Heat absorption tower structure with self-resetting energy consumption mechanism and construction method of heat absorption tower structure

Abstract

The invention belongs to the technical field of civil engineering structures of solar thermal power generation heat absorption towers, and particularly relates to a solar thermal power generation heat absorption tower structure with a damage-controllable self-resetting energy consumption mechanism and a construction method of the solar thermal power generation heat absorption tower structure. The integrated transition section is used for connecting a heat collector of the heat absorption tower and the lattice type bearing-heat dissipation integrated tower and comprises a force transmission transition truss, a self-resetting energy dissipation outer stand column and an inner side bearing-shear resistant steel truss barrel. The inner side load-bearing-shear-resisting steel truss barrel comprises a plurality of rigid inner stand columns which are evenly distributed around the inner ring of the center shaft of the force transmission transition truss, and a plurality of self-resetting energy dissipation outer stand columns which are evenly distributed around the outer ring of the center shaft of the force transmission transition truss. The heat collector steel structure pulls and presses the self-resetting energy dissipation outer stand columns through swinging under the action of a strong earthquake to dissipate earthquake input energy, and the rigid inner stand columns achieve vertical bearing and lateral shear resistance. By means of the structure, the anti-seismic performance of the heat absorption tower is remarkably improved.

Description

Technical Field

[0001] This invention belongs to the field of civil engineering structure technology of solar thermal power generation heat absorption towers, specifically relating to a solar thermal power generation heat absorption tower structure with a damage-controllable self-resetting energy dissipation mechanism and its construction method. Background Technology

[0002] Solar thermal power generation is an important direction for building a new clean and low-carbon energy system. However, the seismic intensity is generally high in areas of my country with abundant solar energy resources, which poses a severe challenge to the seismic design of solar thermal tower structures.

[0003] Traditional solar absorber tower systems typically use concrete for the lower structure and steel for the upper collector. This structural design suffers from long construction periods, numerous embedded parts, and complex layout. More importantly, it has poor energy dissipation and vibration damping effects, making the structure susceptible to damage during earthquakes, and resulting in difficult and costly post-earthquake repairs.

[0004] Therefore, in order to utilize solar energy resources more safely and efficiently, there is an urgent need for a new type of heat absorption tower structure that can simplify engineering procedures, shorten installation time, and significantly improve energy consumption reduction, vibration reduction, and self-resetting capabilities. Summary of the Invention

[0005] The purpose of this invention is to provide a solar thermal power generation absorber tower structure and its construction method with a damage-controllable self-resetting energy dissipation mechanism, in order to solve the problems of poor seismic performance, large residual deformation after earthquakes, difficult repair, and long construction period of traditional absorber tower structures. It aims to improve the energy dissipation performance and self-resetting capability of the absorber tower, and to achieve rapid assembly-based construction of the structure.

[0006] To solve the above-mentioned technical problems, the present invention is implemented as follows: This invention provides an integrated transition section for a heat-absorbing tower with a self-resetting energy-dissipating mechanism. The integrated transition section connects the heat collector of the heat-absorbing tower and the lattice-type load-bearing and heat-dissipating integrated tower frame. The integrated transition section includes a force-transmitting transition truss, a self-resetting energy-dissipating outer column, and an inner load-bearing and shear-resistant steel truss. The inner load-bearing and shear-resistant steel truss includes multiple rigid inner columns evenly arranged in the inner ring around the central axis of the force transmission transition truss. The bottom of the multiple rigid inner columns is connected to the top of the lattice-type load-bearing and heat dissipation integrated tower. The top of the multiple rigid inner columns is connected to the bottom of the upper butterfly-shaped solar collector assembly truss through rubber-metal multi-layer composite supports. The force transmission transition truss includes an upper butterfly-shaped solar collector assembly truss and a lower support connection truss; the top of the upper butterfly-shaped solar collector assembly truss is provided with an assembly truss for installing solar collectors, and the lower support connection truss is welded to the top of the lattice-type load-bearing-heat dissipation integrated tower. The bottom surface of the upper butterfly-shaped solar collector assembly truss matches the top surface of the lower support connection truss in shape and size. Multiple self-resetting energy-dissipating external columns are evenly distributed around the outer ring of the force-transfer transition truss's central axis, and are supported between the upper butterfly-shaped solar collector assembly truss and the lower support connection truss, forming an outer bending-resistant self-resetting energy-dissipating steel truss. Through design and control, the self-resetting energy-dissipating external columns first enter the nonlinear stage under strong earthquake action. The solar collector steel structure then uses swaying to pull and compress the self-resetting energy-dissipating external columns, dissipating the earthquake input energy.

