Temporary supporting column for underground space of historical building

Abstract

According to the technical scheme, the temporary supporting column for the underground space of the historical building is characterized in that the temporary supporting column comprises a positioning column, an extension supporting assembly, an upper fixing assembly, an elastic supporting assembly and a lower fixing assembly, the extension supporting assembly abuts against the upper fixing assembly, and the upper fixing assembly is slidably connected with the elastic supporting assembly; the upper fixing assembly and the lower fixing assembly are used as basic parts for supporting, the elastic supporting assembly deforms to deal with ground subsidence, and therefore the elastic supporting assembly adapts to construction difficulties existing in underground space of historical buildings, and on the basis, the elastic supporting assembly is connected with the upper fixing assembly and the lower fixing assembly in a sliding mode. The length of the temporary supporting column is extended by arranging the extension supporting assembly so that the stable bearing state can be kept, and the purpose that the length is temporarily increased according to the construction process so that the supporting effect can be achieved at any time is achieved.

Description

Technical Field

[0001] This utility model relates to a support column, and more specifically, to a temporary support column for underground spaces of historical buildings. Background Technology

[0002] The construction of underground spaces is a gradual development process. Support columns are required during construction to ensure structural stability and safety. Since the main structure is not yet fully formed and cannot rely solely on its own weight to maintain stability, temporary support columns need to be erected in advance. These temporary support columns not only provide an operating platform for the high-altitude installation of the main structure but also maintain the stability of the installed structural components. In existing technologies, the construction of temporary support columns in basements typically employs lightweight construction methods, with construction steps similar to those for formal support columns, including pouring the column foundation, installing the support columns, adjusting the support columns, and pouring the top slab. However, in actual construction, it has been found that historical buildings are inherently fragile and cannot be directly expanded to the intended space. Construction requires a top-down, gradual excavation approach. The underground space gradually subsides, causing changes in the length of the support columns. Therefore, directly cast temporary support columns cannot effectively stabilize the base during construction. Thus, a temporary support column for underground spaces in historical buildings is needed. This device can temporarily increase in length according to the construction progress to ensure continuous support.

[0003] For the reasons mentioned above, how to temporarily increase the length according to the construction progress is the problem that this application considers. Utility Model Content

[0004] To address the shortcomings of existing technologies, a screw plug is provided. This device can be temporarily extended in length according to the construction process to ensure that it always provides support.

[0005] To achieve the above objectives, the following technical solution is provided: a temporary support column for the underground space of a historical building, comprising a positioning column, an extension support component, an upper fixing component, an elastic support component, and a lower fixing component. The extension support component, the upper fixing component, the elastic support component, and the lower fixing component are sequentially connected to the positioning column. The extension support component abuts against the upper fixing component. The upper fixing component is slidably connected to the elastic support component. The lower fixing component is slidably connected to the elastic support component.

[0006] When the ground in an underground space subsides, the lower fixed component moves downward, and the elastic support component deforms.

[0007] In summary, the above technical solution has the following beneficial effects: In this utility model, the positioning column itself plays a positioning role, preventing the extension support component, upper fixing component, moving component, and lower fixing component from tilting in the installation direction. It is typically fixedly connected to the top layer structure of the underground space, and the length of the positioning column itself determines the limit of the temporary support column's extension support. Before further development of the underground space, temporary support columns need to be installed first. At this time, the lower fixing component will abut against the lower ground, and the upper fixing component will abut against the top layer structure. During the ground subsidence process, because the elastic support component can push the lower fixing component to move, the lower fixing component can... The temporary support columns must always remain in contact with the ground to avoid being suspended in mid-air and losing all support. However, due to the deformation of the elastic support components, the support capacity will still be affected. For safety reasons, multiple temporary support columns will be set up, with a design load-bearing capacity far exceeding the actual load. Therefore, there is enough time to manually lower the upper fixed components to reset the elastic support components. In addition, extension support components are added to support the upper fixed components and the top structure. Multiple extension support components can also be set up to allow the temporary supports to return to the state of maximum load-bearing capacity. This allows the length to be temporarily increased according to the construction progress to ensure that the support function is always in place.

[0008] Due to the special nature of historical buildings, the development of underground space should be carried out with the principle of minimizing impact. Therefore, it is necessary to quickly deploy temporary support columns, which need to be able to quickly cope with the problem of ground subsidence. In this utility model, an elastic support component is used as a medium. Only a simple deformation and fixing operation is needed to complete the transformation of the support state, which greatly improves the construction efficiency. In contrast, traditional temporary support columns require more time to solidify, which does not meet the construction requirements.

