Mechanized construction assembly type iron tower node structure and construction method thereof

Abstract

The invention discloses a mechanical construction assembly type iron tower node structure and a construction method thereof, and relates to the technical field of assembly type iron towers. The mechanical construction assembly type iron tower node structure comprises a first T-shaped connecting piece composed of a first wing plate and a first web plate; the second wing plate and the second web plate form a second T-shaped connecting piece; a connecting hole I and a connecting hole II are formed in the plate surface of the web plate I; a connecting hole III and a connecting hole IV are formed in the plate surface of the web plate II; a positioning through hole I is formed in the plate surface of the wing plate I; a positioning through hole II is formed in the plate surface of the wing plate II; the guide positioning pin can be connected into the positioning through hole I; one end of the rope is connected with the guide positioning pin; the other end of the rope can penetrate through the second positioning through hole and drag the guide positioning pin to penetrate into the second positioning through hole, so that the first positioning through hole and the second positioning through hole are coaxially connected. Through the improved design of the joint structure, the assembling mode of an existing iron tower connecting joint is simplified, tower materials can be rapidly placed in place, and the construction operation difficulty and the working amount of high-altitude operation are reduced.

Description

Technical Field

[0001] This invention relates to the field of prefabricated steel tower technology, and in particular to a mechanized construction prefabricated steel tower node structure and its construction method. Background Technology

[0002] Currently, overhead transmission line angle steel towers are constructed by bolting together angle steel, gusset plates, and other components. The locations where bolts connect different components are called nodes. Nodes are critical points for force transmission between different components and have complex structures. During construction and installation, nodes are often used as segmentation points, and installation is carried out segment by segment.

[0003] A node consists of the angle steel members being connected, a gusset plate, and bolts. Existing connection methods are described below. Figure 13 As shown, the upper and lower sections are connected. The lower right corner of the upper section is connected to the upper right corner of the lower section to form a main material joint node of the power transmission tower. The upper and lower main materials of this node are connected by the lower main material and the upper main material, through the outer plate, the inner angle steel and the bolts.

[0004] During the tower erection process, the lower section of the tower frame should be erected and installed first. (See below) Figure 13 The lower section of the main tower member 81 is installed and fixed to the already assembled tower; the upper section of the main tower member 81 and the diagonal member 822 are installed and tightened with the node plate 7 after being tightly attached to the top. See the attached node plate 7 for the completed installation status of the main tower member 81, diagonal member 822, and transverse member 821. Figure 13 As shown. In actual construction, if the entire section is assembled, four main members and eight diagonal members need to be installed simultaneously; if the tower sections are assembled, two main members and two diagonal members need to be installed simultaneously. At high altitudes, the insertion and placement of each node requires the assistance of two high-altitude personnel, making the placement difficult, labor-intensive, and time-consuming.

[0005] Therefore, how to design a mechanized construction assembly-type iron tower node structure and its construction method, which can simplify the assembly method of existing iron tower connection nodes through node structure design improvement, realize the rapid placement of tower materials, and reduce the difficulty of construction operations and the amount of high-altitude work, is an urgent problem to be solved by those skilled in the art. Summary of the Invention

[0006] In view of this, the present invention proposes a mechanized construction assembly-type iron tower node structure and its construction method, aiming to solve at least one of the above-mentioned technical problems.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: This invention provides a mechanized construction prefabricated tower node structure, comprising: A wing plate and a web plate; one end of the web plate is vertically fixed to the middle of one side surface of the wing plate to form a first T-shaped connector. Wing plate two and web plate two; one end of web plate two is vertically fixed to the middle of one side of wing plate two to form a second T-shaped connector; The first web plate is provided with a first connecting hole for connecting the main material of the iron tower and a second connecting hole for connecting the auxiliary material of the iron tower; the second web plate is provided with a third connecting hole for connecting the main material of the iron tower and a fourth connecting hole for connecting the auxiliary material of the iron tower. The other side of the first wing plate is a positioning support surface one; the other side of the second wing plate is a positioning support surface two; the first wing plate has a positioning through hole one; the second wing plate has a positioning through hole two. The system includes a guide positioning pin and a rope. The guide positioning pin can be connected to the first positioning through hole. One end of the rope can be connected to the guide positioning pin. The other end of the rope can pass through the second positioning through hole and pull the guide positioning pin into the second positioning through hole, so that the first positioning through hole and the second positioning through hole are coaxially connected, and the first positioning support surface abuts against the second positioning support surface.

[0008] This invention discloses a mechanized construction assembly-type tower node structure, which is pre-assembled before the hoisting of tower sections. The web of a first T-shaped connector is installed at the lower end of the main tower member of the upper tower section through a connecting hole one, and connected to one end of the secondary tower member of the upper tower section through a connecting hole two. The web of a second T-shaped connector is installed at the upper end of the main tower member of the lower tower section through a connecting hole three, and connected to one end of the secondary tower member of the lower tower section through a connecting hole four. During the hoisting of the upper tower section to align its lower end with the upper end of the lower tower section, ropes are passed through positioning channels. Pulling the other end of the second hole, the positioning through-hole 1 and the positioning through-hole 2 are aligned and coaxially connected by inserting the guide positioning pin into the second positioning through-hole. The positioning support surface 1 abuts against the positioning support surface 2. The positioning support surface 2 can improve the support strength and stability of the lower tower section on the upper tower section. Under the action of the upper tower section's own weight, the positioning support surface 1 can better fit and adhere tightly to the positioning support surface 2, thereby improving the coaxiality of the positioning through-hole 1 and the positioning through-hole 2, and thus facilitating a faster and smoother connection and assembly of wing plate 1 and wing plate 2. This invention can simplify the assembly method of existing tower connection nodes, realize the rapid placement of tower materials, and reduce the difficulty of construction operations and the amount of high-altitude work.

