KR20030064363A - Bridge Railing System for Cellular Tube Decks - Google Patents

Abstract

PURPOSE: A handrail installation structure for a floor plate having a tube-shaped section is provided to construct and dismantle easily by simplifying an installation structure. CONSTITUTION: In the handrail installation structure for a floor plate having a tube-shaped section, a handrail member(10) is installed on the lateral section of a floor plate(1), and provided with a vertical post member(11) installed vertically to protect vehicles and a horizontal insertion member connected with the vertical post member(11) and interposed to the tube-shaped inside of the floor plate(1). While the horizontal insertion member is interposed to the floor plate(1), a fastener(13) is fastened through the floor plate(1) and the horizontal insertion member, so that the handrail member(10) is installed on the floor plate(1).

Description

Bridge Railing System for Cellular Tube Decks with Tubular Shape

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a railing installation structure for a floor plate having a tubular cross section, and more particularly, to a bridge deck of a lightweight material having a tubular cross section, such as a precast fiber reinforced composite (FRP) bridge deck. It relates to a high-strength and lightweight handrail installation structure that can be installed and used.

An FRP bottom plate having a cross section in which a polygonal tube shape such as a trapezoid or a square in the transverse direction is combined has attracted attention as a bottom plate of a bridge. On the other hand, a railing (protective wall) is provided on the outer side of the bottom plate to protect the vehicle or the like that runs on the bottom plate of the bridge. In general, the railings of bridges are constructed of reinforced concrete. In the case of bridge decks that are constructed of lightweight FRP decks, railings made of reinforced concretes have been installed.

Figure 4 is a schematic perspective view showing a conventional railing structure installed in the FRP bottom plate, when the reinforced concrete handrail 100 to the FRP bottom plate 110, reinforced concrete handrail 100 and FRP bottom plate For the connection of the 110, the reinforcement 101 is to be installed inside the handrail 100 to extend to the inside of the FRP bottom plate 110, so it must have a separate connection structure, such as construction is complicated and construction costs It takes a lot of disadvantages.

In addition, the FRP sole plate 110 is lightweight, but the reinforced concrete handrail 100 has a large self-weight, so when the reinforced concrete handrail 100 is installed on the FRP sole plate 110, the weight of the bridge sole plate is increased. There is this.

On the other hand, the railing of the bridge may be damaged or damaged by a collision of the vehicle, etc., the conventional railing structure has an integral structure, there is a limit that the partial replacement or repair of only the corresponding part is not easy when damage or breakage occurs.

Therefore, there is an urgent need for a lightweight, easy-to-install handrail structure suitable for application to a bottom plate having a tubular cross section such as an FRP floor plate. Although the above described the FRP bottom plate by way of example, the necessity of the new structure railing as described above is common to not only the FRP bottom plate, but also the bottom plate of various materials having a tubular cross section similar to the FRP bottom plate.

The present invention was developed in order to meet the above demands, and has an object of providing a handrail installation structure suitable for application to a bridge deck having a tubular cross section, such as FRP deck, having excellent light weight and workability.

Figure 1a and Figure 1b is a schematic view of the handrail mounting structure of the present invention using a post-integrated handrail member according to the present invention, Figure 1a is a shape before installation and Figure 1b is a shape after installation.

Figures 2a to 2d is a schematic view of one modified embodiment of the handrail mounting structure according to the present invention using a conventional conventional handrail post product as a post member, Figure 2a is a state before the handrail member is coupled to the bottom plate (1) Figure 2b is an exploded perspective view shown, Figure 2b is a combined perspective view showing a state in which the handrail member is coupled to the bottom plate (1). FIG. 2C is an exploded perspective view of a modified embodiment of the embodiment shown in FIG. 2A, with a view similar to FIG. 2A, and FIG. 2D is a combined perspective view of the modified embodiment shown in FIG. 2C.

3 is a cross-sectional view of an embodiment further comprising a sidewalk block in addition to the embodiment shown in FIGS. 2A and 2B.

Figure 4 is a schematic perspective view showing a conventional railing structure installed on the FRP bottom plate.

