Construction system capable of keeping original shape of outer wall
By using a construction system that retains the original form of exterior walls in building demolition and reinforcement projects, the exterior walls of the building are reinforced, which solves the problems of exterior wall retention and repair in the existing technology, ensures the stability of the building structure and construction safety, and reduces maintenance costs.
Patent Information
- Application Number
- CN202422042417.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-22
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-08-22
AI Technical Summary
In building demolition and reinforcement projects, it is difficult for the existing technology to effectively retain and repair exterior walls with historical artistic value, resulting in unstable building structures and even the risk of collapse.
A construction system that retains the original shape of the exterior wall, including foundation reinforcement structure, frame beam masonry reinforcement structure, frame column masonry reinforcement structure, structural column masonry reinforcement structure and steel beam original structural reinforcement structure. Through these structures, the building exterior wall is reinforced to ensure structural stability and safety.
By reinforcing the exterior walls of the building, the overall structural stability of the building is maintained, the adverse impact of demolition of the internal structure on the overall structure is reduced, the safety during the construction process is ensured, and the costs of subsequent repair and maintenance are reduced.
Smart Images
Figure CN222991208U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of construction engineering, and particularly relates to a construction system for retaining the original state of an exterior wall. Background Technique
[0002] With the advancement of the urban renewal and transformation process, a large number of existing building demolition and reinforcement projects have emerged. For projects in historical and cultural protection areas, how to preserve the valuable parts of the building and continue the original historical features of the building environment under the requirements of its structural and functional updates. When the internal structure is completely demolished, the exterior wall with historical and artistic value is retained to keep the original style of the street facade unchanged. How to adopt targeted technical measures to preserve and repair the building exterior wall under the requirement of replacing and transforming the internal structure.
[0003] In the existing solutions, mostly all the structures inside the exterior wall are demolished and then new structures are built. After demolishing the structures inside the exterior wall, the overall structure of the building may be affected. Especially if there are no appropriate support and reinforcement measures, it may lead to the instability of the building structure and even the risk of collapse. To solve the above problems, a construction system for retaining the original state of the exterior wall is proposed. Content of the Utility Model
[0004] To solve the above technical problems, a construction system for retaining the original state of the exterior wall is provided, which solves the problem that in the current existing solutions, mostly all the structures inside the exterior wall are demolished and then new structures are built. After demolishing the structures inside the exterior wall, the overall structure of the building may be affected. Especially if there are no appropriate support and reinforcement measures, it may lead to the instability of the building structure and even the risk of collapse.
[0005] To achieve the above purposes, the technical solution adopted by the utility model is: a construction system for retaining the original state of the exterior wall, including a foundation reinforcement structure, the foundation reinforcement structure further includes a bearing stratum, a original foundation is fixedly connected to the middle of the upper part of the bearing stratum, a original wall is fixedly connected above the original foundation, and a new foundation is arranged above the bearing stratum and outside the original foundation and the original wall;
[0006] A frame beam masonry reinforcement structure, the frame beam masonry reinforcement structure further includes a first original masonry, beam steel bars are arranged inside the first original masonry, a tie bar is fixedly connected to the left side of the beam steel bars, a frame beam is cast outside the tie bar, and the frame beam is fixedly connected to the first original masonry;
[0007] A frame column masonry reinforcement structure, the frame column masonry reinforcement structure further includes a second original masonry, and a rectangular column is arranged in the middle of the outside of the second original masonry;
[0008] Reinforcement structure for construction columns and masonry, the reinforcement structure for construction columns and masonry further includes a third original masonry, a toothing is provided on the upper side of the third original masonry, and a construction column is cast on one side of the third original masonry close to the toothing;
[0009] Reinforcement structure for the original steel beam structure, the reinforcement structure for the original steel beam structure includes an original structural slab, and a steel beam is provided on one side of the original structural slab.
[0010] Preferably, a second connecting short bar penetrates through the upper end of the original foundation, a first connecting short bar penetrates through the lower end of the original wall and the inside of the new foundation, and foundation steel bars are arranged inside the new foundation.
[0011] Preferably, column bars are provided on the right side of the first connecting short bar and the second connecting short bar. The column bars are fixedly connected to the foundation steel bars, the first connecting short bar and the second connecting short bar by mechanical means, and the upper end of the column bars extends to the outside of the new foundation and is fixedly connected to a column foundation.
[0012] Preferably, two first anchor bars are fixedly connected inside the second original masonry by anchor bolts, a first stirrup is arranged inside the rectangular column, and the first stirrup is fixedly connected to the first anchor bar by mechanical means.
