79 results about "Tube (structure)" patented technology

The using method of the automatic reversing climbing boot device aims at solving the problem that a direction-adjusting anti-falling device cannot be popularized and applied in actual engineering. The method comprises the steps that the bottom of a core tube stand column is connected to a poured concrete structure, lower clamping wedges of two climbing shoes are driven to be buckled to the stand column, a climbing oil cylinder extends, a first climbing shoe drives a steel platform to climb upwards, the climbing oil cylinder shrinks, a second climbing shoe climbs upwards, and the two climbing shoes alternately jack to drive the steel platform to climb to the top of the core tube stand column; the steel platform is fixed to a poured concrete structure, connection of multiple sections of core tube stand columns is loosened, upper clamping wedges of two second climbing shoe clamping pins are driven to be buckled to the core tube stand columns respectively, a climbing oil cylinder extends, a second climbing shoe moves downwards, the climbing oil cylinder contracts, the second climbing shoe drives the core tube stand columns to climb upwards, and the core tube stand columns are fixed to the steel platform. And repeating the steps until the core tube stand column climbs to the top of the steel platform until concrete pouring construction of the building structure is completed.

To improve pull-out resistance of joints of tube columns forming a frame structure together with upper and lower steel beams in which load-bearing walls are incorporated, to the upper and lower steel beams so as to ensure sufficient earthquake resistance.SOLUTION: A building frame structure is provided with: upper and lower steel beams 2, 3; a pair of tube columns 4, 5 provided between the upper and lower steel beams 2, 3; and a load-bearing wall section 10 disposed inside a frame 1 comprising the upper and lower steel beams 2, 3 and the pair of tube columns 4, 5 and fixed to the upper steel beam 2 at its upper end and fixed to the lower steel beam 3 at its lower end. The upper and lower steel beams 2, 3 and the pair of tube columns 4, 5 are each connected by a frame connection member 6 provided across the steel beams 2, 3 and the tube columns 4, 5.SELECTED DRAWING: Figure 1

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 an overall system conversion process after accumulative slippage of a space pipe truss, and relates to the technical field of steel structure construction. According to the process, a supporting bracket and a jack system are installed, and a mode of combining graded unloading and lateral pushing is adopted, so that accurate conversion of a truss from a temporary supporting state to a design position is achieved. The method comprises the key steps of step-by-step unloading with 20 mm as a circulation unit, jack bottom supporting height adjustment, hydraulic synchronous control and lateral limiting measures. The method solves the problems of poor synchronism, stress concentration and the like in a traditional unloading method, has the advantages of high in-place precision, high in safety, high in construction efficiency and the like, and is suitable for construction of a large-span space pipe truss structure.

The present invention relates to the technical field of long strip structural members for bearing loads, and discloses an adjacent skew grid steel tube, which is used as the core tube of a building with a frame-core tube structure. At least two rigid corner tubes aligned with the upper and lower ends of the skew grid steel tube are arranged on the side of the skew grid steel tube. The rigid corner tubes are vertically arranged rigid structures, and there are spaces between the rigid corner tubes and they are respectively fixedly connected to the skew grid steel tube. In the present invention, by using rigid corner tubes to fix on the two vertical edges of the skew grid steel tube, its flexural and torsional stiffness is improved, enabling it to be used as the core tube of a building, thus bringing three benefits: improving the vision inside the building, reducing the self-weight of the building, and shortening the construction period. In the present invention, since the floor slabs of the building expand outward with the skew grid steel tube as the center, the rigid corner tubes are mainly used to improve the stiffness of the skew grid steel tube and have a small cross-section requirement, so an integral climbing formwork construction equipment can be used for rapid construction.

The invention discloses a cross-shaped core tube design method suitable for a super high-rise building, belongs to the field of building design, and aims to solve the problems that due to lack of intensive layout, the building area is wasted, and the use amount of building materials and operation energy consumption are increased. A building system, a structure system, an electromechanical system, an elevator system and other systems are subjected to coupling optimization design, and the plane service capacity of the core tube is improved; by adopting the crossed arrangement of the cross-shaped elevator halls, the traffic area of the core tube can be saved by about 10m < 2 > on each floor, and the use space of more than 500m < 2 > is totally saved according to 50 floors; waste of building area is reduced, and the plane utilization rate can be increased to 78%-80% and is increased by about 2%-5% compared with traditional parallel arrangement; by adopting the cross-shaped elevator hall arrangement scheme, the uniformity of the plane can be obviously improved, the problem of plane detour is avoided, and the streamline distance from the core tube to each shop under the same plane layout can be shortened by about 25-30% compared with a parallel arrangement scheme.

