Temperature stress release structure and processing method thereof

Abstract

The invention provides a temperature stress release structure and a processing method thereof, the temperature stress release structure is applied to an annular structure, and the temperature stress release structure comprises a release unit which comprises a first radial frame beam arranged along the radial direction of the annular structure; the floor slab is located on the upper portion of the first radial frame beam, the portion, on the upper portion of the first radial frame beam, of the floor slab is provided with an expansion and contraction opening part in the radial direction of the annular structure, and micro-moving layers are arranged between the portions, on the two sides of the expansion and contraction opening part, of the first radial frame beam and the floor slab; and the elastic expansion piece is filled in the expansion and contraction opening part. According to the structure, axial stress deformation of the first radial frame beam and the floor slab can be released, the annular structure is divided into different temperature sections on the premise that the overall attractiveness and the use function of a building are guaranteed, cracks caused by temperature and shrinkage deformation constraint can be effectively prevented or controlled, meanwhile, the stress performance of the overall structure is not affected, and the service life of the building is prolonged. The characteristic of continuous force transmission of an ultra-long structure can be met, structural joints do not need to be added, the project construction period is shortened, and the construction efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of super-long building structures, and particularly relates to a temperature stress release structure and a processing method thereof. Background Art

[0002] With the popularization of national fitness, a large number of super-long concrete structures such as stadiums have been built in our country. Temperature action and concrete shrinkage action are likely to produce constrained deformation in super-long concrete structures, resulting in large tensile stresses and cracking of super-long concrete structures. At present, the general methods to solve the cracking of super-long concrete structures are to set post-cast strips to release the early shrinkage deformation of concrete and set expansion strengthening belts to offset the temperature shrinkage deformation. Among them, the post-cast strip can only release the shrinkage deformation of concrete, cannot solve the temperature deformation, and cannot be cast in one time, and the closing time is too long; due to the limited ability of the expansion strengthening belt to resist shrinkage deformation, this method is not applicable to super-long structures with too large shrinkage deformation. Summary of the Invention

[0003] In view of this, the purpose of the present application is to provide a temperature stress release structure and a processing method thereof, so as to solve the problems in the prior art that the post-cast strip cannot be cast in one time, the closing time is long, and the expansion strengthening belt is not applicable to super-long structures with too large shrinkage deformation.

[0004] In a first aspect, the present application provides a temperature stress release structure applied to an annular structure. The temperature stress release structure includes:

[0005] A release unit, including:

[0006] A first radial frame beam, which is arranged along the radial direction of the annular structure;

[0007] A floor slab, located above the first radial frame beam. A shrinkage and expansion opening is arranged along the radial direction of the annular structure on the floor slab above the first radial frame beam. Micro-displacement layers are arranged between the first radial frame beams on both sides of the shrinkage and expansion opening and the floor slab.

[0008] An elastic expansion member, which is filled in the shrinkage and expansion opening.

[0009] In an embodiment, a plurality of circumferential secondary beams are arranged along the circumferential direction of the annular structure. Each circumferential secondary beam is located on both sides of the first radial frame beam. The top of the first radial frame beam is lower than the tops of the circumferential secondary beams on both sides of the first radial frame beam. A heightening part is arranged at the top of the first radial frame beam. The top elevation of the heightening part is the same as the top elevation of the circumferential secondary beams, and the top elevation of each circumferential secondary beam is the same as the top elevation of the floor slab.

[0010] In one embodiment, the heightening portion includes a plurality of U-shaped stirrups fixed to the top of the first radial frame beam. The plurality of U-shaped stirrups are arranged in sequence along the radial direction of the annular structure. Longitudinal bars are tied along the radial direction of the inner sides of the upper portions of the plurality of U-shaped stirrups. There are a plurality of the longitudinal bars. Concrete filled between the plurality of U-shaped stirrups and the plurality of longitudinal bars is further included.

[0011] In one embodiment, a plurality of first steel bars are arranged on the upper portion of the circumferential secondary beam on one side of the first radial frame beam, and a plurality of second steel bars are arranged on the upper portion of the circumferential secondary beam on the other side of the first radial frame beam. The adjacent ends of each first steel bar and each second steel bar extend to the lower portions of the plurality of longitudinal bars within the heightening portion and are bent and anchored downward and extend into the first radial frame beam; and / or

[0012] The lower portion of each U-shaped stirrup extends into the first radial frame beam; and / or

[0013] A plurality of third steel bars are arranged on the lower portion of the circumferential secondary beam on one side of the first radial frame beam, and a plurality of fourth steel bars are arranged on the lower portion of the circumferential secondary beam on the other side of the first radial frame beam. The adjacent ends of each third steel bar and each fourth steel bar extend into the first radial frame beam and are bent and anchored upward.

