CN115992803A - Wind power tower, tower barrel and construction method thereof - Google Patents

Abstract

The invention provides a wind power tower, a tower barrel and a construction method thereof, wherein the tower barrel comprises: a multi-section regular polygon structure cylinder section (10), wherein the multi-section cylinder section (10) is sequentially connected to a preset height from bottom to top; each cylinder section (10) comprises a plurality of precast concrete templates (11), the precast concrete templates (11) are connected in a closed mode to form a regular polygon structure, each precast concrete template (11) comprises two precast wallboards (111) arranged at intervals and connecting pieces (113) for connecting the two precast wallboards (111), an accommodating space (112) is formed between the two precast wallboards (111), the accommodating spaces (112) of the precast concrete templates (11) are communicated with each other, and all the accommodating spaces (112) are filled with concrete in a pouring mode. The tower barrel provided by the embodiment of the invention utilizes the prefabricated concrete template product to fully combine the prefabricated wallboard with the cast-in-place concrete, so that the continuity of the barrel section in stress is ensured, and the structure of the tower barrel is safer and more reliable.

Description

Wind power tower, tower barrel and construction method thereof

Technical Field

The invention relates to the technical field of tower construction, in particular to a wind power tower, a tower and a construction method thereof.

Background

The concrete towers of the existing wind driven generators in the market are all precast concrete towers, and in order to ensure the productivity, the construction process needs to invest and build a large number of precast member production factories and molds necessary for member production, and has huge cost and needs a large amount of manpower.

The fully precast concrete tower is often not able to change the shape of a product at will in view of the cost of the mould, since each change implies investment in the mould.

The bottom diameter of the fully prefabricated concrete high tower barrel is generally larger, and the pipe joints at the bottom of the tower barrel are formed by splicing two to three prefabricated pipe pieces in consideration of the feasibility of transportation. The design of the splicing nodes causes discontinuous stress at the vertical splicing joint of the duct piece, and only a simple connecting structure can increase the resistance.

Disclosure of Invention

The present invention has been made based on the findings and knowledge of the inventors regarding the following facts and problems: the invention uses the prefabricated reinforced concrete semi-finished product of the prefabricated concrete template to replace a prefabricated part production factory and a mould, applies the semi-finished product to the wind power tower industry for the first time, and saves the investment of the factory and the mould.

The present invention aims to solve at least one of the technical problems in the related art to some extent. To this end, an embodiment of the present invention proposes a tower comprising: the cylinder sections are sequentially connected to a preset height from bottom to top;

every the shell ring all includes a plurality of prefabricated concrete templates, and is a plurality of prefabricated concrete templates closed connection forms regular polygon structure, every prefabricated concrete template is including the two sides prefabricated wallboard that the interval set up and connect two sides the connecting piece of prefabricated wallboard, two sides have accommodation space between the prefabricated wallboard, a plurality of prefabricated concrete templates's accommodation space intercommunication each other, all pour the concrete in the accommodation space, all concrete in the accommodation space solidifies and links as an organic wholely.

The tower barrel of the embodiment of the invention has flexible and changeable appearance, and can be flexibly adjusted no matter what the brand and model of the wind power main engine are changed. The tower barrel provided by the embodiment of the invention utilizes the prefabricated concrete template product to fully combine the prefabricated wallboard with the cast-in-place concrete, the formed pipe joint is an integral body, the continuity of each pipe joint on stress is ensured, and the structure of the tower barrel is safer and more reliable.

Optionally, the tower cylinder further comprises a plurality of prestressed steel strands arranged on the outer side of the cylinder section, and two ends of each prestressed steel strand are respectively connected to different cylinder sections.

Optionally, an epoxy resin mortar layer for connecting the two sections of the upper and lower adjacent sections of the cylinder sections is arranged between the two sections of the upper and lower adjacent sections of the cylinder sections;

the thickness range of the epoxy resin mortar layer is 7mm-13mm.

Optionally, the seam between two adjacent prefabricated wallboards has set gradually flexible sealing member and foaming glue from inside to outside, flexible sealing member with the foaming glue is all followed the seam is from top to bottom extended.

Optionally, the flexible seal is a rubber tube or a latex rod.

Optionally, the prefabricated wallboard is provided with an inner side plate surface, an outer side plate surface and a side end surface, wherein the inner side plate surface is parallel to the outer side plate surface, and the side end surface is obliquely arranged with the inner side plate surface;

The joints of the adjacent two prefabricated wallboards are positioned between the two side end surfaces; the two corresponding side end surfaces are parallel.

Optionally, at least one of the two corresponding side end surfaces is provided with a groove extending from top to bottom along the seam, and the flexible seal and/or the foaming glue are located in the groove.

Optionally, the prefabricated wallboard is provided with an inner side plate surface, an outer side plate surface and a side end surface, wherein the inner side plate surface and the outer side plate surface are parallel, and the side end surface is perpendicular to the inner side plate surface;

the joints of the adjacent two prefabricated wallboards are positioned between the two side end surfaces; and chamfering is arranged at the position with the minimum joint spacing on the two corresponding side end surfaces.

Optionally, each shell ring further comprises a connecting member, the connecting members are arranged between any two adjacent prefabricated concrete templates, the connecting members are simultaneously positioned in two adjacent accommodating spaces, and the connecting members are poured in the concrete.

Optionally, the connection member includes at least one reinforcing mesh, the reinforcing mesh is located on both sides in the middle of the prefabricated wallboard, or the reinforcing mesh is attached to the inner wall of the prefabricated wallboard.

Optionally, the reinforcing mesh is attached to the inner wall of the prefabricated wallboard, and the reinforcing mesh is connected with the two connected prefabricated wallboards in an anchoring manner.

Optionally, the cross section of the shell ring is any one of a regular hexagonal structure, a regular heptagon structure, a regular octagon structure, a regular nonagon structure, a regular decagon structure, a regular undecaper structure and a regular dodecagon structure.