[0007] Preferably, the rubber-metal multilayer composite support comprises a composite layer structure formed by alternating layers of rubber and multiple layers of steel plates and vulcanization bonding.

[0008] Preferably, the rigid inner column is further fixed to the lower support connecting truss by a reinforcing diagonal brace, and two adjacent rigid inner columns are further fixed by a reinforcing diagonal brace.

[0009] Preferably, the lattice-type integrated load-bearing and heat dissipation tower is a hexagonal prestressed steel-concrete composite tower structure; it consists of six prestressed hollow sandwich steel-concrete composite columns, forming a hexagonal lattice-type load-bearing tower column with a smaller top and a larger bottom, with reinforcing diagonal braces connecting adjacent columns and / or any two columns, together forming the lattice-type integrated load-bearing and heat dissipation tower; the lower part of the composite column is provided with a lower flange for connection to the steel pile, and the top of the composite column is provided with a flange for connection to the bottom of the rigid inner column; the bottom of the rigid inner column is provided with a flange that matches the flange.

[0010] Preferably, the tops of two adjacent composite columns are connected by a ribbed steel plate-concrete sandwich wall. The sandwich wall consists of two parallel steel plates, a stiffening rib between the two steel plates, and concrete poured between the steel plates. The two ends of the steel plates are welded to the tops of the two adjacent composite columns, respectively.

[0011] Preferably, the upper butterfly-shaped solar collector assembly truss includes a horizontally arranged annular upper support-vibration transmission dual-function base frame, an inclined butterfly-shaped top frame with a tapered surface that is larger at the top and smaller at the bottom, and a bracket connecting and supporting the upper support-vibration transmission dual-function base frame and the butterfly-shaped top frame, together forming a butterfly-shaped solar collector assembly truss structure; the top of the self-resetting energy-dissipating outer column is fixed to the outer ring of the upper support-vibration transmission dual-function base frame, and the top of the rigid inner column is fixed to the inner ring of the upper support-vibration transmission dual-function base frame; the assembly truss is set at the inner ring of the butterfly-shaped top frame.

[0012] Preferably, the lower support connecting truss consists of a horizontally arranged annular lower support-vibration transmission dual-function top frame, an inclined bowl-shaped base frame with a tapered surface that is larger at the top and smaller at the bottom, and a bracket connecting and supporting the lower support-vibration transmission dual-function top frame and the bowl-shaped base frame, which together form a bowl-shaped support truss structure; the middle part of the lower support connecting truss is welded to the outer wall of the top of the lattice-type load-bearing-heat dissipation integrated tower; and the bottom of the self-resetting energy-dissipating external column is fixed to the outer ring of the lower support-vibration transmission dual-function top frame.

[0013] Preferably, the prestressed hollow steel tube concrete composite column includes an outer steel tube, an inner steel tube, prestressing tendons, and a ring diaphragm; the ring diaphragm is welded to the inner wall of the outer steel tube, the inner steel tube is inserted into the central hole of the ring diaphragm, and the prestressing tendons are anchored in the circumferential holes of the ring diaphragm; concrete is poured into the cavity between the outer steel tube and the inner steel tube.

[0014] Preferably, each of the self-resetting energy-dissipating outer columns includes a core unit, an outer constraint unit, and a pre-stressed pre-compression system.

[0015] The present invention also provides a heat-absorbing tower structure with a self-resetting energy-consuming mechanism, comprising a heat collector arranged from top to bottom, a lattice-type load-bearing-heat dissipation integrated tower and steel piles, and further comprising an integrated transition section with a self-resetting energy-consuming mechanism for connecting the heat collector and the lattice-type load-bearing-heat dissipation integrated tower as described above.

