A coat frame

Abstract

This utility model belongs to the field of building reinforcement technology, and in particular to an outer frame, including the original building, a bearing foundation set on the outside of the original building, corner columns installed at the top of the bearing foundation, the corner columns set at the corners of the original building, concrete keys set on the side of the corner columns facing the original building, the concrete keys set inside the original building, and wall-mounted columns set on both sides of the corner columns; through the cooperation of the corner columns, wall-mounted columns and frame beams, a spatial frame system tightly wrapping the original building is formed, and through wall reinforcement and anchor reinforcement are used to effectively transfer forces between the old and new structures, and the horizontal forces and vertical loads originally dispersed in the original building are continuously transferred to the new frame through the connection nodes, and then guided into the bearing foundation by the new frame columns, thereby improving the overall structure, seismic performance and load-bearing capacity.

Description

Technical Field

[0001] This utility model belongs to the field of building reinforcement technology, specifically relating to an outer frame. Background Technology

[0002] In building renovation projects, external frames are often used to reinforce or add floors to existing buildings. However, the existing outer frame structures are relatively simple, and their connection with the original building is mostly concentrated at local nodes or on the surface. They can often only provide lateral constraints or share part of the vertical load, failing to form an efficient and collaborative whole with the old structure. This results in unclear force transmission paths between the old and new structures, making it impossible to effectively transfer horizontal forces such as wind loads and seismic forces, as well as new loads, to the foundation through the new frame. Consequently, the original structure still has to bear most of the force independently, and the reinforcement effect is limited. Utility Model Content

[0003] To address the above problems, the purpose of this utility model is to provide an outer frame that solves the problem that the force borne by the old structure is difficult to transfer to the new structure, resulting in a low reinforcement effect.

[0004] To achieve the above objectives, an outer frame includes an original building structure, a load-bearing foundation on the outer side of the original building structure, corner columns installed at the top of the load-bearing foundation, the corner columns being located at the corners of the original building structure, concrete keys being provided on the side of the corner columns facing the original building structure, the concrete keys being located inside the original building structure, wall-mounted columns being provided on both sides of the corner columns, and a plurality of evenly distributed frame beams being provided on the inner side of the wall-mounted columns.

[0005] Preferably, a plurality of evenly distributed piles are installed at the bottom of the bearing foundation.

[0006] Preferably, the original building has several pre-drilled holes and a matching groove, the size and shape of which correspond to the concrete key.

[0007] Preferably, the corner column is equipped with a number of evenly arranged through-wall reinforcing bars, one end of which is installed inside the original building.

[0008] Preferably, an installation slot is provided on the inner side of the wall-mounted column, and the frame beam is installed on the inner side of the wall-mounted column through the installation slot.

[0009] Preferably, both the corner column and the frame beam are provided with a number of anchoring steel bars on the side facing the original building. The anchoring steel bars are installed inside the original building through the pre-drilled holes, and the diameter of the pre-drilled holes is larger than the outer diameter of the anchoring steel bars.

[0010] Preferably, connecting end plates are installed at the intersections of the frame beam with the wall-mounted column and the corner column.

[0011] The utility model has the following beneficial effects: By combining corner columns, wall-mounted columns, and frame beams, a spatial frame system is formed that tightly encloses the original building. Through-wall reinforcement and anchor reinforcement are used to effectively transfer forces between the old and new structures. The horizontal forces and vertical loads that were originally dispersed in the original building are continuously transferred to the new frame through the connection nodes, and then introduced into the bearing foundation by the new frame columns, thereby improving the overall integrity, seismic performance and load-bearing capacity of the structure. Attached Figure Description

[0012] Figure 1 This is a schematic diagram showing the state of the present invention in use; Figure 2 This is a schematic diagram of the corner-enclosing column in this utility model; Figure 3 This is a schematic diagram of the original building structure in this utility model; Figure 4 This is a structural diagram of the wall-mounted columns and frame beams in this utility information.

[0013] In the diagram: 1. Original building structure; 11. Pre-drilled hole; 12. Adaptive groove; 2. Bearing foundation; 21. Pile piles; 3. Corner column; 31. Concrete key; 32. Through-wall reinforcement; 4. Column attached to the wall; 41. Installation slot; 5. Frame beam; 6. Anchor reinforcement; 7. Connecting end plate. Detailed Implementation

[0014] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of the present invention in any way.

[0015] Example: Figure 1 As shown in Figure 4: An outer frame includes an original building 1, a bearing foundation 2 on the outside of the original building 1, a corner column 3 installed at the top of the bearing foundation 2, the corner column 3 being located at the corner of the original building 1, a concrete key 31 being provided on the side of the corner column 3 facing the original building 1, the concrete key 31 being located inside the original building 1, and wall-mounted columns 4 being provided on both sides of the corner column 3, with a number of evenly distributed frame beams 5 being provided on the inner side of the wall-mounted columns 4.

