阅读说明：本技术 一种混合塔的钢塔与钢壳混凝土组合塔的结合段构造 (Steel tower and steel shell concrete combined tower combined section structure of hybrid tower ) 是由 梁立农 张旸 宁立 刘明慧 卢绍鸿 陈焕煜 肖杰 唐清东 曲宛桐 孙洋 于 2021-06-29 设计创作，主要内容包括：本发明公开了一种混合塔的钢塔与钢壳混凝土组合塔的结合段构造,包括承压隔板,承压隔板横向设置在上塔柱为钢塔和下塔柱为钢壳混凝土组合塔交界位置,下塔柱和上塔柱外塔壁和内塔壁各自上下延伸连为一体,承压隔板位于外塔壁和内塔壁之间,承压隔板的内边沿和外边沿分别与内塔壁和外塔壁连接,承压隔板上表面和上塔柱内、外塔壁上竖向肋的下端连接,承压隔板下表面与下塔柱内、外塔壁上竖向肋的上端连接,承压隔板开有混凝土浇筑孔。本发明结合段内、外塔壁和分仓钢板贯通连续,使上塔柱的塔壁力流连续传递至下塔柱的钢壳,本发明使用承压隔板,传力效果好,可解决钢塔与钢壳混凝土组合塔的构造过渡和传力问题,保证结构合理性和安全可靠性。(The invention discloses a combined section structure of a steel tower and a steel shell concrete combined tower of a hybrid tower, which comprises a pressure-bearing partition plate, wherein the pressure-bearing partition plate is transversely arranged at the junction position of an upper tower column, namely the steel tower, and a lower tower column, namely the steel shell concrete combined tower, the outer tower wall and the inner tower wall of the lower tower column and the upper tower column respectively extend up and down to be connected into a whole, the pressure-bearing partition plate is positioned between the outer tower wall and the inner tower wall, the inner edge and the outer edge of the pressure-bearing partition plate are respectively connected with the inner tower wall and the outer tower wall, the upper surface of the pressure-bearing partition plate is connected with the lower ends of vertical ribs on the inner tower wall and the outer tower wall of the upper tower column, the lower surface of the pressure-bearing partition plate is connected with the upper ends of vertical ribs on the inner tower column wall and the outer tower wall of the lower tower column, and the pressure-bearing partition plate is provided with concrete pouring holes. The combined section has continuous through between the inner tower wall, the outer tower wall and the bin-dividing steel plate, so that the force flow of the tower wall of the upper tower column is continuously transmitted to the steel shell of the lower tower column.)

1. The utility model provides a steel tower of hybrid tower and steel-shelled concrete combined tower's joint segment structure which characterized in that: the concrete combined tower comprises a pressure-bearing partition plate, wherein the pressure-bearing partition plate is transversely arranged at the junction position of a steel tower and a steel shell concrete combined tower at an upper tower column, the outer tower wall and the inner tower wall of the lower tower column and the upper tower column respectively extend up and down to be connected into a whole, the pressure-bearing partition plate is positioned between the outer tower wall and the inner tower wall, the inner edge and the outer edge of the pressure-bearing partition plate are respectively connected with the inner tower wall and the outer tower wall, the upper surface of the pressure-bearing partition plate is connected with the lower ends of vertical ribs on the inner tower wall and the outer tower wall of the steel tower, the lower surface of the pressure-bearing partition plate is connected with the upper ends of the vertical ribs on the inner tower wall and the outer tower wall of the steel shell concrete combined tower, and concrete holes are formed in the pressure-bearing partition plate.

2. The steel tower and steel shell concrete composite tower joint section construction of a hybrid tower according to claim 1, wherein: and the edge of the concrete pouring hole of the pressure-bearing partition plate is provided with a folded edge which is bent upwards.

3. The steel tower and steel shell concrete composite tower joint section construction of a hybrid tower according to claim 2, wherein: and vibration holes are formed in the corner positions of the pressure-bearing partition plates.

4. The steel tower and steel shell concrete composite tower joint section construction of a hybrid tower according to claim 3, wherein: the thickness of the pressure-bearing separator is 20 mm-50 mm.

5. The steel tower and steel shell concrete composite tower joint section construction of a hybrid tower according to claim 4, wherein: the vertical ribs on the inner tower wall of the steel tower correspond to the vertical ribs on the inner tower wall of the steel shell concrete combined tower up and down, and the vertical ribs on the outer tower wall of the steel tower correspond to the vertical ribs on the outer tower wall of the steel shell concrete combined tower up and down.

