RU2815701C1 - Method of mounting sections of single-column inclined pylon of cable-stayed bridge and one-sided self-lifting device for mounting sections of steel pylon - Google Patents

Abstract

FIELD: construction.

SUBSTANCE: invention relates to devices for erection of a steel pylon of a bridge. Single-sided self-lifting device for mounting a steel pylon includes a self-lifting system, as well as a lifting system, which is fixed on the self-lifting system, and a lifting power system, which is installed on lifting system. Self-lifting system includes installed in the form of embedded on the surface of one of the pylon sides support shoes, rail guides mounted on support shoes and lifting units attached by reverse gearing to rail guides. Lifting system is secured on said lifting units; at that, its lifting boom is extended to the side opposite to the fixation surface of the said jacking system. Lifting power system includes power assemblies mounted on lifting boom and used for lifting and horizontal movement. Also disclosed is a method of mounting a single-column inclined pylon of a cable-stayed bridge, in which a one-sided self-lifting device is used for mounting.

EFFECT: simplified pylon sections assembly, higher work safety.

24 cl, 8 dwg

Description

Technical area

[0001] This application relates to the field of bridge girder construction, namely to a single-sided self-climbing formwork for mounting a steel pylon and its use on a single-column inclined pylon of a Byte Bridge.

Previous State of the Art

[0002] Controlling the joining of inclined pylon sections of a cable-stayed bridge is an extremely important area of work. If there is a significant deviation of the axis line when joining sections of the inclined pylon of a cable-stayed bridge from the original design center line as construction progresses, the internal stress of the structure will exceed the design value; this may trigger an accident at a construction site.

[0003] At the present stage, lifting and installation technology using a tower crane is used to control the joining of sections of a single-column inclined pylon of a cable-stayed bridge. Using existing technologies, it is possible to achieve accurate control of the displacement of the center line of the joining of pylon sections in the range of 1/3000 of the pylon height.

[0004] The main problem of joining sections of an inclined pylon when controlling the lifting and installation method using a tower crane is the complexity of the work. Lifting and installation with a tower crane under wind load leads to swaying of the pylon, which increases the likelihood of the formation of an error in pylon tilt when controlling the joining of sections using a guide electric lift. Since the use of a tower crane requires its fixation on already installed sections of the pylon, this causes deformation of the installed sections of the pylon under the influence of horizontal forces, which further increases the error during docking. When, after temporarily joining a section, it is necessary to adjust the position of the consoles and jacks so that the upper mouth meets the requirements, at this point it is extremely difficult to control the centerline displacement within 1/3000 of the pylon height. Under normal conditions, when lifting and installing using a tower crane, controlling the centerline displacement when joining a pylon section within 1/3000 of the pylon height is extremely difficult. And given that the height of some inclined pylons exceeds 150 m, it is practically impossible to control displacement in the range of 1/3000 of the pylon height, that is, in the range of 50 mm.

[0005] In addition, the work of lifting and installing large sections of a steel pylon refers to construction and installation work at high heights, especially in some regions with difficult geological conditions, where the characteristics of the base do not meet the requirements for high-rise installation work. The need to construct an inclined pylon for a cable-stayed bridge in such areas has a serious impact on safety during the lifting and installation of pylon sections and creates significant risks of collapse and other emergency incidents.

Contents of the invention

[0006] The purpose of this application is to at least partially eliminate the shortcomings of the prior art and provide a self-climbing formwork that is convenient and highly efficient for construction work, as well as the use of this formwork on a single-column inclined pylon of a cable-stayed bridge.

[0007] In order to achieve the above technical objective, the following technical solution is proposed within the framework of this application:

[0008] First, this application presents a single-sided self-climbing form for mounting a steel pylon, which includes a self-climbing system, as well as a lifting system that is fixed on said self-climbing system, and a lifting power system that is installed on said lifting system; including,

[0009] The said self-lifting system includes support shoes installed in the form of embedded parts in the surface of one of the sides of the structure, rail guides mounted on the support shoes and lifting units attached by reverse engagement to the rail guides;

[0010] Said lifting system is attached to said lifting units, with its lifting arm extended in the direction opposite to the fixation surface of said self-lifting system;

[0011] Said lifting power system includes power assemblies mounted on said lifting boom for performing lifting and horizontal movement operations.

[0012] Compared with the prior art, this application has the following advantages:

[0013] (1) The self-climbing formwork of this application is characterized by low dead weight, a close location of its own center of gravity to the center of gravity of the pylon, a small distance between the control points of the mounted section, and ease of handling, which makes it easier to control the alignment of the pylon;

[0014] (2) The self-climbing formwork of this application uses the principle of self-climbing formwork supported by a pylon structure, which does not require a separate foundation or supports resting on the ground, which can reduce the height of the self-climbing formwork, eliminating the problem of lifting and installation at high heights, guarantee high safety and high efficiency of construction work;

[0015] (3) The design of the self-climbing structure on one side of the pylon used in the self-climbing formwork of this application makes it possible to adapt the self-climbing system to pylons of different shapes and meets the requirements for the construction of vertical pylons, inclined pylons and even pylons with variable cross-sections;

[0016] (4) The self-climbing design on one side of the pylon used in the self-climbing formwork of this application minimizes the possibility of the formwork interfering with other structural elements on the surface of the pylon and allows parallel lifting and installation work, welding work, painting and other types of construction work on the pylon.

[0017] (5) Single-sided rail guides used in self-climbing formwork according to this application are characterized by a small number of embedded parts and less work required for their subsequent dismantling and restoration of the surface of the steel pylon.

[0018] (6) The lifting and installation carried out by the self-climbing formwork of this application only includes the processes of vertical lifting and horizontal movement, the lifting and installation work does not involve changes in the boom radius, and the control of the lifting and installation process is low in complexity.

Description of drawings

[0019] In FIG. 1 shows a front view of a single-sided self-climbing formwork for mounting a steel pylon according to this application.

[0020] In FIG. 2 shows a left view of a one-sided self-climbing formwork for mounting a steel pylon according to this application.

[0021] In FIG. 3 shows a right view of a one-sided self-climbing formwork for mounting a steel pylon according to this application.

[0022] In FIG. 4 shows a front view of a single-sided self-climbing formwork system for installing a steel pylon according to this application.

[0023] In FIG. Figure 5 shows a diagram of the design of a jack holder for a self-climbing frame of a self-climbing system of one-way self-climbing formwork for mounting a steel pylon according to this application.

[0024] In FIG. 6 shows a cross-sectional view of a jacking holder of a self-climbing frame of a self-climbing single-sided self-climbing formwork system for mounting a steel pylon according to this application.