[0009] This utility model uses an upper fixed component and a lower fixed component as the basic components for achieving support. The elastic support component utilizes its own deformation capacity to cope with ground subsidence, thereby adapting to the construction difficulties existing in the underground space of historical buildings. On this basis, by setting an extension support component to extend the length of the temporary support column, a stable load-bearing state is maintained, and the length can be temporarily increased according to the construction progress to ensure that it plays a supporting role at all times. Attached Figure Description

[0010] Figure 1 A three-dimensional structural diagram of temporary support columns for the underground space of a historical building;

[0011] Figure 2 This is a cross-sectional view of the present invention.

[0012] Reference numerals: 1. Positioning post; 2. Extension support assembly; 3. Upper fixing assembly; 4. Elastic support assembly; 5. Lower fixing assembly;

[0013] 11. Abutment groove;

[0014] 21. First half-ring; 22. Second half-ring; 23. Bolt; 24. Connecting pipe; 25. Third abutment; 26. Threaded rod; 27. Internal thread;

[0015] 31. Upper fixing component; 32. Upper fixing tube; 33. Upper return spring; 34. Upper receiving groove;

[0016] 41. Moving tube; 42. First return spring; 43. First abutment; 44. Second return spring; 45. Second abutment;

[0017] 411. First receiving tank; 412. Second receiving tank;

[0018] 51. Lower fixing component; 52. Lower fixing tube; 53. Lower return spring; 54. Lower receiving groove; 55. Insertion rod. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Identical components are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to directions in the accompanying drawings, and the terms "bottom surface," "top surface," "inner," and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0020] Reference Figure 1-2 As shown, the temporary support column for the underground space of the historical building includes a positioning column 1, an extension support component 2, an upper fixing component 3, an elastic support component 4, and a lower fixing component 5. The extension support component 2, the upper fixing component 3, the elastic support component 4, and the lower fixing component 5 are sequentially connected to the positioning column 1. The extension support component 2 abuts against the upper fixing component 3. The upper fixing component 3 is slidably connected to the elastic support component 4. The lower fixing component 5 is slidably connected to the elastic support component 4.

[0021] When the ground in the underground space sinks, the lower fixed component 5 moves downward and the elastic support component 4 deforms.

[0022] In this invention, the positioning post 1 serves a positioning function to prevent the extension support component 2, upper fixing component 3, moving component, and lower fixing component 5 from tilting during installation. It is typically fixedly connected to the top layer structure of the underground space. The length of the positioning post 1 itself determines the limit of the temporary support post's extension range. Before further development of the underground space, temporary support posts need to be installed. At this time, the lower fixing component 5 will abut against the lower ground, and the upper fixing component 3 will abut against the top layer structure. During ground subsidence, the elastic support component 4 can push the lower fixing component 5 to move, thus ensuring that the lower fixing component 5 remains in contact with the ground at all times. To avoid a state of suspension and complete loss of support, the elastic support component 4 is deformed, so the support capacity will still be affected. For safety reasons, multiple temporary support columns will be set up, with a design load-bearing capacity much greater than the actual load-bearing capacity. Therefore, there is enough time to manually move the upper fixed component 3 down to reset the elastic support component 4. An extension support component 2 is added to abut against the upper fixed component 3 and the top structure. Multiple extension support components 2 can also be set up to allow the temporary support column to return to the state of maximum load-bearing capacity. This way, the length can be temporarily increased according to the construction progress to ensure that it always provides support.

[0023] Due to the special nature of historical buildings, the development of underground space should be carried out with the principle of minimizing impact. Therefore, it is necessary to quickly deploy temporary support columns, which need to be able to quickly cope with the problem of ground subsidence. In this utility model, an elastic support component 4 is used as a medium. Only a simple deformation and fixing operation is needed to complete the transformation of the support state, which greatly improves the construction efficiency. In contrast, traditional temporary support columns require more time to solidify, which does not meet the construction requirements.

[0024] This utility model uses an upper fixing component 3 and a lower fixing component 5 as the basic components for achieving support. The elastic support component utilizes its own deformation capacity to cope with ground subsidence, thereby adapting to the construction difficulties existing in the underground space of historical buildings. On this basis, by setting an extension support component 2 to extend the length of the temporary support column, a stable bearing state is maintained, and the length can be temporarily increased according to the construction progress to ensure that it plays a supporting role at all times.

