Movable concrete support foundation
The rapid connection technology of precast concrete base slabs and steel pipe columns has solved the problem of foundation demolition after the construction of cast-in-place concrete supports for bridges, achieving time and cost savings and improving construction efficiency and stability.
Patent Information
- Application Number
- CN202422987010.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-04
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-12-04
AI Technical Summary
The existing bridges require foundation demolition after the cast-in-place concrete support structure is completed, which increases the consumption of manpower and material resources, and also results in higher construction time and costs.
Precast concrete base slabs and steel pipe columns are used, and fixed components such as threaded sleeves, positioning rings and positioning bolts are used to connect them, so as to realize the rapid installation and repeated use of steel pipe columns and concrete base slabs. Auxiliary components such as cylinders and abutment plates are combined to improve stability.
It reduces construction time and costs, improves the quality and stability of bracket installation, and the concrete base plate can be reused multiple times.
Smart Images
Figure CN223593404U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the field of concrete support foundation, in particular to a movable concrete support foundation. BACKGROUND
[0002] The bridge cast-in-place concrete support is an auxiliary equipment for bridge construction, and the main function of the bridge cast-in-place concrete support is to support and fix the concrete pouring formwork, so as to ensure the stability and precision of concrete pouring, and thus ensure the construction quality of the bridge.
[0003] The bridge cast-in-place concrete support has various types, including full-frame support, beam-column support, etc. Before the bridge cast-in-place concrete support is erected, the foundation hardening treatment needs to be performed first to meet the foundation bearing capacity requirement of the support. In the related art, the conventional method of foundation hardening is to harden the concrete on the projection surface of the support.
[0004] According to the related art described above, the inventors believe that although the concrete hardening can ensure the bearing capacity of the support projection surface, the support needs to be broken again after the construction is completed, which increases the consumption of manpower and material resources. CONTENT OF THE UTILITY MODEL
[0005] In order to save the construction cost, the present application provides a movable concrete support foundation.
[0006] The present application provides a movable concrete support foundation using the following technical solution:
[0007] The movable concrete support foundation comprises a prefabricated concrete bottom plate, steel pipe columns are installed on the concrete bottom plate at intervals, mounting holes for positioning the steel pipe columns are formed on the concrete bottom plate, and a fixing assembly for fixing the steel pipe columns is arranged on the concrete bottom plate.
[0008] By using the above technical solution, after the original foundation ground is leveled, the prefabricated concrete bottom plate can be directly installed at the design point, and then the steel pipe columns and the concrete bottom plate are connected through the fixing assembly, and then the support erection can be started. Unlike the conventional operation, the support erection can be started only after the strength of the cast-in-place concrete foundation meets the requirements, which saves the time cost. In addition, the concrete bottom plate can be used repeatedly, which saves the construction cost.
[0009] Preferably, the fixing assembly comprises a threaded sleeve embedded in the concrete bottom plate, a positioning ring installed on the steel pipe column, and a positioning bolt penetrating through the positioning ring, and the positioning bolt is threadedly connected with the threaded sleeve.
[0010] By using the above technical solution, the threaded sleeve is embedded in the concrete bottom plate, the threaded sleeve and the positioning ring are connected through the positioning bolt, the connection strength between the steel pipe column and the concrete bottom plate is strengthened, and the quality of the support installation is ensured.
[0011] Preferably, a plurality of threaded sleeves and positioning bolts are provided, the plurality of threaded sleeves are uniformly arranged around the mounting hole, and the threaded sleeves and the positioning bolts are one-to-one corresponding.
[0012] By adopting the above technical scheme, the arrangement of the plurality of threaded sleeves and positioning bolts is beneficial to further strengthen the connection strength between the steel pipe column and the concrete bottom plate.
[0013] Preferably, a plurality of first reinforcing bars are embedded in the top of the concrete bottom plate, and a plurality of second reinforcing bars are embedded in the bottom of the concrete bottom plate, and the first reinforcing bars and the second reinforcing bars are arranged at intervals along the length direction of the concrete bottom plate.
[0014] By adopting the above technical scheme, the arrangement of the first reinforcing bars and the second reinforcing bars is beneficial to improve the structural strength of the concrete bottom plate and reduce the possibility of breaking of the concrete bottom plate.
[0015] Preferably, four lifting lugs are installed on the concrete bottom plate, and the four lifting lugs are one-to-one corresponding to the four corners of the concrete bottom plate.
[0016] By adopting the above technical scheme, the arrangement of the lifting lugs facilitates the connection of the lifting ropes by the operator, thereby improving the convenience of the operator in moving the concrete bottom plate.
