JPH04124340A - Frame for combined construction - Google Patents

Abstract

PURPOSE:To enhance a degree of freedom on floor planning without the projections of pilasters by forming the wall-shaped wall columns of long cross- sectional areas in the directions for erecting steel frame beams, to the widths (thicknesses) so that the cross-sectional areas of the columns cannot be reduced. CONSTITUTION:A frame is composed of reinforced concrete columns and steel frame beams 1, and the columns are formed with wall-shaped wall columns 2 and then on planning, pilasters are avoided. On the wall columns 2, with L-shapes at corner sections, T-shapes or I-shapes on the outer peripheral section, and cross-shapes or I-shapes at intermediate sections, in any cases, long cross-sectional areas in the directions for erecting the steel frame beams 1, to width dimensions are formed. As a result, the columns are formed with the wall columns 2 of small width dimensions, and without the projection of the pilasters, a degree of freedom on floor planning can be enhanced.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a composite structure frame consisting of reinforced concrete columns and steel beams.

[Problem to be solved by the invention]

Structures in which the columns are made of reinforced concrete and the beams are made of steel frame have the advantage of being able to have a cross-section that is co-economical for the columns and beams, as the weight of the beams is reduced, allowing for large spans. At the same time, they tend to be used in column and beam frames as a rational structure that takes advantage of the characteristics of each material.

Conventionally, in this type of composite structure, the key point is how the joints between columns and beams, which have different structures, fit together, but in structures that simply combine the two structures, the width of the column is usually the same as the width of the beam. Since it is relatively large in relation to its width, the column shape protrudes from some of the corners on the plane, and there is always the problem that there are large restrictions on plan planning.

This invention was made by focusing on the problems in plan planning of such a composite structure, and attempts to propose a frame with a rational structure in terms of planning.

[Means to solve the problem]

In the present invention, the column is made into a wall-shaped wall column with a long cross section in the direction of erection of the steel beam relative to the width (thickness) without reducing the cross-sectional area, thereby eliminating the protrusion of the column shape and improving the floor plan. increase the degree of freedom of

The ends of the steel beams are placed on the tops of the wall pilasters and are joined and connected to anchor bolts fixed to the heads of the wall pilasters.

〔Example〕

The present invention will be explained below based on the drawings showing one embodiment.

The frame of this invention is composed of reinforced concrete columns and steel beams 1, and by using the columns as wall-shaped wall columns 2, the column shape is eliminated from the plan view.

The wall pillar 2 has an L-shaped corner and a T-shaped outer periphery, or a T-shaped outer periphery, as shown in FIG. Further, the intermediate portion has a cross-shaped or T-shaped cross-sectional shape, which is longer in the direction of erection of the steel beam 1 than the width dimension.

The wall pillars 2 in the middle part are formed into a T-shaped cross section when the steel beam 1 is installed in one direction as shown in Figure 2-■, and a cross-shaped cross section when the steel beam 1 is installed in two directions as shown in ■. be done. This wall pillar 2
The cross-sectional shape and dimensions of are determined from both the floor plan and structural plan.

FIG. 3 shows an outline of a plan view of the building frame, and as shown here, one end of the steel beam 1 is connected to the wall column 2, and the other end is connected to each other at the middle of the span.

The steel beams 1, 1 are joined together by, for example, fastening bolts 4 to joint plates 3 installed across the upper and lower flanges and webs of the steel beam 11, as shown in FIG. 4, which shows a joint at the middle of the span. be exposed.

The connection between the steel beam 1 and the wall column 2 is shown in Fig. 5 4, which shows the connection of the corner parts. As shown in (2), the steel beam 1 is placed on the anchor bolt 5 embedded in the head of the wall pillar 2 so as to protrude from the top end, and the nut 6 is tightened to the anchor bolt 5 passing through the lower flange.

As shown in FIG. 5, the steel beam 1 is level-adjusted with a base mortar 7 laid on the top of the wall pillar 2, and placed on a base plate 8 installed thereon.

The anchor bolt 5 is inserted into a sleeve 9 that is buried in advance when concrete is poured into the wall pillar 2, and is fixed to the wall pillar 2 by filling the inside with non-shrinkage mortar or the like.

The end of the steel beam 1 on the wall pillar 2 side is embedded in the continuous wall pillar 2 on the upper floor side.

A one-story frame is formed by connecting the wall columns 2 and the steel beams 1, and a multi-story building frame is constructed by sequentially building the lower-layer structure to the upper floors in the same manner.

After joining the steel beam 1 and the wall column 2, as shown in Fig. 5-■, the floor formwork 10 is laid on the steel beam 1, and following the reinforcement of the slab reinforcement and column main reinforcement 11, the joining is carried out. Concrete 12 is placed on the floor formwork 10, and the construction of the (1) floor, that is, one cycle of construction is completed.

〔Effect of the invention〕

The present invention is as described above, and since the columns are made into wall pillars with a small width dimension, there is no Katsura-shaped protrusion on the plane, and the degree of freedom in plan planning is increased.

Furthermore, since the steel beams and wall columns are simply fixed using anchor bolts, they fit together well and have high workability.

Furthermore, unlike a normal rectangular or square cross section, the column has a longer shape in the direction in which the steel beam is anchored, so the wall column has a greater restraining effect on the steel beam, and the anchoring strength of the steel beam is fully demonstrated. It has the design advantage of being able to

[Brief explanation of the drawing]

Figure 1 - ■ - ■ are plan views showing the cross-sectional shape of the wall pillars;
Figure = LSI is a plan view showing an example of a frame, Figure 3 is a plan view showing the position of joints between steel beams, Figure 4 is an elevation view showing the details of the joint, Figure 5-1, I[ is a plan view and an elevation view, respectively, showing the joint between a steel beam and a wall column. 1... Steel beam, 2... Wall pillar, 3...
...Joint plate, 4...Bolt, 5...
...Anchor bolt, 6...Natsuto, 7...
... Base mortar, 8 ... Base plate, 9 ... Sleeve, 10 ... Floor formwork, 11 ... Column main reinforcement, Work 2 ... ····concrete. 0ri

Claims (1)

[Claims] (1) It is a composite structure consisting of reinforced concrete columns and steel beams, and the columns are wall pillars with a long cross section in the direction of the steel beam construction relative to their width, and the ends of the steel beams are connected to the wall pillars. A composite structure frame characterized in that the frame is joined and connected to an anchor bolt fixed to the head thereof.