[0013] Preferably, a second anchor bar is fixedly connected to one side of the third original masonry close to the toothing by an anchor bolt, a second stirrup is arranged inside the construction column, and the second stirrup is fixedly connected to the second anchor bar by mechanical means.
[0014] Preferably, a steel plate is provided on the side of the original structural slab away from the steel beam, and the steel plate is fixedly connected to the steel beam by a tie bolt.
[0015] Compared with the prior art, the advantages of the present utility model are as follows: The present utility model reinforces the original structure of the building exterior wall by setting a foundation reinforcement structure, a frame beam masonry reinforcement structure, a frame column masonry reinforcement structure, a construction column masonry reinforcement structure and a reinforcement structure for the original steel beam structure. By reinforcing the existing structure of the exterior wall, the overall structural stability of the building can be maintained, the adverse impact of demolishing the internal structure on the overall structure can be reduced, the safety during the construction process can be ensured, the safety of construction personnel and the surrounding environment can be guaranteed, and the damage to the original building during the demolition process can be reduced, and the cost of subsequent repair and maintenance can be lowered. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic structural diagram of the foundation reinforcement structure in the present utility model;
[0017] Figure 2 It is a schematic structural diagram of the frame beam masonry reinforcement structure in the present utility model;
[0018] Figure 3Schematic diagram of the frame column masonry reinforcement structure in the present utility model;
[0019] Figure 4 Schematic diagram of the construction column masonry reinforcement structure in the present utility model;
[0020] Figure 5 Schematic diagram of the steel beam original structure reinforcement structure in the present utility model.
[0021] The reference numerals in the figure are:
[0022] 1. Foundation reinforcement structure; 101. Bearing layer; 102. Original foundation; 103. First connecting short bar; 104. Second connecting short bar; 105. Column reinforcement; 106. Column foundation; 107. Foundation steel bar; 108. Newly added foundation; 109. Original wall; 2. Frame beam masonry reinforcement structure; 201. First original masonry; 202. Beam steel bar; 203. Tie bar; 204. Frame beam; 3. Frame column masonry reinforcement structure; 301. Second original masonry; 302. First anchor bar; 303. First stirrup; 304. Rectangular column; 4. Construction column masonry reinforcement structure; 401. Third original masonry; 402. Tooth-like joint; 403. Second anchor bar; 404. Second stirrup; 405. Construction column; 5. Steel beam original structure reinforcement structure; 501. Original structural slab; 502. Steel plate; 503. Steel beam; 504. Tie bolt. Detailed implementation manners
[0023] The following description is used to disclose the present utility model so that those skilled in the art can implement the present utility model. The preferred embodiments in the following description are only examples, and those skilled in the art can think of other obvious variations.
[0024] Embodiment 1
[0025] Referring to Figures 1-5 As shown, a construction system with the outer wall remaining in its original state includes a foundation reinforcement structure 1. The foundation reinforcement structure 1 further includes a bearing layer 101. In the middle above the bearing layer 101, an original foundation 102 is fixedly connected. Above the original foundation 102, an original wall 109 is fixedly connected. A newly added foundation 108 is arranged above the bearing layer 101 and on the outer sides of the original foundation 102 and the original wall 109. The bearing layer 101 serves as the load-bearing layer of the foundation, providing stable support and ensuring the stability of the entire structure;
[0026] Specifically, for the frame beam masonry reinforcement structure 2, the frame beam masonry reinforcement structure 2 further includes a first original masonry 201. Inside the first original masonry 201, there is a beam steel bar 202. On the left side of the beam steel bar 202, a tie bar 203 is fixedly connected. Outside the tie bar 203, a frame beam 204 is cast, and the frame beam 204 is fixedly connected to the first original masonry 201. This increases the strength and stability of the frame beam, improves its load-bearing capacity and seismic performance. The fixed connection with the first original masonry 201 enhances the connection between the new and old structures and improves the integrity of the structure.
[0027] Specifically, for the frame column masonry reinforcement structure 3, the frame column masonry reinforcement structure 3 further includes a second original masonry 301. In the middle of the outer side of the second original masonry 301, there is a rectangular column 304.
[0028] Specifically, for the construction column masonry reinforcement structure 4, the construction column masonry reinforcement structure 4 further includes a third original masonry 401. On the upper side of the third original masonry 401, there is a toothing 402. On the side of the third original masonry 401 close to the toothing 402, a construction column 405 is cast. The fixed connection of the construction column 405 with the third original masonry 401 and the toothing 402 enhances the stability and load-bearing capacity of the construction column 405, and at the same time improves the seismic performance of the structure.
