CN215859364U

CN215859364U - Three-column conical lattice iron tower

Info

Publication number: CN215859364U
Application number: CN202121848224.XU
Authority: CN
Inventors: 黄晓帆; 许伟智; 段凯; 江波; 高彬; 赵国彪; 苏林
Original assignee: China Iron Tower Corp Kashgar Branch
Current assignee: China Iron Tower Corp Kashgar Branch
Priority date: 2021-08-09
Filing date: 2021-08-09
Publication date: 2022-02-18
Anticipated expiration: 2031-08-09

Abstract

The utility model belongs to an improvement of a communication iron tower structure, in particular to a three-column conical lattice iron tower which is formed by connecting a first tower section, a second tower section, a third tower section, a fourth tower section and an Nth tower section through connecting flanges, wherein the first, second and third tower sections are structurally three upright columns which are arranged in a regular triangular pyramid shape, the upper ends and the lower ends of the three upright columns are provided with the connecting flanges, the fourth to Nth tower sections are structurally three upright columns which are arranged in a regular triangular pyramid shape, the upper ends and the lower ends of the three upright columns are respectively provided with the connecting flanges, the upper end of the first tower section is provided with a lightning rod, the upright columns of the first tower section are respectively provided with holding rods, and the connecting flanges at the lower end of the Nth tower section are fixedly connected on an iron tower base through bolts. The utility model has the advantages of reasonable structure, convenient installation, light weight of the tower body, small foot opening, optimized arrangement of the tower footing, small concrete volume of the tower footing, small wind load coefficient and high wind resistance coefficient, and can be integrally processed and transported in a single section.

Description

Three-column conical lattice iron tower

Technical Field

The utility model belongs to an improvement of an iron tower structure for communication, and particularly relates to a three-column conical lattice iron tower.

Background

At present, the rapid development of mobile communication puts higher requirements on the construction of a communication base station, and meanwhile, the improvement of the communication tower antenna technology can make the beautification of the tower more possible. At present, the traditional angle steel tower or the single-pipe tower all adopt a large outer platform, the antenna is installed on a railing of the outer platform, and the tower type of the tower body limits the hanging height of the antenna, so that the communication effect of a communication base station is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a three-column conical latticed iron tower which is reasonable in structure, convenient to install, light in weight of a tower body, small in foot opening, capable of being optimally arranged, small in concrete volume used for the tower foundation, small in wind load coefficient, high in wind resistance coefficient and capable of being integrally processed and transported in a single section.

The purpose of the utility model is realized as follows: a three-column conic lattice tower is composed of the first, the second, the third and the fourth tower segments, the Nth tower segments, the connecting flanges between said first, the second and the third tower segments, the transverse struts axially and uniformly arranged on the cylindrical surface between adjacent two vertical columns, the diagonal struts axially and uniformly arranged between said transverse struts, the connecting flanges at the upper and lower ends of three vertical columns, the diagonal struts axially and uniformly arranged between adjacent two vertical columns, and the connecting frames for equilateral triangle, The lower extreme is setting up flange respectively, first tower section, the second tower section, the third tower section, fourth tower section to Nth tower section matched with stand in proper order on, the lower extreme is located same axis, the flange size and the bolt aperture homogeneous phase of this cooperation department are equal to as an organic whole through bolted connection, set up the lightning rod in the upper end of first tower section, setting up respectively on the stand of first tower section and embracing the pole, the flange of Nth tower section lower extreme passes through rag bolt rigid coupling on iron tower basis.

The utility model relates to a three-column conical lattice tower, wherein the main material is a galvanized steel pipe, and the cross braces and the inclined braces are round steel; the tower body is additionally provided with two layers of supports, and each layer of supports comprises three holding rods.