Optionally, the connecting elements include a plurality of wire ropes and a plurality of reinforcing bar anchor ring, every prefabricated wallboard's inner wall all pre-buried have the reinforcing bar anchor ring, wire rope wears to locate in the reinforcing bar anchor ring that corresponds, wire rope is adjacent two the crisscross distribution in the prefabricated concrete template.

Optionally, the steel wire ropes are closed rope rings, vertical steel bars are inserted into the steel wire ropes in staggered distribution, and the vertical steel bars extend in the height direction of the prefabricated concrete template.

Optionally, the connecting member comprises a polygonal reinforcement cage and connecting reinforcements, the reinforcement cage extends from top to bottom along the side end of the precast concrete template, and the connecting reinforcements are simultaneously penetrated in the reinforcement cage and two adjacent accommodating spaces; and the reinforcement cage is filled with the concrete.

Optionally, the connecting component further comprises a superimposed sheet, two side ends of the superimposed sheet respectively abut against side ends of two adjacent prefabricated wallboards near the center of the shell ring, and two sides of the reinforcement cage are respectively close to side ends of two adjacent prefabricated concrete templates.

Optionally, one side of the reinforcement cage and one side of the connecting reinforcement are both close to the superimposed sheet.

Optionally, two sides of the reinforcement cage are respectively close to the side ends of two adjacent prefabricated concrete templates, and the sides of the reinforcement cage are not overlapped with the sides of the connecting reinforcement.

Optionally, the included angle between the precast concrete form and the horizontal plane is 87-90 degrees.

The embodiment of the invention also provides a wind power tower, which comprises the tower barrel and the wind power generation device arranged at the top of the tower barrel.

The embodiment of the invention also provides a construction method of the tower, which comprises the following steps:

s1, providing prefabricated concrete templates, wherein each prefabricated concrete template comprises two prefabricated wallboards arranged at intervals and a connecting piece for connecting the two prefabricated wallboards, and an accommodating space is formed between the two prefabricated wallboards; sequentially hoisting a plurality of precast concrete templates to an assembling table to splice into a regular polygon structure, and communicating the accommodating spaces of the precast concrete templates with each other;

S2, pouring concrete into all the accommodating spaces, and after the concrete is solidified, finishing the preparation of the cylinder sections;

and S3, hoisting the prepared cylinder sections in sequence, and connecting the prepared cylinder sections to a preset height.

Optionally, hoisting the precast concrete form includes the following steps: and pouring a concrete block with a lifting hook in the precast concrete template, and lifting the precast concrete template to the splicing table through the lifting hook.

Optionally, S1 further comprises providing a connecting member between two adjacent precast concrete templates.

Optionally, the step S1 further comprises the step of sequentially arranging a flexible sealing element and foaming glue at the joint of the adjacent two sides of the prefabricated wallboard from inside to outside.

Optionally, in the step S3, two sections of cylinder sections adjacent to each other up and down are connected through epoxy resin mortar; the included angle between the precast concrete templates and the horizontal plane is 87-90 degrees; and leveling the bottom of the cylinder section positioned on the upper side through the epoxy resin mortar.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

FIGS. 1a and 1b are front views of various embodiments of the tower of the present invention;

FIG. 2 is a top view of a shell ring of an embodiment of the present invention, without concreting;

fig. 3 is a top view of a shell ring of an embodiment of the present invention with concrete blocks disposed therein;

FIG. 4 is a top view of a shell ring of an embodiment of the present invention with concrete poured therein;

FIG. 5 is an enlarged partial schematic view of FIG. 3;

FIGS. 6-8 are schematic structural views of two precast concrete form attachment locations according to various embodiments of the present invention;

FIG. 9 is a schematic view of the structure of a connection location of two precast concrete form panels according to an embodiment of the present invention, in which a connection member is hidden;

FIG. 10 is a schematic illustration of upper and lower shell ring attachment locations according to an embodiment of the present invention;

FIGS. 11-19 are partial schematic views of two prefabricated wall panel connection locations according to various embodiments of the present invention;

fig. 20-27 are schematic structural views of connection positions of two adjacent precast concrete templates according to different embodiments of the present invention.

Reference numerals:

10-cylinder sections; 11-prefabricating a concrete template; 111-prefabricating wallboard; 1111-inner panel; 1112-outside panel; 1113-side end face; 1114-chamfering; 1101-extension;

112-accommodation space; 113-a connector; 12-a flexible seal; 13-foaming glue; 14-a connecting member; 141-a steel wire rope; 142-steel bar anchor ring; 143-vertical steel bars; 144-reinforcement cage; 145-superimposed sheet; 146-reinforcing steel bar meshes; 147-connecting steel bars; 15-concrete blocks; 16-concrete; 17-an expansion band;

20-epoxy resin mortar layer.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.

The present embodiment provides a tower that can be used as a tower for wind power generation.

Referring to fig. 1a, the tower of the present embodiment includes: the multi-section regular polygon structure cylinder section 10, the multi-section cylinder section 10 is connected to a predetermined height from bottom to top in sequence. Illustratively, the shell ring 10 can be a regular hexagonal structure, a regular heptagonal structure, a regular octagonal structure, a regular nonagonal structure, a regular decagonal structure, or the like.

Referring to fig. 2-5, each shell section 10 includes a plurality of precast concrete templates 11, the precast concrete templates 11 are closed and connected to form a regular polygon structure, each precast concrete template 11 includes two prefabricated wall panels 111 arranged at intervals and a connecting piece 113 connecting the two prefabricated wall panels 111, an accommodating space 112 is provided between the two prefabricated wall panels 111, the accommodating spaces 112 of the precast concrete templates 11 are mutually communicated, concrete 16 is poured in all the accommodating spaces 112, and the concrete 16 in all the accommodating spaces 112 is solidified and connected into a whole. After the concrete 16 is solidified, all the prefabricated concrete templates 11 are connected into a whole internally, so that the stability of the shell ring 10 is ensured.