6. The steel tower and steel shell concrete composite tower joint section construction of a hybrid tower according to claim 5, wherein: the vertical ribs on the inner tower wall and the outer tower wall of the steel tower are gradually increased from top to bottom to form the height-increasing vertical ribs, the height-increasing vertical ribs are provided with flanges, the vertical ribs on the inner tower wall and the outer tower wall of the steel shell concrete combined tower are gradually increased from bottom to top to form the height-increasing vertical ribs, and the height of the height-increasing vertical ribs and the height of the flanges of the height-increasing vertical ribs of the steel tower are the same as the height-increasing vertical ribs of the steel shell concrete combined tower.

7. The steel tower and steel shell concrete composite tower joint section construction of a hybrid tower according to claim 6, wherein: vertical bin dividing steel plates are arranged in the upper tower column and the lower tower column, the bin dividing steel plates in the upper tower column and the lower tower column correspond to each other up and down, vertical ribs are arranged on the bin dividing steel plates, the vertical ribs on the bin dividing steel plates in the upper tower column correspond to the vertical ribs on the bin dividing steel plates in the lower tower column up and down, the parts, close to pressure-bearing partition plates, of the vertical ribs on the bin dividing steel plates in the upper tower column are gradually increased to be height-increasing vertical ribs from top to bottom, flanges are arranged on the height-increasing vertical ribs, the parts, close to the pressure-bearing partition plates, of the vertical ribs on the bin dividing steel plates in the lower tower column are gradually increased to be height-increasing vertical ribs from bottom to top, and the heights of the height-increasing vertical ribs and the flanges on the bin dividing steel plates in the upper tower column are the same as the heights of the height-increasing vertical ribs on the bin dividing steel plates in the lower tower column; the lower ends of the upper tower column internal bin steel plate and the vertical ribs thereof are connected with the upper surface of the pressure-bearing partition plate, and the upper ends of the lower tower column internal bin steel plate and the vertical ribs thereof are connected with the lower surface of the pressure-bearing partition plate.

8. The steel tower and steel shell concrete composite tower joint section construction of a hybrid tower according to claim 7, wherein: the pressure-bearing partition plate is provided with a plurality of exhaust holes, and the exhaust holes are close to the outer tower wall, the inner tower wall and the bin-dividing steel plate.

9. The steel tower and steel shell concrete composite tower joint section construction of a hybrid tower according to claim 8, wherein: shear nails are arranged on the lower surface of the pressure-bearing partition plate, the inner surface of the outer tower wall and the outer surface of the inner tower wall of the steel shell concrete combined tower and the bin-dividing steel plates in the lower tower column, the height-variable vertical ribs of the steel shell concrete combined tower and the height-variable vertical ribs on the bin-dividing steel plates in the lower tower column are provided with holes, and reinforcing steel bars penetrate through the holes, so that the vertical ribs of the steel tower, the vertical ribs of the steel shell concrete combined tower and the reinforcing steel bars form PBL shear keys.

10. The steel tower and steel shell concrete composite tower joint section construction of a hybrid tower according to claim 9, wherein: and a multi-layer steel bar net rack is arranged below the pressure-bearing partition plate, and the steel bar net rack and the steel bars are in lap joint to form a grid framework structure.

Technical Field

The invention belongs to the design technology of a main tower structure of a cable bearing bridge, and particularly relates to a combined section structure of a steel tower and a steel shell concrete combined tower of a hybrid tower, which can realize the transition from the steel tower to the steel shell concrete combined tower.

Background

With the development of the cable bearing bridge technology, the structural form of the main tower is more and more. Common main tower structural forms include a concrete structure main tower, a steel-concrete mixed structure main tower, a steel shell concrete structure main tower and the like, and the above various main tower structural forms all have specific application situations, wherein the steel shell concrete structure main tower (steel shell concrete combined tower) and the steel structure main tower (steel tower) are generally applied to the following situations: (1) the main tower has a more complex shape; (2) the template of the concrete tower is difficult to reuse; (3) the requirement on the appearance quality of the tower is high; (4) the requirements on the crack resistance and the durability of the tower wall are high; (5) the construction period of the tower is short. When the lower tower column internal force of the main tower is very large and the steel plate of the steel tower is very thick, the steel shell concrete combined tower with high bearing capacity is more superior to the steel tower, the thickness of the steel shell concrete combined tower can be reduced, the processing difficulty is reduced, the manufacturing cost is saved, and when the upper tower column is used, the problem of the increase of the self weight of the structure along with the increase of the modeling size is solved, or the stress requirement of the upper tower column of the main tower of a cable-stayed bridge is reduced, and the steel tower structure is more suitable.

