Fair-faced concrete wall

Abstract

The invention provides a fair-faced concrete wall which comprises a steel bar frame, the steel bar frame at least comprises a first steel bar and a second steel bar which extend in the horizontal direction, one end of the first steel bar is connected with one end of a first beam support, and the other end of the first beam support is arranged in a frame column or a vertical beam. One end, close to the first beam support, of the second steel bar is bent towards the first steel bar and is not connected with the first beam support; the detachable fair-faced concrete surface layer covers the outer side of the steel bar frame, a containing space for containing fair-faced concrete is formed in the inner side of the fair-faced concrete surface layer, and the fair-faced concrete surface layer can be detached after construction is finished. One steel bar extending in the horizontal direction in the steel bar frame is normally connected with the beam support, one end of the other steel bar is bent and is not connected with the beam support, the fair-faced concrete architectural effect of the exterior facade can be achieved, the stress performance of a main body structure is not affected, and the construction cost is reduced. And due to flexible connection with the main body structure, enough deformation capability can be provided.

Description

Technical Field

[0001] The invention relates to the technical field of building engineering, in particular to a fair-faced concrete wall. Background Art

[0002] In the field of construction engineering, with the continuous advancement of technology and the growing development of materials science, aluminum formwork all-concrete exterior walls, as an efficient and environmentally friendly construction technology, are gradually occupying an important position in high-rise buildings, commercial complexes and residential projects. The aluminum formwork all-concrete exterior wall system has the advantages of fast construction speed, high precision, and high turnover of formwork, which significantly improves the efficiency and quality of construction. The fair-faced concrete wall is named from the perspective of architectural effect. In fact, it can be a reinforced concrete wall or a plain concrete wall. Fair-faced concrete (or fair-faced formwork) is a way of expressing architectural modernism. After the concrete is poured, there is no longer any coating, tile, stone or other materials. It is a way of expressing concrete in a plain face. Because of its extremely decorative effect, it is also called decorative concrete. The fair-faced concrete structure has unique strength, cleanliness, material sense and other outstanding aesthetic expressions.

[0003] The connection between the concrete wall and the main structure (such as columns, beams, etc.) is one of the important nodes in the building structure. If the connection is not firm or the design is unreasonable, it will lead to the instability of the entire building structure. Most of the existing walls of industrial and civil buildings use infill walls or shear walls. If the building function requires the use of plain concrete walls, but at the same time requires sufficient deformation capacity, the infill walls or shear walls in the existing technology cannot meet the engineering requirements.

[0004] Therefore, there is an urgent need for a fair-faced concrete wall that can achieve the architectural effect of fair-faced concrete on the facade without affecting the stress-bearing performance of the main structure. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a fair-faced concrete wall which can achieve the fair-faced concrete architectural effect of the facade without affecting the stress-bearing performance of the main structure and can provide sufficient deformation capacity.

[0006] To achieve the above-mentioned purpose, an embodiment of the present invention provides a fair-faced concrete wall, comprising: a steel bar frame, comprising at least a first steel bar and a second steel bar extending in a horizontal direction, one end of the first steel bar is connected to one end of a first beam support, the other end of the first beam support is arranged in a frame column or a vertical beam, and one end of the second steel bar close to the first beam support is bent toward the first steel bar and is not connected to the first beam support; a detachable fair-faced concrete surface layer, the fair-faced concrete surface layer is coated on the outer side of the steel bar frame, the inner side of the fair-faced concrete surface layer forms a containing space for containing fair-faced concrete, and the fair-faced concrete surface layer can be removed after the construction is completed.

[0007] In some embodiments, the steel bar frame also includes a third steel bar and a fourth steel bar extending in a vertical direction; both ends of the third steel bar are respectively connected to one end of a second beam support, and the other end of the second beam support is arranged in the floor slab and the crossbeam; the first end of the fourth steel bar is connected to one end of the second beam support, and the second end of the fourth steel bar is bent toward the third steel bar and is not connected to the second beam support.