[0025] Furthermore, the elastic support assembly 4 includes a movable tube 41, a first return spring 42, and a first abutment 43, and the lower fixing assembly 5 includes a lower fixing member 51, a lower fixing tube 52, and a lower return spring 53. The movable tube 41 is provided with a first receiving groove 411 for accommodating the lower fixing tube 52, and the lower fixing tube 52 is provided with a lower receiving groove 54. The first abutment 43 is slidably connected to the lower receiving groove 54 and is fixedly connected to the movable tube 41. The lower fixing member 51 is fixedly connected to the lower fixing tube 52. The two ends of the lower return spring 53 are fixedly connected to the lower fixing member 51 and the movable tube 41, respectively. The two ends of the first return spring 42 are fixedly connected to the inner wall of the lower fixing tube 52 and the first receiving groove 411, respectively.

[0026] When both the lower return spring 53 and the first return spring 42 are in a compressed state, the moving tube 41 abuts against the lower fixed member 51.

[0027] The main elastic support medium of the elastic support assembly 4 and the lower fixing assembly 5 is generated by the combined action of the lower return spring 53 and the first return spring 42. Under normal conditions, the lower return spring 53 and the first return spring 42 are both in a compressed state. In this state, the lower return spring 53 and the first return spring 42 themselves also have support capacity, while the main support pressure is borne by the moving tube 41 and the lower fixing component 51, so the lower return spring 53 and the first return spring 42 will not be damaged.

[0028] When the ground sinks, the lower fixing component 5 will move under the action of gravity and friction. At this time, there will be enough space for the lower reset spring 53 and the first reset spring 42 to reset. The lower reset spring 53 and the first reset spring 42 can still provide support force when resetting, thereby increasing the length of the temporary support column while ensuring a certain load-bearing capacity.

[0029] Furthermore, the lower fixing component 5 also includes a plug rod 55, which is fixedly connected to the lower fixing member 51.

[0030] Since the lower fixing component 5 directly contacts the ground, and the ground will sink during construction, in order to prevent the temporary support column from tilting to the side and to increase friction, a plug-in rod 55 is set. When in use, the plug-in rod 55 will be directly inserted into the ground to strengthen the connection between the temporary support column and the ground.

[0031] Furthermore, the elastic support assembly 4 also includes a second return spring 44 and a second abutment 45. The upper fixing assembly 3 includes an upper fixing member 31, an upper fixing tube 32 and an upper return spring 33. The moving tube 41 is provided with a second receiving groove 412 for accommodating the upper fixing tube 32. The upper fixing tube 32 is provided with an upper receiving groove 34. The second abutment 45 is slidably connected to the upper receiving groove 34. The second abutment 45 is fixedly connected to the moving tube 41. The upper fixing member 31 is fixedly connected to the upper fixing tube 32. The two ends of the upper return spring 33 are fixedly connected to the upper fixing member 31 and the moving tube 41 respectively. The two ends of the second return spring 44 are fixedly connected to the inner walls of the upper fixing tube 32 and the second receiving groove 412 respectively.

[0032] When the moving tube 41 abuts against the lower fixed member 51, both the upper return spring 33 and the second return spring 44 are in a compressed state.

[0033] Furthermore, the elastic coefficient of the upper return spring 33 is the same as that of the lower return spring 53, and the elastic coefficient of the first return spring 42 is the same as that of the second return spring 44.

[0034] The structure and principle of the upper fixing component 3 are the same as those of the lower fixing component 5. It is used in the lower fixing component 5 because, when the temporary support column is stretched, the lower fixing component 51 separates from the moving tube 41. Therefore, the part where the moving tube 41 contacts the lower fixing tube 52 is prone to lateral tilting, and the force distribution is uneven. Thus, the upper fixing component 3 is installed to redistribute the force as evenly as possible, reducing the possibility of lateral tilting and damage.

[0035] Furthermore, by setting the elastic coefficients of the upper return spring 33 and the lower return spring 53 to be the same, and by setting the elastic coefficients of the first return spring 42 and the second return spring 44 to be the same, the moving tube 41 can be kept in the middle position between the upper fixed tube 32 and the lower fixed tube 52 as much as possible, so that the contact area between the moving tube 41 and the upper fixed tube 32 and the contact area between the moving tube 41 and the lower fixed tube 52 are as similar as possible, thus achieving a better balance effect.

[0036] Furthermore, the extension support assembly 2 includes a first half-ring 21, a second half-ring 22, and a bolt 23. The first half-ring 21 abuts against the second half-ring 22 to form a ring. The bolt 23 is detachably connected to both the first half-ring 21 and the second half-ring 22.

[0037] Furthermore, the extension support assembly 2 also includes a connecting pipe 24 and a third contact member 25. The positioning post 1 is provided with a contact groove 11. The connecting pipe 24 is fixedly connected to the first half ring 21 and is used to connect the inside and outside of the first half ring 21. The third contact member 25 is slidably connected to the connecting pipe 24 and is accommodated in the contact groove 11.

