WO2021052142A1 - Cable-supported large-span structure and construction method therefor - Google Patents

Cable-supported large-span structure and construction method therefor Download PDF

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Publication number
WO2021052142A1
WO2021052142A1 PCT/CN2020/112183 CN2020112183W WO2021052142A1 WO 2021052142 A1 WO2021052142 A1 WO 2021052142A1 CN 2020112183 W CN2020112183 W CN 2020112183W WO 2021052142 A1 WO2021052142 A1 WO 2021052142A1
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WIPO (PCT)
Prior art keywords
cable
assisted
mast
bearing
horizontal force
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PCT/CN2020/112183
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French (fr)
Chinese (zh)
Inventor
陈振明
吴曦
戴立先
张耀林
江磊
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中建科工集团有限公司
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Application filed by 中建科工集团有限公司 filed Critical 中建科工集团有限公司
Priority to AU2020348407A priority Critical patent/AU2020348407A1/en
Publication of WO2021052142A1 publication Critical patent/WO2021052142A1/en
Priority to AU2023210601A priority patent/AU2023210601A1/en

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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/342Structures covering a large free area, whether open-sided or not, e.g. hangars, halls
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/34Extraordinary structures, e.g. with suspended or cantilever parts supported by masts or tower-like structures enclosing elevators or stairs; Features relating to the elastic stability

