JP2749807B2 - Mobile three-dimensional road - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a mobile three-dimensional road applied to replacement and repair work of bridge structural members such as bridges and elevated roads. [Prior art] Conventionally, in the replacement and repair work of bridge structural members such as bridges and elevated roads, construction sections are closed.
A circuit was installed to deal with this. In addition, when a conventional mobile three-dimensional road is used, the length of the road component unit is limited when moving, so that a work space exceeding the length of the road component unit cannot be formed, and the bridge structure is not provided. It could not be used for large-scale construction such as replacement of components. [Problems to be solved by the invention] Conventionally, repair work such as replacement of bridge structural members (bridge girder, floor plate, etc.) such as bridges and elevated roads has been carried out by installing a circuit in advance, but in recent years traffic Because of the increasing volume and the difficulty of installing circuits in urban areas,
There was a problem that caused road congestion. Furthermore, it is more difficult to install a circuit on a highway, and there is a problem that it is not possible to close a road on an elevated highway because of the heavy traffic. In addition, the conventional mobile multi-story road has a problem that it cannot cope with a construction area longer than the multi-story road constituent unit because the length of the movement is limited. An object of the present invention is to solve such a problem of the related art. [Means for Solving the Problems] The movable three-dimensional road according to the present invention is a movable three-dimensional road that can be installed on a bridge or a road, etc., and has a downward slope between the main bridge and both ends of the main bridge. The main bridge section is formed by connecting a plurality of three-dimensional road constituent units, and each of the plurality of three-dimensional road constituent units is provided with a support leg which can be flipped up. In addition, at both ends of the main bridge portion, support legs for supporting the main bridge portion, which can be lifted, are provided. [Operation] As described above, the present invention relates to a movable three-dimensional road that can be installed on a bridge or a road, and the like, and an approach section that is connected to both ends of the main bridge in a downwardly sloped manner. The main bridge is formed by connecting a plurality of three-dimensional road constituent units, and each of the plurality of three-dimensional road constituent units is provided with a support leg that can be lifted up, and both ends of the main bridge are provided at both ends of the main bridge. In addition, by providing another support leg that supports the main bridge that can be lifted,
Construction work over a wide area, such as replacement of bridge structural members,
This can be performed without stopping the vehicle, eliminating the need for installation of a circuit as in the related art, and forming a work space larger than the length of the three-dimensional road constituent unit. In addition, even when a three-dimensional road is installed or dismantled, if the road has two or more lanes, only one lane regulation is required, and it is not necessary to completely block traffic. Embodiment A mobile three-dimensional road as one embodiment of the present invention will be described with reference to FIGS. 1, 2 and 3, 1 is a three-dimensional road component unit constituting the main bridge, 2 is a three-dimensional road component unit constituting the approach portion, 3 is a main bridge support leg, and 4 and 4 ′. Indicates a support leg for a unit of a three-dimensional road unit, 5 indicates a straight box girder of a simple steel floor plate, 6 indicates a floor plate, 7 indicates an existing bridge, and 7 'indicates an existing bridge replacement part (construction part). In the main bridge section, a plurality of three-dimensional road constituent units 1 formed by a simple steel floor plate straight box girder 5 are arranged, these are connected by taper pins 21, and both ends of each of the three-dimensional road constituent units 1 are connected to a three-dimensional road constituent unit. A unit body supporting leg 4 'is provided so as to be able to be lifted up, and another main bridge supporting leg 3 which is able to be lifted up is provided at both ends as a whole. On the other hand, a three-dimensional road constituent unit supporting leg 4 is attached to the three-dimensional road constituent unit 2 constituting the approach portion. FIGS. 4 to 7 show the construction of the main bridge support leg 3 and the three-dimensional road constituent unit support leg 4 '. As shown in the figure, a main bridge support leg 3 for supporting the entire main bridge is attached to the main bridge, and the support leg 3 is formed by integrating a plurality of support legs in the width direction of the road as shown in FIG. It has a simplified structure, and is connected to a shaft 12 and an arm 14 mounted on a straight box girder 5 of a simple steel floor plate. A power cylinder 11 is provided in the straight box girder 5 as shown in FIG.
The output shaft is connected to the shaft 12 via the arm 13. By operating the power cylinder 11, the main bridge support leg 3 can be flipped up in the direction of the arrow around the shaft 12 as shown in FIG. The main bridge support leg grounding portion 3 'is connected to the main bridge support leg 3 via an uneven fitting structure as shown in FIGS. 5 and 6, and can be slid in the road width direction by the power cylinder 15. The support span can be adjusted according to the girder span of the existing bridge. Since the main bridge support leg grounding portion 3 'has a bogie bogie structure, the load of the main bridge support leg 3 can be distributed and supported. The three-dimensional road constituent unit supporting leg 4 'is mounted on a shaft 17 as shown in FIG.
Is transmitted to the shaft 17 via the arm 18 so that it can be flipped up in the direction of the arrow shown in FIG. Also, an arm is provided on each three-dimensional road constituent unit supporting leg 4 '.
The power cylinder 20 is attached via 33, and the operation of the power cylinder 20 allows the support leg 4 'to move in the width direction of the road. FIG. 8 shows a method of connecting the three-dimensional road constituent unit 1. Each of the three-dimensional road constituent unit bodies 1 to be connected is provided with concave and convex portions 30 and 31 having a tapered hole and engaging with each other, and a taper pin 21 operated by a power cylinder 29 in a state where the concave and convex portions 30 and 31 are engaged. By being inserted into the tapered holes, they are connected to each other. The connection is locked by inserting a key 22 for safety lock into the taper pin 21 by a driving machine (not shown). FIG. 9 shows an outline of the widened floorboard. The widened floor plate 24 is rotatably attached to the lower part of the floor plate 6 of the three-dimensional road constituent unit 1 via hinge pins 25, and is flipped up through an arm 26 by the operation of a power cylinder 27. Widened floorboard 24
The railing 10 attached to the end by the pin 34 is fixed to secure the road width of the main bridge. The arm 28 guides and supports the widened floor plate 24. FIGS. 10 to 17 show a procedure for installing a movable three-dimensional road. The three-dimensional road constituent units 1 and 2 of the main bridge portion and the approach portion constituting the movable three-dimensional road are mounted on the transport trailer 23 and transported onto the existing bridge 7 to be installed. After arriving at the site, the three-dimensional road unit 2 of the main bridge part is installed so as to straddle the existing bridge replacement part (construction part) 7 '. The three-dimensional road constituent units 1 are connected to each other by the tapered pins 21 as described above. (FIGS. 11 to 16) After the connection of the main bridge is completed, the support legs 4 'for the three-dimensional road constituent unit are flipped up to be supported by the main bridge support legs 3 at both ends of the main bridge. (No.
Fig. 17) In addition, a solid road component unit 1 at one end of the main bridge
The three-dimensional road constituent units 2 constituting the approach part are connected to each other to form a three-dimensional road. After the installation is completed, traffic of vehicles on the same three-dimensional road will be started. On a bridge or an expressway composed of two or more lanes, the movable three-dimensional road is installed with only one lane in which traffic is restricted, and there is no need to regulate the other lanes. [Effects of the Invention] According to the present invention, it is extremely difficult to install a circuit by repair work of bridge structural members of an elevated road, etc., in recent years, as traffic volume and road elevation in an urban area are increasing. It can eliminate the cause of road congestion,
In a bridge comprising a main bridge portion and approach portions continuously connected to both ends of the main bridge portion in a downward gradient, the main bridge portion is formed by connecting a plurality of three-dimensional road constituent units, and the plurality of three-dimensional road portions are formed. Each of the structural units is provided with a support leg that can be lifted, and at both ends of the main bridge portion, in addition to the support legs that support the main bridge portion that can be lifted, a large area such as replacement of bridge structural members is provided. Work can be performed without stopping vehicles, eliminating the need for installation of conventional circuits, as well as creating a work space larger than the length of the three-dimensional road component unit, and repairing large areas. Construction becomes possible, and the installation of a circuit according to the conventional method becomes unnecessary, and traffic can be passed without decreasing lanes, so that road congestion can be avoided. In addition, when installing and dismantling, roads with two or more lanes need only be restricted to one lane, and there is no need to completely block traffic.