The prefabricated concrete template 11 can be directly purchased from the building market, the size of the prefabricated concrete template 11 can be 3.1m multiplied by 12m, and different specifications are selected when different wind driven generators are matched. The prefabricated wall panels 111 are flat, and the local positions can be adjusted according to requirements, for example, chamfer angles are arranged at the end parts, inclined planes are arranged at the end parts, and the lengths of the two corresponding prefabricated wall panels 111 are equal. The lengths of the two corresponding prefabricated wall panels 111 may be the same or different, and may be set according to needs.

Because the main raw material (the prefabricated concrete template 11) of the tower can be purchased directly, when the shell section 10 is manufactured, a mould does not need to be prepared for independently opening the mould of the segment of the tower, so that the investment cost is reduced; further, the purchased precast concrete templates 11 can be directly transported to a construction site for field assembly, and the transportation cost is low.

In some embodiments, the tower further includes a plurality of prestressed steel strands disposed outside the shell ring 10, and two ends of each of the prestressed steel strands are respectively connected to different shell rings 10. The prestressed steel strands tighten the sections 10 to improve the overall structural stability of the tower. The prestressed steel strands can also be arranged on the inner side of the shell ring 10 according to requirements.

Referring to fig. 10, an epoxy resin mortar layer 20 connecting two sections of cylinder sections 10 adjacent to each other is provided between two sections of cylinder sections 10 adjacent to each other; the thickness of the epoxy resin mortar layer 20 ranges from 7mm to 13mm, and may be 8mm, 9mm, 10mm, 11mm, 12mm, or the like, for example.

The epoxy resin mortar layer 20 has a strong bonding effect, and can improve the connection reliability between the upper section and the lower section of cylinder sections 10. The thickness of the epoxy resin mortar layer 20 may be set according to the position of the shell ring 10 and the angle of the precast concrete form 11.

In some embodiments, precast concrete form 11 may have an included angle with the horizontal ranging from 87 ° to 90 °, for example: 88 °, 89 °, etc. That is, the prefabricated concrete forms 11 of at least a partial section of the tower can be arranged to be placed non-vertically, with reference to fig. 1a, the maximum transverse dimension of the bottom of the tower being greater than the maximum transverse dimension of the upper portion. The upper section of the tower may also be provided with precast concrete form 11 perpendicular to the horizontal plane, i.e. vertically. The cylinder section 10 can be divided into at least two types, the first is an equal diameter cylinder section with equal diameter, the second is a variable diameter cylinder section with unequal diameter, and the variable diameter cylinder section has a certain taper, wherein the equal diameter refers to the inscribed circle diameter or the circumscribed circle diameter of the cylinder section 10.

Referring to fig. 1a, the whole tower can be divided into two parts, the lower part adopts a variable diameter shell ring, and the upper part adopts an equal diameter shell ring; referring to fig. 1b, the whole tower can be divided into three parts, wherein the lower part adopts a constant diameter cylindrical shell with larger inner diameter, the middle part adopts a variable diameter cylindrical shell with a certain taper, and the upper part adopts a constant diameter cylindrical shell with smaller inner diameter.

Because part of the precast concrete templates 11 have a certain inclination angle, and the top and the bottom of the precast concrete templates 11 are both right angles, when the produced precast concrete templates 11 are obliquely placed, the top has a slight height difference, and in order to control the height difference within 3mm, the inclination angle during tower design can be smaller than 3 degrees, and the included angle between the precast concrete templates 11 and the horizontal plane ranges from 87 degrees to 90 degrees. When pouring is carried out in an assembly field, the top surface of the cylinder section 10 can be poured into a plane. The leveling of the bottom of the shell ring 10 is accomplished by epoxy resin of about 10mm thickness, i.e. the upper shell ring 10 can be naturally flattened when placed on the unhardened epoxy resin.

Referring to fig. 9, in some embodiments, the joints of the two adjacent prefabricated wall panels 111 are sequentially provided with a flexible sealing member 12 and a foaming adhesive 13 from inside to outside, and the flexible sealing member 12 and the foaming adhesive 13 extend from top to bottom along the joints. The flexible seal 12 and the foam 13 are used for sealing to avoid concrete flowing out of the gap during the later casting.

Illustratively, the flexible sealing member 12 is a rubber tube or a latex rod, and the flexible sealing member 12 has a certain deformability, so that sealing is better realized at the joint of the two adjacent prefabricated wall panels 111, and the sealing effect is improved.

Referring to fig. 2-4, in some embodiments, the shell ring includes a plurality of precast concrete templates 11, where the precast concrete templates 11 are closed and connected to form a regular polygon structure, which may be a regular octagon structure as shown in the drawings, or a regular hexagon structure, a regular heptagon structure, a regular octagon structure, a regular nonagon structure, a regular decagon structure, or the like.

Thus, the cross section of the shell ring is any one of a regular hexagonal structure, a regular heptagonal structure, a regular octagonal structure, a regular nonagonal structure, a regular decagonal structure, a regular undecapeal structure and a regular dodecagonal structure. The above-described structure is a general shape, and the determination of the overall shape of the shell ring is not affected by errors caused by the construction process or by the chamfer provided at the connection position of the two precast concrete templates 11, that is, if errors occur in shape due to the construction process or if the chamfer is provided at the connection position of the two precast concrete templates 11, the structure is also considered as a regular hexagon structure, a regular heptagon structure, a regular octagon structure, a regular nonagon structure, a regular decagon structure, a regular undecon-side structure, or a regular dodecagon structure according to the present embodiment.

Referring to fig. 5, each precast concrete form 11 includes two prefabricated wall panels 111 arranged at intervals and a connecting member 113 connecting the two prefabricated wall panels 111, an accommodating space 112 is provided between the two prefabricated wall panels 111, the accommodating spaces 112 of the precast concrete forms 11 are mutually communicated, concrete 16 is filled in all the accommodating spaces 112, and the concrete 16 in all the accommodating spaces 112 is solidified and connected into a whole. The prefabricated wall panel 111 itself may be a reinforced concrete structure.