[0016] The present invention also provides a construction method for an integrated transition section of a heat-absorbing tower with a self-resetting energy-consuming mechanism, comprising the following steps: S1, pre-positioning and pile driving to form steel piles; S2, a lattice-type load-bearing and heat dissipation integrated tower is fabricated on steel piles on site; S3, the inner load-bearing-shear steel truss and force-transfer transition truss of the integrated transition section are installed on top of the lattice-type load-bearing-heat dissipation integrated tower, specifically including: The lower support connecting truss is installed on the top of the combined column of the lattice-type load-bearing and heat dissipation integrated tower by welding and bolting. Rigid inner columns are installed on top of the combined column via flanges and matching flanges at the top of the lattice-type load-bearing and heat dissipation integrated tower to complete the installation of the inner load-bearing and shear-resistant steel truss of the integrated transition section. Install the upper butterfly-shaped solar collector assembly truss on the top of the inner load-bearing and shear-resistant steel truss; S4, hoist the solar collectors on site and install them on the assembly truss; S5. Position and install the self-resetting energy-dissipating external column to eliminate initial stress, thereby ensuring that the upper butterfly-shaped solar collector assembly truss can achieve the designed swaying energy dissipation and post-earthquake self-resetting functions.

[0017] Compared with the prior art, the advantages of this invention are as follows: (1) Excellent seismic resistance and energy dissipation performance: By introducing a self-resetting energy dissipation section in the upper part of the integrated transition section, when an earthquake occurs, the outer self-resetting energy dissipation column can dissipate the seismic energy input from all directions through stretching and compression, which significantly improves the seismic resistance of the heat absorption tower.

[0018] (2) Outstanding self-recovery and repairability: The self-resetting energy-dissipating external columns used in the integrated transition section enable the structure to return to its initial state after being subjected to seismic forces, greatly reducing the residual deformation of the structure. At the same time, the component can be directly disassembled and replaced after damage, improving the rapid recovery capability of the heat-absorbing tower after earthquakes.

[0019] (3) High efficiency in construction and environmental benefits: All components of the system can be prefabricated in the factory and assembled on site using dry connection. This not only ensures the quality of construction, but also significantly improves construction efficiency, reduces construction costs, shortens the construction period and reduces environmental pollution.

[0020] (4) High structural efficiency and material saving: The lattice-type integrated load-bearing and heat dissipation tower integrates load-bearing and heat dissipation functions, which is conducive to ventilation and thermal management inside the tower. The columns of the tower are made of prestressed hollow sandwich steel tube concrete, which has high strength and ductility. The hollow design of the inner steel tube reduces the self-weight of the structure and saves materials. At the same time, the use of pre-tensioned prestressing tendons improves construction efficiency. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein: Figure 1 A three-dimensional structural diagram of the heat absorption tower system with a self-resetting energy dissipation mechanism provided by the present invention.

[0022] Figure 2 The front view of the heat absorption tower structure system with a self-resetting energy dissipation mechanism provided by the present invention.

[0023] Figure 3 A three-dimensional structural diagram of the upper half of the integrated transition section provided by the present invention.

[0024] Figure 4 The upper half of the integrated transition section structure provided by the present invention is along Figure 3 A cross-sectional view in the vertical direction.

[0025] Figure 5 A three-dimensional structural diagram of the lower half of the integrated transition section and the top of the tower provided by the present invention.

[0026] Figure 6 This is a three-dimensional structural diagram of the top of the tower provided by the present invention.

[0027] Figure 7 For along Figure 5 A sectional view along the BB cutting direction in the image.

[0028] Figure 8 This is a schematic diagram of the connection structure between the rigid inner column and the prestressed hollow sandwich steel tube concrete composite column provided by the present invention.

[0029] Figure 9 A cross-sectional schematic diagram of the prestressed hollow sandwich steel tube concrete composite column provided by the present invention.

