JPH0518123A - Erection structure base - Google Patents

Abstract

PURPOSE:To improve the workability of the building construction work by providing structure bases at the top ends of multiple stanchions erected at an excavation section, and vertically slidably moving the structure bases with jacks arranged between the structure bases and the stanchions. CONSTITUTION:Structure bases 7, 7 are provided at the top ends of multiple stanchions 3... erected at an excavation section 2 for the underground construction work of a building, jacks 4... are arranged between the structure bases 7 and the stanchions 3, and the structure bases 7 are vertically slid freely. The upper face of an erection structure base 1 is located at the same plane as the ground surface M at the upper section of the opening section of the erection structure base 1. When the floor slab 9 of the first floor is to be constructed, the erection structure base 1 is slid upward by the jacks 4, and it is disassembled after the floor slab 9 is constructed. The entering of a crane and the like to the erection structure base 1 and the construction of the floor slab 9 of the first floor can be facilitated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a construction pedestal for a crane, other vehicle, etc. to be brought in when a material or equipment is carried into a root cutting portion in underground construction of a building.

[0002]

2. Description of the Related Art In an underground construction of a building, an erection gantry is provided to carry in materials and the like to a root cutting part, and the erection gantry is sequentially raised according to the construction of an underground skeleton to construct a floor slab on the first floor. Used up to. When constructing the floor slab on the first floor, this erection gantry was raised a little higher than the ground surface 10 as shown in FIG. 5, and the connecting plate 30 was provided between the erection gantry 20 and the ground surface 10. . Then, a vehicle such as a crane is loaded into the erection pedestal 20 by the connecting plate 30 to carry the materials and the like into the root cutting portion 40.

[0003]

However, since the connecting plate of this erection gantry is inclined, it is not only very difficult and dangerous to enter a crane or the like, but also the first floor immediately below this connecting plate. It was difficult to construct the floor slab, and the workability was poor. The present invention has been made in view of the above problems, and an object thereof is to provide an erection gantry that enables easy construction of a floor slab on the first floor and entry of a crane or the like into the erection gantry.

[0004]

[Means for Solving the Problems] An erection gantry of the present invention for attaining the above-mentioned object is provided with a gantry at the top end of a plurality of pillars erected at a root cutting portion in the underground construction of a building. It is characterized in that the gantry is provided slidably up and down by a jack provided between the column and the column.

[0005]

In the upper part of the opening, the erection gantry,
The ground surface and the top surface of the erection gantry are located flush with each other, and when building the floor slab on the first floor, it is slid upward by a jack. Then, the floor slab on the first floor is constructed and then disassembled.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a front view of the erection gantry, FIG. 2 is a front view in a sliding state, FIG. 3 is a side view, and FIG. 4 is a plan view.

The erection gantry 1 is formed by connecting a large number of units of one unit formed between four struts 3 standing on the root cutting portion 2, and the jack 4 mounted on the top end of the stanchion 3. The lower girders 5 are bridged over the space, and the gantry 7 is formed on the upper girders 6 bridged between the lower girders 5 at appropriate intervals.

The jack 4 is fixed to the top end of the support column 3 with bolts, and the top end of the jack 4 is also fixed to the lower girder 5 with bolts. Are connected by. The upper girder 6 is also bolted to the lower girder 5, and the gantry 7 is also bolted to the upper girder 6.

When constructing a basement floor, the erection gantry 1 is positioned flush with the ground surface, and a vehicle such as a crane can easily get in and carry materials and the like into the root cutting section 2.
In addition, when constructing the floor slab 9 on the first floor,
After a vehicle such as a crane is loaded, the erection gantry 1 is raised by the jacks 4 of the columns 3 to form a space where the floor slab 9 on the first floor can be easily constructed.

After the floor slab 9 on the first floor is constructed, a connecting plate is provided between the erection pedestal 1 and the ground surface M at the same height, and a vehicle such as a crane is lowered and dismantled.

[0011]

EFFECTS OF THE INVENTION A gantry is provided at the top end of a plurality of columns that are erected at the root cutting portion in the underground construction of a building, and the gantry is vertically slidable by a jack provided between the gantry and the columns. As a result, the floor slab on the first floor can be easily constructed, and the workability can be improved.

[Brief description of drawings]

FIG. 1 is a front view of a construction gantry.

FIG. 2 is a front view of a raised gantry.

FIG. 3 is a side view of the erection gantry.

FIG. 4 is a plan view of an erection gantry.

FIG. 5 is a front view of a conventional erection gantry.

[Explanation of symbols]

 1 erection gantry 2 root cutting part 3 stanchion 7 gantry

Claims (1)

Claims: 1. A gantry is provided at the top end of a plurality of pillars erected at a root cutting portion in the underground construction of a building, and the gantry is formed by a jack provided between the gantry and the pillars. An erection gantry characterized by being slidable up and down.