Taking a regular octagonal structure as an example, the cylinder section assembling method comprises the following steps: the eight prefabricated concrete templates 11 are respectively hoisted to an assembly platform, the angle and the position of each prefabricated concrete template 11 are adjusted, a regular octagonal structure is assembled, the accommodating spaces 112 of the adjacent prefabricated concrete templates 11 are mutually communicated, the connecting positions of the adjacent prefabricated concrete templates 11 are connected and fixed, then concrete is poured into the accommodating spaces 112, and the concrete is solidified, so that the eight prefabricated concrete templates 11 are firmly fixed.

The particular shape and size of the shell ring can be selected by those skilled in the art depending on the size of the tower to be constructed.

Referring to fig. 9, the joints of the two adjacent prefabricated wall panels 111 are sequentially provided with a flexible sealing member 12 and a foaming adhesive 13 from inside to outside, and the flexible sealing member 12 and the foaming adhesive 13 extend from top to bottom along the joints. Inside here is the space where the concrete 16 needs to be poured, i.e. the accommodation space 112.

Referring to fig. 9, the prefabricated wall panel 111 has an inner panel 1111, an outer panel 1112 and a side end surface 1113, the inner panel 1111 and the outer panel 1112 are parallel, and the side end surface 1113 is inclined to the inner panel 1111; the seam of adjacent two-sided prefabricated wall panels 111 is located between two side end surfaces 1113; the two corresponding side faces 1113 are parallel. The structure ensures that the arranged flexible sealing element 12 and the foaming adhesive 13 have good sealing performance, and cannot flow out from the gaps of the two-sided prefabricated wall boards 111 when concrete is poured.

Illustratively, at least one of the two corresponding side end surfaces 1113 is provided with a groove extending from top to bottom along the seam, and the flexible seal 12 and/or the foam 13 are located within the groove. The sealing performance of the gap is further improved by arranging the grooves.

Referring to fig. 11 and 12, the prefabricated wall panel 111 has an inner panel 1111, an outer panel 1112, and a side end 1113, the inner panel 1111 and the outer panel 1112 are parallel, and the side end 1113 is perpendicular to the inner panel 1111; the seam of adjacent two-sided prefabricated wall panels 111 is located between two side end surfaces 1113; two corresponding side end surfaces 1113 are provided with chamfers 1114 at locations where joint spacing is minimal.

As shown in fig. 11, where the chamfer 1114 may be positioned near the outside or near the inside as shown in fig. 12, the chamfer 1114 is positioned inward (i.e., on the side of the receiving space) so that the concrete 16 more easily fills the vertical gap. Since one precast concrete form 11 has two precast wall panels 111, two adjacent precast wall panels 111 on two sides near the inside of the shell section (inside of the shell section) are connected to each other at the position where the two precast concrete forms 11 are connected, and thus, the adjacent precast wall panels 111 on two sides near the inside of the shell section are connected to each other, and the inside and outside of the junction position of the two adjacent precast concrete forms 11 are provided with corresponding sealing structures, as shown in fig. 9, the sealing structures are the flexible sealing member 12 and the foaming glue 13. The sealing structures provided inside and outside the joint position may be the same or different.

As shown in fig. 12, when concrete is poured, a part of the concrete flows between the adjacent two chamfers 1114, and after solidification, the firmness of the shell ring can be improved.

As shown in fig. 11, the poured concrete presses the flexible sealing member 12, and the more the flexible sealing member 12 is pressed, the smaller the gap where the flexible sealing member 12 is located, thereby improving the sealing property.

In one embodiment, referring to fig. 13, prefabricated wall panel 111 has an inner panel 1111, an outer panel 1112, and a side end 1113, wherein inner panel 1111 and outer panel 1112 are parallel, and side end 1113 is inclined with respect to inner panel 1111; the seam of adjacent two-sided prefabricated wall panels 111 is located between two side end surfaces 1113; the included angle of the two corresponding side end surfaces 1113 ranges from 5 degrees to 10 degrees, and the interval between the joints is gradually reduced from inside to outside.

Wherein the side end 1113 may also be provided with a recess for receiving the flexible seal 12. The shape of the groove can be square groove, semicircular groove, right angle groove, obtuse angle groove, acute angle groove and the like.

In one embodiment, referring to fig. 14 and 15, the prefabricated wall panel 111 has an inner panel 1111, an outer panel 1112, and a side end 1113, the inner panel 1111 and the outer panel 1112 are parallel, the side end 1113 has a stepped structure, and an edge of the side end 1113 is folded in a line shape as can be seen in fig. 14 and 15.

The seam of the adjacent two-sided prefabricated wall panel 111 is located between the two side end surfaces 1113, and the seam is divided into at least two sections from inside to outside, and the maximum value of the seam spacing near the inner section is larger than the maximum value of the seam spacing near the outer section. So that the poured concrete portion flows into the joint close to the inside and compresses the flexible seal 12, thereby improving the tightness.

The seam spacing near the inner section may be gradually increased from inside to outside as shown in fig. 14, or may be maintained from inside to outside as shown in fig. 15.

In one embodiment, referring to fig. 17 and 18, prefabricated wall panel 111 has an inside panel 1111, an outside panel 1112, and a side end 1113, with inside panel 1111 and outside panel 1112 being parallel; the seams of adjacent two-sided prefabricated wall panels 111 are located between the two side end faces 1113, and the pitch of the seams gradually decreases from inside to outside. So that the seams of adjacent two-sided prefabricated wall panels 111 form a bell mouth-like structure.

As shown in fig. 18, at least one of the two corresponding side end surfaces 1113 is provided with a groove extending from top to bottom along the seam, and the flexible seal 12 and/or the foam 13 are located in the groove.

