JP3811618B2 - Stretched monorail track girder and installation method thereof - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a straddle-type monorail track girder.
[0002]
[Prior art]
Currently, a straddle-type monorail track is mainly composed of a column that stands on the ground and a track beam installed on the column. The track girders include girders made of prestressed concrete (hereinafter PC girders), girders made of concrete (henceforth RC girders), and steel girders made of steel. It is used.
[0003]
[Problems to be solved by the invention]
Usually, PC girders, RC girders, etc. are about 20 m in the longitudinal direction, and are difficult to transport from the viewpoint of cost. However, if you make a local production, you can not expect much in terms of digit accuracy compared to the factory production. In particular, even when a PC girder or RC girder that is out of accuracy in terms of accuracy in the vertical direction or width direction of the girder is manufactured, in most cases, adjustment by a liner or the like cannot often be performed.
[0004]
In addition, when installed in this state, there is a vertical step on the road surface of the upper surface of the track girder between two adjacent track girders, even on the same column. A step in the left-right direction occurs, and the vehicle is shocked when the vehicle travels, resulting in poor ride comfort. For this reason, there arises a problem that a digit with a lower accuracy is destroyed, and a new digit is newly manufactured and installed.
[0005]
An object of the present invention is to provide an apparatus that enables easy adjustment of a running surface and both side surfaces on site.
[0006]
[Means for Solving the Problems]
The adjustment girder of the present invention is formed by using a steel road surface adjustment plate disposed on the upper surface of the adjustment girder with a hinge structure on a mounting seat formed using steel, and using the steel material. Attached to each adjustment plate on the pedestal that is arranged on the surface and is fixed on both sides of the adjustment girder, which is constrained by the hinge structure on the mounting seat, and inside the above-mentioned each adjustment plate and closes the top and both sides Because it is fixed with the screw screw jack for adjustment and screw type screw tightening nut, the road surface adjustment plate and adjustment plate on both sides of the adjustment beam can be adjusted by the screw type jack stroke, and the level difference from the connecting track beam is easy. It is possible to adjust to.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a schematic view of a general straddle-type monorail track. The monorail tracks 3 and 4 are installed on the upper surface of the support 1 of the monorail track. A support 2 is arranged between the support column 1 and the monorail track girders 3 and 4. Further, an adjustment girder 5 is attached between the monorail track girders 3 and 4 so as to substantially eliminate the step between the two.
[0008]
FIG. 2 is a perspective view showing the entire structure of the adjustment girder according to the present invention, in which the adjustment girder 5 is attached to the monorail track girder 3. The adjustment girder is attached to the track girder by bolting.
[0009]
FIG. 3 is a front view showing the overall structure of the adjustment girder according to the present invention, and the overall arrangement of the adjustment girder will be described. The pedestal 6 of the adjustment girder is formed using steel. Specifically, it has a cross section substantially the same as the end face of the mounting track girder, has a bolt mounting hole 8 necessary for fixing to the end face of the track girder, and restrains a side adjustment plate (to be described later) with a hinge structure. The hinge receiver 7 is attached by welding.
[0010]
The road surface adjustment plate 9 is formed of steel and has a cross section in the width direction substantially equal to the road surface of the track girder. Both side surface adjustment plates 10 and 11 serve as both side surfaces of the track girder. Details of the road surface adjustment plate and both side surface adjustment plates will be described later. The pedestal 12 is formed using a steel material, is located in the space inside the road surface plate 9 and the side surface adjustment plates 10 and 11, and is welded to the mounting seat 6.
[0011]
The pedestal is composed of an upper plate and two side plates. Each pedestal plate has a screw-type jack mounting hole 8 to be described later, the upper plate at the center, and the two side plates at two locations on the upper and lower sides. The screw type jack mounting hole 8 has a long hole structure in the longitudinal direction of the beam. The screw-type jack 13 is welded to the center of each adjustment plate, and the other end is tapped.
[0012]
FIG. 4 is a top view showing the overall structure of the adjustment girder of the present invention. The mounting position of the road surface adjustment plate hinge receiver 7 is a position where the adjustment plate 9, 10, 11 is inserted between the road surface adjustment plate hinge receivers and the heads of the pins do not protrude in the digit width direction even when the pins 14 are passed. To. The pin 14 is formed using a steel material, and one end thereof is larger than the pin diameter, and is larger than the inner diameter of the hinge receiver. The other end is structured to have a split pin hole so that it can be fixed by the split pin 15. At this time, when the side surface adjusting plates 10 and 11 are constrained by a hinge structure, it is preferable that the pin 14 has the head of the pin above the adjustment beam.
[0013]
