JPH0765298B2 - A method of constructing a horizontal material that uses both turning and half-rolling - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to turning in the case of constructing a structure such as an artificial ground on a road, a railway line, a waterway or the like where traffic cannot be installed in the middle of a pillar, This is related to the method of constructing a horizontal material with a combination of half-hand drawing.

[Problems to be Solved by Conventional Techniques and Inventions]

BACKGROUND ART Conventionally, as a construction method for bridging roads, railway lines, waterways, etc., where no support work can be installed in the middle of a pillar, erection girder construction method, cantilever construction method, drawer construction method, etc. are known.

However, the above-mentioned conventional construction methods have problems that temporary construction costs for construction work are large and that a fairly large construction site must be secured adjacently.

The present invention provides a method of constructing a construction such as an artificial ground on a road, a railway line, a waterway or the like where traffic is heavy, so that this construction can be efficiently performed on a small land, as an aid to alleviating land difficulty in urban areas. It was made for the purpose of doing.

[Means for Solving the Problems]

In order to achieve the above-mentioned object, the present invention, at a site where a supporting work cannot be installed in the middle, arranging columns of columns composed of columns facing each other on both sides of the site, and a girder beam in the girder direction between columns on each side. The step of connecting, the step of overhanging the horizontal member with the semi-rolling machine extended to the head of the pillar along the row of pillars on one side, and the above horizontal member with the pillar supporting the center of gravity of the horizontal member. As a fulcrum, the semi-rolling machine side is swiveled in the direction of the supporting column on the other side, and the side opposite to the half-rolling machine of the horizontal crossing member is spared with a reaction force with a wire, and the horizontal crossing member is opposed. Pull out in the direction of the other strut and remove the latter hand stretcher that supports both ends of the horizontal strut on both strut, and send the above horizontal strut in the girder direction, and sequentially roll it to each opposing strut of the strut row on both sides. It is characterized by a method of constructing a horizontal material that uses both turning and semi-manual extension, which is constructed by the process of erection of the material.

[Work]

The horizontal material to be erected is first erected on the head of the stanchion along the column of stanchions and then turned in the erection direction, so that the horizontal erection material can be assembled and erected on a narrow construction site. Since the horizontal material is in the air, there is no restriction on the above-ground property below the height of the pillar.

However, if the horizontal member is pulled out in the direction of the opposite strut, and the tip of the half-laying machine is supported by the strut on the other side, the horizontal member is then supported on both struts in the same state as both ends are supported. Stable support. Until the tip of the semi-laying machine reaches the strut on the opposite side, the center of gravity of the horizontal member moves from the fulcrum of the horizontal member due to the pulling out of the horizontal member, causing a falling moment in the horizontal member. Slightly balanced by the reaction force of the wire. Since the length of the horizontal material is extended by the half-pulling machine, the distance required to take the reaction force with the spare wire is small.

After the tip of the semi-laying machine reaches the strut on the other side of the opposite side, continue pulling out the horizontal crossing material, and when both ends of the horizontal crossing material are supported by the columns on both sides, remove the semi-laying machine The material is sent in the direction of the girder, and the above steps are repeated to sequentially lay the horizontal material on the opposing columns of the column rows on both sides.

In the above construction method, since the horizontal materials are bridged at a certain number of columns, the work of assembling the horizontal materials, turning, installing the spare wire, and pulling out the horizontal material can be done in only one place. Savings and rationalization of construction can be achieved.

〔Example〕

Hereinafter, the method of the present invention will be described in detail with reference to the illustrated embodiments.

The example assumes a case where an artificial ground or the like is constructed across the overhead limit height in the sky above the site where the support work cannot be installed in the middle of the pillar, such as a road with heavy traffic, a multi-track railway line, a waterway, etc. ing.

