Suspension cable soft platform formwork structure for silo conical shell construction and construction method

Abstract

The invention discloses a suspension cable soft platform formwork structure for silo conical shell construction and a construction method, and relates to the technical field of silo conical shell construction.The formwork structure comprises a suspension cable net system, a formwork supporting system and an intelligent monitoring system.The suspension cable net system comprises main cables and auxiliary cables which are orthogonally arranged; the main cables are radially distributed along the silo top of the silo body, and the auxiliary cables are annularly arranged along the silo top of the silo body in a closed mode. The formwork supporting system comprises an auxiliary scaffold board and a full supporting frame which are arranged in the suspension cable net system, the upper portion of the full supporting frame is of a circular truncated cone structure forming a silo conical shell, a conical shell side wall mold is arranged on the arc face of the circular truncated cone structure, and a conical shell silo top mold is arranged on the upper bottom face of the circular truncated cone structure. The intelligent monitoring system comprises a load sensor and a tilt angle sensor. According to the method, through dynamic coupling of the orthogonal suspension cable net and the modular supporting system and combination of an intelligent monitoring system, precise control over the construction process is achieved, the steel consumption is reduced, the construction period is shortened, and safety and adaptability are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of silo cone shell construction, and particularly relates to a suspension cable soft platform formwork structure and a construction method for silo cone shell construction. BACKGROUND

[0002] Most of the large-diameter silo top structures are reinforced concrete cone shells + beam slab structures, and most of the mature construction technologies of the silo cone shell construction formwork support system currently adopt three construction technologies: one is to construct a full-steel pipe scaffold support system from the funnel platform, which has the problems of long construction period, large amount of steel pipe, poor operation condition for removing the full-steel pipe scaffold, great safety risk, great difficulty in transporting the steel pipe out of the silo, and relatively high construction cost; the second is to adopt a steel truss platform + scaffold support system in combination with a silo wall rigid slip form, which has the problems of large amount of steel, great difficulty in installation and removal, high transportation cost, and long construction period; and the third is to adopt a center derrick + radial beam + scaffold support system in combination with a silo wall slip form, which has the problems of large amount of material, great construction difficulty, high cost of erection and removal, high transportation cost, and long construction period.

[0003] Although the existing suspension cable structure is used for large-span buildings, it is limited in application in the construction of silo cone shells, especially in the aspects of cooperative stress of flexible suspension cable and rigid support, dynamic adjustment, and intelligent monitoring. For example, there is a lack of effective control measures for the influence of suspension cable sag on the stability of the formwork, and there is a lack of real-time monitoring means in the construction process, resulting in high safety risk and poor economy. SUMMARY

[0004] Therefore, the present application aims at the problems and deficiencies of the prior art, and provides a suspension cable soft platform formwork structure and a construction method for silo cone shell construction, so as to solve the technical problem of the technical blank of the existing suspension cable structure in the aspects of cooperative stress of flexible suspension cable and rigid support, dynamic adjustment, and intelligent monitoring. To solve the above problems, the present application adopts the following technical solutions: The first object of the present application is to provide a suspension cable soft platform formwork structure for silo cone shell construction, which is used to connect a silo cone shell to the upper surface of a silo body, the silo cone shell comprising a cone shell side wall and a cone shell top, and the suspension cable soft platform formwork structure comprising: A suspension cable net system is connected to the evenly distributed lifting rings on the lower ring beam and the upper ring, and the suspension cable net system is provided downwardly protruding, the suspension cable net system comprising orthogonally arranged main cables and auxiliary cables, the main cables being radially distributed along the top of the silo body, and the auxiliary cables being arranged in a closed ring around the top of the silo body. The module frame support system comprises auxiliary scaffolds arranged inside the suspension cable net system and full-support frames arranged on the auxiliary scaffolds, the upper part of the full-support frame is a circular truncated cone structure constituting the silo conical shell, the circular arc surface of the circular truncated cone structure is provided with a conical shell side wall mold, and the upper bottom surface of the circular truncated cone structure is provided with a conical shell top mold. The intelligent monitoring system comprises a load sensor and an inclination sensor, the load sensor is used for collecting the suspension cable stress of the suspension cable net system in real time, and the inclination sensor is used for collecting the verticality of the vertical rod and the platform settlement data of the module frame support system in real time.

[0005] Further, the intersection of the main cable and the auxiliary cable is provided with an aluminum alloy pressure buckle, the aluminum alloy pressure buckle is used for fixing the main cable and the auxiliary cable through an adjustable buckle release, so that the sag error of the suspension cable net system is controlled within ±50 mm.

[0006] Further, the suspension cable net system further comprises a hydraulic tensioning device for grading pre-tensioning the main cable and the auxiliary cable, and the initial pre-tensioning force of the hydraulic tensioning device is 15% to 20% of the breaking tension.

[0007] Further, the main cable is a steel core steel wire rope with a diameter of 32 mm, the auxiliary cable is a steel core steel wire rope with a diameter of 28 mm, and the grid spacing between the main cable and the auxiliary cable is 800 mm×800 mm.

[0008] Further, the full-support frame comprises vertical rods arranged at the intersection of the main cable and the auxiliary cable, sweeping rods arranged in the grid at the intersection of the main cable and the auxiliary cable, inclined rod supports and scissors supports. The vertical rods and the sweeping rods are connected and installed with first step horizontal rods through double fasteners to form a starting frame, the vertical rods extend into the main cable and the auxiliary cable and the sweeping rods by 300 mm, and the starting frame is taken as a starting point to symmetrically expand and erect around; The inclined rod supports are arranged on the vertical rods at the first step distance of the full-support frame, the upper part of the inclined rod support is connected to the vertical rod, and the lower part of the inclined rod support is connected to the sweeping rod. The scissors support comprises horizontal scissors supports and vertical scissors supports, and the horizontal scissors supports and the vertical scissors supports extend to the upper ring beam, the lower ring beam, the conical shell side wall and the conical shell top, and are tightly fixed to the concrete formwork surface.

[0009] Further, the horizontal scissors support is arranged in three layers, the middle one is arranged in the upper horizontal rod of the step distance of the hanging ring and is tightly arranged on the top of the lower ring beam, the upper one is arranged in the horizontal rod of the upper ring beam and is tightly arranged on the top of the upper ring beam, and the lower one is arranged in the upper horizontal rod layer of the second step distance of the full-support frame. The interval of the horizontal scissors support is not more than 3.6 m, and the vertical scissors support is arranged every 4 spans along the main cable direction.