[0009] As a further improvement to the above technical solution, a fixing hole 1 is provided on the side of the wing plate 1 corresponding to the positioning through hole 1; a fixing hole 2 is provided on the side of the wing plate 2 corresponding to the positioning through hole 2; when the positioning through hole 1 and the positioning through hole 2 are coaxially aligned, the fixing hole 1 and the fixing hole 2 are coaxially aligned.

[0010] The beneficial effects of the above technical solution are: when the tower section is hoisted and assembled, the positioning support surface one fits and abuts against the positioning support surface two, the positioning through hole one and the positioning through hole two are coaxially corresponding under the guidance of the guide positioning pin, and at this time the fixing hole one and the fixing hole two are coaxially corresponding.

[0011] As a further improvement to the above technical solution, a fastener is also included, which can pass through the first fixing hole and the second fixing hole to fasten the first wing plate and the second wing plate.

[0012] The beneficial effects of the above technical solution are: under the guidance of the guide positioning pin, positioning through hole one and positioning through hole two are precisely coaxial, thereby ensuring that fixing hole one and fixing hole two are precisely coaxial. At this time, the fastener can be more smoothly inserted into fixing hole one and fixing hole two for connection and assembly.

[0013] As a further improvement to the above technical solution, a positioning and pressing device is also included, wherein the positioning and pressing device for positioning and pressing the first wing plate is installed on both sides of the second wing plate in opposite directions.

[0014] The beneficial effects of the above technical solution are: the positioning and clamping device installed on both sides of the wing plate can accurately position the wing plate one on the upper surface of the wing plate two and press the wing plate one on the upper surface of the wing plate two, thereby improving the alignment accuracy of the wing plate one and the wing plate two, ensuring that the fasteners can be assembled smoothly, and improving the efficiency of high-altitude operations.

[0015] As a further improvement to the above technical solution, the positioning and pressing device includes a hinge seat, a positioning shaft, and a flipping pressure plate; the hinge seat is fixed to the side end of the second wing plate along its length; the positioning shaft is hinged to the hinge seat and corresponds to the side end of the second wing plate along its length; the centerline of the positioning shaft is arranged along the width direction of the second wing plate and corresponds to the upper surface of the second wing plate; when the first positioning support surface abuts against the second positioning support surface, the positioning shaft can abut against and position the side end of the first wing plate along its length to limit its displacement; one end of the flipping pressure plate is fixed to the positioning shaft, and the other end of the flipping pressure plate can flip and press against the upper surface of the first wing plate to press the first wing plate firmly onto the second wing plate.

[0016] The beneficial effects of the above technical solution are as follows: During the hoisting and assembly of the tower sections, the first fixed wing plate gradually descends and approaches the second wing plate. Through the guiding action of the pulling rope, the upper and lower tower sections can be roughly positioned in space. The guiding action of the guide positioning pin achieves the first fine positioning of the first and second wing plates. As one end of the wing plate descends and contacts the outer circumference of the positioning shaft, it slides down along the outer circumference of the positioning shaft and finally accurately fits onto the second wing plate. The outer circumference of the positioning shaft can accurately position the first wing plate onto the second wing plate to achieve a second fine positioning and prevent the first wing plate from swaying left and right with the upper tower section. The rotating and flipping pressure plate then presses the other end of the pressure plate against the second wing plate, temporarily keeping the first wing plate from leaving the second wing plate and providing stability for the fastener installation.

[0017] As a further improvement to the above technical solution, the connecting hole three is in two sets; the two sets of connecting holes three are arranged at intervals along the width direction parallel to the wing plate two; the connecting hole four is located on one side of the two sets of connecting holes three in opposite directions.

[0018] The beneficial effects of the above technical solution are: the two sets of connecting holes can enable the lower tower section to arrange multiple main tower materials on a main support structure; thus, the second T-shaped connector can be supported by multiple main tower materials, further improving the support stability.

[0019] As a further improvement to the above technical solution, the first set of connecting holes consists of two groups; the two groups of first connecting holes are arranged at intervals along the width direction parallel to the first wing plate; the second connecting hole is located on one side of the opposite direction of the two groups of first connecting holes.

[0020] The beneficial effects of the above technical solution are: the two sets of connection holes enable the upper tower to arrange multiple main tower materials on a main support structure, further improving the support stability.

[0021] As a further improvement to the above technical solution, a node plate is also included; the node plate is provided with connection holes; the node plate is arranged perpendicular to the first wing plate and the first web plate or perpendicular to the second wing plate and the second web plate, and is used to connect the tower sub-materials to the corresponding tower main material.

[0022] The beneficial effects of the above technical solution are as follows: In use, the second connecting hole on web plate one allows the tower sub-materials to be assembled parallel to and against the surface of web plate one; by vertically assembling a node plate on one side of web plate one, the tower sub-materials can be assembled on a plane perpendicular to web plate one through the connecting holes of the node plate, thus providing an installation foundation for assembling tower sub-materials on adjacent sidewalls of the upper tower section. The fourth connecting hole on web plate two allows the tower sub-materials to be assembled parallel to and against the surface of web plate two; by vertically assembling a node plate on one side of web plate two, the tower sub-materials can be assembled on a plane perpendicular to web plate two through the connecting holes of the node plate, thus providing an installation foundation for assembling tower sub-materials on adjacent sidewalls of the lower tower section.

[0023] As a further improvement to the above technical solution, the guide positioning pin includes an anti-detachment end and a positioning pin; the anti-detachment end is connected to the upper part of the positioning pin; one end of the rope can be connected to the lower end of the positioning pin; the positioning pin can be adapted to pass into the positioning through hole one and the positioning through hole two; the lower end of the anti-detachment end can press against the upper surface of the wing plate one.

[0024] The beneficial effects of the above technical solution are: when in use, the positioning pin is pre-inserted into the positioning through hole one, and the lower end of the anti-detachment end presses against the upper plate surface of the wing plate one, so that the positioning pin cannot be pulled out downward from the positioning through hole one.

