JP3640194B2 - Roof structure of large-scale building structure and roof construction method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a roof structure and a roof construction method for a large-scale building structure that is provided in various stadiums such as a bicycle racetrack and can hold a competition even when it rains.
[0002]
[Prior art]
In order to form large spaces such as stadiums and multipurpose halls, structures having large spaces such as air dome type (air film type), shell type, and open / close dome type have been widely used. Among these, in the air dome type structure, the structure (large roof) is inflated and self-supported by the air pressure sent into the membrane, and the weight is reduced as a whole.
[0003]
The shell type structure is a structure using a concrete curved plate, and the open / close dome type structure is intended to open and close the roof portion according to the weather conditions.
[0004]
[Problems to be solved by the invention]
However, in general roofs such as the shell type and the open / close dome type, it is necessary to use a large amount of heavy structural members and support materials such as truss beams. In particular, when a truss structure is adopted, the roof height must be increased by this truss height relative to the required ceiling height, and the air conditioning capacity must be increased by that amount. However, there was a problem that the construction period was long and the construction period was long.
[0005]
The present invention solves the above-described problems. By greatly reducing the amount of steel used, the assembly structure can be simplified, speeded up, and costs can be reduced. An object of the present invention is to provide a roof structure and a roof construction method for a large-scale building structure capable of constructing a large roof covering a large space.
[0006]
[Means for Solving the Problems]
The roof structure of a large-scale building structure according to the invention of claim 1 includes a pair of guide rails installed so as to face each other around the peripheral frame, and cable support members that move along these guide rails at both ends. A plurality of suspension cables, intersection hardware fastened to a plurality of sites for each set length of each suspension cable, and arranged to intersect each suspension cable, and supported by the intersection hardware A tension introducing presser cable is provided, and both ends of the support member are connected to adjacent one of the intersection metal fittings along the presser cable, and a roof plate is attached to the support member.
[0007]
In the roof construction method for a large-scale building structure according to the invention of claim 2, both ends of a plurality of suspension cables are movably supported with respect to a pair of guide rails installed so as to face the peripheral frame. Later, by fastening a cross hardware to a plurality of parts for each set length of each suspension cable, to support the press cable for tension introduction to the intersection hardware in a direction crossing the suspension cable, After connecting both ends of the support member to each one of the adjacent metal fittings along these presser cables, a roof plate is attached to the support member, and the process up to the installation of the roof plate is performed between the adjacent suspension cables. After completing each predetermined width, add the suspension cable by moving the suspension cable along the guide rail one after another, and finally introduce tension to each presser cable to make a large roof. It is obtained by the.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a partially enlarged perspective view showing a roof structure of a large-scale building structure according to the present invention. In FIG. 1, reference numeral 1 denotes a suspension cable. In this figure, only two cables arranged in parallel are shown. ing.
[0009]
Further, as shown in FIG. 2, these suspension cables 1 are supported by a pair of guide rails 2, for example, gently arcuately installed so as to be opposed to each other in a peripheral frame so that both ends can be moved. As shown in FIG. 3, these guide rails 2 are made of a channel member having a rectangular cross section in which an opening 3 is formed on one side, for example, and made of a high strength steel frame material.
[0010]
Further, in FIG. 4, reference numeral 4 denotes a cable support member that moves in the guide rail 2, which consists of a block-like traveling body 5 that is rotatably attached with four wheels 6. A cable locking ring 7 is attached to one side of the traveling body 5.
[0011]
Then, both ends of each suspension cable 1 shown in FIG. 1 and FIG. 2 are overlapped after passing through the cable locking ring 7 of the cable support member 4 as shown in FIG. The cable supporting member 4 is connected and held at both ends of each suspension cable 1 by winding the fastening member.
[0012]
Therefore, both ends of each suspension cable 1 are supported by the cable support member 4 that smoothly travels (moves) in the guide rail 2 via the wheels 5, and are movable along the opening groove 3.
