Whereby the displacement of each steel pipe 1 can be prevented from being transferred to the other steel pipe 1.

Particularly, the steel pipe liner of the present invention is a structure that is dismantled after completion of construction as a visible product, and the displacement of any part of the material or the destruction thereof to the adjacent member can lead to the collapse of the entire structure during construction, Blocking is a very important factor.

A connecting plate (3) is provided between the cover plate (2) and the bending stiffening plate (4) in parallel with the steel pipe (1). The connecting plate 3 connects the cover plate 2 to the bending stiffening plate 4 so that the load of the lid plate 2 is not concentrated only on the steel pipe 1, As shown in FIG.

Further, the steel pipe 1 can be engaged with the steel pipe 1 so as to cover the semicircular parts of the circumference of the steel pipe 1 from the upper part and the lower part of the steel pipe 1, The plate 10 is installed.

The shear reinforcement plate 10 includes a curved portion 12 that engages with the curved surface of the steel pipe 1 and a straight portion that extends from both sides in the radial direction of the steel pipe 1 and contacts the flexural reinforcement plates 4 and 5 11). The shear reinforcement plate 10 is a bracing having a plurality of longitudinally spaced intervals in the longitudinal direction of the steel pipe 1 and can reinforce the shearing force of the steel pipe 1 against the vertical load applied to the steel pipe 1. [

The cover plate 2 covers a total area of the upper surface of the steel pipe 1 by using an iron plate or the like so that a vehicle or the like can move. The cover plate 2 disperses a vertical load caused by a vehicle or the like in a plurality of steel pipes 1.

The steel pipe 1 behaves as a beam for supporting a vertical load applied to the lid plate 1 and the bending reinforcing plates 4 and 5 are attached to the steel pipe 1 in order to reinforce the bending stress and shear stress generated in the beam. And the front end reinforcing plate 10 is installed.

As a result, according to the present invention, the steel pipe 1 can form a closed end face surrounded by the cover plate 2 and the left and right reinforcing plates 4 and 5.

The connecting plate 3 serves to integrate the lid plate 2 and the bending stiffening plate 4 and is welded to the lid plate 2 and connected to the bending stiffening plate 4 by a rivet bolt. The connecting plate 3 and the lid plate 2 are welded to each other so that the connecting plate 3 and the lid plate 2 are integrated with each other. In the case of the visco- The plate (3) and the cover plate (2) are brought into the field in the state of being combined and used, and can be withdrawn without separate separation work in the field. On the other hand, the bending stiffening plates (4, 5) are brought into the field separately and connected with the rivet bolts (a) in the field, and the rivet bolts (a)

2 and 4, the connecting plate 3 is formed with a fastening hole b to be fastened to the rivet bolt a and a rivet bolt a inserted through the fastening hole b. Is inserted into another fastening hole formed in the stiffening plate (4), and then the nut (c) is fastened.

Likewise, the stiffening plate 5 between the steel pipe 1 and the steel pipe 1 is also joined by using the fastening bolts a and a plurality of bolt fastening portions are provided as shown in Fig. The bending stiffening plate 5 can be integrally moved and the bending stiffening plate 5 and the stiffening stiffening plate 5 can be easily disconnected after the construction.

2 to 3, the shear reinforcement plate 10 described above is installed on the opposite side of the cover plate 2 for reinforcing the front end of the steel pipe 1. In addition, the lower cover plate 2 are attached to the heat of the front end reinforcing plate 10. That is, the lower end cover plate 13, which is spaced apart by a plurality of constant intervals, covers the front end reinforcing plate 10 provided in the multi-row steel pipe 1 in the direction orthogonal to the steel pipe 1.

The lower cover plate 13 functions as a connecting strip for integrally connecting the front end reinforcing plates 10 provided on the plurality of steel pipes 1 and integrates the lower surface of the steel pipe 1 so that the lower steel pipe 1 It can serve to reinforce what is happening. When the shear reinforcement plate 10 is installed on the lower lid plate 13 by welding or the like, a plurality of shear reinforcement plates 10 are formed on the lower side of the steel pipe 1, It may be easy to install the apparatus.

5 to 6, the tie rod bolt a1 is passed through between the steel pipe 1 and the steel pipe 1 to enhance the integrity of the steel pipe 1 and the steel pipe 1, . The tie rod bol (a1) means a steel bar connecting the steel pipe 1 to the steel pipe 1 in order to support the steel pipe 1, and it can be seen from FIG. 6 that one end thereof is fastened with a nut.

Since the composite load of the static load and the dynamic load is routinely applied by the moving load of the vehicle of the present invention, it is very important to support the lid plate 2 while the multi-row steel pipe 1 behaves integrally and integrally . Therefore, if the tie rod bolt a1 is fastened between the steel pipe 1 and the steel pipe 1 to integrate the steel pipe as in the present invention, the support function and structural stability of the steel pipe 1 can be greatly improved .

On the other hand, as shown in Figs. 7 to 8, in the present invention, concrete can be filled in the steel pipe 1. Fig. As described above, the steel pipe 1 of the present invention is important in that it supports the flat plate, but at the same time, it can also serve as a strut bracket supporting the underground earth retaining wall. In this case, the compressive load of the steel pipe 1, Buckling strength can be the basis of design. However, the steel pipe (1) of the present invention supporting the flat plate receives a vertical load due to a vehicle or the like and a lateral load through the earth retaining wall at the same time, and the fracture due to the compressive load is generally more brittle than the fracture due to the flexural load. Is needed. For this purpose, in the present invention, the performance of the steel pipe (1) against the compression load can be ensured by filling concrete in the steel pipe (1).

While the present invention has been particularly shown and described with reference to certain preferred embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It should be understood that various changes and modifications may be made by those skilled in the art. In addition, the accompanying drawings are shown not to scale but to partially enlarge and reduce in order to explain the technical idea of the present invention.

Particularly, not only each of the embodiments of FIGS. 1 to 8 of the present invention but also arbitrary combinations of these embodiments are included in the protection scope of the present invention.

1: Steel pipe
2: Cover plate
3: Connection plate
4, 5: Stiffening plate
10: Shear reinforcement plate
11: Straight line
12: Curvature portion
13: Lower cover plate
a: Rivet bolt
a1: Tie rod bolt
b: fastening hole
c: Nut

Claims

A cover plate provided on the upper surface of a road excavated so that a vehicle or a person can pass through,
A plurality of steel tubes arranged in parallel to support the cover plate,
A stiffening plate that is in contact with the steel pipe at right and left sides of the steel pipe and is installed side by side with the steel pipe,
A connecting plate connecting between the cover plate and the stiffening plate located on the outer side of the stiffening plate,
And a shear reinforcement plate which is engageable with the steel pipe so as to cover the semicircular parts of the circumference of the steel pipe at the upper and lower portions of the steel pipe and the both ends of which are in contact with the stiffening plate at the upper and lower sides.

The method according to claim 1,
The connecting plate and the stiffening plate are connected by a rivet bolt,
And the reinforcing plate is connected to the bending reinforcing plate by a fastening bolt.

The method according to claim 1,
Wherein a lower cover plate is provided along the plurality of rows of shear reinforcement plates on the lower surface of the steel pipe opposite to the cover plate.

The method according to claim 1,
And a tie rod bolt is passed through between the steel pipe and the steel pipe to be fastened.

The method according to claim 1,
And the concrete is filled in the steel pipe.