[0025] Another aspect of the present invention provides a method for constructing a mechanized prefabricated iron tower, using the aforementioned mechanized prefabricated iron tower node structure; comprising the following steps: Step 1: Assemble the upper and lower tower sections; connect the first T-shaped connector to the lower end of each main tower member of the lower tower section; connect the second T-shaped connector to the upper end of each main tower member of the lower tower section. Step 2: Connect the guide positioning pin to the positioning through hole one of the first T-shaped connector; connect one end of the rope to the guide positioning pin; Step 3: Lift the upper tower section and align it above the lower tower section; pass the other end of the rope through the positioning through hole 2 of the corresponding second T-shaped connector; as the upper tower section gradually descends, pull the other end of the rope to guide the guide positioning pin into the corresponding positioning through hole 2, thereby causing the positioning support surface 1 of the first T-shaped connector to abut against the positioning support surface 2 of the corresponding second T-shaped connector, completing the vertical alignment and assembly of the upper and lower tower sections.

[0026] As can be seen from the above technical solution, compared with the prior art, the present invention discloses a mechanized construction assembly-type iron tower node structure and its construction method, which has the following advantages and beneficial effects.

[0027] 1. The mechanized construction assembly-type iron tower node structure of the present invention, through the double-sided pre-connection design of T-shaped connectors, pre-connects the upper main material and diagonal material, and the lower main material and transverse diaphragm material to independent T-shaped angle steels before hoisting, which simplifies high-altitude operations to simply connecting the flanges of the two T-shaped connectors and tightening the bolts, effectively improving construction efficiency, safety and economy.

[0028] 2. The mechanized construction and assembly-type iron tower node structure provided by the present invention uses T-shaped connectors whose web plates can be connected to single or multiple main angle steels. It is suitable for single angle steel, double combined angle steel and four combined angle steel, and can be applied to various voltage levels and various types of iron tower structures.

[0029] 3. The mechanized construction method for prefabricated steel towers provided by this invention breaks down the most time-consuming and dangerous high-altitude drilling operations into multiple ground pre-assembly steps. Specifically, the tower materials and T-shaped connectors are pre-connected on the ground before hoisting. This simplifies the high-altitude work from intricate and complex position adjustments to simple vertical lowering and bolt tightening. Precise positioning of the upper and lower tower sections is achieved by controlling the steel cables passing through the T-shaped connectors and installing positioning and clamping devices. This method significantly reduces the number of personnel working at height, their labor intensity, and exposure time, greatly improving construction safety; simultaneously, it significantly increases tower assembly efficiency. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0031] Figure 1 This invention provides a three-dimensional schematic diagram of a mechanized construction assembly-type iron tower node structure.

[0032] Figure 2 This invention provides a schematic diagram of fastener assembly for a mechanized construction prefabricated tower node structure.

[0033] Figure 3 This invention provides a schematic diagram of the first T-shaped connector and the second T-shaped connector of a mechanized construction prefabricated iron tower node structure, which are assembled and fastened using fasteners.

[0034] Figure 4 This invention provides a schematic diagram of the first T-shaped connector structure of a mechanized construction assembly-type iron tower node structure.

[0035] Figure 5 This invention provides a schematic diagram of the second T-shaped connector structure of a mechanized construction assembly-type iron tower node structure.

[0036] Figure 6 This invention provides a schematic diagram showing the completed assembly of two adjacent tower sections of a mechanized construction prefabricated iron tower.

[0037] Figure 7 The present invention provides a three-dimensional assembly diagram of the connection node between the upper single angle steel and the lower T-shaped double combined angle steel.

[0038] Figure 8 A three-dimensional assembly diagram of the upper and lower T-shaped double-combination angle steel connection node of the present invention.

[0039] Figure 9The present invention provides a three-dimensional assembly diagram of the connection node between the upper single angle steel and the lower cross-shaped double combined angle steel.

[0040] Figure 10 The three-dimensional assembly diagram of the upper and lower cross-shaped double-combination angle steel connection node of the present invention.

[0041] Figure 11 The present invention provides a three-dimensional assembly diagram of the upper cross-shaped double-combination and lower cross-shaped four-combination angle steel connection node.

[0042] Figure 12 The three-dimensional assembly diagram of the upper and lower cross-shaped four-combination angle steel connection node of the present invention.

[0043] Figure 13 Existing tower node structure.

[0044] In the diagram: 1. First T-shaped connector; 11. Wing plate one; 111. Positioning support surface one; 112. Positioning through hole one; 113. Fixing hole one; 12. Web plate one; 121. Connecting hole one; 122. Connecting hole two; 2. Second T-shaped connector; 21. Wing plate two; 211. Positioning support surface two; 212. Positioning through hole two; 213. Fixing hole two; 22. Web plate two; 221. Connecting hole three; 222. Connecting hole four; 3. Guide positioning pin; 31. Anti-detachment end; 32. Positioning pin; 4. Rope; 5. Fastener; 6. Positioning clamping device; 61. Hinge seat; 62. Positioning shaft; 63. Flipping pressure plate; 7. Node plate; 8. Tower; 81. Main tower material; 82. Substructure tower material; 821. Transverse diaphragm tower material; 822. Diagonal tower material. Detailed Implementation

[0045] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0046] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0047] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0048] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0049] According to embodiments of the present invention, such as Figures 1 to 12 As shown, a mechanized construction assembly-type iron tower node structure includes: wing plate 11, web plate 12, wing plate 21, web plate 22, guide positioning pin 3, and rope 4.

[0050] One end of the web plate 12 is vertically fixed to the middle of one side of the flange 11 to form the first T-shaped connector 1.

[0051] One end of the web plate 22 is vertically fixed to the middle of one side of the flange 21 to form the second T-shaped connector 2.

[0052] The web plate 12 is provided with a first connection hole 121 for connecting the main tower member 81 and a second connection hole 122 for connecting the auxiliary tower member 82; the web plate 22 is provided with a third connection hole 221 for connecting the main tower member 81 and a fourth connection hole 222 for connecting the auxiliary tower member 82.