<Explanation of symbols for the main parts of the drawings>

1: bottom plate 2: sidewalk block

10: handrail member 11, 21: post member

12, 22: horizontal insertion member 13: through fastening member

In the present invention, in order to achieve the above object, as a handrail installation structure is installed on the bottom plate having a tubular cross-section, the handrail member is installed on the side end surface of the bottom plate, the handrail member is a vertical post member is installed vertically And a horizontal insertion member connected integrally with the vertical post member and inserted into the tubular interior of the bottom plate; The horizontal insertion member is inserted into the tubular interior of the bottom plate by a predetermined length through the side surface of the bottom plate; Handrail installation structure, characterized in that the handrail member is installed on the bottom plate as the rod-like through fastening member is penetrated through the bottom plate and the horizontal insertion member at the same time while the horizontal insertion member is inserted into the bottom plate. Is provided.

In addition, in the present invention, as a modified embodiment of the above embodiment, the post member of the handrail member is manufactured separately from the horizontal insertion member, and the through-fastening member may be installed downward through the lower end of the separately manufactured post member Through-holes are formed; The post member is installed on the side end of the bottom plate, the handrail mounting structure is provided by the handrail fastening member is fastened through the through-hole, the bottom plate and the horizontal insertion member of the post member is installed. do.

In the above embodiment, between the lower end of the post member and the top surface of the bottom plate may be further provided with a sidewalk block made of a fiber reinforced composite material.

In addition, in the present invention, as a modified embodiment, the post member of the handrail member is manufactured to be separated from the horizontal insertion member, the through-hole is formed in the lower end of the separated produced post member through-hole fastening member can be installed downward through And; The horizontal insertion member has an insertion hole fastened to the post member at an outer side of the bottom plate, and an insertion hole for coupling with the bottom plate; In the state where the horizontal insertion member is inserted into the bottom plate, the insertion hole for fastening the post member is positioned outside the bottom plate so that the through fastening member is inserted into the through hole and the insertion hole so as to pass through the post member and the horizontal insertion member. Whereby the post member is installed on the outside of the bottom plate; The insertion hole of the horizontal insertion member is located inside the bottom plate so that the through fastening member is inserted into the insertion hole and fastened so as to pass through the bottom plate and the horizontal insertion member, so that the horizontal insertion member is integrated with the bottom plate. A railing mounting structure is provided.

In addition, in the embodiments of the present invention, the horizontal insertion member is made of a hollow member and the hollow portion may be filled with a filler for vibration reduction or strength enhancement.

Next, the configuration of the present invention will be described by referring to specific embodiments of the present invention with reference to the accompanying drawings. In the following embodiments, the configuration of the present invention was described by illustrating the FRP bottom plate as a bottom plate having a tubular cross section, which is for convenience of description and the bottom plate to which the present invention is applied is not limited to the FRP bottom plate, It is made of various materials such as aluminum and can be applied to all kinds of bottom plates having a tubular cross section similar to FRP bottom plates. In addition, in the embodiments described below, the structure of the present invention has been described by exemplifying the bridge bottom plate, but the bottom plate to which the present invention is applied is not limited to the bridge bottom plate which is an upper structure of the bridge, and is safe for vehicles, people, and the like. This also applies to all types of decks that require handrail installation.

1A and 1B show a handrail mounting structure of the present invention using a post-integrated handrail member 10. FIG. 1A is a shape before installation and FIG. 1B is a shape after installation. 1A and 1B, the handrail member 10 on the left side is shown in a state in which one side is removed for convenience so that the interior made of hollow is visible.

The post-integrated handrail member 10 is connected to the vertical post member 11 and the vertical post member 11 that are vertically installed to protect the vehicle, etc., and is formed inside the tubular body formed on the FRP bottom plate 1. A horizontal insertion member 12 to be inserted is provided.

The post member 11 and the horizontal insertion member 12 are preferably formed integrally, and are preferably made of a corrosion resistant material, for example, hot-dip galvanized steel, aluminum, or FRP. However, it is not limited to the above material and may be manufactured by a variety of materials handrail member (10).