[0014] In one embodiment, a plurality of second radial frame beams are arranged on both sides of the first radial frame beam along the radial direction of the annular structure; and / or

[0015] Corbels are arranged on both sides of the first radial frame beam along the radial direction of the annular structure. The micro-displacement layer extends to the upper portion of the corbels; and / or

[0016] The micro-displacement layer includes a first felt located at the top of the first radial frame beam, a second felt located at the bottom of the corresponding floor slab, and a graphite powder layer located between the first felt and the second felt; and / or

[0017] The elastic expansion member includes a polystyrene board.

[0018] In one embodiment, the temperature stress release structure includes at least two of the release units, and the at least two release units are arranged in sequence along the circumferential direction of the annular structure.

[0019] Second, an embodiment of the present invention provides a processing method for a temperature stress release structure, including:

[0020] S01. Install the support formwork for the first radial frame beam and the floor slab at the expansion and contraction opening between the reserved floor slabs above the first radial frame beam;

[0021] S02. Lay a micro-displacement layer between the first radial frame beams on both sides of the expansion and contraction opening and the floor slab;

[0022] S03. Pour concrete;

[0023] S04. Remove the support formwork of the first radial frame beams and the floor slab;

[0024] S05. Fill the expansion and contraction opening with an elastic expansion member.

[0025] In one embodiment, install the support formwork of the first radial frame beams, the circumferential secondary beams and the floor slab; and / or

[0026] Along the radial direction of the annular structure, position the positions of a plurality of second radial frame beams on both sides of the first radial frame beam, and install the support formwork of the second radial frame beams; and / or

[0027] Bind corbel steel bars at the first radial frame beam of the expansion and contraction opening, lay a first bituminous felt on the top of the corbel steel bars, lay a second bituminous felt corresponding to the bottom of the floor slab above the corbel steel bars, and lay a graphite powder layer between the first bituminous felt and the second bituminous felt to form a micro-displacement layer; and / or

[0028] Fill the expansion and contraction opening with polystyrene boards.

[0029] In one embodiment, the method for fixing the steel bars in the circumferential secondary beams includes:

[0030] S011. Provide a plurality of first steel bars and a plurality of second steel bars at the upper part of the circumferential secondary beams;

[0031] S012. Bind the first steel bars and the corresponding second steel bars on both sides above the first radial frame beam. The adjacent ends of the first steel bars and the second steel bars extend towards each other above the first radial frame beam and bend downwards and extend into the first radial frame beam;

[0032] S013. Provide a plurality of third steel bars and a plurality of fourth steel bars at the lower part of the circumferential secondary beams;

[0033] S014. Bind the third steel bars and the corresponding fourth steel bars on both sides of the middle and lower parts of the first radial frame beam. The adjacent ends of the third steel bars and the fourth steel bars extend towards each other in the middle and lower parts of the first radial frame beam and bend upwards and anchor in the first radial frame beam.

[0034] In one embodiment, the method for binding the steel bars at the top of the first radial frame beam includes:

[0035] S0111. Provide a plurality of U-shaped stirrups and a plurality of longitudinal bars;

[0036] S0112. At the top of the first radial frame beam, a plurality of U-shaped stirrups are sequentially tied along the radial direction of the annular structure, and a plurality of longitudinal bars are sequentially tied along the circumferential direction of the annular structure on the inner sides of the upper parts of the plurality of U-shaped stirrups;

[0037] Among them, the lower part of each U-shaped stirrup extends into the first radial frame beam;

[0038] The first steel bar and the corresponding second steel bar above the first radial frame beam are both located below the longitudinal bars.

[0039] In this application, the floor slab is discontinuous at the expansion and contraction opening, forming a free end. A micro-displacement layer is formed between the floor slabs on both sides of the expansion and contraction opening at the upper part of the first radial frame beam and the first radial frame beam. The expansion and contraction opening is filled with an elastic expansion member to form a flexible buffer layer, meeting the requirements of the axial relative deformation of the temperature stress release structural floor slab. This application provides a structure that replaces the post-cast strip in a super-long structure. The concrete structure can be cast in one piece, and can actively release the temperature and shrinkage stresses of the concrete structure; the temperature stress release structure of this application can release the axial stress deformation of the first radial frame beam and the floor slab. On the premise of ensuring the overall beauty and service function of the building, the annular structure can be divided into different temperature sections, which can effectively prevent or control the cracks caused by temperature and shrinkage deformation constraints, and at the same time does not affect the mechanical properties of the overall structure. By setting the temperature stress release structure, there is no need to increase the structural joint, which can meet the characteristics of continuous force transmission of the super-long structure. At the same time, in terms of the construction method, the construction is convenient, the processing process is simple, the project duration is shortened, and the construction efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions of the embodiments of this application, the drawings of the embodiments will be briefly introduced below. Obviously, the drawings described below only relate to some embodiments of this application and do not limit this application, where:

[0041] Figure 1 is a three-dimensional view of the component at the intersection of the floor slab and the first radial frame beam in the embodiment of this application;

[0042] Figure 2 is a sectional view of the component at the intersection of the floor slab and the first radial frame beam in the embodiment of this application;

[0043] Figure 3 is a three-dimensional view of the component at the intersection of the circumferential secondary beam and the first radial frame beam in the embodiment of this application;

[0044] Figure 4 is a three-dimensional view of the steel bars at the intersection of the circumferential secondary beam and the first radial frame beam in the embodiment of this application;

[0045] Figure 5 is a sectional view of the component at the intersection of the circumferential secondary beam and the first radial frame beam in the embodiment of this application;

[0046] Figure 6 For the embodiment of the present application Figure 5 Laying-out drawings of the first steel bar, the second steel bar, the third steel bar and the fourth steel bar

[0047] Figure 7 For the drawing of the embodiment of the present application Figure 5 Laying-out drawings of the portal stirrups and longitudinal bars

[0048] Figure 8 Plan view of a partial circumferential structure of the embodiment of the present application

[0049] Explanation of reference numerals

[0050] 1 - First radial frame beam, 2 - Floor slab, 3 - Building layer, 4 - Elastic expansion member, 5 - Corbel, 6 - Micro-displacement layer, 7 - Circumferential secondary beam, 8 - First steel bar, 9 - Second steel bar, 10 - Third steel bar, 11 - Fourth steel bar, 12 - Portal stirrup, 13 - Longitudinal bar, 14 - Heightening part, 15 - Release unit, 16 - Second radial frame beam Detailed implementation manners

[0051] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present application

[0052] In the description of the present application, it should be understood that the orientation or positional relationship indicated by terms such as "length", "width", "thickness", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a unique orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present application. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or including the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more features. In the description of the present application, "a plurality" means two or more, unless otherwise specifically defined

[0053] In the application, the term "exemplary" is used to mean "serving as an example, illustration, or instance". Any embodiment described as "exemplary" in this application is not necessarily to be construed as more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to make and use this application. In the following description, details are set forth for purposes of explanation. It should be understood that those of ordinary skill in the art can recognize that this application can be implemented without these specific details. In other instances, well-known structures and processes are not elaborated in detail to avoid obscuring the description of this application with unnecessary details. Therefore, this application is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles disclosed herein.

[0054] For ease of understanding the solution of this application, the spline curves and arrows used for the reference numerals in the drawings are described herein: For the components indicated by the spline curves without arrows, they are solid components, that is, components having a solid structure; for the components indicated by the spline curves with arrows, they are virtual components, that is, components without a solid structure.

[0055] Please refer to Figure 1 and Figure 2 , an embodiment of this application provides a temperature stress release structure, which is applied to an annular structure. The temperature stress release structure includes:

[0056] A release unit 15, including:

[0057] A first radial frame beam 1, which is arranged along the radial direction of the annular structure;

[0058] A floor slab 2, which is located above the first radial frame beam 1. The floor slab 2 above the first radial frame beam 1 is provided with expansion and contraction openings along the radial direction of the annular structure. Micro-movement layers 6 are arranged between the first radial frame beam 1 and the floor slab 2 on both sides of the expansion and contraction openings;

[0059] An elastic expansion member 4, which is filled in the expansion and contraction openings.

[0060] It can be understood that the annular structure is an extra-long structure.

[0061] In some embodiments, the thickness of the floor slab 2 is 130 mm to 140 mm, and for example, it can be 130 mm, 131 mm, 132 mm, 133 mm, 134 mm, 135 mm, 136 mm, 137 mm, 138 mm, 139 mm, 140 mm, etc.

[0062] In some embodiments, the floor slab 2 is composed of concrete, upper layer bidirectional steel bars, and lower layer bidirectional.

[0063] In some embodiments, the width of the expansion and contraction opening along the circumferential direction of the annular structure is 40 mm to 60 mm, and for example, it can be 40 mm, 42 mm, 45 mm, 48 mm, 50 mm, 52 mm, 54 mm, 56 mm, 58 mm, 60 mm, etc.

[0064] In some embodiments, the elastic expansion member 4 within the expansion and contraction opening extends above the expansion and contraction opening, and the height of the elastic expansion member 4 is at the same elevation position as the building layer 3. It can be understood that the elastic expansion member 4 within the expansion and contraction opening is filled densely.

[0065] In some embodiments, the elastic expansion member 4 includes a polystyrene board. The polystyrene board is not only a flexible material but also has a high compressive strength, can withstand a large pressure without being easily deformed, ensuring the stability and durability of the structure. At the same time, the polystyrene board also has excellent heat insulation performance, and its closed-cell structure can effectively prevent the transfer of heat, avoiding the generation of thermal bridges, thereby improving the energy efficiency of the building and reducing energy consumption.