[0025] In FIG. 7 shows a diagram of the design of the hydraulic cylinder holder of the self-climbing frame of the self-climbing system of one-sided self-climbing formwork for the installation of a steel pylon according to this application.

[0026] In FIG. Figure 8 shows an installation diagram when using one-sided self-climbing formwork to install a steel pylon on a single-column inclined pylon of a cable-stayed bridge.

Specific implementation methods

[0027] Further detailed description of this application is provided below in conjunction with the drawings and example implementations.

[0028] This application may be used in cable-stayed bridge projects with antisymmetrical pylons and steel box girders. The steel pylon for this project has a wide cross-section at the base and a narrow cross-section at the top. Before lifting and installation begins, the structure of the steel pylon is divided into 13 lifting and installation sections, each of which weighs up to 40 tons, and the height is up to 6 m. A one-sided self-climbing formwork is installed on the pylon for the installation of a steel pylon with a lifting capacity of 40 tons for the installation of pylon sections.

[0029] I. Single-sided self-climbing formwork for mounting a steel pylon

[0030] As shown in FIG. 1-4, this application presents a one-way self-climbing form for mounting a steel pylon, which includes a self-climbing system 21, as well as a lifting system that is fixed on said self-climbing system 21, and a lifting power system that is installed on said lifting system; including,

[0031] The mentioned self-climbing system 21 includes support shoes 211 installed in the form of mortgages into the surface of one of the sides of the structure, rail guides 212 mounted on the support shoes 211 and lifting units 213 attached by reverse engagement to the rail guides 212;

[0032] Said lifting system is attached to said lifting units 213, with its lifting arm 2221a extended in the direction opposite to the fixing surface of said self-lifting system 21;

[0033] Said lifting power system includes power assemblies mounted on said lifting boom 2221a used to perform lifting and horizontal movement operations.

[0034] Further, said lifting system includes a jack-up frame 221 connected to said jack-up system 21 by bolts, and a main lifting beam 222 mounted on top of said jack-up frame 221, mounted on top of said main lifting beam 222 a lifting crane trolley 223 and front support legs 224, which rest against the lower part of the mentioned main lifting beam 222 and are fixed with an anchor on the side of the structure opposite to the fixation surface of the mentioned self-lifting system 21.

[0035] As shown in FIG. 1 and Fig. 2, said self-climbing frame 221 is a through-truss structure that includes two sets of first vertical posts directly bolted to said self-climbing system 21, and a set of second vertical posts directly connected to the lower ends of said first vertical posts. struts and forming an inverted triangle, and also includes a group of jack-up frame braces that are connected to said inverted triangle and upwardly extend the upper support surface of the self-climb frame 221, wherein the apex of said group of jack-up frame braces forms the apex of the base of the upper support surface of the jack-up frame 221 frames 221; a lower connection socket 2212 for mounting the support socket located next to said top on the side 1 of the steel pylon, and a lower connection socket 2211 for installing the rotary support located at a certain distance from the side 1 of the steel pylon. In the process of lifting the entire unit, the main lifting beam 222 must be kept in a horizontal position, this is especially important when passing the points of change in curvature of the surface of the steel pylon 1. In this application, a rotary support is installed between the main lifting beam 222 and the jack-up frame 221, which holds the main lifting beam 222 in a horizontal state. When the main lifting beam 222 is rotated at a small angle relative to the upper support surface of the jack-up frame 221 at the pivot support location, the position of the main beam is adjusted by adding or reducing the sealing shims in the thrust seat, that is, adjusting the mounting angle between the jack-up frame 221 and the main lifting beam 222. It is preferable that the structural members of the jack-up frame 221 be of a box-type structure and of varying cross-sectional sizes. Given the limitations associated with transportation and lifting, modular design has been adopted for the elements used in the construction of the self-climbing frame 221; The module nodes are connected using flanges.

[0036] The main lifting beam 222 includes a pair of parallel main longitudinal beams 2221 and two end cross beams 2227, which are connected at right angles to the main longitudinal beams 2221; On the bottom surface of said main longitudinal beams 2221, from the end of the connection with the jack-up frame to the end of the lifting boom, an upper coupling socket of the rotating mount 2222, an upper connecting socket of the thrust socket 2223 and leveling rail guides 2224 are sequentially located. the rotary support 2211 of the self-climbing frame 221 after being bolted together form a rotary support. After arranging sealing gaskets as needed between said upper connection seat of the support seat 2223 and the lower connection seat of the support seat 2212 of said jack-up frame 221, a support seat is formed. The pivot support and support seat are used to limit the mounting angle between the main lifting beam 222 and the jack-up frame 221. Further, on the upper surface of the main longitudinal beam 2221, a reverse engagement rail 2225 is installed, which is used to horizontally move the lifting crane trolley 223 along this main lifting beam 222. To avoid any interference in the lifting process of the structure to be lifted, the width D4 of said cross beam 2227 is larger than the lateral width of the structure to be lifted. In this embodiment, the width D4 of said cross beam 2227 must be greater than the cross-sectional width of the base of the steel pylon 1. Said main load-lifting beam 222 is the main load-bearing structure of said one-sided self-climbing form for mounting the steel pylon. It is preferable, depending on the magnitude of the stress during lifting and the magnitude of the stress during self-lifting of the unit, to use box-section beam structures with different cross-sectional sizes, and to provide longitudinal and transverse stiffeners inside such structures. To ensure convenient transportation, a flange connection is used to connect the main longitudinal beam 2021 with the cross beam 2227.

[0037] The lifting crane trolley 223 includes an undercarriage 2231 transmitting power output from the hoist winch 23 to operate the lifting hook 2234, as well as a main trolley beam 2232 mounted perpendicular to the main longitudinal beam 2221, and crane trolley braces 2233. connecting said main beam of the crane trolley 2232 with the main longitudinal beam 2221. The mentioned undercarriage 2231 is mounted on the main beam of the crane trolley 2232, its structure includes a fixed pulley block 2231. A steel rope is pulled from a winch 23, which is located in the center of the two lateral ones mentioned crane trolley braces 2233, individually wrapped around the pulleys of the trolley 2231; a double winding and lifting power structure is formed, used to control the raising and lowering of the lifting hook 2234, as well as to accurately adjust the position of the next section of the steel pylon 12 when performing the operation of joining the pylon sections. Further, the main beam of the crane trolley 2232 and the braces of the crane trolley and 2233 form a portal lift structure in which box-section beam elements with different section sizes are used as each structural member. Mounted on said main beam of the crane trolley 2232 is a lateral movement hydraulic cylinder 2235, by which said undercarriage 2231 is moved laterally along said main beam of the crane trolley 2232 to achieve a precise lifting position before the vertical lifting of the pylon section begins. Further, the base of said crane trolley brace 2233 is re-engaged with a guide rail 2225 located on said main longitudinal beam 2221; Driven by the longitudinal movement hydraulic cylinder 2226, said lifting crane trolley 223 assembly is longitudinally moved along said main longitudinal beam 2221. To ensure the safety of horizontal movement, the ends of the two said main longitudinal beams 2221 are equipped with kick shoes.

