Construction and manufacturing method of a post-cast strip

Abstract

The application relates to a construction and manufacturing method of a settlement post-pouring belt, which supports passing vehicles through a first post-pouring belt support column integrated with a main building floor and a second post-pouring belt support column integrated with a podium floor before the settlement post-pouring belt is poured; the first post-pouring belt support column and the second post-pouring belt support column are cross arranged, which avoids the influence of the post-pouring belt pouring area on the passing vehicles before the settlement post-pouring belt is poured; when the settlement post-pouring belt needs to be poured, the post-pouring belt concrete is poured around the first post-pouring belt support column, the second post-pouring belt support column, corresponding first and second outer extension ends and post-pouring belt longitudinal steel, so as to form the settlement post-pouring belt. The application solves the technical problem that the long-hole structure post-pouring belt pouring area exists for a long time and influences the on-site construction in the prior art.

Description

Technical Field

[0001] This invention relates to the field of building construction, and in particular to a method for constructing a post-settlement pouring strip. Background Technology

[0002] In the construction of high-rise buildings in residential communities, a settlement relief strip is installed between the main building and the podium to address the issue of differential settlement. This means that the main building and the podium are poured first, leaving a space for the settlement relief strip. The podium typically refers to the basement, while the main building refers to the multi-story residential structure. Because the structural weights of the basement and the main building differ, there will be a certain degree of settlement difference. The settlement relief strip should be poured after the main structure of the main building is completed and the settlement is uniform.

[0003] The common practice in the existing technology is to construct independent formwork structures for the main building floor slabs and the podium floor slabs when pouring the main building and the podium floor slabs. Then, a main building floor slab forming template is set on the upper side of the main building floor slab forming template, and a podium floor slab forming template is set on the upper side of the podium floor slab forming template. The edges are treated with wire mesh, thereby pouring the main building floor slabs and podium floor slabs at intervals. The gap between the main building floor slabs and the podium floor slabs forms a post-pouring strip pouring area. After the main building is completed and the main building and podium floor have settled evenly, concrete is poured into the post-pouring strip pouring area to form a settlement post-pouring strip.

[0004] The existing construction of settlement-relief post-cast strips has the following problems: There is a period of time between the construction of the main building and the waiting for the main building and podium to settle evenly. During this period, the post-cast strip pouring area (actually a long hole) is always present. This long hole will affect the passing vehicles and cause some adverse effects on the on-site construction. In addition, the two sides of the width direction of the post-cast strip pouring area are blocked by wire mesh. When pouring the post-cast strip, in order to provide the connection strength between the settlement-relief post-cast strip and the floor slabs on both sides, it is necessary to chisel and anchor the concrete on both sides of the width direction of the post-cast strip pouring area. This process is very troublesome, not only is the construction difficult and labor-intensive, but it will also cause on-site pollution. Summary of the Invention

[0005] The purpose of this invention is to provide a construction and manufacturing method for post-pouring strips, so as to solve the technical problem in the prior art that the long-term existence of the post-pouring strip pouring area with elongated hole structure will affect on-site construction.

