The present invention relates to a fixed roadway for a track vehicle that includes a rail that is supported by a civil structure of a concrete structure or a concrete composite structure and that is fixed to a sleeper.
The construction of a fixed roadway laid on a civil engineering building such as a bridge conventionally requires a relatively large amount of work. The legislation on architectural design of fixed roads requires sleepers to be provided on the superstructure. This superstructure board is placed on a raised board for transmitting horizontal forces. This raised plate is further provided on the protective concrete plate. At least one side of the protective concrete plate is in contact with the edge of the brim of the bridge structure in order to transmit the lateral force from the fixed roadway to the bridge support. Furthermore, the legislation requires that an insulating layer be present under the protective concrete board. Due to the presence of various layers on the fixed road of such a bridge, the total thickness of the fixed road may be 80 cm or more. Therefore, such a fixed road requires troublesome construction work. The construction cost will be relatively high.
Patent Document 1 has already proposed a civil engineering building such as a bridge made of a fixed roadway in which a sleeper is provided on a penetrating support rib or individual ridges arranged in a row. In the construction, first, a floor board of a bridge civil engineering building is manufactured, and then a second fixed road floor board is placed on the concrete. In a separate work process, support ribs or ridges are placed on the upper floorboard. The sleepers for the rails are fixed to these support ribs or ridges. This structure can achieve a certain simplification, but such civil engineering buildings will still require a great deal of construction cost, as long as they must be constructed on site.
SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to propose a fixed road for a track vehicle in the manner described at the beginning so that the construction procedure is simple and the construction cost can be reduced.
In order to solve this problem, according to the present invention, a sleeper is embedded in a construction concrete or a protective concrete layer of a civil engineering building and is cast in concrete, or is constructed concrete or It is proposed to be placed directly on the protective concrete layer.
According to the present invention, the fixed roadway in which sleepers are cast is constructed simultaneously with the construction of the civil engineering building. Unlike the known fixed roadway, the process of installing the roadway floor plate later is omitted, so the material is reduced and the construction cost is also reduced.
In the present invention, the underlying recognition is that the construction concrete of civil engineering buildings or the protective concrete layer present in civil engineering buildings can simultaneously function as roadway floor boards. The sleepers can also be placed on a layer of construction concrete or protective concrete. In that way, the constructed concrete or protective concrete layer will meet all the structural requirements for a fixed roadway deck. Thus, the structure of the present invention is particularly simple to build and results in savings in material consumption, since another roadway floor or superstructure board or another work step can be omitted.
It is particularly preferred that the fixed road sleepers of the present invention be monoblock or multi-block sleepers. Most of the sleepers used in the fixed roadway of the present invention are of these types. The sleeper blocks are connected to each other via lattice beams, and concrete is placed at the same time as the construction of the civil engineering building, so a monolithic fixed roadway is born.
The fixed roadway of this invention can be comprised so that it may have a reinforcing member of the vertical direction or horizontal direction, or those both directions. The positions of these reinforcing members and the number of reinforcing bars can be optimized because the reinforcing members conventionally used in civil engineering buildings can also be used for fixed roadways.
In the case of civil engineering structures constructed as bridges, the bridge can be structured with at least one edge brim and / or cable groove provided on the side of the sleeper to absorb lateral forces. The force acting in the lateral direction of the roadway is transmitted to the support structure of the civil engineering building through the edge side collar or cable groove. Thereby, extra complicated components such as ridges or support ribs can be omitted. This civil engineering building can also be a concrete floor board with a foundation.
Since the sleeper of the fixed roadway of the present invention is embedded in the concrete protection layer of the bridge and cast concrete, this protective concrete layer can also function as a bridge seal layer at the same time, so the addition of the bridge deck The insulating layer can be omitted.
The fixed roadway of the present invention can also be used in civil engineering buildings constructed as tunnels, and these sleepers are cast directly into a layer of balance concrete or compensation concrete. Even in this case, a separately manufactured roadway floor plate with additional sleepers can be omitted, so that the required inner diameter of the tunnel hole is reduced.
Other advantages and details of the invention are explained by way of example with reference to the drawings. The drawings are conceptual diagrams and are as follows.
FIG. 1 is a first embodiment of a perspective view of a fixed roadway of the present invention mounted on a bridge structure.
