CN212389473U

CN212389473U - Prefabricated assembled combination tower section of thick bamboo connected node of segmentation

Info

Publication number: CN212389473U
Application number: CN202020778692.3U
Authority: CN
Inventors: 张后禅; 钦明畅; 赵雅丽; 周瑞权; 陆峰
Original assignee: Shanghai Electric Research Concrete Mulei Construction Technology Co ltd
Current assignee: Shanghai Electric Research Concrete Mulei Construction Technology Co ltd
Priority date: 2020-05-12
Filing date: 2020-05-12
Publication date: 2021-01-22
Anticipated expiration: 2030-05-12

Abstract

The utility model relates to a connected node especially relates to a prefabricated assembled combination tower section of thick bamboo connected node of segmentation, bury piece and casing including last ring flange, lower ring flange, prestressing steel, prestressing force, the cage form of prestressing steel comprises many reinforcing bars forms, lower ring flange sets up in the reinforcing bar lower extreme, it sets up in the reinforcing bar upper end to go up the ring flange, lower ring flange all is fixed with the casing with last ring flange, prestressing force buries the piece and runs through the casing, the utility model discloses perfect or avoided the rigidity sudden change of concrete tower section of thick bamboo section and steel tower section of thick bamboo junction and connected node's local bucking problem as far as possible, simultaneously, but the piece formula ization has reduced the cost of transportation, simplified the construction degree of difficulty, promote efficiency and improve.

Description

Prefabricated assembled combination tower section of thick bamboo connected node of segmentation

Technical Field

The utility model relates to a connected node especially relates to a prefabricated assembled combination tower section of thick bamboo connected node of segmentation.

Background

In recent years, wind power generation has been developed in a leap manner because the wind power industry is supported and developed by the great efforts of the country, and the wind power generation tower is an important component of wind power generation equipment, which is related to the technical development and improvement of wind power generation.

Generally, as the ground height increases, the wind speed becomes stronger, and therefore, the higher the wind power generator is installed, the higher the wind energy utilization rate becomes. However, with the large-scale and advanced development of wind turbine generators, the disadvantages of difficult transportation, low economy and the like of the traditional steel tower are increasingly revealed. The combined wind power tower frame formed by the prestressed assembly type concrete tower section and the steel tower section can effectively solve the problem, has the advantages of low manufacturing cost, high durable service life and the like, can become one of the directions of the tower frame of the future large-scale generating set, and has wide prospect.

However, because the materials and mechanical properties used by the concrete tower section and the steel tower section are obviously different, in the traditional connection mode, the part of the steel tower section at the connection node is easy to bend, and the concrete tower section has the problems that the crack resistance and the fatigue resistance can not be guaranteed due to uneven stress, and the like, so that the mechanical properties and the stability of the whole wind power tower are influenced.

In the prior art, when the prestressed assembly type concrete tower section and the steel tower section are connected through nodes during construction, due to the difference of materials, the difference of mechanical properties is obvious, the rigidity is easy to change suddenly, and then the parts of the joints of the steel tower section are easy to buckle, the integral stability of the tower is influenced, secondary construction is easy to cause, the safety is reduced, and the engineering quality is difficult to guarantee.

SUMMERY OF THE UTILITY MODEL

Objects of the invention

For solving the technical problem who exists among the background art, the utility model provides a prefabricated assembled combination tower section of thick bamboo connected node of segmentation perfects or has avoided the rigidity sudden change of concrete tower section of thick bamboo and steel tower section of thick bamboo junction and connected node's local buckling problem as far as possible, simultaneously, but the segmentation reduction of segmentation cost of transportation, simplified the construction degree of difficulty, promotion efficiency improves.

(II) technical scheme

In order to solve the problem, the utility model provides a prefabricated assembled combination tower section of thick bamboo connected node of segmentation, bury piece and casing including last ring flange, lower ring flange, prestressing steel, prestressing force, the cage form of constituteing by many reinforcing bars forms to the prestressing steel, lower ring flange sets up in the reinforcing bar lower extreme, the last ring flange sets up in the reinforcing bar upper end, lower ring flange all is fixed with the casing with last ring flange, prestressing force buries the piece and runs through the casing.

Preferably, the prestress embedded part is a hollow pipe body, and the pipe orifice is provided with a bearing part.

Preferably, the force bearing part is a block-shaped steel plate with an opening and is arranged on the outer side of the shell.

Preferably, the shell is provided with a connecting sheet.

Preferably, the bottom of the shell is curved.

Preferably, the upper flange plate is provided with bolt holes and is fixed on the shell through fastening bolts.

Preferably, a notch is formed in the top of the shell, and a rod body is embedded into the notch.

Preferably, the positions of the bolt holes and the reinforcing steel bars are distributed in a staggered mode.

Preferably, the prestressing force burial part is provided in plurality, and a plurality of prestressing force burial parts are equidistantly distributed on the shell.

The above technical scheme of the utility model following profitable technological effect has at least:

(1) the utility model discloses a cost of transportation is practiced thrift to the burst formula under the prerequisite of guaranteed quality, avoids the complicated operation of whole massive construction, has shortened construction and maintenance cycle by a wide margin.

(2) The utility model discloses according to the atress characteristic of a concrete tower section of thick bamboo and a steel tower section of thick bamboo, adopt vertical joint bolted connection mode during the installation, the atress intensity requirement when guaranteeing hoist and mount and operating condition has strengthened the durability and the steadiness of a tower section of thick bamboo.

(3) The utility model discloses can suitably reduce tower wall thickness under the unchangeable condition of tower height to practice thrift the cost.

(4) The utility model discloses be favorable to the stable safe operation of concrete-steel combination tower section of thick bamboo structure to can increase a tower section of thick bamboo overall height, effectively utilize the wind energy resource in low wind speed district, impel wind generating set to enlarge, the high-degree development.