Therefore, how to provide a design form of the main tower of the bridge structure, which has excellent construction and service performance and can combine aesthetic appearance and mechanical requirements, is a technical problem to be solved urgently in the industry at present. In order to solve the technical problem, a hybrid tower structure form in which an upper tower column is a steel tower and a lower tower column is a steel shell concrete combined tower starts to rise, and the structural design of a joint section of the steel tower and the steel shell concrete combined tower is very important.

Disclosure of Invention

The invention aims to provide a combined section structure of a steel tower and a steel shell concrete combined tower of a hybrid tower, which has the advantages of simple structure, low construction cost, good force transmission effect, safety and reliability.

The purpose of the invention is realized by the following technical scheme: the combined section structure of the steel tower and the steel shell concrete combined tower of the hybrid tower is characterized by comprising a pressure-bearing partition plate, wherein the pressure-bearing partition plate is transversely arranged at the junction position of the steel tower and the steel shell concrete combined tower on an upper tower column, the outer tower wall and the inner tower wall of the lower tower column and the upper tower column respectively extend up and down to be connected into a whole, the pressure-bearing partition plate is positioned between the outer tower wall and the inner tower wall, the inner edge and the outer edge of the pressure-bearing partition plate are respectively connected with the inner tower wall and the outer tower wall, the upper surface of the pressure-bearing partition plate is connected with the lower ends of vertical ribs on the inner tower wall and the outer tower wall of the steel tower, the lower surface of the pressure-bearing partition plate is connected with the upper ends of the vertical ribs on the inner tower wall and the outer tower wall of the steel shell concrete combined tower, and concrete pouring holes are formed in the pressure-bearing partition plate.

On the basis of adopting a mixed tower structure form that an upper tower column is a steel tower and a lower tower column is a steel shell concrete combined tower, the inner tower wall, the outer tower wall and the bin-dividing steel plate of a combination section of the steel tower and the steel shell concrete combined tower are communicated continuously, so that the force flow of the tower wall of the steel tower can be continuously transmitted to the steel shell of the steel shell concrete combined tower.

According to the invention, the vertical ribs on the inner tower wall of the steel tower correspond to the vertical ribs on the inner tower wall of the steel shell concrete combined tower up and down, the vertical ribs on the outer tower wall of the steel tower correspond to the vertical ribs on the outer tower wall of the steel shell concrete combined tower up and down, and the centers of the vertical ribs are aligned to ensure the continuity of force flow.

The positions of the vertical ribs on the inner tower wall and the outer tower wall of the steel tower, which are close to the pressure-bearing partition plate, are gradually increased from top to bottom to form the height-increasing vertical ribs, the positions of the vertical ribs on the inner tower wall and the outer tower wall of the steel shell concrete combined tower, which are close to the pressure-bearing partition plate, are gradually increased from bottom to top to form the height-increasing vertical ribs, and the heights of the height-increasing vertical ribs and the flanges of the steel tower are the same as the height-increasing vertical ribs of the steel shell concrete combined tower.

Vertical bin dividing steel plates are arranged in an upper tower column and a lower tower column, the bin dividing steel plates in the upper tower column and the lower tower column correspond to each other up and down, vertical ribs are arranged on the bin dividing steel plates, the vertical ribs on the bin dividing steel plates in the upper tower column correspond to the vertical ribs on the bin dividing steel plates in the lower tower column up and down, the parts, close to pressure-bearing partition plates, of the vertical ribs on the bin dividing steel plates in the upper tower column are gradually increased to be height-increasing vertical ribs from top to bottom, flanges are arranged on the height-increasing vertical ribs, the parts, close to the pressure-bearing partition plates, of the vertical ribs on the bin dividing steel plates in the lower tower column are gradually increased to be height-increasing vertical ribs from bottom to top, and the heights of the height-increasing vertical ribs and the flanges on the bin dividing steel plates in the upper tower column are the same as the heights of the height-increasing vertical ribs on the bin dividing steel plates in the lower tower column; the lower ends of the upper tower column internal bin steel plate and the vertical ribs thereof are connected with the upper surface of the pressure-bearing partition plate, and the upper ends of the lower tower column internal bin steel plate and the vertical ribs thereof are connected with the lower surface of the pressure-bearing partition plate.

