JP2007113277A - Roof structural body and its construction method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a roof structural body and its construction method for promoting reduction of its weight and reducing time and labor required for construction to reduce cost sufficiently. <P>SOLUTION: A roof material 20 is lifted and supported by an upper cable material 12 and a vertical cable material 14 provided in a downwardly projecting manner and can resist to upward force when blowing-up force when strong wind blows acting on the roof material 20 exceeds self-weight by a lower cable material 13 and the vertical cable material 14 provided in an upwardly projecting manner, and stability of a roof face is ensured even without providing a beam made of steel frame to promote reduction of weight. Since it is possible to dispense with a horizontal reinforcing rigid beam and a tension cable connected with it, time and labor required for the work related to joining of them can be reduced and construction cost can be sufficiently reduced. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a roof structure and a construction method thereof, and more particularly to a roof structure in which a roof material is supported by a cable material and a construction method thereof.

2. Description of the Related Art Conventionally, as a roof structure provided to cover an upper part of a large building such as an athletic stadium, a roof structure supported by a cable material is known (see, for example, Patent Document 1).
The roof structure described in Patent Document 1 includes a plurality of support columns projecting upward from a housing at the outer edge of the building, and a cable member suspended between a pair of opposing support columns, A plurality of suspension cables suspended from the cable material, a lateral stiffening beam supported by the plurality of suspension cables, and a roof material fixed to the lateral stiffening beam are configured. In this way, the suspension structure using the cable material can suppress an increase in the weight of the roof structure even when the span between the columns becomes a large span. When the roof structure is configured with a truss structure, etc. The construction cost can be reduced compared to the above.

Japanese Patent Laid-Open No. 7-109851

By the way, in a large span roof structure, it is important to support its own weight, but it is necessary to stably support the roof material against the blowing force in a strong wind. Such a blowing force becomes larger relative to its own weight as the roof material is made of a light material such as a membrane material to reduce the weight of the roof structure. For this reason, if the upward blowing force exceeds the downward dead weight, the cable material may be slackened against this blowing force and cannot be supported, and the roof material may flutter and become unstable. is there.
In view of this, the roof structure described in Patent Document 1 resists the blowing force by a steel laterally stiffened beam or a tension cable that connects the laterally stiffened beam and the lower end of the column.
However, when steel laterally stiffened beams and tension cables are used, the advantage of weight reduction is impaired and the labor for construction increases, so that sufficient cost reduction cannot be achieved.

  An object of the present invention is to provide a roof structure and a method for constructing the same that can promote weight reduction and reduce the labor required for construction to sufficiently reduce costs.

  According to a first aspect of the present invention, there is provided a roof structure including a pair of support members that are separated from each other by a predetermined distance, an upper cable member that extends downwardly between the pair of support members, and the upper cable member. On the lower side, a lower cable member erected upwardly between the pair of support members, a plurality of vertical members laid between the upper and lower cable members, and a roof member supported by the plurality of vertical members. It is characterized by providing.

  Here, as the pair of supports, any structure such as a pillar projecting upward from a foundation structure such as a pile or a wall formed with a predetermined length can be employed. is there. Moreover, the upper and lower cable members may be provided so as to be separated from each other in the vertical direction, or may be provided so as to contact or intersect each other (a central portion). Furthermore, a pair of support members, upper and lower cable members and vertical members may be provided in one set or a plurality of sets. When only one set is provided, one end of the roof material is connected to the vertical member. What is necessary is just to make it support to a material and to make the other edge part support to another structural housing. On the other hand, when a plurality of sets of a pair of support bodies, upper and lower cable members, and vertical members are provided, both ends of the roof material may be supported by the vertical members, and the roof material is the same as in the case of one set. May be supported by the vertical member, and the other end may be supported by another structural frame (such as a column or a wall).

According to the above roof structure, the roof material is lifted and supported by the upper cable member and the vertical member laid in the downward convexity, and the strong wind acting on the roof material by the lower cable member and the vertical member laid in the upward convexity It can resist the upward force when the blowing force at the time exceeds its own weight, can ensure the stability of the roof surface without providing steel beams, etc., and can sufficiently promote weight reduction it can.
Moreover, since the tension cable etc. which connect a horizontal stiffening beam and a support | pillar like the past can be made unnecessary, the work effort concerning joining can be reduced.
As described above, the amount of steel can be reduced to reduce the weight, and the construction labor can be reduced. Therefore, the construction cost can be sufficiently reduced.

Moreover, the roof structure according to claim 2 of the present invention is the roof structure according to claim 1, wherein the pair of supports, the upper cable material, the lower cable material, and the plurality of vertical members. A plurality of support frames are arranged, and the roof material is installed between vertical members of the support frames.
According to such a structure, the space covered by the roof structure can be enlarged by laying the roof material between the vertical members of the plurality of support frames arranged, and can be used for large buildings and facilities. Can be applied.