[0038] As shown in FIG. 1 and Fig. 3, said front support leg 224 includes a pair of upper support legs 2241 that are reverse-engaged on said alignment rail 2224 of the main longitudinal beam 2221, a lower support leg anchor assembly 2242 that is pivotally connected to the upper legs of the support leg 2241, and anchored to the surface of the steel pylon 1, and a hydraulic cylinder of the support leg 2243, which moves said front support leg 224 in a horizontal direction along the leveling rail 2224. In particular, the length of said rail guide 2224 is sufficient for the front support 224 to assist the said jack-up frame 221 to support the main load-lifting beam 222, it depends on the variation range of the cross-sectional size of the steel pylon. For example, in this embodiment, the cross-section is at its largest dimension at the base of the pylon 1, and the location of the distal end of the leveling rail 2224 relative to the jack-up frame 221 allows mounting of the bottom section of the steel pylon 1. The cross-section is at its minimum dimension at the top of the pylon 1, and The location of the end of the leveling rail 2224 closest to the jack-up frame 221 allows for the installation of the upper section of the steel pylon 1. The lower end of the said front support leg 224 must be anchored to the surface of the steel pylon 1 by means of the support leg support shoe, using the support leg cross beam The upper support leg 2241 is connected to the lower support leg socket, which is anchored directly to the surface of the steel pylon 1. In an optimal example of implementation, a lower support leg post is installed between the said lower support leg socket and the support leg cross beam, which can be used to adjust the error installation height between the cross beam of the support foot and the lower seat of the support foot. Said support arm cross beam, lower support arm socket, and lower support arm leg together form a lower support arm lower anchor assembly 2242. In the process of lifting a steel pylon section by said lifting system, following the jack-up system 21, a fixed connection of said lower support arm anchor assembly 2242 is made on the surface of the section. The steel pylon must be temporarily unlocked. After locking the lift height, the nearest adjacent support shoe must be used to secure said lower anchor assembly of the support leg 2242. Further, a hydraulic cylinder of the support arm 2243 is mounted on the upper end of the upper vertical leg of the support arm 2241, which is used to horizontally move the front support arm 224 on the leveling rail 2224 along the main longitudinal beam 2221 and then adapt the installation height of the front support arm 224 to level the main beam 222 to provide support for the jack-up frame 221 and to keep the main lift beam 222 horizontal.

[0039] Summarizing the above, the structural elements included in the one-way self-climbing formwork for mounting a steel pylon according to this application have the following functionality:

[0040] 1. Self-climbing frame 221: with the help of pre-installed rail lifting guides 212 on one side of the steel pylon section, the self-climbing frame 221, due to the pushing action of the hydraulic cylinder and periodic locking by extending and retracting the pins, self-climbs along the rail guides 212;

[0041] 2. Main lifting beam 222: connects various units, takes the corresponding load during lifting and installation and transfers it to the jack-up frame 221 and front support legs 224.

[0042] 3. Lifting crane trolley 223: location of lifting equipment; due to the installation of bi-directional hydraulic cylinders, it is capable of moving in four directions and performing lifting and precise positioning of the pylon section;

[0043] 4. Front support leg 224: used to fix the self-climbing formwork and provide support when lifting and installing the pylon section; When performing a self-lifting operation, the support function of the front support leg 224 is absent.

[0044] Below is a detailed description of the design and functionality of the mentioned self-lifting system 21.

[0045] II. Self-lifting system 21 and lifting and lowering method

[0046] As shown in FIG. 4, the mentioned self-climbing system 21 includes support shoes 211 installed in the form of mortgages into the surface of the structure, rail guides 212 mounted on the support shoes 211 and lifting units 213 attached by reverse engagement to the rail guides 212; said lifting unit 213 is equipped with a reverse engagement unit that corresponds to said gap in the rail 212; the lifting unit 213 is fixed to the rail guide 212 using pins.

[0047] Said support shoes 211 with a predetermined vertical distance D1 are embedded into the surface of the structure. Both ends of said guide rail 212 are attached to said support shoes 211, wherein two adjacent said guide rails 212 are arranged one behind the other and are attached to one said support shoe 211. In this embodiment, a standard 3 m long guide rail is used, so the vertical distance D1 between each upper and lower adjacent said support shoes 211 is 3 m. To meet the anchoring requirements of said self-climbing frame 221, a group of first vertical posts of said self-climbing frame 221 is suitably attached to one of the sets of the self-climbing system 221, wherein each set of said self-climbing frame 221 system 21 includes three or four of said rail guides 212 and two sets of said lifting units 213; the distance between the centers of two adjacent guide rails 212 of the self-climbing system 21 is 1400 mm and corresponds to the distance between said first vertical posts. The presence of two mentioned lifting units 213 in each set of self-lifting system 21 provides for redundant design, when the mentioned self-lifting system 21 operates under normal conditions, only the upper lifting unit 213 is used, while the lower lifting unit 213 is a backup in case of failure of the upper lifting unit 213, and also performs a braking function in case of instability and sliding down of the self-climbing formwork.

[0048] Next, as shown in FIG. 4-6, the connection surface of said rail 212 and the support shoe 211 is defined as a rear surface, on the rear surface of said rail 212, a load-bearing thrust block 2121 is mounted, abutting the same said support shoe 211 on which the rail 212 is located; the upper load-bearing support block 2121 of the rail guide 212 abuts the upper part of the support shoe 211, and the lower load-bearing support block 2121 of the rail guide 212 abuts the inside of the support shoe 211, that is, the support shoes 2121 are located at the upper and lower ends of one rail guide 212, respectively.