Shear nails are arranged on the lower surface of the pressure-bearing partition plate, the inner surface of the outer tower wall and the outer surface of the inner tower wall of the steel shell concrete combined tower and the bin-dividing steel plates in the lower tower column, holes are formed in the height-variable vertical ribs of the steel shell concrete combined tower and the height-variable vertical ribs on the bin-dividing steel plates in the lower tower column, and reinforcing steel bars penetrate through the holes, so that the vertical ribs of the steel tower, the vertical ribs of the steel shell concrete combined tower and the reinforcing steel bars form PBL shear keys. The shear nails are arranged on the lower surface of the pressure-bearing partition plate, which is in contact with concrete, and the tower wall of the steel shell concrete combined tower, and are matched with the pressure-bearing partition plate and the vertical ribs penetrating through the reinforcing steel bars to uniformly transmit the internal force of the steel tower to the concrete, so that overlarge local stress or void of the concrete is avoided, and the synergy of the stress of the steel shell and the concrete is ensured.

The hole edge of the concrete pouring hole is provided with the folded edge which is bent upwards, the folded edge is used as a stiffening rib of the pressure-bearing partition plate before concrete is poured, the rigidity and the integral integrity of the sections of the pressure-bearing partition plate can be ensured, the concrete can be poured in a super-pouring mode, the folded edge is beneficial to discharging air bubbles below the pressure-bearing partition plate through pressure difference formed by the super-pouring, and the pouring compactness of the concrete is improved.

The invention is provided with vibrating holes at the corner positions of the pressure-bearing partition plate.

The pressure-bearing partition plate is provided with a plurality of exhaust holes, and the exhaust holes are close to the outer tower wall, the inner tower wall or the bin-dividing steel plate.

The widths of the upper parts of the flanges of the variable-height vertical ribs of the steel tower are consistent, and the lower parts of the flanges are in a dovetail shape.

The thickness of the pressure-bearing separator is 20-50 mm.

According to the invention, the multilayer reinforcing steel bar net rack is arranged below the pressure-bearing partition plate, the reinforcing steel bar net rack and the reinforcing steel bars are lapped to form a grid skeleton structure, on one hand, the anti-cracking capability of the concrete surface is enhanced by utilizing the net rack reinforcing steel bars, on the other hand, the compressive stress of the pressure-bearing partition plate and the stress transmitted through the PBL shear keys are transmitted to the deep-layer concrete, and the uniform stress of the concrete is better ensured.

Compared with the prior art, the invention has the following remarkable effects:

(1) on the basis of adopting the structural form of a mixed tower with an upper tower column being a steel tower and a lower tower column being a steel shell concrete combined tower, the inner wall and the outer wall of the combined section of the steel tower and the steel shell concrete combined tower are communicated with the bin-dividing steel plates continuously, so that the force flow of the tower wall of the steel tower can be continuously transmitted to the steel shell of the steel shell concrete section combined tower.

(2) According to the invention, the variable-height T rib is welded on the pressure-bearing partition plate in the steel tower above the pressure-bearing partition plate, the variable-height PBL plate rib is welded on the combined tower below the pressure-bearing partition plate, part of internal force of the vertical plate in the steel tower is diffused into concrete through the variable-height T rib, the pressure-bearing partition plate, the variable-height PBL plate rib below the partition plate and the shear nails on the vertical plate, and the load of the steel structure of the main tower can be diffused into the concrete as soon as possible.

(3) The vertical ribs of the steel tower and the vertical ribs of the steel shell concrete combined tower are aligned in the center to ensure the continuity of force flow.

(4) According to the invention, the shear nails are arranged on the lower surface of the pressure-bearing partition plate, which is in contact with concrete, and the tower wall of the steel shell concrete combined tower, and are matched with the pressure-bearing partition plate and the vertical ribs penetrating through the reinforcing steel bars to uniformly transfer the internal force of the steel tower to the concrete, so that excessive local stress or void of the concrete is avoided, and the synergy of the stress of the steel shell and the concrete is ensured.

(5) The hole edge of the concrete pouring hole is provided with the folded edge which is bent upwards, the folded edge is used as a stiffening rib of the pressure-bearing partition plate before concrete is poured, the rigidity and the integral integrity of the sections of the pressure-bearing partition plate can be ensured, the concrete can be super-poured during the concrete pouring, and the folded edge is beneficial to discharging air bubbles below the pressure-bearing partition plate through the pressure difference formed by the super-pouring, so that the pouring compactness of the concrete is increased.