[0053] The other side of the wing plate 11 is the positioning support surface 111; the other side of the wing plate 21 is the positioning support surface 211; the wing plate 11 is provided with a positioning through hole 112; the wing plate 21 is provided with a positioning through hole 212.

[0054] The guide positioning pin 3 can be connected in the positioning through hole 112; one end of the rope 4 can be connected to the guide positioning pin 3; the other end of the rope 4 can pass through the positioning through hole 212 and pull the guide positioning pin 3 into the positioning through hole 212 so that the positioning through hole 112 and the positioning through hole 212 are coaxially connected, and the positioning support surface 111 abuts against the positioning support surface 211.

[0055] This embodiment describes a mechanized construction assembly-type tower node structure, which is pre-assembled before the tower sections are hoisted. The web plate 12 of the first T-shaped connector 1 is installed at the lower end of the main tower member 81 of the upper tower section through connection hole 121, and connected to one end of the auxiliary tower member 82 of the upper tower section through connection hole 122. The web plate 22 of the second T-shaped connector 2 is installed at the upper end of the main tower member 81 of the lower tower section through connection hole 321, and connected to one end of the auxiliary tower member 82 of the lower tower section through connection hole 4222. During the hoisting of the upper tower section to align its lower end with the upper end of the lower tower section, the rope 4 is passed through the positioning through hole 212. Pulling the other end, the positioning through-hole 112 and positioning through-hole 212 are aligned and coaxially connected by the traction guide positioning pin 3 through the positioning through-hole 212. Positioning support surface 111 abuts against positioning support surface 211. Positioning support surface 211 can improve the support strength and stability of the lower tower section on the upper tower section. Under the weight of the upper tower section itself, positioning support surface 111 can better fit and adhere to positioning support surface 211, thereby improving the coaxiality of positioning through-hole 112 and positioning through-hole 212, thus facilitating a faster and smoother connection and assembly of wing plate 11 and wing plate 21. This invention simplifies the assembly method of existing tower connection nodes, enables quick placement of tower materials, and reduces the difficulty of construction operations and the workload of high-altitude operations.

[0056] Specifically, the prefabricated iron tower is constructed by assembling multiple tower sections sequentially along its height. Each tower section 8 includes main tower members 81 and auxiliary tower members 82. The main tower members 81 and auxiliary tower members 82 of the upper tower section and the main tower members 81 and auxiliary tower members 82 of the lower tower section can be quickly assembled using a mechanized prefabricated iron tower node structure. The main tower members 81 are set along the height direction of the iron tower; the auxiliary tower members 82 include horizontal diaphragms 821 and diagonal members 822, used for horizontal and diagonal connections between adjacent main tower members 81 on the left, right, front, and back.

[0057] Specifically, taking a four-column iron tower as an example, when assembling each section of the tower frame 8, four main tower members 81 and eight diagonal tower members 822 need to be installed simultaneously. If assembling the tower sections of each layer of the tower frame 8, two main tower members 81 and two diagonal tower members 822 need to be installed simultaneously. The tower crossbeams 821 are used for horizontal installation to connect two adjacent main tower members 81.

[0058] Specifically, the first T-shaped connector 1 can be welded and fixed to the first wing plate 11 and the second web plate 12 to form the first T-shaped connector 1; the second wing plate 21 and the second web plate 22 can be welded and fixed to form the second T-shaped connector 2. The first T-shaped connector 1 and the second T-shaped connector 2 have the same structure. The first T-shaped connector 1 and the second T-shaped connector 2 can also be integrally cast parts.

[0059] In some embodiments, a fixing hole 113 is provided on the side of the wing plate 11 corresponding to the positioning through hole 112; a fixing hole 213 is provided on the side of the wing plate 21 corresponding to the positioning through hole 212; when the positioning through hole 112 and the positioning through hole 212 are coaxially aligned, the fixing hole 113 and the fixing hole 213 are coaxially aligned.

[0060] During the hoisting and assembly of the tower sections, the positioning support surface 111 fits and abuts against the positioning support surface 211. The positioning through hole 112 and the positioning through hole 212 are coaxially corresponding under the guidance of the guide positioning pin 3. At this time, the fixing hole 113 and the fixing hole 213 are coaxially corresponding.

[0061] In some embodiments, a fastener 5 is also included, which can pass through the fixing hole 113 and the fixing hole 213 to fasten the wing plate 11 and the wing plate 21.

[0062] Under the guidance of the guide pin 3, the positioning through hole 112 and the positioning through hole 212 are precisely coaxial, thereby ensuring that the fixing hole 113 and the fixing hole 213 are precisely coaxial. At this time, the fastener 5 can be more smoothly inserted into the fixing hole 113 and the fixing hole 213 for connection and assembly.

[0063] Specifically, fastener 5 can be a bolt.

[0064] In some embodiments, there are multiple fixing holes 113 and multiple fixing holes 213; the multiple fixing holes 113 are symmetrically distributed on both sides of the radial direction of the positioning through hole 112; the multiple fixing holes 213 are symmetrically distributed on both sides of the radial direction of the positioning through hole 212.

[0065] In some embodiments, a positioning and pressing device 6 is also included, and the two ends of the wing plate 21 in the opposite direction are each equipped with a positioning and pressing device 6 for positioning and pressing the wing plate 11.

[0066] The positioning and clamping device 6 installed on the side of the second wing plate 21 can accurately position the first wing plate 11 on the upper surface of the second wing plate 21 and press the first wing plate 11 on the upper surface of the second wing plate 21, thereby improving the alignment accuracy between the first wing plate 11 and the second wing plate 21 and ensuring that the fasteners can be assembled smoothly, thus improving the efficiency of high-altitude operations.