[0049] On the front surface of said rail 212, an anti-slip block 2124 is installed; accordingly, an anti-slip tab 21312 is mounted on one of said lifting units 213. Said anti-slip blocks 2124 are arranged in a row on the front surface of the guide rail 212 with a pitch of 300 mm; If it is necessary to provide for the possibility of quick braking, the distance between said anti-skid blocks 2124 should be reduced accordingly. The anti-slip tongue 21312 is bolted to the lifting unit 213, its braking principle includes the following: when the self-climbing form is lifted, the front end of the anti-slip tongue 21312 pushes the lower protrusion on the anti-slip block 2124, causing the front end of the anti-slip tongue 21312 to be deflected downwards. and moves away from the anti-slip block 2124. At this point, the interlocking relationship between the mutual resistance of the anti-slip tongue 21312 and the anti-slip block 2124 is eliminated and ceases to interfere with the lifting of the self-climbing form. When said self-climbing form is lowered, the front end of the anti-slip tongue 21312 returns to a position between two adjacent upper and lower anti-slip blocks 2124. If the self-climbing form continues to lower, the front end of the anti-slip tongue 21312 abuts the upper lip of the underlying anti-slip block 2124, and since the rear end The anti-slip tongue 21312 is limited in movement and cannot continue to rotate, at which point a mutual resistance locking relationship is formed between the anti-slip tongue 21312 and the anti-slip block 2124, resulting in an anti-slip effect. If it is necessary to eliminate the interference caused by the anti-slip tongue 21312 when lowering the self-climbing formwork in normal mode, the front end of the anti-slip tongue 21312 should be forced downwards and locked in this position.

[0050] Reverse engagement grooves 2122 are provided in both side surfaces of said rail guides 212 in the longitudinal direction, a bottom 2122a of said reverse engagement groove 2122 is arranged parallel to the longitudinal direction of the guide; the first wall 2122b of the re-engagement slot 2122, which is closer to the front surface of the guide 212, is located perpendicular to the bottom of the slot 2122a; the second wall 2122c, which is closer to the rear surface of the guide 212, intersects with the bottom of the groove 2122a at an angle so that the cross-sectional width of the bottom 2122 of this reverse engagement groove 2122 is smaller than the cross-sectional width of the top of the groove. As shown in FIG. 6, the cross-sectional surface of said reverse engagement phase 2122 has the shape of a rectangular trapezoid, widening towards the mouth and narrowing towards the bottom of the groove 2122a. The re-engagement assembly of said lifting assembly 213, which has a loose fit in said re-engagement slot 2122, includes a movable block 213c, the cross-sectional shape of which is similar to the cross-sectional shape of said re-engagement slot 2122, and a connecting lever 213b that connects the end said movable block 213 c and the housing 213a of said lifting unit 213. By loose fit it is meant that the shape of said movable block 213 c is generally similar to the shape of the re-engagement slot 2122, but there remains a gap after they engage each other. As indicated in this embodiment, the cross-sectional plane of the reverse engagement groove 2122 has the shape of a rectangular trapezoid, the cross-sectional plane of the moving block 213 c also has the shape of a rectangular trapezoid, and in another possible embodiment, the cross-sectional plane of the said moving block 213 c can have the shape of a triangle. , tulip or rectangle. This free-fitting method provides between the rail guide 212 and the sliding block 213 with an offset gap and an angle difference between the upper and lower adjacent rail guides 212, which, however, does not affect the safety of lifting and lowering of the self-climbing form.

[0051] Further, between said reverse engagement groove 2122 and the front surface of the rail guide 212, through holes for pins 2123 are arranged on its two sides perpendicular to the longitudinal direction of the said guide rail 212; the distance D2 between the mentioned holes for the pins 2123 is 300-400 mm, respectively, the distance of one step of movement of the mentioned self-lifting system 21 is a multiple of the distance D2 between the mentioned holes for the pins 2123.

[0052] Said lifting assembly 213 includes a jack holder 2131 and a cylinder holder 2132 coupled to the bottom of said jack holder 2131 via a jack cylinder 2134, and a guide jack holder located at the bottom of said jack holder 2132. 2123. Each structural member of said lifting unit 213 includes a main body, a connecting arm protruding from the main body, and said movable block 213c mounted on an end of said connecting arm; said connecting lever and movable block 213c form said reverse engagement assembly.

[0053] Specifically, as shown in FIG. 4-6, the self-lifting frame jack holder 2131 includes a jack holder main body and a reverse engagement assembly consisting of a connecting arm and a moving block, and a single-pin hydraulic pin mounting mechanism 21311 mounted on one of the connecting arms. Accordingly, in one of the connecting arms of the self-climbing frame jack holder 2131 has one pin hole that corresponds to a pin hole 2123 in the guide rail 212; they have the same internal diameter and are located coaxially. Said single-pin hydraulic pin mounting mechanism includes a single pin, a hydraulic movement device located on a protruding end of said pin, and a limit frame fixed to said coupling arm. Said limiting frame provides an attachment point for said single pin in a locked state and a fixation point for said hydraulic movement device, while limiting the horizontal movement path of said pin. When said single pin is inserted into the coaxially positioned pin hole in the link arm and the pin hole 2123 in the rail 212, a connection is formed between said jack holder 2131 and the rail 212, after which the jack holder 2131 cannot move in the longitudinal direction. along the rail 212. When said single pin is removed from the pin holes, the connection between said jack holder 2131 and the rail 212 is released, after which the jack holder 2131 can be moved longitudinally along the rail 212. Preferably, said an anti-slip tab 21312 was bolted to the top of said jack holder 2131. Further, at the bottom of said jack holder 2131 there is a connecting eye bolted to said jack cylinder 2134.

[0054] As shown in FIG. 4 and Fig. 7, the hydraulic cylinder holder 2132 includes a main body of the hydraulic cylinder holder and a reverse engagement unit consisting of a connecting arm and a moving block, and a two-pin hydraulic mechanism for installing a pin 21321 mounted on one of the connecting arms. Accordingly, on one of the connecting arms of the holder the hydraulic cylinder 2132 has two pin holes, the distance between which corresponds to the distance between the pin holes in the rail guide 212; The two pin holes similarly have the same internal diameter and are located coaxially. Said two-pin hydraulic pin mounting mechanism includes upper and lower parallel pins located on a projecting end of said pins of the hydraulic movement device and a limit frame fixed to said coupling arm. Said limiting frame provides an attachment point for said pins in a locked state and a fixation point for said hydraulic movement device, while limiting the horizontal movement path of said pins. When said pins are inserted into coaxially located pin holes in the link arm and pin holes 21232123 in the rail 212, a connection is formed between the said cylinder holder 2132 and the rail 212, after which the cylinder holder 2132 cannot move longitudinally along the rail 212. When said pins are removed from the pin holes, the connection between said cylinder holder 2132 and the rail guide 212 is released, after which the cylinder holder 2132 can be moved longitudinally along the rail 212. Further, at the top of said cylinder holder 2132 there is a connecting eye, bolted connection fixed on said jacking cylinder 2134. Said cylinder holder 2132, through a set of pins, realizes a more stable connection with the rail guide 212 and provides a more stable auxiliary counter force when lifting the self-climbing form.