The main control parameters are a tower body displacement ratio, an auxiliary member length-thin ratio and a main material stress ratio;

the section of the tower body of the utility model is in the form of a triangle, and the tower body is opened with a small heel, and the lattice tower comprises a tower foundation, a tower column, a cross brace, an inclined brace, an antenna bracket, a lightning rod and other devices. The tower column adopts seamless steel pipes as main materials, and has small wind load coefficient and high wind resistance coefficient; the tower shape is designed along with the change of a wind load curve, the following is gradually reduced from bottom to bottom, the line is smooth, and the tower shape is reasonable; the tower body has light dead weight, and compared with the existing three-pipe tower, the tower body has light dead weight, single section can be integrally processed and transported, the installation is convenient, the manufacturing cost is low, and the construction period is short.

The tower body of the utility model has small windward area, small bending moment value of design parameters and light material weight under the same condition by carrying out design analysis through the space truss tower, and the lattice tower can be processed and produced by using conventional steel pipe materials, the raw materials are simple to process and wide in source, and the process level of the tower body determines the cost of the iron tower; because the design parameters are smaller, the design performance of the iron tower foundation is more obvious, the consumption of concrete is low, the consumption of reinforcing steel bars is less, and the cost of the tower foundation is lower. Because the tower type is optimized, the cost of the tower body and the tower foundation can be reduced simultaneously.

Lattice landscape tower: compared with the traditional iron tower mast, the lattice type steel structure has the advantages that the main materials are connected through bolts, and the auxiliary materials are welded through girth welding, so that the method is more convenient and faster to mount and later expand, the original tower mast section can be disassembled and replaced aiming at the later-stage tower mast increase, the requirement of hanging height is quickly met by replacing the high tower section, and meanwhile, the tower weight reduction can be optimized and reduced compared with the iron tower foundation, and the investment is reduced. The method is suitable for various scenes, and can be installed by matching with the traditional iron tower foundation and adopting the earth surface foundation.

The utility model has reasonable form arrangement and light tower body weight; the foot pedal is small in root, the tower footing can be optimally arranged, and the volume of concrete used by the tower footing is small; the construction amount is small, and the construction period is short. Compare with traditional single-pipe tower, the dead weight is lighter, and iron tower basis cost is lower, and the space is stronger can be reformed transform in the later stage.

Compared with the prior art, the tower weight of the utility model is reduced by 5 percent compared with the tower with the same tower height, the mounting capacity is improved to 4 platforms from the original 2 platforms, the manufacturing cost of the whole tower mast is reduced by 5000 yuan/base, and the manufacturing cost of the whole station site is reduced by 15000 yuan/station site.

The lattice structure form of the utility model is a mature structure form commonly applied in large-span stadiums and bridges. The bearing capacity is large, and the material is saved. The whole tower adopts circular tubes, the auxiliary material of the traditional three-tube tower is angle steel, the strength requirement is the same, and the steel tubes are only 1/3 of the windward area of the angle steel; meanwhile, the shape coefficient of the round is 0.6, the shape coefficient of the angle steel is 1.3, and the equivalent wind load of the auxiliary material is only 15% of that of the traditional three-pipe tower. The whole weight of the iron tower is greatly reduced. Due to the reduction of the wind resistance of the whole tower, the bending moment transmitted to the foundation is greatly reduced, and the size of the foundation is smaller. Compared with a single-tube tower, the processing is simpler, large-scale plate rolling machines and other equipment are not needed, and the processing can be locally carried out in most cities in Xinjiang.

The main material is 6 meters, and the whole tower has less waste. (waste is below 5%, single-tube column waste is generally around 15%).

The utility model has the advantages of reasonable structure, convenient installation, light weight of the tower body, small foot opening, optimized arrangement of the tower footing, small concrete volume of the tower footing, small wind load coefficient, high wind resistance coefficient and single-section integral processing and transportation.