[0010] Further, the bottom of the vertical rod is provided with a vertical rod dynamic leveling device, the vertical rod dynamic leveling device comprises a screw adjuster, a pipe piece pad and a laser level, the adjusting range of the screw adjuster is 10-50 mm, and the laser level is used for real-time calibration of the levelness of the vertical rod.

[0011] Further, the size of the auxiliary scaffold board is 3000mm*3000mm, and a connecting fastener is pre-welded on the edge of the auxiliary scaffold board (21).

[0012] Further, the range of the load sensor is 0-50kN, and the accuracy of the inclination sensor is ±0.1°.

[0013] The second object of the application is to provide a construction method of the suspension cable soft platform formwork structure for the construction of the silo cone shell, based on the suspension cable soft platform formwork structure for the construction of the silo cone shell, the construction method comprises the following steps: Step one: in the silo body pouring construction, when the pouring reaches the position of the silo cone shell close to the top of the silo wall, the overhanging scaffold sleeve is pre-buried at the position; Step two: continue pouring the silo body, when the strength of the silo wall of the silo body 51 pre-buried with the overhanging scaffold sleeve reaches the construction requirement, the double-row overhanging scaffold is erected inside and outside the silo body by using the overhanging scaffold sleeve; Step three: by using the overhanging scaffold, the workers bind and construct the reinforcement of the silo body, the lower ring beam and the reinforcement of the silo cone shell according to the design requirement of the structure node; Step four: the position of the hanging ring is pre-played by using the BIM model, and the main cable hanging ring and the auxiliary cable hanging ring are arranged in a ring on the inner wall of the lower ring beam by using the laser positioning instrument, the pre-buried main cable hanging ring and auxiliary cable hanging ring are welded with the structural reinforcement, wherein the main cable hanging ring is in the upper layer, and the auxiliary cable hanging ring is in the lower layer; Step five: the lower ring beam formwork is erected, and the top of the silo body and the lower ring beam are poured with concrete; Step six: when the strength of the cone shell sidewall and the lower ring beam meets the construction requirements, the main cable and the auxiliary cable are hung on the main cable and the auxiliary cable rings respectively, the ends of the main cable and the auxiliary cable are steel wire rope buckles, which are connected to the corresponding rings by unloading, the main cable and the auxiliary cable are divided into upper and lower two layers and the rope joints are closely fitted, the joints are fixed by aluminum alloy buckles, finally forming a orthogonal cable net, the main cable and the auxiliary cable bear force together, and the design pre-tightening force is tensioned three times, after each tensioning, the slack rate is monitored for 24 hours, the main force of the main cable is arranged in the upper layer, and the design pre-tightening force is 30%, 60% and 100% respectively; Step seven: a steel pipe frame is laid on the curved surface of the orthogonal cable net, the steel pipe frame is assembled by a plurality of steel pipe meshes; the steel pipe mesh is fixed with an auxiliary scaffold board; after the steel pipe frame is laid, a safety net is fully laid on the steel pipe frame, and the edge of the safety net is fixed to the rope ring; Step eight: a full-support frame for supporting the cone shell sidewall and the cone shell roof template is erected on the steel pipe frame by using the auxiliary scaffold board, and after the full-support frame is erected, the cone shell sidewall template is erected under the support of the full-support frame; Step nine: after the erection of the shell sidewall template is completed, the upper ring beam template is erected; because the orthogonal cable net is elongated under the action of load, vertical increment is generated, therefore, when the full-support frame is erected to the bottom position of the upper ring beam, the height of the full-support frame is increased; then the cone shell roof template and the steel bar are bound, and the cone shell roof beam is supported on the upper ring beam; finally, the height of the vertical rod is calibrated by the intelligent monitoring system, and the cumulative adjustment amount of the vertical rod is less than or equal to 5mm; Step ten: the concrete of the silo cone shell is poured in four times, each segment height is less than or equal to 1.5m, and low-slump concrete is used to compact from bottom to top with an attached vibrator, the slump of the low-slump concrete is 140-160mm, and the settlement is recorded by the intelligent monitoring system during the concrete pouring, wherein: The first pouring is the concrete of the remaining concrete of the lower ring beam and the first inclined plate of the lower part of the cone shell sidewall, and the third pouring is carried out after the strength reaches 80% or above; The second pouring is the remaining sidewall concrete of the cone shell, and the third pouring is carried out after the strength reaches 80% or above; The third pouring is the top concrete of the cone shell sidewall and the concrete of the upper ring beam, and the main beam nest of the cone shell roof is reserved on the upper ring beam during the pouring, and the fourth pouring is carried out after the strength reaches 80% or above; The fourth pouring is the concrete of the cone shell roof beam and the concrete of the cone shell roof platform, and the whole pouring is completed; Step eleven: after the concrete strength reaches 100%, the formwork and the orthogonal cable net are removed, the formwork is removed according to the order of removing non-bearing formwork first and then removing bearing formwork and full-support frame.