The utility model provides an enclosure structure suitable for a dry-type building, comprising: a side wall frame, the side wall frame comprising a plurality of main body structural beams arranged in an array; the multiple groups of enclosure connecting assemblies are arranged on the side wall frame, and each enclosure connecting assembly comprises a first angle steel piece and a second angle steel piece which are detachably mounted on the main body structural beam through bolts; the peripheral guard plate pieces are detachably mounted on the outer side of the main body structural beam through a group of enclosure connecting assemblies so as to form an outer wall of the dry type building; a plurality of limiting rectangular pipes are arranged on the first angle steel piece and the second angle steel piece in a sectional mode and used for limiting the installation position of the peripheral protection plate piece. The building envelope provided by the utility model is convenient to mount and dismount, the structure can be repeatedly used for many times, and simulative building scenes are enriched.

The utility model discloses a steel structure-core tube equal-height synchronous climbing construction system oriented to construction time variation. The steel structure-core tube equal-height synchronous climbing construction system comprises an embedded part overall installation system. Optimization design of fireproof joints between peripheral layers of the steel structure is carried out; the profiled steel sheet is free of a support system; an outer-frame-free same-layer construction system is adopted; a lantern frame system and a steel structure node optimization design are further included; and system supplementation is carried out through the design of an outer wall column protection frame body and the design of a material lifting platform. According to the utility model, based on the construction site, through the optimization design of the nodes and the optimization innovation of the construction system, the two different materials of the concrete cylinder and the outer frame steel column work cooperatively, and the technical problems of long construction period, high construction cost, large construction potential safety hazard and the like are solved.

The utility model relates to a circular pipe and rectangular pipe combined section chord member for a building pipe truss structure, and relates to the technical field of steel structure truss.The circular pipe and rectangular pipe combined section chord member comprises a circular pipe section chord member, a rectangular pipe section chord member and a connecting assembly, and the two ends of the connecting assembly are connected with the circular pipe section chord member and the rectangular pipe section chord member correspondingly; and the connecting assembly is used for connecting the circular pipe section chord member and the rectangular pipe section chord member. The method has the effect of improving the reasonable utilization rate of materials.

The utility model relates to the technical field of constructional engineering, and particularly discloses a keel partition wall entrance door mounting structure which comprises a heaven and earth keel, a plurality of vertical keels and a plurality of transverse keels. The heaven and earth keels are fixed to the bottom of the building top plate, the multiple vertical keels are arranged below the heaven and earth keels and the building bottom plate and form a door opening, and the multiple transverse keels are connected between the multiple vertical keels in a non-door-opening area. Square tube keels are obliquely arranged above the two corresponding vertical keels on the two sides of the door opening respectively and fixed to the heaven and earth keels, the two square tube keels form a triangular structure, the two corresponding vertical keels on the two sides of the door opening are oppositely provided with door pockets, and a single door is arranged between the two door pockets in a matched mode. The two square tube keels forming the triangular structure are arranged above the door opening, the overall stability of the door pocket can be improved, in the long-term use process, the problems that the door pocket cracks and an entrance door sinks are solved, later high-cost maintenance is avoided, and high practicability is achieved.

The utility model is applicable to the technical field of house structures, and provides a square tube quick assembly clamping piece for a house structure, which comprises a pre-assembly quick connecting piece, a square tube quick connecting piece, a square tube quick connecting piece and a square tube quick connecting piece, and the anchor pulling bolts are used for fixing the pre-assembled quick connecting pieces and the supporting stand columns. The mounting pieces on the pre-assembly quick connecting pieces are hung on the mounting holes in the supporting stand columns, preliminary assembly is achieved, the fixing holes in the pre-assembly quick connecting pieces are aligned with the mounting holes in the supporting stand columns, the tail ends of the pulling anchor bolts penetrate through the fixing holes in the pre-assembly quick connecting pieces and the mounting holes in the supporting stand columns, and then the pre-assembly quick connecting pieces are assembled. And the pre-assembled quick connecting sheet and the supporting upright post are firmly fixed together by screwing up the nut of the anchor bolt. The building block has the advantages of being high in strength and good in stability in the building process. Butt joint is achieved in a quick hanging mode, then bolts are used for tightening, installation and disassembly are more convenient and faster, assistance of heavy machines such as cranes is not needed, manual installation is fast, welding is avoided in the construction process, and the construction difficulty is reduced.