[0013]
On the other hand, in FIG. 1, reference numeral 8 denotes an intersection metal fixture fixed to a plurality of portions for each set length of each suspension cable 1, and supports a later-described presser cable that is stretched so as to intersect each suspension cable 1. .
[0014]
As shown in FIGS. 6 and 7, the intersection metal piece 8 includes plate-like upper and lower holding pieces 9 and 10 for holding the suspension cables 1 from above and below, and each of these holding parts for holding the suspension cables 1. And fasteners 11 such as bolts and nuts for fastening the pieces 9 and 10 together. Each suspension cable 1 is clamped between arc-shaped cutouts formed on the mutually facing surfaces of the upper clamping piece 9 and the lower clamping piece 10 and clamped and held by the fastener 11.
[0015]
A lower support piece 12 for a presser cable is integrally provided on the upper holding piece 9 in a direction crossing the upper holding piece 9, and the upper support placed on the lower support piece 12 and the upper support piece 12 is provided. A protective pipe 17 is sandwiched between the piece 14 and the presser cable 13 is loosely supported in a support hole 16 of the protective pipe 17. The upper support piece 14 and the lower support piece 12 are fixed to each other together with the upper holding piece 9 and the lower holding piece 10 by fasteners 15 such as bolts and nuts penetrating therethrough.
[0016]
Therefore, since the presser cable 13 is smoothly inserted and supported in the protective pipe 17, it is possible to prevent the outer peripheral surface of the presser cable 13 from being damaged.
[0017]
Further, 18 is a gusset plate of a predetermined height that is integrally projected on the upper support plate 14 and extends in the longitudinal direction of the presser cable 13. The upper end edge of the gusset plate 18 supports a tight frame described later. The tight frame receiver 19 is integrally provided. Reference numeral 20 denotes a pair of substantially triangular reinforcing plates that reinforce the gusset plate 18 in a direction perpendicular thereto.
[0018]
The presser cable 13 constitutes a cable net supported on the intersection metal piece 8 as described above so as to cross the suspension cable 1, and when the roof is formed, both ends thereof are pulled to apply tension. Introduces and functions to stabilize the roof structure.
[0019]
Reference numeral 21 denotes a square pipe as a support member that is connected between the intersection metal fittings 8 and 8 adjacent to each other in the longitudinal direction of the presser cable 13, and reinforcing flange plates 21 a are provided at both ends of each square pipe 21. As shown in FIG. 7, the attachment pieces 22 connected to each other are fixed to the gusset plate 18 by fastening means such as bolts / nuts or welding.
[0020]
A bent tight frame 23 as shown in FIG. 1 is mounted on each square pipe 21 and the tight frame receiver 19 of the intersection metal piece 8. A folded plate 24 as a roof plate is mounted on the tight frame 23. Is attached.
[0021]
As the folded plate 24, for example, a single folded plate with felt, a double pack folded plate with a heat insulating material, a polycarbonate folded plate or the like is used, and a polycarbonate folded plate or the like is used in order to ensure translucency.
[0022]
In addition, although not shown in figure, between each square pipe 21 and 21, these folded plates 24 are mutually overlap | superposed on the both ends of the width direction, and it prevents that rainwater leaks. In addition, each of the folded plates 24 adjacent to each other in the longitudinal direction of the suspension cable 1 is overlapped with each other in the vicinity of the adjacent portions in a direction in which rainwater does not leak.
[0023]
As described above, the roof structure of the large-scale building structure according to the present invention has the square pipe 21 connected between the intersection hardware 8 and 8 attached to the suspension cable 1 and the presser cable 13 as described above. A folded plate 24 is laid on the frame 23, and the folded plate 24 is laid in an area where the cable net is required, and is formed in a shape close to a hyperbolic parabolic surface as shown in FIG. ing.
[0024]
Therefore, in this roof structure, the amount of support members used can be greatly reduced compared to the roof of a conventional truss structure, and the building height can be reduced relative to the required ceiling height due to the absence of the truss. Can be suppressed.
