CN114059828B - Stability calculation method of cable-type modular aluminum alloy emergency repair tower and angle aluminum components - Google Patents

Stability calculation method of cable-type modular aluminum alloy emergency repair tower and angle aluminum components Download PDF

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CN114059828B
CN114059828B CN202111106358.9A CN202111106358A CN114059828B CN 114059828 B CN114059828 B CN 114059828B CN 202111106358 A CN202111106358 A CN 202111106358A CN 114059828 B CN114059828 B CN 114059828B
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aluminum alloy
tower column
tower
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angle
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CN114059828A (en
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朱强
俞涵
李淼
张记权
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Guangzhou Power Supply Bureau of Guangdong Power Grid Co Ltd
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/74—Means for anchoring structural elements or bulkheads
    • E02D5/80—Ground anchors
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
    • E04H12/18—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures movable or with movable sections, e.g. rotatable or telescopic
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
    • E04H12/20—Side-supporting means therefor, e.g. using guy ropes or struts
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
    • E04H12/22—Sockets or holders for poles or posts
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
    • E04H12/22—Sockets or holders for poles or posts
    • E04H12/2253—Mounting poles or posts to the holder
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
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    • G06F17/11—Complex mathematical operations for solving equations, e.g. nonlinear equations, general mathematical optimization problems
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2600/00—Miscellaneous
    • E02D2600/30—Miscellaneous comprising anchoring details

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Abstract

The application discloses a stay wire type modularized aluminum alloy rush-repair tower and a calculation method for the stability of an angle aluminum component, which comprise a tower column, a hinged support, stay wires and a stay wire foundation, wherein the stay wires are respectively arranged at two sides of the tower column, one end of each stay wire is connected with the tower column, the other end of each stay wire is fixed on the ground through the stay wire foundation, the tower column consists of a tower column main body and a conical section, the upper end of each conical section is connected with the lower end of the tower column main body, the lower end of each conical section is fixed on the hinged support, the tower column main body is formed by vertically assembling a plurality of standard sections, and the standard sections and the conical sections are truss structures formed by splicing aluminum alloy angle aluminum components. The application has the advantages of few components, light weight, convenient transportation and assembly, high rush repair speed and recovery of power transmission in the shortest time; the stress is simple and clear, the overall stability is good, the bearing capacity is strong, the bearing capacity can bear larger axial pressure, the longitudinal horizontal force and the transverse horizontal force are borne by the pull wire, the stress of the tower column is reduced, and the material consumption is reduced; the sectional assembly mode is adopted, and all standard sections can be exchanged at will, so that the assembly is quick and the connection is firm.

Description

Stay wire type modularized aluminum alloy rush-repair tower and method for calculating stability of corner aluminum component
Technical Field
The application relates to a rush-repair tower, in particular to a stay wire type modularized aluminum alloy rush-repair tower, and also relates to a method for calculating the stability of an angle aluminum component of the stay wire type modularized aluminum alloy rush-repair tower.
Background
Along with the high-speed development of power grid construction, a huge and complex power grid taking an extra-high voltage transmission line as a backbone grid frame is formed. The transmission lines have long paths and wide coverage, the local corridor sections have dense lines, and the transmission lines cross each other or the high-speed railway lines. The overhead line is mostly in mountain areas of high altitude, lightning areas, heavy ice areas and strong wind areas, and has bad natural environment, complex geological topography and changeable climate. Is affected by the phenomena of el nino, lanina and the like, and extreme weather disasters have a remarkable increasing trend. Rain and snow freezing, strong wind, storm, debris flow, landslide and the like caused by extreme weather all form threats to the power grid, broken line and tower falling accidents can occur, and serious property loss is caused for power grid companies, and meanwhile, serious influence is caused for industrial and agricultural production and normal life of people. With the acceleration of social and economic development and urban progress, road, railway and public facilities construction requires more and more line reconstruction examples, and the influence of power grid outage on industrial and agricultural production and resident life is also increasingly enlarged, so that temporary power transmission channels are usually required to be erected.