The utility model belongs to the technical field of wind power generation engineering, and relates to a platform structure for storing prefabricated concrete tower tube segments, which comprises a storage platform, two rows of fixing grooves matched with the mixed tower tube segments are sequentially arranged on the storage platform along the length direction of the storage platform, and a quality inspection channel is arranged between the two rows of fixing grooves. Compared with an existing sleeper support, more, higher and heavier mixed tower segments can be stacked, stacking is stable and does not collapse, and the concrete storage platform is not prone to being affected with damp, does not crack at the high temperature, does not become fragile at the low temperature and is long in service life. Particularly, the storage platform is arranged to be an A area, a B area, a C area and a D area, mixed tower segments of different sizes can be stacked in the areas in a classified and ordered mode, and the quality inspection work efficiency of management personnel is improved.

The utility model belongs to the technical field of building construction, and discloses a non-floor type construction operation platform structure which comprises a lower floor slab, a plurality of structural columns are arranged on the lower floor slab, brackets fixed to the side faces of the structural columns are further included, H-shaped steel is arranged on the brackets, a plurality of bailey beams are evenly arranged on the H-shaped steel, and the bailey beams are fixed to the lower floor slab. The bailey beam is perpendicular to the H-shaped steel, a plurality of I-shaped steel is evenly installed on the bailey beam, and supporting frame vertical rods are arranged on the I-shaped steel. The non-floor type construction operation platform structure is supported by the lower floor slab and the structural column, does not need a ground foundation, and is suitable for narrow space or high-altitude operation scenes (such as high-rise building core tube construction); the I-shaped steel spacing and the vertical rod arrangement are flexibly adjusted according to the upper load, the bearing requirements of different construction stages are met, and the structure is particularly suitable for construction scenes of complex building structures.

The present invention belongs to the field of building technology, and particularly relates to a flexible connection structure between a prefabricated infill wall and a prefabricated frame column. The technical solution is as follows: it comprises a prefabricated steel member I, a prefabricated steel member II and connecting steel bars, wherein the prefabricated steel member I is a square tube structure, fixedly arranged on the side of the prefabricated frame column, and provided with a vertical slide groove; the two ends of the prefabricated steel member II are dumbbell-shaped sliders and hooks respectively; one end of the connecting steel bar is embedded in the prefabricated infill wall, and the other end of the connecting steel bar is an O-shaped end; the slider is placed in the slide groove, and the hook hooks the O-shaped end to flexibly connect the prefabricated infill wall and the prefabricated frame column together. The present invention can solve the problem of the additional stress on the tie bars caused by the settlement deformation of the prefabricated infill wall, improve the local seismic performance of the structure, and has a simple structure, clear force transmission, good integrity, convenient construction, and safety and reliability.

The utility model discloses a concrete core tube design structure which comprises a partition wall which comprises a vertically-arranged inner support and a sealing cover plate on the surface, and a concrete layer is poured in the inner support and comprises a first waved plate and a second waved plate which are connected in an inserted mode. The inner stand column is arranged in the core tube structure and comprises a first steel outer frame provided with a concrete inner core, and the side face of the inner stand column abuts against, supports and positions the end face of the partition wall through a first steel corbel; the edge stand column is arranged on the edge of the core tube structure and comprises a second steel outer frame provided with a concrete inner core, and the side face of the edge stand column abuts against, supports and positions the end face of the partition wall through a second steel corbel. Compared with a common core tube structure, the core tube structure is convenient to integrally assemble and operate, and has the advantages of being good in structural anti-seismic ductility, energy dissipation performance, compression resistance and buckling resistance.

This invention discloses a multifunctional reusable hoisting cage and its construction method, comprising a pallet body and a hoisting cage body detachably connected. A bottom supporting steel pipe is fixedly connected to the bottom of the pallet body, and a connecting square tube is fixedly connected to the top of the hoisting cage body. Connecting steel pipes are provided on both sides of the hoisting cage body, and the hoisting cage body is detachably connected to the pallet body via the connecting steel pipes. This invention solves the problems of fixed structure, poor adaptability, high safety hazards, and low turnover efficiency of traditional construction hoisting equipment. It can be adapted to the vertical hoisting of various scattered building materials such as bricks, mortar, stirrups, and small components. It has advantages such as convenient assembly and disassembly, safety and reliability, reusability, wide applicability, and low manufacturing cost. It can effectively improve the efficiency of material hoisting on construction sites, reduce the intensity of manual handling and construction safety risks, and is applicable to various construction scenarios such as residential buildings, commercial buildings, municipal engineering, and factory construction.

