CN-122014510-A - Spiral cross type energy dissipation web member for lattice type wind power tower

CN122014510ACN 122014510 ACN122014510 ACN 122014510ACN-122014510-A

Abstract

The invention discloses a spiral crossed energy dissipation web member for a lattice type wind power tower, and relates to the field of lattice type wind power towers. The spiral crossed energy dissipation web member for the lattice wind power tower comprises a constraint sleeve, a central main rod, a mounting base, a section of spiral sheet and a plurality of distance detection pieces. This a spiral cross formula power consumption web member for lattice wind-powered electricity generation pylon adopts the structure of installing second half section spiral thin slice and first half section spiral thin slice between central mobile jib and restraint sleeve to install the structure of first power consumption metal sheet and second power consumption metal sheet on the central mobile jib, the structure of being convenient for change is convenient for daily maintenance, and it can be under axial pull and press the power consumption, can produce the plastic deformation in coordination under torsion, shearing, crooked combined action simultaneously, forms the multidimensional hysteresis loop, improves the unit mass power consumption efficiency of web member, strengthens the buckling stability of member through spiral cross structure.

Inventors

ZHAO JIZHI
ZHOU XUHONG
WANG YUHANG
Qin Peiming
WANG HONGYU
LI YAN
ZHONG HAOYANG

Assignees

重庆大学

Dates

Publication Date: 20260512
Application Date: 20260206

Claims (10)

1. A spiral cross-type energy dissipating web member for a lattice wind tower, comprising: the central main rod (2) is sleeved with a constraint sleeve (1), a plurality of contact limiting blocks are fixedly connected to the inner wall of the constraint sleeve (1), and the central main rod (2) is provided with an energy consumption metal plate; The installation base (3) is fixedly connected to the bottom of the central main rod (2), a lower half-section spiral sheet (4) is arranged on the installation base (3), an upper half-section spiral sheet (5) is arranged on the lower half-section spiral sheet (4), and the upper end of the upper half-section spiral sheet (5) is arranged at the upper end of the central main rod (2); The distance detection pieces are arranged between the central main rod (2) and the constraint sleeve (1), and the transmission pieces are arranged on the constraint sleeve (1).
2. A spiral cross-type energy dissipating web member for a lattice wind power tower according to claim 1, wherein the central main rod (2) is provided with a second connection end (21), and the central main rod (2) is internally stamped with a wire passing hole (22).
3. The spiral cross type energy dissipation web member for the lattice wind power tower according to claim 2, wherein a first sheet mounting seat (31) is fixedly connected to the mounting base (3), the lower half section spiral sheet (4) is mounted on the first sheet mounting seat (31), a first arc bending bolt (32) is connected between the first sheet mounting seat (31) and the lower half section spiral sheet (4) in a threaded mode, a fixed connection ring (52) is fixedly connected to the side wall of the second connection end (21) through a bolt, a second sheet mounting seat (51) is fixedly connected to the peripheral wall of the fixed connection ring (52), the upper end of the upper half section spiral sheet (5) is mounted in the second sheet mounting seat (51), and a second arc bending bolt (54) is connected between the second sheet mounting seat (51) and the upper half section spiral sheet (5) in a threaded mode.
4. The spiral cross type energy dissipation web member for the lattice wind power tower according to claim 1, wherein an installation notch (41) is formed in the upper end of the lower half spiral sheet (4), a square connecting piece (53) is fixedly connected to the lower end of the upper half spiral sheet (5), the square connecting piece (53) is inserted into the installation notch (41), the square connecting piece (53) is fixedly connected with the lower half spiral sheet (4) through bolts, the inner sides of the lower half spiral sheet (4) and the upper half spiral sheet (5) are tightly attached to the peripheral wall of the central main rod (2), and the outer sides of the lower half spiral sheet (4) and the upper half spiral sheet (5) are tightly attached to the inner wall of the constraint sleeve (1).
5. The spiral cross type energy dissipation web member for the lattice wind power tower according to claim 2, wherein a connecting seat (11) is fixedly connected to the lower end of the constraint sleeve (1), a first connecting end (14) is fixedly connected to the upper end of the constraint sleeve (1), the first connecting end (14) abuts against a second connecting end (21), and a mounting plate (15) is fixedly connected to the outer wall of the constraint sleeve (1).
6. The spiral cross type energy dissipation web member for a lattice wind power tower according to claim 5, wherein the contact limiting block comprises a first spiral contact block (12) and a second spiral contact block (13), the first spiral contact block (12) is fixedly connected to the position, close to the connecting seat (11), of the constraint sleeve (1), the second spiral contact block (13) is fixedly connected to the position, close to the first connecting end (14), of the constraint sleeve (1), the connecting seat (11), the first connecting end (14), and the first spiral contact block (12) and the second spiral contact block (13) are integrally formed.
7. A spiral cross-type energy dissipating web for a lattice wind tower according to claim 5, wherein the transmission member comprises a transmission connector (8) and a remote signal connector (81), the transmission connector (8) being mounted on a mounting plate (15), the transmission connector (8) being in communication with a distance detecting member, the remote signal connector (81) being mounted on the transmission connector (8).
8. The spiral cross type energy dissipation web member for the lattice wind power tower according to claim 1, wherein the energy dissipation metal plate comprises a first energy dissipation metal plate (6) and a second energy dissipation metal plate (61), the first energy dissipation metal plate (6) is installed at the middle position of the central main rod (2), the second energy dissipation metal plate (61) is installed at the outer side of the first energy dissipation metal plate (6), and a third arc bending bolt (62) is connected among the central main rod (2), the first energy dissipation metal plate (6) and the second energy dissipation metal plate (61) in a threaded mode.
9. The spiral cross type energy dissipation web for a lattice wind power tower according to claim 6, wherein the distance detection piece comprises a first displacement sensor (7), a second displacement sensor (71) and a third displacement sensor (72), the first displacement sensor (7) is fixedly connected to the lower half spiral sheet (4), the detection end of the first displacement sensor (7) is right opposite to the upper half spiral sheet (5), the second displacement sensor (71) is installed in the first spiral contact block (12), the detection end of the second displacement sensor (71) is right opposite to the lower half spiral sheet (4), the third displacement sensor (72) is installed in the second spiral contact block (13), and the output end of the third displacement sensor (72) is right opposite to the upper half spiral sheet (5).
10. A spiral cross-type dissipative web for a lattice wind tower according to claim 8, wherein the first dissipative metal sheet (6) is made of a memory alloy material and the second dissipative metal sheet (61) is made of a conventional strength steel sheet material.