In this case, the roof structure according to claim 3 of the present invention is the roof structure according to claim 2, characterized in that the plurality of support frames are arranged substantially parallel to each other.
According to such a configuration, by arranging a plurality of support frames substantially parallel to each other, the length dimension (span) of the roof material supported between them becomes substantially the same, and the member dimensions and joints Can be made common, and the workability and workability of the members can be improved.

According to a fourth aspect of the present invention, in the roof structure according to the second aspect, the plurality of support frames are arranged non-parallel to each other.
According to such a configuration, even when the planar shape of a building or facility is not irregular, that is, a rectangular shape or the like, a roof structure can be constructed in accordance with those shapes.

Furthermore, the roof structure according to claim 5 of the present invention is the roof structure according to any one of claims 2 to 4, wherein the plurality of support frames are of the pair of supports. One of them is shared and arranged.
According to such a configuration, by sharing one of the pair of support bodies and arranging the plurality of support frame bodies, for example, the plurality of support frame bodies are continuously arranged in the separation direction of the pair of support bodies. When arranging or arranging the support frames so as to cross each other, it is not necessary to arrange the supports in close proximity, and the number of constituent members can be reduced. And even if the span between the supports is long, by sharing the support, it is possible to suppress an increase in the cost of components such as cable members, and to reduce the total construction cost. .

On the other hand, the roof structure according to claim 6 of the present invention is the roof structure according to any one of claims 1 to 5, wherein the vertical member is a vertical cable member or a vertical rod member. Features.
According to such a configuration, the weight of the roof material is transmitted to the upper cable material as the tension of the vertical cable material or the vertical rod material, and the blowing force exceeding the weight of the roof material is the tension of the vertical cable material or the vertical rod material. Therefore, even when a vertical cable material is used, it is not slackened and the stability of the roof surface can be ensured. Furthermore, when the vertical cable member is used as the vertical member, further weight reduction of the roof structure can be promoted as compared with the case where the vertical member is formed of a steel member.

The roof structure according to claim 7 of the present invention is the roof structure according to any one of claims 1 to 6, wherein the roof material is supported by the plurality of vertical members. It is characterized by having a horizontal member and a film material stuck between these horizontal members.
According to such a configuration, the roof material can be further reduced in weight by configuring the roof material with the horizontal material and the membrane material, and even when the weight of the roof material is reduced in this way, Since the lower cable material can resist the blowing force, the roof material can be stably supported.

At this time, the roof structure according to claim 8 of the present invention is the roof structure according to claim 7, in which a guide member for guiding the horizontal member is bridged between the plurality of vertical members. The roofing material moves from the state in which the horizontal members are folded close to each other to the state in which the horizontal members are separated from each other by a predetermined distance, and the horizontal member moves along the guide member. It is configured to be stretchable.
According to such a configuration, since the horizontal member is guided along the guide member and the roof material is configured to be stretchable, the roof surface is configured by expanding the contracted roof material at the time of construction, and dismantling Sometimes it is possible to improve workability and dismantling, such as shrinking and removing the roofing material. In addition, work at heights for laying roofing materials is not required, so the number of work scaffolds and lifting equipment can be greatly reduced, reducing construction costs and improving safety during work. . Moreover, an openable / closable roof can also be comprised by shrinking | shrinking or expanding a roofing material as needed at the time of use.

Furthermore, the roof structure according to claim 9 of the present invention is the roof structure according to claim 8, comprising the pair of supports, the upper cable material, the lower cable material, and the plurality of vertical members. Forming a support frame, arranging a plurality of support frames substantially parallel to each other, spanning the guide members between the plurality of vertical members, and forming the plurality of horizontal members constituting the roof material; The membrane material is assembled to form a roof unit, and the roof unit is folded and supported by the guide member, and then the horizontal member is moved along the guide member to expand the roof unit. It is characterized by being.
A construction method for a roof structure according to claim 10 of the present invention is a construction method for a roof structure for constructing the roof structure according to claim 8, and is a pair of roof structures. A support frame is formed from the support, the upper cable material, the lower cable material, and a plurality of vertical members, and a plurality of the support frames are arranged substantially parallel to each other, and a guide member is bridged between the plurality of vertical members. In addition, a roof unit is formed by pasting a membrane material across a plurality of horizontal members, and the roof unit is supported by the guide member in a folded state, and then the horizontal member is formed along the guide member. And the roof unit is constructed by expanding the roof unit.
According to these configurations, first, a support frame is constructed, and after the roof unit that has been assembled in advance is supported by the guide member of the support frame in a contracted state, the roof unit is expanded along the guide member. Compared with the case of assembling the roofing material on the upper part of the support frame, the work at high places can be reduced, and the construction efficiency and the safety during work can be improved.