The application relates to the technical field of super-high building construction, in particular to a construction method of a super-high building tower crane. The construction method of the super-high building tower crane specifically comprises the following steps: S1, positioning and digging a hole; S2, constructing a high-pile pile cap foundation; S3, installing the tower crane: installing the tower crane on the high-pile pile cap foundation, and the tower crane can be used in a foundation pit supporting project and a basement project; S4, constructing a supporting structure: embedding a lattice column into a core tube shear wall structure to form the supporting structure; S5, constructing a main body structure; S6, converting an inner climbing tower crane: when a building under construction reaches a certain number of layers, installing a supporting leg of the inner climbing tower crane, simultaneously converting the high-pile pile cap tower crane into the inner climbing tower crane, cutting off the high-pile pile cap foundation after construction is completed, and using the inner climbing tower crane as a main tool for vertical transportation of the super-high building. The application has the advantages that the tower crane is inserted in advance as a vertical transportation tool, and the construction progress is accelerated.

The invention relates to the technical field of building construction, and particularly discloses an aerial refuge floor slab construction method which is used for carrying out high-altitude operation in an atrium area between core tubes on the two sides. The method comprises the following steps that firstly, the two ends of a first truss and the two ends of a second truss are welded to steel rib columns of core tubes on the two sides respectively, and a main bearing structure is formed; a cantilever steel beam is installed at a hole of the core tube, a channel steel beam penetrating front and back is erected at the cantilever end of the cantilever steel beam, a protective fence is installed on the outer side of the top face of the channel steel beam, and a suspension cage for workers to operate is hung on the inner side of the top face of the channel steel beam; then, steel beam connecting plates are installed on the wall side of the core tube, atrium steel beams are hoisted and form a complete truss layer together with the previous trusses, and then the temporary safety channel is dismantled. And finally, floor bearing plates are laid on the top face of the truss layer, reinforcing steel bars are bound, concrete is poured, and a final refuge floor slab is formed. According to the method, the problems of no support, high safety risk and low efficiency of the high-altitude large-span area working surface are solved.

This invention provides a method for modifying a steel platform formwork for reducing the size of a core tube wall in mid-air, comprising the following steps: 1. Reducing the core tube wall size starting from the Nth floor, with the steel platform formwork located on the Nth floor; 2. Lifting the steel platform formwork to the N+1th floor and constructing the Nth floor core tube structure; 3. Constructing permanent enclosures on the top of the platform, and constructing first permanent and temporary enclosures at the edges of the remaining hanging scaffolding; 4. Dismantling the steel platform formwork and the hanging scaffolding to be dismantled in the area where the wall size was reduced; 5. Lifting the steel platform formwork to the N+2th floor, constructing second permanent enclosures at the edges of the remaining hanging scaffolding, and constructing the N+1th floor core tube structure; 6. Lifting the steel platform formwork to the N+3th floor, constructing third permanent enclosures at the edges of the remaining hanging scaffolding, and constructing the N+2th floor core tube structure. This invention relates to the field of high-rise building structure construction technology and solves the problem of the lack of a safe and efficient method for modifying steel platform formwork.

The present invention discloses a beam-column node reinforced by an FRP tube, belonging to the technical field of construction building structure, comprising a node formwork for holding concrete, wherein a plurality of steel bars are arranged in the node formwork, and the plurality of steel bars are staggered horizontally and vertically, and an FRP tube is vertically placed at the node position in the node formwork, wherein a plurality of through-holes are provided through the side surface of the FRP tube, and steel bars are provided through the plurality of through-holes, and the FRP tube is provided at the middle position of the beam-column node, and the FRP tube provides 45° shear resistance and circumferential constraint to the beam-column node through the tubular structure, thereby improving the bending resistance of the beam-column node under a vibration environment, and by providing the FRP tube instead of the vertical steel bars, the setting of steel bars is reduced, thereby improving construction efficiency.