[0066] In this application, the floor slab 2 is discontinuous at the expansion and contraction opening, forming a free end. A micro-displacement layer 6 is formed between the floor slabs 2 on both sides of the expansion and contraction opening above the first radial frame beam 1 and the first radial frame beam 1. The elastic expansion member 4 is filled within the expansion and contraction opening to form a flexible buffer layer, meeting the requirements for the axial relative deformation of the temperature stress release structure floor slab 2. This application provides a structure that replaces the post-cast strip in an extra-long structure. The concrete structure can be cast in one piece, and can actively release the temperature and shrinkage stresses of the concrete structure. The temperature stress release structure of this application can release the axial stress deformation of the first radial frame beam 1 and the floor slab 2. On the premise of ensuring the overall aesthetics and service functions of the building, the annular structure can be divided into different temperature sections, which can effectively prevent or control the cracks generated due to temperature and shrinkage deformation constraints, and at the same time does not affect the mechanical properties of the overall structure. By setting the temperature stress release structure, there is no need to increase the structural joint, which can meet the characteristics of continuous force transmission of the extra-long structure. At the same time, in terms of the construction method, the construction is convenient, the processing process is simple, and the construction efficiency is improved.

[0067] Please refer to Figure 3 , in some embodiments, a plurality of circumferential secondary beams 7 are arranged along the circumferential direction of the annular structure. Each circumferential secondary beam 7 is located on both sides of the first radial frame beam 1. The top of the first radial frame beam 1 is lower than the tops of the circumferential secondary beams 7 on both sides of the first radial frame beam 1. A heightening part 14 is provided at the top of the first radial frame beam 1, and the top elevation of the heightening part 14 is the same as the top elevation of the circumferential secondary beams 7, and the top elevation of each circumferential secondary beam 7 is the same as the top elevation of the floor slab 2.

[0068] It can be understood that each circumferential secondary beam 7 is located in the upper middle part on both sides of the first radial frame beam 1 and extends above the first radial frame beam 1. Thus, the top elevation of each circumferential secondary beam 7 is the same as the top elevation of the floor slab 2.

[0069] It can also be understood that the purpose of setting the heightening part 14 is to make the beam top elevation of the first radial frame beam 1 the same as the beam top elevation of the circumferential secondary beam 7.

[0070] In some embodiments, a plurality of first steel bars 8 and a plurality of second steel bars 9 are arranged on the upper part of the circumferential secondary beam 7. The first steel bars 8 and the corresponding second steel bars 9 are tied to both sides above the first radial frame beam 1. The adjacent ends of the first steel bars 8 and the second steel bars 9 extend towards each other above the first radial frame beam 1 and bend downwards for anchoring and extend into the first radial frame beam 1.

[0071] In some embodiments, a plurality of third steel bars 10 and a plurality of fourth steel bars 11 are arranged on the lower part of the circumferential secondary beam 7. The third steel bars 10 and the corresponding fourth steel bars 11 are tied to both sides of the middle and lower part of the first radial frame beam 1. The adjacent ends of the third steel bars 10 and the fourth steel bars 11 extend towards each other in the middle and lower part of the first radial frame beam 1 and bend upwards for anchoring in the first radial frame beam 1.

[0072] In some embodiments, the length of the first steel bar 8 in the heightening part 14 is 0.25Lab - 0.45Lab. For example, it can be 0.25Lab, 0.27Lab, 0.28Lab, 0.30Lab, 0.32Lab, 0.35Lab, 0.38Lab, 0.40Lab, 0.42Lab, 0.45Lab, etc.

[0073] In some embodiments, the length of the second steel bar 9 in the heightening part 14 is 0.25Lab - 0.45Lab. For example, it can be 0.25Lab, 0.27Lab, 0.28Lab, 0.30Lab, 0.32Lab, 0.35Lab, 0.38Lab, 0.40Lab, 0.42Lab, 0.45Lab, etc.

[0074] In some embodiments, the length of the third steel bar 10 in the heightening part 14 is 9d - 15d. For example, it can be 9d, 10d, 11d, 12d, 13d, 14d, 15d, etc.

[0075] In some embodiments, the length of the fourth steel bar 11 in the heightening part 14 is 9d - 15d. For example, it can be 9d, 10d, 11d, 12d, 13d, 14d, 15d, etc.

[0076] Please refer to Figures 4 to 7, in some embodiments, the heightening portion 14 includes a plurality of U-shaped stirrups 12 fixed to the top of the first radial frame beam 1. The plurality of U-shaped stirrups 12 are arranged in sequence along the radial direction of the annular structure. The inner sides of the upper parts of the plurality of U-shaped stirrups 12 are tied with longitudinal bars 13 along the radial direction of the annular structure. There are a plurality of the longitudinal bars 13, and it further includes concrete filled between the plurality of U-shaped stirrups 12 and the plurality of longitudinal bars 13.