The roof structure according to claim 11 of the present invention is the roof structure according to any one of claims 1 to 8, wherein the upper cable member and the lower cable member are along the support. It is connected with the said support body through the connection member which can move vertically.
According to such a configuration, since the upper and lower cable members connected via the connecting member are configured to be movable up and down along the support body, the upper and lower cable members and the vertical members, and further the roof material are arranged near the ground. After assembling, the upper and lower cable members, the vertical members, and the roof member can be lifted to a predetermined height position by moving the connecting member to the upper part of the support. Therefore, since it is not necessary to assemble the upper and lower cable members, vertical members, and roof members at a high place, the construction efficiency and the safety during work can be improved. At this time, various methods can be adopted as a method of moving the connecting member to the upper portion of the support, for example, a method of attaching a jack to the connecting member and jacking up the connecting member with this jack, or a connecting member. A method of lifting with a crane or the like can be adopted.

At this time, the roof structure according to claim 12 of the present invention is the roof structure according to claim 11, wherein the pair of supports are formed, and the connecting member is formed below the support. The upper cable member and the lower cable member are connected, the vertical member is connected to the upper and lower cable members, and the roof member is supported by the vertical member, and then the connecting member is moved upward along the support body. It is constructed to be fixed to the support at a predetermined position.
According to such a configuration, the upper and lower cable members, the vertical members, and the roof member, which have been assembled in advance, are lifted to a predetermined height position of the support body and installed at the high place as described above. The work can be reduced to increase the construction efficiency and safety during work.

Furthermore, the roof structure according to claim 13 of the present invention is the roof structure according to claim 11 or claim 12, wherein the upper and lower cable members and the longitudinal member are provided between the pair of supports. The cable units to be constructed are installed in one set, the roof material is supported for each cable unit, and the connecting member is provided for each upper cable material and lower cable material. And
According to such a configuration, one cable unit and one of the cable units of a set (for example, one set on the left and right in the separation direction of the pair of support bodies) are supported by the cable unit. The roof material can be lifted and installed at a predetermined height position of the support, and then the other cable unit and the roof material supported by the other cable unit can be lifted and installed. Therefore, in the case of a roof structure in which a plurality of pairs of supports are provided and the roofing material is provided in multiple spans, the cable unit and the roofing material can be lifted and installed for each span, making the construction procedure efficient. Can be

On the other hand, a construction method for a roof structure according to claim 14 of the present invention is a construction method for a roof structure for constructing the roof structure according to claim 13, wherein the cable unit constitutes the roof structure. And a pair of supports, and upper and lower connecting members are attached to the support, and after the cable unit is attached to the upper and lower connecting members, the connecting members are raised along the support. After fixing the upper connecting member to the support body at a predetermined position, the lower connection member is pulled down with a predetermined force before fixing and then fixed to the support body at the predetermined position. A predetermined initial tension is introduced into the structure.
At this time, calculate the value of the force that pulls the lower connecting member downward by pre-calculation, etc., and in actual construction, pull the lower connecting member downward using a jack or the like, and determine the jack force at that time. By pulling down to the calculated value while measuring, a predetermined initial tension can be surely introduced into the cable unit.

  According to the roof structure of the present invention and the construction method thereof as described above, the weight reduction can be promoted and the labor and time can be reduced to sufficiently reduce the cost.

Hereinafter, each embodiment of the present invention will be described with reference to the drawings.
In the second and subsequent embodiments, the same constituent members as those described in the first embodiment and the constituent members having the same functions are denoted by the same reference numerals as those in the first embodiment. Those descriptions are omitted or simplified.

[First Embodiment]
FIG. 1 is a perspective view showing a roof structure 1 according to the first embodiment of the present invention. FIG. 2 is a side view showing the support frame 10 of the roof structure 1. FIG. 3 is a perspective view showing a part of the roof structure 1 in cross section. 4 and 5 are enlarged side views of a part of the roof structure 1. FIG. 6 is an enlarged side view showing a connection portion of the roof material 20 in the roof structure 1. FIG. 7 is a perspective view showing a construction procedure of the roof structure 1.

1 to 5, a roof structure 1 is provided so as to cover an upper part of a predetermined section 2 in a predetermined facility (for example, a waste disposal site), and a plurality of (four in this embodiment) support. The frame body 10 and a roof material 20 provided between the support frame bodies 10 are provided.
The support frame 10 includes a pair of pillars 11 as a pair of support bodies provided to be separated from each other by a predetermined distance, an upper cable member 12 erected downwardly between the pair of pillars 11, and the upper cable member 12. On the lower side, there is a lower cable member 13 that is laid upward and convex between a pair of column bodies 11, and a plurality of vertical cable members 14 that are laid between the upper and lower cable members 12 and 13. It is configured. The plurality of support frames 10 are arranged substantially parallel to each other and at substantially equal intervals.

