JP3353184B2 - How to build artificial ground - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for constructing an artificial ground , for example, over a track or a road.

[0002]

2. Description of the Related Art As is well known, conventionally, as a building structure having an artificial ground straddling the sky such as a track and a road, as shown in FIG. In addition, as shown in FIG. 21, there is a type in which the artificial ground F is supported by the beam 4 having a large span and columns in the intermediate portion are omitted.

[0003]

However, in a conventional building structure having an artificial ground, even if an attempt is made to adopt the form shown in FIG. Could not be built because pillar 1 ... could not be built in the middle. FIG.
When the artificial ground F is formed on the beam 4 having a large span as shown in the above, the beam 4 has to have a structure with a large strength and the beam becomes large. In order to go up to the artificial ground F made, it is necessary to go up to the height that combines the required space height under the beam and the beam. For example, when making a station concourse on the artificial ground on the track R, from the platform on the first floor It required a long staircase to the concourse. Conventionally, when constructing such an artificial ground, a temporary gantry that straddles tracks and roads is provided, and truss beams and floors of the artificial ground are assembled thereon. Therefore, the completed artificial ground has a problem in that the required height of the lower space plus the thickness of the temporary gantry becomes the height under the beam, and a useless space is created under the beam.

[0004] The present invention was made in view of the above circumstances, it is easy to build a high efficiency of space artificial
An object of the present invention is to provide a method for constructing a ground .

[0005]

[0006]

[0007]

According to a first aspect of the present invention, there is provided a method of constructing an artificial ground, the method comprising the steps of: constructing an artificial ground above a ground surface, wherein a supporting structure for supporting the artificial ground to be constructed is provided. A temporary gantry is provided at both ends of the erection target position, and a temporary gantry is installed at an end of the erection target position, and a large span truss beam is assembled on the temporary gantry and bridged between the support structures. A unit slab is formed by connecting a floor slab serving as an artificial ground to a vertically displaceable and vertically raised position via a suspension pillar in a temporarily fixed state, and the unit artificial ground is placed on a temporary gantry. After being sent out above the installation target position and bridged between the support structures, each unit is connected to the rear to assemble another unit artificial ground, and sent out from the temporary gantry and bridged between the support structures. unit Whole deck is fixed at a predetermined height in a state that each slab was suspended and supported through suspension pillars from each truss beams respectively to move downward in Engineering Ground
Are integrated .

[0008]

The artificial ground constructed by the method of the present invention is:
A floor slab serving as an artificial ground is suspended and supported from a long span truss beam via a suspension column, and is installed at a desired height.

[0009] A person constructed by the method of the present invention.
Since the slab is supported so that the floor slab can be displaced vertically and fixed at a predetermined position with respect to the truss beams, the installation height can be determined arbitrarily.

In the method of constructing an artificial ground according to the present invention , a large span truss beam is assembled on a temporary gantry installed at an end of a erection target position, and the truss beam is bridged between the support structures. A unit slab is formed by connecting a floor slab serving as an artificial ground to a beam via a suspension column so as to be vertically displaceable and temporarily fixed to a raised position, thereby forming a unit artificial ground on the temporary gantry. After being sent from above to the erection target position and bridged between the support structures, it was connected to the rear to assemble another unit artificial ground, and sent out from the temporary gantry and bridged between the support structures. is fixed at a predetermined height in a state that each slab was suspended and supported through suspension pillars from each truss beams respectively to move downward in the unit artificial ground, deck total
Integrate the body.

[0011]

FIG. 1 to FIG. 1 show an embodiment of the present invention.
This will be described with reference to FIG. 1 and 2 are schematic configuration diagrams of the structure of the present embodiment. In this structure, columns (supporting structures) 10... Are erected on the side of the existing track R, and the columns 10.
A truss beam 11 having a large span spans the upper side of the track R by being supported by the truss R, and a suspending floor (floor slab) 13 is suspended from the truss beam 11 by suspending columns 12. Is an artificial ground F. A beam 14 is bridged between the suspension columns 12 and 12, and the beams 14
, The suspension floors 13 are configured as one unit between the truss beams 11.