The rush-repair equipment of the temporary power transmission channel is a rush-repair tower which can be quickly assembled to replace a damaged permanent tower, and when the permanent tower is repaired, a wire is moved to a newly-built permanent tower from the rush-repair tower, and the rush-repair tower is dismantled and stored until the next rush-repair is performed. The emergency repair tower is designed to be mainly used for emergency rescue, can also be used for daily maintenance of towers and wires, and avoids the use of other expensive equipment such as a crane. At present, a power grid system has urgent real demands for line rush repair and temporary line erection, but the existing rush repair tower has the following defects:
the emergency repair tower has the advantages that the structure is heavy, the size and the weight of the structural unit do not fully consider different terrain conditions, and the transportation and the assembly are difficult.
The structural unit of the emergency repair tower is poor in universality and low in assembly efficiency.
The use conditions are more limited, and the use probability is lower in the actual rush-repair engineering.
And the foundation is required to be poured and the temporary pole tower is required to be processed, so that the construction cost is high and the period is long.
After the use of the first-aid repair tower is completed, the temporary line and the pole tower are abandoned, the temporary line and the pole tower cannot be reused, and resource waste is caused.
Disclosure of Invention
The application aims at providing a stay wire type modularized aluminum alloy rush-repair tower which is simple in structure, light in weight, low in construction cost, strong in bearing capacity, convenient to transport and assemble and capable of being repeatedly used.
The first object of the present application is achieved by the following technical measures: the utility model provides a guy type modularization aluminum alloy rush-repair tower, its characterized in that, it includes tower post, hinged support, guy and the foundation of acting as go-between, guy divide to locate the both sides of tower post, its one end is connected with the tower post, and the other end passes through the foundation of acting as go-between to be fixed subaerial, the tower post comprises tower post main part and toper section, the upper end of toper section is connected with the lower extreme of tower post main part, and its lower extreme is fixed on hinged support, the tower post main part is assembled in vertical by a plurality of standard sections and is formed, standard section and toper section all adopt the truss structure that aluminum alloy angle aluminium component concatenation formed.
The application is a wire-drawing tower, adopts the suspension cable structure, has the advantages of few components, light weight (at most two persons can carry), convenient transportation and assembly, simple structure, low construction cost, high construction rush-repair speed, capability of recovering power transmission in the shortest time and reducing power failure time, simple and clear stress, better overall stability, strong bearing capacity, capability of bearing larger axial pressure, longitudinal and transverse horizontal force borne by the wire, capability of reducing the stress of the tower column angle aluminum component, capability of fully utilizing the strength characteristic of the material to reduce the material consumption, and adoption of the sectional assembly form, random exchange among all standard sections, quick assembly and firm and reliable connection; after the emergency repair tower is used, the emergency repair tower can be disassembled for storage and recycled, and resources are saved.
The wire voltage class borne by the emergency repair tower is higher, and the load is larger, so that the aluminum alloy corner aluminum component adopts 7A04 aluminum alloy, and each adjacent section is connected by adopting a locking bolt.
The standard section consists of a three-dimensional rectangular frame and web members, wherein at least two web members are respectively arranged on two opposite side surfaces of the three-dimensional rectangular frame, and each web member is connected with a side rod of the three-dimensional rectangular frame.
In order to make the utilization ratio of the bearing capacity of the main material reasonable, and simultaneously control the specifications of the inclined material and the transverse material to achieve the aim of reducing the tower weight, the web members of the standard section are inclined members, the inclination directions of two adjacent web members are opposite, the web members form an included angle of 45 degrees with the horizontal plane or an included angle of 30 degrees with the horizontal plane, or the web members of the standard section comprise a cross rod and an inclined member which is adjacently arranged with the cross rod and forms an included angle of 45 degrees with the horizontal plane.
The conical section consists of an inverted three-dimensional conical frame and a web member, wherein the web member comprises a cross rod and an inclined rod which are connected with side rods of the three-dimensional conical frame, and the lower end of the conical section is connected with the hinged support through a connecting structure.
The hinged support comprises an upper support, a lower support fixed on the ground, a hinged bolt and a sleeve, wherein the upper support and the lower support are mainly composed of a transverse plate, a pair of vertical plates and a reinforcing plate, the pair of vertical plates are arranged on the transverse plate, the reinforcing plate is arranged between the transverse plate and the vertical plates, the hinged bolt penetrates through the vertical plate ends of the upper support and the lower support, the sleeve is sleeved on a screw rod of the hinged bolt and is arranged between the pair of vertical plates of the upper support and the lower support, the screw rod end of the hinged bolt is provided with a bolt hole so that a bolt can fix a vertical tower column, and the vertical tower column is kept in an upright state by screwing the screw rod on the hinged bolt through a nut.