In one embodiment, as shown in fig. 18 and 19, the side ends of each prefabricated wall panel 111 are formed with extensions 1101, and two corresponding extensions 1101 at the joint of two adjacent prefabricated wall panels 111 are staggered so that the joint deviates from the radial direction of the shell ring. This arrangement increases the flow path of the concrete in the gap, thereby further improving the sealing.

Wherein, the seam is provided with an expansion belt 17, and the expansion belt 17 extends from top to bottom along the seam. Wherein, the expansion belt 17 can be made of rubber.

The prefabricated wall panel 111 has an inner panel 1111, an outer panel 1112, and a side end surface 1113, the inner panel 1111 and the outer panel 1112 being parallel; the seam of the adjacent two-sided prefabricated wall panel 111 is located between the two side end faces 1113 and the expansion band 17 is pressed by the two side end faces 1113.

In some embodiments, referring to fig. 6-8, each shell section 10 further includes a connecting member 14, wherein the connecting member 14 is disposed between any two adjacent precast concrete forms 11, the connecting members 14 are simultaneously positioned in two adjacent receiving spaces 112, the connecting members 14 are poured into the concrete 16, and the poured concrete 16 pours the connecting members 14 therein. The connecting member 14 can improve the connection firmness of the two precast concrete templates 11, thereby improving the structural stability of the shell ring 10.

The connecting member 14 has a symmetrical structure, so that the connecting member is easier to manufacture, has stronger universality when being put into use, and improves the convenience of installation, thereby saving the cost, being beneficial to accelerating the construction speed and shortening the construction period.

Illustratively, the connecting member 14 includes at least one reinforcing mesh 146, as shown in fig. 7, the reinforcing mesh 146 being positioned in the middle of the two-sided prefabricated wall panel 111, as shown in fig. 6, and the reinforcing mesh 146 may be attached to the inner wall of the prefabricated wall panel 111. The number of the reinforcing mesh sheets 146 may be plural and disposed at different positions.

In some embodiments, the reinforcing mesh is attached to the inner wall of the prefabricated wall panel 111 and the reinforcing mesh is in anchored connection with both prefabricated wall panels 111 that are connected. The reliability of the connection is further improved by the anchoring connection.

Illustratively, the cross-section of the reinforcing mesh 146 is V-shaped. The cross section of the reinforcing mesh 146 may also be provided in a wave shape to increase the contact area with the concrete 16, thereby improving the reliability of the connection.

In some embodiments, referring to fig. 8, the connecting member 14 includes a plurality of steel cables 141 and a plurality of steel anchor rings 142, the steel anchor rings 142 are pre-embedded in the inner wall of each prefabricated wall panel 111, the steel cables 141 are threaded in the corresponding steel anchor rings 142, and the steel cables 141 are distributed in the adjacent two prefabricated concrete templates 11 in a staggered manner.

The wire ropes 141 may be provided in a closed loop structure, and the two wire ropes 141 are staggered together, so that the connection reliability after the concrete 16 is poured can be increased.

As shown in fig. 8, the steel wire ropes 141 are closed rope rings, and vertical steel bars 143 are inserted into the steel wire ropes 141 distributed in a staggered manner, and the vertical steel bars 143 extend along the height direction of the precast concrete form 11. The vertical steel bars 143 can ensure that the steel wire ropes 141 are always staggered, so that the flowing concrete is prevented from disturbing the arranged steel wire ropes 141 when the concrete is poured.

In some embodiments, referring to fig. 20-21, the connecting member 14 includes a polygonal reinforcement cage 144 and connecting reinforcement 147, the reinforcement cage 144 extending from top to bottom along the side ends of the precast concrete form 11, the connecting reinforcement 147 being simultaneously disposed in the reinforcement cage 144 and the adjacent two receiving spaces 112; reinforcement cage 144 is filled with concrete 16. The reinforcement cage 144 can play a role in connection, so that the adjacent two prefabricated concrete templates 11 are more firmly connected, the connection reinforcement 147 plays a role in further connection, and the connection reinforcement 147 can be fixedly connected with the reinforcement cage 144.

When the concrete 16 is poured, templates can be arranged on two sides of the reinforcement cage 144, and the templates are removed after the concrete 16 to be poured is solidified. The removed form may be reused.

As shown in fig. 20-21, the cross section of the connecting reinforcement 147 is three straight lines, and the reinforcement cage 144 has a hexagonal structure.

In some embodiments, as shown in fig. 11, the connecting member 14 further includes a laminated plate 145, two side ends of the laminated plate 145 respectively abut against side ends of two adjacent prefabricated wall panels 111 near the center of the shell ring, and two sides of the reinforcement cage 144 are respectively disposed near the side ends of two adjacent prefabricated concrete templates 11. Superimposed sheet 145 may be made of the same material as prefabricated wall panel 111, both of which may be reinforced concrete structures, and after placement of superimposed sheet 145, no form may be required on that side for placement of concrete 16. After concrete 16 sets, composite sheet 145 and concrete 16 are joined together without removal.

In some embodiments, as shown in FIG. 20, one of the edges of reinforcement cage 144 and one of the edges of connecting reinforcement 147 are each adjacent to superimposed sheet 145. In fig. 20, the lower side of reinforcement cage 144 and the middle side of connecting reinforcement 147 are adjacent to superimposed sheet 145.

In some embodiments, as shown in fig. 21, two sides of the reinforcement cage 144 are respectively disposed near the side ends of two adjacent precast concrete templates 11, and none of the sides of the reinforcement cage 144 coincides with the side of the connecting reinforcement 147. And neither side of reinforcement cage 144 is provided with superimposed sheet 145, and both sides are provided with forms when concrete 16 is poured.

