871results about "Extraordinary structures" patented technology

A prefabricated modular stairwell and elevator shaft system is described. The system can include an end panel, a first side panel, a second elevator shaft panel, a second side panel, and a first elevator shaft panel. The prefabricated modular stairwell and elevator shaft system can also include stairwell components (including one or more treads, one or more landings, and one or more handrails), one or more counterweight rails, one or more counterweight brackets, a stairwell door, and a stairwell door frame.

The invention relates to a support-free construction method for single-circle pull-down of a radial multi-support cable-supported grid structure. The support-free construction method comprises the steps that firstly, a cable net is pulled and lifted till radial cables are anchored to a circumferential supporting structure; then, a single-circle pull-down tool cable is installed and tensioned at the annular cable clamp, and the annular cable is made to be at the designed elevation; then, the radial beams, the supporting rods and the radial cable clamps are hoisted one by one in blocks, the tool cables are synchronously adjusted and pulled down, and non-closure section first-batch ring beams which are arranged in a staggered and spaced mode are installed in a running water mode; and then the pull-down tool cable is released and removed, and the non-closure section rear batch ring beam and the closure section ring beam are sequentially installed. According to the method, support-free construction of the radial multi-support type cable-supported grid structure is achieved through the single-circle pull-down tool cable, the complex multi-circle pull-down procedure is avoided, the elevation of the annular cable is convenient to adjust and control, the cost of construction measures is reduced, single-truss hoisting is stable, radial cable clamps are convenient to install, and the design requirement that the radial prestress of a lower cable net is independently balanced by a circumferential supporting structure is met.

The invention discloses a construction method for an internal bent frame type structure frame body of a wind tunnel flow channel diffusion section. The construction method comprises the steps that P1, structural design is conducted on an inner steel formwork unit and a profile steel structure supporting frame unit; p2, after being machined, the inner steel formwork unit and the profile steel structure supporting frame unit are inspected to be qualified and conveyed to a construction site; p3, on-site positioning and paying-off of all the section sections of the inner steel formwork units are conducted; and P4, positioning installation of the inner steel formwork unit and the profile steel structure supporting frame unit is conducted, before installation, a BIM engineer makes installation animation demonstration through an inner steel formwork BIM model, visual disclosure is conducted on field management personnel and workers, and the workers conduct installation of an inner formwork supporting system according to the sequence of animation demonstration. According to the method, the wind tunnel flow channel diffusion section is gradually changed from a polygonal shape to a square shape in the horizontal direction, the construction problem of an ultra-large wind tunnel circular-to-square diffusion section is effectively solved, an internal mold supporting system meeting the construction precision requirement can be built by applying the method, and smooth construction is guaranteed.

The invention discloses an inhaul cable based on an optical fiber technology and a cable force measuring method thereof, and the method comprises the steps: obtaining the monitoring data and state data of the inhaul cable, carrying out the temperature compensation of the monitoring data, obtaining a temperature compensation wavelength, correcting the temperature compensation wavelength, obtaining a first correction wavelength, correcting the first correction wavelength, obtaining a second correction wavelength, and obtaining the cable force of the inhaul cable. Determining a first inhaul cable force according to the second correction wavelength, constructing an inhaul cable force measurement model, optimizing the inhaul cable force measurement model according to the cable force error, and inputting monitoring data and state data of a to-be-measured inhaul cable into the optimized inhaul cable force measurement model to obtain a cable force measurement result. The inhaul cable based on the optical fiber technology is installed on a structure to obtain light wave signals, the light signals are processed, the cable force of the inhaul cable is calculated, and the cable force of the inhaul cable is measured in the using process of the inhaul cable based on the optical fiber technology.

The invention discloses a steel-concrete combined containment connection node, and relates to the technical field of nuclear power, a steel containment cylinder is embedded into concrete in a prestressed concrete containment cylinder, the steel containment cylinder is provided with a stiffening rib ring plate, and longitudinal prestressed reinforcements in the prestressed concrete containment cylinder are connected with the stiffening rib ring plate; the longitudinal prestressed reinforcements are tensioned at the bottom ring corridor of the prestressed concrete containment cylinder to form a tensioning corridor; and circumferential prestressed tendons are also arranged in the concrete of the prestressed concrete containment cylinder, and are tensioned at the buttress columns. Through the combined action of the stiffening ribs on the steel containment and the prestressed tendons in the concrete containment, the overall rigidity of the containment is enhanced, and the integrity of the containment is guaranteed under the condition that an accident occurs.

