Reinforcing system for column pier template on shock insulation support

Abstract

The utility model provides a reinforcing system for an upper column pier template of a shock insulation support, which is used in the technical field of shock insulation support construction. Comprising an embedded steel plate, an upper top plate, a shock insulation support and a rotary supporting device. The shock insulation support is arranged between the pre-buried steel plate and the upper top plate, and the rotary supporting device is arranged below the suspended portion of the upper top plate and abuts against the upper top plate and the pre-buried steel plate. Under the condition that an existing shock insulation support, an upper pier column and a lower pier column are not changed, the rotary supporting device is additionally arranged, so that the suspended part of the upper top plate is effectively supported, and the forming quality and the appearance quality of the upper pier column are improved; the rotary supporting device can be conveniently, efficiently and accurately mounted, dismounted and adjusted, has a wide application range and can be used in a turnover mode.

Description

Technical Field

[0001] This utility model belongs to the field of seismic isolation bearing construction technology, and in particular relates to a formwork reinforcement system for column piers on seismic isolation bearings. Background Technology

[0002] Seismic resistance technology can be mainly divided into traditional seismic resistance technology and seismic isolation technology. Seismic isolation technology refers to using seismic isolation bearings to separate the upper and lower building structures. During an earthquake, the seismic isolation bearings will undergo significant horizontal deformation, thereby hindering the transmission of seismic energy, prolonging the natural vibration period of the upper building structure, and ultimately reducing the seismic response of the upper building structure and ensuring the safety of the building structure. Among them, the friction pendulum seismic isolation bearing is a circular seismic isolation bearing, while the upper column pier above the seismic isolation bearing is a cube. The upper column pier is usually made of steel plate with pre-embedded anchor bars through the seismic isolation bearing as the bottom formwork. However, because the area of ​​the steel plate is relatively large compared to the seismic isolation bearing, the steel plate is suspended on all sides. When pouring the concrete for the upper column pier, the suspended part of the steel plate has no reliable bottom support and is prone to sinking under stress, resulting in gaps between it and the side formwork of the upper column pier. This ultimately causes quality problems such as concrete leakage, root rot, and exposed concrete aggregate, which greatly affects the forming quality and appearance of the upper column pier. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a reinforcement system for the formwork of the upper column pier of the seismic isolation bearing, which solves the problem of poor forming quality and appearance quality of the upper column pier caused by the sinking of the bottom formwork of the upper column pier under stress.

[0004] The technical solution adopted in this utility model is: a seismic isolation bearing upper column pier formwork reinforcement system, including a pre-embedded steel plate, an upper top plate, a seismic isolation bearing, and a rotating support device; the seismic isolation bearing is disposed between the pre-embedded steel plate and the upper top plate, the pre-embedded steel plate is used to fix the seismic isolation bearing to the lower pier column, and the upper top plate is used to form the casting space of the upper column pier; the rotating support device is disposed below the suspended part of the upper top plate and abuts against the upper top plate and the pre-embedded steel plate respectively.

[0005] Furthermore, the rotating support device includes an adjustment part and a support part, the support part being connected to both ends of the adjustment part and respectively pressing against the upper top plate and the embedded steel plate; the adjustment part is capable of adjusting the distance between the two support parts.

[0006] Furthermore, the adjusting part includes a rod and a tube, the rod being inserted into the tube, and the rod and the tube having multiple positioning positions.

[0007] Furthermore, one end of the rod is connected to the support, and the end of the tube away from the rod is connected to another support. Both the rod and the tube are provided with multiple adjustment holes, which can be fixed by fasteners.

[0008] Furthermore, the rod is a threaded rod, and the tube is provided with internal threads and threadedly connected to both ends of the rod; the other end of the tube is connected to the support.

[0009] Furthermore, a rotating flange is vertically provided on the outer side of the rod.