[0025]
Especially in facilities such as bicycle raceways where the main stand may be high and the ceiling may be low in other parts, the roof with the above-mentioned hyperbolic parabolic surface is optimal, and the space that needs air conditioning can be minimized. Can be economical.
[0026]
Next, the roof construction method of this large-scale building structure will be described. First, the cable support member 4 in which both ends of the suspension cable 1 are held as shown in FIG. 5 is accommodated in the pair of guide rails 2 as shown in FIG. To do.
[0027]
In this manner, the other plurality of necessary suspension cables 1 are also held by the cable support member 4 so that each suspension cable 1 can move along the pair of guide rails 2 at both ends. deep. At this time, these are concentrated in the area W of the folded plate assembly yard in the vicinity of the end of each guide rail 2 as shown in FIG.
[0028]
Then, in the region W, the intersection hardware 8 is fastened to a plurality of portions for each set length of each suspension cable 1. This fastening is performed by clamping the fastening cable 11 with the suspension cable 1 sandwiched between the upper clamping piece 9 and the lower clamping piece 10.
[0029]
Next, the tension-introducing presser cable 13 is loosely supported in the support holes 16 formed by the lower support piece 12 and the upper support piece 14 of the intersection metal piece 8 so as to intersect the suspension cables 1. In addition, this support is made by stacking the upper support piece 14 on the presser cable 13 placed on the lower support piece 12 and fastening the support pieces 12 and 14 together with the holding pieces 9 and 10 by the fasteners 15.
[0030]
Further, both ends of each square pipe 21 serving as a support member are connected to the gusset plate 18 of each one of the intersection metal fittings adjacent to the presser cable 13 by bolts / nuts or welding.
[0031]
Then, a folded plate 24 is attached to the square pipe 21 and the tight frame receiver 19 via a tight frame 23, and the suspension cable 1 having been attached to the folded plate 24 is attached along the guide rail 2 to a winch or the like. Use to move in the direction of the arrow in FIG.
[0032]
Further, after attaching the folded plate 24 to the next hanging cable 1 adjacent to the suspended cable 1 through the square pipe 21 in the same manner as described above, the folded plate 24 is attached while the presser cable 13 is pulled out. The suspended cable 1 is moved out of the area W along the guide rail 2 in the direction of the arrow. Thus, by completing the steps up to the attachment of the folded plate 24 for each predetermined width between the adjacent suspension cables 1 and 1, the suspension cable 1 can be added by successive movement along the guide rail 2. The roof is gradually enlarged.
[0033]
Thus, when the folding plate 24 is attached over substantially the entire length of the guide rail 1, a tension is introduced into each presser cable 13 in both directions indicated by arrows in FIG. In this state, the roof is stabilized, and both ends of each presser cable 13 are fastened to a predetermined peripheral frame to complete a large roof as shown in FIG.
[0034]
Therefore, in such a construction method, by using the movement of the suspension cable 1 and the sliding of the intersection metal piece 8 with respect to the presser cable 13, the large roof can be efficiently laid and the construction period can be shortened.
[0035]
Next, the case where the large roof is constructed at the time of rebuilding an existing bicycle racetrack will be described. Previous bicycle racetracks had a roof only on the top of the stand, and the event was often canceled during heavy rain.
[0036]
Therefore, the roof can be used to rebuild the stand, so that it is not affected by the weather, the noise does not leak outside, it can be held at night, and it can also be used for various events of local residents.
[0037]
However, in the construction of such a roof, it is required that the construction cost is low, that the competition can be held during the construction, and that no construction scaffolding is established in the fixie (bicycle runway). .
[0038]
For this reason, as shown in FIGS. 10 and 11, a cantilevered roof covering a part of the stand 32 is hung while the stand 32 including the main stand 31 is being repaired. The cantilevered roof is mounted on a substantially L-shaped arch pillar 33 arranged in two rows in the opposing stand 32 by a known method.