The connecting structure comprises a fixed seat and a fixed part, wherein the fixed seat is an inverted prismatic table cylinder, the lower end of the fixed seat is welded on the upper surface of a transverse plate of the upper support, the lower end of the conical section is positioned in the fixed seat, and the lower end of a side rod of the conical section is connected with the side wall of the fixed seat through a bolt.
The stay wire foundation comprises a stay wire and a stay wire disc obliquely arranged under the ground, wherein the stay wire disc mainly comprises a bottom plate and a plurality of battens arranged on the bottom plate, the battens are distributed on the bottom plate in a vertical cross shape, and two ends of the stay wire are respectively connected with the stay wire and the battens through rod-flower bolts.
The stay wires positioned on the same side of the tower column are fixed on the same stay wire disc or each stay wire is fixed on different stay wire discs, and as the stay wires are provided with three layers or four layers on two sides of the tower column, in order to reduce the diameter of a stay rod and the connection load of a batten and the stay rod, the stay wire is preferentially connected with the metal batten of the stay wire disc through the stay rod, all the stay wires in the same direction are collected on one stay wire disc, and the applicable stay wire disc is selected according to the resultant force of all the stay wires. When the site conditions are not allowed, the position of each wire can be flexibly arranged according to the topography conditions. When the stay wires are arranged separately, a small-specification stay wire disc is selected according to the tension of each stay wire.
The application has the advantages of small foundation load, prefabricated upright column foundation and wire-drawing foundation, low cost, large span, adaptability to various complex terrains, easy erection and the like, thereby facilitating the treatment, processing and construction of the base surface and accelerating the construction progress.
The second purpose of the application is to provide a method for calculating the stability of the corner aluminum component of the stay wire type modularized aluminum alloy rush-repair tower, which provides a formula for correcting the local buckling reduction coefficient and improves the accuracy of the calculation formula.
The second object of the present application is achieved by the following technical measures: the method for calculating the stability of the corner aluminum component of the stay wire type modularized aluminum alloy rush-repair tower is characterized by comprising the following steps of:
s1, defining a correction coefficientLet->Obtaining:=For->Slenderness ratio with corner aluminum component>Fitting the functional relation of (2); wherein (1)>Is a local stable reduction coefficient;Is a correction coefficient;
s2, obtainingSlenderness ratio with corner aluminum component>Is defined by the relation:
the formula;
s3, calculating a correction coefficientSubstituting the formula to obtain the local stability reduction coefficient +.>；
S4, reducing the local stability coefficientStability calculation formula for substituted corner aluminum component:
in the formula, formula>Is a section asymmetry coefficient, which is close to 1 for an equilateral angular section, for thisThe coefficients are not considered;Is a stability factor;
s5, obtaining a corrected calculation formula of the stability of the corner aluminum component:
description of the formulas
Compared with the prior art, the application has the following remarkable effects:
the cable-stayed tower has the advantages of few components, light weight, convenient transportation and assembly, simple structure, low construction cost and high construction repair speed, can recover power transmission in the shortest time, and reduces the power failure time.
The application has simple and clear stress, better overall stability and strong bearing capacity, can bear larger axial pressure, and longitudinal and transverse horizontal forces are borne by the pull wire, so that the stress of the tower column angle aluminum component is reduced, and the strength characteristic of the material can be fully utilized to reduce the material consumption.
The application adopts a sectional assembly mode, and all standard sections can be exchanged at will, so that the assembly is quick, and the firm and reliable connection is ensured; after the emergency repair tower is used, the emergency repair tower can be disassembled for storage and recycled, and resources are saved.
The application has the advantages of small foundation load, prefabricated upright column foundation and wire-drawing foundation, low cost, large span, adaptability to various complex terrains, easy erection and the like, thereby facilitating the treatment, processing and construction of the base surface and accelerating the construction progress.
The application provides a design calculation method of the aluminum alloy applied to the emergency repair tower, and provides a formula for correcting the local buckling reduction coefficient, so that the accuracy of the calculation formula can be improved.