[0077] It can be understood that the top of the first radial frame beam 1 and the circumferential secondary beams 7 on both sides thereof enclose a concave structure, and the heightening portion 14 is located within the concave structure.

[0078] In some embodiments, a plurality of first steel bars 8 are arranged on the upper part of the circumferential secondary beam 7 on one side of the first radial frame beam 1, and a plurality of second steel bars 9 are arranged on the upper part of the circumferential secondary beam 7 on the other side of the first radial frame beam 1. The adjacent ends of each first steel bar 8 and each second steel bar 9 extend to the lower parts of the plurality of longitudinal bars 13 within the heightening portion 14 and are bent downwards for anchoring and extend into the first radial frame beam 1.

[0079] In some embodiments, the longitudinal length of the first steel bar 8 is 12d to 18d, and for example, it can be 12d, 13d, 14d, 15d, 16d, 17d, 18d, etc.

[0080] In some embodiments, the longitudinal length of the second steel bar 9 is 12d to 18d, and for example, it can be 12d, 13d, 14d, 15d, 16d, 17d, 18d, etc.

[0081] In some embodiments, the lower part of each U-shaped stirrup 12 extends into the first radial frame beam 1.

[0082] In some embodiments, a plurality of third steel bars 10 are arranged on the lower part of the circumferential secondary beam 7 on one side of the first radial frame beam 1, and a plurality of fourth steel bars 11 are arranged on the lower part of the circumferential secondary beam 7 on the other side of the first radial frame beam 1. The adjacent ends of each third steel bar 10 and each fourth steel bar 11 extend into the first radial frame beam 1 and are bent upwards for anchoring.

[0083] It can be understood that the first steel bar 8 and the second steel bar 9 at the intersection of the circumferential secondary beam 7 above the first radial frame beam 1 and the first radial frame beam 1 form a hinge support. At the hinge support, while effectively transmitting the shear force of the horizontal component floor slab 2, the bending moment is released (the dead and live loads on the floor slab 2 and the circumferential secondary beam 7 form a positive bending moment at the mid-span of the floor slab 2 and the circumferential secondary beam 7, and a negative bending moment at the supports of the floor slab 2 and the circumferential secondary beam 7. When the support form is a hinge support, the bending moment at the support is equal to 0 at this time, so the bending moment is released), and the adjacent ends of the first steel bar 8 and the second steel bar 9 at the hinge support both extend above the first radial frame beam 1 (the heightening part 14) and are bent down and anchored and extend into the first radial frame beam 1, so that the first steel bar 8 and the second steel bar 9 are uninterrupted as a whole and maintain the continuity of force transmission.

[0084] It can be understood that inside the heightening part 14, the longitudinal bars 13 are located at the bottom of the upper cross bar of the U-shaped stirrups 12, and the first steel bar 8 and the second steel bar 9 are located below the longitudinal bars 13. With such a design, it is more in line with the force conduction. Specifically, the beam top elevation of the first radial frame beam 1 is the same as the beam top elevation of the circumferential secondary beam 7, so that the first steel bar 8, the second steel bar 9, the third steel bar 10 and the fourth steel bar 11 of the circumferential secondary beam 7 have reliable anchorage at the first radial frame beam 1, and the force borne by the circumferential secondary beam 7 is reliably conducted to the first radial frame beam 1.

[0085] Please refer to Figure 8 , in some embodiments, along the radial direction of the annular structure, a plurality of second radial frame beams 16 are arranged on both sides of the first radial frame beam 1.

[0086] It can be understood that the second radial frame beams 16 can better support and fix the floor slab 2, making the entire annular structure more stable.

[0087] Please refer to Figure 1 and Figure 2 , in some embodiments, corbels 5 are arranged on both sides of the first radial frame beam 1 along the radial direction of the annular structure, and the micro-displacement layer 6 extends to the upper part of the corbels 5.

[0088] In some embodiments, the micro-displacement layer 6 includes a first felt located at the top of the first radial frame beam 1, a second felt located at the bottom of the corresponding floor slab 2, and a graphite powder layer located between the first felt and the second felt.

[0089] It can be understood that at the intersection of the floor slab 2 above the first radial frame beam 1, the method of adding corbels 5 on both sides is used to form the support of the floor slab 2, which plays a supporting role for the floor slab 2 and makes the floor slab 2 more stable.

[0090] It can also be understood that the first radial frame beams 1 on both sides of the expansion and contraction opening and the upper part of the cantilever bracket 5 are laid with the first felt, the second felt is laid at the bottom of the floor slab 2 corresponding to the first felt, and a graphite powder layer is laid between the first felt and the second felt to form a micro-displacement layer 6. In this way, the micro-displacement effect is achieved.