Drawings

The present invention will be further described with reference to the accompanying drawings, where fig. 1 is a schematic front view structure of the present invention, fig. 2 is a schematic front view structure of a first tower segment, fig. 3 is a schematic front view structure of a second tower segment, fig. 4 is a schematic front view structure of a fourth tower segment, fig. 5 is a schematic front view structure of a transverse partition, fig. 6 is a schematic front view structure of a connection flange, fig. 7 is a schematic top view structure of fig. 6, fig. 8 is a schematic front view structure of a holding pole, fig. 9 is a schematic top view structure of fig. 8, fig. 10 is a schematic front view structure of a lightning rod, fig. 11 is a schematic top view structure of fig. 10, fig. 12 is a schematic top view structure of a foundation bolt installed in a tower, fig. 13 is a schematic front view structure of a positioning plate, and fig. 14 is a layout diagram of a connection flange at the lower end of three columns of an nth tower segment.

Detailed Description

A three-column conical lattice iron tower is shown in figures 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 and 14 and is formed by connecting a first tower section 1, a second tower section 2, a third tower section 3, a fourth tower section 4 and an Nth tower section 6 through a connecting flange 7, wherein the first, second and

third tower sections

1, 2 and 3 are structurally three upright columns 10 arranged in a regular triangular pyramid shape, cross braces 11 are respectively and axially and uniformly connected on the cylindrical surface between every two adjacent upright columns 10, inclined braces 12 connected end to end are arranged between the uniformly distributed cross braces 11, the connecting flange 7 is respectively arranged at the upper end and the lower end of each three upright columns 10, the three upright columns 10 arranged in a regular triangular pyramid shape are respectively arranged on the upper end and the lower end of each fourth tower section 4 to the Nth tower section 6, the cross braces 11 are respectively and axially and uniformly distributed on the cylindrical surface between every two adjacent upright columns 10, the connecting frames form equilateral triangle, transverse partitions 14 which are inner equilateral triangles are arranged in each connecting frame, herringbone inclined struts 13 are respectively connected between two adjacent transverse struts 11, connecting flanges 7 are respectively arranged at the upper ends and the lower ends of the three upright columns 10, a first tower section 1, a second tower section 2, a third tower section 3, a fourth tower section 4 to an Nth tower section 6 are sequentially matched with the upper ends and the lower ends of the upright columns 10 on the same axis, the sizes of the connecting flanges 7 at the matched positions are equal to the diameters of bolts, the connecting flanges are connected into a whole through the bolts, a lightning rod 9 is arranged at the upper end of the first tower section 1, holding rods 8 are respectively arranged on the upright columns 10 of the first tower section 1, and the connecting flanges 7 at the lower end of the Nth tower section 6 are fixedly connected on an iron tower base through foundation bolts 21. The distance between the upper end axes of two adjacent upright columns 10 of the first tower section 1 is 500mm, and the distance between the lower end axes of two adjacent upright columns 10 of the Nth tower section 6 is 1200 mm. The diameter of the upright column 10 of the first tower section is 70mm, the diameter of the upright column 10 of the second tower section is 89mm, the diameter of the upright column 10 of the third tower section is 114mm, the diameter of the upright column 10 of the fourth tower section is 133mm, the diameter of the upright column 10 of the Nth tower section is 159mm, the lengths of the first tower section 1, the second tower section 2, the third tower section 3, the fourth tower section 4 to the Nth-1 tower section 5 are 6000mm, and the length of the Nth tower section 6 is 5000 mm. The connecting flange 7 is a disc-shaped flange 15 with a central hole, the end part of the upright post 10 is fixedly connected on the central hole of the flange 15, 6 reinforcing plates 16 are uniformly and fixedly connected between the end wall of the upright post 10 and the flange surface, and 6 bolt holes 17 are uniformly distributed on the flange 15. An upper group of cross rods and a lower group of cross rods are respectively and uniformly distributed on three upright posts 10 of the first tower section 1 in the axial direction, and each group of cross rods is connected with a holding rod 8. The holding pole 8 is composed of a steel pipe with the diameter of 50mm, the length of the holding pole 8 is 2500mm, a cross rod connected with the holding pole 8 is composed of No. 5 channel steel, and the length of the cross rod is 500 mm. The structure of lightning rod 9 is setting up the awl point in the steel pipe upper end of diameter 50mm, is setting up base 18 at the lower extreme of this steel pipe, and the equipartition is setting up three reinforcing plates 16 between the lower extreme of this steel pipe and base 18, and 6 bolt holes are being set up to the equipartition on base 18, and the total length of lightning rod 9 is 3000 mm. Set up locating plate 19 and anchor plate 20 in the iron tower basis, rag bolt 21 is stud, and its lower screw rod is installing anchor plate 20 through the nut, and two nuts are being installed in the cooperation on the lower screw rod that is located anchor plate 20 below, and locating plate 19 is being installed through the nut to the last screw rod of rag bolt 21, is installing gasket and two nuts on the last screw rod that is located locating plate 19 in proper order. The anchoring plate 20 is structured in such a way that 6 bolt holes are uniformly distributed on a concentric circle of a disc-shaped steel plate, the outer diameter of the anchoring plate 20 is 710mm, the thickness of the steel plate is 10mm, the positioning plate 19 is structured in such a way that a central hole 22 is arranged on the disc-shaped steel plate and 6 bolt holes corresponding to the bolt holes of the anchoring plate 20 are uniformly distributed on the concentric circle, the outer diameter of the positioning plate 19 is 460mm, the diameter of the central hole 22 is 159mm, and the thickness of the steel plate is 8 mm. The tower comprises three upright columns 10 which are respectively arranged from a first tower section 1, a second tower section 2, a third tower section 3 and a fourth tower section 4 to an N-1 tower section 5, cross braces 11 which are respectively axially and uniformly distributed and connected on the cylindrical surface between every two adjacent upright columns 10 are 750mm in distance, and cross braces 11 which are respectively axially and uniformly distributed and connected on the cylindrical surface between every two adjacent upright columns 10 of the N tower section are 625mm in distance.

