CN206091502U - Use concrete frame antidetonation reinforced structure of steel sheet net - Google Patents

Abstract

The utility model discloses an use concrete frame antidetonation reinforced structure of steel sheet net constitutes and treats the reinforcing concrete frame by waiting to consolidate the frame post and waiting to consolidate the frame roof beam, and wait to consolidate frame post and adjacent two adjacent two of same facade and wait to consolidate to equally divide between the frame roof beam and do not be connected with the steel sheet net, steel sheet net with treat between the reinforcing concrete frame to be fixed with the restraint external member through the connecting piece, the steel sheet net adopts steel yield strength to be less than the steel of restraint external member, the connecting piece includes the high strength bolt peace treaty beam set spare that steel sheet net and restraint external member be connected and treats thoughtlessly frame attach's chemical anchor bolts with fixed attention of reinforcement. The restraint external member can improve the ductility of waiting to consolidate frame beam column. The steel sheet net can improve bearing capacity and the power consumption ability of treating the reinforced structure. The utility model discloses it is few to carry out structural strengthening wet trade work load, and the restraint external member all can be prefabricated in the mill, the on -the -spot installation that only need accomplish chemical anchor bolts, high strength bolt, and the industrialization degree is high, and it is convenient to be under construction, reduces the influence to building normal use.

Description

A Concrete Frame Seismic Reinforcement Structure Using Steel Mesh

technical field

The utility model belongs to the technical field of anti-seismic reinforcement, in particular to an anti-seismic reinforcement structure of a concrete frame.

Background technique

The frame structure is a structure composed of beams and columns that jointly resist the horizontal and vertical loads that occur during use. It has the advantages of flexible space separation, light weight, good for earthquake resistance, material saving and flexible building layout. Large use space, often used in teaching buildings, residential buildings, office buildings and commercial buildings. In recent years, there have been many strong earthquakes around the world, which have caused great harm to local buildings, economy and people's lives. It is a difficult problem to be solved urgently to inspect and strengthen the post-earthquake buildings to ensure their normal use during the remaining service period.

At present, the commonly used anti-seismic direct reinforcement methods for concrete frame structures in my country are as follows: enlarged section reinforcement method, replacement concrete reinforcement method, externally bonded steel reinforcement method, externally bonded steel plate reinforcement method, pasted fiber composite material reinforcement method, and wire winding reinforcement method method, high-strength steel wire rope mesh-composite mortar additional layer reinforcement method. The above traditional reinforcement methods are difficult to take into account the improvement of structural bearing capacity and ductility, and the use of damaged buildings must be suspended due to reinforcement construction operations, which affects normal life.

Therefore, it is urgent to propose an anti-seismic strengthening structure that can improve the structural bearing capacity and ductility and is convenient for construction.

Utility model content

Aiming at the problems existing in the prior art, the utility model provides a concrete frame anti-seismic reinforcement structure using expanded metal mesh. The utility model reinforces the structure while improving the structural bearing capacity and ductility, and the construction is convenient.

In order to solve the above technical problems, the utility model proposes a concrete frame anti-seismic reinforcement structure using expanded metal mesh. The concrete frame to be reinforced is composed of frame columns to be reinforced and frame beams to be reinforced. The reinforced frame column and the two adjacent frame beams to be reinforced are respectively connected with steel mesh, and a column restraint kit is arranged between the steel mesh and the frame column to be strengthened, and the steel mesh and the frame beam to be strengthened A beam constraint set and two equilateral angle steels are provided; the column constraint set includes two semi-enclosed channel-shaped steel members, and the two channel-shaped steel members are respectively arranged on both sides of the frame column to be strengthened and arranged opposite each other in an embracing shape. Clamp and anchor the steel mesh at one side of the two flange ends of the two channel-shaped steel members; clamp and anchor the steel mesh at the other two flange ends of the two channel-shaped steel members; the channel-shaped steel member and the frame to be reinforced The columns are connected by chemical anchor bolts; the beam constraint kit includes two Z-shaped angle steel profiles, the two Z-shaped angle steel profiles are respectively arranged on both sides of the bottom of the frame beam to be reinforced, and one side flange of the two Z-shaped angle steel profiles Clamp and anchor the steel mesh; the flange on the other side of the Z-shaped angle steel is connected to the frame beam to be reinforced by chemical anchor bolts; one side of the two equilateral angle steels is oppositely arranged to clamp and anchor the steel mesh, The other side of the two equilateral angle steels is connected with the floor slab at the top of the frame beam to be reinforced through chemical anchor bolts.

In the present invention, the expanded steel mesh is made of steel whose yield strength is lower than that of the column restraint set or the beam restraint set. The anchoring adopts high-strength bolts.