In some embodiments, referring to fig. 2-4, the shell ring includes a plurality of precast concrete templates 11, the precast concrete templates 11 are closed and connected to form a polygonal structure, each precast concrete template 11 includes two prefabricated wall panels 111 arranged at intervals and a connecting piece 113 connecting the two prefabricated wall panels 111, the two prefabricated wall panels 111 are parallel to each other, an accommodating space 112 is provided between the two prefabricated wall panels 111, the accommodating spaces 112 of the precast concrete templates 11 are communicated with each other, all the accommodating spaces 112 are filled with concrete 16, and the concrete 16 in all the accommodating spaces 112 are solidified and connected into a whole; a connecting member 14 is disposed between any two adjacent precast concrete templates 11, the connecting member 14 is simultaneously located in two adjacent receiving spaces 112, and the connecting member 14 is poured into the concrete 16.

Taking a regular octagonal structure as an example, the cylinder section assembling method comprises the following steps: the eight prefabricated concrete templates 11 are respectively hoisted to an assembly platform, the angle and the position of each prefabricated concrete template 11 are adjusted, a regular octagonal structure is assembled, the accommodating spaces 112 of the adjacent prefabricated concrete templates 11 are mutually communicated, the connecting positions of the adjacent prefabricated concrete templates 11 are connected and fixed, then concrete is poured into the accommodating spaces 112, and the concrete is solidified, so that the eight prefabricated concrete templates 11 are firmly fixed.

The particular shape and size of the shell ring can be selected by those skilled in the art depending on the size of the tower to be constructed.

In some embodiments, referring to fig. 22, connecting member 14 includes a polygonal structure of reinforcement cage 144 with reinforcement members 1114 within prefabricated wall panel 111, at least a portion of the structure of reinforcement members 1114 extending into reinforcement cage 144, and concrete 16 filling reinforcement cage 144.

When pouring concrete 16, templates can be respectively arranged at two sides of the reinforcement cage 144 to limit the preset shape of the concrete bound by the reinforcement cage 144, the reinforcement 1114 in the prefabricated wall panel 111 is buried when the prefabricated concrete templates 11 are produced, and a part of the reinforcement 1114 is leaked to the outside so as to form staggered connection with the reinforcement cage 144. By extending rebar pieces 1114 within prefabricated wall panel 111 into rebar cage 144 and casting simultaneously with rebar cage 144, the reliability of connection of adjacent prefabricated concrete forms 11 is improved.

The reinforcement 1114 may be tied to the reinforcement cage 144 first and then anchored, and then poured with concrete, or may be formed with only staggered formations.

In some embodiments, two of the sides of reinforcement cage 144 overlap reinforcement members 1114. As shown in fig. 22, the reinforcement cage 144 has a hexagonal structure in which upper and lower sides are parallel to each other, and upper sides of the left and right sides are overlapped with two reinforcement members 1114, respectively.

The reinforcement cage 144 may itself be of a symmetrical structure, and the shape of the concrete bound by the reinforcement cage 144 may be chamfered, for example, as shown in fig. 11, both the inside and the outside of the connection position of the two precast concrete forms 11 are chamfered.

Illustratively, as shown in fig. 22, the connection position of two precast concrete templates 11 has an inner chamfer and an outer chamfer, and both sides of the reinforcement cage 144 constitute the inner chamfer and the outer chamfer of the connection position of two precast concrete templates 11.

In some embodiments, referring to fig. 23, the connection location of two precast concrete templates 11 has an inside chamfer, and one edge of reinforcement cage 144 forms the inside chamfer of the connection location of two precast concrete templates 11; the outside of the connection position of the two prefabricated concrete forms 11 is not provided with a chamfer angle, and the reinforcement members 1114 in the adjacent prefabricated wall panels 111 are staggered with each other.

In some embodiments, referring to fig. 24, connecting member 14 includes a reinforcement cage 144 and connecting reinforcement 147 in a polygonal configuration; the connection position of the two precast concrete templates 11 has an inner chamfer, and the outer side of the connection position of the two precast concrete templates 11 may not be provided with a chamfer.

Wherein the connecting bars 147 are disposed near the prefabricated wall panel 111, and the connecting bars 147 are simultaneously positioned in the reinforcement cage 144 and the adjacent two accommodation spaces 112, and the reinforcement cage 144 is filled with the concrete 16. Reinforcement cage 144 may have a pentagonal structure and a symmetrical structure; the connection reliability of the two precast concrete templates 11 is improved by providing the reinforcement cage 144 and the connection reinforcement 147.

In some embodiments, referring to fig. 25, connecting member 14 includes a reinforcement cage 144 and connecting reinforcement 147 in a polygonal configuration; the prefabricated wall panels 111 on the two outer sides of the two adjacent prefabricated concrete templates 11 are mutually abutted; the connecting bars 147 are disposed adjacent to the two inner prefabricated wall panels 111, and the connecting bars 147 are simultaneously positioned in the reinforcement cage 144 and the adjacent two receiving spaces 112, and the reinforcement cage 144 is filled with the concrete 16.

In construction, since the prefabricated wall panels 111 on both outer sides of the two prefabricated concrete templates 11 are abutted against each other, the templates do not need to be provided at this position, so that the cost of constructing the templates can be saved and the construction speed can be increased.

Illustratively, reinforcement cage 144 is pentagonal in structure and symmetrical in structure, and connecting reinforcement 147 may be bent into three sections from one reinforcement.

In some embodiments, referring to fig. 26, connecting member 14 includes a reinforcement cage 144 and connecting reinforcement 147 in a polygonal configuration; no chamfer angle is arranged on the inner side and the outer side of the connecting position of the two precast concrete templates 11; the connecting bars 147 are disposed adjacent to the prefabricated wall panel 111, and the connecting bars 147 are simultaneously positioned in the reinforcement cage 144 and in the adjacent two accommodation spaces 112, and the reinforcement cage 144 is filled with the concrete 16.

Wherein, the reinforcement cage 144 has a symmetrical hexagonal structure and a symmetrical structure, and the connecting reinforcement 147 can be folded into two sections by one reinforcement. When concrete is poured, templates are arranged on two sides of the reinforcement cage 144, and the templates can be removed after pouring is completed.

