JPH1162079A - Floor block construction method for steel structure frame - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a consistent construction method for a steel structure frame in which a large floor block panel composed of main girders, beams, and a deck plate is lifted as it is without using a jig to be provided on a column in order to be jointed for saving labor of construction and reducing cost. SOLUTION: Two main girders are connected to each other by a plurality of beams 2, and a deck plate 3 is disposed on the beams 2 to form a unit of a floor block panel A, an end part of the main girder 1 of the panel A is set to a column, it is provided to a first block A1 surrounded by four columns, and the next floor block panel A is provided to a second block A2 surrounded by four columns to be adjacent to the first floor block panel A. The floor block panels A are thus provided to the respective blocks, and the mutually adjacent main girders 1 of both floor block panels A are connected to the columns back-to-back.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor block construction method for a frame of a steel frame building, and is most suitable for constructing a frame having a long span.

[0002]

2. Description of the Related Art In recent years, a construction method in which a unit floor construction method is used in combination with a normal assembling method is sometimes used for constructing a frame of a steel frame building (for example, an office building). That is, after constructing a frame s composed of columns c, main beams t and girder beams g (assembly method), a unit floor composed of a plurality of small beams b and deck plates d is provided on the main beam t of the same frame s. In this method, f is erected (unit floor method) and joined.

[0003]

In the above-mentioned combined construction method, the construction efficiency is improved as compared with the case where the deck plates are laid one by one after the frame is constructed by the conventional assembling method.
However, the above-mentioned construction method involves two steps of installing a unit floor after completion of an assembling operation of a frame, so that there is a limit in labor saving of construction. In other words, since the rigidity of the unit floor is low, a lifting jig is required at the time of lifting, and furthermore, the connection between the main beam of the frame and the small beam of the unit floor requires work labor as in the case of the conventional method. There were issues to be improved in terms of safety and economy.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems. According to the present invention, when constructing a frame, a large floor block panel composed of a main beam (large beam), a small beam and a deck plate is attached to a jig. An object of the present invention is to provide a floor block construction method in a steel frame structure, which is a consistent construction method in which the construction is lifted as it is without using, and is sequentially erected on a pillar and joined, and labor saving and cost reduction of construction can be achieved.

[0005]

In order to achieve the above-mentioned object, a floor block method according to the present invention comprises connecting two main beams with a plurality of small beams and arranging a deck plate on the small beams. The floor block panel unitized by the above is erected on the first block surrounded by four pillars, with the ends of the main beams of the panel corresponding to the pillars, and the next floor is adjacent to the floor block panel. The second block panel is surrounded by four pillars
It is characterized in that it is erected on a block, and similarly, the floor block panels are sequentially erected on each block, and the adjacent main beams of the two floor block panels are joined to the columns in a back-to-back state.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. <B> Floor block panel (FIGS. 2 and 4) As shown in FIG. 2, the floor block panel A is of a type in which the main beams 1 and 1 of the panel A are joined to the columns 4 and is spaced apart from each other by a predetermined distance. And two main beams (large beams) 1 and 1, a plurality of small beams 2 installed between the main beams 1 and 1, and a deck plate 3 fixed to the small beams 2. It is a large panel unitized and manufactured in advance in jars. In the figure, reference numeral 13 denotes a rib of the deck plate 3.

As shown in FIG. 4, the floor block panel B is of a type in which the main beams 10, 10 of the panel B are joined to the beam brackets 5 projecting from the columns 4, and have substantially the same shape as the floor block panel A. It is. Other members are shown in Fig. 2.
The same reference numerals are used.

The main beams 1 and 10 of the floor panels A and B (hereinafter abbreviated as floor panels) are groove-shaped members such as channels, and the two main beams 1, 1, 10 and 10 have grooves 7.
Are used inward with respect to the panels A and B.
(FIG. 2 (a))

Since the floor panels A and B are formed in a frame shape and have extremely high rigidity, the ducts 8 and equipment pipes can be incorporated in a low place in advance, and can be used without using a jig. Can be lifted. In the figure, reference numeral 9 denotes an outlet of the duct 8.

<B> Embodiment of floor block method (1) (FIGS. 1 to 3) First block A in which floor panel A is surrounded by four pillars 4
1 is installed. That is, the respective ends (four places) of the main beams 1 and 1 correspond to the four columns 4 and are mounted on the brackets 14 attached to the columns 4. Next, the next floor panel A adjacent to the floor panel A is divided into four pillars 4 and girder beams 6,6.
It is erected on the second block A2 surrounded by. At this time, the main beams 1, 1 in the adjacent portions of the floor panels A, A are supported by the columns 4. Similarly, the floor panels A,
Next to A, the next floor panel A is sequentially erected on each pillar 4 of the third and fourth blocks A3, A4,... The main beams 1 and 1 are joined to the columns 4. At this time, the main beams 1 and 1 are joined to the column 4 in a back-to-back state. In addition, 2 in the figure
Reference numeral 8 denotes a stud bolt.