Compared with the prior art, the beneficial effects of the utility model are:

The restraint kit in the utility model can improve its working performance by enclosing the frame beams and frame columns to be reinforced, so as to achieve the purpose of strengthening the structure after an earthquake, so that the structure to be reinforced can continue to meet the use requirements.

The reinforcement structure of the utility model takes into account the improvement of the bearing capacity and ductility of the structure to be reinforced, the restraint kit can meet the improvement of the ductility of the frame beam and frame column to be reinforced, and the steel mesh can meet the improvement of the bearing capacity of the structure to be reinforced. At the same time, the steel mesh can pass through itself The deformation can greatly improve the energy dissipation capacity of the concrete structure, which solves the deficiency of the traditional frame structure relying on the frictional energy dissipation of filling oblique cracks in the wall.

The workload of wet work is less in the process of strengthening with the added structure of the utility model, and the restraint kits can be processed in the factory, and only drilling and installation of chemical anchor bolts and high-strength bolts are required on site. The degree of industrialization is high and the construction is convenient. , to reduce the impact on the normal use of the building.

Description of drawings

Fig. 1 is the front view of the concrete frame anti-seismic reinforcement structure of the utility model application expanded metal;

Fig. 2 is the front view of the column constraint kit in the reinforcement structure of the utility model;

Figure 3 is a top view of the column restraint kit shown in Figure 2;

Fig. 4 is the front view of the beam constraint kit in the reinforcement structure of the present invention;

Figure 5 is a side view of the beam restraint kit shown in Figure 4;

Fig. 6 is the front view of the medium-side angle steel in the reinforcement structure of the utility model;

Fig. 7 is a side view of the equilateral angle shown in Fig. 6;

Fig. 8 is a sectional view of a frame column applying the utility model;

Fig. 9 is a cross-sectional view of a frame beam and a floor slab applying the utility model.

In the picture:

1-frame column to be reinforced, 2-frame beam to be reinforced, 3-floor, 4-steel mesh, 5-channel steel member, 6-beam constraint kit, 7-equal angle steel, 81, 82, 83-high-strength bolts, 91, 92, 93 - chemical anchors.

detailed description

The technical scheme of the utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments, and the described specific embodiments are only for explaining the utility model, and are not intended to limit the utility model.

As shown in Figure 1, the utility model proposes a concrete frame anti-seismic reinforcement structure using expanded metal mesh. The concrete frame to be reinforced is composed of frame columns to be reinforced and frame beams to be reinforced. A steel mesh 4 is respectively connected between the frame column to be strengthened and two adjacent frame beams to be strengthened, and a column restraint kit is arranged between the steel mesh 4 and the frame column to be reinforced, and the steel mesh 4 and the frame beam to be reinforced A beam restraint kit and two equilateral angle steels 7 are provided between the frame beams.

The column restraint kit includes two semi-enclosed channel-shaped steel members 5, as shown in Figure 2 and Figure 3, the two channel-shaped steel members 5 are respectively arranged on both sides of the frame column to be reinforced, and are arranged oppositely in an embracing shape. Two flange ends on one side of two channel-shaped steel members 5 clamp the steel mesh 4 and anchor with high-strength bolts 81; two flange ends on the other side of the two channel-shaped steel members 5 clamp and anchor the steel mesh 4; The steel member 5 is connected to the frame column to be reinforced by chemical anchor bolts 91, as shown in FIG. 8 .

As shown in Figures 4 and 5, the beam restraint kit includes two Z-shaped angle steel profiles 6, and the two Z-shaped angle steel profiles 6 are respectively arranged on both sides of the bottom of the frame beam 2 to be reinforced, and the two Z-shaped angle steel profiles 6 One side flange of the steel mesh 4 is clamped and anchored with high-strength bolts 82; the other side flange of the Z-shaped angle steel 6 is connected with the frame beam to be reinforced by chemical anchor bolts 92, as shown in FIG. 9 .

As shown in Figures 6 and 7, one side of the two equilateral angle steels 7 is oppositely arranged to clamp the expanded metal 4 and anchor it with high-strength bolts 83, and the other side of the two equilateral angle steels 7 is connected to the top of the frame beam 2 to be reinforced. The floor plates 3 are connected by chemical anchor bolts 93, as shown in FIG. 9 .

The construction operation steps of the concrete frame anti-seismic reinforcement structure using expanded metal mesh in the utility model are as follows:

(1) During reinforcement, two columns of holes are opened on the surface of the frame column 1 to be reinforced, and the opening positions avoid the position where the steel bars are placed inside the frame column. As shown in Figure 2, according to the opening conditions of the frame column 1 surface to be reinforced, Holes are drilled at corresponding positions on the channel-shaped steel member 5 of the column restraint kit.