[0014] Compared with the prior art, the present application has obvious advantages and beneficial effects, which are embodied in the following aspects: The suspension cable soft platform formwork structure for the construction of the silo cone shell in the present application comprises a suspension cable net system, a formwork support system and an intelligent monitoring system, wherein the suspension cable net system is connected with the hanging rings uniformly distributed on the lower ring beam and the upper ring, and the suspension cable net system is provided downwardly protruding, the suspension cable net system comprises main cables and auxiliary cables arranged orthogically, the main cables are distributed radially along the top of the silo body, and the auxiliary cables are arranged in a closed loop along the top of the silo body, which arrangement enables the suspension cable net system to effectively disperse and transmit the weight of the silo cone shell to the lower ring beam of the silo body. During the construction process, the hanging rings are first fixed on the lower ring beam and arranged at the positions and intervals required by the design. Then the main cables and the auxiliary cables are installed on the hanging rings in the radial and loop directions respectively, and through appropriate tensioning and fixing measures, the suspension cable net system forms a stable downwardly protruding shape, providing a reliable suspension foundation for the subsequent formwork support system; the formwork support system comprises auxiliary scaffolds and full-support frames, the auxiliary scaffolds are arranged inside the suspension cable net system, and the full-support frames are arranged on the auxiliary scaffolds, the upper part of the full-support frame is a circular table structure constituting the silo cone shell, the circular arc surface of the circular table structure is provided with a cone shell side wall mold, and the upper top surface of the circular table structure is provided with a cone shell top mold. During the erection process, the auxiliary scaffolds are first installed to ensure that they are firmly connected with the suspension cable net system and can bear the weight of the construction personnel and construction equipment. Then the full-support frames are gradually erected on the auxiliary scaffolds, and the positions and heights of the full-support frames are adjusted to make them closely cooperate with the cone shell side wall and the cone shell top mold. Through accurate positioning and fixing, the shape and size of the mold are ensured to meet the design requirements, providing a stable formwork support structure for the concrete pouring of the silo cone shell. The intelligent monitoring system comprises load sensors and inclination sensors, the load sensors are used to collect the suspension cable stress of the suspension cable net system in real time, and the inclination sensors are used to collect the verticality of the vertical rods of the formwork support system and the platform settlement data in real time. During the construction process, the sensors are installed at key positions, such as the stress points of the suspension cables, the bottom of the vertical rods of the support frames and the key nodes of the platform. Through the connection of the sensors and the monitoring equipment, the suspension cable stress and structural deformation data are obtained in real time and transmitted to the intelligent monitoring system for analysis and processing. The construction personnel can check the monitoring data at any time to timely understand the stress and deformation of the structure, so as to adjust and optimize the construction process. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 FIG. 1 is a structural schematic diagram of the suspension cable soft platform formwork structure for the construction of the silo cone shell in the embodiment of the present application; Figure 2 FIG. 2 is a structural schematic diagram of the suspension cable net system in the embodiment of the present application; Figure 3 FIG. 3 is a top view structural schematic diagram of the suspension cable net system in the embodiment of the present application; Figure 4 Figure 1 is a schematic view of the installation position of the aluminum alloy pressure buckle in the embodiment of the present application; Figure 5 Figure 2 is a schematic view of the system architecture of the mold frame support system, the suspension cable net system and the intelligent monitoring system in the embodiment of the present application; Figure 6 Figure 3 is a schematic view of the topological structure of the intelligent monitoring system in the embodiment of the present application; Figure 7 Figure 4 is a schematic view of the installation structure of the auxiliary scaffold board in the embodiment of the present application.

[0016] Explanation of reference signs: 1-suspension cable net system; 11-main cable; 12-secondary cable; 13-aluminum alloy pressure buckle; 14-hydraulic tensioning device; 2-mold frame support system; 21-auxiliary scaffold board; 22-full-support frame; 221-vertical rod; 222-sweeping rod; 223-inclined rod support; 224-shearing support; 2241-horizontal shearing support; 2242-vertical shearing support; 23-conical shell side wall mold; 24-conical shell silo top mold; 3-intelligent monitoring system; 31-load sensor; 32-inclination sensor; 4-cantilever scaffold; 5-silo; 51-silo body; 52-conical shell of silo; 521-conical shell side wall; 5211-upper ring beam; 5212-lower ring beam; 5213-suspension ring; 522-conical shell silo top. DETAILED DESCRIPTION

[0017] In order to make the technical problems to be solved by the present application, the technical solutions and beneficial effects more clearly understood, the present application will be further described in detail below in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0018] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0019] In addition, the terms "first", "second", "third", etc. are used only for descriptive purposes and are not to be construed as indicating or implying relative importance or an ordered ranking of the indicated technical features. Thus, features defined with "first", "second" or "third" can include, explicitly or implicitly, one or more of such features. In the description of the application, "a plurality of" means two or more, unless expressly specified and limited otherwise.

[0020] In the description of the application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", etc. indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application.

[0021] In the description of the application, it should be noted that unless otherwise expressly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0022] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings.

[0023] Please refer to Figures 1-7 As shown in the drawings, the embodiment of the present application provides a suspension cable soft platform formwork structure for silo cone shell construction. The silo 5 in the embodiment includes a silo body 51 and a silo cone shell 52 connected to form a whole. The silo cone shell 52 is composed of a cone shell side wall 521 and a cone shell top 522. The suspension cable soft platform formwork structure is used to connect the silo cone shell 52 to the upper surface of the silo body 51. The inside of the cone shell side wall 521 is provided with an upper ring beam 5211 and a lower ring beam 5212 on the upper and lower sides respectively. The upper ring beam 5211 and the lower ring beam 5212 are both provided with ring-shaped evenly distributed lifting rings 5213.

[0024] The suspension cable soft platform formwork structure includes a suspension cable net system 1, a formwork support system 2 and an intelligent monitoring system 3, wherein: The suspension cable net system 1 is connected with the evenly distributed hanging rings 5213 on the lower ring beam 5212, and the suspension cable net system 1 is provided in a downward protruding manner. The suspension cable net system 1 includes main cables 11 and auxiliary cables 12 arranged in a cross manner. The main cables 11 are distributed in a radial manner along the top of the silo body 51, and the auxiliary cables 12 are arranged in a closed loop manner along the top of the silo body 51. Such an arrangement enables the suspension cable net system 1 to effectively disperse and transfer the weight of the silo cone shell 52 to the lower ring beam 5212 of the silo body 51. During construction, the hanging rings 5213 are first fixed on the lower ring beam 5212 and arranged at positions and intervals as required by the design. Then, the main cables 11 and the auxiliary cables 12 are installed on the hanging rings 5213 in a radial and loop manner respectively, and through appropriate tensioning and fixing measures, the suspension cable net system 1 forms a stable downward protruding shape, providing a reliable suspension foundation for the subsequent formwork support system 2.

[0025] The formwork support system 2 includes auxiliary scaffolding boards 21 and full-support frames 22. The auxiliary scaffolding boards 21 are arranged inside the suspension cable net system 1, and the full-support frames 22 are arranged on the auxiliary scaffolding boards 21. The upper part of the full-support frames 22 is a circular table structure constituting the silo cone shell 52. The circular arc surface of the circular table structure is provided with a cone shell side wall mold 23, and the upper top surface of the circular table structure is provided with a cone shell top mold 24. During construction, the auxiliary scaffolding boards 21 are first installed to ensure that they are firmly connected with the suspension cable net system 1 and can bear the weight of construction personnel and construction equipment. Then, the full-support frames 22 are gradually built on the auxiliary scaffolding boards 21, and the position and height of the full-support frames 22 are adjusted to closely cooperate with the cone shell side wall 521 and the cone shell top mold 24. Through accurate positioning and fixing, the shape and size of the mold are ensured to meet the design requirements, providing a stable formwork support structure for the concrete pouring of the silo cone shell 52.