[0039]
In addition, a force that opposes the force (reaction force) that causes the suspension cable 1 to move downward due to the roof weight according to the construction method acts on the arch column 33. Therefore, in order to compensate for this opposing force, each arch column 33 is subjected to a well-known backstay process using a wire 34 and a wire support bar 35.
[0040]
Next, the guide rails 2 according to the present invention are attached to the upper ends of the two rows of the arch pillars 33, and are movably stretched between the guide rails 2 as described above within the region designated as the folded plate assembly yard W. The present invention covers the rectangular area Y shown in FIG. 10 by assembling the folded plate 24 via the square pipe 21 or the like on the suspended cable 1 and sliding the suspended cable 1 with the folded plate one after another. Form a roof structure.
[0041]
Finally, the cantilevered roof (not shown) is hung so as to cover the remaining part of the stand 32, for example, the right semicircular region Z or the left semicircular region in FIG. finish. In this example, since the reaction force is treated by backstay, the number of members resisting by bending is reduced as much as possible, and the material resisting by pulling is used instead. It becomes possible to reduce the cost.
[0042]
Therefore, even in such a bicycle racetrack, the roof structure of the present invention can be constructed at low cost without interfering with the holding of the race and without providing a scaffolding in the fixie. It can be used as a large hall for competitions and various events regardless of whether there is noise or not.
[0043]
Next, another embodiment of the present invention will be described with reference to FIGS. The intersection metal piece 8 'shown in the drawing is not provided with the protection pipe 17 but the lower support piece 12 whereas the intersection metal piece 8 in the embodiment shown above supports the holding cable 13 loosely by the protection pipe 17. The holding cable 13 is sandwiched between the upper support pieces 14 and fastened.
[0044]
Further, the mounting piece 22 of the square pipe 21 connected to the intersection metal piece 8 ′ is fixed to the gusset plate 18 by bolts and nuts. At this time, the bolt is attached to the mounting piece 22 with the length of the square pipe 21. The square pipe 21 is loosely supported in the length direction by being inserted into the long hole 22a provided in the direction, and the change in the interval between the respective intersection hardware 8 ′ when the tension is introduced into the presser cable 13 is obtained. Absorption is achieved by this support structure.
[0045]
In order to construct a roof of a large-scale building structure using this intersection hardware 8 ′, the intersection hardware 8 is provided at a plurality of locations for each set length of each suspension cable 1 in the area W of the folded plate assembly yard shown in FIG. After fastening ', the presser cable 13 is clamped between the lower support piece 12 and the upper support piece 14 of the intersection metal piece 8' so as to cross each suspension cable 1.
[0046]
Further, both ends of the square pipe 21 are loosely connected to the gusset plate 18 of each one of the adjacent metal fittings 8 ′ along the presser cable 13 by bolts and nuts in the length direction thereof. Thereafter, the roof is gradually enlarged by performing the same operation as that of the embodiment described above.
[0047]
If this intersection metal piece 8 ′ is used, the change in the distance between each intersection metal piece 8 ′ after the introduction of the tension is absorbed by the support structure between the square pipe 21 and the intersection metal piece 8 ′, and the members constituting the roof are held down by the cable. 13, which can further increase the stability of the roof after the introduction of tension.
[0048]
【The invention's effect】
As described above, according to the first aspect of the present invention, a pair of guide rails installed so as to face each other, and a plurality of suspension cables having cable support members that move along the respective guide rails at both ends. An intersection hardware fastened to a plurality of sites for each set length of each suspension cable, and a tension introduction presser cable that is arranged so as to intersect with each suspension cable and supported by the intersection hardware Since both ends of the support member are connected to each adjacent intersection metal fitting along the presser cable, and the roof plate is attached on these support members, the usage amount of the support member In addition, the assembly structure can be simplified, reduced in weight, and cost can be reduced. Effect that can be suppressed to the building height low.