(2) As shown in Figure 1 and Figure 8, use epoxy resin to paste the channel steel member 5 with holes on both sides of the frame column 1 to be reinforced, and at the same time place the expanded metal mesh 4 on the concrete frame to be reinforced (i.e. In the center of two adjacent frame columns to be reinforced and two adjacent frame beams to be reinforced) on the same facade, the edge of the steel mesh 4 is clamped between the flange ends of the two sets of column restraint sets and fastened with high-strength bolts 81 for anchoring, and through the openings on the surface of the frame column 1 to be strengthened and the channel-shaped steel member 5, use chemical anchor bolts 91 to fix the column restraint kit.

(3) As shown in Fig. 1, Fig. 4 and Fig. 6, holes are made on both sides of the lower part of the frame beam 2 to be reinforced and on the surface of the floor 3, and the opening positions avoid the positions where the steel bars are placed inside the frame beam and the floor slab. Reinforcing the holes on the surface of the frame beam 2 and the floor 3, and opening holes on the corresponding positions of the Z-shaped angle steel 6 and the equilateral angle steel 7.

(4) As shown in Figure 1 and Figure 9, use epoxy resin to paste the Z-shaped angle steel 6 and the equilateral angle steel 7 on the two sides of the frame beam 2 to be strengthened and the surface of the floor 3, and at the same time, the steel plate The edge of the net 4 is clamped between the ends of one side flange of two Z-shaped angle steel profiles 6; through the openings at the corresponding positions on the corresponding components, chemical anchor bolts 92 are used to carry out the Z-shaped angle steel profiles 6 and the frame beam 2 to be reinforced. Fixing, the equilateral angle steel 7 and the floor 3 are fixed with the chemical anchor bolt 93.

(5) As shown in Figure 1, use high-strength bolts 81, 82, and 83 to connect the column restraint kit (two channel steel members 5) and the steel mesh 4, and the beam restraint kit (two Z-shaped angle steel members 6) and the steel mesh respectively. 4 and two equilateral angle steels 7 are fixed to the expanded metal mesh 4; finally, anti-rust treatment is carried out on the surface of each constraint kit.

Although the utility model has been described above in conjunction with the accompanying drawings, the utility model is not limited to the above-mentioned specific embodiments, and the above-mentioned specific embodiments are only illustrative, rather than restrictive. Under the enlightenment of the utility model, many deformations can be made without departing from the purpose of the utility model, and these all belong to the protection of the utility model.

Claims (3)

1. An anti-seismic reinforcement structure of a concrete frame using expanded metal mesh is composed of a frame column to be reinforced and a frame beam to be reinforced to form a concrete frame to be reinforced, and is characterized in that two adjacent frame columns to be reinforced on the same facade and the corresponding A steel mesh (4) is respectively connected between two adjacent frame beams to be reinforced, and a column restraint package is provided between the steel mesh (4) and the frame column to be reinforced, and the steel mesh (4) and the frame column to be reinforced A beam restraint kit and two equilateral angle steels (7) are provided between the frame beams; The column restraint set includes two semi-enclosed channel-shaped steel members (5), the two channel-shaped steel members (5) are respectively arranged on both sides of the frame column to be reinforced, and are arranged oppositely in an embracing shape, and the two channel-shaped steel members ( 5) clamp and anchor the steel mesh (4) at the ends of the two flanges on one side; clamp and anchor the steel mesh (4) at the ends of the two flanges at the other side of the two channel steel members (5); The steel member (5) is connected to the frame column to be reinforced by chemical anchor bolts (91); The beam constraint kit includes two Z-shaped angle steel profiles (6), which are respectively arranged on both sides of the bottom of the frame beam (2) to be reinforced, and the two Z-shaped angle steel profiles (6) One side flange clamps and anchors the expanded metal mesh (4); the other side flange of the zigzag angle steel section steel (6) is connected with the frame beam to be reinforced by a chemical anchor bolt (92); One side of the two equilateral angle steels (7) is oppositely arranged to clamp and anchor the steel mesh (4), and the other side of the two equilateral angle steels (7) is connected to the floor (3) on the top of the frame beam (2) to be reinforced. are connected by chemical anchor bolts (93). 2. The concrete frame seismic reinforcement structure using expanded metal according to claim 1, characterized in that the expanded metal (4) uses steel with a yield strength lower than that of the column restraint set or the beam restraint set. 3. The concrete frame anti-seismic reinforcement structure using expanded metal according to claim 1, characterized in that, the anchoring adopts high-strength bolts.