Claims

1. A three-column conical latticed iron tower is characterized in that the three-column conical latticed iron tower is formed by connecting a first tower section (1), a second tower section (2), a third tower section (3), a fourth tower section (4) and an Nth tower section (6) through connecting flanges (7), wherein the first, second and third tower sections (1, 2 and 3) are structurally three upright columns (10) which are arranged in a regular triangular pyramid shape, cross braces (11) are respectively and uniformly connected on the cylindrical surface between every two adjacent upright columns (10), inclined braces (12) which are connected end to end are arranged between the uniformly distributed cross braces (11), the connecting flanges (7) are respectively arranged at the upper end and the lower end of the three upright columns (10), the fourth tower section (4) to the Nth tower section (6) are structurally three upright columns (10) which are arranged in a regular triangular pyramid shape, and the cross braces (11) are respectively and uniformly distributed on the cylindrical surface between every two adjacent upright columns (10), forming equilateral triangle connecting frames, arranging transverse partitions (14) in each connecting frame, which are in the shape of an inner equilateral triangle, herringbone inclined struts (13) are respectively connected between two adjacent transverse struts (11), connecting flanges (7) are respectively arranged at the upper and lower ends of the three upright columns (10), the upper and lower ends of the upright columns (10) which are sequentially matched with the first tower section (1), the second tower section (2), the third tower section (3), the fourth tower section (4) to the Nth tower section (6) are positioned on the same axis, the size of the connecting flange (7) at the matching position is equal to the hole diameter of the bolt, and the connecting flange and the bolt are connected into a whole through the bolt, the lightning rod (9) is arranged at the upper end of the first tower section (1), the holding rods (8) are respectively arranged on the upright posts (10) of the first tower section (1), and the connecting flange (7) at the lower end of the Nth tower section (6) is fixedly connected to the iron tower foundation through foundation bolts (21).