In addition, the post-integrated handrail member 10 may be manufactured in a hollow shape, as shown in the figure, the hollow inside, optionally, the hollow inside of the handrail member 10, such as non-shrink mortar, polyurethane, etc. It may also be filled with a filler (not shown).

The horizontal insertion member 12 has a cross-sectional size and shape corresponding to the tubular inner shape formed in the FRP bottom plate 1, the horizontal insertion member 12 is the FRP bottom through the side cross-section of the FRP bottom plate (1) It is inserted in the tubular interior of the plate 1 with a predetermined length. In the state where the horizontal insertion member 12 is inserted into the FRP bottom plate 1, a rod-like through fastening member 13, such as an anchor bolt, is used for the FRP bottom plate 1 and the horizontal insertion member 12. At the same time through and firmly fastened.

In the through fastening of the through fastening member 13, after the protective cover plate 14 is installed on the upper and / or lower surface of the FRP bottom plate 1 to protect the FRP bottom plate 1, the through fastening member is installed. The member 13 can also be fastened. The post-integrated handrail member 10 of the present invention, as shown in Figure 1b, is disposed at a predetermined interval in the longitudinal direction of the FRP bottom plate 1, the post member 11 of the handrail member 10 is a vehicle Guard rail 15 to prevent the fall of the back is provided by the fastening member (16).

The material of the guardrail 15 is not particularly limited, but it is preferable to manufacture the guardrail as an FRP member. This is because the guardine made of the FRP member is lightweight, has excellent durability and corrosion resistance, and is easy to produce color, thereby achieving a beautiful appearance. In addition, the guard rail made of the FRP member can reduce the damage to the vehicle because it is elastic behavior when moving out of the vehicle, has the advantage that can be manufactured and installed to a considerable length in the field even in the case of long bridges without a seam.

The post-integrated handrail member 10 of the present invention described above has the horizontal insert member 12 inserted therein through the side cross-section of the FRP bottom plate 1, so that the post member 11 is formed of the FRP bottom plate 1. It is located outside. Therefore, even if the handrail is installed, the effective area of the bridge deck is not eroded, thereby increasing the efficiency of the bridge deck.

In addition, since the horizontal insertion member 12 is inserted through the side end surface of the FRP bottom plate 1, and has a simple configuration for penetrating the through-fastening member 13, the construction is easy and thus has excellent workability. Further, since the handrail member 10 is installed by a mechanical connection in which the through fastening member 13 penetrates the horizontal insertion member 12 and the FRP bottom plate 1 at the same time, the handrail member 10 and the FRP are installed. Since the bottom plate 1 is firmly connected and the through fastening member 13 can be dismantled, it is easy to partially replace it when the handrail member 10 is damaged or damaged due to a collision of the vehicle. have.

Next, a modified embodiment of the present invention will be described with reference to FIGS. 2 and 3.

Figure 2a and Figure 2b is a schematic view of a modified embodiment of the handrail mounting structure according to the present invention, Figure 2a is an exploded perspective view showing a state before the handrail member is coupled to the FRP base plate 1, Figure 2b is a handrail member Is a perspective view showing a state coupled to the FRP bottom plate (1). 2A and 2B, the horizontal insertion member described later in the handrail member on the left is shown in a state in which one side is removed for convenience so that the interior made of hollow is visible.

2A and 2B show an example using a conventional conventional railing post product as a post member. 1A and 1B, the post member 11 is integrated with the horizontal insertion member 12 at the end of the horizontal insertion member 12 in the embodiment shown in FIGS. 2A and 2B. In the present embodiment, the horizontal insertion member and the post member are manufactured separately and have a structure that is integrally coupled to each other in the FRP bottom plate.

Specifically, the handrail member according to the present embodiment has a post member 21 installed perpendicularly to the FRP bottom plate 1 and a cross-sectional shape corresponding to the tubular inner cross section of the FRP bottom plate 1. A horizontal insertion member 22 is inserted into the FRP bottom plate 1 at a predetermined depth. The horizontal insertion member 22 is made of a corrosion-resistant material as in the case of the embodiment described above with reference to Figures 1a and 1b, in the form of a hollow (or not shown) filled with a filler (not shown) Can be configured.