[0017] Preferably, an auxiliary assembly is installed on both sides of the concrete bottom plate, the auxiliary assembly comprises a connecting seat arranged on the concrete bottom plate, an abutting plate arranged on the connecting seat, a gas cylinder installed on the connecting seat, and a piston rod of the gas cylinder fixedly connected with the abutting plate.
[0018] By adopting the above technical scheme, the gas cylinder is started, the distance between the abutting plate and the connecting seat is adjusted by the telescopic rod of the gas cylinder, the position of the abutting plate is fixed, the position of the connecting seat and the concrete bottom plate is locked, and the stability of the concrete bottom plate is improved.
[0019] Preferably, a connecting groove is formed on the side surface of the concrete bottom plate, a connecting block for plug-in cooperation with the connecting groove is fixedly connected to the connecting seat, a clamping plate for clamping the concrete bottom plate in cooperation with the connecting block is arranged on the connecting seat, a locking rod is arranged on the clamping plate, the locking rod penetrates through the concrete bottom plate and is in threaded cooperation with the connecting block.
[0020] By adopting the above technical scheme, the cooperation of the connecting block and the connecting groove facilitates the installation of the connecting seat on the concrete bottom plate by the operator, and the cooperation of the clamping plate and the locking rod is beneficial to strengthen the connection strength between the connecting seat and the concrete bottom plate.
[0021] Preferably, the clamping plate is provided with an anchor bolt, which penetrates the connecting seat and extends into the foundation base.
[0022] By adopting the technical scheme, the anchor bolt is arranged, which is beneficial to further improve the stability of the concrete bottom plate and reduce the possibility of the steel pipe column tilting.
[0023] In conclusion, the present application has at least one of the following beneficial technical effects:
[0024] 1. After the original foundation ground is leveled, the prefabricated concrete bottom plate can be directly installed at the design point, and then the steel pipe column and the concrete bottom plate are connected through the fixing assembly, and then the support erection is started, without waiting for the strength of the cast-in-place concrete foundation to meet the requirements before starting the support erection as in the conventional operation, thereby saving time cost. In addition, the concrete bottom plate can be recycled for multiple times, thereby saving construction cost.
[0025] 2. The concrete bottom plate is provided with a pre-buried bolt sleeve, and the threaded sleeve and the positioning ring are connected through a positioning bolt, so as to strengthen the connection strength between the steel pipe column and the concrete bottom plate and ensure the quality of the support installation.
[0026] 3. The air cylinder is started, the distance between the abutment plate and the connecting seat is adjusted by the air cylinder extension rod, the position of the abutment plate is fixed, the position of the connecting seat and the concrete bottom plate is locked, and the stability of the concrete bottom plate is improved. BRIEF DESCRIPTION OF DRAWINGS
[0027] Figure 1 is a structure schematic view of the movable concrete support foundation of the first embodiment of the present application.
[0028] Figure 2 is a structure schematic view of the movable concrete support foundation of the second embodiment of the present application.
[0029] Figure 3 is a structure schematic view of the movable concrete support foundation of the second embodiment of the present application.
[0030] Figure 4 is a structure schematic view of the movable concrete support foundation of the second embodiment of the present application.
[0031] The reference signs are as follows: 1, concrete bottom plate; 11, first reinforcing rib; 12, second reinforcing rib; 13, mounting hole; 14, lifting lug; 2, steel pipe column; 3, fixing assembly; 31, threaded sleeve; 32, positioning ring; 33, positioning bolt; 4, auxiliary assembly; 41, connecting seat; 42, abutment plate; 43, air cylinder; 44, anti-skid block; 45, positioning pin; 46, connecting groove; 47, connecting block; 48, clamping plate; 49, locking rod; 5, anchor bolt. DETAILED DESCRIPTION
[0032] The following will be described in combination with the drawingsFigures 1-4 The application is further described in detail.
[0033] Embodiment one
[0034] The embodiment one of the application discloses a movable concrete support foundation. Referring to Figure 1 The movable concrete support foundation comprises a prefabricated concrete bottom plate 1, which is a cuboid. The length of the concrete bottom plate 1 can be 5 meters, the width of the concrete bottom plate 1 can be 1.5 meters, and the height of the concrete bottom plate 1 can be 0.4 meters.