[0010] Furthermore, the support includes a first plate and a second plate perpendicular to the first plate. The first plate is attached to the bottom surface of the upper top plate and the top surface of the embedded steel plate; the second plate is attached to the side surface of the upper top plate and the embedded steel plate.

[0011] Furthermore, the rotating support device is evenly arranged along the edges of the embedded steel plate and the upper top plate.

[0012] Furthermore, the rotating support device is disposed on both sides of the corners and the middle of the edges of the embedded steel plate and the upper top plate.

[0013] The advantages and positive effects of this utility model are:

[0014] This application, without altering the existing seismic isolation bearings and upper and lower pier columns, achieves effective support for the suspended portion of the upper slab by adding a rotating support device. The overall force transmission path is scientifically and rationally designed, preventing the suspended portion of the upper slab from sinking under stress and creating gaps between it and the side formwork of the upper pier, which could ultimately lead to quality problems such as concrete leakage, root rot, and exposed concrete aggregate. This improves the forming quality and appearance of the upper pier.

[0015] This application designs a rotating support device for use in the construction of piers on seismic isolation bearings, including a support part and an adjustment part. It realizes convenient, efficient and precise installation, disassembly and adjustment of the rotating support device, effectively solves quality problems such as grout leakage at the bottom of the pier, and helps to improve construction efficiency. Moreover, the rotating support device has a wide range of applications, can be reused, and saves construction costs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a specific embodiment of the present utility model;

[0017] Figure 2 This is a schematic diagram of the rotating support device structure according to a specific embodiment of this utility model;

[0018] Figure 3This is a schematic diagram of the rotating support device structure of another specific embodiment of this utility model;

[0019] Figure 4 This is a schematic diagram of a rotating flange structure according to a specific embodiment of the present invention;

[0020] Figure 5 This is a schematic diagram of the installation position of the rotating support device according to a specific embodiment of this utility model;

[0021] In the picture:

[0022] 1. Upper column pier; 2. Lower column pier; 3. Seismic isolation bearing; 4. Anchor bar; 5. Top plate; 51. Anchor bar hole; 6. Embedded steel plate; 7. Rotary support device; 71. Adjustment part; 711. Rod body; 712. Pipe body; 713. Rotary flange; 72. Support part; 721. First plate body; 722. Second plate body; 8. Side formwork; 9. Side formwork reinforcement structure. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0024] like Figures 1 to 5As shown, this application provides a seismic isolation bearing upper column pier formwork reinforcement system. The seismic isolation bearing 3 is used to separate the upper structure and the lower structure of the building. In this application, the seismic isolation bearing 3 is set between the upper column pier 1 and the lower column pier 2. The bottom surface of the upper column pier 1 and the top surface of the lower column pier 2 are the mounting surfaces of the seismic isolation bearing 3. These mounting surfaces are usually larger than the size of the seismic isolation bearing 3 itself. The lower column pier 2 is constructed first, and then the seismic isolation bearing 3 is installed on the lower column pier 2. Finally, the upper column pier 1 is constructed. This application is used for the construction of the upper column pier 1. The seismic isolation bearing upper column pier formwork reinforcement system includes a pre-embedded steel plate 6, an upper top plate 5, a seismic isolation bearing 3, and a rotating support device 7. The seat 3 is positioned between the embedded steel plate 6 and the upper top plate 5. The embedded steel plate 6 is fixed to the top surface of the lower column pier 2 by anchor bars 4, which is used to fix the seismic isolation bearing 3 to the lower column pier 2. The upper top plate 5 is installed on the upper end of the seismic isolation bearing 3 and is positioned opposite to the embedded steel plate 6. It is used to form the casting space of the upper column pier 1 and to connect and fix the seismic isolation bearing 3 and the upper column pier 1 after the upper column pier 1 is cast. Under normal circumstances, the upper column pier 1 and the lower column pier 2 have the same cross-sectional shape, and the upper top plate 5 and the embedded steel plate 6 have the same shape and size. The rotating support device 7 is set below the suspended part of the upper top plate 5 and abuts against the upper top plate 5 and the embedded steel plate 6 respectively.