In some embodiments, referring to fig. 27, connecting member 14 includes a reinforcement cage 144 and connecting reinforcement 147 in a polygonal configuration; the prefabricated wall panels 111 on the two inner sides of the two adjacent prefabricated concrete templates 11 are mutually abutted; the connecting bars 147 are disposed adjacent to the prefabricated wall panels 111, and the connecting bars 147 are simultaneously positioned in the reinforcement cage 144 and the adjacent two receiving spaces 112, and the reinforcement cage 144 is filled with the concrete 16.

Wherein, the reinforcement cage 144 has a symmetrical quadrilateral structure, and the connecting reinforcement 147 can be folded into two sections by one reinforcement. When pouring concrete, the templates are arranged on the outer sides of the reinforcement cages 144, and the templates can be removed after pouring is completed. The inside of reinforcement cage 144 is bounded in shape by two prefabricated wall panels 111 to which the concrete is poured.

The present embodiment further provides a construction method of a tower, including the steps of:

s1, providing prefabricated concrete templates 11, wherein each prefabricated concrete template 11 comprises two prefabricated wall boards 111 arranged at intervals and connecting pieces 113 for connecting the two prefabricated wall boards 111, and an accommodating space 112 is formed between the two prefabricated wall boards 111; sequentially hoisting a plurality of precast concrete templates 11 to an assembling table to splice into a regular polygon structure, and communicating the accommodating spaces 112 of the precast concrete templates 11 with each other;

S2, pouring concrete 16 into all the accommodating spaces 112, and after the concrete 16 is solidified, finishing the preparation of the shell ring 10;

and S3, sequentially hoisting the prepared cylinder sections 10 and connecting the prepared cylinder sections to a preset height.

The method utilizes prefabricated concrete template products in the building industry, and the products are used for the construction of civil buildings (such as houses) in the building industry. In civil buildings, the connecting nodes of the precast concrete templates are mostly L-shaped and T-shaped, and floor slabs are separated from each other; the prefabricated concrete form 11 of the method is directly transported to a construction site for assembly, so that the structural stability is high, the manufacturing cost of a mould is saved, and the transportation cost is also saved.

In some embodiments, referring to fig. 3, lifting precast concrete form 11 comprises the steps of: and pouring a concrete block 15 with a lifting hook in the precast concrete form 11, and lifting the precast concrete form 11 to the splicing table through the lifting hook. Specifically, the concrete block 15 with the lifting hook can be poured firstly, and then the concrete block 15 with the lifting hook and the prefabricated concrete template are poured into a whole when the prefabricated concrete template is manufactured, so that the pouring firmness is ensured. The concrete block 15 and the concrete 16 poured in the accommodating space 112 can be fused together to allow the hooks to leak out so as to facilitate the lifting operation.

If the concrete block 15 is not arranged, the prefabricated concrete template 11 can also be temporarily hoisted by truss steel bars, and when the concrete 16 is poured into the accommodating space 112, a sleeve can be arranged in the accommodating space 112, and after the poured concrete 16 is solidified, the lifting hook is screwed on the embedded sleeve.

In some embodiments, S1 further comprises disposing a connecting member 14 between two adjacent precast concrete forms 11. The connection members 14 can improve connection reliability between the adjacent precast concrete templates 11. The embodiments of which can be implemented with reference to the description above.

In some embodiments, S1 further comprises disposing a flexible seal 12 and a foam adhesive 13 sequentially from inside to outside at the seam of adjacent two-sided prefabricated wall panels 111. Wherein, setting up connecting elements 14 and setting up flexible seal 12 and foaming glue 13 can be under construction in step to accelerate the efficiency of construction, shorten construction cycle.

The flexible seal 12 and the foam 13 are used for sealing to avoid concrete flowing out of the gap during the later casting. And S2, after the flexible sealing element 12 and the foaming adhesive 13 are stabilized, implementing.

In some embodiments, in S3, two sections of cylinder sections 10 adjacent to each other up and down are connected by epoxy resin mortar; the included angle between the precast concrete form 11 and the horizontal plane is 87-90 degrees; the bottom of the cylinder section 10 located on the upper side is leveled by epoxy mortar.

The embodiment also provides a wind power tower, which comprises the tower barrel of any embodiment and a wind power generation device arranged at the top of the tower barrel. The wind power tower has low construction cost and high stability.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

For purposes of this disclosure, the terms "one embodiment," "some embodiments," "example," "a particular example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.

Claims (25)

1. A tower, comprising: a cylinder section (10) with a multi-section regular polygon structure, wherein the multi-section cylinder section (10) is sequentially connected to a preset height from bottom to top;

Every shell ring (10) all includes a plurality of prefabricated concrete templates (11), and is a plurality of prefabricated concrete templates (11) closed connection forms regular polygon structure, every prefabricated concrete templates (11) are including two sides prefabricated wallboard (111) and the connection two sides that the interval set up prefabricated wallboard (111) connecting piece (113), two sides have accommodation space (112) between prefabricated wallboard (111), a plurality of accommodation space (112) intercommunication of prefabricated concrete templates (11), all pour concrete (16) in accommodation space (112), all concrete (16) in accommodation space (112) solidify and link as an organic whole.

2. The tower according to claim 1, further comprising a plurality of prestressed steel strands arranged outside the shell ring (10), wherein two ends of the prestressed steel strands are respectively connected to different shell rings (10).

3. The tower according to claim 1, characterized in that an epoxy resin mortar layer (20) connecting two sections of the cylinder sections (10) adjacent to each other is provided between two sections of the cylinder sections (10) adjacent to each other;

the thickness of the epoxy resin mortar layer (20) ranges from 7mm to 13mm.

4. The tower according to claim 1, wherein the joints of the prefabricated wall panels (111) on two adjacent sides are sequentially provided with a flexible sealing member (12) and foaming glue (13) from inside to outside, and the flexible sealing member (12) and the foaming glue (13) extend from top to bottom along the joints.