Drawings
The application will now be described in further detail with reference to the drawings and to specific examples.
FIG. 1 is a schematic view of the overall structure of the present application;
FIG. 2 is a schematic view of the structure of a standard segment (3 m segment) of the present application;
FIG. 3 is a schematic view of the structure of a standard segment (1 meter segment) of the present application;
FIG. 4 is a top view of a standard segment of the present application;
FIG. 5 is a schematic view of the connection of the tapered section to the hinged support of the present application;
FIG. 6 is a schematic illustration of the upper support structure of the articulating support of the present application;
FIG. 7 is a second schematic view of the upper support structure of the hinge support according to the present application;
FIG. 8 is a schematic view of the lower support structure of the hinge support of the present application;
FIG. 9 is a second schematic view of the lower support structure of the hinge support according to the present application;
FIG. 10 is a schematic diagram of the connection of the pull wire coil and the pull rod according to the present application;
fig. 11 is a schematic structural view of a drawing wire coil of the present application;
FIGS. 12 and 13 are schematic structural views of standard segments of other embodiments of the present application;
FIG. 14 is a graph showing the method for calculating the stability of an angular aluminum member according to the present applicationSlenderness ratio with corner aluminum component>Is fitted to the graph.
Description of the embodiments
As shown in fig. 1-11, the stay wire type modularized aluminum alloy rush-repair tower comprises a tower column 1, a hinged support 2, stay wires 3, a stay wire foundation 4 and a cross arm 5 for bearing wires, wherein one end of the stay wire 3 is connected with the tower column 1, the other end of the stay wire is fixed on the ground 6 through the stay wire foundation 4, the stay wires 3 are symmetrically arranged on two sides of the tower column 1, three layers of stay wires are arranged on one side of the stay wire, the included angle alpha of the uppermost layer of stay wires to the ground is 60 degrees, and the included angle alpha of the uppermost layer of stay wires to the ground is 45 degrees. Carrying out stress analysis on a pull wire tower system, providing counter force in the direction perpendicular to the system and along the line direction by the pull wire, and applying pressure to a tower column; the larger the angle of the pull wire to the ground, the greater the pressure applied. The lower extreme of the tower column 1 is fixed on the hinged support 2, the tower column 1 comprises a tower column main body and a conical section 8, the upper end of the conical section 8 is connected with the lower end of the tower column main body, the lower end of the conical section is fixed on the hinged support 2, the tower column main body is vertically assembled by a plurality of standard sections 7, the standard sections and the conical section 8 are truss structures formed by splicing aluminum alloy angle aluminum components through bolts, the aluminum alloy angle aluminum components are specifically 7A04 aluminum alloy, and the standard sections and the conical section 8 are connected by bolts. The standard sections comprise a standard section 7 (see fig. 2) of 3 m sections and a standard section 9 (see fig. 3) of 1 m sections, the standard section 7 of 3 m sections being assembled into the main tower section of the tower, the standard section 9 of 1 m sections being used for adjusting different call heights and tower heights.
The standard section of this embodiment is an oblique arrangement in which the stable bearing capacity is calculated according to a parallel axis of 1 meter. The standard section consists of a three-dimensional rectangular frame and web members 11, wherein at least two web members 11 are respectively arranged on two opposite side surfaces of the three-dimensional rectangular frame, the web members 11 are inclined members, the web members form an included angle of 45 degrees with the horizontal plane, and the inclination directions of the two adjacent web members 11 are opposite. In this embodiment, 6 web members 11 are provided on each side of the 3-meter section standard section 7, and 2 web members 11 are provided on each side of the 1-meter section standard section 9, and each web member 11 is connected to the side bar 10 of the three-dimensional rectangular frame by bolts. Connecting rods 12 for connecting two opposite angles of the three-dimensional rectangular frame are arranged at two ends of the standard section, and the connecting rods 12 are aluminum alloy angle aluminum rods. The side bars of the standard section extend upwardly through the lockbolt connection to the standard section above.
In other embodiments, fig. 12 shows a diagonal arrangement in which the main material calculates a stable load bearing capacity according to a minimum axis of 1 meter, and the web members of the standard section include a cross bar and a diagonal disposed adjacent thereto at an angle of 45 degrees to the horizontal. Fig. 13 shows an oblique arrangement of the main material with a stable bearing capacity calculated according to a 2 m parallel axis, and the web members form an angle of 45 degrees with the horizontal plane.