FIG. 5 shows a left view showing the overall structure of the adjustment girder of the present invention. The pedestal 12 is slightly shorter in the depth direction when viewed from the longitudinal direction of the girder than the both-side adjustment plates, but in consideration of workability when tightening the screw-type jack fastening nut 15 disposed in the internal space of the pedestal. This is the structure.
[0014]
Moreover, although the upper end part of the both-sides adjustment board is slanting, this will interfere with the both-sides adjustment board 10 and 11, when it adjusts in the direction which lowers the road surface adjustment board 9, and it becomes a structure which can escape it. Yes.
[0015]
FIG. 6 is a detailed perspective view showing the hinge portion. One of the adjustment plates 9, 10, 11 is inserted into the two hinge receivers 7 welded and joined to the mounting seat on the same line, and the pin 14 is passed through and fixed with the split pin 15. Thereby, it can be set as a hinge structure. This figure employs the side adjustment plate at the top of the side adjustment plate 10 as a representative.
[0016]
FIG. 7 is a detailed cross-sectional view showing the screw type jack portion, and one place is adopted in this figure as a representative of five places. The structure is a long hole opened in the pedestal 12, and each adjustment plate 9, 10,
The other end of the screw-type jack 13 welded to 11 is passed through, and the position is determined by the screw-type jack tightening nut 16 from both sides with the base interposed therebetween. At this time, the screw portion of the screw-type jack 13 becomes an adjustable range, that is, a stroke when adjusting each of the adjustment plates 9, 10, 11.
[0017]
To attach the adjustment girder 5 to the end face of the track girder 3, tap the track girder 3 in advance for mounting the adjustment girder, and attach the bolt mounting hole 8 on the adjustment girder side to the monorail track girder. In this case, since the attachment is performed at the factory, an error in attaching the adjustment girder 5 can be reduced.
[0018]
The actual adjustment method of the adjustment girder is that the screw-type jack 13 is moved inward and outward of the adjustment girder by rotating the screw-type jack tightening nut 16 in the opening direction or in the closing direction. The tip of both side surface adjustment plates 10 and 11 are inclined with the hinge as the center, and the height and width are changed so as to substantially coincide with the road surface adjustment plate 9 and the track girder connected to both side surface adjustment plates 10 and 11. Let At this time, the level difference between the two digits connected to each other is measured, and the level difference is not corrected by using the adjustment digit of the present invention. This also has the effect of increasing work efficiency.
[0019]
Another embodiment will be described with reference to FIG. In this state, the side surface adjustment plates 10 and 11 are divided into two parts, but the same effect can be obtained even in a structure in which the upper side plate 10 and the lower side plate 11 are integrated.
[0020]
【The invention's effect】
According to the present invention, since the adjustment and installation errors of the two girders are adjusted by the adjustment girders, the monorail track can be produced at low cost.
[Brief description of the drawings]
FIG. 1 is a schematic view of a straddle-type monorail track.
FIG. 2 is a perspective view showing an overall structure of an adjustment girder according to the present invention.
FIG. 3 is a front view showing the overall structure of the adjustment girder according to the present invention.
FIG. 4 is a top view showing the overall structure of the adjustment girder according to the present invention.
FIG. 5 is a left view showing the overall structure of the adjustment girder of the present invention.
FIG. 6 is a detailed perspective view showing a hinge portion.
FIG. 7 is a detailed sectional view showing a screw-type jack portion.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Post, 3, 4 ... Track girder, 5 ... Adjustment girder, 6 ... Mounting seat, 9 ... Road surface adjustment plate, 10 ... Upper side surface adjustment plate, 11 ... Lower side surface adjustment plate, 12 ... Base, 13 ... Screw type jack .

Claims (2)

A mounting seat formed using steel,
A road surface adjusting plate that is molded using steel and is arranged on the upper surface of the mounting seat using a hinge structure on the mounting seat;
Side adjustment plates that are molded using steel and are arranged on both sides of the adjustment girder using a hinge structure on the mounting seat;
Located in the space inside the adjustment plate formed using steel, is rigidly connected to the mounting seat, and the upper surface plate,
A pedestal installed in a space surrounded by two side plates, an adjustment screw and a screw jack for adjustment, a nut arranged toward the pedestal,
A straddle-type monorail track girder consisting of Place the end of the first digit on the column,
Place the end of the second beam connected to the end of the first beam on the column,
The leading edge of the road surface plate on the upper surface of the adjustment beam installed at the end of either the first beam or the second beam is substantially aligned with the road surface of the upper surface of the other beam. While changing the height,
Changing the position of the end of the side plate tip on both sides of the adjustment beam installed at the end of the one beam so as to substantially match the side plate on the upper surface of the other beam,
Installation method of straddle-type monorail track girder characterized by

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