JP3426339B2 - Construction method of large building with dome roof - 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 a large building having a dome roof suitable for use in athletic facilities such as baseball and soccer or other large-scale facilities.

[0002]

2. Description of the Related Art In recent years, large-scale buildings having a dome roof have been constructed in order to perform athletic games such as baseball without being influenced by the weather. Such a large building, on the outer peripheral structure that constitutes the periphery of the large building,
It is constructed by constructing a dome roof. A steel truss structure is widely known as a structure type of a dome roof, but this steel truss structure is a multi-layer truss that connects structural steel aggregates in a three-dimensional truss shape and provides relatively good structural stability. , Is categorized as a single-layer truss dome that consists of structural steel aggregates connected in a plane truss.

By the way, in the past, for example, when constructing a large building having a dome roof of a steel truss structure type, while constructing the outer peripheral structure with reinforced concrete or the like, a steel span truss with a large span required for the roof frame is constructed. It is configured as a unit steel truss that has been divided into a plurality of parts in advance, and after this is erected in the inner area of the outer peripheral structure, it is sequentially lifted by a large heavy machine, and at the position where the roof is to be erected, these unit steel trusses are welded or bolted together. By doing so, a method of assembling a steel span truss with a large span and constructing a roof frame on the outer peripheral structure was adopted.

[0004]

However, in the construction method as described above, the construction period is prolonged because a large number of unit steel frame trusses are individually lifted and assembled by a large heavy machine, and the erection work is also performed. There is also a problem that the workability is poor because most of the work is done in high places. In addition, during the construction period of the dome roof, a considerable number of vent gantry and jack devices that have a function as supporting work for supporting the roof frame from the inside are required, and these are installed inside the entire outer peripheral structure. Therefore, there is also a problem that the internal work space cannot be wide. Furthermore, in order to construct a dome roof with such a large span by the conventional method,
Since the roof itself will be of considerable scale and height, how to build it,
There is also a problem that the heavy equipment to be removed needs to be extremely large, and accordingly, the construction cost is also increased accordingly.

The present invention has been made in view of the above circumstances. The workability of the dome roof is improved to shorten the construction period,
In addition, the amount of vent gantry and jacking equipment used can be reduced to reduce construction costs and improve workability by securing internal working space, and also to reduce the size and size of heavy equipment for erection and removal. It is an object of the present invention to provide a method for constructing a large building having a dome roof that can be used.

[0006]

In order to achieve the above-mentioned object, the invention according to claim 1 of the present invention constructs a dome roof within the inner region of the outer peripheral structure constituting the periphery of a large building. A method for constructing a large building having a dome roof which is raised on the outer peripheral structure by elevating the dome roof, wherein a plurality of steel aggregates are arranged radially when the dome roof is erected. Together with constructing a tension string beam by connecting a cable to the steel aggregate and introducing tension into this cable, while constructing the outer peripheral structure,
After constructing a ring frame on the ground, construct a wall skeleton by assembling multiple steel frames in a truss shape on this ring frame, and then construct this wall skeleton.
Connect one end of the stay cable to the center of the outer circumference of
Connect the other end of the stay cable to the ring frame
Then, the wall skeleton is erected by elevating the dome roof formed by applying a roof membrane to the string beam.
On the dome roof, one end of the bracing cable
Connect the other end of the bracing cable to
It is characterized by being connected to the center of the inner circumference of the skeleton .

According to a second aspect of the present invention, in the method for constructing a large building having a dome roof according to the first aspect, when raising the dome roof, a jack is installed at an upper end portion of the wall skeleton. The feature is that the dome roof is lifted and lifted by a jack.

[0008]

According to the method for constructing a large building having a dome roof according to claim 1 of the present invention, by using the vent gantry or jack by constructing the dome roof in the inner area of the outer peripheral structure. The amount of work will be reduced to improve the workability by reducing the construction cost and securing the internal work space, and also to reduce the size and weight of heavy equipment for construction and removal. Further, when framing the dome roof, by arranging a plurality of steel aggregates radially, connecting a cable to the iron aggregates and introducing tension to this cable to construct a string beam,
While maintaining the final shape, the strength of the dome roof does not decrease, and the weight of the dome roof itself becomes lighter than that of the conventional truss structure roof frame structure. Therefore, a large heavy machine is not required when raising the dome roof, and the raising speed can be increased, thereby improving the efficiency of the dome roof erection work.

Further, in constructing an outer peripheral structure for constructing a dome roof, after constructing a ring frame which is a lower skeleton on the ground, a wall skeleton is constructed on the ring frame, thereby removing the wall skeleton from the ring frame. The wall skeleton can be used as a lift-up mount for raising the dome roof.

