JPH06146215A - Assembled bridge like arch bridge - Google Patents

Abstract

PURPOSE:To improve construction property by building framework consisting of steel member and concrete beam member on both banks and attaching concrete panel on which natural stones or imitation stones are attached on its outer periphery. CONSTITUTION:A foundation 9 is constructed by cast-in-place concrete on both sides, and a foundation panel 10 on which natural stones 11 are attached in the parts exposed to the outside is attached. Next, a framework consisting of concrete beam such as iron or PC beam is constructed across the foundation 9. Then, after a side panel 2 on which natural stones attached on the concrete panel are attached is attached on the side and upper and lower sections of the framework, a handrail 8 made of natural stones is mounted. Imitation stone concrete panel may be used instead of natural stone concrete panel. Consequently, it is possible to build the bridge without relying on professional stone mason, ensure safety sufficiently as regards to construction, shorten construction term by unitizing members at the factory, and keep the same appearance as the conventional bridge.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bridge constructed in a place where landscape is particularly important, such as a park or a scenic spot, and more particularly to a new spectacle bridge-like assembled bridge having the appearance of a spectacle bridge that has been built since ancient times. It is a thing.

[0002]

2. Description of the Related Art Conventionally, a spectacle bridge is constructed by a stone technician who specializes in spectacle bridges. It is assembled by staking stones from the stone part of the arch-shaped bottom, and stones are gradually piled up on the arch. It is structurally stable in a well-balanced state.

The conventional eyeglass bridge construction procedure is as follows. Assemble the arch-shaped temporary frame at the bottom of the spectacle bridge. The stones are stacked along the arch-shaped temporary frame from the bottom to the top one by one, and finally the key stones (the uppermost step in the center of the stones) are driven into a wedge shape to stabilize the entire stones. The stones for the side wall and the stones inside are also piled up to the top. Laying stones on the floor slab and installing ground stones and balustrades if necessary. Finally, the arch-shaped temporary frame is removed and completed.

[0004]

The construction of the above-mentioned eyeglass bridge requires the presence of a specialized stone mason, and construction is also required to be complete from a structural point of view. Further, since the temporary frame is assembled on site and the stone material is processed according to the shape and function of each part, it is common that the construction period is long and the cost is excessive.

However, the number one problem is the lack of specialized masons. The reason for this is that the work content is heavy labor for handling heavy stone materials, and requires precise processing, and due to structural requirements, perfect construction is required with high technology. Furthermore, due to the introduction of modern bridge construction technology from the West during the Meiji era due to the effects of civilization, structural insecurity remained and many specialized masons were required, and it took a long time and excessive cost. The construction of Ishigumi Meganebashi, which is a conventional site of, has declined, and the number of stone craftsmen has decreased sharply. At present, it is said that there are almost no stone craftsmen who can build spectacle bridges using the ancient construction method, and the actual situation is that spectacle bridges using the conventional construction method have not been constructed.

The present invention responds to the need for construction in recent years as a facility that is in harmony with nature, because the glasses bridge that is difficult to build due to the above-mentioned circumstances places importance on the landscape along with the changes of the times. To do.

[0007]

The present invention is an eyeglass bridge-like assembled bridge characterized in that a natural stone material-attached concrete panel or a pseudo-stone concrete panel is attached to the outer periphery of a framework of a structural material spanning both banks.

As structural materials, steel materials such as H-section steel, concrete girder materials such as PC girders and RC girders, and combinations thereof are used. The natural stone laminated concrete panel and the pseudo stone concrete panel can be manufactured by a known technique.

[0009]

In the present invention, a concrete plate having natural stones installed on the surface portion, which has the same appearance as a local construction from ancient times, or a pseudo stone concrete plate having a masonry finish on the surface, is attached. It is almost the same as the assembly bridge.

The skeleton of the structural material can be prepared at the factory, made into a unit, and then carried into the site and assembled. Natural stone laminated concrete panels and pseudo stone concrete panels are also manufactured as pre-cast concrete panel secondary products with natural stone and pseudo stone pre cast concrete panel secondary products with masonry patterns in advance at the factory, and it is sufficient to perform the work of attaching them on site. , Can be built in a very short time.