The conical section 8 consists of an inverted three-dimensional conical frame and a web member 11, the web member 11 comprises a cross rod and an inclined rod which are connected with side rods 13 of the three-dimensional conical frame, the lower end of the conical section 8 is connected with the hinged support 2 through a connecting structure, the upper end of the side rods of the three-dimensional conical frame of the conical section 8 is connected with an angular aluminum member, the upper part of the angular aluminum member is vertical, and the angular aluminum member is connected with a standard section above through a locking bolt.
Referring to fig. 5 to 9, the hinge bracket 2 is welded by Q420 high strength steel plate, the hinge bracket 2 includes an upper bracket 14, a lower bracket 15 fixed on the ground, hinge bolts and a sleeve (not shown), each of the upper bracket 14 and the lower bracket 15 is mainly composed of a cross plate 16, a pair of risers 17 and a reinforcing plate 18, the pair of risers 17 are provided on the cross plate 16, the reinforcing plate 18 is located between the cross plate 16 and the risers 17, the riser end opening 19 of the upper bracket 14 corresponds to the riser end opening 20 of the lower bracket 15, the hinge bolts pass through the riser end opening 19 of the upper bracket 14 and the riser end opening 20 of the lower bracket 15, the sleeve is sleeved on the screws of the hinge bolts and is located between the pair of risers 17 of the upper bracket 14 and the lower bracket 15, the cross plate 16 of the lower bracket 15 is fixed on the ground, the screw ends of the hinge bolts are provided with bolt holes so as to fix the erection column 1, and the column 1 is kept in an erect state by tightening the nuts through the hinge bolts. The pin shaft is made of 42GrMo alloy steel. The hinged support allows free rotation and uniform load distribution.
In this embodiment, the connection structure includes a fixing base 21 and a fixing member, the fixing base 21 is an inverted prismatic table cylinder, the lower end of the fixing base 21 is welded on the upper surface of the transverse plate 16 of the upper support 14, the lower end of the conical section 8 is located in the fixing base 21, and the lower end of the side rod 13 of the conical section 8 is connected with the side wall of the fixing base 21 through the fixing member (bolt).
Referring to fig. 10 and 11, the stay wire 3 is fixed on the ground 6 through the stay wire foundation 4, the stay wire foundation 4 comprises a stay rod 22 and a stay wire disc 23 anchored under the ground 6, the stay wire disc 23 is obliquely arranged and mainly comprises a bottom plate 24 and a plurality of laths 25 arranged on the bottom plate 24, the laths 25 are distributed on the bottom plate 24 in a vertical cross shape, and two ends of the stay rod 22 are respectively connected with the stay wire 3 and the laths 25 through a spline bolt 26.
In this embodiment, 3 pull wires 3 on the same side of the tower column 1 are fixed on the same pull wire disc 23, and because the pull wires are provided with three or four layers on two sides of the tower column, in order to reduce the diameter of the pull rod and the connection load between the battens and the pull rod, the application preferably adopts that each pull wire is connected with the metal battens of the pull wire disc through the pull rod alone, and all the pull wires in the same direction are collected on one pull wire disc, and the applicable pull wire disc is selected according to the resultant force of all the pull wires. When the site conditions are not allowed, the position of each wire can be flexibly arranged according to the topography conditions. When the stay wires are arranged separately, each stay wire is fixed on different stay wire discs, and the stay wire disc with small specification is selected according to the tension of each stay wire.
In addition, the inventor compares the stability test value of the angular aluminum component with the theoretical calculation value through tests, and finds after analysis and calculation that: the result obtained by calculation of the aluminum alloy structural design specification is slightly underestimated for a test piece with a large section, and the theoretical value is far smaller than the test value for a test piece with a small section. The analysis reason, the whole stability calculation of the axial compression aluminum alloy test piece in the specification considers the reduction of the local instability to the stable bearing capacity, and the greater the reduction is for the test piece with large plate width-thickness ratio. Experiments show that the over-limit of the width-to-thickness ratio has little influence on the long column and has great influence on the short column, but the reduction coefficient is irrelevant to the slenderness ratio.