A method for constructing the above building structure will be described. When the entire artificial ground to be constructed has the plane shape shown in FIG. 3, first, as shown in FIG. 4, a permanent foundation is made, pillars 10 are mounted, and a slide rail 2 is placed thereon.
Pass 2,22 and the digits 23,23 that receive it. Also,
A temporary gantry T for assembling the truss beam 11, the suspension pole 12, and the suspension floor 13 at the end of the place where the artificial ground F is to be constructed.
Is provided.

Then, as shown in FIG. 5, the permanent truss beams 11, the suspension columns 12,... And the suspension floor 13 are assembled on the temporary gantry T. At this time, the truss beams 11 are formed while supporting the ends thereof on the slide rails 22 and 22. Suspended pillar 12
Are structured so as to be able to move up and down with respect to the truss beam 11, and when assembling the truss beam 11 on the temporary gantry T, the suspension columns 12 are raised as shown in FIG.
3 is raised to the position of the lower chord of the truss beam 11. Thereby, the position of the truss beam 11 can be lowered (the height h shown in the drawing is small), so that the assembling work of the truss beam 11 and the hanging floor 13 can be performed safely and easily.

When the assembly of one unit (unit artificial ground) is completed, that is, when the two truss beams 11, 11 and the suspension floor 13 between them are formed, the unit is connected to the truss beam 11 as shown in FIG. Send out only one interval. Then, the next unit is assembled on the temporary gantry T and connected to the rear of the previously sent unit.
On the other hand, the suspended floor 13 of the unit sent out from the temporary gantry T is jacked down to a predetermined level as shown in FIG.

The above operation is repeated to set all the truss beams 11 and floor units at predetermined positions as shown in FIG. Thereafter, the temporary gantry T is removed, the suspension floor 13 located on the temporary gantry T is jacked down, and the floor 13 is removed.
.., The suspension columns 12 are connected to each other by connecting members 24,
The entire suspended floor is integrated and finished with finishing work.

As shown in FIG. 9, the suspension columns 12 are arranged so as to sandwich the truss beams 11, and if the floor 13 is only one side of the truss beams 11, the suspension columns 12 are arranged on one side. When the floor 13 is on both sides of the truss beam 11, it is arranged on both sides. The suspension pillar 12 is made of an H-shaped steel, a channel material, a steel pipe, or the like, and the lower end thereof is attached to a beam 14 of a suspension floor 13 as shown in FIG. A load receiving jaw 31 is attached to the upper end of the suspension pillar 12, and a bracket 32 for the jaw receiver is attached to the truss beam 11 body. As shown in FIG. 11, the respective positional relations are set to a predetermined level when the suspension floor 13 is lowered.

Further, as shown in FIG. 12, the suspension floor 13 is raised until the jack is lowered, and during that time,
Hang it with a jack 33 (FIG. 12a) or
It is supported by the temporary jaw 34 (FIG. 12B). Suspended floor 13
As a means for lowering the height, a jaw 31 of the suspension pole 12 is lowered to a jaw receiver 32 using a center hole jack or the like, and fixed (see FIG. 11).

Further, when two or more suspension columns 12 are located close to each other, as shown in FIG. 13, the flexural rigidity after jack-down is increased as shown in FIG. It is assumed that a certain connecting material 24 connects the two. If a portion close to the suspension floor 13 is connected, it becomes a ramen, and the rigidity in the lateral direction is increased, and the effect is high.

When there is a step on the floor unit with the truss beam 11 interposed therebetween, as shown in FIG. 14, suspending columns 12, 12 having different lengths are used. As shown in FIG. 15, one suspension pillar 12 is used to change the mounting position of the beams 14, 14, or as shown in FIG. 16, the suspension pillars 12, 12 having different lengths are used.
Are used.

According to the artificial ground of this embodiment, the suspension columns 12
The beam 14 of the suspended floor 13 is H
Artificial ground F that can be settled with only a single section steel,
Level can be lowered. As a result, the height of the stairs from the reference floor (the first floor) can be reduced, the convenience of passengers at stations used by many people increases, the flat area of the stairs decreases, and the cost merit is great. Further, since the overall height is reduced, the stress due to the earthquake is reduced, and the columns, foundations, etc. can be made economical.