[0030] Key reference numerals: 1. Solar collector; 2. Integrated transition section; 20. Force transmission transition truss; 21. Upper butterfly-shaped solar collector assembly truss; 211. Upper support-vibration transmission dual-function base frame; 212. Butterfly-shaped top frame; 22. Self-resetting energy-dissipating external column; 23. Lower support connection truss; 231. Lower support-vibration transmission dual-function top frame; 232. Bowl-shaped base frame; 24. Rigid inner column; 25. Rubber-metal multi-layer composite support; 26. Assembly truss; 30. Inner load-bearing-shear truss; 31. Prestressed hollow sandwich steel tube concrete composite column; 31 01. Outer steel pipe; 3102. Inner steel pipe; 3103. Prestressed tendon; 3104. Ring diaphragm; 32. Sandwich composite wall; 3201. Steel plate; 3202. Stiffening rib; 3301. Flange; 3302. Stiffening rib; 3303. Bolt; 3320. Flange; 35. Star-shaped support truss unit; 4. Lattice-type load-bearing and heat dissipation integrated tower; 41. Diagonal brace; 42. Lower flange; 5. Steel pile. Detailed Implementation

[0031] The technical solutions in the embodiments of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the present invention, and not all of it.

[0032] It should be noted that in the description of this invention, the terms "upper", "lower", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and do not indicate or imply that the device or element referred to must have a specific orientation. Therefore, they should not be construed as limiting this invention.

[0033] like Figures 1 to 9 As shown, the present invention provides a heat-absorbing tower structure with a self-resetting energy-consuming mechanism, including a heat collector 1, a lattice-type integrated load-bearing and heat-dissipating tower 4, and steel piles 5 arranged from top to bottom. In this embodiment, it also includes the integrated transition section 2, which is used to connect the heat collector 1 and the lattice-type integrated load-bearing and heat-dissipating tower 4 of the heat-absorbing tower.

[0034] Among them, steel piles 5 are pre-positioned and driven; lattice-type load-bearing and heat dissipation integrated tower 4 is fabricated on site and connected to steel piles 5.

[0035] In this embodiment, the lattice-type load-bearing and heat dissipation integrated tower 4 is a hexagonal prestressed steel tube concrete tower structure; it is composed of six prestressed hollow sandwich steel tube concrete composite columns 31, forming a hexagonal lattice-type load-bearing tower column with a smaller top and a larger bottom. Adjacent composite columns 31 and / or any two composite columns 31 are connected by reinforcing diagonal braces 41, which together form the lattice-type load-bearing and heat dissipation integrated tower 4; the lower part of the composite column 31 is provided with a lower flange 42 for connecting with the steel pile 5, and the top of the composite column 31 is provided with a flange 3301 for connecting the bottom of the rigid inner column 24; the bottom of the rigid inner column 24 is provided with a flange 3320 that matches the flange 3301.

[0036] Preferably, a stiffening rib 3302 is provided between the top of the composite column 31 and the flange 3301, and the flange 3301 and the flange 3320 can be connected by bolts 3303. The flange 3301 is welded to the top of the prestressed hollow sandwich steel pipe concrete composite column 31 and reinforced by welding with four stiffening ribs 3302. The lower part of the rigid inner column 24 is connected to the flange 3301 by bolts 3303.

[0037] Specifically, the prestressed hollow steel-tube concrete composite column 31 includes an outer steel tube 3101, an inner steel tube 3102, prestressing tendons 3103, and an annular diaphragm 3104. The annular diaphragm 3104 is welded to the inner wall of the outer steel tube 3101, the inner steel tube 3102 is inserted into the central hole of the annular diaphragm 3104, and the prestressing tendons 3103 are anchored in the circumferential holes of the annular diaphragm 3104. Concrete is poured into the cavity between the outer steel tube 3101 and the inner steel tube 3102. The construction adopts the pre-tensioning method, that is, after the prestressing tendons 3103 are tensioned and anchored, concrete is poured into the cavity between the outer steel tube 3101 and the inner steel tube 3102. The inner steel tube 3102 is fixed to the center of the outer steel tube 3101, and its top surface is slightly lower than the upper surface of the flange 3301.

[0038] The steel pipes can be pre-made threaded steel pipes, while the diagonal braces 41 are made of ordinary steel pipes. The angle between the prestressed hollow steel-concrete composite column 31 and the ground can be adjusted according to the tower height. The specific strength grades of the steel pipes, concrete, and other materials can be selected by those skilled in the art based on construction needs. This application will not elaborate further on this point.