Meanwhile, in the present embodiment, the vertical post member 21 is manufactured separately from the horizontal insertion member 22, and a predetermined space is formed at the lower end thereof, and the through fastening member (to be described later) on the end face of the lower end portion thereof (described later). A through hole through which 13) is inserted is formed. As the post member 21, a commercially available product can be used.

After the horizontal insertion member 22 is inserted into the inside of the FRP bottom plate 1 through the side end surface of the FRP bottom plate 1, the post member 21 perpendicular to the upper end surface of the FRP bottom plate 1. Will be located. In the state where the horizontal insertion member 22 and the post member 21 are located in this way, a through-hole formed in a rod-like through fastening member 13 such as an anchor bolt on the lower end surface of the post member 21 and the FRP bottom plate ( The upper and lower surfaces of 1) and the horizontal insertion member 22 are vertically installed and fastened to each other. When fixing the lower end of the penetrating member 13 inserted therethrough with a nut or the like, the penetrating member 13 may be installed after the protective cover plate 14 is installed to protect the lower surface of the FRP bottom plate 1 as necessary. Can be fastened and fixed.

The post member 21 is installed at a predetermined interval in the longitudinal direction of the bottom plate, when the installation and fixing of the post member 21 is completed, the post member 21, the guard rail 15 for preventing the fall of the vehicle, etc. This is installed. When the horizontal insertion member 22 is made of a hollow member, it is preferable to attach and finish the closing plate 23 to the open side of the horizontal insertion member 22.

On the other hand, Figure 2c is a view similar to Figure 2a shows a variant of the embodiment shown in Figure 2a. 2D is a combined perspective view of the variant embodiment shown in FIG. 2C. As shown in FIGS. 2C and 2D, if necessary, the through member 24 for coupling the post member 21 is positioned outside the FRP bottom plate 1, and then the post member 21 is disposed in the through hole. The post member 21 may be positioned outside the FRP bottom plate 1 as shown in FIG. 2A by being coupled to only the 24. In this case, in addition to the through-hole 24 for coupling the post member 21, an additional through-hole 24 'is formed in the horizontal inserting member 22 and the horizontal inserting member 22 of the FRP bottom plate 1 is formed. After insertion into the hollow, the additional through-fastening member 13 'is penetrated through the additional through-hole 24', the FRP bottom plate 1, and the horizontal inserting member 22, thereby horizontally inserting the member 22. To be integrally combined with the FRP bottom plate (1).

In the above embodiment, since the post member 21 is located outside the FRP bottom plate 1 as shown in the embodiment shown in FIG. 2A, the FRP bottom plate 1 is not encroached on the area of the FRP bottom plate 1. You can make the most of the cross section.

This embodiment also has the advantage that the installation structure is simple and excellent construction, and is installed through the mechanical connection with the bottom plate not only excellent connection robustness, but also can easily replace the damaged part in the event of damage to the handrail member. have. In addition to this advantage, the present embodiment also has the advantage that a ready-made product that has been used as a post member can be utilized.

Next, FIG. 3 shows an embodiment in which the embodiment shown in FIGS. 2A and 2B is modified. The embodiment shown in FIG. 3 further includes a sidewalk block in addition to the embodiment shown in FIGS. 2A and 2B. It is equipped.

That is, when the sidewalk or curbstone is required on the upper part of the bridge, the post block 21 having a predetermined width is positioned between the post member 21 and the FRP bottom plate 1, and then the through fastening member 13 is placed on the sidewalk block ( 2) is also coupled to the sidewalk block (1) integrally with the bottom plate (1) by fastening to pass through. Like the bottom plate 1, the sidewalk block 2 may be manufactured using a lightweight material such as FRP, aluminum, or the like, and may be filled with a filler such as polyurethane in the hollow form. When the sidewalk block 2 is made of the same material as the FRP bottom plate 1, the sidewalk block 2 and the bottom plate 1 may be connected by a chemical method such as using an adhesive. On the other hand, when necessary to meet the height standard of the railings, a plurality of the sidewalk blocks 2 may be stacked and used.