In the method for constructing a large building having a dome roof according to claim 2, a jack for raising the dome roof is installed at the upper end of the wall skeleton, and the dome roof is raised by this jack. Securely install the dome roof on the upper end of the wall skeleton.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a method for constructing a large building having a dome roof according to the present invention will be described below with reference to the drawings. In FIG. 1 and FIG. 3, reference numeral S indicates a large building constructed by applying the construction method of this embodiment. The large-scale building S is mainly composed of an outer peripheral structure 1 that forms the periphery thereof and a dome roof 2 that is installed on the outer peripheral structure 1.

In the large building S having the above-mentioned structure, basically, while the outer peripheral structure 1 is constructed, the dome roof 2 is grounded in the inner region of the outer peripheral structure 1, and the grounded dome is constructed. It is constructed by elevating the roof 2 and installing it on the outer peripheral structure 1. The details of this construction will be described below. First, as shown in FIG. 2A, the piles 3 are driven into the outer peripheral portion where the outer peripheral structure 1 is to be constructed at predetermined intervals in the circumferential direction, and the ground G in the inner region of the outer peripheral structure 1 is improved. . Next, as shown in FIG. 2B, a foundation frame 4 is formed on the piles 3 and the dome roof 2 is supported when the dome roof 2 is erected on the ground G. Bent 5 ... is erected using a crane 6.
These vents 5 are erected radially from the central portion of the ground G at predetermined intervals in the circumferential direction in a plan view, and the height of the vents 5 is set to be lower as the vents 5 on the outer peripheral side. There is.

Next, as shown in FIG. 2 (c), a lower skeleton 7 is constructed on the basic skeleton 4, and a plurality of steel aggregates 8 constituting the skeleton of the dome roof 2 are erected.
The lower skeleton 7 constitutes a lower part of the outer peripheral structure 1, and is formed in a ring shape that is substantially elliptical as a whole in a plan view. More specifically, the lower skeleton 7
As shown in FIG. 3, the main body 7a is formed in a sawtooth shape in the radial direction so as to extend in the circumferential direction in an elliptical shape, and a large number of foot portions 7b extending downward from each apex of the main body 7a. …
It consists of and. As shown in FIG. 1, the steel frame members 8 are radially connected to a compression ring 9 and are arranged in a substantially circular shape in a plan view, and are formed in a dome shape that is curved upward as a whole, and are bent downward by the vents 5. Supported by.

Next, as shown in FIG. 2 (d), a wall skeleton 10 formed by assembling a plurality of steel frames in a truss shape is constructed on the lower frame 7, and the steel frame material 8 assembled in the dome shape is ... By connecting the cable 11 to the cable 11 and introducing tension into the cable 11, the tension beam 1
Build 2. As shown in FIG. 1, the wall skeleton 10 is formed by combining a plurality of hollow beams 14 extending obliquely upward from the lower frame 7 toward the center side and a diagonal truss 15 ... As a lift-up base of No. 2 and after completion, the load applied to the roof and walls is smoothly transmitted to the lower frame 7.

Further, the cable 11 is connected to the steel frames 8 assembled in the dome shape as follows. That is, as shown in FIG. 1, the bundle members 16 and 17 are connected to each of the iron frame members 8 in a substantially vertical manner. The bundles 17 ... are located on the outer peripheral side of the bundles 16 ..., and the bundles 17 ... And the bundles 16 ... Are arranged concentrically with respect to the center of the stringed beam 12, respectively. A ring-shaped hoop cable 11a is connected to the lower ends of the bundles 17 and the lower ends of the bundles 17 are connected by the hoop cable 11a.

Further, a rod-shaped center strut 18 is vertically arranged at the apex portion of the tension string beam 12, and the radiation cable 11 is provided from the upper end portion of the center strut 18.
b extends radially, and the tip of the radiation cable 11b is connected to the compression ring 9. Further, the ends of the suspension cables 11c extending radially are connected to the upper ends of the bundles 17 ..., And the lower ends of the bundles 16 are connected to the middle of each suspension cable 11c. Further, the upper end of each bundle 16 and the lower end of the center strut 18 are connected by a suspension cable 11d. Further, the lower end of each bundle 17 and the outer end of the steel frame 8 are connected by a suspension cable 11e.