  The column 11 of the support frame 10 is a column made of steel pipe, reinforced concrete, or steel reinforced concrete, and is fixed to a pile (for example, steel pipe pile) 15 driven into the ground, and protrudes upward from the ground. ing. The upper cable member 12 is connected to the vicinity of the upper end of the column body 11, and one end of the oblique cable member 16 is connected to the vicinity of the upper end of the column body 11 on the side opposite to the upper cable member 12. The other end of the diagonal cable member 16 is connected to a foundation 17 fixed to the ground. Of the tension of the upper cable member 12, a horizontal component force is applied to the foundation 17 and the ground via the oblique cable member 16. It is to be transmitted.

The upper and lower cable members 12 and 13 are flexible linear members formed by twisting a plurality of steel wires or PC steel wires, and are suspended in a downward or upward convex shape in a parabolic shape, respectively. Yes. The both ends of the upper and lower cable members 12 and 13 are joined to the column 11 via appropriate joining members 121 and 131 (FIG. 4), and the oblique member is connected to the joining member 121 of the upper cable member 12. One end of the material 16 is joined.
The vertical cable member 14 is a linear member similar to the upper and lower cable members 12 and 13, and is connected substantially vertically between the upper and lower cable members 12 and 13. Are disposed at substantially equal intervals. A horizontal connecting member 18 is laid substantially horizontally across the plurality of vertical cable members 14 at a substantially central position in the height direction of the vertical cable member 14, and a roof material 20 is joined to the horizontal connecting member 18. ing.

  The roof material 20 includes a truss body 21 as a plurality of horizontal members joined to the horizontal connecting member 18 and supported by the vertical cable member 14, and a membrane material 22 pasted between the truss bodies 21. It is configured. The truss body 21 includes an upper chord member 211, a lower chord member 212, a diagonal member 213 connecting the upper chord member 211 and the lower chord member 212, and a fixed cross member provided on the upper chord member 211 to fix the membrane member 22. (Racing bar) 214. The plurality of truss bodies 21 are arranged so as to be separated by an interval corresponding to two vertical cable members 14 in the support frame 10. Moreover, the film material 22 is installed so as to be a mountain at the position of the truss body 21 and to be a valley at an intermediate position between the truss bodies 21, and a center rope 23 (FIG. 3) is located at the valley position of the film material 22. Is provided. The center rope 23 is attached to the lower side of the membrane material 22, and both ends are connected to the vertical cable material 14 in a state where the valley position of the membrane material 22 is pulled downward, so that the membrane material 22 can be stretched without slack. It can be done. Further, the center rope 23 is tensioned downward by a pull-down belt 25 that is a tension member provided crossing at a predetermined interval. The end of the pull-down belt 25 is connected to the lower chord member 212 of the truss body 21. Tightened so as not to loosen. In this manner, the lifting of the center rope 23 is prevented by the pull-down belt 25, so that the film material 22 can be prevented from slacking and the stability can be ensured.

  The above roof material 20 is supported between the vertical cable members 14 of the adjacent support frame 10 and is connected to the roof material 20 of the adjacent span at the position of the support frame 10 as shown in FIG. . That is, the truss bodies 21 of the adjacent roof materials 20 are connected to each other by the roof connecting member 24, and the membrane materials 22 are connected to each other by the sewing membrane material 221. In addition, in FIG. 6, the case where there is a step difference between the adjacent roof materials 20 is illustrated, but the roof connecting member 24 and the suture film material 221 are similarly used when there is no step, It is natural that adjacent roof materials 20 can be connected to each other.

  In the support frame 10 and the roof material 20 as described above, the horizontal connecting member 18 that is installed on the vertical cable member 14 functions as a guide member, and the truss member 21 is slidably guided on the upper surface of the horizontal connecting member 18. Guide rails are formed. A pulley 215 that can roll on the guide rail is provided at the end of the truss body 21, and the truss body 21 extends along the horizontal connecting member 18 in each span between the pair of support frames 10. It is configured to be movable. That is, the roofing material 20 is configured to be extendable from a state in which the plurality of truss bodies 21 are brought close to each other and the membrane material 22 is folded to a state in which the truss bodies 21 are separated from each other by a predetermined distance and the membrane material 22 is expanded. .