[0091] Furthermore, the thickness of the micro-displacement layer 6 is 5 mm to 6.4 mm, and for example, it can be 5 mm, 5.2 mm, 5.4 mm, 5.6 mm, 5.8 mm, 6 mm, 6.1 mm, 6.2 mm, 6.3 mm, etc.

[0092] Furthermore, the thickness of the graphite powder layer is 0.8 mm to 1.2 mm, and for example, it can be 0.8 mm, 0.8 mm, 0.8 mm, 0.8 mm, 0.8 mm, etc.

[0093] Please refer to Figure 8 , in some embodiments, the temperature stress release structure includes at least two of the release units 15, and the at least two release units 15 are arranged in sequence along the circumferential direction of the annular structure.

[0094] In some embodiments, a plurality of second radial frame beams 16 are respectively arranged on both sides of each release unit 15, and each second radial frame beam 16 is arranged parallel to the first radial frame beam 1.

[0095] In some embodiments, the release unit 15 is arranged every 50 m to 60 m along the circumferential direction of the annular structure. It can be understood that every 50 m to 60 m, for example, it can be 50 m, 50 m, 50 m, 50 m, 50 m, 50 m, etc., and there is no need to additionally increase the structural joint, so that the ultra-long structure can maintain the continuity and integrity of force transmission.

[0096] The present application provides a structure that replaces the post-cast strip in an ultra-long structure. Considering the characteristics of temperature and shrinkage stress, without affecting the safety of the temperature stress release structure and the building use function, it can release part of the axial deformation of the horizontal member floor slab 2, so as to achieve the purpose of reducing the restraint stress generated by temperature and shrinkage deformation of the ultra-long concrete structure.

[0097] The present application provides a structure that replaces the post-cast strip in an ultra-long structure, so that the concrete structure can be cast in one piece. This temperature stress release structure releases the horizontal restraint deformation while meeting the force transmission requirements, and has the characteristics of wear resistance, high life, simple structure, and convenient construction. In terms of the construction method, it has the advantages of simple construction steps and convenient operation.

[0098] The embodiment of the present application also provides a processing method for the temperature stress release structure, which can be used to process the temperature stress release structure of the foregoing embodiment.

[0099] Please refer toFigure 1 and Figure 2 , in some embodiments, the processing method includes:

[0100] S01. Install the support formwork for the first radial frame beam 1 and the floor slab 2 at the expansion joint between the reserved floor slabs 2 above the first radial frame beam 1;

[0101] S02. Lay the micro-displacement layer 6 between the first radial frame beam 1 and the floor slab 2 on both sides of the expansion joint;

[0102] S03. Pour concrete;

[0103] S04. Remove the support formwork for the first radial frame beam 1 and the floor slab 2;

[0104] S05. Fill the expansion joint with the elastic expansion member 4.

[0105] It can be understood that steps S01 to S05 are processed into a complete release unit 15.

[0106] It can be understood that the floor slab 2 is discontinuous at the expansion joint, forming a free end, forming a micro-displacement layer 6 with the first radial frame beam 1, and the expansion joint is filled with the elastic expansion member 4 to form a flexible buffer layer, meeting the requirements of the axial relative deformation of the horizontal member floor slab 2.

[0107] In the said S01:

[0108] In some embodiments, the positions of the first radial frame beam 1 and the floor slab 2 are located on-site, and the support formwork for the first radial frame beam 1 and the floor slab 2 is installed.

[0109] Furthermore, the positions of the first radial frame beam 1, the circumferential secondary beam 7 and the floor slab 2 are located on-site, and the support formwork for the first radial frame beam 1, the circumferential secondary beam 7 and the floor slab 2 is installed.

[0110] Furthermore, the fixing method of the steel bars in the circumferential secondary beam 7 includes:

[0111] S011. Provide a plurality of first steel bars 8 and a plurality of second steel bars 9 above the circumferential secondary beam 7;

[0112] S012. Bind the first steel bar 8 and the corresponding second steel bar 9 on both sides above the first radial frame beam 1, and the adjacent ends of the first steel bar 8 and the second steel bar 9 extend towards each other above the first radial frame beam 1 and bend downwards and extend into the first radial frame beam 1;

[0113] S013. Provide a plurality of third steel bars 10 and a plurality of fourth steel bars 11 below the circumferential secondary beam 7;

[0114] S014. Bind the third steel bar 10 and the corresponding fourth steel bar 11 to both sides of the middle and lower part of the first radial frame beam 1. The adjacent ends of the third steel bar 10 and the fourth steel bar 11 extend mutually at the middle and lower part of the first radial frame beam 1 and are bent upward and anchored in the first radial frame beam 1.