[0049]
Furthermore, in facilities such as bicycle raceways where the ceiling is partly high and low in other parts, the roof with the hyperbolic parabolic surface according to the present invention is optimal, and this roof can also minimize the air-conditioned space, The effect that a maintenance cost becomes cheap is acquired.
[0050]
Further, according to the invention of claim 2, after both ends of the plurality of suspension cables are movably supported by the pair of guide rails installed so as to face the peripheral casing, the set lengths of these suspension cables are set. Crossing hardware is fastened to a plurality of parts, and a tension introducing presser cable is supported with respect to the crossing hardware in a direction crossing the suspension cable, and then adjacent to the presser cables. After connecting both ends of the support member to each one intersection metal fitting, a roof plate is attached to the support member, and the steps up to the installation of the roof plate are completed for each predetermined width between the adjacent suspension cables, The suspension cable was added by moving one after another along the guide rail, and finally, the tension cable was introduced into the large roof to create a large roof. The construction of large roofs can be carried out sequentially and efficiently while moving the cable from the assembly yard sequentially along the guide rail. As a result, the construction period can be shortened and the construction cost can be greatly reduced. It is done.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a main part of a roof structure of a large-scale building structure according to an embodiment of the present invention.
FIG. 2 is a perspective view showing the entire roof structure of a large-scale building structure according to the present invention.
3 is a perspective view of a main part showing a guide rail in FIG. 1. FIG.
4 is a perspective view showing a cable support member that travels in the guide rail shown in FIG. 3. FIG.
5 is a side view showing the relationship between the guide rail shown in FIGS. 3 and 4 and a cable support member. FIG.
6 is a front view showing an intersection metal piece in FIG. 1. FIG.
7 is a side view of the intersection hardware shown in FIG. 6. FIG.
FIG. 8 is an explanatory view showing a situation in which a folded plate according to the present invention is slid by a winch.
FIG. 9 is an explanatory diagram showing a state of introducing a tension to the presser cable after the folding of the folded plate is completed in the present invention.
FIG. 10 is a conceptual diagram showing an example of construction of a roof structure of a large-scale building structure according to the present invention on a bicycle racetrack.
11 is a side view showing an example of construction of a large-scale building structure roof structure in FIG. 10 on a bicycle racetrack.
FIG. 12 is a front view showing an intersection hardware of a roof structure of a large-scale building structure according to another embodiment of the present invention.
13 is a side view of the intersection hardware shown in FIG. 12. FIG.
[Explanation of symbols]
1 Suspension cable 2 Guide rail 4 Cable support member 8, 8 'Intersection hardware 13 Presser cable 21 Square pipe (support member)
24 Folded board (roof board)

Claims (2)

A pair of guide rails installed so as to oppose each other to the peripheral chassis, a plurality of suspension cables having cable support members that move along the respective guide rails at both ends, and a set length of each of these suspension cables Intersection hardware fastened to a plurality of parts, a tension introduction presser cable that is arranged so as to intersect with each suspension cable and supported by the intersection hardware, and is arranged along these presser cables And a roof structure of a large-scale building structure, comprising: a support member connected to each of the intersection metal fittings whose both ends are adjacent; and a roof plate attached on these support members. After supporting both ends of a plurality of suspension cables movably on a pair of guide rails installed so as to face the surrounding chassis, cross metal fittings are fastened to a plurality of locations for each set length of each suspension cable. , Supporting the tension-introducing presser cable with respect to the intersection metal piece in a direction crossing the suspension cable, and then, following each of the presser cables, adjacent one of the cross-point metal parts with both ends of the support member , The roof plate is attached to the support member, and the steps up to the attachment of the roof plate are completed for each predetermined width between the adjacent suspension cables, and the guide rails of the suspension cable are successively arranged along the guide rails. A method for constructing a roof of a large-scale building structure, characterized in that it is expanded by moving and finally a tension is applied to each presser cable to form a large roof.

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