[0006] To solve the above-mentioned technical problems, the technical solution of the construction and manufacturing method of post-pouring strip in this invention is as follows: A method for constructing a settlement post-cast strip, comprising the following steps: First, constructing a main building slab formwork structure, a post-cast strip formwork structure, and a podium slab formwork structure arranged independently in a left-right direction. The main building slab formwork is installed on the upper side of the main building slab formwork structure, the post-cast strip formwork is installed on the upper side of the post-cast strip formwork structure, and the podium slab formwork is installed on the upper side of the podium slab formwork structure. The post-cast strip formwork spans the post-cast strip pouring area in a left-right direction. The second step is to fabricate a main building floor slab reinforcement cage on the upper side of the main building floor slab formwork and a podium floor slab reinforcement cage on the upper side of the podium floor slab formwork. The main building floor slab reinforcement cage includes transverse reinforcement bars of the main building floor slab extending in the left and right directions. The podium floor slab reinforcement cage includes transverse reinforcement bars of the podium floor slab extending in the left and right directions. The right end of the transverse reinforcement bars of the main building floor slab is the first extended end that extends into the post-pouring strip pouring area. The left end of the transverse reinforcement bars of the podium floor slab is the second extended end that extends into the post-pouring strip pouring area. Each second extended end is located between two adjacent first extended ends. The third step involves fitting a first mold cover from top to bottom onto the corresponding first extended end, and fitting a second mold cover from top to bottom onto the corresponding second extended end. Adjacent first and second mold covers have at least one first extended end and one second extended end. The bottoms of the first and second mold covers are supported on the post-cast strip template. The first mold cover includes a front side plate, a rear side plate, and a right side plate. The second mold cover includes a front side plate, a rear side plate, and a left side plate. A right-side wire mesh is fixed to the right end of the first mold cover, and a left-side wire mesh is fixed to the left end of the second mold cover. Fourth step: Pour the main building floor slab concrete on the upper side of the main building floor slab formwork, and pour the podium floor slab concrete on the upper side of the podium floor slab formwork. The main building floor slab concrete flows from left to right into the interior of the first mold cover and is fixed to the first extended end inside the first mold cover to form the first support column of the cantilever structure post-cast strip; the podium floor slab concrete flows from right to left into the interior of the second mold cover and is fixed to the second extended end inside the second mold cover to form the second support column of the cantilever structure post-cast strip. Fifth step: After the main building floor slab concrete has cured, remove the main building floor slab formwork structure and formwork, and remove the first formwork cover; after the podium floor slab concrete has cured, remove the podium floor slab formwork structure and formwork, and remove the second formwork cover. The sixth step is to complete the construction of the main building. After the main building and the podium have settled evenly, pour concrete for the post-cast strip around the first support column of the post-cast strip, around the second support column of the post-cast strip, and between the podium floor slab and the main building floor slab to form the settlement post-cast strip.

[0007] Furthermore, the height of the upper surface of the first and second support columns of the post-cast strip is lower than or equal to the height of the upper surface of the main building slab and the podium slab.

[0008] Furthermore, the distance between the front side panel and the rear side panel of the first mold cover gradually increases from top to bottom, and the right side panel of the first mold cover gradually tilts to the right from top to bottom; the distance between the front side panel and the rear side panel of the second mold cover gradually increases from top to bottom, and the left side panel of the second mold cover gradually tilts to the left from top to bottom.

[0009] Furthermore, the post-cast strip template is composed of a left post-cast strip template and a rear post-cast strip template, which are independently set on the left and right sides. The left post-cast strip template has multiple spaced first comb-tooth bottom plates, and the right post-cast strip template has multiple spaced second comb-tooth bottom plates. A first interlocking gap is formed between two adjacent first comb-tooth bottom plates for the corresponding second comb-tooth bottom plates to be inserted into each other in the left and right direction. A second interlocking gap is formed between two adjacent second comb-tooth bottom plates for the corresponding first comb-tooth bottom plates to be inserted into each other in the left and right direction. The bottom of the first support column of the post-cast strip is supported on the corresponding first comb-tooth bottom plate, and the second support column of the post-cast strip is supported on the corresponding second comb-tooth bottom plate.

[0010] Furthermore, the post-cast strip formwork structure includes a left support leg supporting the lower end of the left side template of the post-cast strip and a right support leg supporting the lower end of the right side template of the post-cast strip. Each support leg includes a lower support leg and an upper support leg that telescopically engages with the lower support leg in the vertical direction. A compression spring is provided between the upper support leg and the lower support leg. The upper support leg is provided with an upper support leg pin hole, and the lower support leg is provided with multiple lower support leg pin holes spaced apart in the vertical direction. Each support leg also includes a positioning pin for detachably inserting into the corresponding lower support leg pin hole and upper support leg pin hole.

[0011] Furthermore, in steps one through five, the positioning pins are inserted into the corresponding lower support leg pin holes and upper support leg pin holes; in step six, during the settlement of the main building and the podium building, the positioning pins are pulled out from the corresponding lower support leg pin holes and upper support leg pin holes; in step six, during the pouring of the post-cast strip concrete, the positioning pins are inserted into the corresponding lower support leg pin holes and upper support leg pin holes.