Further, since the floor level can be freely changed depending on the place, the place where the required height of the space under the beam is high is raised and the place where the required height is low is lowered by lowering the floor level.
The floor level can be lowered overall. This further enhances the above effect. Furthermore, by consciously changing the floor level, a space with a high level of performance can be created, and by continuously changing the hanging level, slopes and stairs can be easily created.

Then, upon construction, on a temporary gantry,
Since the hanging floor 13 is assembled with the hanging floor 13 raised, the sliding floor 13 is jacked down after sliding.
Can be as low as the minimum required height of the lower space. This also enhances the above effect. The assembling of the truss beams 11, the suspension columns 12,... And the suspension floor 13 is performed on a temporary gantry, so that work can be safely performed on a lower track or road. The jack-down operation is performed on a track or a road deviating from the temporary gantry. However, since the suspension floor 13 is assembled and is in a stable state, the safety is high.

In general, the upper truss beam 11 is merely covered with a roof at the position of the upper chord. However, if a floor is provided at the position of the lower chord, the artificial ground can be used in multiple layers, and the space can be used. Efficiency improves dramatically. That is, if the floor F is placed on the level of the upper chord of the truss beam 11 to be formed on the upper part, a plaza or the like can be formed on the roof, and if a small load is expected on the roof, a small scale can be obtained as shown in FIG. Building 41 can be built freely. In addition, if a floor is placed at the level of the lower chord, the space inside the truss beam can be used, and it can be used for a parking lot or the like. In this way, it is possible to effectively use the upper space and form a multilayer structure.

Next, a description will be given of a second embodiment of a building structure having artificial ground according to the present invention. Also in this embodiment, as shown in FIGS. 18 and 19, a large span truss beam 11 is bridged over the sky such as a track or a road. An artificial ground system is constructed by suspending and placing the objects, and further communicating each of them.

Each of the units 51 has a size that fits in the cell shown in FIG. 19, and is suspended by the suspension columns 12 at the intersection of the cell. But where
The vertical and horizontal dimensions of the cells are determined by the truss beam spacing and room (unit 5).
It can be determined arbitrarily from the convenience of 1). Also, various units 51 may be prepared according to various uses. For example, a floor unit, a room unit, a stair unit, an escalator mounting unit, a passage unit, an equipment room unit, a hand washing room unit, and the like can be considered.

By connecting these units 51 to each other to form a wider floor or room, or connecting rooms for various uses with a passage unit, it is possible to create a space capable of responding to various uses. In addition, if no unit is attached, a stairwell can be easily made.

Units 51... May be divided into a size that can be transported in a factory, transported to the site, and assembled to a certain size may be attached to truss beam 11 or divided. The object as it is may be directly attached to the truss beam 11 and assembled. Also, the attachment level of the units 51 to the truss beams 11 may be set arbitrarily, but usually, the truss on the upper part is set at the minimum height that can secure the required height of the lower space of the units 51. Beam 11
Level is low and economical. Note that these units 51... May not only be hung from the truss beam 11, but also be mounted on the truss beam 11 or set in the space inside the truss beam 11.

In the present embodiment, the truss beams 11 may be left exposed in the air to fulfill the role of bearing the weight of the units 51..., Or the truss beams 11 may be covered with a roof. As in the case of the first embodiment, the roof can be used as artificial ground if the floor is placed on the upper chord of the truss beam 11, and if the floor is placed on the level of the lower chord of the truss beam 11, the inside of the truss beam can be used. Space is available.

In the first and second embodiments,
The truss beams 11 are suspended floors 13 or units 51.
Therefore, the shape and dimensions of the truss beam can be appropriately changed as long as the truss beam has a large span.