[0025] In this application, the upper top plate 5 serves as the bottom formwork of the upper column pier 1, and is spliced ​​with the side formwork of the upper column pier 1 to form the pouring space of the upper column pier 1. The rotating support device 7 is set to support the upper top plate 5, and its position is at the suspended part of the upper top plate 5 relative to the seismic isolation bearing 3. During concrete pouring, the upper top plate 5 transfers the vertical load it bears to the seismic isolation bearing 3 and the rotating support device 7, and then further transfers it downward to the lower column pier 2 through the two. This support system can provide sufficient support force for the upper top plate 5 to meet the requirements of the upper top plate 5 to resist the gravity load and impact load of the concrete during the concrete pouring process of the upper column pier 1, and avoid the suspended part of the upper top plate 5 from sinking under force and creating gaps between it and the side formwork 8 of the upper column pier 1, thus ensuring the pouring quality of the upper column pier 1.

[0026] It should be noted that the cross-sectional shapes of the upper column pier 1 and the lower column pier 3 can be set as needed, generally square or circular. The center of the seismic isolation bearing 3 is located in the same vertical circumference as the center of the upper column pier 1 and the lower column pier 2. This allows the load to be transmitted in a vertical straight line, and the upper column pier 1, the lower column pier 2 and the seismic isolation bearing 3 are subjected to more balanced and stable forces. The upper top plate 5 and the embedded steel plate 6 have the same shape and size as the cross-section of the upper column pier 1 and the lower column pier 2, which can realize the uniform and effective transmission of load.

[0027] like Figures 2 to 3As shown, the rotating support device 7 includes an adjustment part 71 and a support part 72. The support part 72 is connected to both ends of the adjustment part 71 and presses against the upper top plate 5 and the pre-embedded steel plate 6 respectively. The adjustment part 71 can adjust the distance between the two support parts 72. In use, the rotating support device 7 is vertically arranged. The adjustment part 71 allows the support parts 72 at both ends to move closer or further apart. This not only ensures that the support parts 72 can firmly press against the upper top plate 5 and the embedded steel plate 6, guaranteeing a reliable connection between the rotating support device 7 and the upper top plate 5 and the embedded steel plate 6, thus achieving effective load transfer, but also allows the rotating support device 7 to be used with upper top plates 5 and embedded steel plates 6 at different spacings, which helps save costs and allows for repeated use. Furthermore, this technical solution makes the rotating support device 7 easier to install and disassemble. Workers only need to increase the length of the entire device using the adjustment part 71 to fix it in the set position, and decrease the length of the entire device using the adjustment part 71 to disconnect the rotating support device from the upper top plate 5 and the embedded steel plate 6, significantly reducing the difficulty of operation for workers and improving work efficiency.

[0028] In this embodiment, the adjustment part 71 includes a rod 711 and a tube 712. The rod 711 is inserted into the tube 712, and the rod 711 and the tube 712 have multiple positioning positions. The tube 712 in this application is provided with a cavity that can cooperate with the rod 711. The arrangement of the rod 711 and the tube 712 is to adjust the length of the rod 711 located in the tube 712 by adjusting its different positioning positions, thereby adjusting the overall length of the adjustment part 71 and ultimately moving the support parts 72 closer or further apart. The advantage of this arrangement is that the cooperation between the rod 711 and the tube 712 is adjusted in advance, and the rod 711 can be directly adjusted to the positioning position when the rotating support device 7 is installed, supported, and disassembled. This allows for convenient adjustment of the position of the rod 711 to meet the usage requirements of the rotating support device 7.

