JPS6333530B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for constructing a mesh skeleton dome used for all-weather baseball stadiums and the like.

A conventional method for constructing this type of mesh skeleton dome is to proceed inwardly and upwardly from the base circumference until reaching the final skylight. However, in the case of this construction method, the construction work position becomes higher as you move upwards inside the dome, so lifting and joining the roof panels or each rod member involves various inconveniences and dangers, prolonging the construction period. I couldn't escape it.

The present invention was proposed in view of the above circumstances, and its purpose is to provide a construction method that provides high work safety and shortens the construction period.

The construction method according to the present invention is a method for constructing a mesh skeleton dome comprising a substantially polygonal central dome portion and side wall dome portions divided and arranged corresponding to the sides of the substantially polygonal dome, the method comprising: Lift-up pillars are erected at each apex of the dome, and a central lift-up pillar is erected at the center of the dome.
The side wall dome portion is assembled on the ground in a state in which it is tilted inward, and then raised and supported by the lift-up support column; the central dome portion is assembled near the ground and raised by the lift-up center support column and the lift-up support column; The ends of the central dome portion and the side wall dome portions are connected, and all assembly is performed near the ground.

The present invention will be described below based on an illustrated embodiment. As shown in FIGS. 1 and 2, the mesh skeleton dome D includes a substantially hexagonal central dome portion D1 having a skylight W in the center, and side wall domes divided into sections corresponding to the sides of this substantially hexagonal shape. A lift-up pillar 2 is provided at each vertex of the central dome part D1, and a lift-up central pillar 1 is erected at the center of the dome so that its head protrudes from the dome when completed.

In such a configuration, as shown in FIG. 3, a concrete foundation 3 with a triangular cross section is poured, and first, three of the six side wall dome parts D2a at intervals are placed on the concrete foundation 3. It is assembled on the ground using an assembly frame 4 which also serves as a guide, with the inner surface facing downward. Here, wheels 5 are protruded from the lower ends of both ends of the side wall dome portion D2a, and guide rails 6 are laid on the foundation 3 surface corresponding to the wheels 5.
A is movable inward. From this state, the wire rope of the support column 2 is connected to the tip of the side wall dome portion D2a and raised, and the side wall dome portion D2a is supported by the support column 2. In this case, the side wall dome portion D2a is supported by the support column 2 with the jacks 13 so as to be slightly open from the time of completion.

Next, the remaining three side wall dome portions D2b are assembled and raised in the same manner as described above to be supported by the pillars 2.

Next, the lift-up central column 1 is provided with a tower crane 7 therein and has a lifting ring 8 supported so as to be movable up and down. As shown in FIG. 7, the central part of the central dome part D1 is assembled on the ground, lifted to the minimum height at which the entire central dome part D1 can be assembled, and then the truck crane 9
Assemble the remaining central dome portion D1 using the support 10. As shown in FIG. 8, the central dome portion D1 is lifted up by the lifting ring 8 and the lifting tool 11 attached to the support column 2.
and the side wall dome portion D2 are connected to each other.
Here, the connecting member 12 may be interposed between the ends. Furthermore, side wall dome portions D2a and D
2b and the circumferential ends thereof are connected to each other. Once the connection is complete, remove supports 1 and 2.

As a method of assembling the side wall dome part, the 10th
As shown in FIG. 11, the method of supporting the side wall dome portion D2 is as follows:
3, the connecting end is supported by the lift-up column 2 so that it is slightly open compared to when completed, or as shown in FIGS. Side wall dome part D2
There is a method in which the side wall dome part D2 is supported so that a gap is created between the center dome part D1 and the center dome part D1 is lifted up, and then the side wall dome part D2 is moved inward to bring the ends into contact with each other. be. In this case, it is also possible to connect three spaced side wall dome parts D2a among the six side wall dome parts D2 to the central dome part D1 and then connect them to the remaining side wall dome parts D2b.

As described above, according to the present invention, most of the assembly work can be performed near the ground, so the safety of the work is high and the construction period can be shortened. It requires almost no high-lift crane and is effective for constructing large domes.

[Brief explanation of the drawing]

1 and 2 are a plan view and a vertical sectional view showing a mesh skeleton dome according to the present invention, FIG. 3 is a schematic diagram showing a wheel portion of a side wall dome portion, and FIGS. 4, 5, and 6. , Fig. 7, Fig. 8, and Fig. 9 are longitudinal cross-sectional views showing the method of constructing this dome in order of process, and Fig. 10.
11 are a plan view, a vertical cross-sectional view, FIG. 12, and FIG.
The figures are a plan view and a longitudinal sectional view showing a similar second embodiment. 1... Central support for lift-up, 2... Support for lift-up, 3... Concrete foundation, 4...
Truck crane, 5... Wheels, 6... Guide rail, 7... Tower crane, 8... Lifting ring,
9...Truck crane, 10...Support, 1
1... Hanging tool, 12... Connection member, 13... Jacket.

Claims (1)

[Claims] 1. A method for constructing a mesh skeleton dome consisting of a substantially polygonal central dome part and side wall dome parts divided and arranged corresponding to the sides of the substantially polygonal dome part, the method comprising lifting up each vertex part of the central dome part. At the same time, a central support for lift-up is erected in the center of the dome, and the side wall dome is assembled on the ground with the side wall dome inwardly tilted, and then raised and supported by the lift-up support, so that the central dome is supported by the lift-up support. A method for constructing a mesh skeleton dome, which comprises assembling the dome near the ground, lifting it up using a lift-up central column and a lift-up column, and connecting the ends of the central dome part and the side wall dome parts.