Definitions

  • the invention relates to the technical field of space structure buildings, in particular to a cable-assisted large-span structure and a construction method thereof.
  • the space structure system with a span of more than 60 meters is called a large-span structure building.
  • the commonly used forms of large-span space structure systems include grid structure, reticulated shell structure, suspension cable structure, membrane structure and thin shell structure, etc. .
  • Various spatial structures have been widely used in buildings such as stadiums, convention and exhibition centers, high-speed railway station buildings, and airport terminals.
  • the cable-stayed structure of the existing building generally consists of a column, a roof plane structure, a cable system and an anchoring foundation.
  • the column and the roof plane structure, and the column and the anchoring foundation adopt single or multiple cables.
  • Root cable structure which is connected by a single-stage cable system.
  • the cable structure should be a suspension cable structure, a cable-stayed structure, a string structure or a cable dome.
  • the material grade requirements for a single type of structure are getting higher and higher, and the cross-section requirements are getting larger and larger, which is uneconomical and difficult to build.
  • the Chinese patent application with publication number CN109629693A discloses a large-span self-anchored orthogonal suspension cable structure, which includes a main load-bearing structure and a secondary load-bearing structure, and the main load-bearing structure includes a plurality of suspension cables arranged at intervals in parallel
  • the secondary load-bearing structure includes a plurality of cable trusses arranged at intervals in parallel, and the plurality of cable trusses are vertically arranged on the suspension cable frame along the extension direction of the suspension cable frame.
  • this structure can only meet some large-span buildings, but cannot meet the needs of special-shaped buildings or structures.
  • the purpose of the present invention is to provide a cable-assisted large-span structure and a construction method thereof, so as to solve the technical problem that the large-span structure in the prior art cannot meet the needs of special-shaped buildings or structures.
  • the technical solution adopted by the present invention is to provide a cable-assisted large-span structure, including: a main load-bearing structure and a secondary load-bearing structure, the main load-bearing structure includes a vertical force-bearing member and is fixed to the vertical The horizontal force-receiving member at the top end of the force-receiving member, the horizontal force-receiving member is erected on at least two of the vertical force-receiving members; the secondary load-bearing structure includes at least one cable-assisted component, and each level of the cable-assisted component Each includes a cable and a mast vertically arranged on the horizontal force-bearing member. One end of the cable is fixed to the fixing member or the horizontal force-bearing member, and the other end is fixed to the mast through the top end of the mast. On the horizontal force member.
  • the cable-assisted assembly includes a primary cable-assisted, the masts of the primary cable-assisted are respectively located at four corners of the horizontal force-bearing member, one end of the cable is fixed to the fixing member, and the other end is The top end of the mast is fixed on the horizontal force-bearing member.
  • the cable-assisted assembly further includes a secondary cable-assisted, and the mast of the secondary cable-assisted is provided at the connection between the stay cable of the primary cable-assisted and the horizontal force-receiving member;
  • One end of the stay cable of the secondary cable assistant is fixed to the bottom of the mast of the primary cable assistant, and the other end passes through the top of the mast of the secondary cable assistant and is fixed to the horizontal receiving device. On the force piece.
  • the cable-assisted assembly further includes a multi-stage cable-assisted, and the mast of the multi-stage cable-assisted is provided at the connection between the stay cable of the upper-level cable-assisted and the horizontal force-receiving member;
  • One end of the guy cable of the multi-stage cable assistant is fixed to the bottom of the mast of the upper-stage cable assistant, and the other end passes through the top of the mast of the multi-stage cable assistant and is fixed to the horizontal force Pieces.
  • the stay cables are symmetrically arranged with the mast.
  • the height of the mast of the primary cable assistant is greater than the height of the mast of the secondary cable assistant; the height of the mast of the secondary cable assistant is greater than that of the multi-stage cable assistant. State the height of the mast.
  • the distance between the masts close to the vertical force member is greater than the distance between the masts far away from the vertical force member.
  • the masts are respectively arranged on two opposite sides in the length direction of the horizontal force-bearing member, and the secondary load-bearing structure is symmetrically disposed in the length and width directions of the horizontal force-bearing member.
  • the vertical force-receiving member adopts a support column, which is arranged vertically or obliquely;
  • the horizontal force-receiving member adopts a connecting beam, and the longitudinal cross-sectional shape of the connecting beam is linear or arc-shaped.
  • the number of the main load-bearing structure and the secondary load-bearing structure are both multiple, and the adjacent main load-bearing structures are fixedly connected, and the adjacent secondary load-bearing structures are connected by cables .
  • the invention also discloses a construction method of a cable-assisted large-span structure, which is used to build the above-mentioned cable-assisted large-span structure, and the construction method includes the following steps:
  • the bottom of the vertical load-bearing member is fixed to a fixing member, and the horizontal load-bearing member is hoisted to the top of the vertical load-bearing member, and the horizontal load-bearing member Fixedly connected with the vertical force-receiving member;
  • Mast installation reserve a reserved interface for fixing the mast on the horizontal force member, hoist the mast to the reserved interface, and fixedly connect the mast and the reserved interface ;
  • Cable installation after unfolding the cable, fix one end of the cable to the fixing member or the horizontal force-receiving member, and use a single-point hoisting method to pass one end of the cable through
  • the top end of the mast is fixedly connected to the other end of the cable and the horizontal force-receiving member, so that the forces on both sides of the mast are symmetrical;
  • the cables are sequentially stretched, and at the same time, the tension of the cables at the two ends of the horizontal force-bearing member is adjusted.
  • the horizontal force-receiving member is manufactured in sections in a factory, a temporary support is provided on one side of the vertical force-receiving member, and several horizontal force-receiving members are hoisted to the vertical force-receiving member in sequence And the temporary support, and fixedly connect a number of the horizontal stress members, and finally remove the temporary support.
  • the beneficial effect of the cable-assisted large-span structure and its construction method provided by the present invention is that: compared with the prior art, the cable-assisted large-span structure and the construction method of the present invention arrange the secondary load-bearing structure on the main load-bearing structure, The force-receiving member supports the horizontal force-receiving member, and the cable auxiliary component is arranged above the horizontal force-receiving member, and the horizontal force-receiving member is further pulled up by the cable to ensure the stability of the horizontal force-receiving member.