[0008] The above technical solution, by setting one of the steel bars extending in the horizontal direction in the steel frame to be normally connected to the beam support, and one end of the other steel bar is bent and not connected to the beam support, can achieve the architectural effect of the exposed concrete on the facade without affecting the stress performance of the main structure, and can provide sufficient deformation capacity due to the flexible connection with the main structure. Further setting one of the steel bars extending in the vertical direction in the steel frame to be normally connected to the beam support, and one end of the other steel bar is bent and not connected to the beam support, can further provide deformation capacity. And because one steel bar is not connected to the beam support, the corresponding exposed concrete wall is a non-load-bearing wall, which is convenient for demolition when needed without affecting the overall stability of the building structure. From the perspective of architectural effect, it has the appearance of an exposed concrete wall without affecting the stress performance of the main structure. While ensuring the architectural effect of the exposed concrete on the facade, the joints of the facade can resist cracking while ensuring the deformation capacity when bearing a large horizontal load. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0010] Figure 1 A horizontal cross-sectional schematic diagram of a fair-faced concrete wall provided by an embodiment of the present invention;

[0011] Figure 2 A vertical cross-sectional schematic diagram of a fair-faced concrete wall provided by an embodiment of the present invention;

[0012] Figure 3 for Figure 2 Enlarged schematic diagram of part A. DETAILED DESCRIPTION

[0013] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0014] Please also read Figure 1 to Figure 3 ,in, Figure 1 A horizontal cross-sectional schematic diagram of a fair-faced concrete wall provided by an embodiment of the present invention; Figure 2 A vertical cross-sectional schematic diagram of a fair-faced concrete wall provided by an embodiment of the present invention; Figure 3 for Figure 2 Enlarged schematic diagram of part A.

[0015] like Figure 1 As shown, the fair-faced concrete wall described in this embodiment includes: a steel frame and a detachable fair-faced concrete surface layer.

[0016] The steel bar frame at least includes a first steel bar 111 and a second steel bar 112 extending in a horizontal direction (in the direction D1 shown in the figure). One end of the first steel bar 111 is connected to one end of the first beam support 191, and the other end of the first beam support 191 is arranged in the frame column 181. The end of the second steel bar 112 close to the first beam support 191 is bent toward the first steel bar 111 and is not connected to the first beam support 191. In other embodiments, the other end of the first beam support 191 can also be arranged in the vertical beam. The beam support is also known as a corbel, which is a support located under the beam in a mixed structure. Its function is to disperse the force of the beam support and transfer it to the load-bearing object below to avoid the concentrated force on one side from crushing the wall. According to the load direction, if the component is horizontally loaded, it may be a horizontal beam; if it is vertically loaded, it may be a vertical beam. A horizontal beam usually refers to a beam that spans a room or a building structure, which plays a role in supporting the roof or floor. The main task of the vertical beam is to bear the vertical weight from the upper structure. In multi-story or high-rise buildings, vertical beams serve as the main load-bearing components between floors, carrying the weight of the upper floors and various live loads (such as people) on the floors.

[0017] The detachable plain concrete surface layer is coated on the outer side of the steel frame, and the inner side of the plain concrete surface layer forms a containing space 120 for containing plain concrete. The plain concrete surface layer can be removed after the construction is completed.

[0018] It should be noted that the first steel bars 111 may be multiple steel bars extending in the horizontal direction and arranged in the vertical direction, and the second steel bars 112 may be multiple steel bars extending in the horizontal direction and arranged in the vertical direction. In the steel bar frame provided in the plain concrete surface layer, the specification and quantity of the steel bars extending in the horizontal direction may be determined according to the strength required for the plain concrete wall.

[0019] Specifically, the first steel bar 111 is connected to the first beam support 191 by welding. In other embodiments, the first steel bar 111 and the first beam support 191 may also be connected by tying steel bars or other connection methods.

[0020] The connection between the exposed concrete wall and the main structure (such as columns, beams, etc.) is one of the important nodes in the building structure. In this embodiment, one of the steel bars extending in the horizontal direction in the steel bar frame is normally connected to the beam support, and one end of the other steel bar is bent and not connected to the beam support. This can achieve the exposed concrete architectural effect of the facade without affecting the stress performance of the main structure, and can provide sufficient deformation capacity due to the flexible connection with the main structure. And because one steel bar is not connected to the beam support, the corresponding exposed concrete wall is non-load-bearing and non-load-bearing, which is convenient for demolition when needed without affecting the overall stability of the building structure. From the perspective of architectural effect, it has the appearance of an exposed concrete wall without affecting the stress performance of the main structure. While ensuring the exposed concrete architectural effect of the facade, the joints of the facade can resist cracking while ensuring the deformation capacity when bearing a large horizontal load.