Such a roof structure 1 is constructed by a construction procedure as shown in FIG.
That is, first, the support frame 10 is constructed at the construction site. As a construction procedure of the support frame 10, the pile 15 is driven into the ground and the foundation 17 is constructed, and then the column body 11 is erected on the upper side of the pile 15. Then, the upper and lower cable members 12 and 13 and the vertical cable member 14 connected to each other in advance are lifted, and the upper and lower cable members 12 and 13 are joined to the column body 11 via the joining members 121 and 131. Further, the oblique cable member 16 is connected to the upper joining member 121 and the foundation 17. At this time, the upper and lower cable members 12 and 13 and the oblique cable member 16 may be tensioned with a jack or the like, so that a predetermined tension force is introduced into each of these cable members so that no slack is generated. Thereafter, the horizontal connecting member 18 is installed between the vertical cable members 14. Thus, the construction of the support frame 10 is completed.

Next, the roofing material 20 (roof unit 20A) that has been assembled and unitized in advance at a predetermined size in a processing factory or the like is transported to a construction site by a trailer or the like in a folded state, and the roof unit 20A is supported by a support frame. It is lifted and installed on the horizontal connecting member 18 of the body 10. Thereafter, the truss body 21 is moved to a predetermined position along the horizontal connecting member 18 to widen the roof unit 20A, and the truss body 21 is fixed to the vertical cable member 14 of the support frame 10, and the roof unit 20A The membrane materials 22 are connected to each other, and the center rope 23 is connected to the vertical cable material 14. And between the adjacent support structures 10, the roof units 20A are sequentially installed in the same manner, and in the adjacent roof units 20A across the support structure 10, the truss bodies 21 are connected by the roof connecting member 24, The membrane materials 22 are connected by a suture membrane material 221.
The construction of the roof structure 1 is completed as described above.

According to this embodiment, there are the following effects.
(1) That is, the roof material 20 is lifted and supported by the upper cable member 12 and the vertical cable member 14 installed in the downwardly convex manner, and the roof material 20 is supported by the lower cable member 13 and the vertical cable member 14 provided in the upwardly convex manner. It can resist the upward force when the blowing force during strong winds exceeds its own weight, ensuring the stability of the roof surface without installing steel beams etc., and sufficiently reducing the weight Can be promoted.

(2) And, by resisting the upward force by the lower cable member 13, it is possible to eliminate the need for a tension cable or the like for connecting the horizontal stiffening beam and the support column as in the prior art. be able to. Therefore, the amount of steel can be reduced and the weight can be reduced, and the construction labor can be reduced, so that the construction cost can be sufficiently reduced.

(3) Furthermore, the space covered by the roof structure 1 is increased by arranging the plurality of support frames 10 substantially in parallel with each other and laying the roof material 20 on a plurality of spans between the vertical cable members 14. It can be applied to large-scale facilities, and the length (span) of the roofing material 20 is substantially the same, so that the member dimensions, joint fittings, etc. can be made common, and the member processing And workability can be improved.

(4) By connecting the upper and lower cable members 12 and 13 with the vertical cable member, the weight of the roof member 20 is transmitted to the upper cable member 12 as the tension of the vertical cable member 14, and the upward force in a strong wind is generated. The tension is transmitted to the lower cable member 13 as the tension of the vertical cable member 14, and the stability of the roof surface can be secured, and the weight reduction of the roof structure 1 can be promoted.
Furthermore, since the roofing material 20 is configured to have the membrane material 22, the weight of the roofing material 20 is realized. Even when the weight of the roofing material 20 is reduced in this way, the blowing force in a strong wind can be reduced. Can be resisted by the lower cable member 13, so that the roof member 20 can be stably supported.

(5) Since the unitized roof unit 20A is configured to be extendable and the roof surface is formed by installing the contracted roof unit 20A on the support frame 10 and then expanding the roof unit 20A, the support frame is formed. Compared to the case of assembling the roofing material 20 at the upper part of 10, the work at high places can be reduced and the construction efficiency can be increased. In addition, work at heights for laying roofing materials is not required, so the number of work scaffolds and lifting equipment can be greatly reduced, reducing construction costs and improving safety during work. .

[Second Embodiment]
Next, a second embodiment of the present invention will be described with reference to FIGS.
FIG. 8 is a side view showing a roof structure 1A according to the second embodiment of the present invention. 9A and 9B are a cross-sectional view and a vertical cross-sectional view showing a part of the roof structure 1A in an enlarged manner.
The roof structure body 1A of the second embodiment is different from the first embodiment in the structure of the support frame and the construction method of the roof material, and the other structures are substantially the same. The differences will be described in detail below.

