JPH03103547A - Skeleton construction method - Google Patents

Abstract

PURPOSE:To reduce joining and assembling work at high places as well as risky work and, at the same time, to shorten a construction period by lifting a skeleton unit formed by joining specific beam members with a column member to build up, and constructing the skeleton. CONSTITUTION:Girders 2... expanding to right and left by about a span length are joined with both ends of a column 1 to form a skeleton unit U1. After that, girders 3... extending to right and left by a half-span length and girders 4... ar right angles to them are joined to each side of the column 1 to form a skeleton unit U2, and floor boards 5 are mounted together as a unit on each girder 3 except the column 1. Then, the skeleton unit U1 is lifted to a mounting floor by a lifting means, it is placed between existing columns 6 and 6, the column 1 is joined with a column 1 for a down floor and, at the same time, grinders 2... are joined with right and left columns 6 and 6. Tips of the girders 3, 3 and beams 8, 8 of adjacent skeleton units U2 and U2 are joined with each other at the center of a span.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a method for constructing a frame structure in which a frame structure is constructed into units.

"Prior Art" Generally, the frame structure of buildings such as office buildings and condominiums is a steel frame structure or a steel reinforced concrete structure.

When constructing such a frame structure, the general method is to construct a foundation in advance at the construction site, and then erect one-section pillars with a length of 2 to 4 floors on top of the foundation. The structure is constructed by placing large beams and small beams between the pillars, and then using a crane etc. to lift and assemble the pillars and beams respectively, and by repeating these steps, the lower floor to the upper floor can be moved. The framework will be constructed and constructed.

``Problems to be Solved by the Invention'' However, according to the above-mentioned conventional construction method, the required number of columns, large beams, and small beams are sling-lifted from the lower floors using cranes, and then placed at predetermined positions on each floor. Since each piece is assembled separately, the lifting time increases, and
Assembly work was time consuming. As a result, it is difficult to shorten the construction period, and the higher the story, the longer the lifting time, and there are disadvantages in that dangerous work is involved during assembly.

This invention was made in view of the above circumstances, and it is possible to construct a frame that can simplify and speed up assembly work, shorten construction time, and reduce dangerous work associated with assembly work at high places. The purpose is to provide construction methods.

``Means for Solving the Problems'' This invention is a construction method for constructing the frame of an architectural structure mainly composed of columns and beams, in which predetermined structures are attached to the column members constituting a part of the frame on the ground. The beam members are joined together to form a single frame unit, and these frame units are lifted and assembled to construct the frame. Note that it is desirable to provide the floor slab integrally with the beam member of the frame unit in advance.

"Operation" According to the frame construction method of the present invention, by assembling the frame unit consisting of the necessary column members and beam members in advance on the ground, the number of times the column members and beam members are lifted is reduced, and Assembly and construction work on each floor will be significantly labor-saving and dangerous work will be reduced. Furthermore, by providing the floor slab integrally with the frame unit in advance, unitization of the frame can be facilitated.

Embodiment FIGS. 1 to 4 show an embodiment of the present invention. Hereinafter, a method for constructing a frame according to the present invention will be explained.

(1) Fabrication of the frame unit The frame unit U of this example has a predetermined story height.
It is made by joining a predetermined number of beams 2 at each joint by means such as welding or bolting.For example, in the outer wall of the frame, as shown in Figs.
On both sides, there are two large wires extending from side to side by approximately the span length.
・Construct the frame unit UI by joining. Also, inside the building frame, as shown in Figures 3 and 4,
A girder 3 extending left and right by half a span on each side of column I...
and the girders 4 perpendicular thereto are joined together to form a frame unit U, and a floor slab 5 is integrally attached to this frame unit U on each girder 3 except for the column I.

As the floor slab 5, a PC version (precast version), a semi-PC version, a deck plate, etc. are used.

Note that the frame unit U is used not only for the outer wall of the frame but also for the internal structure.

(2) Lifting and installation of the frame unit The frame unit U, which is placed on the outer wall, etc., is lifted to the installation floor using lifting means such as a crane, placed between the existing columns 6, and the column I is placed on the lower floor. The beams 2 are joined to the pillars 1 by welding or bolting, and the girders 2 are joined to the left and right columns 6 by welding or bolting. In addition, instead of attaching this frame unit U to the existing pillar 6, the frame unit U
．． In order to join SUIs, a center joint method may be used in which they are joined at the center of the span.

In addition, the internal frame unit U2 is of the center joint type, and the column 1 is joined to the column 1 on the lower floor, and the adjacent frame units U, , U, Doshi's large porcelain 3, 3 and small porcelain 8, Join the tips of 8 at the center of the span.

After completing the installation of each frame unit UU of a predetermined floor in this way, the frame unit U of the upper floor is installed again.
,,U, and assemble them according to the above procedure to assemble the entire frame.

According to this embodiment, predetermined girders 2 and 3 are attached to the pillar 1 on the ground.
, 4. Attach the small beams 8 in advance and build the frame unit, U, , U,
By making , you can install columns l and beams 2, 3, and 2 to high places.
It is possible to reduce the number of lifts of 4, 8, etc. Also,
It is possible to reduce the number of man-hours required for assembly and welding work at high places, and to greatly reduce the dangerous and complicated work involved in such work, thereby ensuring safe work. These effects make it possible to efficiently construct a high-quality frame and shorten the construction period.

Furthermore, when manufacturing the frame unit U, the floor slabs 5 are also installed together, so that the floor slabs 5 on each floor can be
Since the installation work can be reduced to just the joining work, construction can be done quickly and easily, and the unitization of the frame can be promoted.

"Effects of the Invention" As explained in detail above, the present invention is a construction method for constructing the frame of an architectural structure mainly consisting of pillars and beams, in which the pillars that make up the frame are placed on the ground in advance. Since the frame is constructed by joining specified beam members to the members to form a frame unit, and then lifting and assembling these frame units, it is possible to assemble the joints at high places by assembling the columns and beams first. It is possible to reduce the amount of work and associated dangerous work, and to ensure a certain level of quality.Furthermore, by pre-installing the floor slab on the frame unit, it is possible to shorten the construction period.

[Brief explanation of drawings]

Figures 1 to 4 show one embodiment of the present invention, with Figure 1 being a side view showing how the frame unit is installed, Figure 2 being a plan view thereof, and Figure 3 showing other frame units. FIG. 4 is a side view showing the installed state, and FIG. 4 is a plan view thereof. 1... Pillar, 2, 3. 4... 8...
小粱, 5...floor slab, 6...column, U1, U,......

Claims (2)

[Claims] (1) A construction method for constructing the frame of an architectural structure mainly consisting of columns and beams, in which prescribed beam members are joined on the ground to column members that make up part of the frame in advance to form a frame unit. , a framework construction method characterized by constructing a framework by lifting and assembling these framework units. (2) The framework construction method according to claim 1, characterized in that a floor slab is provided integrally with the beam member of the framework unit in advance.