[0067] In some embodiments, the positioning and pressing device 6 includes a hinge seat 61, a positioning shaft 62, and a flipping pressure plate 63; the hinge seat 61 is fixed to the side end of the second wing plate 21 in the length direction; the positioning shaft 62 is hinged to the hinge seat 61 and corresponds to the side end of the second wing plate 21 in the length direction; the axis of the positioning shaft 62 is arranged along the width direction of the second wing plate 21 and corresponds to the upper surface of the second wing plate 21; when the positioning support surface 111 abuts against the positioning support surface 211, the positioning shaft 62 can abut against the side end of the positioning wing plate 11 in the length direction to limit its displacement; one end of the flipping pressure plate 63 is fixed to the positioning shaft 62, and the other end of the flipping pressure plate 63 can flip and press against the upper surface of the first wing plate 11 to press the first wing plate 11 onto the second wing plate 21.

[0068] During the hoisting and assembly of the tower sections, the fixed wing plate 11 gradually descends and approaches the wing plate 21. Through the guiding action of the pulling rope 4, the upper and lower tower sections are roughly positioned in space. The guiding action of the guide positioning pin 3 achieves the first fine positioning of the wing plate 11 and the wing plate 21. As the side end of the wing plate 11 descends and contacts the outer circumference of the positioning shaft 62, it slides down along the outer circumference of the positioning shaft 62 and finally accurately fits onto the wing plate 21. The outer circumference of the positioning shaft 62 can accurately position the wing plate 11 on the wing plate 21 to achieve a second fine positioning and prevent the wing plate 11 from swaying left and right with the upper tower section. The rotating and flipping pressure plate 63 then presses the other end of the wing plate 11 against the wing plate 21, temporarily keeping the wing plate 11 from leaving the wing plate 21 and providing stability for the fastener installation.

[0069] Specifically, the positioning shaft 62 is a cylindrical shaft with a radius equal to the thickness of wing plate 11 and wing plate 21. Both wing plate 11 and wing plate 21 are rectangular plates. After wing plate 11 and wing plate 21 overlap, the outer peripheral wall of the positioning shaft 62 abuts against one end face of wing plate 11 and wing plate 21 along their length, achieving accurate positioning. The positioning shaft 62 and the end faces of wing plate 11 and wing plate 21 in their corresponding overlapping states are in a tight fit to prevent the flipping pressure plate 63 from disengaging in the locked state. The flipping pressure plate 63 can be flipped and locked onto the upper end face of wing plate 11 by a hammer-driven mechanism to clamp wing plate 11 and wing plate 21.

[0070] In some embodiments, there are two sets of connecting holes 221; the two sets of connecting holes 221 are arranged at intervals along the width direction of the parallel wing plate 21; the connecting hole 222 is located on one side of the two sets of connecting holes 221 in opposite directions.

[0071] The two sets of connecting holes 221 enable the lower tower section to arrange multiple main tower materials 81 on a main support structure; thus, the second T-shaped connector 2 is supported by multiple main tower materials 81, further improving the support stability.

[0072] In some embodiments, there are two sets of connection holes 121; the two sets of connection holes 121 are arranged at intervals along the width direction of the parallel wing plate 11; the second set of connection holes 122 is located on one side of the two sets of connection holes 121 in opposite directions.

[0073] The two sets of connecting holes 121 enable the upper tower to arrange multiple main tower materials 81 on a main support structure, further improving the support stability.

[0074] Specifically, each group of connecting holes 3 221 includes multiple connecting holes 3 221; the multiple connecting holes 3 221 are spaced apart along the height direction of web 2 22. Each group of connecting holes 1 121 includes multiple connecting holes 1 121; the multiple connecting holes 1 121 are spaced apart along the height direction of web 1 12. Both connecting holes 1 121 and connecting holes 3 221 are bolt holes.

[0075] In some embodiments, the system further includes a node plate 7; the node plate 7 has connection holes; the node plate 7 is arranged with vertical wing plate 11 and web plate 12 or vertical wing plate 21 and web plate 22 to connect the tower sub-material 82 to the corresponding tower main material 81.

[0076] In use, the connecting hole 122 on the web plate 12 allows the tower sub-material 82 to be assembled parallel to and against the surface of the web plate 12. By vertically assembling the node plate 7 on one side of the web plate 12, the tower sub-material 82 can be assembled on the plane perpendicular to the web plate 12 through the connecting hole of the node plate 7, thus providing an installation foundation for assembling the tower sub-material 82 on the adjacent side wall of the upper tower section. The connecting hole 222 on the web plate 22 allows the tower sub-material 82 to be assembled parallel to and against the surface of the web plate 22. By vertically assembling the node plate 7 on one side of the web plate 22, the tower sub-material 82 can be assembled on the plane perpendicular to the web plate 22 through the connecting hole of the node plate 7, thus providing an installation foundation for assembling the tower sub-material 82 on the adjacent side wall of the lower tower section.

[0077] Specifically, during the assembly of each tower section 8, the bottom of the tower 8 requires four first T-shaped connectors 1 arranged in a rectangular matrix, and the top of the tower 8 requires four second T-shaped connectors 2 arranged in a rectangular matrix. The four first T-shaped connectors 1 and the four second T-shaped connectors 2 correspond one-to-one. The lower and upper ends of the four main tower members 81 are fixedly connected one-to-one with each other by bolts to the connection holes 121 of the web plates 12 of the four first T-shaped connectors 1 and the connection holes 221 of the web plates 22 of the four second T-shaped connectors 2. Two iron tower diagonal members 822 are arranged crosswise on each of the four sides of the tower 8. The lower ends of the eight iron tower diagonal members 822 are fixedly connected to the corresponding web plate 12 connection hole 122 by bolts or to the lower end of the corresponding iron tower main member 81 by gusset plate 7 and bolts. The upper ends of the eight iron tower diagonal members 822 are fixedly connected to the corresponding web plate 222 connection hole 422 by bolts or to the upper end of the corresponding iron tower main member 81 by gusset plate 7 and bolts. The iron tower transverse diaphragm 82 is horizontally arranged and its two ends are fixedly connected to the web plate 12 of the two adjacent first T-shaped connectors 1 or the web plate 22 of the two adjacent second T-shaped connectors 2 by bolts.

