Temperature stress release structure suitable for super-long structure
By setting up double columns and lowering plate areas in the middle of the ultra-long structure, the height difference is used to release the concrete temperature stress, the problem of difficult to control the concrete temperature stress in the ultra-long structure is solved, and the effect of reducing cracks and improving the building usage space is achieved.
Patent Information
- Application Number
- CN202421656524.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-12
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-07-12
AI Technical Summary
In ultra-long structures, due to the inappropriate setting of temperature post-pouring tape, the temperature stress of concrete is difficult to control, which may lead to cracks caused by temperature deformation of concrete.
A temperature stress relief structure is adopted. By setting up a double column in the middle of the ultra-long structure and a lowering area between the two columns, the temperature stress of the concrete is released by using the height difference caused by the high side and low middle of the two columns.
Effectively reduce the adverse impact of concrete temperature stress on the structure, control cracks caused by temperature deformation of concrete, and improve the building use space.
Smart Images
Figure CN222796832U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of building structures, and in particular relates to a temperature stress release structure suitable for super-long structures. Background Art
[0002] During the solidification and hardening process, the volume of newly poured concrete is unstable, and the thermal expansion and contraction are obvious. Large temperature stress will be generated inside the structure. When its deformation is constrained, it will cause cracks inside the components in severe cases. During construction, the deformation of concrete caused by temperature is released by setting a temperature post-casting belt to reduce the impact of concrete temperature stress. Generally, a seam with a width of 700 to 1000 mm is set every 30 to 40 meters, and the steel bars in the seam are overlapped or straight-through with bending.
[0003] In super-long structures, when there is a large-span structure in the middle of the structural plane, temperature post-casting strips should not be set for the sake of structural stress safety, or continuous pouring of concrete is required due to construction technology, construction period and other requirements. At this time, the temperature stress of the concrete has a greater impact on the structure, and it is difficult to control the occurrence and development of cracks.
[0004] It can be seen that when the temperature post-casting strip is not suitable for ultra-long structures, it is difficult to reduce the impact of concrete temperature stress on the structure, which may cause cracks in the concrete caused by temperature deformation. Therefore, it is necessary to propose a more reasonable technical solution to solve the technical problems existing in the prior art. Utility Model Content
[0005] The purpose of the utility model is to overcome the problems of the prior art and disclose a temperature stress release structure suitable for super-long structures. The temperature stress release structure of the utility model releases temperature stress by utilizing the height difference caused by the high sides and low middle of double columns.
[0006] The purpose of the utility model is achieved through the following technical solutions:
[0007] A temperature stress release structure suitable for an ultra-long structure, the temperature stress release structure comprising: a first main body structure, a second main body structure and a drop plate; the drop plate is arranged between the first main body structure and the second main body structure, and is arranged flush with the first main body structure and the second main body structure, and the height of the drop plate is lower than the plane height of the first main body structure and the second main body structure.
[0008] According to a preferred embodiment, the height difference between the drop plate and the first main structure and the second main structure is 500 mm to 800 mm.
[0009] According to a preferred embodiment, the thickness of the drop plate body is greater than 250 mm, and the width of the drop plate is 700 mm to 1000 mm.
[0010] According to a preferred embodiment, the first main structure and the second main structure are supported by a plurality of frame columns respectively, and a plurality of corresponding double-column structures are respectively provided on both sides of the corresponding trough of the drop plate, and a drop plate beam is provided between the two columns of the double-column structure.
[0011] According to a preferred embodiment, the plate lowering beam is arranged perpendicular to the extension direction of the corresponding trough body of the plate lowering.
[0012] According to a preferred embodiment, frame columns are arranged every 6m to 12m in the extension direction of the drop plate corresponding to the trough body.
[0013] According to a preferred embodiment, the first main structure and the second main structure are respectively provided with frame beams at positions close to the edges of the troughs corresponding to the drop plates.
[0014] According to a preferred embodiment, the frame beam is arranged on two rows of frame columns, parallel to the groove direction of the drop plate, and holds the drop plate.
[0015] According to a preferred embodiment, the first main structure and the second main structure are in the form of a frame or a frame-shear structure.
[0016] According to a preferred embodiment, the beam and slab arrangement of the first main structure and the second main structure is a cross beam, a double secondary beam, a single secondary beam or a large slab system.
[0017] According to a preferred embodiment, the drop plates are arranged in parallel and spaced apart between a plurality of first main structures and second main structures, with a parallel spacing of 30m to 40m.
[0018] The temperature stress release structure of the utility model is applied in scenarios where it is inconvenient to set a temperature post-casting strip due to structural force safety and building function requirements, or in ultra-long structures where continuous concrete pouring is required due to construction technology, construction period, etc. The temperature stress release structure provided in the utility model can release the temperature stress of concrete, reduce its adverse effects, and control the cracks caused by temperature deformation of concrete.