[0115] Further, a heightening part 14 is provided at the top of the first radial frame beam 1. The steel bar binding method of the heightening part 14 includes:

[0116] S0111. Provide a plurality of U-shaped stirrups 12 and a plurality of longitudinal bars 13;

[0117] S0112. Bind the plurality of U-shaped stirrups 12 along the radial direction of the annular structure in sequence at the top of the first radial frame beam 1, and bind the plurality of longitudinal bars 13 along the circumferential direction of the annular structure at the upper inner sides of the plurality of U-shaped stirrups in sequence.

[0118] Further, the lower part of each U-shaped stirrup 12 extends into the first radial frame beam 1.

[0119] Further, the first steel bar 8 and the corresponding second steel bar 9 above the first radial frame beam 1 are both located at the lower part of the longitudinal bars 13.

[0120] It can be understood that the top elevation of the heightening part 14 is the same as the top elevation of the circumferential secondary beam 7, and the top elevation of each circumferential secondary beam 7 is the same as the top elevation of the floor slab 2.

[0121] In some embodiments, along the circumferential direction of the annular structure, the width of the expansion and contraction opening is 30 mm to 60 mm, for example, it can be 30 mm, 32 mm, 35 mm, 36 mm, 38 mm, 40 mm, 42 mm, 45 mm, 48 mm, 50 mm, 52 mm, 54 mm, 56 mm, 58 mm, 60 mm, etc. Within the width range of the expansion and contraction opening, it is beneficial to ensure that the floor slabs 2 on both sides of the expansion and contraction opening are within the range of calculated displacement.

[0122] In some embodiments, along the radial direction of the annular structure, position the positions of a plurality of second radial frame beams 16 on both sides of the first radial frame beam 1, and install the support formwork of the second radial frame beams 16. It can be understood that the support formwork of the second radial frame beams 16 needs to be removed after processing.

[0123] In S02:

[0124] In some embodiments, bind the corbel 5 steel bars at the first radial frame beam 1 at the expansion and contraction opening, lay the first asphalt felt on the top of the corbel 5 steel bars, lay the second asphalt felt corresponding to the bottom of the floor slab 2 above the corbel 5 steel bars, and lay a graphite powder layer between the first asphalt felt and the second asphalt felt to form the micro-displacement layer 6.

[0125] In the said S03:

[0126] In some embodiments, after tying all the steel bars, the concrete is poured together.

[0127] In the said S04:

[0128] In some embodiments, the expansion and contraction orifice is filled with polystyrene boards. It can be understood that the polystyrene boards are filled up to the elevation of the building layer 3.

[0129] Repeat the above steps S01 to S05, and process a plurality of release units 15 in sequence along the circumferential direction of the annular structure. The plurality of release units 15 are evenly distributed in the circumferential direction of the annular structure.

[0130] The basic concepts have been described above. Obviously, for those skilled in the art, the above detailed disclosure is only an example and does not constitute a limitation to this application. Although not explicitly stated here, those skilled in the art may make various modifications, improvements, and corrections to this application. Such modifications, improvements, and corrections are proposed in this application, so such modifications, improvements, and corrections still fall within the spirit and scope of the exemplary embodiments of this application.

[0131] Meanwhile, specific terms are used in this application to describe the embodiments of this application. Such as "one embodiment", "an embodiment", and / or "some embodiments" mean a certain feature, structure, or characteristic related to at least one embodiment of this application. Therefore, it should be emphasized and noted that the "an embodiment" or "one embodiment" or "an alternative embodiment" mentioned twice or more at different positions in this specification does not necessarily refer to the same embodiment. In addition, certain features, structures, or characteristics in one or more embodiments of this application can be appropriately combined.

Claims

1. A temperature stress release structure, characterized in that, Applied to an annular structure, the temperature stress release structure includes: A release unit, including: A first radial frame beam arranged along the radial direction of the annular structure; A floor slab located above the first radial frame beam. A shrinkage and expansion opening is arranged in the floor slab above the first radial frame beam along the radial direction of the annular structure. Micro-displacement layers are arranged between the first radial frame beam on both sides of the shrinkage and expansion opening and the floor slab; An elastic expansion member filled in the shrinkage and expansion opening.

2. The temperature stress release structure according to claim 1, characterized in that A plurality of circumferential secondary beams are arranged along the circumferential direction of the annular structure. Each circumferential secondary beam is located on both sides of the first radial frame beam. The top of the first radial frame beam is lower than the tops of the circumferential secondary beams on both sides of the first radial frame beam. A heightening part is arranged on the top of the first radial frame beam. The top elevation of the heightening part is the same as the top elevation of the circumferential secondary beams, and the top elevation of each circumferential secondary beam is the same as the top elevation of the floor slab.