A frame truss made of two walls and a roof structure. Each of the two walls have an outer and inner chord. The outer and inner chords of each respective wall are not parallel, but the inner chords of the two walls are parallel to each other. The arrangement of the inner and outer chords of each wall creates an exterior overhang with respect to the ground. Each of the walls converge at their bases and are attached at their bases to a plate. The roof structure attaches to the top of each of the walls and spans between them creating a frame that can be assembled in conjunction with similar frames to construct a building system.

The utility model discloses a novel air rib type inflatable membrane structure which comprises a main body structure formed by combining a plurality of independent air rib inflatable columns side by side from front to back, a grid drawstring structure is laid outside each air rib inflatable column, and each grid drawstring structure is composed of an axial drawstring, an annular drawstring and an inclined drawstring. The grid drawstring structure is provided with connection fixing points on the front side and the rear side of the air rib inflation columns, and the adjacent air rib inflation columns are connected through the connection fixing points. The limitation of the tensile strength of the PVC film material is broken through through the inflatable column external constraint drawstring net, and a mixed structure form of internal air pressure support and external drawstring net pulling is formed, so that the structure form is more stable, and the load resisting capacity is high; the air rib inflatable column structure of the external constraint drawstring net relieves the local stress concentration of the inner arc generated by the stress characteristic of the arc arch column, and the safety of the whole structure is effectively improved. And a modularized assembly structure form is adopted, so that disassembly, assembly and movement are convenient.

Disclosed in the present invention is a spatial three-dimensional suspended corridor, comprising a suspended corridor that connects indoor floor passageways, wherein diagrid columns are provided on all edge portions of the indoor floor passageways; the suspended corridor comprises several fixed segments and several bridge deck segments from bottom to top; and the fixed segments or corner segments are all connected to the corresponding bridge deck segments by means of node connecting components. In the present invention, by means of some implementable tests and on the basis of having a preliminary understanding of the stress performance of a corridor structure, a corridor simulation model is also established, parameters of the model are continuously optimized for repeated debugging, preliminary stress performance calculations are then performed and compared with results of some previously conducted tests, and if results are quite similar to the test results, this proves that the model is relatively optimal, that is, an optimized model is obtained, and then this model is used to analyze other more complex performances of the corridor. The optimization objective of the present invention is to make the structure and stress of an aerial corridor safer, more reliable and more comfortable.

The heat preservation film structure convenient to splice comprises a heat preservation film, a mounting plate and an inserting plate, the mounting plate is fixedly arranged at the middle end of the left side in the heat preservation film, and the inserting plate is fixedly arranged at the middle end of the right side outside the heat preservation film. Through the design of a locking function, the state after the inserting plate and the mounting plate are combined can be locked, then the combined state after a large number of heat preservation films are spliced is locked, the phenomenon that the combined heat preservation films are pulled by external force and fall apart is avoided, and it can be known that by means of the device, the heat preservation films can be conveniently assembled and disassembled, and the service life of the heat preservation films is prolonged. And the stability of the spliced and combined thermal insulation film is improved. Through the design of an unlocking function, a worker only needs to rotate the positioning pin to enable the positioning pin to be separated from the connecting strips, then the two connecting strips, the connecting rod and the check block are in a back-to-back displacement state, the state that the check block limits the wedge-shaped block is relieved, and the worker can conveniently take the inserting plate out of the mounting plate.

The utility model relates to the technical field of building design, in particular to a retractable roof system which comprises an arched roof and a retractable roof, a circular opening is formed in the center of the arched roof, and the retractable roof is arranged on the arched roof and composed of a plurality of petal-shaped roof pieces. The roof piece can move in the radial direction of the arched roof so as to be switched between an open state and a closed state, and in the open state, the circular opening is completely exposed; and in the closed state, the retractable roof completely covers the circular opening to form a closed dome structure. According to the opening and closing roof system, the roof pieces are driven to move in the radial direction along the arched roof so as to be switched between the opening state and the closing state, the indoor space and the outdoor space of a venue can be switched, natural conditions are fully utilized, and the opening and closing roof system has the advantages of being novel in opening and closing mode, reasonable in structural stress, convenient to drive and control and the like. And the structural form of the retractable roof system is enriched.