[0078] Specifically, the main tower material 81 of the upper tower section and the corresponding main tower material 81 of the lower tower section are set on a straight line.

[0079] In some embodiments, the guide positioning pin 3 includes an anti-detachment end 31 and a positioning pin 32; the anti-detachment end 31 is connected to the upper part of the positioning pin 32; one end of the rope 4 can be connected to the lower end of the positioning pin 32; the positioning pin 32 can be adapted to pass into the positioning through hole 112 and the positioning through hole 212; the lower end of the anti-detachment end 31 can press against the upper surface of the wing plate 11.

[0080] In use, the positioning pin 32 is pre-inserted into the positioning through hole 112, and the lower end of the anti-detachment end 31 presses against the upper surface of the wing plate 11 so that the positioning pin 32 cannot come out downward from the positioning through hole 112.

[0081] In some embodiments, the guide positioning pin 3 is detachably inserted into the positioning through hole 112, the anti-detachment end 31 is a nut, and the upper end of the positioning pin 32 is detachably screwed onto the anti-detachment end 31, facilitating the removal of the guide positioning pin 3. The positioning pin 32 can be adapted to pass through the positioning through hole 112 and the positioning through hole 212 to improve the guiding positioning accuracy. The rope 4 is detachably connected to the lower end of the positioning pin 32.

[0082] Specifically, the lower end of the positioning pin 32 has a hole or hook; one end of the rope 4 is threaded through the hole or hook at the lower end of the positioning pin 32.

[0083] In some embodiments, the lower part of the positioning pin 32 has an external thread, and the rope 4 is detachably passed through the hole at the lower end of the positioning pin 32. After the rope 4 is separated from the lower end of the positioning pin 32, the fastening nut can be threaded onto the lower end of the positioning pin 32, thereby fastening the first wing plate 11 and the second wing plate 21 together.

[0084] Specifically, the anti-detachment end 31 is welded and fixed to the upper surface of the wing plate 11; the fixing hole 113 is located on one side of the anti-detachment end 31.

[0085] In use, the positioning pin 32 is guided by the rope 4 through the positioning through hole 112 and the positioning through hole 212. The rope 4 is then removed, and a fastening nut is installed at the lower end of the positioning pin 32, allowing for quick and easy fastening of the wing plate 11 and the wing plate 21. The rope 4 can be made of steel cable; the lower end of the positioning pin 32 has a reduced diameter design to allow the rope 4 to pass smoothly through the positioning through hole 212 when it is threaded onto the hole or hook at the lower end of the positioning pin 32.

[0086] Another embodiment of the present invention provides a mechanized construction method for assembled iron towers, using a mechanized construction method for assembled iron tower node structures; including the following steps: Step 1: Assemble the upper tower section and the lower tower section; connect the first T-shaped connector 1 to the lower end of each main tower member 81 of the lower tower section; connect the second T-shaped connector 2 to the upper end of each main tower member 81 of the lower tower section. Step 2: Connect the guide positioning pin 3 to the positioning through hole 112 of the first T-shaped connector 1; connect one end of the rope 4 to the guide positioning pin 3; Step 3: Lift the upper tower section and align it above the lower tower section; pass the other end of rope 4 through the positioning through hole 212 of the corresponding second T-shaped connector 2; as the upper tower section gradually descends, pull the other end of rope 4 to guide the guide positioning pin 3 into the corresponding positioning through hole 212, thereby causing the positioning support surface 111 of the first T-shaped connector 1 to abut against the positioning support surface 211 of the corresponding second T-shaped connector 2, completing the upper and lower tower section alignment assembly.

[0087] In some embodiments, the method further includes step four: rotating the flipping pressure plate 63 so that its other end presses against the upper surface of the first wing plate 11 to press the first wing plate 11 onto the second wing plate 21. At this time, the outer peripheral wall of the positioning shaft 62 abuts against and is positioned at the side end of the first wing plate 11 in the length direction to limit its displacement, thereby making the first fixing hole 113 coaxially corresponding with the corresponding second fixing hole 213, ensuring that the bolt is smoothly assembled in the corresponding first fixing hole 113 and second fixing hole 213.

[0088] Specifically, the outer peripheral wall of the positioning shaft 62 is arranged close to the side end of the wing plate 21 along its length. The flipping pressure plate 63 can be driven to rotate by a tool (hammer). When the other end of the flipping pressure plate 63 presses against the upper surface of the wing plate 11, the outer peripheral wall of the positioning shaft 62 is squeezed tightly against the side wall surface of the wing plate 11 along its length.

[0089] In some embodiments, in step three: the lower part of the positioning pin 32 passes through the positioning through hole 212 and extends to the lower part of the wing plate 21, and is fastened to the threaded section of the lower part of the guide positioning pin 3 by fastening bolts, so as to fasten the wing plate 11 and the wing plate 21 together.

[0090] Specifically, the main tower material 81, the tower crossbeam 821, and the tower diagonal material 822 used in this invention are all triangular steel; in addition to using single angle steel connection, the tower constructed by this invention can also be used to connect "T"-shaped double-combined angle steel and "+"-shaped double-combined angle steel.

[0091] like Figure 7 As shown, the main tower member 81 of the upper tower section is made of single angle steel, which is bolted to the web plate 12 of the first T-shaped connector 1. The main tower member 81 of the lower tower section is composed of two single angle steels combined into a T-shaped double angle steel. The two opposite legs of the two single angle steels are bolted to the web plate 22 of the second T-shaped connector 2. The angle steel of the main tower member 81 is connected to the angle steel connecting leg of the diagonal member 822 on the side of the tower section through gusset plates and bolts.