In this way, each of the cables 11a-11
After connecting e to the steel aggregate 8 ..., the hoop cable 11
Introduce tension to a. Then, this hoop cable 11
By a, tension is introduced into the cable 11e, and the tension string beam 12 having each steel aggregate 8 as a string is formed in a structure in which the balance of forces is completed as a whole. Note that tension is separately introduced to the cable 11c. Next, the roof membrane 20 is applied to the tension beam 12. In this construction, as shown in FIG. 4 and FIG. 5, a film piece 20 is provided between the steel aggregates 8 which are adjacent to each other in the circumferential direction.
It is carried out by sequentially applying a. The membrane piece 20a is wound around the spreader 21, and while moving the spreader 21 from the central portion of the tension string beam 12 to the outer peripheral portion thereof,
By unwinding 0a, the film piece 20a is installed between the adjacent steel frame members 8 and 8. The membrane piece 20a is fixed by bringing both edge portions of the membrane piece 20a into contact with the upper surface of the steel frame member 8 and tightening the bolts 24 with the rubber material 22 and the tie bar 23 at the both edge portions. In the figure, reference numeral 25 indicates an aluminum cover, and 26 indicates a water spray nozzle made of an aluminum pipe.

As described above, the roof membrane 20 is attached to the stringed beam 1.
When the dome roof 2 is completed by constructing the dome roof 2, the dome roof 2 is raised and installed on the upper end of the wall skeleton 10. This erection is performed as follows.
First, as shown in FIG. 6, a plurality of center hole jacks 28 ... Are attached to the upper end portion of the wall skeleton 10 at predetermined intervals in the circumferential direction via jack stands 29. The part is connected to the outer end of the steel aggregate 8 of the dome roof 2.
On the other hand, in the outer peripheral central portion of the wall skeleton 10,
As shown in FIG. 1, one end of a plurality of stay cables 30 ... Is connected at predetermined intervals in the circumferential direction, and the other ends of the stay cables 30 ... Are connected to the lower frame 7, respectively. Therefore, the wall skeleton 10 is supported by the stay cables 30 ...

Next, the step rods 28a ... Are raised synchronously to raise the dome roof 2 in a horizontal state, and the dome roof 2 is erected on the upper end portion of the wall skeleton 10. Since it is necessary to raise each step rod 28a evenly or while balancing the dome roof 2, it is desirable to control the center hole jacks 28 by computer control. When the dome roof 2 is installed on the upper end of the wall skeleton 10, the valley cables 31 ... And the bracing cables 32 ... Are attached as shown in FIG. The valley cable 31 has one end connected to the compression ring 9 and the bottom end connected to the stay cable 3.
Connect to one end of 0. At this time, each valley cable 31
Is passed between the adjacent steel aggregates 8 in the circumferential direction and on the roof membrane 20, and is disposed so as to press the roof membrane 20. Therefore, the roof membrane 20 is a membrane having a V-shaped cross section between the adjacent steel frames 8 and 8. In addition, the bracing cable 32 has one end portion thereof dome roof 2
Is connected to the lower end of the bundle 17, and the other end is connected to the center of the inner periphery of the wall skeleton 10.

By attaching the valley cables 31 ... And the bracing cables 32 in this way,
The dome roof 2 and the wall skeleton 10 are tightly connected. Further, the stay cables 30 ... Allow the force from the valley cables 31 ... to smoothly flow to the lower frame 7, and at the same time, work effectively against a horizontal load such as an earthquake or wind.

According to the construction method of the above-described embodiment, the dome roof 2 is grounded on the ground G in the inner area of the outer peripheral structure, so that the dome roof 2 is directly assembled at the high position where the roof frame is erected as in the prior art. Compared with the above, it is possible to inevitably reduce the amount of use of the vent gantry and the jack which support the roof frame. In addition, this makes it possible to increase the internal work space and improve workability. Furthermore, dome roof 2
Since it is assembled to the wall skeleton 10 after being erected, it is possible to reduce the size and weight of the heavy machine for building and removing it as compared with the conventional one. Further, when assembling the dome roof 2, a plurality of steel aggregates 8 are arranged radially and the cables 11 (11a to 11a ...
11e) is connected and tension is introduced into the cable 11 to construct the stringed beam 12, so that the weight is lighter without lowering the strength as compared with the roof frame structure in which the conventional steel aggregate is connected in a truss shape. Become. Therefore, even when the dome roof 2 is raised, a large heavy machine is not required, and the raising speed can be increased, so that the efficiency of the erection work of the dome roof 2 can be improved.

When the outer peripheral structure 1 for constructing the dome roof 2 is constructed, a lower skeleton 7 is constructed on the ground, and then a plurality of steel frames are assembled on the lower skeleton 7 in a truss shape to form a wall skeleton 10. Since the wall skeleton 10 has been constructed, the wall skeleton 10 can be supported by the lower skeleton 7, and thus the wall skeleton 10 can be used as a lift-up mount for raising the dome roof 2. Further, since the center hole jack 28 for raising the dome roof 2 is installed on the upper end portion of the wall skeleton 10, the dome roof 2 can be securely attached to the upper end portion of the wall skeleton 10 by only raising the step rod 28a of the center hole jack 28. Since it is not necessary to secure a region for installing the jack inside the outer peripheral structure 1, it is possible to increase the internal work space and improve workability.