[0030]

[0031]

[0032]

According to the method for constructing artificial ground of the present invention,
Assembling truss beams, suspension columns, and floor slabs on a temporary gantry
Perform and connect the assembled unit artificial ground and send it out
Especially when assembling unit artificial ground
A floor slab can be displaced in the vertical direction via a suspension column on a truss beam
When connecting and sending the unit artificial ground from the temporary gantry
The floor slab is raised and temporarily fixed, and the unit artificial ground
After sending it out, lower the floor slab and suspend it
Attach and secure the entire floor slab
Therefore, construction work of artificial ground can be performed safely and easily.
This has the effect of being able to In addition, by reducing the spacing between the suspension columns, the size of the beam receiving the floor slab can be reduced,
Therefore, the level of the artificial ground can be lowered and does not become higher than necessary as in the conventional case. As a result, cost merit such as finishing work is reduced, and the overall height is reduced, so that the stress due to the earthquake is reduced and the pillars, foundations and the like can be made economical. In addition, since the level of the floor slab can be freely changed depending on the place, the place where the required height of the space under the beam is high is raised, and the place where the required height is low is lowered by lowering the floor level, so that the entire floor level is reduced. Can be lowered. This further enhances the above effect. Furthermore, by consciously changing the floor level, a space with a high level of performance can be created, and by continuously changing the hanging level, slopes and stairs can be easily created.

[Brief description of the drawings]

FIG. 1 is a front view showing a building structure having an artificial ground according to an embodiment of the present invention.

FIG. 2 is a plan view of the same.

FIG. 3 is a plan view showing a positional relationship between an artificial ground to be constructed and a temporary gantry.

FIG. 4 is a perspective view showing a positional relationship between a temporary gantry and a slide rail.

5A and 5B are diagrams showing a positional relationship between a temporary gantry and a suspended floor under construction, wherein FIG. 5A is a front view and FIG. 5B is a side view.

FIG. 6 is a front view showing a state in which a truss beam, a suspension pillar, and a suspension floor made on a temporary gantry are slid.

FIG. 7 is a front view showing a state where a suspended suspension pillar and a suspended floor are jacked down.

FIG. 8 is a front view at the time when the sliding of all the units is completed, the fixing with the connecting material is started, and the removal of the temporary gantry is started.

FIG. 9 is a plan view showing a positional relationship between a suspension floor and suspension columns.

FIG. 10 is a view showing a state before a load receiving jaw attached to a suspension pole and a jaw receiving bracket provided on a truss beam are suspended from a suspended floor.

FIG. 11 is a view showing a state in which a load receiving jaw attached to a suspension pole and a jaw receiving bracket provided on a truss beam have been suspended from a suspended floor.

12A and 12B are diagrams showing a method of supporting a suspension column before hanging down a unit, wherein FIG.
(B) shows a method using a temporary bracket.

FIG. 13 is a diagram showing a state in which adjacent suspension columns are integrated by a connecting member.

FIG. 14 is a diagram showing a state of support by suspension columns when there is a step across a truss beam.

FIG. 15 is a diagram showing a state in which a step is supported by one suspension pillar when there is a step in one unit.

FIG. 16 is a view showing a state where two units are supported by two suspension columns when there is a step in one unit.

FIG. 17 is a side view showing a state in which a floor is put on an upper chord member of a truss beam and a building is provided here.

FIG. 18 is a sectional view of a building structure having an artificial ground according to a second embodiment of the present invention, taken along a line XX in FIG. 19;

FIG. 19 is also a plan view.

FIG. 20 is a diagram showing an example of a conventional building structure having artificial ground.

FIG. 21 is a view showing another example of a conventional building structure having artificial ground.

[Explanation of symbols]

 F Artificial ground T Temporary gantry 10 Pillar (support structure) 11 Truss beam 12 Suspended pillar 13 Suspended floor (floor slab)

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) E04H 1/00 E04B 1/00

Claims (1)

(57) [Claims] 1. A method for erection of an artificial ground above a ground surface, wherein support structures for supporting the artificial ground to be erected are provided on both sides of the erection target position, and an end of the erection target position is provided. A temporary gantry is installed on the temporary gantry, and a large span truss beam is assembled on the temporary gantry and bridged between the support structures, and a floor slab serving as an artificial ground is vertically suspended on the truss beam via a suspension pole. A unit artificial ground is formed by being connected to the displaceable and raised position in a temporarily fixed state, and the unit artificial ground is sent out from the temporary gantry to a position above the installation target position and is bridged between the support structures. After that, while connecting to the rear to assemble another unit artificial ground, each floor slab in each unit artificial ground sent out from the temporary gantry and bridged between the support structures is moved downward respectively. To integrate the entire deck is fixed to a predetermined height supporting the suspended state via a post suspended from trusses Beam
How Artificial ground, characterized in that that.