[0029] In a technical solution of a particular embodiment that can be selected, such as Figure 2 As shown, the adjustment part 71 includes a rod 711 and a tube 712. One end of the rod 711 is connected to the support part 72, and the other end is inserted into the tube 712. The end of the tube 712 away from the rod 711 is connected to another support part 72. Both the rod 711 and the tube 712 are provided with multiple adjustment holes. The adjustment holes on the rod 711 and the adjustment holes on the tube 712 are matched. When the two adjustment holes are connected, a positioning position is formed. By inserting fasteners into the connected adjustment holes, the rod 711 and the tube 712 can be connected and fixed by the fasteners, so that the adjustment part 71 can be formed to a set length to meet the length adjustment requirements of the rotary support device 7.

[0030] Furthermore, in the above-mentioned optional embodiments, the setting of the adjustment hole is matched with the length required for the installation, support and disassembly of the rotating support device 7. The spacing between the adjustment holes can be set in advance according to the length of the rod 711 inserted into the tube 712 under different usage scenarios. When in use, it can be directly adjusted to the positioning position corresponding to the length as needed, so as to simplify the operation of adjusting the length of the adjustment part 71 and make the adjustment more convenient and precise.

[0031] In another possible specific embodiment of the technical solution, such as Figure 3 As shown, the rod 711 is a threaded rod, and the tube 712 is provided with internal threads and threadedly connected to both ends of the rod 711; the other end of the tube 712 is connected to the support part 72; that is, the adjustment part 71 includes two tubes 712 and a rod 711 with both ends inserted into the two tubes 712 respectively. The rod 711 and the tubes 712 can be threadedly engaged, realizing precise adjustment and self-locking. This setting can, on the one hand, realize precise adjustment of the position of the rod 711, and thus precisely adjust the length of the adjustment part 71; on the other hand, it can limit the rod 711 through self-locking. Through this technical solution, more continuous multiple positioning positions can be formed, so that the rotary support device 7 can be used for support between the upper top plate 5 and the embedded steel plate 6 with different spacing, further expanding the application range of the rotary support device 7, which is conducive to repeated use and cost saving.

[0032] Furthermore, in the above-mentioned optional embodiments, a rotating flange 713 is vertically provided on the outer side of the rod 711. It should be noted that the rotating flange 713 is for the operator to grip. By providing the rotating flange 713, the operator can more conveniently rotate the rod 711, allowing it to move inward or outward towards the tube 712, thereby adjusting the length of the adjusting part 71. Preferably, the rotating flange 713 is located in the middle of the rod 711 and protrudes outward from the surface of the rod 711, having a handle for easy gripping by the operator.

[0033] In a specific embodiment, such as Figure 4 As shown, the rotary flange 713 adopts a block structure with a circular hole in the middle. The radius of the circular hole matches the radius of the rod 711, so that the rotary flange 713 can be fitted onto the outside of the rod 711. An extension rod perpendicular to the outer surface of the block structure is provided on the opposite outer surface, so that the operator can drive the block structure and the rod 711 to rotate synchronously by holding the extension rod.

[0034] In the technical solution of this embodiment, such as Figure 2 and Figure 3As shown, the support 72 includes a first plate 721 and a second plate 722 perpendicular to the first plate 721. The first plate 721 is attached to the bottom surface of the upper top plate 5 and the top surface of the embedded steel plate 6; the second plate 722 is attached to the sides of the upper top plate 5 and the embedded steel plate 6. The first plate 721 is in full contact with the bottom surface of the upper top plate 5 and the top surface of the embedded steel plate 6, and with the cooperation of the adjusting part 71, it abuts against the upper top plate 5 and the embedded steel plate 6 respectively, thus achieving effective load transfer. The second plate 722 is used to position and limit the support 72. Since the second plate 722 is close to the sides of the upper top plate 5 and the embedded steel plate 6, that is, located at the edge of the upper top plate 5 and the embedded steel plate 6, it can fix the support 72 at the farthest end of the upper top plate 5 relative to the seismic isolation support 3, that is, the edge of the suspended part. The top plate 5 bears the maximum bending moment load. By setting the rotating support device 7 at this position, its function of effectively supporting the top plate 5 can be maximized. The second plate 722 forms a positioning for the support part 72, so that the operator can quickly and accurately install the rotating support device 7 in the set position. On the other hand, it can also limit the horizontal direction of the support part 72 when the edge of the top plate 5 bears the bending moment load, so as to prevent the rotating support device 7 from moving laterally, thus ensuring the stability and safety of the overall support structure.

