High-bearing-capacity rib lattice type wall opening reinforcing framework

Abstract

The utility model relates to the technical field of constructional engineering, and discloses a high-bearing-capacity rib lattice type wall opening reinforcing framework which comprises a bearing beam and bearing columns assembled on the two sides of the bearing beam. According to the high-bearing-capacity rib lattice type wall opening reinforcing framework, through the arrangement of the bearing beams and the bearing columns, the first middle stiffening ribs and the second stiffening ribs are arranged in the hollow T-shaped steel and the fixing columns, the stability of components is greatly improved, and buckling is prevented. A cavity between the hollow T-shaped steel and the fixing column is through, and the self-compacting concrete can freely flow in the cavity. The steel and the cement mortar can be tightly connected together through the studs on the bearing beams and the bearing columns, relative displacement and cracking cannot occur under the action of external force, construction equipment of the device is simple, formwork erecting is not needed, the bearing beams, the bearing columns and the studs are conveyed to the site to be directly spliced after being machined in a factory, and construction is convenient. And tedious steel bar binding work does not need to be carried out.

Description

Technical Field

[0001] The utility model relates to the technical field of construction engineering, in particular to a high-load ribbed wall opening reinforcement framework. Background Technique

[0002] The urbanization process has been significantly accelerated, resulting in an increasing urban population density. Under the needs of people's production and life, high-rise buildings have gradually replaced multi-story buildings. Since the shear wall structure has a small horizontal displacement under the action of horizontal loads and has good ductility under reasonable design, the shear wall structure is widely used in high-rise building structures. After the building is completed, due to the needs of production and life, the building function changes, and it is necessary to transform the existing building by opening door openings, window openings, pipe openings, etc. In addition, with the continuous improvement of people's living standards, people have higher requirements for the functions of buildings. Therefore, structural engineers transform and reinforce the shear wall structure to meet people's needs for building multi-functions. Before construction, if it is necessary to open openings in advance due to requirements such as lighting and building functions, structural engineers will take reinforcement measures at the weak parts of the shear wall. However, when transforming an existing building, the steel bars and dimensions of the shear wall have been built according to the structural requirements. At this time, if a hole is opened in the shear wall, the continuity of the shear wall will be damaged because the steel bars are cut off, and the bearing capacity and lateral stiffness will decrease. Under the action of an earthquake, the seismic performance of the shear wall with an opening is very complex, and the existence of the opening will affect the bearing capacity, ductility, failure mode, etc. of the shear wall. The shear wall usually fails first near the opening. In the domestic and foreign seismic codes, there are corresponding structural measure requirements for the shear wall with a pre-opened hole, and a large number of scholars have studied the seismic performance of the shear wall with a pre-opened hole based on factors such as the size, position, and shape of the opening. However, there is a lack of systematic research on the corresponding influence when the hole is opened after the shear wall is built, especially the seismic performance of the shear wall with an opening, and there are also no corresponding measures for the influence on the overall bearing capacity of the structure after the opening. When opening a hole in the shear wall after it is built, on the one hand, the opening causes concrete damage, and on the other hand, the opening destroys the continuity of the shear wall, causing stress redistribution. Under the influence of the opening, the performance of the shear wall such as the lateral displacement stiffness and shear bearing capacity changes, reducing the seismic performance of the shear wall. During an earthquake, the shear wall usually starts to fail from near the opening, and the post-opened hole without the reinforcement bars for the opening exacerbates the damage degree of the shear wall. Therefore, in order to reduce the threat of earthquakes to people's lives and property, it is extremely important to reasonably reinforce the shear wall with a post-opened hole.

[0003] At present, the disadvantages of the high-load ribbed wall opening reinforcement framework on the market are as follows: The opening is determined before building construction. According to the given opening strengthening measures in the design, the opening reinforcement is tied around the opening, and then the formwork is supported and concrete is poured. Such strengthening measures have limitations in terms of the time of use and can only be implemented at the opening positions determined before construction. After the building construction is completed, using such measures requires removing the concrete around the opening and then re-supporting the formwork and pouring concrete, which increases the construction time. Moreover, for relatively large openings, simply strengthening with steel bars cannot meet the stress requirements under earthquake conditions. Therefore, we have designed a high-load ribbed wall opening reinforcement framework. Summary of the Utility Model

[0004] The technical problem solved by the utility model is to provide a high-load ribbed wall opening reinforcement framework with relatively high practicability, which can be operated simply and has a relatively simple structure, and solves the problems mentioned in the above background technology, that is, it can only be implemented at the opening positions determined before construction. After the building construction is completed, using such measures requires removing the concrete around the opening and then re-supporting the formwork and pouring concrete, which increases the construction time. Moreover, for relatively large openings, simply strengthening with steel bars cannot meet the stress requirements under earthquake conditions.

[0005] To achieve the above objectives, the utility model is realized through the following technical solutions: A high-load ribbed wall opening reinforcement framework includes a load-bearing beam and load-bearing columns assembled on both sides of the load-bearing beam;

[0006] The load-bearing beam includes a hollow T-shaped steel and a first intermediate stiffener fixedly connected to the center inside the hollow T-shaped steel. The intermediate stiffener symmetrically separates the inside of the hollow T-shaped steel. Six transverse stiffeners are respectively fixedly connected to both sides of the first intermediate stiffener. The tops and bottoms of the six transverse stiffeners are respectively fixedly connected to the inner top wall and inner bottom wall of the hollow T-shaped steel. Grouting holes are provided on both sides of the hollow T-shaped steel;

[0007] The load-bearing column includes a fixed steel fixedly connected to the inclined surfaces at both ends of the hollow T-shaped steel. The inside of the fixed steel is hollow, and a second intermediate stiffener is fixedly connected inside the fixed steel.

[0008] Optionally, arcs for transition are provided at the connections between the inner top wall and inner bottom wall of the hollow T-shaped steel and the top and bottom of the first intermediate stiffener.

[0009] Optionally, the six transverse stiffeners are divided into three groups, and one group of transverse stiffeners is fixedly connected to the same position on both sides of the first intermediate stiffener.

[0010] Optionally, the two ends of the first intermediate stiffener are flush with the two ends of the hollow T-shaped steel, and the two ends of the first intermediate stiffener are in contact with the second intermediate stiffener.

[0011] Optionally, stud bolts are fixedly connected to both side surfaces of the hollow T-shaped steel and the fixed steel.

[0012] Optionally, transition arcs are provided at the joints of both sides of the inner wall of the fixed steel and both ends of the second intermediate stiffening rib.

[0013] The utility model provides a high-load ribbed wall opening reinforcement framework, which has the following beneficial effects:

[0014] In this high-load ribbed wall opening reinforcement framework, through the setting of the load-bearing beam and the load-bearing column, the first intermediate stiffening rib and the second stiffening rib in the hollow T-shaped steel and the fixed column greatly provide the stability of the components and prevent buckling. The cavities between the hollow T-shaped steel and the fixed column are interconnected, and the self-compacting concrete can flow freely in the cavities. The stud bolts on the load-bearing beam and the load-bearing column can closely connect the two materials of steel and cement mortar, and there will be no relative displacement and cracking under external forces. The construction equipment of this device is simple, without formwork support. After the load-bearing beam, the load-bearing column, and the stud bolts are processed in the factory, they can be transported to the site and directly spliced, without the need for cumbersome steel bar binding work, improving the manual working environment, releasing labor force, improving work efficiency, shortening the construction period, saving much more construction time than other reinforcement methods, and not requiring production suspension or business suspension during reinforcement, which is especially suitable for emergency projects. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 is a schematic diagram of the hollow T-shaped steel structure of the utility model;

[0017] Figure 3 is a schematic cross-sectional structure diagram of the hollow T-shaped steel of the utility model;

[0018] Figure 4 is a schematic diagram of the fixed steel structure of the utility model;

[0019] Figure 5 is a schematic cross-sectional structure diagram of the fixed steel of the utility model

[0020] In the figure: 1, load-bearing beam; 101, hollow T-shaped steel; 102, first intermediate stiffening rib; 103, transverse stiffening rib; 104, grouting hole; 2, load-bearing column; 201, fixed steel; 202, second intermediate stiffening rib; 3, stud bolt. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figures 1 to 4 , the present utility model provides a technical solution: a high-load ribbed wall opening reinforcement framework, including a load-bearing beam 1 and load-bearing columns 2 assembled on both sides of the load-bearing beam 1. The load-bearing beam 1 includes a hollow T-shaped steel 101 and a first intermediate stiffening rib 102 fixedly connected to the center inside the hollow T-shaped steel 101. The first intermediate stiffening rib 102 symmetrically separates the inside of the hollow T-shaped steel 101. Six transverse stiffening ribs 103 are respectively fixedly connected to both sides of the first intermediate stiffening rib 102. The tops and bottoms of the six transverse stiffening ribs 103 are respectively fixedly connected to the inner top wall and inner bottom wall of the hollow T-shaped steel 101. Grouting holes 104 are provided on both sides of the hollow T-shaped steel 101. The load-bearing column 2 includes a fixed steel 201 fixedly connected to the inclined surfaces at both ends of the hollow T-shaped steel 101. The inside of the fixed steel 201 is hollow. A second intermediate stiffening rib 202 is fixedly connected inside the fixed steel 201. The first intermediate stiffening rib 102 and the second intermediate stiffening rib 202 inside the hollow T-shaped steel 101 and the fixed steel 201 greatly provide the stability of the component and prevent buckling. The cavities between the hollow T-shaped steel 101 and the fixed steel 201 are interconnected, and the self-compacting concrete can flow freely in the cavities.

[0023] Furthermore, transition arcs are provided at the joints between the inner top wall and inner bottom wall of the hollow T-shaped steel 101 and the top and bottom of the first intermediate stiffening rib 102. Among them, the connection between the first intermediate stiffening rib 102 and the hollow T-shaped steel 101 is in a transition arc, which can avoid the generation of concentrated stress at the joint part.

[0024] Furthermore, the six transverse stiffening ribs 103 are divided into three groups. One group of transverse stiffening ribs 103 is fixedly connected to the same position on both sides of the first intermediate stiffening rib. Among them, the presence of the transverse stiffening ribs 103 can prevent the hollow T-shaped steel 101 from buckling and improve the bearing capacity of the beam.

[0025] Furthermore, the two ends of the first intermediate stiffening rib 102 are flush with the two ends of the hollow T-shaped steel 101, and the two ends of the first intermediate stiffening rib 102 are in contact with the second intermediate stiffening rib 202. Among them, the inclined surfaces at both ends of the hollow T-shaped steel 101 are in contact with the top inclined surfaces of the fixed steel 201, so that the interiors of the hollow T-shaped steel 101 and the fixed steel 201 are interconnected.

[0026] Furthermore, stud bolts 3 are fixedly connected to both side surfaces of the hollow T-shaped steel 101 and the fixed steel 201. Among them, the stud bolts 3 on the hollow T-shaped steel 101 and the fixed steel 201 can tightly connect the two materials of steel and cement mortar together, and there will be no relative displacement and cracking under external forces.

[0027] Furthermore, an arc for transition is provided at the connection between the two ends of the second intermediate stiffening rib 202 and both sides of the inner wall of the fixed steel 201.

[0028] In the present utility model, the working steps of the device are as follows:

[0029] First step: After installing the device at the hole position, self-compacting concrete is injected into the hollow T-shaped steel 101 through the grouting hole 104. The self-compacting concrete will flow into the fixed steel 201 through the cavity. After filling, the grouting hole 104 is blocked with a hole cover and fixed. After a period of time, the self-compacting concrete will coagulate and harden;

[0030] Second step: After the self-compacting concrete coagulates and hardens, plastering can be carried out on the surface of the framework. Due to the existence of the stud bolts 3, the plastering adheres firmly to the components. After plastering, putty can be applied and latex paint can be brushed. The reinforced framework can be made exactly the same as the surrounding environment.

[0031] All the standard parts used therein can be purchased from the market, and can also be customized according to the description of the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art, and the components known to those skilled in the art, their structures and principles can all be known by those skilled in the art through technical manuals or through conventional experimental methods.

[0032] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A high-load bearing ribbed wall hole reinforcement frame, characterized in that: It comprises a load-bearing beam (1) and load-bearing columns (2) mounted on both sides of the load-bearing beam (1); The load-bearing beam (1) comprises a hollow T-shaped steel (101) and a first middle stiffening rib (102) fixedly connected to the center of the hollow T-shaped steel (101), wherein the first middle stiffening rib (102) symmetrically separates the interior of the hollow T-shaped steel (101), six transverse stiffening ribs (103) are fixedly connected to both sides of the first middle stiffening rib (102), the top and bottom of the six transverse stiffening ribs (103) are fixedly connected to the inner top wall and the inner bottom wall of the hollow T-shaped steel (101), and grouting holes (104) are provided on both sides of the hollow T-shaped steel (101); The load-bearing column (2) comprises a fixing steel (201) fixedly connected to the inclined surfaces at both ends of the hollow T-shaped steel (101); the interior of the fixing steel (201) is arranged to be hollow; and a second middle stiffening rib (202) is fixedly connected to the interior of the fixing steel (201).

2. A high-load bearing ribbed wall hole reinforcement frame according to claim 1, characterized in that: The connection points between the inner top wall and the inner bottom wall of the hollow T-shaped steel (101) and the top and bottom of the first middle stiffening rib (102) are all provided with transition arcs.

3. A high-load bearing ribbed wall hole reinforcement frame according to claim 1, characterized in that: The six transverse stiffening ribs (103) are divided into three groups, and the transverse stiffening ribs (103) of one group are fixedly connected to the same position on both sides of the first middle stiffening rib (102).

4. A high-load bearing ribbed wall hole reinforcement frame according to claim 1, characterized in that: The two ends of the first middle stiffening rib (102) are flush with the two ends of the hollow T-shaped steel (101), and the two ends of the first middle stiffening rib (102) are in contact with the second middle stiffening rib (202).

5. The high-load bearing ribbed wall hole reinforcement frame according to claim 1, characterized in that: The surfaces on both sides of the hollow T-shaped steel (101) and the fixing steel (201) are fixedly connected with bolts (3).

6. The high-load bearing ribbed wall hole reinforcement frame according to claim 1, characterized in that: Transition arcs are provided at the connection points between the two sides of the inner wall of the fixing steel (201) and the two ends of the second middle stiffening rib.

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