[0012] The beneficial effects of this invention are as follows: In this invention, during the pouring of the main building floor slab and the podium floor slab, the use of the post-pouring strip template, the first mold cover, and the second mold cover allows the first and second post-pouring strip support columns to be formed in the post-pouring strip pouring area during the forming process of the main building floor slab and the podium floor slab. The first and second post-pouring strip support columns are interlocked like comb teeth, allowing passing vehicles to pass smoothly through the post-pouring strip pouring area, avoiding the impact of the post-pouring strip pouring area on passing vehicles before the settlement post-pouring strip is poured. When it is necessary to pour the settlement pouring strip, the settlement post-pouring strip is formed by pouring post-pouring strip concrete around the first and second post-pouring strip support columns, the corresponding first and second extended ends, and the longitudinal reinforcement of the post-pouring strip. Attached Figure Description

[0013] The above and other objects, features, and advantages of this disclosure will become readily apparent from the following detailed description of exemplary embodiments with reference to the accompanying drawings. In the drawings, several embodiments of this disclosure are illustrated by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding portions, wherein: Figure 1 This is a schematic diagram showing the completed state of the main building floor slab reinforcement cage and the podium floor slab reinforcement cage in this invention. Figure 2 yes Figure 1 A schematic diagram showing the state after the first mold cover is installed on the first extended end cover and the second mold cover is installed on the second extended end cover; Figure 3 yes Figure 2 A schematic diagram showing the fit between the first mold cover and the first extended end, and the second mold cover and the second extended end; Figure 4 yes Figure 3 A schematic diagram of the structure of the first mold cover; Figure 5 yes Figure 4 Top view; Figure 6 yes Figure 4 The right view; Figure 7 This is a schematic diagram of the cooperation between the first mold cover and the first extended end in this invention; Figure 8 This is a schematic diagram showing the state of the main building floor slab, the podium floor slab, and the first and second support columns of the post-cast strip after the pouring is completed in this invention. Figure 9 This is a schematic diagram showing the cooperation between the post-cast strip template and the first and second support columns of the post-cast strip in this invention. Figure 10 yes Figure 9 Schematic diagram of the structure of the formwork on the left side of the middle and post-pouring strip; Figure 11 This is a schematic diagram illustrating the cooperation between the formwork structure of the post-cast strip, the formwork of the post-cast strip, and the first support column of the post-cast strip during the settlement of the main building and the podium building in this invention. Figure 12 This is a schematic diagram showing the state after the settlement strip is poured in this invention; 1. Formwork structure for post-cast strip; 2. Left support leg; 3. Right support leg; 4. Podium floor slab formwork; 5. Post-cast strip formwork; 5-1. Left side formwork for post-cast strip; 5-2. Right side formwork for post-cast strip; 6. Main building floor slab formwork; 7. Main building floor slab reinforcement cage; 8. Main building floor slab transverse reinforcement; 9. Post-cast strip pouring area; 10. First longitudinal reinforcement of post-cast strip; 11. Second outward extension; 12. Podium floor slab transverse reinforcement; 13. Upper support leg; 14. Lower support leg; 15. Compression spring; 16. Pin hole for upper support leg; 17. Positioning pin; 18. Pin hole for lower support leg; 9. First extended end; 20. Second longitudinal reinforcement of the post-cast strip; 21. First mold cover; 22. Right side wire mesh; 23. Second mold cover; 24. Top plate of the first mold cover; 25. Front side plate of the first mold cover; 26. Right side plate of the first mold cover; 27. Clearance hole of the first mold cover; 28. Rear side plate of the first mold cover; 29. ​​Main building floor slab; 30. Podium floor slab; 31. First support column of the post-cast strip; 32. Second support column of the post-cast strip; 33. First comb tooth bottom plate; 34. Second comb tooth bottom plate; 35. Settlement post-cast strip; 36. Rubber water baffle; 37. Tie rod; 38. Water collection trough. Detailed Implementation

[0014] To facilitate understanding of the present invention, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. Preferred embodiments of the invention are shown in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention.