(6) According to the invention, the multilayer reinforcing steel bar net rack is arranged below the pressure-bearing partition plate, and the reinforcing steel bar net rack and the reinforcing steel bars are lapped to form a grid skeleton structure, so that on one hand, the anti-cracking capability of the concrete surface is enhanced by using the net rack reinforcing steel bars, and on the other hand, the compressive stress of the pressure-bearing partition plate and the stress transmitted through the PBL shear keys are transmitted to the deep-layer concrete, so that the uniform stress of the concrete is better ensured.

(7) The invention is applied to the mixed tower structure of the steel tower and the steel shell concrete combined tower, can realize the modeling diversity of the main tower structures of cable bearing bridges such as a cable-stayed bridge, a suspension bridge and the like, provides more choices and ideas for urban landscape bridges, and has the advantages of simple structure, low construction cost, strong practicability and suitability for wide popularization and use.

Drawings

The invention is described in further detail below with reference to the figures and the specific embodiments.

FIG. 1 is a schematic cross-sectional view of a steel tower of the present invention adjacent a pressure-containing deck;

FIG. 2 is one of the schematic vertical cross-sectional views of the interface of the upper and lower towers of the present invention;

FIG. 3 is a second schematic vertical cross-sectional view of the interface between the upper and lower towers of the present invention;

fig. 4 is a schematic view of the lower tower column grid framework structure of the present invention.

Detailed Description

As shown in fig. 1 to 4, the combined section structure of a steel tower and a steel shell concrete combined tower of a hybrid tower of the present invention comprises a pressure-bearing partition plate 1 with a thickness of 20mm to 50mm, wherein the pressure-bearing partition plate 1 is transversely arranged at a junction position where an upper tower column is a steel tower 2 and a lower tower column is a steel shell concrete combined tower 3, outer tower walls 4 of the lower tower column and the upper tower column extend up and down to be connected into a whole, inner tower walls 5 of the lower tower column and the upper tower column extend up and down to be connected into a whole (a central cavity surrounded by the inner tower walls is usually an elevator and ladder space), and bin-divided steel plates 6 of the lower tower column and the upper tower column (a plurality of bins are separated by the bin-divided steel plates 6 according to the size and shape of the space between the outer tower walls 4 and the inner tower walls 5) are vertically corresponding to each other, that is, that the outer tower walls 4, the inner tower walls 5 and the bin-divided steel plates 6 of the steel shell concrete combined tower 3 are continuously penetrated through the steel tower 2. The inner edge of the pressure-bearing partition plate 1 is welded with the inner tower wall 5, the outer edge of the pressure-bearing partition plate 1 is welded with the outer tower wall 6, the lower end of the bin-dividing steel plate in the upper tower column is welded with the pressure-bearing partition plate 1, and the upper end of the bin-dividing steel plate in the lower tower column is welded with the pressure-bearing partition plate 1.

Vertical ribs 7 are arranged on the outer tower wall 4, the inner tower wall 5 and the bin dividing steel plates 6 of the steel tower 2 and the steel shell concrete combined tower 3, the vertical ribs 7 on the outer tower wall 4 of the steel tower 2 correspond to the vertical ribs 7 on the outer tower wall 4 of the steel shell concrete combined tower 3 up and down, the vertical ribs 7 on the inner tower wall 5 of the steel tower 2 correspond to the vertical ribs 7 on the inner tower wall 5 of the steel shell concrete combined tower 3 up and down, the vertical ribs 7 on the bin dividing steel plates 6 in the steel tower 2 correspond to the vertical ribs 7 on the bin dividing steel plates 6 in the steel shell concrete combined tower 3 up and down, and the centers of the vertical ribs are aligned to ensure the continuity of force flow. The parts of the outer tower wall 4, the inner tower wall 5 and the vertical ribs 7 on the bin steel plates 6 of the steel tower 2, which are close to the pressure-bearing partition plate 1, are gradually increased from top to bottom to form height-increasing vertical ribs 9, flanges 8 are arranged on the height-increasing vertical ribs 9, the widths of the upper parts of the flanges 8 are consistent, the lower parts of the flanges 8 are in a dovetail shape, and the height-increasing vertical ribs 9 and the lower ends of the flanges 8 are welded on the upper surface of the pressure-bearing partition plate 1. The parts of the vertical ribs 7 on the outer tower wall 4, the inner tower wall 5 and the bin-dividing steel plates 6 of the steel shell concrete combined tower 3, which are close to the pressure-bearing partition plate 1, are gradually increased from bottom to top to form the height-increasing vertical ribs 9, and the upper ends of the height-increasing vertical ribs 9 are welded on the lower surface of the pressure-bearing partition plate 1. The height of the height-variable vertical rib 9 and the flange 8 in the steel tower 2 is the same as the height of the height-variable vertical rib 9 in the steel shell concrete combined tower 3. Vertical ribs 7 on the inner tower wall 5 and the outer tower wall 4 of the steel tower 2 are arranged along the periphery of the inner tower wall to form a plurality of vertical ribs, vertical ribs 7 on the inner tower wall 5 and the outer tower wall 4 of the steel shell concrete combined tower 3 are arranged along the periphery of the outer tower wall to form a plurality of vertical ribs, and vertical ribs 7 on the bin-dividing steel plates 6 are arranged along the width direction of the bin-dividing steel plates to form a plurality of vertical ribs.

