JPH03212548A - Constructing method of preliminariry assembled floor having equipment - Google Patents

Abstract

PURPOSE:To improve workability by preliminarily assembling a floor unit member having equipments installed to the lower surface of a deck plat floor material, and lifting the member to a determined floor followed by bonding after construction of steel pillars and steel large beams is finished. CONSTITUTION:A floor unit member D in which steel small beams 1, 1 and a deck plate floor material 2 are combined is preliminarily assembled on the ground part. Equipments such as an air conditioner body 3, a chamber 4, an air conditioner duct 5..., a sprinkler pipeline 6 are preliminarily mounted on the lower surface of the deck plate floor material 2. After the construction of steel pillars and steel large beams is completed, the floor unit member D is lifted up to a determined floor, and the end parts of the steel small beams 1, 1 in the floor unit member D are bonded to the determined positions of the corresponding steel large beams.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a floor construction method in which equipment such as air conditioning equipment, fire extinguishing equipment, water supply and drainage equipment, etc. are attached.

(Conventional technology) Conventional floor construction in steel structures involves building multiple floors of steel columns as one section, then sequentially assembling steel beams and small steel beams for each floor, and building the required amount of deck plate floors for each floor. After unloading the materials and completing the erection of the steel frame, the deck plate flooring material is strung between the steel girders and fixed by welding or the like.

Furthermore, after the above construction is completed, equipment construction will be carried out, including installation of air conditioning equipment under the floor,
We are installing equipment such as fire extinguishing equipment and water supply and drainage equipment.

(Problem to be solved by the invention) In this case, after the steel columns, large steel beams, and small steel beams have been erected, the deck plate flooring material must be
Since it is not possible to bridge the beams one by one between the girders and fix them by stud welding or the like, this causes a delay in the construction period. Furthermore, if you try to install the deck plate flooring during the final tightening work on the upper floors, you will have to work up and down, and there is a risk of falling objects.

Furthermore, regarding facility work, it is not possible to install equipment under the floor until after the deck plate flooring has been installed, and if the work overlaps with other facility work and the work is congested, a considerable number of workers will be required. It is difficult to secure

The present invention has been proposed in view of the problems of the prior art, and its purpose is to improve workability, save labor and ensure safety, and shorten the construction period. The purpose of this invention is to provide a floor construction method with equipment attached.

(Means for Solving the Problems) In order to achieve the above object, according to the floor construction method according to the present invention, a steel beam and a deck plate flooring material are assembled, and the lower surface of the deck plate flooring material is The floor unit members pre-attached with equipment are assembled on the ground in advance, and after the steel columns and the steel girders have been moved, the floor unit members are hoisted to a predetermined floor, and the ends of the steel beams in the same floor unit members are placed opposite each other. It is connected to a predetermined position on a steel girder.

(Function) According to the present invention, as described above, a floor structure consisting of steel beams and deck plate flooring is assembled in advance in the above-ground part, and a machining device is installed on the lower surface of the deck plate flooring in the same floor structure. are attached in advance to form a floor unit member, and after the erection of the steel columns and steel girders is completed, the floor unit member is hoisted to a predetermined floor, and the ends of the steel beams are placed in a predetermined position of the steel girder facing each other. By joining the steel frame beams and deck plate flooring, the installation work of the steel frame beams and deck plate flooring and equipment work can proceed at the same time, saving labor and labor, improving work safety, and shortening the construction period.

(Example) The present invention will be described below with reference to the illustrated embodiments.

Fig. 5 shows a frame to which the floor construction method according to the present invention is applied, in which a steel girder (81) is erected between the steel column A of four steel reinforced concrete columns (a), and a steel girder (81) is erected between the opposing steel girder fB1. Steel frame beams (1) are laid across the structure, and deck plate flooring (2) is placed on top of the beams (1).

In the figure, (1a) is the joint between the small steel beam (1) and the large steel beam (Bl).

Of the frame structure, set the steel beam (1) in a predetermined position on the ground assembly pedestal, which will be described later, and connect the opposing steel beam (E31 and the joint (1a) of the steel beam (1)). The deck plate flooring material (2) is attached to the floor area excluding the main beam (B1), and the air conditioner body (3), chamber (4), and air conditioner are installed on the bottom surface of the deck plate flooring material (2). Facilities such as ducts (5), sprinkler piping (6), water supply and drainage pipes, etc. (floor unit member 0 prefixed with O) are assembled on the ground. (7) in the figure is a hanging bolt.

The floor unit member 0 configured as described above is assembled on a ground assembly pedestal installed at the construction site site, consisting of temporary beam members on four sides corresponding to the girders, and is made of steel columns (temporarily placed on the pedestal as appropriate). 2), After the speed of the steel frame girder (81) is completed, it is hoisted to the required floor, and both ends of the steel frame small beam (1) in the floor unit member 0 are joined to the opposing steel frame girder (Bl) at a predetermined position, and the Joint in beam (1) (
The remaining deck plate flooring material (2) is attached to 1a), and the main piping is connected to the equipment (C) at the bottom of the floor in the floor unit member 0, completing the entire process.

(Effects of the Invention) According to the present invention, as described above, the steel beams and the deck plate flooring material are assembled, and the floor unit member with the equipment attached to the lower surface of the deck plate flooring material is assembled in advance on the ground. After completing the speeding of the steel columns and steel girders, the floor unit member is hoisted to a predetermined floor, and the ends of the steel small beams of the same floor unit member are joined to the predetermined positions of the opposing steel girders, making the work easy and quick. It was carried out in
By pre-installing equipment under the floor, steel frame work and equipment work can proceed at the same time, contributing to labor savings, work safety, and shorter construction times.

[Brief explanation of drawings]

Fig. 1 is a bottom view of a floor unit member used in the floor construction method in which the equipment according to the present invention is pre-installed, and Fig.
3 and 4 are plan views and vertical cross-sectional views showing the structure of the floor unit member, respectively, and FIG. 5 shows a part of the frame to which the method of the present invention is applied. FIG. 2 is a partially cutaway plan view. Prisoner...Steel frame column, (Bl...Steel frame girder, (Q
...Equipment, 0...Floor unit member, (1
)...Steel beams, (2)...Deck plate flooring, (3)...Empty FF181 body, (4)...
・Chamber (5)...Air conditioning duct, (6)...
・Sprinkler piping.

Claims (1)

[Claims] In addition to assembling the steel frame beams and the deck plate flooring material, the floor unit members with the equipment attached to the underside of the deck plate flooring material are assembled in advance above the ground, and after the speed of the steel frame columns and the steel frame girder is completed, the floor unit members are assembled. A construction method for floor assembly equipped with equipment, characterized in that the equipment is lifted to a predetermined floor and the ends of the small steel beams in the same floor unit member are joined to the predetermined positions of the opposing steel beams.