Drawings

Fig. 1 is a schematic three-dimensional structure of the present invention;

FIG. 2 is a schematic view of a viewing angle of the present invention;

fig. 3 is a schematic view of the overall structure of an embodiment of the present invention;

description of the labeling:

1. a housing; 2. pre-stressing the steel bars; 3. a prestressed embedment; 4. a steel plate; 5. a curved surface; 6. connecting sheets; 7. mounting grooves; 8. an upper flange plate; 9. a lower flange plate; 10. a notch; 11. a rod body.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

In view of this, the utility model provides a prefabricated assembled combination tower section of thick bamboo connected node of segmentation and mounting method thereof. A connecting node that is used for steel-concrete combination tower section of thick bamboo changeover portion to build.

Referring to fig. 1-3, the utility model provides a prefabricated assembled combination tower section of thick bamboo connected node of piece, bury piece 3 and casing 1 including last ring flange 8, lower ring flange 9, prestressing steel 2, prestressing force, prestressing steel 2 comprises many reinforcing bars cage form and forms, lower ring flange 9 sets up in the reinforcing bar lower extreme, go up ring flange 8 and set up in the reinforcing bar upper end, lower ring flange 9 all is fixed with casing 1 with last ring flange 8, prestressing force buries piece 3 and runs through casing 1, prestressing force buries piece 3 and adopt hollow body, and the mouth of pipe sets up the load piece, and the load piece adopts cubic steel sheet 4 of trompil, and sets up in the casing 1 outside.

The shell 1 is provided with the connecting sheet 6, so that the installation and the combination of the joint are convenient, and the split type combined installation is facilitated.

The bottom of the shell 1 is a curved surface 5, which is beneficial to the placement of concrete.

The upper flange 8 is provided with bolt holes and is fixed on the shell 1 through fastening bolts.

The top of the shell 1 is provided with a notch 10, a rod body 11 is embedded in the notch 10, and further, the rod body can be a screw rod or a long rod bolt.

The positions of the bolt holes and the reinforcing steel bars are distributed in a staggered mode.

The prestressing force is embedded 3 and is provided with a plurality of, and a plurality of prestressing force is embedded 3 and is equidistantly distributed on casing 1. In this embodiment, the embedded prestressed component 3 is a hollow pipe, so that the pipe can be filled with reinforcing steel bars, and the bearing capacity of the embedded prestressed component is further enhanced.

Because the problem of rigidity mutation at the joint of the concrete tower section and the steel tower section is solved, the mechanical property of the joint is improved, the stability of the joint is enhanced, and accordingly, the height of the tower body can be increased to a certain extent or the thickness of the tower wall can be properly reduced under the condition that the height of the tower is not changed.

On the other hand, the utility model discloses a design of piece formula makes things convenient for the transportation for the construction is simpler and easier.

Due to the split operation, the complex operation of monoblock existence at the connection node can be avoided, accidents are reduced or prevented, the construction difficulty is reduced, and the engineering quality is easier to ensure.

A method for installing connecting nodes of a segmented prefabricated combined tower barrel comprises the following steps:

step S1, preparing an upper flange plate, a lower flange plate, fastening bolts, nuts, prestressed embedded parts and prestressed steel bars, and manually binding a plurality of steel bars in advance to form a steel bar cage;

and step S2, penetrating the lower flange plate into the bound reinforcement cage by using a crane, and vertically placing the upper flange plate at a position corresponding to the lower flange plate.

And step S3, the fastening bolts are penetrated through the bolt holes on the upper flange plate in a one-to-one correspondence mode, and the fastening bolts are fixed through nuts.

And step S4, adjusting the lower flange plate and adjusting the position of the fastening bolt on the upper flange plate.

And step S5, placing and fixing the prestress embedded part, and adjusting the steel bars according to the positions of the fastening bolts and the prestress embedded part so as not to interfere with each other.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a prefabricated assembled combination tower section of thick bamboo connected node of segmentation, its characterized in that buries piece (3) and casing (1) including last ring flange (8), lower ring flange (9), prestressing steel (2), prestressing force, prestressing steel (2) constitute the cage form by many reinforcing bars and form, lower ring flange (9) set up in the reinforcing bar lower extreme, go up ring flange (8) and set up in the reinforcing bar upper end, lower ring flange (9) all are fixed with casing (1) with last ring flange (8), prestressing force buries piece (3) and runs through casing (1).

2. The segment prefabricated assembled tower cylinder connection node as claimed in claim 1, wherein the pre-stressed embedded part (3) is a hollow pipe body, and the pipe orifice is provided with a bearing part.

3. The segment prefabricated assembled tower cylinder connecting joint as claimed in claim 2, wherein the force bearing member is a perforated steel plate block (4) and is disposed outside the housing (1).

4. The segment prefabricated assembled tower connection node according to claim 1, wherein the shell (1) is provided with a connection piece (6).

5. The prefabricated sectional tower connecting joint according to claim 1, wherein the bottom of the casing (1) is curved (5).

6. The sectional prefabricated assembled tower tube connecting node according to claim 1, wherein the upper flange plate (8) is provided with bolt holes and is fixed to the housing (1) by fastening bolts.

7. The segment prefabricated assembled tower cylinder connecting joint as claimed in claim 1, wherein a notch (10) is formed in the top of the casing (1), and a rod body (11) is embedded in the notch (10).

8. The prefabricated assembled tower connection node of claim 6, wherein the bolt holes are positioned in a staggered manner with respect to the reinforcement bars.

9. The segment prefabricated assembled tower connection node according to claim 1, wherein a plurality of said pre-stressed inserts (3) are provided, and a plurality of said pre-stressed inserts (3) are equidistantly distributed on the casing (1).