JPH0222823B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] This invention relates to a method for constructing a large-scale structure consisting of a three-dimensional truss by lift-up.

[Problem that the invention seeks to solve]

Conventionally, each member of the three-dimensional truss that makes up the Oharama frame is assembled on scaffolding. Various construction methods have been proposed in order to save labor and improve the efficiency of on-site work, but there are few cases in which the lift-up construction method is applied. Therefore, this invention was developed as a result of research into a construction method that would be relatively easy to implement by using the lift-up method to construct a three-dimensional truss assembled on the ground.

[Structure of the invention]

In this invention, a column is established at the center of the lattice of the chords of a three-dimensional truss formed by connecting upper and lower chords with diagonal members, a frame is provided on the outer periphery of the column above the chords, and this frame and the strings are The three-dimensional truss is lifted up to a predetermined height by connecting the intersection points of the three-dimensional truss with a plurality of hanging members extending downward and using the pillars as guides to pull up the frame and the hanging members. This is a method of constructing a structure to be installed.

〔Example〕

The three-dimensional truss A is constructed by connecting an upper chord member 1 and a lower chord member 2 with diagonal members 3.

Column B is established so as to pass through the center of the first lattice of the upper chord of the three-dimensional truss A.

The three-dimensional truss A and the column B are connected by a frame 7 provided on the outer periphery of the column above the upper chord member 1 and a lattice intersection A1 between the upper chord member 1 and a plurality of hanging members 4 extending downward. An outline of the construction procedure is shown in Figure 3. First, column B was erected, then 3D truss A was assembled on the ground, the necessary roof finishing and ceiling equipment were installed, and then 3D truss A was lifted using column B as a guide to the required height. Rear stereo truss A
The outer wall 5 is attached to the lower part of the periphery.

FIG. 4 shows another embodiment. In the previous embodiment, the lower end of the hanging member 4 was attached to the lattice intersection A1 of the upper chord member 1, whereas in this case the lower end of the hanging member 4 was attached to the lower chord member. It is attached to the lattice intersection A2 of No. 2. Further, the outer wall 5 is divided into upper and lower parts, and the upper part of the outer wall 5 is attached and lifted during the lift-up of the three-dimensional truss A, and then the lower part of the outer wall 5 is attached.

As an example of a lifting mechanism, a plurality of center hole jacks 6 are installed on the top of the pillar B, and a frame 7 is provided on the top of the hanging material 4 to slide along the pillar B, and this frame 7 is connected to the center hole. The rod 8 lowered from the jack 6 is attached, and the three-dimensional truss A is lifted up by operating the center hole jack 6. Note that horizontal stiffeners 9 are appropriately attached to the upper and lower chord members 1 and 2 of the three-dimensional truss A around the column B. Moreover, the three-dimensional truss A can also be lifted up by having a configuration in which the hanging members 4 are pushed up.

〔Effect of the invention〕

This invention has the above-described configuration, and can assemble a large-scale planar roof and outer wall on the ground. In particular, a frame is provided around the outer periphery of the column, this frame and the lattice intersections are connected by multiple hanging members extending downward, and the frame and hanging members are raised, making it possible to horizontally lift up a large-span three-dimensional truss. Also, the bending stress generated in the column can be reduced.

[Brief explanation of drawings]

Figures 1 and 2 are a plan view and an elevation view of the construction process of the structure of this invention, and Figure 3.
Figures 4 and 5 are elevational views showing an overview of the construction process, and Figure 5 is an elevational view of the lifting mechanism. A... Three-dimensional truss, A1, A2... Lattice intersection, B... Column, 1... Upper chord member, 2... Lower chord member, 3
... diagonal material, 4 ... hanging material, 5 ... outer wall, 6 ... center hole jack, 7 ... frame, 8 ... rod,
9...Horizontal stiffener.

Claims (1)

[Claims] 1 A column is established in the center of the lattice of the chord of a three-dimensional truss formed by connecting upper and lower chords with diagonal members, a frame is provided on the outer periphery of the column above the chord, and this frame and the lattice of the chord Lift up the three-dimensional truss to a predetermined height by connecting the intersection with a plurality of hanging members extending downward and using the pillars as guides to pull up the frame and hanging members, and then attaching an outer wall to the lower part of the periphery of the three-dimensional truss. A method of constructing a large-scale structure characterized by: