CN113833294A - Method for reinforcing wall structure by telescopic flat steel system - Google Patents
Method for reinforcing wall structure by telescopic flat steel system Download PDFInfo
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- CN113833294A CN113833294A CN202110997499.8A CN202110997499A CN113833294A CN 113833294 A CN113833294 A CN 113833294A CN 202110997499 A CN202110997499 A CN 202110997499A CN 113833294 A CN113833294 A CN 113833294A
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- flat steel
- telescopic
- steel strip
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
- E04G23/0222—Replacing or adding wall ties
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/027—Preventive constructional measures against earthquake damage in existing buildings
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- Engineering & Computer Science (AREA)
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- Structural Engineering (AREA)
- Emergency Management (AREA)
- Environmental & Geological Engineering (AREA)
- Civil Engineering (AREA)
- Business, Economics & Management (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Working Measures On Existing Buildindgs (AREA)
Abstract
The invention relates to the technical field of house reinforcement, in particular to a method for reinforcing a wall structure by a telescopic flat steel system. The method comprises the following steps: step 1: arranging angle steels at four corners of the wall; step 2: mounting a telescopic flat steel belt, wherein the telescopic flat steel belt is fixed through angle steels at four corners of a wall body; and step 3: the steel plate fixing device is characterized in that a horizontal fixing flat steel belt and a vertical fixing flat steel belt are arranged on the telescopic flat steel belt, the horizontal fixing flat steel belt and the vertical fixing flat steel belt are all fixedly connected with a wall body, and the flat steel reinforcing layer is formed by angle steel, the telescopic flat steel belt, the horizontal fixing flat steel belt and the vertical fixing flat steel belt. The method has the advantages of convenient construction, simple operation, no need of special large-scale construction machines, less damage to the masonry wall to be reinforced and no influence on production and life. The method has certain economical efficiency and reliability, and is suitable for the maintenance and reinforcement work of the whole wall body on a large scale.
Description
Technical Field
The invention relates to the technical field of house reinforcement, in particular to a method for reinforcing a wall structure by a telescopic flat steel system.
Background
At present, a large number of masonry structure houses exist in rural areas in China, the buildings are widely used due to low price and convenient material acquisition in the early stage, and as time goes on, the masonry structure generally has the problems of material performance degradation and insufficient wall bearing capacity caused by performance reduction of a bonding material, so that a masonry wall reinforcement technology is urgently needed.
For buildings with insufficient earthquake-resistant bearing capacity of masonry walls in China, reinforcing methods generally selected include reinforced concrete surface course reinforcing method, reinforcing of reinforcing mesh cement mortar surface course, sticking of carbon fiber cloth and the like. For buildings with integrity not meeting the requirements, the optional reinforcing method comprises the technology of reinforcing the integrity of the buildings by arranging the external ring beam and the constructional column in a crossed manner, arranging the steel pull rod in a crossed manner to reinforce the wall, adding the superposed layer at the bottom of the floor slab and the like. However, the following disadvantages also exist:
the reinforced concrete surface course reinforcing method has long construction period, and can reduce the use area of the original building by reinforcing the wall body, and the method has larger self weight and can change the original load distribution and structural stress performance.
The reinforcing method of the reinforcement mesh mortar surface layer has limited improvement on the seismic capacity of the wall body, cannot meet the requirement of greatly improving the seismic capacity of the structure, and has certain limitation.
The method for sticking the carbon fiber cloth can reduce the deformation capacity of the component and has higher reinforcing cost due to the poor plastic deformation capacity of the carbon fiber cloth.
Disclosure of Invention
The invention aims to solve the technical problem of providing a reinforcement technology which is convenient to construct, simple to operate, high in reliability, flexible and various in reinforcement and excellent in economical efficiency.
In order to solve the above problems, the present invention provides: a method for reinforcing a wall structure by a telescopic flat steel system not only can provide lateral restraint for a wall body, but also can improve the overall strength of a masonry. The telescopic flat steel system has a telescopic function and is convenient and simple to operate; the process of wet operation in traditional reinforcement is avoided, and the method has the advantages of being fast in construction process, high in reliability and the like.
In the above-mentioned flexible flat steel system is consolidated, scalable flat steel band, the fixed flat steel band of level, the fixed flat steel band of vertical are attached to the wall body surface to fix through split bolt and former wall body, weld with the equilateral angle steel on four edges and corners of wall body simultaneously and consolidate. The specific operation is as follows:
a method for reinforcing a wall structure by a telescopic flat steel system comprises the following steps:
step 1: arranging angle steels at four corners of the wall;
step 2: mounting a telescopic flat steel belt, wherein the telescopic flat steel belt is fixed through angle steels at four corners of a wall body;
and step 3: the steel plate fixing device is characterized in that a horizontal fixing flat steel belt and a vertical fixing flat steel belt are arranged on the telescopic flat steel belt, the horizontal fixing flat steel belt and the vertical fixing flat steel belt are all fixedly connected with a wall body, and the flat steel reinforcing layer is formed by angle steel, the telescopic flat steel belt, the horizontal fixing flat steel belt and the vertical fixing flat steel belt.
The quantity of the horizontal fixed flat steel strips and the vertical fixed flat steel strips can be increased or decreased according to the field requirements so as to meet the wall reinforcement of different heights and widths.
Preferably, the angle steel at the bottom is deeply inserted into the ring beam or the foundation beam through the anchor bolt; the angle steel positioned at the top is fixed with the upper floor. Therefore, the effect of fixing the wall body can be further achieved.
Preferably, the telescopic flat steel strip, the horizontal fixed flat steel strip and the vertical fixed flat steel strip are connected and fixed with the wall body through split bolts. The split bolt is used, so that the construction is more convenient, the construction speed is high, and the overall stability is good.
Preferably, the horizontal fixed flat steel strip passes through the intersection of the retractable flat steel strips; the vertical fixed flat steel strip penetrates through the intersection point of the telescopic flat steel strip. By such arrangement, the stability of the flat steel system can be further improved.
Preferably, the edges of the angle steel at the two ends of the wall body are distant from the two ends of the telescopic flat steel belt. Avoiding the angle steel from being in extrusion contact with other connecting parts.
Preferably, the horizontal fixed flat steel strip and the vertical fixed flat steel strip are connected in a segmented welding mode, so that the horizontal fixed flat steel strip and the vertical fixed flat steel strip are located on the same plane. By the arrangement, the thickness of the flat steel belt at the intersection point can be reduced, so that the thickness of the reinforcing surface layer is reduced.
Preferably, the surfaces of the telescopic flat steel strip, the horizontal fixed flat steel strip, the vertical fixed flat steel strip and the angle steel are coated with antirust paint.
Preferably, the telescopic included angle of the telescopic flat steel strip is 20-150 degrees. Thereby facilitating the contraction and storage.
Preferably, the telescopic included angle of the telescopic flat steel strip is 40-50 degrees when the telescopic flat steel strip is fixed on a wall body. To ensure the angle of the main tensile stress is consistent.
Preferably, after step 3 is completed, a polymer mortar is used for plastering to form a plastering surface layer with the total thickness of 30mm, the plastering surface adopts a layered plastering method, after the first plastering surface layer is initially set, the gap between the flat steel and the wall body is compacted by the polymer mortar, a steel wire mesh is arranged outside the first plastering surface layer, and then plastering is continued. The surface cracking caused by the excessively thick surface layer can be better prevented.
Advantageous effects
By adopting the method, the on-site wet operation is less, the construction is convenient, the operation is simple, special large-scale construction machines are not needed, the masonry wall to be reinforced is less damaged, and the production life is not influenced. The method has certain economical efficiency and reliability, and is suitable for the maintenance and reinforcement work of the whole wall body on a large scale.
Aiming at the reinforcement of the wall body, the telescopic flat steel belt system is organically combined with the wall body, so that the overall stability of the wall body is improved, the self rigidity of the structure is increased, the shearing-resistant bearing capacity is increased, and the reinforcement effect is better. Even if the wall body is damaged, the reinforcing structure of the wall body becomes a system due to the existence of the horizontal and vertical fixed flat steel belts, and the anti-overturning performance of the wall body is effectively improved.
The telescopic flat steel belt system is adopted for reinforcement, the installation and the disassembly are simple, the assembly of the flat steel belt on a construction site is reduced, and the site construction efficiency is improved. When the component is in a contraction state, the component can be folded in a telescopic mode, and the net rack holes become small, so that construction transportation or storage is facilitated.
When the member is in an extension state, the member can be opened at a certain angle according to the needs of users, and the number of the middle rod pieces is increased or shortened, so that the wall body reinforcement with different heights and widths is met.
Drawings
FIG. 1: the schematic diagram of wall body reinforcement by the telescopic flat steel belt.
FIG. 2: the side section view of the reinforced wall floor node.
FIG. 3: the cross wall joint is reinforced schematically.
FIG. 4: the method of the invention is a schematic diagram for reinforcing the joint of the longitudinal wall and the transverse wall.
FIG. 5: the structure of the expanded structure of the retractable flat steel strip used in the embodiment of the present invention.
FIG. 6: a schematic drawing of the contraction of a retractable flat steel strip used in an embodiment of the invention.
FIG. 7: point A structure detail diagram.
The floor comprises a floor 1, a painting surface layer 2, polymer mortar 3, a ring beam or a foundation beam 4, a vertical fixed flat steel strip 5, angle steel 6, split bolts 7, a wall body 8, a telescopic flat steel strip 9, bolt holes 10, a horizontal fixed flat steel strip 11, a flat steel reinforcing layer 12, anchor bolts 13 and welding seams 14.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
The present invention will be described in detail below with reference to the attached drawings to facilitate understanding of the present invention by those skilled in the art.
As shown in fig. 1, which is a front view of the reinforced wall of the present invention, it can be seen that the reinforced wall includes four angle irons 6 located at the periphery of a wall 8, and the four angle irons 6 in this embodiment are connected to each other to form a square frame; the steel angle fixing device is characterized by further comprising a telescopic flat steel belt 9, four corners of the telescopic flat steel belt 9 are connected with the edge, located on the upper portion of the wall body 8, of the angle steel 6 and the edge, located on the lower portion of the wall body, of the angle steel 6 respectively, and a certain distance is reserved between the four corners of the telescopic flat steel belt 9 and the edges, located on the left side and the right side of the wall body, of the angle steel 6. The angle steel 6 at the bottom is deeply inserted into the ring beam or the foundation beam 4 through an anchor bolt 13; the angle steel 6 positioned at the top is fixed with the floor slab 1 at the upper part through a split bolt 7.
As shown in fig. 1, a horizontal fixed flat steel strip 11 and three vertical fixed flat steel strips 5 are disposed on the retractable flat steel strip 9, the horizontal fixed flat steel strip 11 passes through the intersection of the retractable flat steel strip 9 at the middle, and the three vertical fixed flat steel strips 5 are also uniformly distributed and respectively pass through the intersection of the retractable flat steel strip 9. Thereby forming a geometrically variable system and a geometrically invariable system and increasing the stability of the system.
The flat steel strips at the cross points can be connected by welding or by bolts. In the embodiment, the split bolts 7 are arranged at the intersection points, and the split bolts 7 penetrate through the intersection points of the flat steel system and the wall body 8, so that the flat steel system is tightly fixed on the wall body 8. The location of the flat steel involved therefore requires the design of a punched hole to facilitate the penetration of the bolt.
As shown in fig. 2, which is a side sectional view of a floor node of a reinforced wall, it can be seen that an angle steel 6 at the top is fixed with an upper floor 1 by a split bolt 7, and the other side of the angle steel 6 is fixed with a wall 8 by the split bolt 7. The angle steel 6, the telescopic flat steel strip 9, the horizontal fixed flat steel strip 11 and the vertical fixed flat steel strip 5 form a flat steel reinforcing layer 12. The flat steel reinforcement layer 12 may be provided on one or both sides of the wall body 8.
As shown in fig. 2, after the flat steel reinforcing layer 12 is completely fixed, the polymer mortar 3 is adopted to start plastering to form a plastering surface layer 2 with a total thickness of 30mm, the plastering adopts a layered plastering method, after the first plastering surface layer is initially set, the gap between the flat steel system and the wall body 8 is compacted by the polymer mortar 3, then a steel wire mesh is arranged on the first plastering surface layer, and then the plastering is continued until the proper thickness is reached. The setting of wire net can be better prevent that the surface course is too thick to lead to the surface fracture.
As shown in fig. 3, which is an enlarged schematic view of a joint between the horizontal fixed flat steel strip 11 and the vertical fixed flat steel strip 5 in fig. 1, it can be seen from fig. 1 and 3 that the horizontal fixed flat steel strip 11 and the vertical fixed flat steel strip 5 are connected in a segmented welding manner, so that the horizontal fixed flat steel strip 11 and the vertical fixed flat steel strip 5 are located on the same plane. In this embodiment, the horizontal flat steel strip 11 extends from the upper edge and the lower edge at the intersection with the vertical flat steel strip 5, and the upper edge and the lower edge are connected with the vertical flat steel strip 5 by welding, so that a welding seam 14 is formed. By the arrangement, the thickness of the flat steel belt at the intersection point can be reduced, so that the thickness of the reinforcing surface layer is reduced.
Fig. 4 is a schematic view illustrating the method of the present invention for reinforcing the junction of the vertical and horizontal walls. It can be seen that each wall can be reinforced according to the method of the present invention.
Fig. 5 is a view showing an expanded structure of the retractable flat steel strip 9 used in the embodiment of the present invention, fig. 6 is a view showing a retracted structure of the retractable flat steel strip 9 used in the embodiment of the present invention, and fig. 7 is a detailed view of a point a. It can be seen that at the intersection of the flat telescopic steel strips 9 there are bolt holes 10 through which the flat telescopic steel strips 9 are connected.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
Claims (10)
1. A method for reinforcing a wall structure by a telescopic flat steel system is characterized by comprising the following steps: the method comprises the following steps:
step 1: four corners of the wall body (8) are provided with angle steels (6);
step 2: mounting a telescopic flat steel belt (9), wherein the telescopic flat steel belt (9) is fixed through angle steels (6) at four corners of a wall body;
and step 3: set up fixed flat steel band of level (11) and vertical fixed flat steel band (5) on scalable flat steel band (9), fixed flat steel band of level (11) and vertical fixed flat steel band (5) all are connected fixedly with wall body (8), flat steel back up coat (12) are constituteed to angle steel (6), scalable flat steel band (9), fixed flat steel band of level (11) and vertical fixed flat steel band (5).
2. The method of claim 1, wherein: the angle steel (8) positioned at the bottom is deeply embedded into the ring beam or the foundation beam (4) through an anchor bolt (13); the angle steel (6) positioned at the top is fixed with the floor (1) at the upper part.
3. The method of claim 1, wherein: the telescopic flat steel strip (9), the horizontal fixed flat steel strip (11) and the vertical fixed flat steel strip (5) are fixedly connected with the wall body (8) through split bolts (7).
4. The method of claim 1, wherein: the horizontal fixed flat steel strip (11) penetrates through the intersection of the telescopic flat steel strip (9); the vertical fixed flat steel strip (5) penetrates through the intersection point of the telescopic flat steel strip (9).
5. The method of claim 1, wherein: the edges of the angle steel (6) at the two ends of the wall body (8) are separated from the two ends of the telescopic flat steel belt (9).
6. The method of claim 1, wherein: the horizontal fixed flat steel strip (11) and the vertical fixed flat steel strip (5) are connected in a segmented welding mode, so that the horizontal fixed flat steel strip (11) and the vertical fixed flat steel strip (5) are located on the same plane.
7. The method of claim 1, wherein: the surfaces of the telescopic flat steel strip (9), the horizontal fixed flat steel strip (11), the vertical fixed flat steel strip (5) and the angle steel (6) are coated with antirust paint.
8. The method of claim 1, wherein: the telescopic included angle of the telescopic flat steel strip (9) is 20-150 degrees.
9. The method of claim 1, wherein: when the telescopic flat steel strip (9) is fixed on the wall body (8), the telescopic included angle is 40-50 degrees.
10. The method of claim 1, wherein: and after the step 3 is completed, the polymer mortar (3) is used for plastering to form a plastering surface layer (2), the total thickness of the plastering surface layer (2) is 30mm, the plastering adopts a layered plastering method, after the first plastering surface layer is initially set, the gap between the flat steel reinforcing layer (12) and the wall body (8) is compacted by the polymer mortar (3), a steel wire mesh is arranged outside the first plastering surface layer, and then plastering is continued.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110997499.8A CN113833294B (en) | 2021-08-27 | 2021-08-27 | Method for reinforcing wall structure by telescopic flat steel system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110997499.8A CN113833294B (en) | 2021-08-27 | 2021-08-27 | Method for reinforcing wall structure by telescopic flat steel system |
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| CN113833294A true CN113833294A (en) | 2021-12-24 |
| CN113833294B CN113833294B (en) | 2022-12-27 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007109965A1 (en) * | 2006-03-24 | 2007-10-04 | Shuhuan Wu | A binding compound insulating exterior wall with a support |
| CN102767294A (en) * | 2012-07-30 | 2012-11-07 | 扬州大学 | Reinforcement method for improving seismic capacity of masonry structure by wall surface steel supports |
| CN206467824U (en) * | 2017-01-20 | 2017-09-05 | 武汉理工大学 | A kind of assembly concrete frame wall filled with masonry |
| CN211974453U (en) * | 2020-03-26 | 2020-11-20 | 广东中森建设工程有限公司 | Masonry brick wall steel plate belt reinforcing structure |
-
2021
- 2021-08-27 CN CN202110997499.8A patent/CN113833294B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007109965A1 (en) * | 2006-03-24 | 2007-10-04 | Shuhuan Wu | A binding compound insulating exterior wall with a support |
| CN102767294A (en) * | 2012-07-30 | 2012-11-07 | 扬州大学 | Reinforcement method for improving seismic capacity of masonry structure by wall surface steel supports |
| CN206467824U (en) * | 2017-01-20 | 2017-09-05 | 武汉理工大学 | A kind of assembly concrete frame wall filled with masonry |
| CN211974453U (en) * | 2020-03-26 | 2020-11-20 | 广东中森建设工程有限公司 | Masonry brick wall steel plate belt reinforcing structure |
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| CN113833294B (en) | 2022-12-27 |
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