[0016] The load-bearing foundation 2 set on the outside of the original building 1 provides stable support for components such as the corner columns 3, allowing the corner columns 3 and other components to transfer the force they bear to the load-bearing foundation 2, which then evenly distributes it to the ground. The corner columns 3 set on the outside of the original building 1 are reinforced concrete components. The corner columns 3 can enclose the corner part of the original building 1, thereby utilizing the rigidity and load-bearing capacity of the corner columns 3 to form a strong enclosure and constraint for the fragile corner of the original building 1. Furthermore, the corner columns 3 and the original building 1 are connected by... A rigid connection is used to effectively transfer shear force between the corner column 3 and the original building 1. A concrete key 31 on one side of the corner column 3 is inserted into the original building 1. When relative misalignment occurs between the original building 1 and the corner column 3, the side of the concrete key 31 directly abuts against the original building 1, resisting and transferring shear force through its compressive strength, thus reinforcing the original building 1. Furthermore, the concrete key 31 increases the contact area between the corner column 3 and the original building 1, thereby increasing the strength of the corner column 3 and the original building 1. The effective load-bearing area between the original building sections 1 allows the stress on the original building section 1 to be effectively transferred to the corner columns 3. Wall-mounted columns 4 are installed on both sides of the corner columns 3. Together, the wall-mounted columns 4 and the corner columns 3 form a vertical load-bearing system distributed on the outside of the original building section 1, thereby expanding the support range for the original building section 1 and making the load transfer path more diversified, avoiding excessive stress concentration. Several frame beams 5 are arranged on the inner side of the wall-mounted columns 4 at the height of each floor slab. The frame beams 5 are connected to the original building section 1 using... With rigid connections, the frame beam 5 can reliably connect the horizontal nodes of the corner column 3 and the wall column 4, so that the originally scattered corner column 3 and wall column 4 are connected into a spatial frame system, thereby supporting and reinforcing the original building 1. The horizontal wind or seismic loads that the original building 1 was originally borne independently are effectively collected and transferred to the entire outer frame, and finally transferred to the bearing foundation 2 by the corner column 3 and the wall column 4. This greatly reduces the burden on the original structure and improves the overall lateral stiffness and seismic performance of the building.

[0017] Several evenly distributed piles 21 are installed at the bottom of the bearing foundation 2. The piles 21 installed at the bottom of the bearing foundation 2 are used to directly transfer the load on the bearing foundation 2 to the deep, stable rock layer or bearing soil layer with higher bearing capacity, so as to avoid the shallow soil around the original building from settling due to insufficient bearing capacity and high compressibility.

[0018] The original building 1 has several pre-drilled holes 11 and a matching groove 12 inside. The size and shape of the matching groove 12 correspond to the concrete key 31. The matching groove 12 inside the original building 1 corresponds to the size and shape of the concrete key 31, so that the concrete key 31 can be inserted into the original building 1 through the matching groove 12, thereby increasing the contact area between the original building 1 and the corner column 3, increasing the effective force transmission area between the original building 1 and the corner column 3, so that the load force borne by the original building 1 can be transferred to the corner column 3, thereby playing a role in reinforcing the original building 1.

[0019] The corner column 3 has several evenly distributed through-wall steel bars 32 installed inside it. One end of each through-wall steel bar 32 is installed inside the original building 1. The through-wall steel bars 32 are used to tie the original building 1 and the corner column 3 together, preventing separation between them. This allows the stress at the corner of the original building 1 to be effectively and continuously transferred to the corner column 3, thereby enhancing the overall structure and the torsional resistance of the original building 1.

[0020] The inner side of the wall-mounted column 4 is provided with an installation slot 41, through which the frame beam 5 is installed on the inner side of the wall-mounted column 4. The installation slot 41 provided on the inner side of the wall-mounted column 4 provides space for the installation of the frame beam 5, thereby allowing the wall-mounted column 4 to provide a support platform for the frame beam 5 and increasing the contact area between the wall-mounted column 4 and the frame beam 5. When the frame beam 5 bears the horizontal force transmitted by the original building 1, it can transfer the force to the wall-mounted column 4, and finally the wall-mounted column 4 to the bearing foundation 2, so as to achieve the effect of reinforcing the original building 1.