[0035] Referring to Figure 1 The concrete bottom plate 1 is horizontally arranged, and a plurality of first reinforcing bars 11 are embedded at the top of the concrete bottom plate 1. The diameter of the first reinforcing bar 11 can be 16 mm, and the plurality of first reinforcing bars 11 are arranged along the length direction of the concrete bottom plate 1. A plurality of second reinforcing bars 12 are embedded at the bottom of the concrete bottom plate 1. The diameter of the second reinforcing bar 12 can be 20 mm, and the plurality of second reinforcing bars 12 are arranged along the length direction of the concrete bottom plate 1. The arrangement of the first reinforcing bars 11 and the second reinforcing bars 12 is beneficial to improve the structural strength of the concrete bottom plate 1 and reduce the possibility of breaking of the concrete bottom plate 1.
[0036] Referring to Figure 1 , Figure 2 A steel pipe column 2 is installed on the concrete bottom plate 1, and two steel pipe columns 2 are arranged along the length direction of the concrete bottom plate 1. The interval length of the two steel pipe columns 2 can be 3 meters. Two installation holes 13 are formed on the concrete bottom plate 1, and the two installation holes 13 are arranged in pairs and correspond to the two steel pipe columns 2. The concrete bottom plate 1 is provided with a fixing assembly 3 for fixing the steel pipe column 2, and the fixing assembly 3 is provided in two groups, and the two groups of fixing assemblies 3 correspond to the two steel pipe columns 2.
[0037] Referring to Figure 1 , Figure 2 Each group of fixing assemblies 3 comprises a threaded sleeve 31, a positioning ring 32 and a positioning bolt 33. The threaded sleeve 31 is embedded in the concrete bottom plate 1, and eight threaded sleeves 31 are uniformly arranged around the axis of the installation hole 13. The positioning ring 32 is sleeved on the steel pipe column 2, and the positioning ring 32 is fixedly connected with the steel pipe column 2 and is in sliding fit with the inner side wall of the installation hole 13. The positioning bolt 33 is arranged on the positioning ring 32, and the positioning bolt 33 is arranged in eight groups and corresponds to the positioning ring 32. The positioning bolt 33 is in threaded fit with the threaded sleeve 31. The threaded sleeve 31 and the positioning ring 32 are connected through the positioning bolt 33, which is beneficial to strengthen the connection strength between the steel pipe column 2 and the concrete bottom plate 1 and ensure the quality of the support installation.
[0038] Referring to Figure 1 ,Figure 2 The concrete bottom plate 1 is provided with four lifting lugs 14 corresponding to four corners of the concrete bottom plate 1. An operator can connect the lifting lugs 14 through a crane and a lifting rope, so that the concrete bottom plate 1 is horizontally lifted and lowered, thereby improving the convenience of the operator in moving the concrete bottom plate 1.
[0039] The implementation principle of the embodiment one is that after the original foundation ground is leveled, the prefabricated concrete bottom plate 1 can be directly installed at the design point, and then the steel pipe column 2 and the concrete bottom plate 1 are connected through the fixing assembly 3, and then the support erection is started. Unlike the conventional operation, the support erection is not started until the strength of the cast-in-place concrete foundation meets the requirements, thereby saving time cost. In addition, the concrete bottom plate 1 can be recycled multiple times, thereby saving construction cost.
[0040] Embodiment two
[0041] With reference to Figure 3 The difference between the embodiment two and the embodiment one is that the concrete bottom plate 1 is further provided with an auxiliary assembly 4. The auxiliary assembly 4 is provided in two groups, and the two groups of auxiliary assemblies 4 are arranged on two sides of the concrete bottom plate 1. Each auxiliary assembly 4 includes a connecting seat 41 and an abutting plate 42. The connecting seat 41 is a cuboid, and the length direction of the connecting seat 41 is consistent with the length direction of the concrete bottom plate 1. The connecting seat 41 is internally provided with a gas cylinder 43, and the end of the gas cylinder 43 away from the piston rod is fixedly connected with the connecting seat 41. The abutting plate 42 is arranged on the side of the connecting seat 41 away from the concrete bottom plate 1, and the abutting plate 42 is fixedly connected with the piston rod of the gas cylinder 43. The side of the abutting plate 42 away from the connecting seat 41 is fixedly connected with an anti-skid block 44, and the abutting plate 42 is provided with a positioning pin 45 penetrating through the abutting plate 42 and extending into the foundation.
[0042] The operator can first excavate a soil pit for accommodating the concrete bottom plate 1 at the design point of the support, and then place the concrete bottom plate 1 and the auxiliary assembly 4 in the soil pit. The operator starts the gas cylinder 43 to adjust the distance between the connecting seat 41 and the abutting plate 42, until the abutting plate 42 abuts against the inner side wall of the soil pit. The position of the abutting plate 42 is fixed, the position of the connecting seat 41 and the concrete bottom plate 1 is locked, and the positioning pin 45 and the anti-skid block 44 are arranged to improve the stability of the concrete bottom plate 1.