[0015] It should be noted that, unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention.

[0016] An example of the construction and manufacturing method of a settlement-post-cast strip in this invention is as follows: Figures 1-12 As shown: The method includes the following steps: A method for constructing a settlement-supported formwork strip includes the following steps: First, constructing a main building slab formwork structure (not shown in the figure), a settlement-supported formwork structure 1, and a podium slab formwork structure (not shown in the figure) arranged independently in a left-right direction. A main building slab formwork 6 is installed on the upper side of the main building slab formwork structure, a settlement-supported formwork 5 is installed on the upper side of the settlement-supported formwork structure, and a podium slab formwork 4 is installed on the upper side of the podium slab formwork structure. The settlement-supported formwork spans the settlement-supported formwork area in a left-right direction; that is, the width of the settlement-supported formwork is greater than the width of the settlement-supported formwork area. Both the main building slab formwork structure and the podium slab formwork structure are scaffolding formwork structures, which are existing technologies and will not be described in detail here. Figure 1 The area marked by the dashed line represents the area where the post-cast strip was poured.

[0017] The second step involves fabricating a main building floor slab reinforcement cage 7 on the upper side of the main building floor slab formwork and a podium floor slab reinforcement cage on the upper side of the podium floor slab formwork. The main building floor slab reinforcement cage includes transverse main building floor slab reinforcement bars 8 extending in the left-right direction, and the podium floor slab reinforcement cage includes transverse podium floor slab reinforcement bars 12 extending in the left-right direction. The right end of the transverse main building floor slab reinforcement bars 8 is a first extended end 19 extending into the post-pouring strip pouring area, and the left end of the transverse podium floor slab reinforcement bars is a second extended end 11 extending into the post-pouring strip pouring area. Each second extended end 11 is located between two adjacent first extended ends 19. Longitudinal reinforcement bars of the post-pouring strip extending in the front-back direction are tied and fixed to the first and second extended ends. The longitudinal reinforcement bars of the post-pouring strip include first longitudinal reinforcement bars 10 and second longitudinal reinforcement bars 20 set on the left and right sides. The first and second longitudinal reinforcement bars of the post-pouring strip are tied and fixed to the first extended end and also to the second extended end. In other embodiments of the present invention, when the length and width of the post-cast strip are not large, the first longitudinal reinforcement and the second longitudinal reinforcement of the post-cast strip may be omitted.

[0018] Thirdly, a first mold cover 21 is fitted from top to bottom onto the corresponding first extended end, and a second mold cover 23 is fitted from top to bottom onto the corresponding second extended end. Adjacent first and second mold covers have one first extended end and one second extended end. The bottoms of the first mold cover 21 and the second mold cover 23 are supported on the post-cast strip template 5. The first mold cover includes a front side plate 25, a rear side plate 28, and a right side plate 26. The first mold cover also includes a top plate 24 fixed to the upper end of the front side plate, the rear side plate, and the right side plate. The front side plate 25 and the rear side plate 28 of the first mold cover are provided with vertically extending sections to avoid corresponding post-cast strips. The first mold cover with longitudinal reinforcing bars has a clearance hole 27; the second mold cover includes a front side plate, a rear side plate, and a left side plate. The front and rear side plates of the second mold cover are provided with clearance holes extending in the vertical direction to avoid the longitudinal reinforcing bars of the corresponding post-pouring strip. A vertically arranged right-side wire mesh is fixed to the right end of the first mold cover, and a vertically arranged left-side wire mesh is fixed to the left end of the second mold cover. The right-side wire mesh is used to block the area outside the second mold cover so that when the podium floor slab is poured, it blocks the concrete and forms the left side of the podium floor slab; the left-side wire mesh is used to block the area outside the first mold cover so that when the main floor slab is poured, it blocks the concrete and forms the right side of the main floor slab.