The concrete pouring holes 10 are formed in the pressure-bearing partition plate 1, the edges of the concrete pouring holes 10 are provided with the folded edges 11 which are bent upwards, before concrete is poured, the folded edges 11 are used as stiffening ribs of the pressure-bearing partition plate 1, the rigidity and the integral integrity of segments of the pressure-bearing partition plate 1 can be guaranteed, super-pouring can be carried out during concrete pouring, and the folded edges 11 are beneficial to discharging air bubbles below the pressure-bearing partition plate 1 through pressure difference formed by the super-pouring, so that the concrete pouring compactness is increased. The corner position of the pressure-bearing clapboard 1 is provided with a vibrating hole 12, and the distance between the vibrating hole 12 and the board edge is about 100 mm. The pressure-bearing partition plate 1 is provided with a plurality of exhaust holes 13, and some of the exhaust holes 13 are close to the outer tower wall 4, some of the exhaust holes 13 are close to the inner tower wall 5, and some of the exhaust holes 13 are close to the bin-dividing steel plate 6.

Shear nails 14 are arranged on the lower surface of the pressure-bearing partition plate 1, the inner surface of the outer tower wall 4 and the outer surface of the inner tower wall 5 of the steel shell concrete combined tower 3 and the bin-divided steel plates 6 in the lower tower column, the shear nails 14 are weld nails, the vertical heightening ribs 9 of the steel shell concrete combined tower 3 and the vertical heightening ribs 9 on the bin-divided steel plates 6 in the lower tower column are both provided with holes, and reinforcing steel bars 15 penetrate through the holes, so that the vertical ribs of the steel tower, the vertical ribs of the steel shell concrete combined tower and the reinforcing steel bars form PBL shear keys.

The thickened pressure-bearing partition plate 1 is arranged at the junction position of a steel tower 2 and a steel shell concrete combined tower 3, the steel tower 2 above the pressure-bearing partition plate 1 is welded on the pressure-bearing partition plate 1 through a height-variable vertical rib, the steel shell concrete combined tower 3 below the pressure-bearing partition plate 1 is welded through a height-variable PBL plate rib, partial internal force of an outer tower wall, an inner tower wall and a bin-dividing steel plate of the steel tower is diffused into concrete 17 through the height-variable vertical rib, the pressure-bearing partition plate, the height-variable PBL plate rib below the pressure-bearing partition plate and a shear nail on a vertical plate, and the load of a main tower steel structure can be diffused into the concrete as soon as possible through the structure.

Referring to fig. 4, a multi-layer steel bar net rack 16 is arranged below the pressure-bearing partition plate 1, and the steel bar net rack 16 and the steel bars 15 are lapped to form a grid framework structure. On one hand, the anti-cracking capacity of the concrete surface is enhanced by the net rack reinforcing steel bars, and on the other hand, the pressure stress of the pressure-bearing partition plate and the stress transmitted by the PBL shear keys are transmitted to deep-layer concrete, so that the uniform stress of the concrete is better ensured.

The cross section contour lines of the outer tower wall and the inner tower wall can be in various combination forms such as rectangle, circle, ellipse, circular arc + straight line, polygon and the like.

The specific thickness of the pressure-bearing partition plate is determined according to the stress requirement of an actual structure.

The embodiments of the present invention are not limited thereto, and according to the above-mentioned contents of the present invention, the present invention can be modified, substituted or changed in other various forms without departing from the basic technical idea of the present invention.