[0019] Furthermore, the temperature stress release structure disclosed in the utility model is not limited to the construction method after the main concrete pouring is completed. The lowering area can be closed with a prefabricated cover plate or filled with foam concrete 2 months after the main construction, and the groove formed can also be used as a water interception ditch for water supply and drainage. The space below the double columns can be used for equipment pipe routing, thereby increasing the building use space of adjacent spans.
[0020] The above-mentioned main scheme of the utility model and its further optional schemes can be freely combined to form multiple schemes, all of which are schemes that can be adopted and claimed for protection by the utility model. After understanding the scheme of the utility model, those skilled in the art can understand that there are many combinations based on the existing technology and common knowledge, all of which are technical schemes to be protected by the utility model, and they are not exhaustively listed here.
[0021] Beneficial effects of the utility model:
[0022] The utility model discloses a temperature stress release structure, in which double columns are arranged in the middle of the super-long structure, and a drop plate area is arranged between the double columns. The height difference caused by the high sides and the low middle of the double columns is utilized to release the temperature stress of the concrete, reduce the adverse effects thereof, and control the cracks caused by the temperature deformation of the concrete.
[0023] In actual implementation, the drop-off area can be closed with prefabricated cover plates or filled with foam concrete 2 months after the main construction. The groove formed can also be used as a water interception ditch for water supply and drainage. The space below the double columns can be used for equipment pipe routing, increasing the building use space of adjacent spans. The space layout is more flexible and the construction is simpler. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 This is a schematic diagram of the temperature stress release structure of the utility model;
[0025] Figure 2 This is a schematic diagram of the overall structure of the temperature stress release structure of the utility model;
[0026] Figure 3 It is a plan view of the lowering plate area in the temperature stress release structure of the utility model;
[0027] Figure 4 yes Figure 3 AA section view of the mid-drop plate area;
[0028] Figure 5 yes Figure 3 BB profile of the mid-drop plate area;
[0029] Among them, 1-the first main structure, 2-the second main structure, 3-the frame column, 4-the frame beam, 5-the drop plate beam, 6-the drop plate. DETAILED DESCRIPTION
[0030] The following describes the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.
[0031] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.
[0032] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.
[0033] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0034] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0035] In addition, the present utility model should point out that, in the present utility model, if the specific structure, connection relationship, position relationship, power source relationship, etc. are not specifically written out, the structure, connection relationship, position relationship, power source relationship, etc. involved in the present utility model are all known by technical personnel in this field on the basis of existing technology without creative work.
[0036] The utility model discloses a temperature stress release structure suitable for an ultra-long structure, wherein the temperature stress release structure comprises: a first main structure 1, a second main structure 2, a frame column 3, a frame beam 4, a drop plate beam 5 and a drop plate 6.
[0037] The lowering plate 6 is disposed between the first main structure 1 and the second main structure 2 , and is flush with the first main structure 1 and the second main structure 2 . The height of the lowering plate 6 is lower than the plane height of the first main structure 1 and the second main structure 2 .
[0038] Preferably, the height difference between the lowering plate 6 and the first main structure 1 and the second main structure 2 is 500 mm to 800 mm. The thickness of the lowering plate 6 is greater than 250 mm, and the width of the lowering plate 6 is 700 mm to 1000 mm.
[0039] Preferably, the first main structure 1 and the second main structure 2 are supported by a plurality of frame columns 3 respectively, and a plurality of corresponding double-column structures are respectively provided on both sides of the drop plate 6 corresponding to the trough body, and a drop plate beam 5 is provided between the two columns in the double-column structure.
[0040] Furthermore, the lowering plate beam 5 and the lowering plate 6 are arranged perpendicularly to the extension direction of the corresponding trough body.
[0041] Furthermore, frame columns 3 are provided every 6 m to 12 m in the extending direction of the drop plate 6 corresponding to the trough body.
[0042] Preferably, the first main structure 1 and the second main structure 2 are respectively provided with frame beams 4 at positions close to the edge of the trough corresponding to the drop plate 6 .
[0043] Preferably, the frame beams 4 are arranged on two rows of frame columns 3 , parallel to the groove direction of the drop plate 6 , and hold the drop plate 6 .
[0044] Preferably, the first main structure 1 and the second main structure 2 are in the form of a frame or a frame-shear structure.
[0045] Furthermore, the beam and slab arrangement of the first main structure 1 and the second main structure 2 is a cross beam, a double beam, a single beam or a large slab system.
[0046] Furthermore, the drop plates are arranged in parallel and spaced apart between a plurality of first main structures and second main structures, with a parallel spacing of 30m to 40m.