[0021] Several anchoring steel bars 6 are provided on the side of the corner column 3 and frame beam 5 facing the original building 1. The anchoring steel bars 6 are installed inside the original building 1 through pre-drilled holes 11, and the diameter of the pre-drilled holes 11 is larger than the outer diameter of the anchoring steel bars 6. The anchoring steel bars 6 provided on the side of the corner column 3 and frame beam 5 facing the original building 1 are used to rigidly connect the corner column 3 and frame beam 5 to the original building 1. The original building 1 has pre-drilled holes 11 for installing the anchoring steel bars 6. The diameter of the pre-drilled holes 11 is larger than the outer diameter of the anchoring steel bars 6. During installation, the workers can first place the anchoring agent inside the pre-drilled holes 11, and then install one end of the anchoring steel bar 6 into the pre-drilled holes 11. This allows the anchoring steel bars 6 to effectively rigidly connect the corner column 3 and frame beam 5 to the original building 1, so that the force borne by the original building 1 can be effectively transmitted to the corner column 3 and frame beam 5, thereby strengthening the original building 1.

[0022] Connecting end plates 7 are installed at the intersections of frame beam 5 with wall-mounted column 4 and corner column 3. The connecting end plates 7 are bolted to connect frame beam 5 with corner column 3 and wall-mounted column 4, making them a whole. This allows the bending moment, shear force and axial force between frame beam 5 and corner column 3 and wall-mounted column 4 to be effectively and reliably transmitted, ensuring the integrity and smoothness of the force transmission path, and enabling the entire outer frame to work together and share the load.

[0023] The working principle of this utility model is as follows: After the workers have installed all the components, the corner column 3 is rigidly connected to the original building 1 through concrete keys 31, through-wall steel bars 32, and anchoring steel bars 6, thus directly bearing a portion of the original structure's vertical load. The portion of the vertical load borne by the original building 1 is transferred to the frame beam 5 through the anchoring steel bars 6. The frame beam 5, as a horizontal force-transmitting component, transfers the collected load to the corner column 3 and the wall-mounted column 4, so that the load ultimately converges at the corner column 3 and the wall-mounted column 4. The corner column 3 and the wall-mounted column 4, as the main vertical bearing components, transfer the load downwards to their bottom bearing foundation 2. The bearing foundation 2 then distributes the load to the deep piles 21, which ultimately transfer the force to the deep, hard, and stable bearing layer, thus safely and efficiently completing the vertical load. Throughout the entire process of transmission, when wind load or seismic force acts on the building, the horizontal force is first borne by the original building 1. The original building 1 is rigidly connected to the frame beam 5 through the anchor steel bars 6, so that the original building 1 will transfer the horizontal force to the frame beam 5. The frame beam 5, as the chord of the horizontal truss, will transfer the horizontal force in its own plane to the node area of ​​the corner column 3 and the wall column 4 that are rigidly connected to it. The corner column 3 and the wall column 4, as the vertical members of the frame, mainly rely on their own bending stiffness to resist the bending moment caused by the horizontal force. The bending moment and horizontal shear force at the bottom of the corner column 3 and the wall column 4 are borne by the bearing foundation 2 and the piles 21. The piles 21 rely on their deep-buried characteristics to balance these forces by using their own bending resistance and the elastic resistance of the soil on the side of the piles, preventing the structure from overturning or sliding, thereby improving the seismic resistance and integrity of the original structure.

[0024] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0025] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or changes can be made without departing from the principles of the present invention, and the above technical features can also be combined in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. An outer frame, comprising the original building structure (1), characterized in that: The original building (1) is provided with a bearing foundation (2) on the outside. A corner column (3) is installed at the top of the bearing foundation (2). The corner column (3) is located at the corner of the original building (1). A concrete key (31) is provided on the side of the corner column (3) facing the original building (1). The concrete key (31) is located inside the original building (1). Wall-mounted columns (4) are provided on both sides of the corner column (3). Several evenly distributed frame beams (5) are provided on the inner side of the wall-mounted columns (4).

2. The outer frame according to claim 1, characterized in that: The bottom of the bearing foundation (2) is equipped with several evenly distributed piles (21).

3. The outer frame according to claim 1, characterized in that: The original building (1) has several pre-drilled holes (11) inside, and the original building (1) has a matching groove (12) inside. The size and shape of the matching groove (12) correspond to the concrete key (31).

4. The outer frame according to claim 1, characterized in that: The corner column (3) is equipped with several uniformly arranged through-wall steel bars (32), one end of which is installed inside the original building (1).

5. A jacket frame according to claim 2, characterized in that: The inner side of the wall-mounted column (4) is provided with an installation slot (41), and the frame beam (5) is installed on the inner side of the wall-mounted column (4) through the installation slot (41).

6. The outer frame according to claim 3, characterized in that: The corner column (3) and the frame beam (5) are each provided with a number of anchoring steel bars (6) on the side facing the original building (1). The anchoring steel bars (6) are installed inside the original building (1) through the pre-drilled hole (11), and the diameter of the pre-drilled hole (11) is larger than the outer diameter of the anchoring steel bars (6).

7. The outer frame according to claim 1, characterized in that: Connecting end plates (7) are installed at the intersections of the frame beam (5) with the wall-mounted column (4) and the corner column (3).

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