5. The tower according to claim 4, wherein said flexible seal (12) is a rubber tube or a latex rod.

6. The tower according to claim 4, wherein said prefabricated wall panels (111) have an inner panel (1111), an outer panel (1112) and side end surfaces (1113), said inner panel (1111) and said outer panel (1112) being parallel, said side end surfaces (1113) being inclined to said inner panel (1111);

the seam of two adjacent prefabricated wall panels (111) is positioned between the two side end surfaces (1113); the two corresponding side end surfaces (1113) are parallel.

7. The tower according to claim 6, wherein at least one of the two corresponding side faces (1113) is provided with a groove extending from top to bottom along the seam, the flexible seal (12) and/or the foam (13) being located in the groove.

8. The tower according to claim 4, wherein said prefabricated wall panels (111) have an inner panel (1111), an outer panel (1112) and side end surfaces (1113), said inner panel (1111) and said outer panel (1112) being parallel, said side end surfaces (1113) being perpendicular to said inner panel (1111);

The seam of two adjacent prefabricated wall panels (111) is positioned between the two side end surfaces (1113); two corresponding side end surfaces (1113) are provided with chamfers (1114) at positions with minimum joint spacing.

9. The tower according to claim 1, wherein each shell section (10) further comprises a connecting member (14), wherein the connecting member (14) is arranged between any two adjacent precast concrete templates (11), the connecting members (14) are simultaneously positioned in two adjacent accommodating spaces (112), and the connecting members (14) are poured in the concrete (16).

10. The tower according to claim 9, wherein said connection member (14) comprises at least one reinforcing mesh (146), said reinforcing mesh (146) being located in the middle of said prefabricated wall panels (111) on both sides or said reinforcing mesh (146) being attached to the inner wall of said prefabricated wall panels (111).

11. The tower according to claim 10, wherein the reinforcement mesh (146) is attached to the inner wall of the prefabricated wall panels (111), and the reinforcement mesh (146) is anchored to both of the prefabricated wall panels (111) that are connected.

12. The tower according to claim 10, wherein the cross-section of the shell ring (10) has any one of a regular hexagonal structure, a regular heptagonal structure, a regular octagonal structure, a regular nonagonal structure, a regular decagonal structure, a regular undecapeal structure, and a regular dodecagonal structure.

13. The tower according to claim 9, wherein the connecting member (14) comprises a plurality of steel wire ropes (141) and a plurality of steel bar anchor rings (142), the steel bar anchor rings (142) are pre-buried in the inner wall of each prefabricated wall plate (111), the steel wire ropes (141) are arranged in the corresponding steel bar anchor rings (142) in a penetrating manner, and the steel wire ropes (141) are distributed in two adjacent prefabricated concrete templates (11) in a staggered manner.

14. The tower according to claim 13, wherein the steel wire ropes (141) are closed rope rings, vertical steel bars (143) are inserted in the steel wire ropes (141) which are distributed in a staggered manner, and the vertical steel bars (143) extend in the height direction of the precast concrete form (11).

15. The tower according to claim 9, wherein said connection members (14) comprise polygonal reinforcement cages (144) and connection bars (147), said reinforcement cages (144) extending from top to bottom along lateral ends of said precast concrete templates (11), said connection bars (147) being simultaneously threaded into said reinforcement cages (144) and adjacent two of said accommodation spaces (112); the reinforcement cage (144) is filled with the concrete (16).

16. The tower according to claim 15, wherein the connecting member (14) further comprises a laminated plate (145), two side ends of the laminated plate (145) respectively abut against side ends of two adjacent prefabricated wall panels (111) near the center of the shell section, and two sides of the reinforcement cage (144) are respectively arranged near side ends of two adjacent prefabricated concrete templates (11).

17. The tower according to claim 16, wherein one of the edges of the reinforcement cage (144) and one of the edges of the connecting bars (147) are both adjacent to the superimposed sheet (145).

18. The tower according to claim 17, wherein two sides of said reinforcement cage (144) are respectively disposed adjacent to side ends of two adjacent prefabricated concrete forms (11), and the sides of said reinforcement cage (144) do not overlap with the sides of said connecting reinforcement (147).

19. A tower according to claim 1, wherein the angle between the precast concrete form (11) and the horizontal plane is in the range of 87 ° -90 °.

20. A wind power tower comprising a tower according to any of claims 1-19 and a wind power plant arranged on top of the tower.

21. The construction method of the tower is characterized by comprising the following steps of:

s1, providing prefabricated concrete templates (11), wherein each prefabricated concrete template (11) comprises two prefabricated wallboards (111) arranged at intervals and connecting pieces (113) for connecting the prefabricated wallboards (111) on two sides, and an accommodating space (112) is formed between the prefabricated wallboards (111) on two sides; sequentially hoisting a plurality of precast concrete templates (11) to an assembling table to form a regular polygon structure, and communicating the accommodating spaces (112) of the precast concrete templates (11) with each other;

S2, pouring concrete (16) into all the accommodating spaces (112), and after the concrete (16) is solidified, finishing the preparation of the shell ring (10);

s3, hoisting the prepared cylinder sections (10) in sequence, and connecting the prepared cylinder sections to a preset height.

22. Construction method according to claim 21, characterized in that hoisting the precast concrete form (11) comprises the following steps: and pouring a concrete block (15) with a lifting hook in the precast concrete template (11), and lifting the precast concrete template (11) to the assembling table through the lifting hook.

23. The construction method according to claim 21, wherein S1 further comprises providing a connecting member (14) between two adjacent precast concrete forms (11).

24. The construction method according to claim 21, wherein S1 further comprises a flexible sealing member (12) and a foaming adhesive (13) sequentially arranged at the joint of the prefabricated wall panels (111) on the two adjacent sides from inside to outside.

25. The construction method according to claim 21, wherein in S3, two sections of cylinder sections (10) adjacent to each other up and down are connected by epoxy resin mortar; the included angle between the precast concrete templates (11) and the horizontal plane is 87-90 degrees; the bottom of the cylinder section (10) positioned on the upper side is leveled by the epoxy resin mortar.

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