[0035] Furthermore, in one optional specific embodiment, the rotating support device 7 is evenly arranged along the edges of the embedded steel plate 6 and the upper top plate 5, so that each part of the edge of the upper top plate 5 can be effectively supported, so as to ensure that the upper top plate 5 can resist the load during the pouring of the upper column pier concrete and will not deform.

[0036] Furthermore, in another optional specific embodiment of the technical solution, such as Figure 5 As shown, the rotating support device 7 is installed on both sides of the corners and the middle of the edges of the embedded steel plate 6 and the upper top plate 5. It should be noted that the corners and the middle of the edges of the upper top plate 5 are the locations bearing the greatest load and are also the weakest points prone to deformation. Therefore, by installing the rotating support device 7 on the corners and the middle of the edges of the upper top plate 5, deformation in these areas can be effectively prevented. Compared to the previous technical solution, this arrangement can still effectively support the upper top plate 5, while reducing the number of rotating support devices 7 and the workload, thus improving construction efficiency.

[0037] The construction method for the above-mentioned seismic isolation bearing upper column pier formwork reinforcement system proposed in this application includes the following steps:

[0038] S1. The top plate 5 is installed at the set position above the seismic isolation bearing 3 by means of the anchor bar 4 on the seismic isolation bearing 3.

[0039] like Figure 1, Figure 4 As shown, the lower column pier 2 has been completed in advance. The seismic isolation bearing 3 is fixed to the lower column pier 2 by passing the anchor bar 4 through the pre-embedded steel plate 6. The upper top plate 5 is provided with anchor bar holes that are compatible with the anchor bar 4 on the seismic isolation bearing 3. By passing the anchor bar 4 on the seismic isolation bearing 3 through the anchor bar holes of the upper top plate 5, the upper top plate 5 can be accurately installed on the seismic isolation bearing 3, so that the upper top plate 5 is located in the set position after installation, thus completing the installation and positioning of the upper top plate 5.

[0040] S2. Install and reinforce the side formwork 8 of the upper column pier 1;

[0041] Specifically, the side formwork 8 is vertically installed on the upper surface of the top plate 5 and is set around the edge of the top plate 5, and is spliced ​​and connected with the top plate 5 to form a shape that matches the outer contour of the upper column pier 1; the side formwork 8 is positioned and fixed by the side formwork reinforcement structure 9. Specifically, the side formwork reinforcement structure 9 includes steel pipes, tie rods, wooden beams and buckles, which are commonly used components in formwork construction and will not be described in detail here.

[0042] S3. Install the rotating support device 7 at the four corners and the center of the four sides of the top plate 5 and the embedded steel plate 6.

[0043] Specifically, such as Figure 5 As shown, the rotating support device 7 is respectively set at the corners of the embedded steel plate 6 and the upper top plate 5 and at the center of the four sides. The first plate 721 at the upper end of the rotating support device 7 is attached to the bottom surface of the upper top plate 5, and the first plate 721 at the lower end of the rotating support device 7 is attached to the top surface of the embedded steel plate 6. The second plates 722 at both ends of the rotating support device 7 are attached to the sides of the upper top plate 5 and the embedded steel plate 6.

[0044] S4. The rotating support is made to abut against the top plate 5 and the embedded steel plate 6 by rotating flange 713;

[0045] After ensuring the accurate installation position of the rotating support device 7, rotate the rotating flange 713 to make the rotating support device 7 press against the top plate 5 and the embedded steel plate 6 respectively.

[0046] S5. Verify whether the elevation, position, and size of the side formwork 8 and the top plate 5 meet the design requirements;

[0047] S6. Pour the concrete for the upper column pier 1;

[0048] S7. After the concrete reaches the design strength, remove the side formwork 8 and the rotating support device 7.