[0055] As shown in FIG. 4, the jack-up frame guide holder 2123 includes a guide holder main body and a reverse engagement unit consisting of a connecting arm and a moving block. One of the connecting arms has one pin hole that corresponds to a pin hole 2123 in the rail guide 212. The thickness of said jack-up frame holder 2123 relative to the support shoe 211 is similar to the thickness of the mentioned jack-up frame holder 2131 relative to the support shoe 211, and the said hydraulic cylinder holder 2132 has a thinner thickness relative to the support shoe 211. The front surfaces of said jack-up frame holder 2123 and said jack-up frame holder 2131 are designed as a bolted joint surface and are suitably supported and bolted to the jack-up frame 221, thereby preventing interference. for the self-lifting frame 221 and the hydraulic cylinder holder 2132, which prevents the lifting of the hydraulic cylinder holder 2132.

[0056] Preferably, to improve the efficiency of use of said self-lifting system 21, the inner diameter of said pin holes 2123 exceeds the outer diameter of said single pin and set of pins by 0.5-1 mm.

[0057] The process of operating the self-climbing formwork by said self-climbing system 21 and lifting it includes the following:

[0058] 1) Initial state: the hydraulic cylinder holder 2132 is connected to the rail guide 212, the jack holder of the jack-up frame 2131 is disconnected from the rail guide 212;

[0059] 2) The piston rod of the hydraulic cylinder jack 2134 is raised by a single stroke distance of 600 mm, which causes the jack-up frame 221 to move upward by 600 mm; the said one stroke corresponds to twice the distance between the holes for the pins 2123;

[0060] 3) The jacking holder of the jack-up frame 2131 is connected to the rail guide 212, the hydraulic cylinder holder 2132 is disconnected from the rail guide 212;

[0061] 4) The piston rod of the hydraulic cylinder jack 2134 is retracted to a distance of one stroke of 600 mm, which causes the hydraulic cylinder holder 2132 to move upward by 600 mm;

[0062] 5) The hydraulic cylinder holder 2132 is connected to the rail guide 212, the self-lifting frame jack holder 2131 is disconnected from the rail guide 212; the device is ready to enter the next lifting cycle for a distance of one stroke.

[0063] After the work of constructing the pylon using said self-climbing formwork is completed, the entire assembly of said self-climbing system 21 is lowered into the base of the pylon by moving downwards the entire assembly of said self-climbing system 21. The following sequence of actions is used:

[0064] 1) The lifting crane trolley system 223 is moved to the side of the jack-up system 221 and fixed;

[0065] 2) The locking connection between the front support leg 224 and the steel pylon 1 is removed, the support leg 224 is moved a certain distance to the end of the lifting boom to eliminate the possibility of interference between the support leg cross beam and the steel pylon 1 during the lowering process, and then the leg blocked;

[0066] 3) The hydraulic cylinder holder 2132 is connected to the rail guide 212, the self-lifting frame jack holder 2131 is disconnected from the rail guide 212;

[0067] 4) The piston rod of the hydraulic cylinder jack 2134 is retracted to a distance of one stroke of 600 mm, which causes the jack-up frame 221 to be lowered by 600 mm;

[0068] 5) The jacking holder of the jack-up frame 2131 is connected to the rail guide 212, the hydraulic cylinder holder 2132 is disconnected from the rail guide 212;

[0069] 6) The piston rod of the hydraulic cylinder jack 2134 extends one stroke distance of 600 mm, which causes the jack-up frame to lower by 600 mm;

[0070] 7) The hydraulic cylinder holder 2132 is connected to the rail guide 212, the self-lifting frame jack holder 2131 is disconnected from the rail guide 212; the device is ready to enter the next one-stroke cycle;

[0071] 8) The cycle is repeated 10 times, the unit is lowered 6 m to the position of the next section;

[0072] 9) The lifting crane trolley 223 is unlocked from the jack-up frame 221 and moved up along the rails 212; using a lifting crane trolley 223, the upper ends of the rail guides 212 are dismantled, hung and lowered for subsequent installation as a continuation of the lower ends of the rail guides 212;

[0073] 10) The lifting crane trolley 223 moves to the side of the jack-up system 221 again and is locked. The sequence step (3) - step (9) is repeated until the lifting device is lowered to the initial installation position;

[0074] 11) Using another crane, in the reverse order of installation, the jack-up device is dismantled.

[0075] In many parts of the structure of the mentioned one-way self-climbing formwork for mounting a steel pylon, including the self-climbing system 21, hydraulic equipment is used, which is centrally controlled by an electrical system.

[0076] The hydraulic system according to this application is an open type system, that is, the hydraulic oil, after being sucked out of the oil tank by a hydraulic pump, is distributed to the actuators, which, in turn, return the oil directly to the return oil tank; This solution is characterized by simplicity of design and good conditions for heat removal and oil filtration.

[0077] The self-climbing formwork hydraulic system is responsible for the upward movement of the entire formwork structure, the longitudinal movement of the crane trolley 223, the lateral movement of its lifting point, the operation of the hydraulic cylinders of the front support leg 224 and the operation of all pin installation mechanisms. The hydraulic station is installed on a working platform in the center of said jack-up frame 221 to ensure that all hydraulic cylinders are supplied with pressurized oil.

[0078] Said electrical system includes an electrical control system for the entire formwork assembly, a security control system and a remote video surveillance system.

[0079] Electric control system of the entire formwork set: The control objects of the electric control system of the formwork set are all the operating mechanisms of the equipment, including the raising and lowering of the power supply control system and the self-climbing frame 221, the longitudinal and lateral movement of the lifting crane trolley 223, etc. It is characterized by relatively high safety, reliability, has a full set of functions to prevent incorrect operation, and is capable of meeting the requirements for smooth adjustment of the operating speed of the mentioned self-climbing formwork in a wide range, and is also capable of providing synchronous high-precision control of the lifting process of the self-climbing frame 221. The system control unit is implemented with using a Siemens programmable controller, which is characterized by an advanced level of control, high reliability and ease of programming and maintenance. The core of the entire speed control system is the programmable logic controller (PLC), which is responsible for the logical control of all input and output control points of the system. Power is supplied to the PLC from a 220 V AC power supply. current PLC is mainly used to receive command signals, transmit machine control signals, and control the operation of machines.