  In FIG. 8, the roof structure 1 </ b> A includes three column bodies (support bodies) 11 provided at substantially equal intervals, and two upper and lower cable members 12 installed between the three column bodies 11. 13. A support frame 10A having a plurality of vertical cable members (vertical members) 14 installed between the upper and lower cable members 12 and 13 and a support frame 10A arranged in the depth direction of the figure. And the roofing material 20 made. Out of the three column bodies 11 of the support frame 10A, the upper and lower cable members 12 and 13 on both the left and right sides are connected to the central column body 11. In other words, the support frame 10A includes two support frames 10 of the first embodiment arranged side by side, and one of the pair of column bodies 11 in the support frame 10 (the central column body 11). ). An oblique cable member 16 is connected between the upper portions of the left and right column bodies 11 and the foundation 17. In addition, the ground surface of the predetermined section 2 in the facility covered with the roof structure 1A has a lower central portion, whereby the central column 11 is formed longer than the other two columns 11. Yes.

  In the support frame 10 </ b> A, the upper cable member 12 is coupled to the column body 11 via a coupling member (jack-up ring) 122 that is movable up and down along the column body 11 as shown in FIG. 9. 9 shows the upper part of the central column 11 in FIG. 8, the upper cable member 12 is similarly connected to the column 11 via the connecting member 122 in the left and right columns 11. ing. The connecting member 122 is an annular member that has a substantially I-shaped cross section and can be inserted through the column 11 with a margin, and is bolted to a gusset plate 111 that is fixed to the side surface of the column 11. Further, the connecting member 122 is fixed to one column body 11 in a pair of upper and lower parts, and the two upper cable members 12 (12A, 12B) on the left and right sides are connected to the upper and lower connecting members 122, respectively. . That is, the upper cable member 12A connected to the upper connecting member 122 supports the roof member 20 on the back side in the depth direction in FIG. 8, and the upper cable member 12B connected to the lower connecting member 122 is connected to the upper cable member 12A. In FIG. 8, the roof material 20 on the near side in the depth direction in the drawing is supported.

The construction procedure of such a roof structure 1A is as follows.
That is, first, the pile 15 is constructed and the column body 11 is erected. The upper and lower connecting members 122 are inserted into the column body 11 and temporarily fixed to the lower portion of the column body 11. The jack 113 is installed via the temporary base 112. Then, the upper cable member 12A is connected to the upper connecting member 122, and the vertical cable member 14 and the lower cable member 13 are connected to the upper cable member 12A to constitute one cable unit. The roof material 20 on the back side in the depth direction 8 is supported. The same operation is also performed on the supporting frame 10 </ b> A that opposes the depth direction rear side in FIG. 8, and then the upper connecting member 122 is jacked upward along the column body 11 with a lifting material suspended from the jack 113. Then, one cable unit is lifted upward, and the upper connecting member 122 is fixed to the gusset plate 111.

Next, similarly, the upper cable member 12B is connected to the lower connecting member 122, and the vertical cable member 14 and the lower cable member 13 are connected to the upper cable member 12B to constitute the other cable unit. The roof material 20 on the near side in the depth direction in FIG. The same operation is performed on the support frame 10A facing the front side in the depth direction of FIG. 8, and thereafter, the lower connecting member 122 is moved upward along the column body 11 with a lifting material suspended from the jack 113. Jack up, lift the other cable unit upward, and fix the lower connecting member 122 to the gusset plate 111. When the upper and lower connecting members 122 are fixed, the temporary base 112 and the jack 113 are removed from the upper end portion of the column 11. Thereafter, the lower cable member 13 corresponding to the upper cable member 12A connected to the upper connecting member 122 and the lower cable member 13 corresponding to the upper cable member 12B connected to the lower connecting member 122 are respectively columnar. 11 is joined.
The construction of the roof structure 1A is completed by sequentially performing the above operations for each span.

According to this embodiment, in addition to the effects (1) to (4), there are the following effects.
(6) That is, since the upper cable members 12A and 12B connected through the connecting member 122 are configured to be movable up and down along the column 11, the upper and lower cable members 12 and 13 and the vertical cable member 14 After assembling the roofing material 20 near the ground, the upper and lower cable members 12 and 13, the vertical cable member 14, and the roofing member 20 are moved to a predetermined height position by moving the connecting member 122 to the upper part of the column 11. It can be lifted and installed. Therefore, it is not necessary to assemble the upper and lower cable members 12 and 13, the vertical cable member 14, and the roof member 20 at a high place, so that the construction efficiency can be improved.

(7) Further, after one cable unit and the roofing material 20 are first lifted and installed, the other cable unit and the roofing material 20 are lifted and installed, so that the roofing material 20 is provided in a plurality of spans. However, the cable unit and the roofing material 20 can be lifted and installed for each span, and the construction procedure can be made efficient.