The invention belongs to the technical field of energy dissipation and shock absorption of super high-rise structures, and particularly relates to an assembly type multi-stage energy dissipation outrigger system adopting eccentric bracers.The outrigger system comprises a lower chord, two upper chords and two self-resetting energy dissipation bracers.The two upper chords are provided with a bent shear type energy dissipation coupling beam therebetween and detachably connected with the bent shear type energy dissipation coupling beam; the other ends of the two sections of upper chords are respectively in semi-rigid connection with the core tube and the frame column, and two ends of the lower chord are respectively detachably connected with the core tube and the frame column; corner type energy consumption connecting devices are arranged at the upper parts and the lower parts of connecting joints of the two sections of upper chords and the corresponding core tube and the frame column; one end of the self-resetting energy dissipation support is detachably connected to the upper chord, and the other end of the self-resetting energy dissipation support is detachably connected to a node formed by the lower chord and the core tube or the frame column; the yield load of the bending shear type energy dissipation coupling beam and the yield load of the self-resetting energy dissipation support are larger than the yield load of the corner type energy dissipation connecting device. By means of the system, replacement of energy consumption parts and multi-stage damping can be achieved.

An intermediary support structure that includes a linear or rotational actuator to move the single display tile from a first position in a first plane along a predetermined path to a second position in the first plane. The first position is a loading position of the single display tile in the tiled display and the second position is a position in which the single display tile lies when installed in its operative position in the tiled display. When the single display tile is located in the first position, there is a distance between the loading position and the operative position, the linear or rotational actuator is configured so that the distance becomes smaller as the single display tile is moved along the predetermined path towards the second position. The linear or rotational actuator is accessible and remains accessible until an adjacent display tile is covering an access to the actuator.

The air film structure with the cooling function comprises an air inflation film layer, a heat insulation layer and an air supply device, an air film space is formed between the air inflation film layer and the ground, and the heat insulation layer is arranged on the air inflation film layer; the heat insulation layer comprises a plurality of air rib pipe sections which are sequentially arranged on the air inflation film layer. One or at least two communicated air rib pipe sections form an air duct, so that a plurality of air ducts are formed on the heat insulation layer; each air duct is provided with an air inlet and an air outlet, the air inlets are connected with the air supply device, and the air ducts are used for receiving cold air of the air supply device so as to mix the cold air with heat of the inflatable film layer to cool the air film space; and the air outlet is used for discharging cold air and heat mixed in the air duct to the outside. According to the air film structure, cold air and heat of the air inflation film layer are mixed to cool the air film space through cooperation of the multiple air channels, the air inlets in the air channels, the air outlets in the air channels and the air supply device, and therefore the safety and reliability of the air film structure are improved.

The utility model discloses a waterproof structure for an abutted seam of a wavy PTFE (Polytetrafluoroethylene) membrane structure. The waterproof structure comprises a waterproof structure at the abutted seam which is concave upwards and convex downwards and a waterproof structure at the abutted seam which is concave upwards and convex downwards, wherein the waterproof structure at the upper-concave and lower-convex abutted seam and the waterproof structure at the upper-concave and lower-convex abutted seam are connected with the upper-layer fixing frame and the lower-layer fixing frame through the supporting frame, the waterproof piece is installed on the supporting frame, and the two ends of the waterproof piece are connected with the upper-layer fixing frame and the lower-layer fixing frame through the sealing assembly and the decoration assembly respectively. The waterproof construction steps of the abutted seam position are simplified, the waterproof component is directly connected with the fixing frame, the stability of the waterproof structure is guaranteed, the waterproof performance is further guaranteed, the first supporting frame and the second supporting frame are arranged, reliable supporting points are provided for the waterproof plate, and the installation quality of the waterproof plate is further guaranteed.

The invention relates to a large-span steel structure corridor sliding assembly construction process, and aims to solve the problems of high difficulty, low efficiency, difficulty in dismounting an auxiliary structure and the like in large-span steel structure corridor construction by a traditional hoisting method. According to the process, mounting of a longitudinal triangular truss, a middle shaft small truss and an outrigger is completed by assembling a door-type steel truss column truss on the ground or a roof, mounting a sliding rail and assembling a truss beam and the door-type steel truss. And the assembled door-type steel truss combination slides, the steps are repeated on the two sides, and finally the two-large-area steel structure corridor formed by assembling seven door-type steel trusses is formed. According to the process, the Z-shaped sliding rails and the detachable rollers are adopted, so that all mounting auxiliary parts can be independently separated from the truss structure after the structure is mounted, the construction efficiency is improved, the cost is reduced, and the aesthetic property and the functionality of the structure are ensured. The technology is suitable for rapid and efficient construction of the large-span steel structure corridor and has remarkable economic benefits and social benefits.