[0019] The fourth step involves pouring the main building slab concrete onto the top of the main building slab formwork and the podium slab concrete onto the top of the podium slab formwork. The main building slab concrete flows from left to right into the first mold cover and solidifies with the first extended end inside the first mold cover to form a cantilever structure, specifically the first support column 31 of the post-pouring strip. The podium slab concrete flows from right to left into the second mold cover and solidifies with the second extended end inside the second mold cover to form a cantilever structure, specifically the second support column 32 of the post-pouring strip. Therefore, the first support column of the post-pouring strip is a cantilever structure with its left end integrally formed with the main building slab, and the second support column of the post-pouring strip is a cantilever structure with its right end integrally formed with the podium slab. Passing vehicles can run over the first and second support columns of the post-pouring strip, thus facilitating their passage through the post-pouring strip pouring area 9.

[0020] Step 5: After the main building floor slab concrete has cured, remove the main building floor slab formwork structure and formwork, and remove the first formwork cover 21; after the podium floor slab concrete has cured, remove the podium floor slab formwork structure and formwork, and remove the second formwork cover 23. The sixth step involves completing the main building construction. After the main building and the podium have settled evenly (the settling time for the main building and podium is based on existing technology, generally fifteen days after the main building is completed), post-cast strip concrete is poured around the first and second support columns of the post-cast strip, as well as between the podium floor slab and the main building floor slab, thus forming the settlement post-cast strip. The settlement post-cast strip wraps around the exposed first and second protruding ends and the corresponding longitudinal reinforcement bars, ensuring the connection strength between the settlement post-cast strip and the reinforcement bars.

[0021] Furthermore, the height of the upper surface of the first and second support columns of the post-cast strip is lower than or equal to the height of the upper surface of the main building slab and the podium slab, so as to facilitate vehicle passage.

[0022] Furthermore, the spacing between the front and rear side panels of the first mold cover gradually increases from top to bottom, and the right side panel of the first mold cover gradually tilts to the right from top to bottom; similarly, the spacing between the front and rear side panels of the second mold cover gradually increases from top to bottom, and the left side panel of the second mold cover gradually tilts to the left from top to bottom. This results in the first and second support columns of the post-cast strip having trapezoidal cross-sections that are smaller at the top and larger at the bottom. This ensures their structural strength and creates a pouring space between them, ensuring the support strength between the concrete and the columns after pouring. This eliminates the need for roughening the main building slab and the podium slab.

[0023] Furthermore, the formwork for the post-cast strip consists of a left-side formwork 5-1 and a rear-side formwork 5-2, which are independently set on the left and right sides respectively. The left-side formwork has multiple spaced-apart first comb-tooth base plates 33, and the right-side formwork has multiple spaced-apart second comb-tooth base plates 34. A first interlocking gap is formed between two adjacent first comb-tooth base plates, allowing the corresponding second comb-tooth base plates to interlock in the left-right direction. A second interlocking gap is formed between two adjacent second comb-tooth base plates, allowing the corresponding first comb-tooth base plates to interlock in the left-right direction. The bottom of the first support column 31 of the post-cast strip is supported on the corresponding first comb-tooth base plate 33, and the second support column 32 of the post-cast strip is supported on the corresponding second comb-tooth base plate 34. This helps to ensure that the left-side formwork 5-1 and the right-side formwork 5-2 of the post-cast strip do not affect each other during the relative settlement of the main building and the podium building.

[0024] Furthermore, the post-cast strip formwork structure includes a left support leg 2 supported at the lower end of the left side template of the post-cast strip and a right support leg 3 supported at the lower end of the right side template of the post-cast strip. Each support leg includes a lower support leg 14 and an upper support leg 13 that telescopically engages with the lower support leg 14 in the vertical direction. A compression spring 15 is provided between the upper support leg 13 and the lower support leg 14. The upper support leg is provided with an upper support leg pin hole 16, and the lower support leg is provided with a plurality of lower support leg pin holes 18 spaced apart in the vertical direction. Each support leg also includes a positioning pin 17 for detachably inserting into the corresponding lower support leg pin hole and upper support leg pin hole.