[0026] The intelligent monitoring system 3 includes load sensors 31 and inclination sensors 32. The load sensors 31 are used to collect the suspension cable stress of the suspension cable net system 1 in real time, and the inclination sensors 32 are used to collect the verticality of the vertical rods and the settlement data of the platform of the formwork support system 2 in real time. During construction, the sensors are installed at key positions such as the stress points of the suspension cables, the bottom of the vertical rods of the support frames, and the key nodes of the platforms. Through the connection of the sensors and the monitoring equipment, the suspension cable stress and structural deformation data are obtained in real time and transmitted to the intelligent monitoring system 3 for analysis and processing. Construction personnel can view the monitoring data at any time to timely understand the stress and deformation of the structure, so as to adjust and optimize the construction process.

[0027] More specifically, please refer to Figure 1 , 4As shown, the intersection of the main cable 11 and the secondary cable 12 is provided with an aluminum alloy pressure buckle 13, which is used to fix the main cable 11 and the secondary cable 12 by an adjustable disconnection buckle, so as to control the sag error of the suspension cable net system 1 within ±50 mm.

[0028] One end of the adjustable disconnection buckle is connected with the aluminum alloy pressure buckle 13, and the other end is connected with other components (such as components connected with the lifting ring) of the suspension cable net system 1. When connected, the threaded part of the disconnection buckle is screwed into the connecting hole of the aluminum alloy pressure buckle 13, and then the length of the disconnection buckle is adjusted according to the needs, so that the suspension cable net system 1 reaches the appropriate pre-tightening force and sag. After the adjustment is completed, the nut of the disconnection buckle is tightened to ensure firm and reliable connection.

[0029] During installation and adjustment, the adjustment function of the adjustable disconnection buckle is used to accurately control the sag of the suspension cable net system 1. By measuring the actual sag of the suspension cable net and comparing it with the designed sag (controlled within ±50 mm), the adjustable disconnection buckle is appropriately lengthened or shortened according to the error. For example, if the actual sag is greater than the designed sag, the sag can be reduced by shortening the length of the disconnection buckle; on the contrary, if the actual sag is less than the designed sag, the sag can be increased by appropriately lengthening the length of the disconnection buckle, until the sag error is controlled within the allowable range.

[0030] Controlling the sag error of the suspension cable net system 1 within ±50 mm can ensure that the suspension cable net system 1 is installed according to the designed shape and size, thereby providing a stable formwork support foundation for the construction of the silo conical shell 52. This helps to improve the flatness and compactness of the silo conical shell concrete pouring, ensure the quality of the concrete structure, and reduce quality problems such as unevenness of the concrete surface and uneven thickness caused by excessive or insufficient sag of the suspension cable net.

[0031] In addition, accurate sag control makes the stress of the main cable 11 and the secondary cable 12 in the suspension cable net system 1 more uniform and reasonable. During construction, when the concrete pouring and other loads act on the formwork support system 2, the suspension cable net system 1 can effectively transfer the load to the lower ring beam 5212 of the silo body 51, avoiding the rupture of local cable due to excessive sag or the insufficient load bearing of the cable due to insufficient sag, thereby enhancing the stability of the entire suspension cable soft platform formwork structure and reducing the risk of structural instability.

[0032] More specifically, please refer to Figure 2 、 5 As shown, the suspension cable net system 1 also includes a hydraulic tensioning device 14 for grading pre-tightening of the main cable 11 and the secondary cable 12, and the initial pre-tightening force of the hydraulic tensioning device 14 is 15%-20% of the breaking tension.

[0033] The technical solution of the embodiment is that the hydraulic tensioning device 14 is installed at appropriate positions of the main cable 11 and the auxiliary cable 12. It is necessary to ensure that the hydraulic tensioning device 14 is firmly connected with the cable body, and a special connecting component (such as a clamp) is usually used to fixedly connect the hydraulic tensioning device 14 with the main cable 11 and the auxiliary cable 12. At the same time, it is necessary to ensure that the hydraulic system of the hydraulic tensioning device 14 is correctly connected with the tensioning equipment (such as an oil pump), so that the tensioning operation can be smoothly performed.

[0034] According to the design requirements, the initial pretightening force of the hydraulic tensioning device 14 is set to be 15%-20% of the breaking tension. This step needs to be accurately controlled by the operating system of the hydraulic tensioning device 14, and the pressure regulation function of the hydraulic system is used to make the main cable 11 and the auxiliary cable 12 reach the predetermined initial pretightening force in the tensioning process. When setting the initial pretightening force, the specifications and performance parameters of the cable body need to be referred to, to ensure that the pretightening force is within a reasonable range, which can ensure the stability and carrying capacity of the cable body, and will not cause excessive tensile damage to the cable body.

[0035] According to a certain grading procedure, the main cable 11 and the auxiliary cable 12 are pretightened respectively. The grading pretensioning can be performed in multiple stages, a certain amplitude of pretightening force is tensioned each time, and then the tensioning is paused, and the stress condition of the cable body and the deformation condition of the suspension cable net system 1 are checked and measured. According to the checking result, it is judged whether the pretightening force or the tensioning sequence needs to be adjusted. In the grading pretensioning process, the hydraulic tensioning device 14 accurately adjusts the pretightening force of the cable body by accurately controlling the flow and pressure of the hydraulic oil. At the same time, the pretightening force data and the corresponding deformation condition of each stage are recorded, to provide a reference for subsequent construction adjustment.

[0036] In the embodiment, the initial pretightening force is set to be 15%-20% of the breaking tension, and this pretightening force range can make the main cable 11 and the auxiliary cable 12 have a certain initial tension in the initial carrying stage, so that the suspension cable net system 1 is in a moderate tension state. In the construction process, when affected by external loads (such as concrete pouring load, wind load, etc.), the suspension cable net system 1 can better resist the deformation caused by the load, reduce the relaxation and shaking of the system under the load, and thus enhance the stability of the entire suspension cable net system.

[0037] In addition, the grading pretensioning can ensure that the main cable 11 and the auxiliary cable 12 can gradually adapt to the pretightening force at each stage, to avoid that the cable body is locally stressed unevenly or damaged due to one-time tensioning of a too large pretightening force. Through the grading pretensioning, the main cable 11 and the auxiliary cable 12 can work more coordinately, the overall stress of the suspension cable net system 1 is more uniform, the ability to resist external loads is improved, and the stability of the suspension cable net is further enhanced.