[0029] Specifically, for the steel beam original structure reinforcement structure 5, the steel beam original structure reinforcement structure 5 includes an original structural slab 501, and on one side of the original structural slab 501, there is a steel beam 503.
[0030] Specifically, a second connecting short bar 104 penetrates through the upper end of the original foundation 102, and a first connecting short bar 103 penetrates through the lower end of the original wall 109 and the inside of the new foundation 108. Inside the new foundation 108, there is a foundation steel bar 107. The original structural part is retained, reducing the demolition workload during construction, and at the same time maintaining the original style of the building.
[0031] Specifically, on the right side of the first connecting short bar 103 and the second connecting short bar 104, there is a column steel bar 105. The column steel bar 105 is fixedly connected to the foundation steel bar 107, the first connecting short bar 103, and the second connecting short bar 104 by mechanical means, and the upper end of the column steel bar 105 extends outside the new foundation 108 and is fixedly connected to a column foundation 106. The fixed connection by mechanical means increases the stability and seismic resistance of the structure and provides additional support at the same time.
[0032] Specifically, two first anchor bars 302 are fixedly connected inside the second original masonry 301 by anchor bolts. Inside the rectangular column 304, there is a first stirrup 303. The first stirrup 303 is fixedly connected to the first anchor bar 302 by mechanical means. Through the anchor bolts and mechanical connection, the connection between the rectangular column 304 and the second original masonry 301 is strengthened, and the stability and load-bearing capacity of the column are improved.
[0033] Specifically, a second anchor bar 403 is fixedly connected to one side of the third original masonry 401 close to the tooth-like tenon 402 by an anchor bolt. A second stirrup 404 is arranged inside the construction column 405, and the second stirrup 404 is fixedly connected to the second anchor bar 403 by machinery.
[0034] Specifically, a steel plate 502 is arranged on one side of the original structural slab 501 away from the steel beam 503. The steel plate 502 is fixedly connected to the steel beam 503 by a tie bolt 504. By being fixedly connected to the steel beam 503, the connection between the steel beam 503 and the original structural slab 501 is enhanced, and the structural stability and bearing capacity are improved.
[0035] Working principle: A new foundation 108 is arranged outside the original foundation 102 to expand the stress area of the original foundation 102. The contact surface between the new foundation 108 and the original foundation 102 is roughened. The original foundation 102 is provided with a second connecting short bar 104 passing through and connected to the foundation steel bar 107 inside the new foundation 108 as Figure 1 shown; beam steel bars 202 are arranged by drilling holes on the outside of the first original masonry 201. The tie bars 203 are welded to the beam steel bars 202 in a T shape on the outside, and the tie bars 203 are anchored into the frame beam 204, so that the first original masonry 201 and the new frame beam 204 can be tied at each floor, and the retained wall is transformed and integrated with the frame. Similarly, the rectangular column 304 and the second original masonry 301 form an integral body. The difference is that a tooth-like tenon 402 is added at the connection between the construction column 405 and the third original masonry 401 to increase the overall structural strength; holes are opened on the original structural slab 501, and tie bolts 504 are placed in the holes, and then the steel beam 503 is fixedly connected to the tie bolts 504.
[0036] Embodiment 2
[0037] 1. Demolition project construction
[0038] (1) After the construction of the new column is completed and the concrete strength reaches the design requirements, demolition construction is carried out.
[0039] (2) The demolition construction sequence is to demolish from top to bottom. First, demolish the non-load-bearing structure, and then demolish the load-bearing structure; first, demolish the horizontal structure, and then demolish the vertical structure; first, demolish the slab, then demolish the beam, and then demolish the wall and column in sequence.
[0040] (3) Demolish the concrete floor slab: 1) Scaffolding is erected before demolition to ensure the construction safety of the operators and the floor structure. 2) The connection part between the floor slab and the exterior wall is segmented by using a water drill to open holes (or by the method of water saw cutting). After segmentation, it is demolished piece by piece and section by section by the method of manual + electric pick chiseling. 3) During demolition, the operators shall not stand on the unstable structural floor slab for operation.
[0041] 2. Construction of new beams and slabs
[0042] (1) After the beams, slabs and walls of this layer are demolished, the construction of the new beams and slabs is carried out. Before the formwork support frames for the new beams and slabs are erected, the lower floor slabs need to be temporarily supported to meet the bearing capacity requirements.
[0043] (2) After the concrete of the new beams and slabs is poured, curing shall be carried out in a timely manner. The formwork can be removed only after the concrete strength meets the design and formwork removal requirements.