[0021] Specifically, the role of one end of the steel bar being bent and not connected to the beam support in this embodiment is mainly reflected in the following aspects: 1. Absorbing deformation: Due to the thermal expansion and contraction of the exposed concrete wall, and the deformation of the structure caused by various loads during use, the structure provided by this embodiment can absorb these deformations and prevent cracks caused by deformation differences. 2. Relieve stress concentration: At the structural connection, stress concentration often occurs due to changes in geometry and stress state. The structure provided by this embodiment can disperse and relieve these stress concentrations and reduce the destructive effect on the materials at the connection. 3. Facilitate construction and maintenance: The structure provided by this embodiment makes the corresponding exposed concrete wall a non-load-bearing wall, which is convenient for installation and adjustment during construction, as well as inspection and replacement during later maintenance. The exposed concrete wall provided by this embodiment can be used as a variety of building structures such as exterior walls, interior walls, partition walls, balconies, etc.

[0022] like Figure 2-3As shown, the steel bar frame described in this embodiment also includes a third steel bar 113 and a fourth steel bar 114 extending in the vertical direction (in the figure, direction D2). The two ends of the third steel bar 113 are respectively connected to one end of a second beam support 192, and the other end of the second beam support 192 is arranged in the floor 182 and the cross beam 183. The first end of the fourth steel bar 114 is connected to one end of the second beam support 192, and the second end of the fourth steel bar 114 is bent toward the third steel bar 113 and is not connected to the second beam support 192. In this embodiment, by further arranging that one of the steel bars extending in the vertical direction in the steel bar frame is normally connected to the beam support, and one end of the other steel bar is bent and not connected to the beam support, the architectural effect of the exposed concrete on the facade can be achieved without affecting the stress performance of the main structure, and the flexible connection with the main structure can provide sufficient deformation capacity. And because one steel bar is not connected to the beam support, the corresponding exposed concrete wall is non-load-bearing and is a non-load-bearing wall, which is convenient for demolition when needed without affecting the stability of the overall building structure.

[0023] It should be noted that the third steel bars 113 may be a plurality of steel bars extending in the vertical direction and arranged in the horizontal direction, and the fourth steel bars 114 may be a plurality of steel bars extending in the vertical direction and arranged in the horizontal direction. In the steel bar frame provided in the fair-faced concrete surface layer, the specification and quantity of the steel bars extending in the vertical direction may be determined according to the strength required for the fair-faced concrete wall.

[0024] Specifically, in this embodiment, the second end of the fourth steel bar 114 is an end close to the floor slab 182 serving as the floor, so as to better provide sufficient deformation capacity without affecting the stress-bearing performance of the main structure.

[0025] Specifically, the third steel bar 113 is connected to the second beam support 192 by welding, and the first end of the fourth steel bar 114 is connected to the corresponding second beam support 192 by welding. In other embodiments, the third steel bar 113 and the second beam support 192 may also be connected by tying steel bars, etc.; the first end of the fourth steel bar 114 and the corresponding second beam support 192 may also be connected by tying steel bars, etc.

[0026] like Figure 1 to Figure 3 As shown, the plain concrete surface layer described in this embodiment includes an outer wall template 121 and an inner wall template 122, and the outer wall template 121 and the inner wall template 122 are arranged in pairs to form a containing space 120 for containing plain concrete, and the plain concrete surface layer can be removed after the construction is completed. Specifically, the main parts of the outer wall template 121 and the inner wall template 122 are parallel to each other, have the same structural shape, and have the same size and specifications.

[0027] like Figure 1 As shown, in this embodiment, the first steel bar 111 is located near the side of the outer wall formwork 121, the second steel bar 112 is located near the side of the inner wall formwork 122, and one end of the inner wall formwork 122 near the first beam support 191 is bent toward the outer wall formwork 121. Therefore, near the first beam support 191, the inner wall formwork 122 and the second steel bar 112 both have a bent portion, and the shapes of the two are adapted.