In this construction method, first, along a boundary line a, a on both sides of the site A, a predetermined number of columns 1 are arranged on each outside of the site A with a predetermined distance b at a predetermined interval c, and the column columns I on each side are arranged. , I'columns 1 are connected by girder beams 2 in the girder direction. The height of the pillar 1 is set to a height d that exceeds the overhead height of the site A. Then, a column of columns I on one side of the length range in which the semi-rolling machine 4 is extended on the horizontal material 3 to be erected.
Column 1 ... and a column 1'in the center of the column 1 ...
Temporary pedestals 6 which can be moved up and down by jacks 5 as shown in Fig. 10 are temporarily installed on the inner stigmatic sides of the columns 1 "on the other side, which are opposed to each other (become a bridging material bridging position). The temporary mount 6 of the support column 1'which is the bridge position of the support member 3 is rotatable about the axis of the jack 3 '. Further, the girder beam 2 is provided between the support columns 1 of both side support columns I and I'. Supported by the column 1 and a slipway made of a material with a small friction coefficient at the same level as the upper surface of the column 1 or a rail, etc., is temporarily installed, and halfway at a predetermined position on the extension line of the column 1 ', I "facing the column 1". The temporary support column 8 for depositing the tip of the semi-handed machine 4 of the horizontal member 3 of the extension device 4 is temporarily installed, and the jack 9 and the winch 10 for pulling out the horizontal member 3 are installed on the column head.

After that, the upper surface of the temporary mount 6 of each of the columns 1 of the column row I on one side is aligned with a plane slightly higher than the stigma of the columns 1 by operating the jack 5, and a half hand is attached to this temporary mount 6 at one end. The horizontal material 3 with the extending machine 4 extended is erected using a crane truck or the like. At this time, the center of gravity G of the horizontal member 3 extending from the half-cutter 4 is placed on the temporary stand 6'of the predetermined support 1 '.

When the tip of the semi-passing machine 4 is disengaged from the outermost strut 1 of the strut row I, a jack is attached to the pillar head on the extension line of the strut row I.
A temporary support column 12 on which the 11 is installed is erected, and the tip of the semi-passing machine 4 is deposited on the jack 11 of the temporary support column 12 (Figs. 1 and 2).
(Fig. 3, Fig. 3).

Next, when the other jacks 5 and 11 are lowered except for the jack 5'of the temporary stand 6'which supports the center of gravity G of the horizontal member 3 of the extension of the half-roller 4, the horizontal extension of the half-roller 4 is extended. The material 3 is supported in a horizontally balanced state with the temporary mount 6'as a fulcrum. Then, the horizontal member 3 of the half-rolling machine 4 is turned 90 degrees with a tow rope, and the half-rolling machine 4 is directed toward the column 1 ″ on the other side opposite to the half-rolling machine of the horizontal crossing member 3. The spare wire 13 attached to the opposite side is connected to the ground anchor 14 that has been driven in advance at a predetermined position, and the wire 15 of the winch 10 for pulling out the horizontal member 3 is attached to the tip of the semi-interceptor 4. They are bound (Figs. 4 and 5).

Next, the wire 15 is wound up by the winch 10 and the horizontal member 3 extending from the half-rolling machine 4 is pulled out. At this time, the upper surfaces of the temporary pedestal 6 ″ of the supporting column 1 ″ on the opposite side and the jack 9 of the temporary supporting column 8 that holds the tip of the semi-pulling machine 4 are raised to the same level as the temporary mounting platform 6 ′ on the supporting column 1 ′ side. By this drawer, the center of gravity G of the horizontal member 3 extending from the half-roller 4 is moved to the drawer side, and a falling moment is generated in the horizontal member 3 extending from the half-machine 4; Balanced by 13 reaction forces. An auto reel 13a is interposed in the middle of the spare wire 13 to cope with the change in the length of the spare wire 13 due to the pulling out of the horizontal member 3. When the tip of the semi-roller 4 reaches the temporary stand 6 "of the strut 1" on the opposite side, the horizontal member 3 of the half-roller 4 extension is supported at both ends and is stably supported. Remove. And then further with the winch 10 the wire
15 is wound up, and when the tip of the cross member 3 reaches the strut 1 ″ on the opposite side and the tip of the semi-pulling machine 4 is supported by the jack 9 of the temporary strut 8, the withdrawal is stopped. 1 ″
Also, the jacks 5 ', 5 ", 9 of the temporary support column 8 are lowered, the both ends of the horizontal member 3 are supported by the column heads of the support columns 1', 1", and the half-laying machine 4 is removed (Fig. 6, Fig. 6). (Fig. 7).