[0039] The lattice-structured integrated load-bearing and heat dissipation tower 4 integrates load-bearing and heat dissipation functions, which is beneficial to ventilation and thermal management inside the tower; the prestressed hollow sandwich steel tube concrete composite column 31 also further helps to dissipate heat and improve the seismic resistance of the tower.

[0040] Preferably, the tops of two adjacent composite columns 31 are connected by a ribbed steel plate-concrete sandwich wall 32. The sandwich wall 32 comprises two parallel steel plates 3201, a stiffening rib 3202 disposed between the two steel plates 3201, and concrete poured between the steel plates 3201. The two ends of the steel plates 3201 are welded to the tops of the two adjacent composite columns 31. The stiffening rib 3202 is welded to the inner side of the steel plates 3201. Typically, a removable bottom formwork can be set below the two steel plates 3201, and then concrete can be poured between the two steel plates 3201. In other embodiments, a bottom steel plate can also be added to facilitate concrete pouring.

[0041] The sandwich composite wall 32 is welded to the upper part of the prestressed hollow sandwich steel tube concrete composite column 31, and the flange 3301 is welded to the top of the prestressed hollow sandwich steel tube concrete composite column 31.

[0042] Specifically, the integrated transition section 2 includes a force-transmitting transition truss 20, a self-resetting energy-dissipating external column 22, and an inner load-bearing-shear steel truss 30.

[0043] The inner load-bearing and shear-resistant steel truss 30 includes multiple rigid inner columns 24 evenly arranged in the inner ring around the central axis of the force transmission transition truss 20. The bottom ends of the multiple rigid inner columns 24 are connected to the top of the lattice-type load-bearing and heat dissipation integrated tower 4. The tops of the multiple rigid inner columns 24 are connected to the bottom of the upper butterfly-shaped solar collector assembly truss 21 through rubber-metal multilayer composite supports 25.

[0044] The force transmission transition truss 20 includes an upper butterfly-shaped solar collector assembly truss 21 and a lower support connection truss 23. The top of the upper butterfly-shaped solar collector assembly truss 21 is provided with an assembly truss 26 for installing the solar collector 1. The lower support connection truss 23 is welded to the top of the lattice-type load-bearing-heat dissipation integrated tower 4. The bottom surface of the upper butterfly-shaped solar collector assembly truss 21 and the top surface of the lower support connection truss 23 are matched in shape and size.

[0045] Multiple self-resetting energy-dissipating external columns 22 are evenly distributed around the outer ring of the force-transfer transition truss 20's central axis and supported between the upper butterfly-shaped solar collector assembly truss 21 and the lower support connection truss 23, forming an outer bending-resistant self-resetting energy-dissipating steel truss. Through design and control, the self-resetting energy-dissipating external columns 22 first enter the nonlinear stage under strong earthquake action. The solar collector steel structure then uses swaying to pull and compress the self-resetting energy-dissipating external columns 22, dissipating the earthquake input energy.

[0046] Preferably, the rubber-metal multilayer composite support 25 comprises a composite layer structure formed by alternating layers of rubber and steel plates bonded together by vulcanization. Specifically, the alternating layers of rubber and steel plates bonded together by vulcanization provide high elasticity and damping, while the steel plates provide vertical stiffness. Under load, the rubber undergoes shear or compression deformation, thus dissipating energy; the steel plates give the support a "hard load-bearing" capacity in the vertical direction, enabling it to transfer the weight of the upper solar collector 1 to the lower lattice-type load-bearing and heat dissipation integrated tower 4.

[0047] Preferably, each of the self-resetting energy-dissipating outer columns 22 includes a core unit, an outer restraint unit, and a pre-stressed system. It should be further noted that the self-resetting energy-dissipating outer column 22 is a self-resetting buckling-restrained brace, which typically consists of a core unit, an outer restraint unit, and a pre-stressed system such as pre-tensioned shape memory alloy rods or steel strands. Under seismic loading, the core unit will not buckle as a whole under compression, and the pre-stressed system provides restoring force under tension, thereby enabling the brace to automatically return to its initial position after dissipating seismic energy.