[0028] like Figure 2-3 As shown, in this embodiment, the third steel bar 113 is located near the outer wall formwork 121, the fourth steel bar 114 is located near the inner wall formwork 122, and one end of the inner wall formwork 122 near the second beam support 192 is bent toward the outer wall formwork 121. Thus, near the second beam support 192, both the inner wall formwork 122 and the fourth steel bar 114 have a bent portion, and the shapes of the two are adapted.

[0029] In some embodiments, the inner side surfaces of the exterior wall formwork 121 and the interior wall formwork 122 that are in contact with the plain concrete are smooth panels to facilitate accommodating the plain concrete and to facilitate removal of the plain concrete surface layer after construction.

[0030] According to the above content, it can be seen that the exposed concrete wall provided in this embodiment can realize the exposed concrete architectural effect of the facade without affecting the stress performance of the main structure by setting one of the steel bars extending in the horizontal direction in the steel frame to be normally connected to the beam support, and one end of the other steel bar is bent and not connected to the beam support, and can provide sufficient deformation capacity due to the flexible connection with the main structure. Further, one of the steel bars extending in the vertical direction in the steel frame is normally connected to the beam support, and one end of the other steel bar is bent and not connected to the beam support, which can further provide deformation capacity. And because one steel bar is not connected to the beam support, the corresponding exposed concrete wall is a non-load-bearing wall, which is convenient for demolition when needed without affecting the stability of the overall building structure. From the perspective of architectural effect, it has the appearance of an exposed concrete wall without affecting the stress performance of the main structure. While ensuring the exposed concrete architectural effect of the facade, the joints of the facade can resist cracking while ensuring the deformation capacity when bearing a large horizontal load.

[0031] It should be noted that the terms "including" and "having" and their variations involved in the present invention document are intended to cover non-exclusive inclusions. The terms "first", "second", etc. are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. Unless the context clearly indicates otherwise, it should be understood that the data used in this way can be interchanged under appropriate circumstances. In addition, the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict. In addition, in the following description, the description of known structures and technologies is omitted to avoid unnecessary confusion of the concepts of the present invention.

[0032] The above description is only a specific implementation of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A fair-faced concrete wall, characterized in that: include: A steel bar frame, comprising at least a first steel bar and a second steel bar extending in a horizontal direction, wherein one end of the first steel bar is connected to one end of a first beam support, the other end of the first beam support is arranged in a frame column or a vertical beam, and one end of the second steel bar close to the first beam support is bent toward the first steel bar and is not connected to the first beam support; A detachable plain concrete surface layer is coated on the outer side of the steel frame, and an accommodating space for accommodating the plain concrete is formed on the inner side of the plain concrete surface layer. The plain concrete surface layer can be removed after the construction is completed.

2. The fair-faced concrete wall according to claim 1, characterized in that: The steel bar frame further comprises a third steel bar and a fourth steel bar extending in a vertical direction; Two ends of the third steel bar are respectively connected to one end of a second beam support, and the other end of the second beam support is arranged in the floor slab and the cross beam; The first end of the fourth steel bar is connected to one end of the second beam bracket, and the second end of the fourth steel bar is bent toward the third steel bar and is not connected to the second beam bracket.

3. The fair-faced concrete wall according to claim 2, characterized in that: The second end of the fourth steel bar is an end close to the floor slab serving as the floor.

4. The fair-faced concrete wall according to claim 2, characterized in that: The first steel bar is connected to the first beam support by welding; The third steel bar is connected to the second beam support by welding, and the first end of the fourth steel bar is connected to the corresponding second beam support by welding.

5. The fair-faced concrete wall according to claim 2, characterized in that: The plain concrete surface layer comprises an exterior wall formwork and an interior wall formwork, and the exterior wall formwork and the interior wall formwork are arranged in pairs.

6. The fair-faced concrete wall according to claim 5, characterized in that: The first steel bar is located close to the outer wall formwork, the second steel bar is located close to the inner wall formwork, and one end of the inner wall formwork close to the first beam support is bent toward the outer wall formwork.

7. The fair faced concrete wall according to claim 5 or 6, characterized in that: The third steel bar is located close to the outer wall formwork, the fourth steel bar is located close to the inner wall formwork, and one end of the inner wall formwork close to the second beam support is bent toward the outer wall formwork.

8. The fair faced concrete wall according to claim 5, characterized in that: The inner side surfaces of the outer wall formwork and the inner wall formwork that are in contact with the fair-faced concrete are smooth panels.

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