Description

Spiral cross type energy dissipation web member for lattice type wind power tower Technical Field The invention relates to the field of lattice wind power towers, in particular to a spiral cross energy dissipation web member for a lattice wind power tower. Background Under the trend of large wind power, the lattice wind power tower breaks through the traditional design by using a space rod system structure, the web members of the lattice wind power tower mostly adopt high-strength steel pipes, the modern lattice tower fuses a prestress technology and steel pipe concrete combined structure, the transportation cost is reduced by 30%, and the lattice wind power tower becomes an ideal solution for high-cold and high-vibration areas and distributed wind power scenes. The lattice type wind power hybrid support structure is used as a support system of an ultra-high wind power tower, the web members of the lattice type wind power hybrid support structure bear main energy dissipation tasks under the action of external load, particularly earthquake and strong wind coupling load, the traditional web members usually adopt axial tension and compression rod pieces, and when the earthquake cyclic load is encountered, hysteresis energy consumption of the lattice type wind power hybrid support structure mainly depends on tension and compression to repeatedly yield. However, this mode of axial dissipation suffers from the following significant drawbacks: Firstly, when the structure is subjected to reciprocating load, the hysteresis loop is in a 'sharp angle shape', so that the energy is easy to absorb and release, the energy dissipation efficiency is limited, the equivalent viscous damping coefficient is low, and the shock resistance of the structure is influenced; secondly, under the bending combined action scene, the traditional web member is easy to have complex failures such as asymmetric hysteresis, torsion buckling and the like, is difficult to effectively resist complex stress, greatly reduces structural durability and influences engineering safety. Disclosure of Invention The invention aims to provide a spiral cross type energy dissipation web member for a lattice type wind power tower, which is used for solving the problems in the background art. In order to achieve the purpose, the invention provides the following technical scheme that the spiral cross energy dissipation web member for the lattice wind power tower comprises: the central main rod is sleeved with a constraint sleeve, the inner wall of the constraint sleeve is fixedly connected with a plurality of contact limiting blocks, and the central main rod is provided with an energy consumption metal plate; The installation base is fixedly connected to the bottom of the central main rod, a lower half-section spiral sheet is arranged on the installation base, an upper half-section spiral sheet is arranged on the lower half-section spiral sheet, and the upper end of the upper half-section spiral sheet is arranged at the upper end of the central main rod; The distance detection pieces are arranged between the central main rod and the constraint sleeve, and the transmission pieces are arranged on the constraint sleeve. The center main rod is provided with a second connecting end, and a wire passing hole is formed in the center main rod in a punching mode. The first thin slice mount pad of fixedly connected with on the installation base, the second thin slice is installed on first thin slice mount pad, threaded connection has first curved arc bolt between first thin slice mount pad and the second thin slice, fixedly connected with fixed connection ring through the bolt on the second link lateral wall, fixedly connected with second thin slice mount pad on the fixed connection ring periphery wall, first thin slice upper end is installed in second thin slice mount pad, threaded connection has second curved arc bolt between second thin slice mount pad and the first thin slice. The upper end of the lower half section spiral sheet is provided with a mounting notch, the lower end of the upper half section spiral sheet is fixedly connected with a square connecting piece, the square connecting piece is inserted into the mounting notch, the square connecting piece is fixedly connected with the lower half section spiral sheet through a bolt, the inner sides of the lower half section spiral sheet and the upper half section spiral sheet are tightly attached to the peripheral wall of the central main rod, and the outer sides of the lower half section spiral sheet and the upper half section spiral sheet are tightly attached to the inner wall of the constraint sleeve. The device comprises a constraint sleeve, a connecting seat, a first connecting end, a second connecting end, a mounting plate and a connecting sleeve, wherein the connecting seat is fixedly connected to the lower end of the constraint sleeve, the first connecting end is fixedly connected to the upper end of the const