JPH0639807B2 - Construction method for large space buildings - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a construction method for a large space building.

(Prior Art) Conventionally, a large space building such as a gymnasium, a stadium or a factory is mainly constructed by a space frame (three-dimensional structure).

The space frame is constructed by assembling the basic grit of a space truss such as a quadrangle or a triangle according to the scale of the building, and is suitable for the construction of a large space building.

(Problems to be Solved by the Invention) However, in the conventional construction method for a large space building using a space frame, since the number of nodes of the space frame is at least 6 to 7, many members are three-dimensionally concentrated at one point. However, the number of members is greatly increased, and the nodes, that is, the joints are complicated, and assembly is inevitably complicated.

Further, in most cases, a work scaffold is required, which requires a great deal of labor and materials for installation of the work scaffold, which inevitably results in a large construction cost.

The present invention has been proposed in order to solve the above-mentioned conventional problems, and it is possible to construct a large space building very easily and in a short period of time without requiring a work scaffold at all. The purpose is to provide a construction method for large space buildings.

(Means for solving the problem) A construction method for a large space building in which a feeler arch is assembled from a nodal unit consisting of a short pipe with a joint flange attached to the end and an intermediate unit. Material and lower chord material, bundle material that connects the middle of upper chord material and lower chord material, tie material that protrudes at right angles from both sides of the approximate center of the lower chord material, and approximately the center side of the upper chord material and the tip of the tie material The diagonal unit is rigidly joined to form an integral unit, and the intermediate unit is composed of an upper chord member or a lower chord member made of a tube joined to the upper chord member or the lower chord member, respectively. It is characterized in that it is installed while being alternately joined in a grid pattern in the center direction of the span of the fieldend arch.

(Example) Hereinafter, the present invention will be described with reference to an illustrated example.

In the construction method according to the present invention, the nodal unit 1 and the intermediate unit 2 are used as a basic grit, and the nodal units 1 and the intermediate unit 2 are alternately connected in the longitudinal direction to form arched fieldel arches 3, 3. The roof frame of a large space building is constructed by connecting the adjacent fieldend arches 3 and 3 in parallel with the construction of the fieldend arches 3 and 3 at regular intervals in the width direction. It is a construction method to build and then attach roof panels to this roof frame.

The node unit 1 is composed of a short tubular body, an upper chord member 4, a lower chord member 5, a bundle member 7 connecting the upper chord member 4 and the lower chord member 5, and a substantially central portion of the lower chord member 5 at substantially right angles to both sides. It is composed of protruding connecting members 8 and 8 and diagonal members connected to the substantially central both sides of the upper chord member 4 and the tips of the connecting members 8 and 8.

The upper chord member 4 and the bundle member 7, the lower chord member 5 and the bundle member 7, the lower chord member 5 and the connecting members 8 and 8, and the upper chord member, the connecting member, and the diagonal member are rigidly and integrally joined by welding.

In addition, all of these members are formed of short steel pipes, and the lower chord member 5 is the thickest, followed by the connecting members 8, 8, the upper chord member 4, the bundle member 7, and the diagonal member in order of decreasing diameter. .

Furthermore, as the bundle 7 of the node unit 1 installed in the central portion of the feeler arch 3 becomes the longest and shifts to both sides, the bundle 7 of each node unit 1 gradually becomes shorter. .

Further, a joining flange 9 having a diameter slightly larger than the diameter of each member is formed at the tip of each member except the bundle 7.

The middle unit 2 is the upper chord member 4 or the upper chord member 10 and the lower chord member 1
1 and 1. A steel pipe having the same diameter as the upper chord member 4 and the lower chord member 5 of the node unit 1 is used for the upper chord member 10 and the lower chord member 11, and the upper chord member 10 and the lower chord member 1 are used.
The joint flanges 12 each having a diameter slightly larger than the diameters of these members are formed at both ends of the member 1.

Further, column base units 13, 13 are attached to the column bases at both ends of the feeler arch 3.

The column base unit 13 is similar to the node unit 1 in that the upper chord 4 and the lower chord member 5 and the bundle member 7 that connects the upper chord 4 and the lower chord member 5 together.
And connecting members 8, 8 projecting at right angles to both sides of the lower chord member 5.

In the column base unit 13 and the node unit 1, the upper chord member 4 and the lower chord member 5 are rigidly joined by the bundle member 7 at the tip end portions thereof, and the connecting members 8 and 8 project perpendicularly to both sides at the tip end portion of the lower chord member 5. The upper chord member 4 and the lower chord member 5 are different from each other in that they are connected at one point, and the other configurations are exactly the same.

Next, the construction method for large space buildings will be explained step by step.

First, the substructure 14 of the large space building is constructed.

Vertical arches 15 and 15 and horizontal arches 16 and 16 are installed in the lower structure 14 so as to face each other.