[0080] The mentioned safety control system: in addition to the load limiter and the mentioned sensors, limit switches and control switches built into various mechanisms, the system also includes a wind sensor (which, if the set wind speed limit value is exceeded, gives an audible alarm signal and limits operation of mechanisms) and a force monitoring device (includes force sensors that are installed at different measurement points on the mechanisms; if a deviation of the voltage value from the norm is detected, the operation of this mechanism is automatically blocked and an alarm is sounded).

[0081] The main device of the safety control system is located in the control cabin of the crane, connected via a communication bus to the main controller installed on the unit and collects, displays and records the real-time status of all mechanisms, sensors, protective and safety devices of the unit.

[0082] The main safety control device transmits data about the operation of the unit to the cloud terminal via a wireless communication module, and also has a real-time query function via the Internet.

[0083] The crane is also equipped with a video surveillance system, the video cameras of which display in real time the operation of the winch 23, the lifting crane trolley 223, the front support leg 224, the lifting hook 2234, the jack-up system 21 and other monitoring points. The main device (recorder with hard disk) and monitor are installed in the control cabin.

[0084] Further, the installation of one-way self-climbing formwork for the installation of a steel pylon according to this application includes the following sequence of actions:

[0085] 1) First, with the help of another crane, the lower section of the steel pylon is installed, then the said self-climbing formwork is installed; the installation of support shoes 211 for the rail guides and support shoes for the support feet is carried out simultaneously with the construction of the steel pylon 1;

[0086] 2) The jack-up system 21 is being installed. The rail guides 212, the jack-up frame guide holder 2123, the hydraulic cylinder support, the jack-up jack holder 2131 are sequentially installed; the units are then connected using pins and the assembly is lifted by a crane, installed and bolted onto support shoes 211.

[0087] 3) Installation of the jack-up frame 221, the hinge support connection seat and the support seat connection seat 2212 is carried out.

[0088] 4) Installation of the main lifting beam 222 and the front support leg 224 is performed; the front support leg 224 is connected and secured to the corresponding support shoes.

[0089] 5) The lifting crane trolley 223 is raised to the top surface of the main lifting beam 222.

[0090] 6) Simultaneously with the installation of said lifting system, the installation of said lifting power system, including the dented winch 23, the corresponding hydraulic equipment and the electrical system, is carried out.

[0091] III. Method of installation of a single-column inclined pylon of a cable-stayed bridge

[0092] When installing an inclined pylon in a project for the construction of a cable-stayed bridge with antisymmetrical pylons and steel box girders using one-way self-climbing formwork for installing a steel pylon according to this application, the following sequence of actions is applied:

[0093] (1) The surfaces of the single-column inclined cable-stayed bridge pylon are divided into an upper inclined surface 1a and a lower inclined surface 1b;

[0094] The upper (upward facing) inclined surface 1a refers to the side surface of the inclined pylon 1 forming a maximum angle with the ground; by the said lower (downward-facing) inclined surface lb is meant the lateral surface forming a minimum angle with the ground surface. Generally, the lower inclined surface 1b is the opposite side of the upper inclined surface 1a. The projection area on the ground surface of the said inclined pylon 1 is greater than the cross-sectional area at the base of the pylon 1.

[0095] (2) At the top of the already erected section of the steel pylon 11, the height of which satisfies the established requirements, a self-climbing form is installed so that its lifting arm 2221a is extended towards the lower inclined surface 1b;

[0096] As the mentioned self-climbing formwork, a one-sided self-climbing formwork is used for installing a steel pylon according to this application, which, using the installation sequence described above, is fixed in the upper part of the already erected section of the steel pylon 11. The joining work of the mentioned section of the steel pylon 11 is carried out in advance on the surface ground using a crane, its height must satisfy the requirements for the installation of the rail guides 212 of the mentioned jack-up system 21, that is, the height of this erected section of the steel pylon 11 must be greater than the total height H formed by the rail guides 212 of the mentioned jack-up system 21. In particular, in In this embodiment, the total height H of the rail guides 212 is in the range of 9-12 m. Further, as shown in FIG. 8, said guide rails 212 are installed on the upper inclined surface 1a of said inclined pylon. Accordingly, the lifting boom 2221a is extended towards said lower inclined surface lb; the bottom of said lifting boom 2221a is used as a lifting point for the next section of steel pylon 12 to be installed. If the inclined pylon is sloped upward in the direction transverse to the bridge, its upper inclined surface 1a and lower inclined surface 1b will face upward in the direction transverse to the bridge. bridge. If the inclined pylon has an upward slope in the longitudinal direction of the bridge, then its other upper inclined surface 1a and lower inclined surface 1b will face upward in the longitudinal direction of the bridge. If the slope direction of the inclined pylon is not parallel and not perpendicular to the main beam of the bridge structure, then its upper inclined surface 1a and lower inclined surface lb will be located on the centerline of the pylon itself.

[0097] (3) Using said self-climbing formwork on the side of said lower inclined surface lb of the steel pylon, the next section 12 is lifted to the top of the already installed steel pylon section 11 for installation;

[0098] The side of said lower inclined surface lb is used as a lifting point for the next section of steel pylon 12 to be installed. If the lifting point is on the ground, and the characteristics of the base meet the specified requirements, then the next section of steel pylon 12 to be installed can be carried out using a vehicle. move under lifting boom 2221a. If the lifting point is located in the river bed, or the characteristics of the foundation at this point do not meet the requirements, a temporary platform can be erected at the lifting point or a temporary pontoon bridge can be extended to it. If riverbed conditions permit, a barge can be used as a temporary platform.

[0099] Specifically, the process of lifting and mounting said next section of steel pylon 12 to be installed includes the following:

[00100] The next section of steel pylon 12 is moved to a position directly below said lifting boom 2221a;

[00101] The lifting boom 2221a vertically lifts the next section of the steel pylon 12 to a predetermined height above the top of the already installed section of the steel pylon 11. Specifically, the lifting crane trolley 223 moves in the longitudinal direction to the end of the lifting boom, and then adjusts the lateral position of the undercarriage 2231 of the mentioned lifting crane trolley 223. After leveling the position, a lifting hook 2234 is lowered over the next section of the steel pylon 12. The lifting hook 2234 is hooked to the next section of the steel pylon 12 to be installed, after which it is lifted using a power lifting system. To ensure the possibility of subsequent joining, the next section of the steel pylon 12 first rises to a height slightly higher than the height of the top of the already installed section of the steel apron 11, for this reason the height of the horizontal movement channel of the next section of the steel pylon 12 in the alignment of the mentioned self-climbing formwork is greater than the height of the next one to be installed sections of the steel pylon 12. The dimensions of the horizontal movement channel of the said next section of the steel apron 12 are limited by the surfaces of the main lifting beam 222, the front support leg 224, the lifting crane trolley 223 and the already installed section of the steel pylon 11. The height of the mentioned channel is understood as the vertical distance from the upper surface of the already installed the installed section of the steel pylon 11 to the running trolley 2231 of the lifting crane trolley 223; the height of the said channel satisfies the working height, sufficient for the passage of one next section of steel 12 to be installed and a lifting hook 2234.