The existing aluminum alloy structural design standard considers the influence of local buckling, only considers the influence of the width-thickness ratio and does not consider the influence of the slenderness ratio, reduces the stable bearing capacity of the component, has larger difference with the test value, and the bearing capacity test value of the component with the large slenderness ratio (100 slenderness ratio) is about twice larger than the standard calculation value. It is necessary to correct the reduction coefficient of the stable calculation formula in consideration of the influence of the component slenderness ratio.
The method for calculating the stability of the corner aluminum component of the stay wire type modularized aluminum alloy rush-repair tower comprises the following steps:
s1, defining a correction coefficientLet->Obtaining:=For->Slenderness ratio with corner aluminum component>Is fitted, see fig. 14; wherein (1)>Is a local stable reduction coefficient;Is a correction coefficient;
s2, obtainingSlenderness ratio with corner aluminum component>Is defined by the relation:
the formula;
s3, calculating and obtaining correction coefficients according to aluminum alloy structural design specificationsSubstituting the formula to obtain the local stability reduction coefficient +.>；
S4, reducing the local stability coefficientStability calculation formula for substituted corner aluminum component:
in the formula, formula>Is a section asymmetry coefficient, which is close to 1 for an equilateral angular section, and is not considered;Is a stability factor;
s5, obtaining a corrected calculation formula of the stability of the corner aluminum component:
the formula is provided.
The embodiments of the present application are not limited thereto, and according to the above-described aspects of the present application, the present application may be modified, replaced or altered in various other ways without departing from the basic technical spirit of the present application, all of which fall within the scope of the claims of the present application, according to the general technical knowledge and conventional means of the present art.

Claims (3)

1.一种拉线式模块化铝合金抢修塔，其特征在于：它包括塔柱、铰接支座、拉线和拉线基础，所述拉线分设于所述塔柱的两侧，其一端与塔柱连接，另一端通过拉线基础固定在地面上，所述塔柱由塔柱主体与锥形段组成，所述锥形段的上端与塔柱主体的下端连接，而其下端固定在铰接支座上，所述塔柱主体由若干标准段在竖向上组装而成，所述标准段和锥形段均是采用铝合金角铝构件拼接而成的桁架结构；所述标准段由立体矩形框架和倾斜的腹杆组成，在立体矩形框架的其中一相对两侧面上分别设置至少两根腹杆，每根腹杆与立体矩形框架的侧杆连接；所述标准段的腹杆为斜杆，相邻两根腹杆的倾斜方向相反，所述腹杆与水平面呈45度夹角或与水平面呈30度夹角，或所述标准段的腹杆包括横杆和与之相邻设置的与水平面呈45度夹角的斜杆；所述锥形段由倒置的立体锥形框架和腹杆组成，所述腹杆包括与立体锥形框架的侧杆连接的横杆和斜杆，所述锥形段的下端通过连接结构与所述铰接支座相连；所述铰接支座包括上支座、固定在地面上的下支座、铰接螺栓和套管，所述上支座和下支座均主要由横板、一对竖板和加强板组成，该对竖板设于所述横板上，所述加强板位于所述横板和所述竖板之间，所述铰接螺栓穿过上支座和下支座的竖板端部，所述套管套于所述铰接螺栓的螺杆上且位于上支座和下支座的该对竖板之间，所述铰接螺栓的螺杆端部设有插销孔以便插销固定立起塔柱，再通过螺母套于铰接螺栓上拧紧而使塔柱保持于直立状态；所述连接结构包括固定座和固定部件，所述固定座是一倒置的棱台形筒体，所述固定座的下端焊接在所述上支座的横板上表面上，所述锥形段的下端位于所述固定座内，所述锥形段的侧杆下端与所述固定座的侧壁通过螺栓连接所述拉线基础包括拉棒和倾斜设置在地面下的拉线盘，所述拉线盘主要由底板和设于底板上的若干板条组成，所述板条在底板上分布为垂直交叉状，所述拉棒的两端分别通过花棒螺栓与拉线和板条连接；1. A guyed modular aluminum alloy emergency repair tower, characterized in that: it comprises a tower column, a hinged support, a guy wire, and a guy wire foundation; the guy wire is located on both sides of the tower column, one end of which is connected to the tower column, and the other end is fixed to the ground via the guy wire foundation; the tower column consists of a tower column body and a conical section; the upper end of the conical section is connected to the lower end of the tower column body, and its lower end is fixed to the hinged support; the tower column body is assembled vertically from several standard sections; both the standard sections and the conical section are truss structures spliced together using aluminum alloy angle aluminum components; the standard section consists of a three-dimensional rectangular frame and an inclined... The structure comprises web members, with at least two web members on each of two opposite sides of a three-dimensional rectangular frame, each web