The invention relates to a double-column double-layer double-overhanging assembly type elevated station structure and a combination method thereof.The elevated station structure comprises two pier columns, a station hall layer overhanging cover beam, two stand columns, a platform plate lower layer overhanging cover beam, platform layer pier columns and platform prefabricated beams; the two station hall layer cantilever cover beams which are in mirror image with each other are connected through a first node and are supported on the pier columns; the stand columns are aligned with the pier columns and supported on a cantilever cover beam of a station hall layer. The two platform plate lower-layer overhanging cover beams which are in mirror image with each other are connected through a second node and are supported on the stand columns; the platform layer pier columns are supported on the platform plate lower layer overhanging cover beam. The platform prefabricated beam is supported on the platform layer pier columns, and the burden of the overhanging cover beam of the station hall layer is reduced in a double-layer overhanging mode. The problems that an existing elevated station structure is poor in safety redundancy, large in component dead weight and poor in maintainability are solved.

The utility model belongs to the technical field of gas film buildings, and particularly relates to a gas film structure capable of effectively reducing sound focusing in a gas film, which comprises a gas film, a steel wire rope, a sound-absorbing plate and a reinforcing rope, a plurality of hanging rings are arranged at the top of the gas film, one end of the steel wire rope is connected with the hanging rings in a hanging manner, and the other end of the steel wire rope is connected with the sound-absorbing plate in a hanging manner. The adjacent sound absorption plates are arranged in an up-down staggered mode, and the reinforcing rope is connected with a plurality of steel wire ropes in a tying and hanging mode. The plurality of sound-absorbing plates which are arranged in an up-down staggered manner can enable part of sound waves reflected by the upper sound-absorbing plate to be reflected by the lower sound-absorbing plate again, so that the sound waves are absorbed for multiple times, and the sound attenuation effect is effectively improved; a plurality of steel wire ropes can be connected into a whole through the reinforcing ropes, and the hanging stability of the acoustic board is improved.

The invention relates to the technical field of pressure-bearing buildings, in particular to an embedded pressurizing building construction method and an embedded pressurizing building. The method comprises the following steps that a decorative layer, a non-bearing wall body and inner doors and windows in an original building are dismantled; an embedded frame and an external equipment room are arranged in an original building; a pressure bearing structure is laid on the embedded frame; a sealing measure is arranged between the pressure-bearing structure and the embedded frame to form a sealed space; pressurizing the sealed space through the external equipment room, and performing first air tightness inspection on the sealed space; after the first air tightness inspection is qualified, restoring the decorative layer of the original building in the sealed space; the sealed space is pressurized through the external equipment room, and secondary air tightness inspection is conducted on the sealed space; and after the air tightness inspection is qualified for the second time, the built-in pressurizing building construction is completed. The lightweight structural design is adopted, and the problem of overload caused by the fact that an existing steel structure building serves as an embedded building is solved.

The invention discloses a full assembly type modular shear wall core tube structure system and a construction method, a core tube area is divided into a core area and an edge area, the core area is defined by a first shear wall module and a second shear wall module, and the edge area is defined by a third shear wall module; the three shear wall modules comprise shear walls and steel columns, each shear wall is formed by vertically splicing three wall bodies, the height of each of the three wall bodies does not exceed one third of the floor height, and the width of each of the three wall bodies can be controlled, so that the size of a single shear wall is greatly reduced, and the transportation and hoisting cost is reduced; a large number of steel bar binding does not exist between the wall bodies, stable connection can be achieved through the connecting plates and the bolts, the construction efficiency is improved to a great extent, and the construction quality is guaranteed; main body components are prefabricated in a factory, and most of manufacturing work such as welding is completed in advance, so that the mounting efficiency is greatly improved, and the construction of the core tube is very convenient and rapid.

The invention relates to a full-life-cycle indoor variable space building system. The full-life-cycle indoor variable space building system comprises a novel structure system and a building space layout. The novel structural system comprises a core tube, steel-concrete composite structural floors are connected to the two sides of the core tube, each steel-concrete composite structural floor is provided with a floor structural unit and a hidden beam frame for supporting the floor structural unit, the hidden beam frames and the floor structural units form an integrated structure by pouring concrete, and the hidden beam frames are connected with the core tube. The hidden beam frame is connected with a plurality of frame supporting columns, and the frame supporting columns are separated from the outer wall and the separating wall. The building space layout comprises the steps that a water utilization space is centrally arranged on one side of a living space, a large-space non-water utilization space is arranged on the other side of the living space, a vestibule backcourtyard and an equipment platform are arranged on the outer side of the outer wall of the centralized water utilization space, and a shared facility tube well is arranged. According to the invention, global variation of the living room space, the water utilization space and the balcony space in the whole life cycle of families and residences is realized.