In addition, this invention is not limited to the said embodiment, Including other structures etc. which can achieve the objective of this invention, the deformation | transformation etc. which are shown below are also contained in this invention.
For example, in each of the embodiments described above, the plurality of support frame bodies 10 and 10A are arranged substantially parallel to each other. However, the present invention is not limited to this. For example, the support frame bodies 10 may be arranged non-parallel to each other. In addition, as shown in FIG. 10, the roof structure may be configured with a single support frame 10 </ b> A.

  Examples of the roof structure in which the support frames 10 are arranged non-parallel to each other include, for example, six column bodies 11 provided at the apex positions of substantially regular hexagons and the column bodies 11 at the apex positions opposite to each other. The thing provided with the three support frame bodies 10 which have the upper cable material 12 and the lower cable material (not shown) laid in between can be illustrated. That is, the three support frames 10 are arranged non-parallel to each other, and the upper and lower cable members in each support frame 10 intersect the upper and lower cable members of the other support frame 10 at a substantially central position of the hexagon. It is like that. And the roofing material 20 should just be supported between the adjacent support frame bodies 10 of the support frame bodies 10 which cross | intersected.

  Furthermore, as the roof structure in which the support frames 10 are arranged non-parallel to each other, for example, the six pillars 11 provided at the apex positions of the substantially regular hexagons and the substantially central position of the hexagons are provided. 6 support frames having a single column 11 and an upper cable member 12 and a lower cable member (not shown) installed between the column 11 at the hexagonal apex and the central column 11. The thing provided with the body 10 may be sufficient. That is, at least five of the six support frames 10 are arranged non-parallel to each other, and the column bodies 11 at the hexagonal center position need only be shared in each support frame 10.

  As shown in FIG. 10, the roof structure having a single support frame 10 </ b> A is similar to the support frame 10 </ b> A similar to that of the second embodiment, and between the single support frame 10 </ b> A and the wall 30. The roof structure 1D provided with the roof material 20 supported by can be illustrated. That is, the roof structure of the present invention is not limited to a structure in which a plurality of support structures are arranged to face each other and the roof material is supported between the support structures, as shown in FIG. It is sufficient that at least one end is supported by the longitudinal member of the support frame.

Moreover, in each said embodiment, although the support body was comprised with the column body 11, it may comprise not only this but a wall body and assembly members, such as a truss body. Furthermore, if the bending strength and rigidity of the support are sufficiently ensured, the oblique cable member 16 and the foundation 17 of the above embodiment can be omitted.
Further, the roofing material is not limited to the configuration of the above embodiment, and various roofing materials can be employed. For example, the roofing material may be a folded plate formed by bending a steel plate, and includes a truss body and a steel plate. It may be done.
Further, the construction method of the roof structure is not limited to the configuration of the above embodiment, and after constructing the support frame, a construction method in which individual roof materials are sequentially lifted and installed may be adopted. Alternatively, a method may be used in which a roof material having a size covering the entire facility is built near the ground and then lifted at once, jacked up or lifted up and installed on the support frame.

  In addition, when the cable unit is jacked up as in the second embodiment, the upper and lower connecting members 122 corresponding to the upper cable member 12 and the lower cable member 13 are attached to the column body 11, and the cable unit is connected to the upper and lower connecting members. After being attached to 122, these connecting members 122 are raised along the column 11, and the upper connecting member 122 to which the upper cable member 12 is connected is fixed to the column 11 at a predetermined height position. Before the lower connecting member 122 connected to the cable member 13 is fixed, the connecting member 122 may be pulled down with a predetermined force and then fixed to the column 11 at a predetermined height position. According to such a method, the value of the force that lowers the lower connecting member 122 downward is calculated by a prior calculation or the like, and the lower connecting member 122 is lowered downward by a jack or the like in actual construction. The predetermined initial tension can be surely introduced into the cable unit by pulling it down to the calculated value while measuring the jack force at that time.

In addition, the best configuration, method and the like for carrying out the present invention have been disclosed in the above description, but the present invention is not limited to this. That is, the invention has been illustrated and described with particular reference to certain specific embodiments, but without departing from the spirit and scope of the invention, Various modifications can be made by those skilled in the art in terms of material, quantity, and other detailed configurations.
Therefore, the description limiting the shape, material, etc. disclosed above is an example for easy understanding of the present invention, and does not limit the present invention. The description by the name of the member which remove | excluded the limitation of one part or all of such restrictions is included in this invention.