[0049] The removed side formwork 8 and rotating support device 7 can be reused at the column pier of the next seismic isolation bearing 3 to be constructed, as needed.

[0050] This application, without altering the existing seismic isolation bearings and upper and lower pier columns, achieves effective support for the suspended portion of the upper slab by adding a rotating support device. The overall force transmission path is scientifically and rationally designed, preventing the suspended portion of the upper slab from sinking under stress and creating gaps between it and the side formwork of the upper pier, which could ultimately lead to quality problems such as concrete leakage, root rot, and exposed concrete aggregate. This improves the forming quality and appearance of the upper pier.

[0051] This application designs a rotating support device for use in the construction of piers on seismic isolation bearings, including a support part and an adjustment part. It realizes convenient, efficient and precise installation, disassembly and adjustment of the rotating support device, effectively solves quality problems such as grout leakage at the bottom of the pier, and helps to improve construction efficiency. Moreover, the rotating support device has a wide range of applications, can be reused, and saves construction costs.

[0052] The embodiments of this utility model have been described in detail above, but the content described is only a preferred embodiment of this utility model and should not be considered as limiting the scope of implementation of this utility model. All equivalent changes and improvements made in accordance with the claims of this utility model should still fall within the patent coverage of this utility model.

Claims

1. A seismic isolation bearing upper column pier formwork reinforcement system, characterized in that: The device comprises a pre-embedded steel plate, an upper top plate, a shock insulation support and a rotating support device; the shock insulation support is arranged between the pre-embedded steel plate and the upper top plate, the pre-embedded steel plate is used for fixing the shock insulation support on a lower pier column, and the upper top plate is used for forming a pouring space of an upper column pier; the rotating support device is arranged below a suspended part of the upper top plate and abuts against the upper top plate and the pre-embedded steel plate respectively.

2. The seismic isolation bearing upper column pier formwork reinforcement system according to claim 1, wherein: The rotating support device comprises an adjusting part and a supporting part, the supporting part is connected to two ends of the adjusting part and abuts against the upper top plate and the pre-embedded steel plate respectively; and the adjusting part can adjust the distance between the two supporting parts.

3. The seismic isolation bearing upper column pier formwork reinforcement system according to claim 2, wherein: The adjusting part comprises a rod body and a tube body, the rod body is inserted into the tube body, and the rod body and the tube body have a plurality of positioning positions.

4. The seismic isolation bearing upper column pier formwork reinforcement system according to claim 3, wherein: One end of the rod body is connected to the supporting part, the other end of the tube body is connected to the other supporting part, and a plurality of adjusting holes are arranged on the rod body and the tube body and can be connected and fixed by fasteners.

5. The seismic isolation bearing upper column pier formwork reinforcement system of claim 3, wherein: The rod body is a threaded rod, the tube body is provided with internal threads and is threadedly connected to two ends of the rod body; and the other end of the tube body is connected to the supporting part.

6. The seismic isolation bearing upper column pier formwork reinforcement system of claim 5, wherein: A rotating flange is vertically arranged on the outside of the rod body.

7. The seismic isolation bearing upper column pier formwork reinforcement system according to any one of claims 2-5, wherein: The supporting part comprises a first plate body and a second plate body which is perpendicular to the first plate body, the first plate body is attached to the bottom surface of the upper top plate and the top surface of the pre-embedded steel plate; and the second plate body is attached to the side surface of the upper top plate and the pre-embedded steel plate.

8. The seismic isolation bearing upper column pier formwork reinforcement system of claim 7, wherein: The rotating support device is uniformly arranged along the edges of the pre-embedded steel plate and the upper top plate.

9. The seismic isolation bearing upper column pier formwork reinforcement system of claim 7, wherein: The rotating support device is arranged at both sides of the corners and the middle of the edges of the pre-embedded steel plate and the upper top plate.

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