[0025] Furthermore, in steps one through five, the positioning pins 17 are inserted into the corresponding lower support leg pin holes 18 and upper support leg pin holes 16. The height of the left and right support legs cannot be adjusted at this time to ensure the support strength for the post-cast strip formwork. In step six, during the settlement of the main building and the podium building, the positioning pins 17 are pulled out from the corresponding lower support leg pin holes 18 and upper support leg pin holes 16. At this time, the base support leg and the right support leg are able to extend and retract and will not be damaged due to the settlement of the corresponding building. In step six, during the pouring of the post-cast strip concrete, the positioning pins are inserted into the corresponding lower support leg pin holes and upper support leg pin holes to ensure the support for the post-cast strip formwork during the pouring of the post-cast strip concrete.

[0026] Furthermore, after the concrete of the post-cast strip has cured, the left and right support legs are removed. Rubber water-blocking plates 36 are installed on the lower side of the connection joint between the settlement post-cast strip 35 and the main building slab 29, and on the lower side of the connection joint between the settlement post-cast strip 35 and the podium slab 30. The left rubber water-blocking plate is fixed to the bottom of the main building slab by tie rod 37, and the right rubber water-blocking plate 36 is fixed to the bottom of the podium slab by tie rod. The upper end of the left rubber water-blocking plate is sealed to the bottom of the main building slab, and the upper end of the right rubber water-blocking plate is sealed to the bottom of the podium slab. A water-guiding channel with a larger upper part and a smaller lower part is formed between the two rubber water-blocking plates. The lower end of the tie rod is fixed with a water-collecting groove 38 by bolts. If water leakage occurs between the settlement post-cast strip and the main building slab or the podium slab, the water can be collected and drained away by the water-collecting groove.

[0027] In the foregoing description of this specification, unless otherwise expressly specified and limited, the terms "fixed," "installed," "connected," or "linked" should be interpreted broadly. For example, the term "linked" can refer to 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 an indirect connection through an intermediate medium; or it can refer to the internal communication of two components or the interaction between two components. Therefore, unless otherwise expressly limited in this specification, those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0028] Based on the above description in this specification, those skilled in the art will also understand that terms used, such as "upper," "lower," "front," "rear," "left," "right," "length," "width," "thickness," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," "center," "longitudinal," "transverse," "clockwise," or "counterclockwise," are terms indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings of this specification. They are only for the purpose of facilitating the explanation of the present invention and simplifying the description, and do not imply that the devices or elements involved must have the specific orientation, or be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms should not be understood or interpreted as limitations on the present invention.

[0029] Furthermore, the terms "first" or "second," etc., used in this specification to refer to numbers or ordinal numbers are for descriptive purposes only and should not be construed as indicating, explicitly or implicitly, relative importance or specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this specification, "a plurality of" means at least two, such as two, three, or more, unless otherwise explicitly specified.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for constructing and manufacturing a post-settlement pouring strip, characterized in that: The method includes the following steps: First, construct the main building floor slab formwork structure, the post-pouring strip formwork structure, and the podium floor slab formwork structure, which are arranged independently in the left and right directions. The main building floor slab formwork is set on the upper side of the main building floor slab formwork structure, the post-pouring strip formwork is set on the upper side of the post-pouring strip formwork structure, and the podium floor slab formwork is set on the upper side of the podium floor slab formwork structure. The post-pouring strip formwork spans the post-pouring strip pouring area in the left and right directions. The second step is to fabricate a main building floor slab reinforcement cage on the upper side of the main building floor slab formwork and a podium floor slab reinforcement cage on the upper side of the podium floor slab formwork. The main building floor slab reinforcement cage includes transverse reinforcement bars of the main building floor slab extending in the left and right directions. The podium floor slab reinforcement cage includes transverse reinforcement bars of the podium floor slab extending in the left and right directions. The right end of the transverse reinforcement bars of the main building floor slab is the first extended end that extends into the post-pouring strip pouring area. The left end of the transverse reinforcement bars of the podium floor slab is the second extended end that extends into the post-pouring strip pouring area. Each second extended end is located between two adjacent first extended ends. The third step involves fitting a first mold cover from top to bottom onto the corresponding first extended end, and fitting a second mold cover from top to bottom onto the corresponding second extended end. Adjacent first and second mold covers have at least one first extended end and one second extended end. The bottoms of the first and second mold covers are supported on the post-cast strip template. The first mold cover includes a front side plate, a rear side plate, and a right side plate. The second mold cover includes a front side plate, a rear side plate, and a left side plate. A right-side wire mesh is fixed to the right end of the first mold cover, and a left-side wire mesh is fixed to the left end of the second mold cover. Fourth step: Pour the main building floor slab concrete on the upper side of the main building floor slab formwork, and pour the podium floor slab concrete on the upper side of the podium floor slab formwork. The main building floor slab concrete flows from left to right into the interior of the first mold cover and is fixed to the first extended end inside the first mold cover to form the first support column of the cantilever structure post-cast strip; the podium floor slab concrete flows from right to left into the interior of the second mold cover and is fixed to the second extended end inside the second mold cover to form the second support column of the cantilever structure post-cast strip. Fifth step: After the main building floor slab concrete has cured, remove the main building floor slab formwork structure and formwork, and remove the first formwork cover; after the podium floor slab concrete has cured, remove the podium floor slab formwork structure and formwork, and remove the second formwork cover. The sixth step is to complete the construction of the main building. After the main building and the podium have settled evenly, pour concrete for the post-cast strip around the first support column of the post-cast strip, around the second support column of the post-cast strip, and between the podium floor slab and the main building floor slab to form the settlement post-cast strip.