It is a perspective view showing the roof structure concerning a 1st embodiment of the present invention. It is a side view which shows the support frame of the said roof structure. It is a perspective view showing a section of the roof structure in section. It is a side view which expands and shows a part of said roof structure. It is a side view which expands and shows a part of said roof structure. It is a side view which expands and shows the connection part of the roof material in the said roof structure. It is a perspective view which shows the construction procedure of the said roof structure. It is a side view which shows the roof structure which concerns on 2nd Embodiment of this invention. (A), (B) is the cross-sectional view and longitudinal cross-sectional view which expand and show a part of said roof structure. It is a perspective view which shows the roof structure which concerns on the modification of this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10,10A ... Support frame, 11 ... Column (support), 12, 12A, 12B ... Upper cable material, 13 ... Lower cable material, 14 ... Vertical cable material (vertical material), 18 ... Lateral connection material (guide) Member), 20 ... roofing material, 20A ... roof unit, 21 ... truss body (horizontal material), 22 ... membrane material, 122 ... connecting member.

Claims (14)

A pair of supports provided separated by a predetermined distance;
An upper cable member laid in a downwardly convex manner between the pair of supports;
A lower cable member erected upwardly between the pair of supports on the lower side of the upper cable member;
A plurality of vertical members installed between the upper and lower cable members;
A roof structure comprising: a roof material supported by the plurality of vertical members. In the roof structure according to claim 1,
A plurality of support frames composed of the pair of supports, the upper cable member, the lower cable member, and the plurality of vertical members are arranged, and the roof material is installed between the vertical members of the support frames. A roof structure characterized by being made. In the roof structure according to claim 2,
The roof structure according to claim 1, wherein the plurality of support frames are arranged substantially parallel to each other. In the roof structure according to claim 2,
The roof structure according to claim 1, wherein the plurality of support frames are arranged non-parallel to each other. In the roof structure in any one of Claims 2-4,
The roof structure according to claim 1, wherein the plurality of support frames are arranged so as to share one of the pair of supports. In the roof structure in any one of Claims 1-5,
The roof structure is characterized in that the vertical member is a vertical cable member or a vertical rod member. In the roof structure in any one of Claims 1-6,
The roof material comprises a plurality of horizontal members supported by the plurality of vertical members, and a membrane material attached between the horizontal members. Structure. The roof structure according to claim 7,
A guide member for guiding the horizontal member is bridged between the plurality of vertical members,
The roof material expands and contracts by moving the horizontal member along the guide member from a state in which the horizontal members are folded close to each other and a state in which the horizontal members are separated and spread apart by a predetermined distance. A roof structure characterized by being configured. The roof structure according to claim 8,
A support frame is formed from the pair of support members, the upper cable member, the lower cable member, and the plurality of vertical members, and a plurality of the support frames are disposed substantially parallel to each other, and between the plurality of vertical members. The guide member is bridged to
The plurality of horizontal members and the membrane material constituting the roof material are assembled to form a roof unit, and the roof unit is folded and supported by the guide member, and then the horizontal member is moved along the guide member. A roof structure constructed by moving a frame and expanding the roof unit. A construction method of a roof structure for constructing the roof structure according to claim 8,
A support frame is formed from a pair of supports constituting the roof structure, an upper cable member, a lower cable member, and a plurality of vertical members, and a plurality of the support frames are arranged substantially in parallel with each other, The guide member is bridged between the vertical members,
A roof unit is formed by pasting a membrane material between a plurality of horizontal members, and the roof unit is folded and supported by the guide member, and then the horizontal member is moved along the guide member. A method for constructing a roof structure, wherein the roof structure is constructed by expanding the roof unit. In the roof structure in any one of Claims 1-8,
The said upper cable material and the lower cable material are connected with the said support body through the connection member which can move up and down along the said support body, The roof structure characterized by the above-mentioned. The roof structure according to claim 11,
The pair of supports are formed, and at the lower part of the support, the upper cable member and the lower cable member are connected to the connecting member, the vertical members are connected to the upper and lower cable members, and the roof A roof structure characterized in that, after a material is supported on the longitudinal member, the connecting member is moved upward along the support and fixed to the support at a predetermined position. The roof structure according to claim 11 or 12,
Between the pair of supports, a cable unit composed of the upper and lower cable members and the vertical member is installed in one set, and the roof member is supported for each of these cable units, A roof structure characterized in that the connecting member is provided for each cable member and lower cable member. A construction method of a roof structure for constructing the roof structure according to claim 13,
While forming the cable unit constituting the roof structure and a pair of supports, upper and lower connecting members are attached to the support,
After attaching the cable unit to the upper and lower connecting members, the connecting members are raised along the support, and the upper connecting member is fixed to the support at a predetermined position, and then the lower connecting member is fixed. A method for constructing a roof structure, wherein a predetermined initial tension is introduced into the cable unit by previously pulling downward with a predetermined force and then fixing to the support at a predetermined position.

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