[0038] When the third contact member 25 is accommodated in the contact groove 11, the third contact member 25 abuts against the inner wall of the connecting pipe 24 and restricts the movement of the first half ring 21.

[0039] Furthermore, the extension support assembly 2 also includes a threaded rod 26, and the connecting pipe 24 is provided with an internal thread 27. The threaded rod 26 is threadedly connected to the internal thread 27 and abuts against the third contact member 25.

[0040] Since the extension support assembly 2 is an auxiliary support component used for filling, during installation, it is necessary to first use a device such as a jack to recompress the four springs in order to provide enough space for the first half ring 21 and the second half ring 22 to be installed. For ease of installation, the first half ring 21 and the second half ring 22 are abutted to form a ring, and the pressure is directly applied to the upper and lower ends of the first half ring 21 and the second half ring 22. Therefore, bolts 23 can be used to connect the first half ring 21 and the second half ring 22 together from the side.

[0041] In addition, to prevent the first half-ring 21 and the second half-ring 22 from rotating or moving after installation, a third abutment 25 is used to fix the relative position of the positioning post 1 and the first half-ring 21. Similarly, to prevent the third abutment 25 from dislodging, a threaded rod 26 and an internal thread 27 are provided to enhance the fixing effect.

[0042] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A temporary support column for an underground space of a historic building, characterized by, The utility model provides a kind of underground space support structure, including positioning column, extension support component, upper fixed component, elastic support component and lower fixed component, extension support component, upper fixed component, elastic support component and lower fixed component are sequentially connected to positioning column, extension support component and upper fixed component abut, upper fixed component and elastic support component slidingly connect, lower fixed component and elastic support component slidingly connect. When the ground of underground space subsides, lower fixed component moves down, and elastic support component deforms.

2. The historic building underground space temporary support column of claim 1, wherein, The elastic support component includes a moving tube, a first return spring, and a first contact piece. The lower fixed component includes a lower fixed piece, a lower fixed tube, and a lower return spring. The moving tube is provided with a first accommodating groove for accommodating the lower fixed tube. The lower fixed tube is provided with a lower accommodating groove. The first contact piece is slidingly connected to the lower accommodating groove. The first contact piece is fixedly connected to the moving tube. The lower fixed piece is fixedly connected to the lower fixed tube. The two ends of the lower return spring are fixedly connected to the lower fixed piece and the moving tube, respectively. The two ends of the first return spring are fixedly connected to the lower fixed tube and the inner wall of the first accommodating groove, respectively. When the lower return spring and the first return spring are both in a compressed state, the moving tube abuts against the lower fixed piece.

3. The historic building underground space temporary support column of claim 2, wherein, The lower fixed component further includes a plug-in rod, which is fixedly connected to the lower fixed piece.

4. The historic building underground space temporary support column of claim 2, wherein, The elastic support component further includes a second return spring and a second contact piece. The upper fixed component includes an upper fixed piece, an upper fixed tube, and an upper return spring. The moving tube is provided with a second accommodating groove for accommodating the upper fixed tube. The upper fixed tube is provided with an upper accommodating groove. The second contact piece is slidingly connected to the upper accommodating groove. The second contact piece is fixedly connected to the moving tube. The upper fixed piece is fixedly connected to the upper fixed tube. The two ends of the upper return spring are fixedly connected to the upper fixed piece and the moving tube, respectively. The two ends of the second return spring are fixedly connected to the upper fixed tube and the inner wall of the second accommodating groove, respectively. When the moving tube abuts against the lower fixed piece, the upper return spring and the second return spring are both in a compressed state.

5. The historic building underground space temporary support column of claim 4, wherein, The elastic coefficient of the upper return spring is the same as that of the lower return spring. The elastic coefficient of the first return spring is the same as that of the second return spring.

6. The historic building underground space temporary support column of claim 5, wherein, The extension support component includes a first half ring, a second half ring, and a bolt. The first half ring abuts against the second half ring to form a ring shape. The bolt is detachably connected to the first half ring and the second half ring.

7. The historic building underground space temporary support column of claim 6, wherein, The extension support component further includes a connecting tube and a third contact piece. The positioning column is provided with a contact groove. The connecting tube is fixedly connected to the first half ring and is used to communicate the inside and outside of the first half ring. The third contact piece is slidingly connected to the connecting tube and is accommodated in the contact groove. When the third contact piece is accommodated in the contact groove, the third contact piece abuts against the inner wall of the connecting tube and restricts the movement of the first half ring.

8. The historic building underground space temporary support column of claim 7, wherein, The extension support component further includes a threaded rod. The connecting tube is provided with an internal thread. The threaded rod is threadedly connected to the internal thread and abuts against the third contact piece.

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