[0044] (3) The connection between the steel bars of the new beams and the reserved steel bars of the columns can adopt welding or mechanical connection.
[0045] (4) After the formwork support of this layer is demolished, the demolition and construction of the new beams and slabs of the next layer are carried out.
[0046] (5) Repeat the above processes until the construction of the internal new structure is completed.
[0047] 3. Explanation:
[0048] 1) Without demolishing the internal structure first, adopt the design concept and structural replacement method of pouring the frame columns first, and constructing the floor slabs and concrete beams from top to bottom while demolishing and building, and use the old structure as a temporary support during the demolition and construction process.
[0049] 2) Design the form of the foundation reinforcement structure according to the characteristics of the foundation and structural layout of the existing building.
[0050] 3) Use anchor plates and anchor bars to tie the original masonry walls to the new frame beams and columns, so that the retained walls form an integral body with the internal frame after transformation, ensure the self-compressive bearing capacity of the walls and the shear bearing capacity of the anchor bars, ensure the stability of the exterior walls, and ensure the deformation coordination between the retained exterior walls and the new frame.
[0051] 4) Pour the frame columns first, study the design methods of wall chiseling and temporary floor support, consider the influence of the two-stage construction of the frame beams and columns, and design the strengthening measures for the beam-column connection joints.
[0052] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.
Claims
1. A construction system for retaining the original state of an exterior wall, characterized in that: include, A foundation reinforcement structure (1), the foundation reinforcement structure (1) further comprising a bearing layer (101), an original foundation (102) being fixedly connected to the middle of the upper portion of the bearing layer (101), an original wall (109) being fixedly connected to the upper portion of the original foundation (102), and a newly added foundation (108) being arranged above the bearing layer (101) and on the outer sides of the original foundation (102) and the original wall (109); A frame beam masonry reinforcement structure (2), the frame beam masonry reinforcement structure (2) further comprising a first original masonry (201), a beam reinforcement (202) being arranged inside the first original masonry (201), a tie bar (203) being fixedly connected to the left side of the beam reinforcement (202), a frame beam (204) being cast outside the tie bar (203), and the frame beam (204) being fixedly connected to the first original masonry (201); A frame column masonry reinforcement structure (3), wherein the frame column masonry reinforcement structure (3) further comprises a second original masonry (301), wherein a rectangular column (304) is arranged in the middle of the outer side of the second original masonry (301); A structural column masonry reinforcement structure (4), wherein the structural column masonry reinforcement structure (4) further comprises a third original masonry (401), a tooth joint (402) is arranged on the upper side of the third original masonry (401), and a structural column (405) is cast on the side of the third original masonry (401) close to the tooth joint (402); A steel beam original structure reinforcement structure (5), wherein the steel beam original structure reinforcement structure (5) comprises an original structure plate (501), and a steel beam (503) is arranged on one side of the original structure plate (501).
2. A construction system for retaining the original state of an exterior wall according to claim 1, characterized in that: A second short connecting bar (104) is provided through the upper end of the original foundation (102), a first short connecting bar (103) is provided through the lower end of the original wall (109) and the inside of the newly added foundation (108), and a foundation steel bar (107) is provided inside the newly added foundation (108).
3. A construction system for retaining the original state of an exterior wall according to claim 2, characterized in that: A column bar (105) is arranged on the right side of the first connecting short bar (103) and the second connecting short bar (104); the column bar (105) is fixedly connected to the foundation steel bar (107), the first connecting short bar (103) and the second connecting short bar (104) by mechanical means; and the upper end of the column bar (105) extends to the outside of the newly added foundation (108) and is fixedly connected to the column foundation (106).
4. The construction system for retaining the original state of an exterior wall according to claim 1, characterized in that: Two first anchor bars (302) are fixedly connected inside the second original masonry (301) via anchor bolts, and first stirrups (303) are arranged inside the rectangular column (304), and the first stirrups (303) are fixedly connected to the first anchor bars (302) mechanically.
5. The construction system for retaining the original state of an exterior wall according to claim 1, characterized in that: The third original masonry (401) is fixedly connected to a second anchor bar (403) on one side close to the tooth joint (402) through an anchor bolt, and a second stirrup (404) is arranged inside the structural column (405), and the second stirrup (404) is fixedly connected to the second anchor bar (403) through a mechanical method.
6. The construction system for retaining the original state of an exterior wall according to claim 1, characterized in that: A steel plate (502) is provided on a side of the original structural plate (501) away from the steel beam (503), and the steel plate (502) is fixedly connected to the steel beam (503) via tension bolts (504).