[0048] A key installation step is that the self-resetting energy-dissipating external column 22 should only be positioned and installed after the collector 1 is assembled and installed, in order to eliminate the initial stress and ensure that the upper butterfly collector assembly truss 21 can achieve the designed swaying energy dissipation and post-earthquake self-resetting function.

[0049] When the integrated transition section of the heat absorption tower with a self-resetting energy dissipation mechanism is subjected to seismic load, the outer self-resetting energy dissipation outer column 22 in the integrated transition section 2 can undergo tension and compression, while the rubber-metal multilayer composite support 25 at the top of the inner rigid column 24 undergoes coordinated deformation, achieving swaying energy dissipation and consuming part of the seismic energy. After the seismic load dissipates, the outer self-resetting energy dissipation outer column 22 gradually recovers, and the integrated transition section 2 recovers, enhancing the rapid recovery capability of the heat absorption tower after an earthquake.

[0050] Preferably, the rigid inner column 24 is further fixed to the lower support connecting truss 23 by a reinforcing diagonal brace, and two adjacent rigid inner columns 24 are further fixed by a reinforcing diagonal brace.

[0051] Preferably, the upper butterfly-shaped solar collector assembly truss 21 includes a horizontally arranged annular upper support-vibration transmission dual-function base frame 211 and a butterfly-shaped top frame 212 disposed above the base frame 211, together forming a butterfly-shaped solar collector assembly truss structure; the top of the self-resetting energy-dissipating outer column 22 is fixed to the outer ring of the upper support-vibration transmission dual-function base frame 211, and the top of the rigid inner column 24 is fixed to the inner ring of the upper support-vibration transmission dual-function base frame 211; the assembly truss 26 is disposed at the inner ring of the butterfly-shaped top frame 212; The lower support connecting truss 23 is horizontally arranged with an annular lower support-vibration transmission dual-function top frame 231 and a bowl-shaped base frame 232 located below the top frame 231, which together form a bowl-shaped support truss structure; the middle part of the lower support connecting truss 23 is welded to the outer wall of the top of the lattice-type load-bearing-heat dissipation integrated tower 4; the bottom of the self-resetting energy-dissipating outer column 22 is fixed on the outer ring of the lower support-vibration transmission dual-function top frame 231.

[0052] Preferably, in a preferred embodiment, a star-shaped support truss unit 35 is further provided in the space inside the hexagonal space formed by the tops of the six columns 31. The star-shaped support truss unit 35 is installed on the inner side of the upper part of the lattice-type load-bearing and heat dissipation integrated tower 4.

[0053] It is understandable that the connection between the various steel members of the above truss can be achieved by welding, bolting, or a combination of welding and bolting.

[0054] This embodiment also provides a construction method for an absorber tower structure with a self-resetting energy dissipation mechanism integrated transition section, as described above, including the following steps: S1, pre-positioning and pile driving to form steel pile 5; S2, a lattice-type load-bearing and heat dissipation integrated tower 4 is fabricated on the steel pile 5 on site; in other embodiments, the lattice-type load-bearing and heat dissipation integrated tower 4 can also be fabricated in a prefabricated manner and then hoisted on site. S3, the inner load-bearing and shear-resistant steel truss 30 and the force-transmitting transition truss 20 of the integrated transition section 2 are installed on the top of the lattice-type load-bearing and heat dissipation integrated tower 4, specifically including: The lower support connecting truss 23 is installed on the top of the column 31 of the lattice-type load-bearing-heat dissipation integrated tower 4 by welding and bolting. On the top of the lattice-type load-bearing-heat dissipation integrated tower 4, the rigid inner column 24 is installed on the top of the combined column 31 through flange 3301 and matching flange 3320 to complete the installation of the inner load-bearing-shear steel truss 30 of the integrated transition section 2. Install the upper butterfly-shaped solar collector assembly truss 21 on the top of the inner load-bearing and shear-resistant steel truss 30; S4, the solar collector 1 is hoisted on site and installed on the assembly truss 26; S5. Position and install the self-resetting energy-dissipating external column 22 to eliminate initial stress, thereby ensuring that the upper butterfly-shaped solar collector assembly truss 21 can achieve the designed swaying energy dissipation and post-earthquake self-resetting functions.