<C> Joining of Column 4 and Main Beams 1 and 1 in Floor Block Method (1) (FIG. 1) The web 16 of the main beams 1 and 1 shown is a gusset plate 17 attached to the column 4. With high-strength bolt 22
The upper and lower flanges 15, 15 are each welded to the pillar 4
Has been joined.

<D> Joining of the main beam 1 and the main beam 1 in the floor block method (1) (FIG. 1) The two main beams 1 and 1 are joined at appropriate intervals in the length direction. That is, the webs 16 and 16 of the main beams 1 and 1 are connected to each other via a filler plate 18 and the upper and lower flanges 15 and 15 are connected to each other via a connecting plate 19 to connect a high-strength bolt 22.

<E> Embodiment of Floor Block Method (2) (FIGS. 4 to 6) A floor panel B is formed into a first block B1 surrounded by beam brackets 5 extending from columns 4 and beam beams 6, 6. Erect.
That is, each end (four places) of the main beam 10 of the floor panel B is made to correspond to the four beam brackets 5, and the beam bracket 5 and the temporary fastening bolts 23 are joined. Next, the next floor panel B adjacent to the floor panel B is placed in a second block B2 surrounded by four beam brackets 5 and girder beams 6,6.
To be erected. At this time, the main beams 10, 10 on both floor panels B, B adjacent portions are supported by the beam bracket 5. Similarly, the next floor panel B is successively installed on each of the beam brackets 5 of the third and fourth blocks B3, B4,... Adjacently to the previously installed floor panels B, B. Adjacent main beams 10, 10 of both adjacent floor panels B, B are joined to the beam bracket 5 and the final fastening bolt 22. At this time, the two main beams 10 are joined to the beam bracket 5 in a back-to-back state. In addition, beam bracket 5
Is an I-shaped member. 27 is a bolt hole in the figure.

<F> Joining of the beam bracket 5 and the two main beams 10 and 10 in the floor block method (2) (FIG. 6) The webs 16 of the both main beams 10 and 10 shown in FIG. And the upper and lower flanges 15 and 15 of the main beams 10 and 10 and the upper and lower flanges 25 and 25 of the beam bracket 5 are connected to each other via a splice plate 24. .

The main beams 1, 10 on the end sides of the floor panels A, B of the first blocks A1, B1 are replaced by other members 11, for example, members such as I-shaped, box-shaped or truss members, instead of the groove-shaped members. May be used.

The frame is constructed by the floor block construction methods (1) and (2), and the previously constructed blocks A1,
From B1, since the work of arranging the slab reinforcing bars can be performed immediately on the deck plate 3 of the floor panels A and B, the labor saving of the construction is extremely remarkable.

[0017]

As described above, the present invention has the following effects. <A> By sequentially arranging floor panels by the floor block method, all floor blocks in the frame are constructed in one process, so that the construction period can be greatly reduced by labor saving of the construction. <B> Floor panels consisting of main beams (large beams), small beams, and deck plates are manufactured at low places, so that compared to the conventional method of joining small beams to large beams at high places, the joining accuracy and
Work efficiency and safety are significantly improved. <C> Since the floor panel has high rigidity, lifting beams do not require a lifting beam or a jig. Therefore, cost can be reduced. <D> Floor panels have high rigidity, so in low places,
Ducts, piping for equipment, and the like can be incorporated in advance, so that work at high places is drastically reduced, and work accuracy, efficiency, and safety are improved.

[Brief description of the drawings]

FIG. 1 is a perspective view of a main part showing a first embodiment of a floor block method according to the present invention.

2A is a plan view of a floor panel A, FIG. 2B is a front sectional view thereof, and FIG.

FIG. 3 (a) Construction process diagram of the floor block method
(B) Same, side view

FIG. 4 is a plan view of a floor panel B showing a second embodiment of the floor block method.

FIG. 5 is a block plan of the erection process of the floor block method.

FIG. 6 is an essential part side view for explaining a joining order of the floor panel B;

FIG. 7 is a plan view of a conventional unit floor.

Claims (2)

[Claims] 1. A floor block panel comprising: two main beams connected by a plurality of small beams; and a deck plate arranged on the small beams to form a unit. The floor block panel is formed by a main beam of the panel. A second block surrounded by four pillars adjacent to the floor block panel is installed next to the first block surrounded by four pillars, the ends corresponding to the pillars. In the same way, the floor block panels are sequentially installed on each block, and the adjacent main beams of both adjacent floor block panels that have been installed earlier are sequentially joined to the columns in a back-to-back state. A floor block method for a steel frame structure. 2. The floor block panel comprises two main beams connected by a plurality of small beams, and a deck plate is arranged on the small beams to form a unit. The floor block panel is formed of a main beam of the panel. An end is made to correspond to the beam bracket, and is erected on a first block surrounded by four beam brackets. A next floor block panel is surrounded by the four beam brackets adjacent to the floor block panel. Similarly, the floor block panels are sequentially installed on each block, and the adjacent main beams of the two adjacent floor block panels that are installed earlier are sequentially placed back to back. A floor block method for a steel frame structure, which is joined to a beam bracket.