[0047] The temperature stress release structure of the utility model is applied in scenarios where it is inconvenient to set a temperature post-casting strip due to structural force safety and building function requirements, or in ultra-long structures where continuous concrete pouring is required due to construction technology, construction period, etc. The temperature stress release structure provided in the utility model can release the temperature stress of concrete, reduce its adverse effects, and control the cracks caused by temperature deformation of concrete.
[0048] Furthermore, the temperature stress release structure disclosed in the utility model is not limited to the construction method after the main concrete pouring is completed. The lowering area can be closed with a prefabricated cover plate or filled with foam concrete 2 months after the main construction, and the groove formed can also be used as a water interception ditch for water supply and drainage. The space below the double columns can be used for equipment pipe routing, thereby increasing the building use space of adjacent spans.
[0049] Example
[0050] This embodiment provides a temperature stress release structure suitable for super-long structures, which aims to release the temperature stress of concrete by utilizing the height difference caused by the high sides and low middle of the double columns, reduce the adverse effects caused by it, and control the cracks caused by temperature deformation of the concrete.
[0051] Specifically, this embodiment includes left and right main structures, frame columns 3, frame beams 4, drop beams 5, and drop plates 6. Preferably, the structural members in this embodiment are made of concrete, for example, C30 grade concrete.
[0052] In this embodiment, the cross-sections of the frame column 3, frame beam 4, secondary beam and drop beam 5 are all rectangular, the cross-section of the frame column 3 is 600mm*600mm, the cross-sections of the frame beam 4 and drop beam 5 are 300mm*800mm. The net distance between the two columns is L=700-1000mm, and the thickness of the drop plate 6 is 250mm.
[0053] like Figures 3 to 5 As shown, in order to realize the drop plate 6 area formed by high sides and low middle of double columns, the height difference of the drop plate 6 is H=500~800mm, and the specific height of the drop plate 6 can be determined according to the actual engineering needs.
[0054] Specifically, the construction method after the main concrete pouring is completed is not limited to a single method. The drop plate 6 area can be closed with a prefabricated cover plate or filled with foam concrete 2 months after the main construction. The groove formed can also be used as a water interception ditch for water supply and drainage. The space under the double columns can be used for equipment pipe routing, increasing the building use space of adjacent spans.
[0055] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A temperature stress release structure suitable for ultra-long structures, characterized in that: The temperature stress release structure comprises: a first main body structure (1), a second main body structure (2) and a drop plate (6); The lowering plate (6) is arranged between the first main body structure (1) and the second main body structure (2), and is arranged flush with the first main body structure (1) and the second main body structure (2), and the height of the lowering plate (6) is lower than the plane height of the first main body structure (1) and the second main body structure (2).
2. The temperature stress release structure according to claim 1, characterized in that: The height difference between the drop plate (6) and the first main structure (1) and the second main structure (2) is 500 mm to 800 mm.
3. The temperature stress release structure according to claim 1, characterized in that: The thickness of the lowering plate (6) is greater than 250 mm, and the width of the lowering plate (6) is 700 mm to 1000 mm.
4. The temperature stress release structure according to claim 1, characterized in that: The first main structure (1) and the second main structure (2) are respectively supported by a plurality of frame columns (3). A plurality of mutually corresponding double-column structures are respectively arranged on both sides of the corresponding trough body of the lowering plate (6), and a lowering plate beam (5) is arranged between the two columns in the double-column structure.
5. The temperature stress release structure according to claim 4, characterized in that: The lowering plate beam (5) and the lowering plate (6) are arranged perpendicularly to the extension direction of the corresponding trough body.
6. The temperature stress release structure according to claim 4, characterized in that: Frame columns (3) are arranged every 6m to 12m in the extending direction of the drop plate (6) corresponding to the trough body.
7. The temperature stress release structure according to claim 1, characterized in that: The first main structure (1) and the second main structure (2) are respectively provided with frame beams (4) at positions close to the edges of the trough bodies corresponding to the drop plates (6).
8. The temperature stress release structure according to claim 7, characterized in that: The frame beam (4) is arranged on two rows of frame columns (3), parallel to the groove direction of the drop plate (6), and holds the drop plate (6).
9. The temperature stress release structure according to claim 1, characterized in that: The first main structure (1) and the second main structure (2) are in the form of a frame or a frame-shear structure; The beam and slab arrangement of the first main structure (1) and the second main structure (2) is a cross-beam, a double secondary beam, a single secondary beam or a large slab system.
10. The temperature stress release structure according to claim 1, characterized in that: The drop plates (6) are arranged in parallel and spaced apart between a plurality of the first main structures (1) and the second main structures (2), and the parallel spacing of the drop plates (6) is 30m to 40m.