[0038] More specifically, in one preferred embodiment of the present application, the main cable 11 is a steel core wire rope with a diameter of 32 mm, the secondary cable 12 is a steel core wire rope with a diameter of 28 mm, and the grid spacing between the main cable 11 and the secondary cable 12 is 800 mm x 800 mm. The steel core wire rope is because it has high tensile strength and good flexibility, which can meet the performance requirements of the suspension cable net system 1 in terms of load bearing and deformation. According to the load size and structural design requirements of the silo cone shell construction, the diameters of the main cable 11 and the secondary cable 12 are determined to be 32 mm and 28 mm respectively. During the procurement process, the material and specifications of the wire rope need to be strictly inspected to ensure that they meet the design standards.

[0039] In addition, the grid spacing between the main cable and the secondary cable is set to 800 mm x 800 mm. This grid spacing is determined through engineering calculation and design experience, taking into account factors such as the size and shape of the silo cone shell and the load distribution that may be borne during construction. During installation, the main cable 11 and the secondary cable 12 are fixed by connecting them with aluminum alloy pressure buckles 13 and adjustable shackles, etc., according to the designed grid spacing, forming a regular grid structure. During installation, measuring tools are used to accurately measure the grid spacing to ensure that the size of each grid meets the design requirements, with an error control within the allowable range.

[0040] If the grid spacing is too small, although the load bearing capacity will be increased, the amount of material will also be greatly increased, which will increase the construction cost; while if the grid spacing is too large, the load bearing capacity may be insufficient, which cannot guarantee the safety of construction. The grid spacing of 800 mm x 800 mm is reasonably designed and calculated, which can achieve a good balance between load bearing capacity and material cost, which can meet the load requirements during construction, without causing material waste, and improves the utilization rate of materials.

[0041] More specifically, please refer to Figure 1 In one preferred embodiment of the present application, the full-support frame 22 includes vertical rods 221, floor rods 222, diagonal rod supports 223, and scissors supports 224, wherein: The vertical rods 221 are arranged at the intersection of the main cable 11 and the secondary cable 12, the floor rods 222 are arranged within the grid at the intersection of the main cable 11 and the secondary cable 12, the longitudinal and transverse spacing between the vertical rods 221 is 0.7-0.9 m, and the floor rods 222 are arranged along the direction of the main cable 11 and the secondary cable 12; the vertical rods 221 and the floor rods 222 are connected and installed by double buckles to form a first step horizontal rod, forming a starting frame, the vertical rods 221 extend into the main cable 11 and the secondary cable 12 and 300 mm below the floor rods 222, and expand symmetrically around the starting frame; The inclined rod brace 223 is arranged on the vertical rod 221 of the full-support frame 22 at the first step distance, the upper part of the inclined rod brace 223 is connected to the vertical rod 221, and the lower part of the inclined rod brace 223 is connected to the sweeping rod 222, so as to enhance the lateral stability and integrity of the support frame.

[0042] The scissors brace 224 includes horizontal scissors braces 2241 and vertical scissors braces 2242, and the horizontal scissors braces 2241 and the vertical scissors braces 2242 are extended to the upper ring beam 5211, the lower ring beam 5212, the conical shell side wall 521 and the conical shell top 522 and are tightly fixed to the concrete formwork surface, so as to form an integrated support system and enhance the stability and bearing capacity of the structure.

[0043] Specifically, the vertical rod 221 is arranged at the intersection of the main cable 11 and the auxiliary cable 12 and is extended into the main cable 11 and the auxiliary cable 12 and 300 mm below the sweeping rod 222, so that the support frame is closely combined with the suspension cable net system 1 and a stable starting point is formed. The reasonable control of the longitudinal and transverse spacing of the vertical rod 221 is 0.7-0.9 m, so that the support frame forms a uniform support point layout in the plane and can effectively resist various horizontal and vertical loads that may occur during construction. The sweeping rod 222 is arranged along the trend of the main cable 11 and the auxiliary cable 12, which further enhances the stability of the bottom of the support frame and prevents the lateral displacement and settlement of the vertical rod 221 under the action of the load, thereby improving the stability of the entire support structure.

[0044] The inclined rod brace 223 connects the vertical rod 221 and the sweeping rod 222 and provides additional inclined support for the support frame. This inclined support can effectively resist the bending moment and lateral deformation of the vertical rod 221 under the action of vertical load and lateral load, thereby enhancing the integrity and lateral stability stiffness of the support frame. During construction, when wind load or other horizontal load is encountered, the inclined rod brace can work cooperatively with the vertical rod and the sweeping rod to maintain the stable state of the support frame.

[0045] More specifically, referring to Figure 1 In a preferred embodiment of the present application, as shown in the drawing, three horizontal scissors braces 2241 are arranged, the middle one is arranged in the upper horizontal rod layer of the step distance where the lifting ring 5213 is located and is tightly fixed to the lower ring beam 5212, the upper one is arranged in the horizontal rod of the upper ring beam 5211 and is tightly fixed to the upper ring beam 5211, and the lower one is arranged in the upper horizontal rod layer of the second step distance of the full-support frame 22. The spacing of the horizontal scissors brace 2241 is not greater than 3.6 m, and the vertical scissors brace 2242 is arranged every 4 spans along the direction of the main cable 11.

[0046] Therefore, by setting the upper, middle and lower three horizontal shear braces 2241 and abutting against the upper ring beam 5211 and the lower ring beam 5212, the full-support frame 22 can form multiple stable support planes in the horizontal direction. The spacing of the horizontal shear braces 2241 is not greater than 3.6 m, and such spacing can effectively limit the deformation of the support frame in the horizontal direction and improve the ability of the support frame to resist horizontal load. During construction, when wind load or lateral pressure generated during concrete pouring is encountered, the horizontal shear braces 2241 can work together with other components to prevent the support frame from horizontal displacement and lateral overturning, thereby enhancing the stability of the entire support system.

[0047] The vertical shear braces 2242 are arranged every 4 spans along the direction of the main cable 11, which can enhance the stability and stiffness of the support frame in the vertical direction. The vertical shear braces 2242 are connected with the horizontal shear braces 2241 to form a spatial stable structure, so that the support frame can better resist compression and bending deformation caused by vertical load. During construction, the vertical shear braces 2242 can effectively transmit the load to the substructure to prevent local instability of the vertical rods and improve the overall load-carrying capacity and stability of the support system.