[00102] The next section of steel pylon 12 is moved along the length of the lifting boom 2221a to a position exactly above the installed section of steel pylon 11; the said next section of the steel pylon 12 is moved through the said horizontal movement channel to a position above the installed section of the steel pylon 11.

[00103] According to the type of linear arrangement of the inclined pylon section, the next section of the steel pylon 12 to be installed is aligned. Using the two winches 23 of the above-mentioned crane trolley 223, the position of the undercarriage 2231 is precisely adjusted, which makes it possible to lower the next section of the steel pylon to be installed. 12 to the docking position and make a welding connection; At this point, the technological operation of installing one next section of steel pylon 12 is completed.

[00104] (4) After installing the next section of the steel pylon 12 in its place using the self-climbing system 21 integrated into the structure of the mentioned self-climbing formwork, it is lifted to the next working position to carry out the installation of the next section of the steel pylon 12. As described above According to the method of lifting the self-climbing system 21, the self-climbing formwork is lifted again along the steel pylon 1. Sequence (3) is repeated cyclically until the lifting and joining of all the next sections of the steel pylon 12 to be installed is completed.

[00105] (5) The installation of said next section of the steel pylon 12 is carried out in accordance with the line type of the inclined portion of the pylon, while the lifting frame of said self-climbing form is held in a horizontal position.

[00106] While holding said main lifting beam 222 in a horizontal position, adjusting the mounting angle between said jack-up frame 221 and the main lifting beam 222, horizontally moving said front support leg 224 to a locking position on the bottom surface of the main lifting beam 222, and adjusting the height of the anchorage of the front support leg 224 on the surface of the steel pylon section, whereby said main lifting beam 222, supported by said jack-up frame 221 and the front support leg 224, is held in a horizontal position. Specifically, the mounting angle between said self-lifting frame 221 and the main lifting beam 222 is adjusted by increasing or decreasing the number of sealing pads in the thrust seat. Next, when lifting the beams, the hydraulic cylinder of the support leg 2243 located at the bottom of the main beam 222 adjusts the position of the front support leg 224 located on it. Then, the lower end of the front support leg 224 is connected to the surface of the steel pylon 1 using pins ; Finally, the overall height of the front support leg 224 is adjusted and the main lift beam 222 is leveled.

[00107] (6) After completing the installation of the steel pylon 1, according to the above-described method of lowering the self-climbing system 21, the self-climbing form is lowered along the steel pylon 1 to the initial installation position for subsequent dismantling of the self-climbing form;

[00108] (6) In the process of lowering and dismantling the self-climbing formwork, grinding, painting of the steel pylon 1 and other necessary work are carried out in the dismantling area of the self-climbing formwork.

[00109] Summarizing the above regarding the one-way self-climbing formwork for installing a steel pylon according to this application and its application on a single-column inclined pylon of a cable-stayed bridge, the self-climbing formwork according to this application uses the principle of self-climbing supported by the pylon structure, which does not require the construction of a separate foundation or supported supports on the ground, which makes it possible to reduce the height of self-climbing formwork, eliminate the problem of lifting and installation at high heights, and guarantee high safety and high efficiency of construction work.

Claims (51)