Subsequently, the column base units 13, ... Are installed in the horizontal arches 16, 16 of the lower portion 14 in their longitudinal direction at regular intervals.

Each column base unit 13 has a horizontal arch 16, 1 at its base end.
6 is attached to each of the pins 6 and is supported by the work scaffold 17 in a state of being inclined inside the lower structure 14.

In addition, the connecting material 8 between the adjacent column base units 13, 13,
Of the column base units 13, ..., The outer connecting members 8,8 of the column base units 13,13 located at the outermost ends of the column base units 13, ... Are pinned to the vertical arches 15,15, respectively.

The joint materials 8 and 8 are connected by bolting the joint flanges 12 and 12 with a plurality of high-strength bolts.

Vertical arch 1 by connecting the connecting materials 8
One arch frame is constituted by the connecting members 8, 5, ... Between the columns 5, 15, and as a result, each column base unit 1
3 and 13 can stand on their own without a work platform.

Subsequently, the upper chord member 10 and the lower chord member 11 of the intermediate unit 2 are connected to the tip portions of the upper chord member 4 and the lower chord member 5 of each column base unit 13, respectively. Between upper chords 4 and 10 and lower chords 5 and 1
The 1 is connected by bolting the joint flanges 9 and 12 with a plurality of high-strength bolts.

In such a case, since the upper chord member 10 and the lower chord member 11 of the central unit 2 are formed to be short, they can be sufficiently self-supporting without a work scaffold.

Then, the node unit 1 is attached to the tip of each intermediate unit 2.
The connection between the intermediate unit 2 and the node unit 1 for connecting is connected by bolting the joint flanges 9 and 12 of the upper chord members 4 and 10 and 5 and 11 of both members with a plurality of high-strength bolts.

In addition, the connecting members 8 of the adjacent node units 1 are connected in parallel with each other, and
Of the ..., Outer connecting members 8, 8 of the node units 1, 1 located at both outermost ends are pin-attached to the vertical arches 15, 15.

The vertical arch 15, by connecting the connecting materials 8,
One arch frame is constituted by the connecting members 8, ... Between 15 and as a result, each node unit 13, 13
Can stand on its own without a work platform.

Hereinafter, similarly, the frame of the entire roof is configured by installing the node units 1 and the intermediate units 2 alternately from the roof peripheral portion to the roof central portion while alternately connecting them. And finally, install the entire roof panel.

(Effects of the Invention) The construction method for a large space building according to the present invention is composed of a large number of members, which are upper chord members, lower chord members, bundle members, tie members and diagonal members, which constitute the feeler arch of the large space building. It was possible to simplify the assembly of the troublesome nodes by unitizing the nodes where the points are concentrated into an integrated node unit, and connecting the node unit and the intermediate unit in a grid pattern Since it is constructed in the direction of the center of the span, the node unit and intermediate unit are joined to the already installed node unit and intermediate unit at the same time as they are installed, so there is no need for a scaffold to temporarily support these members, Since temporary construction costs can be significantly reduced, it is possible to construct a large space building with good work efficiency, and the construction period can be greatly shortened.

[Brief description of drawings]

1 to 10 show an embodiment of the present invention. FIG. 1 is a perspective view of a large space building, FIG. 2 is a partial side surface portion of a space frame, FIG. 3 and FIG. FIG. 4 is a side view and a plan view of a space frame column base, FIGS. 5 and 6 are partial perspective views and exploded perspective views of the space frame, and FIGS. 7 to 9 are construction methods of a large space building. FIG. 10 is an enlarged view of a portion A in FIG. 1 ... Nodal unit, 2 ... Intermediate unit, 3 ... Fieldend arch, 4 ... Upper chord member, 5 ... Lower chord member,
7 ... Bundle, 8 ... Connecting material, 9 ... Joint flange, 1
0 ... upper chord member, 11 ... lower chord member, 12 ... joining flange, 13 ... column base unit, 14 ... lower structure, 15
…… Vertical arch, 16 …… Horizontal arch.

Claims (1)

[Claims] 1. A construction method for a large space building in which a feeler arch is assembled from a nodal unit consisting of a short pipe having a joint flange attached to an end and an intermediate unit, wherein the nodal unit is an upper chord member and a lower chord member, The bundle material that connects the centers of the upper and lower chord members, the connecting material that projects from both sides of the approximate center of the lower chord material at right angles, and the diagonal material that connects the approximately central sides of the upper chord material and the tip of the connecting material are rigid. The intermediate unit is composed of an upper chord member or a lower chord member, which is a tube body joined to the upper chord member or the lower chord member, respectively.
A construction method for a large space building, characterized in that the nodal units and the intermediate units are sequentially installed alternately in the center of the span of the fieldend arch while alternately connecting them in a grid pattern.