The invention relates to a compressed air storage cavern structure which comprises a drainage layer, a sprayed concrete layer, a reinforced concrete lining layer, a sliding layer and a sealing layer which are sequentially arranged in the direction from outside to inside, and a space used for storing compressed air is formed in the inner side of the sealing layer. Partition walls are arranged in the space on the inner side of the sealing layer to divide the space on the inner side of the sealing layer into a plurality of cavities, balance pipelines are embedded in the partition walls to communicate the adjacent cavities, electric control valves are arranged on the balance pipelines to control connection and disconnection of the balance pipelines, and an air pressure detection element is arranged in each cavity. The compressed air storage cavern structure is high in pressure bearing capacity and high in stability.

The utility model provides a membrane drawing node for a rigid membrane valley, which comprises a steel pipe, a stiffening plate arranged on the steel pipe, a base arranged at the upper end of the stiffening plate, and angle steel connected with a fixing bolt A and fixed on the upper end face of the base through the fixing bolt A; the pressing plate is connected with the fixing bolt B and is connected to the angle steel through the fixing bolt B; the main film is arranged at the position between the pressing plates; the heat sealing reinforcing film is arranged on the upper end surfaces of the main films and is used for connecting the two main films in a heat sealing manner; the arc-shaped top edge is arranged at the upper end of the pressing plate, forms an arc-shaped structure and is used for jacking a main film, and the film fixing device has the advantages that the film can be fixed, the application range is wide, and the film fixing device can adapt to different tensile forces.

The utility model discloses a wave-shaped PTFE (Polytetrafluoroethylene) membrane structure for a building facade. The wave-shaped PTFE membrane structure comprises wave-shaped PTFE membrane structure units, the number of the wave-shaped PTFE film structure units is multiple, and the multiple wave-shaped PTFE film structure units are installed on the outer vertical face of a building in a multi-layer structure. The wave-shaped PTFE membrane structure units are of arc-shaped structures, and the wave-shaped PTFE membrane structure units on the same layer are sequentially connected to form a wave structure; and the wavy PTFE membrane structure units and the wavy PTFE membrane structure units on the adjacent layers are arranged in a staggered manner. The PTFE membrane structure is designed into a multi-layer structure, each layer of PTFE membrane structure is designed into a wave-shaped structure, the adjacent layers of wave-shaped PTFE membrane structures are arranged in a staggered mode, the visual effect of abutted seams is weakened in a wave-shaped modeling mode at the abutted seam positions of the PTFE membrane structures, modeling embodiment is highlighted, and aesthetic requirements are better met.

The invention discloses a construction method of a curved-surface cylindrical cable-membrane composite structure system.The cable-membrane composite structure system is of a curved-surface cylinder structure with the middle concave inwards, a circle of the upper portion of the cylinder is of a steel truss structure, the upper portion of a cable net is connected with the steel truss structure, the cable net comprises a plurality of radial cables and annular cables, and the radial cables and the annular cables are arranged in a crossed mode to form grids; the construction method comprises the following steps that S1, the steel truss structure is installed, and an initial frame is formed; s2, an operation platform and a lifting tool frame are arranged, and a lifting point is set; s3, the radial cable and the lifting tool frame are connected and lifted to be separated from the ground; s4, a cable net lifting and tensioning scheme is determined, specifically, the cable net is lifted to the designed height in a staged mode, annular cables are synchronously installed, and radial cables are symmetrically tensioned in a staged and batched mode; s5, synchronously performing simulation calculation and analysis; and S6, based on the simulation calculation and analysis result, lifting and tensioning of the cable net are conducted, and finally cable net forming is completed. And S7, a membrane structure is installed, and the tension of the cable net is adjusted.

The invention provides a pre-pressing method for construction of a suspension structure, and particularly relates to a method for applying a subsequent total load in advance through a pre-pressing device such as a hydraulic jack, so that a floor structure vertically deforms and is locked in advance, and then pressure is balanced and released step by step along with increase of a construction load. Load application and pressure release balance in the whole process is ensured, and structural deformation is in a stable state. According to the method, a structure pre-arching mode is adopted in the earlier stage, after construction of a steel structure outer frame is completed, the follow-up design load amount is obtained through calculation, suspension structure outer frame pre-pressing is conducted, so that the vertical deformation amount is locked in advance, then pressure is released through step-by-step unloading along with increase of the construction load, and the outer frame structure stress is always in a balanced state; the problem that vertical deformation of a floor structure is continuously increased due to load increase in floor construction of a suspension structure is solved. The risks of structural cracking, roof water leakage, building decoration layer damage and the like possibly caused by development of vertical deformation of the floor are reduced to the maximum extent, and the construction quality of the suspension structure is greatly improved.