BRIEF DESCRIPTION OF THE DRAWINGS FIGS. 1 to 17 show a movable three-dimensional road as an embodiment of the present invention, FIG. 1 is a side view, FIG. 2 is a plan view, and FIG.
The figure is a sectional view taken along the line III-III of FIG. 1, FIG. 4 is a side view of the main bridge, FIG. 5 is a sectional view taken along the line VV of FIG. 4, and FIG.
VI-VI sectional view, FIG. 7 is a VII-VII sectional view of FIG. 4, FIG.
Fig. 9 is a front view of a connecting device for a three-dimensional road constituent unit, Fig. 9 is a schematic view of a widened floor panel, and Figs. 1 ... three-dimensional road structural unit body 2 ... three-dimensional road structural unit body 3 ... main bridge support legs 4, 4 '... three-dimensional road structural unit body support legs 5 ... simple steel floor plate straight box girder 6 ... floor plate 7 …… Existing bridge 7 …… Existing bridge replacement section

Claims (1)

(57) [Claims] A movable three-dimensional road that can be installed on a bridge or a road, etc., with a main bridge part that forms a three-dimensional road, and an approach part that is connected to both ends of the main bridge in a downwardly sloped manner and forms a three-dimensional road. In the following, the main bridge part,
A plurality of three-dimensional road component units are formed by joining the three-dimensional road component units, and each of the plurality of three-dimensional road component units is provided with a support leg that can be lifted up. A mobile three-dimensional road characterized by providing support legs for supporting the part.