[0092] like Figure 8 As shown, the main tower member 81 of the upper tower section is composed of two single angle steels combined into a T-shaped double angle steel, which is bolted to the web plate 12 of the first T-shaped connector 1. The main tower member 81 of the lower tower section is also composed of two single angle steels combined into a T-shaped double angle steel, with the two legs of the angle steel bolted to the web plate 22 of the second T-shaped connector 2. The angle steel of the main tower member 81 is connected to the angle steel connecting leg of the diagonal member 822 on the side of the tower section through a node plate and bolts.

[0093] like Figure 9 As shown, the main tower member 81 of the upper tower section is made of single angle steel, which is bolted to the web plate 12 of the first T-shaped connector 1. The main tower member 81 of the lower tower section is composed of two single angle steels combined into a cross-shaped double angle steel, and the two legs of the angle steel are bolted to the web plate 22 of the second T-shaped connector 2. The angle steel of the main tower member 81 is connected to the angle steel connecting leg of the diagonal member 822 on the side of the tower section through gusset plates and bolts.

[0094] like Figure 10As shown, the main tower member 81 of the upper tower section is composed of two single angle steels combined into a cross-shaped double-combined angle steel, which is bolted to the web plate 12 of the first T-shaped connector 1. The main tower member 81 of the lower tower section is also composed of two single angle steels combined into a cross-shaped double-combined angle steel, with the two legs of the angle steel bolted to the web plate 22 of the second T-shaped connector 2. The angle steel of the main tower member 81 is connected to the angle steel connecting legs of the diagonal members 822 on the side of the tower section through gusset plates and bolts.

[0095] like Figure 11 As shown, the main tower member 81 of the upper tower section is composed of two single angle steels combined into a cross-shaped double-combined angle steel, which is bolted to the web plate 12 of the first T-shaped connector 1. The main tower member 81 of the lower tower section is composed of four single angle steels combined into a cross-shaped four-combined angle steel, with the two legs of the angle steel respectively bolted to the web plate 22 of the second T-shaped connector 2. The angle steel of the main tower member 81 is connected to the angle steel connecting legs of the diagonal members 822 on the side of the tower section through gusset plates and bolts.

[0096] like Figure 12 As shown, the main tower member 81 of the upper tower section is composed of four single angle steels combined into a cross-shaped four-combination angle steel, which is bolted to the web plate 12 of the first T-shaped connector 1. The main tower member 81 of the lower tower section is also composed of four single angle steels combined into a cross-shaped four-combination angle steel, with the two legs of the angle steel respectively bolted to the web plate 22 of the second T-shaped connector 2. The angle steel of the main tower member 81 is connected to the angle steel connecting legs of the diagonal members 822 on the side of the tower section through gusset plates and bolts.

[0097] Another embodiment of the present invention also provides a design method for a tower node structure, including the following: The design value of the bearing capacity of the bolts connected to the web of the T-shaped angle steel is calculated using the following formula: .

[0098] in —Design tensile bearing capacity (N) for each bolt; —Effective diameter of the bolt (mm); —Design value of bolt shear strength (N / mm) 2 ).

[0099] The web of the T-shaped angle steel The thickness is determined by the following formula: .

[0100] Where N is the tensile force acting on the T-shaped angle steel; —Minimum tensile strength (N) of T-shaped angle steel; —Partial factor for material resistance of T-shaped angle steel; —Effective width of the web of the T-shaped angle steel (mm); —Thickness of web of T-shaped angle steel (mm).

[0101] The design value of the bearing capacity of the bolts connecting the flange of the T-shaped angle steel is calculated according to the following formula: .

[0102] in —Design value of tensile bearing capacity (N) for each bolt; —Effective diameter of the bolt (mm); —Design value of tensile strength of bolt (N / mm) 2 ).

[0103] The T-shaped angle steel flange The thickness is determined by the following formula: .

[0104] Where F is the ultimate bearing capacity of the steel plate (N); P is the preload of a high-strength bolt (N); m is the number of high-strength bolts in the connected part; and a is the distance from the edge of the T-shaped angle steel flange to the center of the bolt (mm).

[0105] in, ; ; — Yield strength of T-shaped angle steel flange plate (N / mm) 2 ); —Distance from the center line of the T-shaped angle steel to the center of the bolt (mm); —Thickness (mm) of the web of the T-shaped angle steel; —Thickness of the flange of the T-shaped angle steel (mm); —T-shaped angle steel transition radius (mm).

[0106] The mechanized construction assembly-type tower node structure design method provided by this invention can effectively calculate the thickness and width of the web and wing plates of the T-shaped angle steel used in the connection structure, the specifications and quantity of the T-shaped angle steel wing plate connecting bolts, and the connecting bolts between the T-shaped angle steel and the main diagonal angle steel of the tower, so as to conveniently, efficiently and accurately obtain the specification parameters of the node structure under different forces.

[0107] It should be noted that the alignment of the first T-shaped connector 1 and the second T-shaped connector 2 of the present invention is achieved by limiting their alignment through horizontal limbs of the same size (i.e., wing plate 11 and wing plate 21). Before connecting the main tower member 81 and the transverse diaphragm 821 of the lower tower section through the second T-shaped connector 2, the process further includes: prefabricating the upper main member, lower main member, upper diagonal member, transverse diaphragm, and the first T-shaped connector 1 and the second T-shaped connector 2 in the factory, and drilling holes at corresponding positions. During construction, each tower section can be assembled on the ground, hoisted to the tower position, and installed as a whole. After installation, as shown... Figure 6 As shown. The two sides of the web of the tower node structure of the present invention can be connected to single or multiple main angle steel members, and are suitable for single angle steel, double combined angle steel and four combined angle steel. Before hoisting, the tower material and T-shaped connectors are pre-connected on the ground. During high-altitude operations, the upper and lower tower sections are positioned by pulling the steel cable connected to the positioning pin 32, and the left and right movement of the tower sections is restricted by the positioning and clamping device 6. The first T-shaped connector 1 and the second T-shaped connector 2 at the corresponding positions are connected by bolts.