[0023]

As described above, according to the first aspect of the present invention.
According to the construction method of a large building with a dome roof,
Since the dome roof is erected within the inner area of the outer structure,
The workability of the dome roof is improved to shorten the construction period, and the amount of vent gantry and jack used is reduced to reduce the construction cost and improve the workability by securing the internal work space. It is possible to reduce the size and weight of the heavy machine for removing.

Further, when assembling the dome roof, a plurality of steel aggregates are radially arranged, and a cable is connected to the steel aggregates to apply tension to the cables to construct a string beam. Compared to a roof frame structure in which steel aggregates are connected in a truss shape, the weight of the roof frame is reduced while maintaining its final shape without lowering its strength. Therefore, even when the dome roof is raised, a large heavy machine is not required and the rising speed can be increased, so that the efficiency of the dome roof installation work can be improved.

When constructing the outer peripheral structure for constructing the dome roof, a wall skeleton is constructed by constructing a lower frame on the ground and then assembling a plurality of steel frames in a truss shape on the ring frame. Since it has been installed, the wall skeleton can be supported by the ring frame, and thus this wall skeleton can be used as a lift-up mount when raising the dome roof.

According to the method for constructing a large building having a dome roof of claim 2, since the jack for raising the dome roof is installed at the upper end portion of the wall skeleton, by raising the dome roof by this jack, The dome roof can be reliably erected on the upper end of the wall skeleton, and there is no need to secure the area for installing the jack inside the outer peripheral structure, so the internal work space is wide and the workability is improved. be able to.

[Brief description of drawings]

FIG. 1 is a cross-sectional view illustrating a large-scale building having a dome roof for explaining an embodiment of the present invention.

FIG. 2 is a schematic view showing steps of a construction method according to an embodiment of the present invention.

FIG. 3 is a perspective view showing a large building constructed by a construction method according to an embodiment of the present invention.

FIG. 4 is a perspective view of a roof for explaining an embodiment of the present invention, showing a state in which a roof membrane is being applied.

FIG. 5 is a sectional view of the roof membrane fixing portion.

FIG. 6 is a cross-sectional view of a main part showing a jack for raising a dome roof, for explaining one embodiment of the present invention.

[Explanation of symbols]

Large building 1 Peripheral structure 2 dome roof 7 Lower body (ring frame) 8 steel aggregate 10 Wall Skeleton 11 cable 12 chord beam 20 roof membrane

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Ikuo Tachido 2-10-10 Fujimi, Chiyoda-ku, Tokyo Maeda Construction Co., Ltd. (72) Satoshi Fujiwara 2--10-10 Fujimi, Chiyoda-ku, Tokyo Maeda Construction Industry Co., Ltd. (72) Inventor Makoto Nagao 2-10-10 Fujimi, Chiyoda-ku, Tokyo Maeda Construction Industry Co., Ltd. (56) Reference JP-A-6-26104 (JP, A) JP-A-4-26 30047 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) E04B 7/08 E04B 1/35 E04G 21/14

Claims (2)

(57) [Claims] 1. A large-scale building having a dome roof built in the inner region of an outer peripheral structure that forms the periphery of a large building, and the dome roof being raised and erected on the outer peripheral structure. A method of constructing a thing, wherein when constructing the dome roof, a plurality of steel aggregates are radially arranged, and a cable is connected to the steel aggregates and tension is introduced into the cables to construct a string beam. On the other hand, when constructing the outer peripheral structure, after constructing a ring frame on the ground, construct a wall skeleton by assembling a plurality of steel frames in a truss shape on the ring frame, and then constructing the wall skeleton. Out of
Connect one end of the stay cable to the center of the circumference,
The other end of Tay cable connected to the ring frame, the wall skeleton, bridged the Zhang Tsuruhari raises the dome roof formed by applying a roofing membrane, then, before
Connect one end of the bracing cable to the dome roof
The other end of this bracing cable to the wall
A construction method for a large building with a dome roof, characterized by being connected to the inner center of the skeleton . 2. The method for constructing a large building having a dome roof according to claim 1, wherein a jack is installed at an upper end portion of the wall skeleton when the dome roof is raised, and the dome roof is lifted by the jack. A method of constructing a large building with a dome roof, which is characterized in that the building is raised.