According to the above embodiment, in installing the sidewalk block and / or curbstone, there is an advantage that there is little increase in the weight of the installation because it uses a lightweight member having a tubular cross section like the FRP member. In addition, there is an advantage that can be easily replaced when the block is damaged and easy to install.

As described above, the post-integrated handrail member 10 of the present invention, since the post member 11 is located outside the bottom plate, there is no effective area encroachment of the bottom plate due to the handrail installation. In particular, in the case of bridge deck, since there is no encroachment of the effective area of the bottom plate according to the railing installation, the bridge bottom plate can be efficiently used.

In addition, it is easy to install and dismantle because the installation structure is simple. Therefore, when the handrail member 10 is damaged or broken due to the collision of the vehicle, there is an advantage that it is easy to partially replace it.

Furthermore, since the handrail member 10 is coupled to the bottom plate 1 by a mechanical connection structure, the connection between the two is firm.

As shown in Figure 2a and 2b, the horizontal insertion member and the post member is manufactured separately from the handrail connecting structure that is integrally coupled to each other in the bottom plate in addition to the above-mentioned advantages in addition to the existing products used as a post member It also has the advantage of being available.

On the other hand, as shown in Figure 3, in the structure for installing the sidewalk block and / or curb using a lightweight member having a tubular cross section, such as the FRP member, there is almost no increase in its own weight due to installation of curb, etc. There is an additional advantage that it can be easily replaced in case of damage or breakage of the block and is easy to install.

Claims (6)

As a handrail installation structure installed on the bottom plate 1 having a tubular cross section, Handrail member 10 is installed on the side surface of the bottom plate (1), The handrail member 10 includes a vertical post member 11 installed vertically, and a horizontal insertion member 12 connected integrally with the vertical post member 11 and inserted into the tubular interior of the bottom plate 1. Doing it; The horizontal insertion member (12) is inserted into the tubular interior of the bottom plate (1) by a predetermined length through the side cross section of the bottom plate (1); In the state where the horizontal insertion member 12 is inserted into the bottom plate 1, the rod-like through-fastening member 13 passes through the bottom plate 1 and the horizontal insertion member 12 at the same time and is fastened to the railing. Handrail mounting structure, characterized in that the member 10 is installed on the bottom plate (1). The method of claim 1, The post member of the handrail member is manufactured separately from the horizontal insertion member, The through-hole is formed in the lower end of the separated post member through-hole fastening member 13 can be installed through the downward; The post member is installed on the side end of the bottom plate 1, so that the through fastening member 13 is fastened through the through hole, the bottom plate 1 and the horizontal insertion member of the post member, so that the handrail member is attached to the bottom. Handrail mounting structure, characterized in that installed on the plate (1). The method of claim 2, Handrail installation structure, characterized in that the lightweight sidewalk block (2) is further provided between the lower end of the post member and the upper surface of the bottom plate (1). The method of claim 1, The post member of the handrail member is manufactured separately from the horizontal insertion member, The through-hole is formed in the lower end of the separated post member through-hole fastening member 13 can be installed through the downward; The horizontal insertion member has an insertion hole 24 fastened to the post member at an outer side of the bottom plate 1, and an insertion hole 24 'for coupling with the bottom plate 1; In the state where the horizontal insertion member is inserted into the bottom plate 1, the insertion hole 24 for fastening the post member is located outside the bottom plate 1 so that the through fastening member 13 is a post member and a horizontal insertion member. The post member is installed on the outside of the bottom plate 1 by being inserted into and fastened to the through hole and the insertion hole 24 so as to pass through; The insertion hole 24 'of the horizontal insertion member is positioned inside the bottom plate 1 such that the through fastening member 13' passes through the bottom plate 1 and the horizontal insertion member 24 '. Handrail installation structure characterized in that the horizontal insertion member is integral with the bottom plate (1) by being inserted into and fastened. The method according to any one of claims 1 to 4, The horizontal insertion member is made of a hollow, the handrail installation structure, characterized in that the filler is filled in the hollow portion. The method according to any one of claims 1 to 4, The bottom plate 1 is a railing installation structure, characterized in that made of fiber reinforced composite material.