Further, since the frame is made of the structural material and the inside is hollow, it is lightweight and reliable in strength.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the drawings showing the embodiments. 1 is a front view of an assembly bridge 1 which is an embodiment of the present invention, FIG. 2 is a plan view, FIG. 3 is a sectional view taken along line AA of FIG. 1, and FIG. 4 is a sectional view taken along line BB of FIG. 5 is a schematic front view of the skeleton of the assembly bridge 1, and FIG. 6 is a sectional view taken along the line CC of FIG.

The assembling bridge 1 is a frame 2 made of steel structural material.
0, side panel 2, top panel 3, bottom panel 4, balustrade 8, foundation 9, etc.

A foundation 9 is prepared in advance by using cast-in-place concrete on both sides of the bridge. A base panel 10 having a natural stone 11 attached to the surface is attached to the exposed portion of the base 9.

The skeleton 20 using a steel frame as a structural material is
It is laid over the foundation 9 on both banks. Skeleton 20
Is formed by connecting two factory-made units as shown in FIGS. 5 and 6, and is completed by bringing these two units into the field and bolting them together. This skeleton 20
Is roughly divided into a side portion 21 and a connecting member 22, and has a structure in which both side portions assembled with H-shaped steel in the shape of FIG. 5 are connected with an H-shaped or U-shaped steel connecting member 22. .

A lower side panel 4, both side panels 2 and an upper top panel 3 are attached to the periphery of a skeleton 10 installed on a foundation 9, and the skeleton and the inside are completely covered by each panel. It is invisible. As shown in FIG. 4, etc., the side panel 2 is provided with natural stones 5 and the upper panel 3
Since natural stones 6 are attached to the bottom panel 4 and natural stones 7 are attached to the bottom panel 4, the appearance is almost the same as the masonry bridge made of stone. Finally, the balustrade 8 of natural stone is attached and completed.

The side panel 2, the top panel 3, the bottom panel 4, and the foundation panel 10 are manufactured in advance as concrete secondary products in the factory. In other words, concrete is poured into a frame of a panel with natural stone laid on the bottom and cured to produce a concrete panel with natural stone attached. Alternatively, the concrete panel may be manufactured first and natural stone may be attached to the concrete panel with an adhesive or the like.
Each panel and balustrade are attached with bolts not shown.

In this embodiment, the natural stone-clad concrete panel is used, but a pseudo-stone concrete panel can be used to obtain almost the same appearance. The pseudo stone concrete panel is manufactured by a known means such as attaching a shaped resin to the inner surface of the mold and pouring the concrete into the mold to cure it. Further, in the present embodiment, the foundation is cast concrete, but it is also possible to use precast concrete as a matter of course. For bridges where the bottom is almost invisible, omit the bottom panel,
The structural material may be exposed.

[0019]

The present invention does not require a mason who specializes in spectacle bridges, and uses steel materials such as H-section steel and concrete girders such as PC girders and RC girders as structural materials. It can be secured, and it is not necessary to assemble a temporary frame on the arched bottom part. Also, in the conventional construction method, the masonry part, which is the most time-consuming, is a precast panel secondary product that is prefabricated with natural stone in the factory or a pseudo stone precast panel secondary product with a masonry pattern. It In terms of appearance, it can be no different from the site construction method from ancient times.

[Brief description of drawings]

FIG. 1 is a front view of an assembly bridge 1 according to an embodiment of the present invention.

2 is a plan view of the assembly bridge 1. FIG.

3 is a cross-sectional view taken along the line AA of FIG.

FIG. 4 is a sectional view taken along line BB in FIG.

FIG. 5 is a schematic front view of the skeleton of the assembly bridge 1.

6 is a cross-sectional view taken along the line CC of FIG.

[Explanation of symbols]

 1 Assembly Bridge 2 Side Panel 3 Top Panel 4 Bottom Panel 5 Natural Stones 6 Natural Stones 7 Natural Stones 8 Railings 9 Foundations 10 Foundation Panels 11 Natural Stones 20 Frames 21 Sides 22 Connecting Materials

Claims (1)

[Claims] 1. A spectacle bridge-like assembled bridge characterized in that a natural stone material-attached concrete panel or a pseudo-stone concrete panel is attached to the outer periphery of a framework of structural material spanning both banks.