3. The temperature stress relief structure according to claim 2, characterized in that, The heightening part includes a plurality of U-shaped stirrups fixed to the top of the first radial frame beam. The plurality of U-shaped stirrups are arranged in sequence along the radial direction of the annular structure. Longitudinal bars are tied along the radial direction on the inner sides of the upper parts of the plurality of U-shaped stirrups. There are a plurality of longitudinal bars. It also includes concrete filled between the plurality of U-shaped stirrups and the plurality of longitudinal bars.

4. The temperature stress release structure according to claim 3, characterized in that, A plurality of first steel bars are arranged on the upper part of the circumferential secondary beam on one side of the first radial frame beam. A plurality of second steel bars are arranged on the upper part of the circumferential secondary beam on the other side of the first radial frame beam. The adjacent ends of each first steel bar and each second steel bar extend to the lower part of the plurality of longitudinal bars in the heightening part and bend downwards and extend into the first radial frame beam; and / or The lower part of each U-shaped stirrup extends into the first radial frame beam; and / or A plurality of third steel bars are arranged on the lower part of the circumferential secondary beam on one side of the first radial frame beam. A plurality of fourth steel bars are arranged on the lower part of the circumferential secondary beam on the other side of the first radial frame beam. The adjacent ends of each third steel bar and each fourth steel bar extend into the first radial frame beam and bend upwards.

5. The temperature stress release structure according to claim 1, characterized in that, Along the radial direction of the annular structure, a plurality of second radial frame beams are arranged on both sides of the first radial frame beam; and / or Corbels are arranged on both sides of the first radial frame beam along the radial direction of the annular structure. The micro-displacement layer extends to the upper part of the corbels; and / or The micro-displacement layer includes a first asphalt felt located on the top of the first radial frame beam, a second asphalt felt located at the bottom of the corresponding floor slab, and a graphite powder layer located between the first asphalt felt and the second asphalt felt; and / or The elastic expansion member includes a polystyrene board.

6. The temperature stress release structure according to any one of claims 1-5, characterized in that The temperature stress release structure includes at least two release units, and the at least two release units are arranged in sequence along the circumferential direction of the annular structure.

7. A processing method of a temperature stress release structure, characterized in that Including: S01. Install the support formwork for the first radial frame beam and the floor slab, and reserve a shrinkage and expansion opening between the floor slabs above the first radial frame beam; S02. Lay a micro-displacement layer between the first radial frame beam on both sides of the expansion and contraction opening and the floor slab; S03. Pour concrete; S04. Demolish the support formwork of the first radial frame beam and the floor slab; S05. Fill the expansion and contraction opening with an elastic expansion member.

8. The processing method according to claim 7, wherein Install the support formwork of the first radial frame beam, the circumferential secondary beam and the floor slab; and / or Along the radial direction of the circular structure, position the positions of a plurality of second radial frame beams on both sides of the first radial frame beam, and install the support formwork of the second radial frame beams; and / or Tie in corbel steel bars at the first radial frame beam of the expansion and contraction opening, lay a first bituminous felt on the top of the corbel steel bars, lay a second bituminous felt correspondingly at the bottom of the floor slab above the corbel steel bars, and lay a graphite powder layer between the first bituminous felt and the second bituminous felt to form a micro-displacement layer; and / or Fill the expansion and contraction opening with polystyrene boards.

9. The processing method according to claim 8, wherein, The fixing method of the steel bars in the circumferential secondary beam includes: S011. Provide a plurality of first steel bars and a plurality of second steel bars on the upper part of the circumferential secondary beam; S012. Tie the first steel bars and the corresponding second steel bars to the upper two sides of the first radial frame beam. The adjacent ends of the first steel bars and the second steel bars extend towards each other above the first radial frame beam and bend downwards and extend into the first radial frame beam; S013. Provide a plurality of third steel bars and a plurality of fourth steel bars on the lower part of the circumferential secondary beam; S014. Tie the third steel bars and the corresponding fourth steel bars to the middle and lower two sides of the first radial frame beam. The adjacent ends of the third steel bars and the fourth steel bars extend towards each other at the middle and lower parts of the first radial frame beam and bend upwards and anchor in the first radial frame beam.

10. The processing method according to claim 8, characterized in that, The steel bar tying method at the top of the first radial frame beam includes: S0111. Provide a plurality of U-shaped stirrups and a plurality of longitudinal bars; S0112. Tie a plurality of U-shaped stirrups in sequence along the radial direction of the circular structure at the top of the first radial frame beam, and tie a plurality of longitudinal bars in sequence along the circumferential direction of the circular structure on the inner sides of the upper parts of the plurality of U-shaped stirrups; Wherein, the lower part of each U-shaped stirrup extends into the first radial frame beam; The first steel bars and the corresponding second steel bars above the first radial frame beam are both located below the longitudinal bars.

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