CN204570988U - Reinforced concrete frame column load conversion device - Google Patents

Abstract

The utility model is specifically a reinforced concrete frame column load conversion device used for seismic isolation and reinforcement of existing buildings, which solves the problems of time-consuming and labor-intensive construction of the existing seismic isolation device and large disturbance to the frame column. The reinforced concrete frame column load conversion device includes two supporting steel columns distributed up and down, and the supporting steel columns are composed of square steel pipes and support plates fixed in the square steel pipes. Both ends of the supporting steel columns are fixed with connecting plates. Stiffeners distributed front and back and stiffeners I distributed left and right are arranged between the plates and the supporting steel columns fixed thereto, and jacks are arranged between the two connecting plates on the adjacent side of the two supporting steel columns. The structure design of the utility model is reasonable and reliable, and has little influence on the disturbance of the beams and columns of the original frame structure. The advantages can meet the maintenance and replacement of seismic isolation bearings in the future.

Description

Reinforced Concrete Frame Column Load Transfer Device

technical field

The utility model relates to the field of building engineering construction, in particular to a reinforced concrete frame column load conversion device used for seismic isolation and reinforcement of existing buildings.

Background technique

In recent years, earthquake disasters have occurred in many places in my country. Although many existing buildings have been fortified against earthquakes, they cannot meet the requirements of current regulations in my country. If they are demolished and rebuilt, the cost will be high and wasteful. Still can continue to use.

Using seismic isolation technology to strengthen the building structure, compared with the traditional seismic reinforcement method, its reinforcement idea has changed from simple rigid anti-seismic to economical and effective shock absorption and isolation, from the original "hard resistance" to "drainage", Transform the original absorption of earthquake energy by plastic deformation of building structural components into isolation and absorption of earthquake energy by the isolation layer, reduce the damage to the upper structure caused by the earthquake, and achieve the purpose of improving the earthquake resistance of the building structure.

Generally, only the foundation part of the building structure is constructed during foundation isolation reinforcement, which does not affect the building function and normal use of the superstructure. It is an economical and applicable seismic reinforcement method.

At present, the commonly used method of applying seismic isolation devices to existing buildings (frame structures) is to fix the upper joists of the supporting devices on the reinforced concrete columns of the original structure through column hoops, so that there is a certain disturbance to the original concrete column components, and the All of them are re-made and installed during the process, which is time-consuming and labor-intensive, which affects the construction efficiency.

Contents of the invention

The utility model provides a reinforced concrete frame column load conversion device in order to solve the problems of time-consuming and labor-intensive construction of the existing seismic isolation device and large disturbance to the frame column.

The utility model is realized by adopting the following technical scheme: the reinforced concrete frame column load conversion device includes two supporting steel columns distributed up and down, and the supporting steel columns are all composed of square steel pipes and support plates fixed in the square steel pipes. Both ends of the column are fixed with connecting plates. Between the connecting plates and the supporting steel columns fixed to them, there are stiffening plates distributed front and back and stiffening plates I distributed left and right. Between the two connecting plates on the adjacent sides of the two supporting steel columns There is a jack in the room.

During operation, check the flatness of the contact area between the concrete member and the supporting steel column, and use a trowel to smooth the surface of the contact surface between the supporting steel column and the concrete member, and then place the upper supporting steel column, reinforced concrete floor and reinforced concrete frame Beam connection, then connect the supporting steel column located at the lower part with the reinforced concrete foundation bolts, and finally arrange the jack between the two supporting steel columns, so as to tighten the upper and lower supporting steel columns to realize the load transfer of the frame columns to be strengthened by seismic isolation, The invention overcomes the problems of time-consuming and labor-intensive construction of existing seismic isolation devices and large disturbance to frame columns.

The number of stiffening plates on the adjacent side of the two supporting steel columns is three, and the number of stiffening plates I is two; the number of stiffening plates on the opposite side of the two supporting steel columns is one, and the number of stiffening plates I is Both are two pieces.

The optimized design of the number of stiffeners and stiffeners I further improves the stability of the supporting steel column.

The structure design of the utility model is reasonable and reliable, and has little disturbance effect on the beams and columns of the original frame structure. The advantages can meet the maintenance and replacement of seismic isolation bearings in the future.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a schematic cross-sectional view of A-A in Fig. 1;

FIG. 3 is a schematic cross-sectional view of B-B in FIG. 1 .

Among the figure: 1-supporting steel column, 2-square steel pipe, 3-supporting plate, 4-connecting plate, 5-stiffening plate, 6-stiffening plate 1, 7-jack.

Detailed ways

The reinforced concrete frame column load conversion device includes two supporting steel columns 1 distributed up and down, and the supporting steel columns 1 are composed of square steel tubes 2 and support plates 3 fixed in the square steel tubes 2, and the two ends of the supporting steel columns 1 are The connecting plate 4 is fixed, and the stiffening plate 5 distributed front and back and the stiffening plate I6 distributed left and right are arranged between the connecting plate 4 and the supporting steel column 1 fixed thereto. The two connecting plates 4 on the adjacent sides of the two supporting steel columns 1 Jacks 7 are arranged between them.

The number of stiffening plates 5 on the adjacent sides of the two supporting steel columns 1 is three, and the number of stiffening plates 16 is two; the number of stiffening plates 5 on the opposite side of the two supporting steel columns 1 is one, and the number of stiffening plates The number of boards I6 is two.

In the specific implementation process, for the reinforced concrete frame columns to be installed with seismic isolation bearings, the load conversion device is installed at all frame beam ends connected to the frame columns; the components of the supporting steel column 1 are connected by welding, and the upper The connecting plate 4 at the top of the supporting steel column 1 is temporarily fixed to the bottom of the frame beam on the upper floor by two anchor bolts and four threaded steel bolts with straight thread heads. Bolted roof and original structural floor.

Claims (2)

1. a reinforced concrete frame column load conversion device, it is characterized in that: comprise two brace steel posts (1) distributed up and down, and brace steel post (1) is all made up of rectangular steel tube (2) and the gripper shoe (3) be fixed in rectangular steel tube (2), the two ends of brace steel post (1) are all fixed with junction plate (4), junction plate (4) and and its fixing brace steel post (1) between be provided with before and after the stiffener I(6 that distributes of the stiffener (5) that distributes and left and right), jack (7) is provided with between two junction plates (4) of two brace steel posts (1) adjacent side.

2. reinforced concrete frame column load conversion device according to claim 1, is characterized in that: stiffener (5) quantity of two brace steel posts (1) adjacent side is three pieces, and stiffener I(6) quantity be two pieces; Stiffener (5) quantity of two brace steel posts (1) opposing side is one piece, and stiffener I(6) quantity be two pieces.