1. A one-way jack-up device for mounting sections of a steel bridge pylon, characterized in that it includes a jack-up system, as well as a lifting system that is attached to said jack-up system, and a lifting power system that is installed on said load-lifting system; including, the said self-lifting system includes support shoes installed in the form of mortgages on the surface of one of the sides of the pylon, rail guides mounted on the support shoes and lifting units attached by reverse engagement to the rail guides; said lifting system is secured to said lifting units, while its lifting boom is extended in the direction opposite to the fixation surface of said self-lifting system; said lifting power system includes power units mounted on said lifting boom and used to perform lifting and horizontal movement operations. 2. The self-climbing device according to claim 1, characterized in that both ends of each said guide rail are attached to said support shoes, wherein two adjacent said guide rails are located one behind the other and are attached to one mentioned support shoe. 3. Self-climbing device according to claim 2, characterized in that each set of said self-climbing system includes at least three mentioned rail guides and at least two sets of said lifting units. 4. The self-climbing device according to claim 1, characterized in that the connection surface of each said rail guide and each support shoe is defined as a rear surface, reverse engagement grooves are arranged in both side surfaces of said rail guides in the longitudinal direction; each said lifting unit is equipped with a re-engagement unit that has a loose fit in said re-engagement groove; each said re-engagement unit includes a movable block the cross-sectional shape of which matches the cross-sectional shape of said re-engagement slot, and a connecting lever that connects the end of said movable block and the body of said lifting unit; said lifting unit is fixed to the rail guide using pins; each said lifting unit includes a jacking frame holder and a hydraulic cylinder holder connected to the lower part of said jacking frame holder by means of a jacking cylinder, and a guide jacking frame holder located in the lower part of said hydraulic cylinder holder. 5. The self-lifting device according to claim 4, characterized in that one of the connecting arms of said jacking holder of each jacking frame is equipped with a single-pin hydraulic mechanism for installing a pin, correspondingly one connecting arm of said jacking holder of the jacking frame has a hole for installing a pin; one of the connecting arms of said hydraulic cylinder holder is equipped with a two-pin hydraulic mechanism for installing a pin, correspondingly one connecting arm of said jacking holder of the jack-up frame has two holes for installing a pin; the connecting arm of said jack-up frame guide holder has one pin hole. 6. Self-lifting device according to claim 5, characterized in that the distance between said holes for the pins is 300-400 mm. 7. The jack-up device according to claim 4, characterized in that the front surfaces of said jack holder of each jack-up frame and said guide holder of each jack-up frame are made in the form of a surface adapted for connection by a bolted connection. 8. The jack-up device according to claim 4, characterized in that an anti-slip block is installed on the front surface of each said guide rail, correspondingly there is an anti-slip tab on the top of said jacking holder of the jack-up frame. 9. Self-lifting device according to claim 1, characterized in that said lifting system includes a self-lifting frame connected to the lifting units using bolts, as well as a main lifting beam mounted on top of said self-lifting frame mounted on top of said main lifting beam a lifting crane trolley and front support legs, which rest against the lower part of the said main lifting beam and are fixed with an anchor on the side of the pylon opposite the fixation surface of the said self-lifting system. 10. Self-lifting device according to claim 9, characterized in that a rotary support and a corresponding thrust socket are installed between the top of said jack-up frame and said main lifting beam, said rotary support and the thrust socket are located in the longitudinal direction of the main lifting beam. 11. Self-lifting device according to claim 9, characterized in that said main lifting beam includes a pair of parallel main longitudinal beams and two end transverse beams, which are connected at right angles to said main longitudinal beams; on the lower surface of said main longitudinal beams, from the end of the connection with the jack-up frame to the end of the lifting boom, a connecting socket of the rotary support, a connecting socket of the thrust socket and leveling rail guides are successively located. 12. Self-lifting device according to claim 11, characterized in that the width of each mentioned transverse beam is greater than the width of the lifted pylon in the transverse direction. 13. The self-lifting device according to claim 11, characterized in that said lifting crane trolley includes a running trolley transmitting output power from a lifting winch to control the lifting hook, as well as a main beam of the crane trolley mounted perpendicular to said main longitudinal beam, and braces a crane trolley connecting said main beam of the crane trolley with the main longitudinal beam; the frame of said running trolley is located on the main beam of the crane trolley and, by means of a hydraulic cylinder, is made to move in the transverse direction along said main beams of the crane trolley. 14. The self-climbing device according to claim 13, characterized in that on the upper surface of each said main longitudinal beam, a reverse engagement rail guide is installed, which suitably provides reverse engagement of the base of said crane trolley brace on the upper surface of said main longitudinal beam, longitudinal movement on said the main longitudinal beam is realized by means of a hydraulic cylinder of longitudinal movement. 15. The self-climbing device according to claim 11, characterized in that said front support leg includes a pair of upper support leg posts, which are reverse-engaged on said leveling rail of the main longitudinal beam, a lower support leg anchor assembly, which is rotatably connected to the upper supports of the support leg and anchors are fixed on the surface of the pylon, and the hydraulic cylinder of the support leg, which moves the said front support leg in the horizontal direction along the leveling rail guide. 16. A method for installing sections of a single-column inclined pylon of a cable-stayed bridge, characterized by the fact that it includes the following sequence of actions: the surfaces of a single-column inclined pylon of a cable-stayed bridge form the upper and lower inclined surface; on the top of the already erected section of the steel pylon, the height of which satisfies the established requirements for the installation height of the jack-up device, install the jack-up device so that its lifting boom is extended towards the said lower inclined surface; using said self-lifting device on the side of said lower inclined surface of the steel pylon, the next section is lifted to the top of the already installed section of the steel pylon for installation; after installing the said next section of the steel pylon in its place using a jack-up system integrated into the design of the said jack-up device, it is lifted to the next working position in order to install the next section of the steel pylon; the installation of the said next section of the steel pylon is carried out in accordance with the type of line of the inclined section of the pylon, while the lifting frame of the said jack-up device is held in a horizontal position. 17. The installation method according to claim 16, characterized in that the said jack-up device is a one-sided jack-up device for mounting a steel bridge pylon, which includes a jack-up system, as well as a load-lifting system that is attached to said jack-up system, and a lifting power a system that is installed on said lifting system; the said self-lifting system includes support shoes installed in the form of embedded parts in the surface of one of the sides of the pylon, rail guides mounted on the support shoes and lifting units attached by reverse engagement to the rail guides; said lifting system is secured to said lifting units, while its lifting boom is extended in the direction opposite to the fixation surface of said self-lifting system; said lifting power system includes, mounted on said lifting boom, hydraulic components used to perform lifting and horizontal movement operations; including the mentioned self-lifting system installed on the upper inclined surface of the mentioned single-column inclined pylon of the cable-stayed bridge. 18. The installation method according to claim 17, characterized in that the installation process of said one-way jack-up device for installing steel bridge pylon sections includes the following: on the upper inclined surface of the steel pylon section, support shoes are installed in the form of mortgages; said self-lifting system is mounted on said support shoes; a lifting system is installed on said self-lifting system; Simultaneously with the installation of the said lifting system, the said lifting power system is installed. 19. The installation method according to claim 18, characterized in that said lifting system includes a self-lifting frame, a main lifting beam, a lifting crane trolley and front support legs; The installation process of the said lifting system includes the following: perform bolted fixation of the self-climbing frame on the said self-climbing system; the main lifting beams and front support legs are installed at the top of the self-lifting frame; A lifting crane trolley is installed on the upper surface of the main lifting beams. 20. The installation method according to claim 19, characterized in that, while holding said main lifting beam in a horizontal position, adjusting the mounting angle between said jack-up frame and the main lifting beam, horizontally moving said front support leg to a fixation position on the lower surface of the main lifting beam beam and adjusting the height of the anchorage of the front support leg on the surface of the steel pylon section, as a result of which said main lifting beam, supported by said jack-up frame and the front support leg, is held in a horizontal position. 21. The installation method according to claim 19, characterized in that the sequence of dismantling the mentioned one-way self-climbing device for installing a steel bridge pylon includes the following: the lifting crane trolley is moved horizontally along the main lifting beam and fixed exactly above the self-lifting frame; the anchor fastening of the front support leg is released on the surface of the steel pylon, the main lifting beam is horizontally moved a certain distance in the direction of the end of the lifting boom; the self-climbing system is operated in the opposite direction, as a result of which the one-sided self-climbing device for mounting the steel bridge pylon is completely lowered to the initial mounting position; disassembly of a one-sided self-lifting device for installation of a steel pylon is carried out in the reverse order of installation. 22. The installation method according to claim 18, characterized in that the height of said self-lifting system does not exceed the height of the already installed section of the steel pylon. 23. The installation method according to claim 16, characterized in that the process of lifting and installing said next section of the steel pylon includes the following: moving the next section of the steel pylon to a position directly below said lifting boom; using a lifting boom, the next section of the steel pylon is vertically lifted to a predetermined height above the top of the already installed section of the steel pylon; the next section of the steel pylon is moved horizontally along the length of the lifting boom to a position above the already installed section of the steel pylon; In accordance with the type of line of the inclined section of the pylon, the next section of the steel pylon is joined. 24. The installation method according to claim 23, characterized in that the height of the corridor for horizontal movement of the next section of the steel pylon inside the jack-up device is greater than the height of the next section of the steel pylon.