[0048] More specifically, in one preferred embodiment of the present application, the bottom of the vertical rod 221 is provided with a vertical rod dynamic leveling device, which includes a screw adjuster, a pipe piece pad and a laser level. The screw adjuster is used to adjust the height of the vertical rod, and the adjustment range is 10-50 mm. The pipe piece pad is installed at the bottom of the screw adjuster to adapt to the unevenness of the foundation ground and provide stable support. The laser level is used to monitor and calibrate the levelness of the vertical rod in real time. During installation, the pipe piece pad is placed on the foundation first, then the screw adjuster is installed at the bottom of the vertical rod and connected with the pipe piece pad. Finally, the laser level is set at a suitable position to accurately measure the levelness of the vertical rod.

[0049] During the installation of the vertical rod 221, the verticality of the vertical rod 221 is monitored in real time by the laser level. According to the measurement results of the laser level, the height of the vertical rod 221 is adjusted by rotating the screw adjuster, so that the vertical rod 221 reaches the design requirement of verticality. The pipe piece pad plays a role of buffering and adapting to the unevenness of the foundation during the adjustment of the screw adjuster, ensuring that the bottom of the vertical rod 221 can be stably supported on the foundation. During the entire erection process of the full-support frame 22, the verticality of the vertical rod 221 needs to be calibrated multiple times, especially after the erection of the support frame is completed and before the concrete is poured, to ensure that the vertical rod 221 always maintains a vertical state.

[0050] More specifically, please refer to Figure 1As shown, in one preferred embodiment of the present application, the size of the auxiliary scaffold board 21 is 3000mmx3000mm, and the edges of the auxiliary scaffold board 21 are pre-welded with connecting fasteners.

[0051] In this way, the construction personnel can quickly fix the auxiliary scaffold board 21 on the cable net system 1 or the vertical rod 221 without complicated connection operations, thereby saving installation and disassembly time and improving construction efficiency. For example, in the process of building a large-area operation platform, the larger size of the scaffold board and the convenient connection method can significantly reduce the labor and time cost required for erection.

[0052] The larger size reduces the number of splices required when erecting a large-area operation platform. This means that the construction personnel can complete the erection of the operation platform faster, thereby carrying out subsequent construction tasks faster and further improving the construction progress.

[0053] More specifically, in one preferred embodiment of the present application, the load sensor 31 has a range of 0-50kN. During installation, the load sensor 31 is installed at key stress points of the cable net system 1, such as the connection between the main cable 11 and the secondary cable 12, the connection between the lifting ring 5213 and the cable net system 1, etc. During installation, the sensor must be firmly connected to the cable body and connected to the data acquisition equipment. After installation is complete, the load sensor 31 is calibrated to ensure that its measurement accuracy is within the range. The calibration process usually includes applying a known standard tension and recording the output value of the sensor, and adjusting the parameters of the sensor to make its output consistent with the standard value.

[0054] During concrete pouring, as the concrete is continuously poured, the tension on the cable net system 1 gradually increases, and the load sensor 31 can monitor the change in tension in real time and feed back the data to the construction personnel, which helps the construction personnel to understand the stress state of the cable net system 1 in a timely manner and determine whether to adjust the construction schedule or take other measures. For example, if the tension is close to the upper limit of the range of the load sensor 31, the construction personnel can pause the concrete pouring and check the stress state of the cable net system to prevent safety accidents such as cable body rupture caused by excessive tension.

[0055] The accuracy of the inclination sensor 32 is ±0.1°. The inclination sensor 32 is installed at key parts of the formwork support system 2, such as the middle of the vertical rod 221, the horizontal rod of the full-support frame 22, and the support point of the auxiliary scaffold board 21. During installation, the installation surface of the sensor must be tightly fitted to the surface of the measured object, and connected to the data acquisition equipment. After installation is complete, the inclination sensor 32 is calibrated, which usually includes horizontal position calibration and vertical position calibration to ensure the accuracy of the measured angle.

[0056] During the construction process, the verticality of the vertical rod 221 and the settlement amount of the platform are important indicators for evaluating the stability of the formwork support system 2. The inclination sensor 32 can monitor the changes of these parameters in real time, providing accurate data support for the construction personnel. For example, when the verticality deviation of the vertical rod 221 exceeds the allowed range or the platform experiences uneven settlement, the construction personnel can adjust the position of the vertical rod 221 or reinforce the support system in a timely manner according to the data of the inclination sensor 32, ensuring the safety of the construction process.