2. The construction and manufacturing method according to claim 1, characterized in that: The height of the upper surface of the first and second support columns of the post-cast strip is lower than or equal to the height of the upper surface of the main building slab and the podium slab.

3. The construction and manufacturing method according to claim 1, characterized in that: The distance between the front and rear side panels of the first mold cover gradually increases from top to bottom, and the right side panel of the first mold cover gradually tilts to the right from top to bottom; the distance between the front and rear side panels of the second mold cover gradually increases from top to bottom, and the left side panel of the second mold cover gradually tilts to the left from top to bottom.

4. The construction and manufacturing method according to any one of claims 1 to 3, characterized in that: The post-cast strip template consists of a left-side template and a rear-side template of the post-cast strip, which are set independently on the left and right sides. The left-side template of the post-cast strip has multiple spaced first comb-tooth bottom plates, and the right-side template of the post-cast strip has multiple spaced second comb-tooth bottom plates. A first interlocking gap is formed between two adjacent first comb-tooth bottom plates for the corresponding second comb-tooth bottom plates to be inserted into each other in the left and right direction. A second interlocking gap is formed between two adjacent second comb-tooth bottom plates for the corresponding first comb-tooth bottom plates to be inserted into each other in the left and right direction. The bottom of the first support column of the post-cast strip is supported on the corresponding first comb-tooth bottom plate, and the second support column of the post-cast strip is supported on the corresponding second comb-tooth bottom plate.

5. The construction and manufacturing method according to claim 4, characterized in that: The formwork structure for the post-cast strip includes a left support leg supporting the lower end of the left template of the post-cast strip and a right support leg supporting the lower end of the right template of the post-cast strip. Each support leg includes a lower support leg and an upper support leg that telescopically engages with the lower support leg in the vertical direction. A compression spring is provided between the upper support leg and the lower support leg. The upper support leg is provided with an upper support leg pin hole, and the lower support leg is provided with multiple lower support leg pin holes spaced apart in the vertical direction. Each support leg also includes a positioning pin for detachably inserting into the corresponding lower support leg pin hole and upper support leg pin hole.

6. The construction and manufacturing method according to claim 5, characterized in that: In steps one through five, the positioning pins are inserted into the corresponding lower support leg pin holes and upper support leg pin holes; in step six, during the settlement of the main building and the podium building, the positioning pins are pulled out from the corresponding lower support leg pin holes and upper support leg pin holes; in step six, during the pouring of the post-cast strip concrete, the positioning pins are inserted into the corresponding lower support leg pin holes and upper support leg pin holes.

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