A modular assembly, including a first module, a second module, and a third module, each including upper and lower walls, a first end wall extending between the upper wall and the lower wall, a second end wall opposite the first end wall, and extending between the upper wall and the lower wall, and a first side wall extending between the upper wall and the lower wall, and between the first end wall and the second end wall. The first side wall defines a first opening, where the second module includes a second side wall extending between the upper wall of the second module and the lower wall of the second module, and between the first end wall of the second module and the second end wall of the second module. The second side wall defines a second opening and interior and exterior seals between the first, second, and third modules.

The present invention belongs to the technical field of foundation pit air film, and specifically relates to a foundation pit air film with a pressure regulating function, including an air film body and a lifting control mechanism; the air film body is arched and installed above the foundation pit, and a plurality of foundation pit support plates are arranged on the pit wall of the foundation pit, and the foundation pit support plates are fixed by anchor rods inserted into the soil; there are multiple lifting control mechanisms, and they are arranged along the contour direction of the foundation pit; each lifting control mechanism is fixed on the foundation pit support plate, and an inflatable cross column is arranged on the lower edge of the air film body, and the inflatable cross column is installed on the lifting control mechanism and lifted and controlled by the lifting control mechanism to achieve the change of the space volume below the air film body, thereby completing the pressure regulation. This scheme controls the height of the air film body through the lifting control mechanism, which can quickly compress the air inside the foundation pit air film, so that the air pressure inside the foundation pit air film rises rapidly, so as to resist sudden strong winds and increase the safety and stability of the use of the foundation pit air film.

The invention provides a reticulated shell structure and a hoisting and splicing method thereof. The method comprises the steps that target reticulated shell structures to be hoisted and key parameters of all the target reticulated shell structures are determined; determining an initial hoisting point of each target reticulated shell structure according to the key parameters; constructing a virtual mechanical model based on the initial hoisting points, and calculating theoretical deformation parameters of each target latticed shell structure in the hoisting process according to the virtual mechanical model; judging whether the theoretical deformation parameter meets a first preset condition or not, and if not, adjusting the position of the initial hoisting point until the theoretical deformation parameter meets the first preset condition so as to determine an actual hoisting point; and carrying out hoisting splicing operation on the to-be-hoisted target latticed shell structure according to the actual hoisting point. By means of the method, deformation of the latticed shell structures in the butt joint process can be accurately controlled, and the hoisting and splicing accuracy and efficiency are improved.

The invention relates to the technical field of cable-supported grid structures, and discloses a permanent cable net support hoisting method which comprises the following steps: hoisting a cable net to an initial mounting configuration; applying a pull-down force to the cable net through at least one measure cable; the inclination angles of the radial steel beams relative to the horizontal plane are changed by multiple times, and loads are applied to the radial cables in the cable net by the heat by multiple times; after the load is applied each time, the cable force of the measure cable is dynamically adjusted, so that the configuration of the radial cable is matched with a preset supporting rod or flying column connecting point, and connection is completed; and after all the connecting points are connected, the measure cables are dismantled, and final shape finding of the radial cables is completed. The invention aims to provide a construction method for mounting an upper steel structure on a flexible cable net based on load superposition and a mode of dynamically adjusting a pull-down tool cable, and solves the problem that a plurality of support radial units complete shape finding under the control of a single pull-down tool cable.

The invention provides a construction method of a cantilever hanging steel structure, which belongs to the technical field of building construction, and comprises the following steps: arranging a temporary jig frame at the outermost end of each floor of the cantilever hanging steel structure, carrying out positive-sequence installation construction from bottom to top, dismantling the temporary jig frame after the construction process is completely finished, and calculating the position of the cantilever hanging steel structure according to a calculation simulation result. A deformation preset value is set before each step of construction, so that it is guaranteed that all structural members fall to the designed positions after construction is completed; according to the construction method of the cantilever hanging steel structure, the problem that deformation is difficult to control in cantilever structure construction is solved, and the construction method has the advantages of being easy to operate, convenient, fast, reliable and high in applicability.