[0055] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. An integrated transition section of a heat-absorbing tower with a self-resetting energy-consuming mechanism, wherein the integrated transition section (2) is used to connect the heat collector (1) of the heat-absorbing tower and the lattice-type load-bearing-heat dissipation integrated tower (4), characterized in that, The integrated transition section (2) includes a force-transmitting transition truss (20), a self-resetting energy-dissipating outer column (22), and an inner load-bearing-shear steel truss (30); wherein, The inner load-bearing and shear-resistant steel truss (30) includes multiple rigid inner columns (24) evenly arranged in the inner ring around the central axis of the force transmission transition truss (20). The bottom of the multiple rigid inner columns (24) is connected to the top of the lattice-type load-bearing and heat dissipation integrated tower (4). The top of the multiple rigid inner columns (24) is connected to the bottom of the upper butterfly-shaped solar collector assembly truss (21) through a rubber-metal multilayer composite support (25). The force transmission transition truss (20) includes an upper butterfly-shaped solar collector assembly truss (21) and a lower support connection truss (23); the upper butterfly-shaped solar collector assembly truss (21) has an assembly truss (26) for installing the solar collector (1) at its top, and the lower support connection truss (23) is welded to the top of the lattice-type load-bearing-heat dissipation integrated tower (4). The bottom surface of the upper butterfly-shaped solar collector assembly truss (21) matches the shape and size of the top surface of the lower support connection truss (23). Multiple self-resetting energy-dissipating external columns (22) are evenly distributed around the outer ring of the force-transfer transition truss (20) around its central axis and supported between the upper butterfly-shaped solar collector assembly truss (21) and the lower support connection truss (23), forming an outer bending-resistant self-resetting energy-dissipating steel truss. Through design and control, the self-resetting energy-dissipating external columns (22) first enter the nonlinear stage under strong earthquake action. The solar collector steel structure uses swaying to pull and compress the self-resetting energy-dissipating external columns (22), dissipating the earthquake input energy.

2. The integrated transition section of the heat-absorbing tower with a self-resetting energy-consuming mechanism according to claim 1, characterized in that, The rubber-metal multilayer composite support (25) includes a composite layer structure formed by alternating layers of rubber and multiple layers of steel plates and vulcanization bonding.

3. The integrated transition section of the heat-absorbing tower with a self-resetting energy-consuming mechanism according to claim 1, characterized in that, The rigid inner column (24) is also fixed to the upper butterfly-shaped solar collector assembly truss (21) by a reinforcing diagonal brace, and two adjacent rigid inner columns (24) are also fixed to each other by a reinforcing diagonal brace.

4. The integrated transition section of the heat-absorbing tower with a self-resetting energy-consuming mechanism according to claim 1, characterized in that, The lattice-type load-bearing and heat dissipation integrated tower (4) is a hexagonal prestressed steel tube concrete tower structure; it is composed of six prestressed hollow sandwich steel tube concrete composite columns (31) forming a hexagonal lattice-type load-bearing tower column with a smaller top and a larger bottom. Adjacent composite columns (31) and / or any two composite columns (31) are connected by reinforcing diagonal braces (41), which together form the lattice-type load-bearing and heat dissipation integrated tower (4); the lower part of the composite column (31) is provided with a lower flange (42) for connecting with the steel pile (5), and the top of the composite column (31) is provided with a flange (3301) for connecting the bottom of the rigid inner column (24); the bottom of the rigid inner column (24) is provided with a flange (3320) that matches the flange (3301).

5. The integrated transition section of the heat-absorbing tower with a self-resetting energy-consuming mechanism according to claim 4, characterized in that, The tops of two adjacent composite columns (31) are connected by a ribbed steel plate-concrete sandwich wall (32). The sandwich wall (32) consists of two parallel steel plates (3201) and a stiffening rib (3202) between the two steel plates (3201), as well as concrete poured between the steel plates (3201). The two ends of the steel plates (3201) are respectively welded to the tops of the two adjacent composite columns (31).