[0057] The embodiment of the present application also provides a construction method of the suspension cable soft platform formwork structure for the construction of the silo cone shell, and the construction method comprises the following steps: Step one: during the pouring construction of the silo body 51, when the silo wall of the silo body 51 is close to the position of the silo cone shell 52 at the top, the cantilever scaffold sleeve is pre-buried at this position; Step two: continue pouring the silo body 51, and when the strength of the silo wall of the silo body 51 with the pre-buried cantilever scaffold sleeve meets the construction requirements, double-row cantilever scaffolds 4 are erected on the inside and outside of the silo body 51 by using the cantilever scaffold sleeves; Step three: by using the cantilever scaffold 4, workers bind and construct the reinforcement of the silo body 51, the lower ring beam 5212 and the reinforcement of the silo cone shell 52 according to the design requirements of the structure nodes; Step four: the position of the hanging ring 5213 is pre-played by using the BIM model, and the main cable hanging ring and the auxiliary cable hanging ring are arranged in a ring shape on the inner wall of the lower ring beam 5212 by using the laser positioning instrument, and the main cable hanging ring and the auxiliary cable hanging ring are both welded with the structural reinforcement, wherein the main cable hanging ring is in the upper layer and the auxiliary cable hanging ring is in the lower layer; Step five: the lower ring beam formwork is erected, and the top of the silo body 51 and the lower ring beam 5212 are poured with concrete; Step six: when the strength of the cone shell side wall 521 and the lower ring beam 5212 meets the construction requirements, the main cable 11 and the auxiliary cable 12 are hung on the main cable hanging ring and the auxiliary cable hanging ring respectively, the cable ends of the main cable 11 and the auxiliary cable 12 are steel wire rope buckles, which are connected with the corresponding hanging ring 5213 by unloading, the main cable 11 and the auxiliary cable 12 are divided into two layers and the rope joints are closely fitted, the joints are fixed by using aluminum alloy buckles 13, and finally the orthogonal cable net is formed, the main cable 11 and the auxiliary cable 12 bear the force together, and the design pre-tightening force is tensioned for three times, and the relaxation rate is monitored for 24 hours after each tensioning, wherein the main cable 11 bearing the force is arranged in the upper layer, and the design pre-tightening force is 30%, 60% and 100% respectively; Step seven: a steel pipe frame is laid on the curved surface of the orthogonal cable net, the steel pipe frame is assembled by a plurality of steel pipe meshes, auxiliary footboards 21 are fixed on the steel pipe meshes, and when the steel pipe frame is laid, safety nets are fully laid on the steel pipe frame, and the edges of the safety nets are fixed to the rope hanging rings; Step eight: full-support frame 22 for supporting the cone shell side wall 521 and the cone shell top 522 template is erected on the steel pipe rack with the aid of auxiliary scaffold board 21, and after the full-support frame 22 is erected, the cone shell side wall template is erected under the support of the full-support frame 22; Step nine: after the completion of the erection of the shell side wall template, the upper ring beam template is erected; since the orthogonal cable net is elongated under the action of load, vertical increment is generated, therefore, when the full-support frame 22 is erected to the bottom position of the upper ring beam 5211, the height of the full-support frame 22 is increased; then the cone shell top template and the steel bar binding are carried out, and the cone shell top beam is supported on the upper ring beam 5211; finally, the height of the vertical rod 221 is calibrated by the intelligent monitoring system 3, and the cumulative adjustment amount of the vertical rod 221 is less than or equal to 5 mm; Step ten: the cone shell 52 of the silo is poured with concrete in four times, and the height of each section is less than or equal to 1.5 m, and low-slump concrete is used to compact from bottom to top with the adhesion type vibrator, the slump of the low-slump concrete is 140-160 mm, and during the concrete pouring, the settlement amount is recorded by the intelligent monitoring system 3 every day, wherein: The first pouring is carried out on the remaining concrete of the lower ring beam 5212 and the first inclined plate of the lower part of the cone shell side wall 521, and the third pouring is carried out after the strength reaches 80% or above; The second pouring is carried out on the remaining side wall concrete of the cone shell, and the fourth pouring is carried out after the strength reaches 80% or above; The third pouring is carried out on the top concrete of the cone shell side wall 521 and the concrete of the upper ring beam 5211, and the main beam nest of the cone shell top 522 is reserved on the upper ring beam 5211 during the pouring, and the fourth pouring is carried out after the strength reaches 80% or above; The fourth pouring is carried out on the concrete of the cone shell top beam and the concrete of the cone shell top platform, and the overall pouring is completed; Step eleven: after the concrete strength reaches 100%, the template and the orthogonal cable net are removed, and the template is removed according to the order of removing the non-bearing template first and removing the bearing template last.

[0058] Although the present disclosure is disclosed as above, the protection scope of the present disclosure is not limited to this. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present disclosure, and these changes and modifications will fall within the protection scope of the present disclosure.

Claims

1. A cable-suspended soft platform formwork structure for silo cone construction, used for connecting a silo cone (52) to the upper surface of a silo body (51), wherein the silo cone (52) comprises cone side walls (521) and a cone top (522), characterized in that: The cable-suspended soft platform formwork structure comprises: A suspension net system (1) is connected to the rings (5213) uniformly distributed in an annular manner on the lower ring beam (5212), and the suspension net system (1) is arranged to protrude downward. The suspension net system (1) includes main cables (11) and auxiliary cables (12) arranged orthogonally, wherein the main cables (11) are radially distributed along the top of the silo body (51), and the auxiliary cables (12) are arranged in a closed annular manner along the top of the silo body (51); A formwork support system (2) comprises an auxiliary scaffolding board (21) arranged inside the suspension net system (1) and a full-height support frame (22) arranged on the auxiliary scaffolding board (21), wherein the upper portion of the full-height support frame (22) is a truncated cone structure constituting the silo cone shell (52), the arc surface of the truncated cone structure is provided with a cone shell side wall mold (23), and the upper bottom surface of the truncated cone structure is provided with a cone shell silo top mold (24); The intelligent monitoring system (3) includes a load sensor (31) and an inclination sensor (32), wherein the load sensor (31) is used to collect the cable stress of the cable net system (1) in real time, and the inclination sensor (32) is used to collect the verticality of the upright poles and the platform settlement data of the formwork support system (2) in real time.

2. The cable-suspended soft platform formwork structure for silo cone shell construction according to claim 1 is characterized in that: An aluminum alloy buckle (13) is provided at the intersection of the main cable (11) and the auxiliary cable (12), and the aluminum alloy buckle (13) uses an adjustable shackle to fix the main cable (11) and the auxiliary cable (12), so that the sag error of the suspension net system (1) is controlled within ±50 mm.

3. The cable-suspended soft platform formwork structure for silo cone shell construction according to claim 1 is characterized in that: The suspension net system (1) further comprises a hydraulic tensioning device (14) for performing graded pre-tightening on the main cable (11) and the auxiliary cable (12), wherein the initial pre-tightening force of the hydraulic tensioning device (14) is 15% to 20% of the breaking tension.

4. The cable-suspended soft platform formwork structure for silo cone shell construction according to claim 1 is characterized in that: The main rope (11) is a steel core wire rope with a diameter of 32 mm, the auxiliary rope (12) is a steel core wire rope with a diameter of 28 mm, and the grid spacing between the main rope (11) and the auxiliary rope (12) is 800 mm×800 mm.

5. The cable-suspended soft platform formwork structure for silo cone shell construction according to any one of claims 1 to 4, characterized in that: The full-floor support frame (22) comprises a vertical pole (221) arranged at the intersection of the main cable (11) and the auxiliary cable (12), a sweeping pole (222) arranged in the grid at the intersection of the main cable (11) and the auxiliary cable (12), a diagonal pole support (223) and a scissor support (224), wherein the vertical and horizontal spacing between the vertical poles (221) is 0.7-0.9 m, and the sweeping pole (222) is arranged along the direction of the main cable (11) and the auxiliary cable (12); The vertical pole (221) and the sweeping pole (222) are connected to the first horizontal pole by double fasteners to form a starting frame. The vertical pole (221) extends 300 mm below the main rope (11), the auxiliary rope (12) and the sweeping pole (222), and is symmetrically extended to all sides with the starting frame as the starting point. The oblique rod support (223) is added to the vertical rod (221) of the first step of the full-floor support frame (22), the upper part of the oblique rod support (223) is connected to the vertical rod (221), and the lower part of the oblique rod support (223) is connected to the sweeping rod (222); The scissors struts (224) include horizontal scissors struts (2241) and vertical scissors struts (2242), and both the horizontal scissors struts (2241) and the vertical scissors struts (2242) extend to the upper ring beam (5211), the lower ring beam (5212), the cone shell side wall (521) and the cone shell bin top (522), and are tightly pressed against the concrete formwork surface.