member connected to a side member of the three-dimensional rectangular frame. The web members of the standard section are diagonal members, with adjacent web members in opposite directions of inclination. Each web member forms a 45-degree angle or a 30-degree angle with the horizontal plane. Alternatively, the web members of the standard section may include a horizontal member and an adjacent diagonal member forming a 45-degree angle with the horizontal plane. The tapered section consists of an inverted three-dimensional tapered frame and web members. Each web member includes a horizontal member and a diagonal member connected to the side member of the three-dimensional tapered frame. The lower end of the tapered section is connected via a connecting structure. The structure is connected to the hinged support; the hinged support includes an upper support, a lower support fixed to the ground, a hinge bolt, and a sleeve. Both the upper and lower supports are mainly composed of a horizontal plate, a pair of vertical plates, and a reinforcing plate. The pair of vertical plates are located on the horizontal plate, and the reinforcing plate is located between the horizontal plate and the vertical plates. The hinge bolt passes through the ends of the vertical plates of the upper and lower supports. The sleeve is fitted onto the threaded rod of the hinge bolt and is located between the pair of vertical plates of the upper and lower supports. The threaded rod of the hinge bolt has a pin hole for pinning and fixing the tower column. A nut is then fitted onto the hinge bolt and tightened to secure it. The tower column remains upright; the connection structure includes a fixed base and a fixing component. The fixed base is an inverted frustum-shaped cylinder. The lower end of the fixed base is welded to the upper surface of the horizontal plate of the upper support. The lower end of the tapered section is located inside the fixed base. The lower end of the side rod of the tapered section is connected to the side wall of the fixed base by bolts. The guy wire foundation includes a guy rod and a guy wire disc inclined below the ground. The guy wire disc is mainly composed of a base plate and several strips on the base plate. The strips are distributed vertically and crosswise on the base plate. The two ends of the guy rod are connected to the guy wire and the strips by bolts. 铝合金角铝构件为非焊接单轴对称截面的轴心受压构件，对铝合金角铝构件的稳定性计算公式的折减系数进行考虑构件长细比影响的修正，修正后的铝合金角铝构件稳定性计算公式：Aluminum alloy angle members are axially compressed members with non-welded, single-axis symmetric sections. The reduction factor in the stability calculation formula for aluminum alloy angle members is modified to account for the influence of the member's slenderness ratio. The modified stability calculation formula for aluminum alloy angle members is as follows: 式中：是修正系数，根据《铝合金结构设计规范》可计算得到；是截面非对称系数，对于等边角形截面而言接近于1，对此系数不作考虑；是稳定系数；是铝合金角铝构件长细比。 In the formula: It is a correction factor, which can be calculated according to the "Code for Design of Aluminum Alloy Structures"; This is the cross-sectional asymmetry coefficient, which is close to 1 for equilateral angle cross-sections, so this coefficient is not considered. It is the stability coefficient; It refers to the slenderness ratio of aluminum alloy angle components. 2.根据权利要求1所述的拉线式模块化铝合金抢修塔，其特征在于：所述铝合金角铝构件采用7A04铝合金，且各相邻段之间采用防松动螺栓连接。2. The wire-driven modular aluminum alloy emergency repair tower according to claim 1, characterized in that: the aluminum alloy angle aluminum component is made of 7A04 aluminum alloy, and each adjacent section is connected by anti-loosening bolts. 3.根据权利要求2所述的拉线式模块化铝合金抢修塔，其特征在于：位于塔柱同侧的拉线固定在同一拉线盘上或者每根拉线固定在不同的拉线盘上。3. The guyed modular aluminum alloy emergency repair tower according to claim 2, characterized in that: the guy wires located on the same side of the tower column are fixed on the same guy wire reel or each guy wire is fixed on a different guy wire reel.
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