FIG. 2 A second embodiment of the fixed roadway of the present invention in which sleepers are cast into a protective concrete layer. 3 is an enlarged cutaway view of only a portion of the fixed roadway of FIG. 2 having a protective concrete layer.
FIG. 4 shows a third embodiment of the present invention having a fixed roadway laid in the tunnel.
FIG. 5 shows a fourth embodiment of the present invention.
FIG. 1 shows a perspective cut-away view of a bridge structure 1 having a fixed roadway 2. The fixed road 2 is formed integrally with the support structure 3 of the bridge structure 1. Cable grooves 4 and edge side flanges 5 are provided on both sides of the fixed carriageway 2. The cable groove 4 and the edge collar 5 serve to transmit the lateral force from the fixed road 2 to the support structure 3.
The fixed road 2 includes a two-block sleeper 6 that supports a rail 7. In the embodiment shown, the sleeper 6 is embedded directly in the building concrete of the support structure 3 and is cast into the concrete. There is no separate upper floor or roadway floor. The reinforcing bars of the longitudinal reinforcing member 8 are visible on the cut surface. In addition, there are lateral reinforcing bars laid across the rebar.
FIG. 2 shows a second embodiment. The components of the second embodiment that match the components of the first embodiment have the same figure number.
Unlike the first embodiment, in the bridge structure 9 shown in the second embodiment, sleepers 6 are embedded, and a protective concrete layer 10 on which concrete is placed is provided on the support structure 11 of the bridge structure 9. In producing the bridge structure 9, the support structure 11 is first installed. Next, the cable groove 4 and the edge side collar 5 are assembled. The sleepers 6 are inserted into the pan-like spaces between the cable grooves 4 or the edge flanges 5 and are positioned accurately. A reinforcing member 8 is also provided. The production of the protective concrete layer 10 is performed by pouring concrete. The protective concrete layer 10 also serves as a bridge insulating layer.
FIG. 3 shows an enlarged cutaway view including only a part of the protective concrete layer on the fixed road shown in FIG.
FIG. 3 shows a two-block sleeper 6 before casting. The two sleeper blocks 12, 13 are connected to each other via a lattice beam 14, which also serves as a lateral reinforcing member. Another reinforcing bar 15 is disposed between the lattice beams 14 in the lateral direction. A longitudinal reinforcing member 8 is also arranged. After positioning and positioning of the sleeper 6 and the reinforcing member, concrete injection is performed so that only the upper part 16 of the two-block sleeper 6 protrudes from the concrete layer.
FIG. 4 shows a cutaway view of a third embodiment of a fixed road constructed in a tunnel. The two-block sleeper 6 is directly embedded in the built concrete 16 in the tunnel and placed in the concrete. That is, the fixed road 17 is integrally coupled to the tunnel construction concrete 16. In this cut view, the reinforcing bars of the reinforcing members 18 in the vertical direction are visible. Since there are no additional or separate fixed roadway floor plates, the tunnel cross-sectional diameter can be kept small.
In laying the fixed roadway 17 in the tunnel, first, the two-block sleeper 6 is positioned, the position is adjusted, and then the construction concrete 16 in the tunnel is injected.
FIG. 5 shows another embodiment of a fixed roadway in a tunnel.
In this embodiment, unlike the embodiment shown in FIG. 4, there is a balanced concrete layer 19 in which the sleepers 6 are embedded. Under this balanced concrete layer 19, there is a circular piece-like concrete layer 20. With this structure, the force generated when a fixed roadway is used is directly guided to the tunnel base.
1st Example by the perspective view of the fixed roadway of this invention mounted on a bridge structure.
The 2nd Example of the fixed roadway of this invention by which the sleeper is cast by the protective concrete layer.
FIG. 3 is an enlarged cutaway view of only a portion of the fixed roadway of FIG. 2 having a protective concrete layer.
A third embodiment of the present invention having a fixed roadway laid in a tunnel.
4 shows a fourth embodiment of the present invention.
Explanation of symbols
DESCRIPTION OF SYMBOLS 1 Bridge structure 2 Fixed roadway 3 Support structure 4 Cable groove 5 Edge side collar 6 Sleeper 7 Rail 8 Reinforcement member 9 Bridge structure 10 Protective concrete 11 Support structure 12, 13 Sleeper block 14 Grid beam 15 Reinforcement reinforcing bar 16 Block upper part ( (Fig. 3)
16 Construction concrete in tunnel 17 Fixed road