6. The cable-suspended soft platform formwork structure for silo cone shell construction according to claim 5 is characterized in that: The horizontal scissors brace (2241) is provided in three layers, namely, upper, middle and lower layers. The middle layer of the horizontal scissors brace (2241) is provided in the upper horizontal rod layer of the step where the hanging ring (5213) is located and is pressed against the lower ring beam (5212). The upper layer of the horizontal scissors brace (2241) is provided in the horizontal rod layer of the upper ring beam (5211) and is pressed against the upper ring beam (5211). The lower layer of the horizontal scissors brace (2241) is provided in the upper horizontal rod layer of the second step of the full-height support frame (22). The spacing between the horizontal scissor braces (2241) is no greater than 3.6 m, and the vertical scissor braces (2242) are provided every four spans along the direction of the main cable (11).

7. The cable-suspended soft platform formwork structure for silo cone shell construction according to claim 3 is characterized by: A vertical pole dynamic leveling device is provided at the bottom of the vertical pole (221), and the vertical pole dynamic leveling device comprises a screw adjuster, a pipe segment spacer, and a laser level. The adjustment range of the screw adjuster is 10-50 mm, and the laser level is used to calibrate the horizontality of the vertical pole (221) in real time.

8. The cable-suspended soft platform formwork structure for silo cone shell construction according to claim 1 is characterized by: The size of the auxiliary scaffolding board (21) is 3000 mm×3000 mm, and the edges of the auxiliary scaffolding board (21) are pre-welded with connecting fasteners.

9. The cable-suspended soft platform formwork structure for silo cone shell construction according to claim 5 is characterized in that: The load sensor (31) has a measuring range of 0-50 kN, and the inclination sensor (32) has an accuracy of ±0.1°.

10. A construction method for a cable-suspended soft platform formwork structure for silo cone shell construction, based on the cable-suspended soft platform formwork structure for silo cone shell construction according to any one of claims 1 to 9, characterized in that: The construction method comprises the steps of: Step 1: During the pouring construction of the silo body (51), when the silo wall of the silo body (51) is poured to the position of the silo cone shell (52) near the top, the cantilever scaffolding sleeve is pre-buried at this position; Step 2: Continue pouring the silo body (51). When the wall strength of the silo body (51) pre-buried with the cantilever scaffolding sleeve reaches the construction requirement, use the cantilever scaffolding sleeve to set up double rows of cantilever scaffolding inside and outside the silo body (51); Step 3: Using the cantilever scaffolding (4), workers tie the steel bars of the silo body (51), the lower ring beam (5212) and the steel bars of the silo cone shell (52) according to the design requirements of the structural nodes; Step 4: Use the BIM model to preview the position of the lifting ring (5213), and use a laser positioning device to arrange pre-buried main cable lifting rings and auxiliary cable lifting rings in a circular manner on the inner wall of the lower ring beam (5212). The pre-buried main cable lifting rings and auxiliary cable lifting rings are welded to the structural steel bars, wherein the main cable lifting rings are on the upper layer and the auxiliary cable lifting rings are on the lower layer; Step 5: Support the lower ring beam formwork and pour concrete on the top of the silo body (51) and the lower ring beam (5212); Step 6: When the strength of the cone shell side wall (521) and the lower ring beam (5212) meets the construction requirements, the main cable (11) and the auxiliary cable (12) are hung on the main cable eye and the auxiliary cable eye respectively. The ends of the main cable (11) and the auxiliary cable (12) are both wire rope buckles, which are connected to the corresponding eye (5213) through a shackle. The main cable (11) and the auxiliary cable (12) are divided into two layers, the upper and lower layers, and the rope knots are tightly fitted. The knots are fixed with aluminum alloy buckles (13), and finally an orthogonal cable net is formed. The main cable (11) and the auxiliary cable (12) are stressed together. The preload is designed in three times. After each tensioning, the tension is left to stand for 24 hours to monitor the relaxation rate. The main cable (11) that is mainly stressed is set in the upper layer, and the preload is designed to be 30%, 60%, and 100% respectively. Step 7: Lay a steel pipe frame on the curved surface of the orthogonal cable net, the steel pipe frame being assembled from a plurality of steel pipe meshes; an auxiliary scaffolding board (21) is fixed on the steel pipe meshes; after the steel pipe frame is laid, a safety net is fully laid on the steel pipe frame, and the edge of the safety net is fixed to the rope ring; Step eight: using auxiliary scaffolding (21) to set up a full-height support frame (22) on the steel pipe frame for supporting the cone shell side wall (521) and the cone shell silo top (522) template. After the full-height support frame (22) is built, the cone shell side wall template is supported by the full-height support frame (22); Step 9: After the shell side wall formwork is completed, the upper ring beam formwork is then supported; since the orthogonal cable net stretches under the load, generating a vertical increment, the full-height support frame (22) is increased when it is erected to the bottom position of the upper ring beam (5211); then the cone shell silo top formwork and steel bar binding are performed, and the cone shell silo top beam is supported on the upper ring beam (5211); finally, the height of the vertical pole (221) is calibrated through the intelligent monitoring system (3), and the cumulative adjustment amount of the vertical pole (221) is ≤5mm; Step 10: The silo cone shell (52) is concreted in four steps, with each step being ≤1.5m high, and compacted from bottom to top using low-slump concrete with an attached vibrator. The slump of the low-slump concrete is 140-160mm. During the concrete pouring, the settlement is recorded daily by the intelligent monitoring system (3), wherein: The remaining concrete of the lower ring beam (5212) and the concrete of the lower first inclined plate length of the cone shell side wall (521) are poured for the first time, and the second pouring is performed after the strength reaches 80% or above; The second pouring of the remaining side wall concrete of the cone shell, and the third pouring after the strength reaches 80% or above; The third pouring is to pour the top concrete of the cone shell side wall (521) and the concrete of the upper ring beam (5211). During the pouring, a main beam socket of the cone shell silo top (522) is reserved on the upper ring beam (5211). The fourth pouring is performed after the strength reaches 80% or above. The fourth pouring of the concrete for the cone shell silo top beam and the cone shell silo top platform slab completes the overall pouring; Step 11: When the concrete strength reaches 100%, the formwork and orthogonal cable net are removed. The formwork is removed in the order of the rear support first and the front support last. The non-load-bearing formwork is removed first, followed by the load-bearing formwork and the full-floor support frame (22).

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