6. The integrated transition section of the heat-absorbing tower with a self-resetting energy-consuming mechanism according to claim 5, characterized in that, The upper butterfly-shaped solar collector assembly truss (21) includes a horizontally arranged annular upper support-vibration transmission dual-function base frame (211) and a butterfly-shaped top frame (212) arranged above the base frame (211), together forming a butterfly-shaped solar collector assembly truss structure; the top of the self-resetting energy-dissipating outer column (22) is fixed on the outer ring of the upper support-vibration transmission dual-function base frame (211), and the top of the rigid inner column (24) is fixed on the inner ring of the upper support-vibration transmission dual-function base frame (211); the assembly truss (26) is arranged at the inner ring of the butterfly-shaped top frame (212). The lower support connecting truss (23) is horizontally arranged with an annular lower support-vibration transmission dual-function top frame (231) and a bowl-shaped base frame (232) located below the top frame (231), which together form a bowl-shaped support truss structure; the middle part of the lower support connecting truss (23) is welded to the outer wall of the top of the lattice-type load-bearing-heat dissipation integrated tower (4); the bottom of the self-resetting energy-dissipating outer column (22) is fixed on the outer ring of the lower support-vibration transmission dual-function top frame (231).

7. The integrated transition section of the heat-absorbing tower with a self-resetting energy-consuming mechanism according to claim 1, characterized in that, The prestressed hollow steel tube concrete composite column (31) includes an outer steel tube (3101), an inner steel tube (3102), prestressing tendons (3103), and an annular diaphragm (3104); the annular diaphragm (3104) is welded to the inner wall of the outer steel tube (3101), the inner steel tube (3102) is inserted into the central hole of the annular diaphragm (3104), and the prestressing tendons (3103) are anchored in the circumferential holes of the annular diaphragm (3104); concrete is poured into the cavity between the outer steel tube (3101) and the inner steel tube (3102).

8. The integrated transition section of the heat-absorbing tower with a self-resetting energy-consuming mechanism according to claim 1, characterized in that, Each of the self-resetting energy-dissipating outer columns (22) includes a core unit, an outer constraint unit, and a pre-stressed system.

9. A heat-absorbing tower structure with a self-resetting energy-consuming mechanism, comprising a heat collector (1) arranged from top to bottom, a lattice-type load-bearing and heat-dissipating integrated tower (4), and steel piles (5), characterized in that, It also includes an integrated transition section of the heat-absorbing tower with a self-resetting energy-consuming mechanism according to any one of claims 1-8 for connecting the heat collector (1) and the lattice-type load-bearing-heat dissipation integrated tower (4).

10. A construction method for an integrated transition section of a heat-absorbing tower with a self-resetting energy-consuming mechanism according to any one of claims 1-9, characterized in that, Including the following steps: S1, pre-positioning and driving the pile to form a steel pile (5). S2, a lattice-type load-bearing and heat dissipation integrated tower (4) is fabricated on the steel pile (5) on site. The lower part of the column (31) of the lattice-type load-bearing and heat dissipation integrated tower (4) is connected and fixed to the steel pile (5) through the lower flange (42). S3, the inner load-bearing-shear steel truss (30) and the force-transmitting transition truss (20) of the integrated transition section (2) are installed on the top of the lattice-type load-bearing-heat dissipation integrated tower (4), specifically including: The lower support connecting truss (23) is installed on the top of the combined column (31) of the lattice-type load-bearing-heat dissipation integrated tower (4) by welding and bolting. On the top of the lattice-type load-bearing-heat dissipation integrated tower (4), the rigid inner column (24) is installed on the top of the combined column (31) via flange (3301) and matching flange (3320) to complete the installation of the inner load-bearing-shear steel truss (30) of the integrated transition section (2). An upper butterfly-shaped solar collector assembly truss (21) is installed on the top of the inner load-bearing-shear steel truss (30). S4, the solar collector (1) is hoisted on site and installed on the assembly truss (26); S5, Position and install the self-resetting energy-dissipating external column (22) to eliminate initial stress, thereby ensuring that the upper butterfly collector assembly truss (21) can realize the designed swing energy dissipation and post-earthquake self-resetting function.

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