The invention relates to the technical field of structural engineering-seismic mitigation and isolation, in particular to a steel frame-concrete core tube structure based on in-layer seismic mitigation and isolation and a design method, and the steel frame-concrete core tube structure comprises an external steel frame and an internal core tube; the outer steel frame surrounds the periphery of the inner core tube, and a seismic isolation gap is formed between the outer steel frame and the inner core tube; seismic mitigation and isolation nodes are arranged at the seismic isolation seams and used for connecting the external steel frame and the internal core tube; a floor slab is arranged on the steel frame; a shear wall is arranged on the periphery of the inner core tube; a miniature pipe gallery is arranged between the floor slab and the shear wall; a pipeline is arranged in the miniature pipe gallery; a ground decoration surface layer is arranged on the floor slab, and the distance between one end, close to the shear wall, of the ground decoration surface layer and the shear wall is larger than the distance between the floor slab and the shear wall.

The invention discloses a deep foundation pit construction method based on cooperation of tube well dewatering and graded excavation, and belongs to the technical field of civil engineering construction. The method comprises the steps that firstly, tube wells are arranged on the periphery of a foundation pit, a water pumping system is started, and the underground water level is lowered to the safe height below the foundation pit bottom elevation; and then based on the stress state of the enclosure structure and the stratum permeability characteristic, the excavation process of the foundation pit is divided into a plurality of graded construction stages, and the water pumping amount and the excavation depth of the tube well are synchronously adjusted in all the stages so as to maintain dynamic balance of water and soil pressure. The rainfall scheme and the excavation rhythm are subjected to feedback regulation and control by monitoring key indexes such as the water level, ground surface settlement and building envelope deformation in real time, and accurate control over the seepage field and the stress field is achieved. According to the method, geological disasters such as water inrush, piping and bottom upheaval of the foundation pit in deep foundation pit construction are effectively prevented, the risk of differential settlement of the surrounding environment is reduced, the stability of a supporting structure and the construction safety are improved, and the method has the advantages of being high in implementation performance and high in engineering application value.

The invention relates to the technical field of building assembly, in particular to an assembly component for a light ceramic glass plate wall and a floor slab, which comprises bolts, a first assembly disc is embedded in the floor slab, a second assembly disc is embedded in the plate wall, and shadow overlapping surfaces of the first assembly disc and the second assembly disc are perpendicular to each other. Preliminary positioning of the assembly disc is completed through insertion connection of the outer pipe frame and the inner pipe frame, then a torque wrench is used for driving the bolt into a plate wall, meanwhile, the wedge-shaped block is matched with the bolt to rotate, the extrusion rod is pushed to move upwards, and the two conical rods are indirectly driven into a floor slab. The bolts, the insertion cones, the outer pipe frame and the inner pipe frame form an I-shaped structure, so that the stress between the plate wall and the floor is effectively dispersed, and the problem of stress deviation caused by rigidity difference is solved; and the lifting operation of the extrusion rod is ensured by controlling the rotating angle of the wedge block, so that the I-shaped assembly part is smoothly formed in the plate wall and the floor.

The present application belongs to the field of building engineering construction technology, and discloses a kind of suspension steel structure floor elevation active control method, comprising the following steps: construction core tube structure, and symmetrically construction cantilever truss layer on the top of core tube structure;Suspension steel structure is constructed by using forward construction method or reverse construction method, and the vertical deformation of each suspension floor of suspension steel structure is caused by lifting suspension steel structure, and the elevation of each suspension floor is adjusted to the design standard value allowed range.In the construction process, the above-mentioned construction method can actively control the elevation of the suspension floor according to the actual construction situation, has high flexibility, and can more accurately meet the design requirements.

The invention relates to the technical field of super high-rise building construction, in particular to a construction method of a super high-rise building tower crane. The construction method of the super high-rise building tower crane specifically comprises the following steps that S1, positioning and hole digging are conducted; s2, constructing a high pile cap foundation; s3, a tower crane is installed, specifically, the tower crane is installed on the high pile cap foundation, and the tower crane can be put into foundation pit supporting engineering and basement engineering to be used; s4, a supporting structure is constructed, specifically, the latticed columns are embedded into the core tube shear wall structure to form the supporting structure; s5, constructing a main body structure; and S6, the internal climbing tower crane is converted, specifically, when the to-be-built building is constructed to a certain layer number, supporting legs of the internal climbing tower crane are installed, meanwhile, the high-pile bearing platform tower crane is converted into the internal climbing tower crane, a high-pile bearing platform foundation is cut off after construction is completed, and the internal climbing tower crane is subsequently used as a main tool for vertical transportation of the super high-rise building. The method has the advantages that the tower crane is inserted in advance to serve as a vertical transportation tool, and the construction progress is accelerated.