[0043] With reference to Figure 3 、 Figure 4The side surface of the concrete bottom plate 1 is provided with a connecting groove 46, and the opening of the connecting groove 46 is rectangular. The connecting seat 41 is fixedly connected with a connecting block 47 away from the side surface of the ground block, and the connecting block 47 is in sliding fit with the inner side wall of the connecting groove 46. The top of the connecting seat 41 is provided with a clamping plate 48, and the bottom surface of the clamping plate 48 is in close contact with the top surface of the concrete bottom plate 1. The clamping plate 48 is provided with a locking rod 49, and the locking rod 49 is vertically arranged and penetrates the concrete bottom plate 1 and extends into the connecting groove 46, and the locking rod 49 is in threaded fit with the connecting block 47. The clamping plate 48 is provided with a plurality of anchor bolts 5, and the anchor bolts 5 penetrate the connecting seat 41 and extend into the foundation.
[0044] The implementation principle of the second embodiment of the present application is that the cooperation of the connecting block 47 and the connecting groove 46 facilitates the operator to install the connecting seat 41 on the concrete bottom plate 1, and the cooperation of the clamping plate 48 and the locking rod 49 is beneficial to strengthen the connection strength between the connecting seat 41 and the concrete bottom plate 1. The arrangement of the anchor bolt 5 is beneficial to improve the stability of the concrete bottom plate 1 and reduce the possibility of the inclination of the steel pipe column 2. The cooperation of the connecting seat 41 and the abutting plate 42 is beneficial to lock the position of the concrete bottom plate 1, and the arrangement of the positioning pin 45 and the anti-skid block 44 is beneficial to further improve the stability of the concrete bottom plate 1.
[0045] The above are the preferred embodiments of the present application, and do not limit the protection scope of the present application, so: any equivalent changes made according to the structure, shape, principle of the present application should be covered in the protection scope of the present application.
Claims
1. A transportable concrete formwork foundation, characterised in that: The utility model provides a prefabricated concrete bottom plate (1) is provided with steel pipe column (2) on interval, and the concrete bottom plate (1) is provided with the fixing assembly (3) for fixing steel pipe column (2) on interval.
2. A transportable concrete formwork foundation according to claim 1 wherein: The fixing assembly (3) includes a threaded sleeve (31) embedded in the concrete bottom plate (1), a positioning ring (32) mounted on the steel pipe column (2), and a positioning bolt (33) passing through the positioning ring (32), wherein the positioning bolt (33) is threadedly connected with the threaded sleeve (31).
3. A transportable concrete formwork foundation according to claim 2 wherein: The threaded sleeve (31) and the positioning bolt (33) are provided in plurality, and the plurality of threaded sleeves (31) are uniformly arranged around the mounting hole (13), and the threaded sleeve (31) and the positioning bolt (33) are one-to-one corresponding.
4. A transportable concrete formwork foundation according to claim 1 wherein: The concrete bottom plate (1) is embedded with a plurality of first reinforcing bars (11) on the top and a plurality of second reinforcing bars (12) on the bottom, and the first reinforcing bars (11) and the second reinforcing bars (12) are arranged in interval along the length direction of the concrete bottom plate (1).
5. A transportable concrete formwork foundation according to claim 1 wherein: The concrete bottom plate (1) is provided with four lifting lugs (14) corresponding to the four corners of the concrete bottom plate (1).
6. A transportable concrete formwork foundation according to claim 1 wherein: The concrete bottom plate (1) is provided with an auxiliary assembly (4) on both sides, the auxiliary assembly (4) includes a connecting seat (41) provided on the concrete bottom plate (1), an abutment plate (42) provided on the connecting seat (41), and a gas cylinder (43) mounted on the connecting seat (41), wherein the piston rod of the gas cylinder (43) is fixedly connected with the abutment plate (42).
7. A transportable concrete formwork foundation according to claim 6 wherein: The connecting seat (41) is fixedly connected with a connecting block (47) used for plug-in cooperation with the connecting groove (46) on the side surface of the concrete bottom plate (1), and the connecting seat (41) is provided with a clamping plate (48) used for clamping the concrete bottom plate (1) in cooperation with the connecting block (47), wherein the clamping plate (48) is provided with a locking rod (49) passing through the concrete bottom plate (1) and threadedly connected with the connecting block (47).
8. A transportable concrete formwork foundation according to claim 7 wherein: The clamping plate (48) is provided with an anchor bolt (5) passing through the connecting seat (41) and extending into the foundation.