[0108] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0109] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A mechanized construction assembly-type iron tower node structure, characterized in that, include: Wing plate one (11) and web plate one (12); one end of the web plate one (12) is vertically fixed to the middle of one side of the wing plate one (11) to form a first T-shaped connector (1); Wing plate two (21) and web plate two (22); one end of the web plate two (22) is vertically fixed to the middle of one side of the wing plate two (21) to form a second T-shaped connector (2); The web plate one (12) is provided with a first connection hole (121) for connecting the main material (81) of the iron tower and a second connection hole (122) for connecting the auxiliary material (82) of the iron tower; the web plate two (22) is provided with a third connection hole (221) for connecting the main material (81) of the iron tower and a fourth connection hole (222) for connecting the auxiliary material (82) of the iron tower. The other side of the first wing plate (11) is a positioning support surface (111); the other side of the second wing plate (21) is a positioning support surface (211); the first wing plate (11) is provided with a positioning through hole (112); the second wing plate (21) is provided with a positioning through hole (212). A guide positioning pin (3) and a rope (4) are provided. The guide positioning pin (3) can be connected to the first positioning through hole (112). One end of the rope (4) can be connected to the guide positioning pin (3). The other end of the rope (4) can pass through the second positioning through hole (212) and pull the guide positioning pin (3) into the second positioning through hole (212) so that the first positioning through hole (112) and the second positioning through hole (212) are coaxially connected and the first positioning support surface (111) abuts against the second positioning support surface (211).

2. The mechanized construction assembly-type iron tower node structure according to claim 1, characterized in that, A fixing hole 1 (113) is provided on the side of the wing plate 1 (11) corresponding to the positioning through hole 1 (112); a fixing hole 2 (213) is provided on the side of the wing plate 2 (21) corresponding to the positioning through hole 2 (212); when the positioning through hole 1 (112) and the positioning through hole 2 (212) are coaxially corresponding, the fixing hole 1 (113) and the fixing hole 2 (213) are coaxially corresponding.

3. The mechanized construction assembly-type iron tower node structure according to claim 2, characterized in that, It also includes a fastener (5) that can pass through the first fixing hole (113) and the second fixing hole (213) to fasten the first wing plate (11) and the second wing plate (21).

4. The mechanized construction assembly-type iron tower node structure according to claim 1, characterized in that, It also includes a positioning and pressing device (6), and the two ends of the wing plate two (21) in opposite directions are equipped with the positioning and pressing device (6) for positioning and pressing the wing plate one (11).

5. The mechanized construction assembly-type iron tower node structure according to claim 4, characterized in that, The positioning and pressing device (6) includes a hinge seat (61), a positioning shaft (62), and a flipping pressure plate (63); the hinge seat (61) is fixed to the side end of the second wing plate (21) in the length direction; the positioning shaft (62) is hinged to the hinge seat (61) and corresponds to the side end of the second wing plate (21) in the length direction; the center line of the positioning shaft (62) is arranged along the width direction of the second wing plate (21) and corresponds to the upper surface of the second wing plate (21); when the first positioning support surface (111) abuts against the second positioning support surface (211), the positioning shaft (62) can abut against the side end of the first wing plate (11) in the length direction to limit its displacement; one end of the flipping pressure plate (63) is fixed to the positioning shaft (62), and the other end of the flipping pressure plate (63) can flip and press against the upper surface of the first wing plate (11) to press the first wing plate (11) against the second wing plate (21).

6. The mechanized construction assembly-type iron tower node structure according to claim 1, characterized in that, The connecting hole three (221) consists of two sets; the two sets of connecting holes three (221) are arranged at intervals along the width direction parallel to the second wing plate (21); the connecting hole four (222) is located on one side of the two sets of connecting holes three (221) in opposite directions.

7. The mechanized construction assembly-type iron tower node structure according to claim 6, characterized in that, The first set of connecting holes (121) consists of two groups; the two groups of connecting holes (121) are arranged at intervals along the width direction parallel to the first wing plate (11); the second set of connecting holes (122) is located on one side of the two groups of connecting holes (121) in opposite directions.

8. The mechanized construction assembly-type iron tower node structure according to claim 7, characterized in that, It also includes a node plate (7); the node plate (7) has a connection hole; the node plate (7) is arranged perpendicular to the first wing plate (11) and the first web plate (12) or perpendicular to the second wing plate (21) and the second web plate (22), and is used to connect the iron tower sub-material (82) with the corresponding iron tower main material (81).

9. The mechanized construction assembly-type iron tower node structure according to claim 1, characterized in that, The guide positioning pin (3) includes an anti-detachment end (31) and a positioning pin (32); the anti-detachment end (31) is connected to the upper part of the positioning pin (32); one end of the rope (4) can be connected to the lower end of the positioning pin (32); the positioning pin (32) can be adapted to pass into the positioning through hole one (112) and the positioning through hole two (212); the lower end of the anti-detachment end (31) can press against the upper surface of the wing plate one (11).

10. A mechanized construction method for assembled iron towers, characterized in that, Using the mechanized construction assembly-type iron tower node structure according to any one of claims 1-9; comprising the following steps: Step 1: Assemble the upper tower and the lower tower; connect the first T-shaped connector (1) to the lower end of each main tower member (81) of the lower tower; connect the second T-shaped connector (2) to the upper end of each main tower member (81) of the lower tower. Step 2: Connect the guide positioning pin (3) to the positioning through hole (112) of the first T-shaped connector (1); connect one end of the rope (4) to the guide positioning pin (3); Step 3: Lift the upper tower section and align it with the upper tower section above the lower tower section; pass the other end of the rope (4) through the positioning through hole (212) of the corresponding second T-shaped connector (2); as the upper tower section gradually descends, pull the other end of the rope (4) to guide the positioning pin (3) into the corresponding positioning through hole (212), thereby making the positioning support surface (111) of the first T-shaped connector (1) abut against the positioning support surface (211) of the corresponding second T-shaped connector (2), thus completing the upper and lower tower section alignment assembly.

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