The invention discloses a construction method of a super-long and super-high hollow brick wall surface, which comprises the following steps: firstly, arranging and designing a back lining framework and hollow bricks, then constructing end part and corner frame columns, frame beams and reverse ridges, then mounting a steel structure keel, drilling a cross beam, then building the hollow bricks, grouting a reserved hole in the top of the frame beam, and finally constructing the super-long and super-high hollow brick wall surface. And finally, surface layer putty batch embedding and paint spraying treatment are conducted. According to the hollow brick, the steel structure framework is arranged as a main stress component to replace a traditional constructional column, damage to continuity of the outer vertical face of the hollow brick is reduced, the steel bars or the steel cables are adopted to form a tying system to connect the square tube framework and the main body structure, the overall lateral displacement resistance is improved, and the overall lateral displacement resistance is improved through the tying synergistic effect of the square tube framework and the steel bars or the steel cables. Deformation of the hollow brick wall is controlled, and balance between stability and the external facade effect is achieved.

The utility model belongs to the technical field of constructional engineering, and particularly provides an assembly type foundation pit protection device which comprises a foundation assembly and a plurality of stand columns, the bottom of the foundation assembly is installed on the horizontal and hard ground around a foundation pit through a fixing assembly, and the stand columns are arranged in the length direction of the foundation assembly at intervals. The stand columns are detachably connected with the top of the foundation assembly through bolts, a protective fence is installed between every two adjacent stand columns, the foundation assembly comprises an upper-layer angle steel structure and a lower-layer angle steel structure, and the upper-layer angle steel structure, the lower-layer angle steel structure and the upper-layer angle steel structure are connected through a plurality of square pipes to define a cuboid structure. The surfaces of the cuboid structures are wrapped with galvanized iron sheets. The foundation pit surrounding safety protection device can meet the foundation pit surrounding safety protection function, prevent foundation pit falling and high-altitude object falling risks and prevent accumulated water on roads around a foundation pit from flowing into the foundation pit, can be disassembled, changed and combined at will according to different foundation pit construction stages, and meets different construction protection use scenes.

The invention relates to a tower structure and a construction method thereof. According to the tower structure, an inner cylinder steel frame and an outer cylinder uniparted hyperboloid reticulated shell are coaxially arranged and are rigidly connected through radial steel beams to form a double-layer collaborative stress system; the vertical steel columns of the inner cylinder are spliced in a staggered and segmented mode, the inclined steel columns of the outer cylinder are detachably connected through the integrated lug plates, the combined floor support plate is of an integrated structure to improve the bearing performance, and a composite anti-corrosion coating and a fireproof coating with an interface bonding layer are arranged on the surface of the steel member. The construction process comprises BIM modeling optimization, foundation construction, steel member transportation and hoisting, connection and welding, platform installation, anti-corrosion and fireproof treatment and acceptance. The problems that a traditional tower structure is poor in stress collaboration, the splicing precision and stability of steel members are insufficient, the bearing efficiency of a combined floor support plate is low, and the anti-corrosion and fireproof protection effect is poor are solved.

The invention relates to the technical field of constructional engineering, and discloses a high-position downward-hanging and low-position upward-supporting steel structure system and an integral accumulative lifting construction method thereof.The system comprises a core tube shear wall assembly, a roof net rack steel structure, a downward-hanging floor steel structure, an upward-supporting floor steel structure, an upward-supporting net rack steel structure, curtain wall columns, brackets and sitting hinge supports; the curtain wall column is connected with the lower hanging floor steel structure and the upper supporting floor steel structure. The high-position downward-hanging and low-position upward-supporting innovative structure system is composed of four sets of symmetrically-arranged core tube shear walls, a high-position downward-hanging structure and a lower-position upward-supporting structure, the urgent requirement of a modern building for a large-span and multifunctional space is accurately responded, the mechanical property and the space efficiency are organically fused, and therefore the large-span and multi-functional space is obtained. A high-efficiency building structure body is created, a hanging steel structure is adopted below a roof net rack steel structure, a lower hanging floor structure is not shielded except for extremely few hanging columns, and the space utilization efficiency is greatly improved.