2. The three-column conical lattice iron tower as claimed in claim 1, wherein the distance between the upper end axes of two adjacent columns (10) of the first tower section (1) is 500mm, and the distance between the lower end axes of two adjacent columns (10) of the Nth tower section (6) is 1200 mm.

3. The three-column conical lattice iron tower as claimed in claim 1, wherein the diameter of the column (10) of the first tower section is 70mm, the diameter of the column (10) of the second tower section is 89mm, the diameter of the column (10) of the third tower section is 114mm, the diameter of the column (10) of the fourth tower section is 133mm, the diameter of the column (10) of the Nth tower section is 159mm, the lengths from the first tower section (1), the second tower section (2), the third tower section (3), the fourth tower section (4) to the Nth-1 tower section (5) are 6000mm, and the length of the Nth tower section (6) is 5000 mm.

4. The three-column conical latticed iron tower as claimed in claim 1, wherein the connecting flange (7) is in the structure of a disc-shaped flange plate (15) with a central hole, the end part of the upright column (10) is fixedly connected to the central hole of the flange plate (15), 6 reinforcing plates (16) are fixedly and uniformly distributed between the end wall of the upright column (10) and the flange plate surface, and 6 bolt holes (17) are uniformly distributed on the flange plate (15).

5. The three-column conical lattice iron tower as claimed in claim 1, wherein an upper group of cross bars and a lower group of cross bars are axially and uniformly distributed on three vertical columns (10) of the first tower section (1), and each group of cross bars is connected with a holding pole (8).

6. The three-column tapered lattice iron tower as claimed in claim 1, wherein the holding pole (8) is made of steel pipes with a diameter of 50mm and a length of 2500mm, and the cross bar connecting the holding pole (8) is made of No. 5 channel steel and has a length of 500 mm.

7. The three-column conical lattice iron tower as claimed in claim 1, wherein the lightning rod (9) is structured such that a conical tip is provided at the upper end of a steel pipe having a diameter of 50mm, a base (18) is provided at the lower end of the steel pipe, three reinforcing plates (16) are uniformly provided between the lower end of the steel pipe and the base (18), 6 bolt holes are uniformly provided in the base (18), and the total length of the lightning rod (9) is 3000 mm.

8. The three-column conical latticed iron tower according to claim 1, wherein a positioning plate (19) and an anchoring plate (20) are arranged in an iron tower foundation, anchor bolts (21) are double-headed bolts, lower screw rods of the anchor bolts are provided with the anchoring plate (20) through nuts, double nuts are arranged on the lower screw rods positioned below the anchoring plate (20) in a matched mode, upper screw rods of the anchor bolts (21) are provided with the positioning plate (19) through nuts, and a gasket and the double nuts are sequentially arranged on the upper screw rods positioned above the positioning plate (19).

9. The three-column conical lattice iron tower as claimed in claim 8, wherein the anchoring plate (20) is structured such that 6 bolt holes are uniformly distributed on a concentric circle of a disc-shaped steel plate, the outer diameter of the anchoring plate (20) is 710mm, the thickness of the steel plate is 10mm, the positioning plate (19) is structured such that a central hole (22) is formed in the disc-shaped steel plate and 6 bolt holes corresponding to the bolt holes of the anchoring plate (20) are uniformly distributed on the concentric circle thereof, the outer diameter of the positioning plate (19) is 460mm, the diameter of the central hole (22) is 159mm, and the thickness of the steel plate is 8 mm.

10. The three-column tapered lattice iron tower as claimed in claim 1, wherein the three columns (10) are respectively arranged from the first tower section (1), the second tower section (2), the third tower section (3), the fourth tower section (4) to the (N-1) th tower section (5), the cross braces (11) are respectively and axially and uniformly distributed and connected on the cylindrical surface between every two adjacent columns (10) at a distance of 750mm, and the cross braces (11) are respectively and axially and uniformly distributed and connected on the cylindrical surface between every two adjacent columns (10) of the (N) th tower section at a distance of 625 mm.