The horizontal member 3 supported by the pillar heads of the columns 1 ', 1 "is fed laterally on the slipway 7 temporarily provided on the girder beam 2 between the columns 1 so that the column columns I, I'of both sides face each other. The pillars 1 and 1 will be erected on the pillar heads. For this lateral feed, a transverse feed winch 16 is temporarily installed on the pillar heads of the outermost pillars 1 on both sides of the column columns I and I '.
The wire 17 bound to both ends of the horizontal member 3 is wound by a winch 16 or the like. (Fig. 8).

The above steps are repeated in the same manner as described above, and the horizontal members 3 are erected on the columns 1 and 1 'of the column columns I and I'on both sides, which are opposed to each other. Remove the temporary pedestal 6,6 ', 6 ", slipway 7, temporary stanchions 8,12 of the half-laying machine 4, earth anchor 14, transverse feed winch 16, etc. (No. 9)
Figure). After this, crossbeams will be installed, deck plates will be lined up, and concrete will be poured to construct an artificial ground.

The order of steps described in the embodiments is not limited to this, and may be changed before and after the circumstances as appropriate.

〔The invention's effect〕

As described above, according to the present invention, at a site where a supporting structure cannot be installed in the middle, column columns composed of columns facing each other are arranged on both sides of the site, and columns on each side are connected by a girder beam in the girder direction. And the step of laying a horizontal member with a semi-rolling machine installed on the head of the column along the row of columns on one side, and the horizontal member is a fulcrum that supports the center of gravity. As a result, the semi-rolling machine side is swung in the direction of the strut on the other side, and the side opposite to the half-rolling machine of the horizontal crossing material is reluctant to take a reaction force with the wire, and the other horizontal crossing material is opposed. Side post, pull out in the direction of the column, and remove the latter half stretcher with both ends of the cross member supported by both posts, and send the above cross member in the girder direction, and place it horizontally on each of the opposing columns of the column columns on both sides. The material is erected by the process of erection of the material. The state, turning the drawer at the time of not conflict with ground property follows strut height In the air, it is extremely useful for construction of a difficult urban securing construction site.
In addition, the work is streamlined because the work is carried out at fixed posts. In addition, since the length of the horizontal material is extended by a half hand machine and the reaction force is supported by a spare wire, the horizontal material is bridged. Even on sites such as lines and waterways, it is possible to lay a horizontal span material with a large span, which is a great effect.

[Brief description of drawings]

FIG. 1 to FIG. 9 show one embodiment of the method of the present invention sequentially according to the steps, and are shown in FIG. 1, FIG. 2, FIG. 4, FIG.
FIG. 8, FIG. 8 and FIG. 9 are plan views of the respective steps, FIG. 3 is a side view of FIG. 2, FIG. 5 is a side view of FIG. 4, and FIG.
FIG. 10 is a side view of a side view of a temporary stand temporarily installed on the stigmatic side of the column. I, I ′ …… Post columns, 1,1 ′, 1 ″ …… Posts, 3 …… Horizontal material,
4 …… Half-laying machine, 6,6 ′, 6 ″ …… Temporary stand, 7 …… Slipway, 13 …… Sorry wire, A …… Site, G ……
Center of gravity.

Claims (1)

[Claims] 1. A step in which, at a site where no support work can be installed in the middle, column columns composed of columns facing each other are provided on both sides of the site, and columns on each side are connected by girders in the girder direction, A process of overhanging a horizontal member with a semi-rolling machine installed on the head of the column along the column of one side, and the horizontal member is half-rolled using the column supporting the center of gravity as a fulcrum. Rotating the machine side in the direction of the strut of the other side facing, and taking a reaction force with the wire sparingly on the side opposite to the half-laying machine of the horizontal member, and the direction of the strut of the other side facing the horizontal member. And removing the latter half of the horizontal stretcher supporting both ends of the horizontal strut on both columns, and feeding the above horizontal strut in the direction of the girder, and sequentially laying the horizontal strut on each opposing strut of the strut rows on both sides. A method of erection of horizontal material for combined use of turning and semi-rolling, which is characterized in that it is erected by the construction process.