  • the structural force is reasonable, giving the building a light form, and can be set up with a first-level cable auxiliary component or a multi-level cable auxiliary structure according to the building form and structural load-bearing situation.
  • FIG. 1 is a schematic structural diagram when the cable-assisted large-span structure provided by an embodiment of the present invention is a primary cable-assisted;
  • FIG. 2 is a schematic structural diagram when the cable-assisted large-span structure provided by an embodiment of the present invention is a secondary cable-assisted;
  • FIG. 3 is a schematic structural diagram when the cable-assisted large-span structure provided by the embodiment of the present invention is a three-stage cable-assisted;
  • FIG. 4 is a schematic structural diagram when the cable-assisted large-span structure provided by the embodiment of the present invention is a four-stage cable-assisted;
  • FIG. 5 is a schematic diagram 1 of a three-dimensional structure of a cable-assisted large-span structure provided by an embodiment of the present invention.
  • FIG. 6 is a schematic diagram 2 of a three-dimensional structure of a cable-assisted large-span structure provided by an embodiment of the present invention.
  • FIG. 7 is a three-dimensional schematic diagram three of a cable-assisted large-span structure provided by an embodiment of the present invention.
  • FIG. 8 is a fourth schematic diagram of a three-dimensional structure of a cable-assisted large-span structure provided by an embodiment of the present invention.
  • FIG. 9 is a five-dimensional schematic diagram of a three-dimensional structure of a cable-assisted large-span structure provided by an embodiment of the present invention.
  • Fig. 10 is a schematic structural diagram of a cable-assisted large-span structure provided by an embodiment of the present invention.
  • Main load-bearing structure 2. Secondary load-bearing structure; 3. Fixed parts; 11. Vertical load-bearing parts; 12. Horizontal load-bearing parts; 21. Cable auxiliary components; 211. Stay cables; 212. Masts.
  • installation should be interpreted broadly unless otherwise clearly specified and limited.
  • it can be a fixed connection or a detachable connection.
  • Connected or integrally connected can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication between two components.
  • the specific meanings of the above-mentioned terms in the present invention can be understood in specific situations.
  • the cable-assisted long-span structure includes a main load-bearing structure 1 and a secondary load-bearing structure 2.
  • the main load-bearing structure 1 includes a vertical force-receiving member 11 and a horizontal force-receiving member 12 fixed to the top of the vertical force-receiving member 11
  • the horizontal force-receiving member 12 is erected on at least two of the vertical force-receiving members 11;
  • the secondary load-bearing structure 2 includes at least one cable-assisted component 21, and each level of the cable-assisted component 21 includes a cable 211 and a mast 212 vertically arranged on the horizontal force member 12, one end of the cable 211 is fixed on the fixing member 3 or the horizontal force member 12, and the other end is fixed by the top end of the mast 212 On the horizontal force-receiving member 12.
  • the cable-assisted large-span structure provided by the present invention is that the secondary load-bearing structure 2 is arranged on the main load-bearing structure 1, the vertical load-bearing member 11 supports the horizontal load-bearing member 12, and the cable-assisted assembly 21 is provided Above the horizontal force-receiving member 12, a cable 211 is further used to pull up the horizontal force-receiving member 12 to ensure the stability of the horizontal force-receiving member 12.
  • One end of the cable 211 is fixed to the fixing member 3, and the other end It is fixed on the horizontal force member 12 and supported and transferred by the mast 212 in the middle, which can realize the integration of the structural system and the architectural effect, so that the cable structure and other structures can be combined in an innovative manner, giving full play to their respective advantages, and the structural force is reasonable.
  • the shape of the building is light, and one-level cable-assisted structure or multi-level cable-assisted structure can be set according to the building form and structural load-bearing situation.
  • the main load-bearing structure 1 may select one or more of frame structure, truss structure, arch structure, grid structure, reticulated shell structure, membrane structure, or thin shell structure.
  • the spatial span of the overall structure is increased.
  • the cable-assisted component 21 of the secondary load-bearing structure 2 can be selected as a primary cable-assisted component 21 or a multi-stage cable-assisted component 21, wherein the number of stages of the multi-stage cable-assisted component 21 is not limited.
  • the cable-assisted assembly 21 includes a primary cable-assisted, and the mast 212 of the primary cable-assisted They are respectively located at the four corners of the horizontal force-receiving member 12, one end of the cable 211 is fixed to the fixing member 3, and the other end is fixed to the horizontal force-receiving member 12 via the top end of the mast 212.
  • the shape of the horizontal force receiving member 12 is a square structure.
  • the first-level cable accessory includes four masts 212, and the four masts 212 are respectively located at the outer edge corners of the horizontal force member 12.
  • the number of cables 211 is also four, and each cable 211 corresponds to a mast 212.
  • One end of the cable 211 is fixed to the fixing member 3, and the other end is fixed to the horizontal force-receiving member 12.
  • the fixing member 3 refers to a base member, which is generally a ground or a fixed member fixed on the ground.
  • the mast 212 may be directly arranged directly above the vertical force receiving member 11 or may be fixedly connected or welded with the vertical force receiving member 11.
  • the mast 212 has the same upright direction as the vertical force-receiving member 11, the bottom is just connected to the horizontal force-receiving member 12, the outer cable 211 is anchored on the foundation, and the inner cable 211 and the horizontal force-receiving member 12 are diagonally pulled.
  • the angle between the inner and outer cables 211 and the mast 212 can be adjusted according to structural requirements.
  • the cable-assisted assembly 21 further includes a secondary cable-assisted structure, and the mast 212 of the secondary cable-assisted At the junction of the cable 211 of the primary cable assistant and the horizontal force-receiving member 12; one end of the cable 211 of the secondary cable assistant is fixed to the The bottom of the mast 212 and the other end of the mast 212 passing through the top of the secondary cable are fixed on the horizontal force-bearing member 12.
  • the secondary cable assistant is arranged inside the primary cable assistant, and the secondary cable assistant also includes four masts 212 and four cables 211, wherein both ends of the cable 211 are fixedly connected to the horizontal force receiving member 12 , One end of the cable 211 is set under the mast 212 of the primary cable assistant, so that the primary cable assistant and the secondary cable assistant can cooperate to support the horizontal force-bearing member 12, and ensure that the horizontal force-bearing member 12 Even by force.
  • the vertical direction of the mast 212 of the secondary cable assistant and the mast 212 of the primary cable assistant should be coordinated appropriately, and the bottom is just connected to the horizontal force member 12.
  • the cable-assisted assembly 21 further includes a multi-stage cable-assisted mast. 212 is set at the connection between the stay cable 211 of the upper-level cable assistant and the horizontal force-receiving member 12; one end of the stay cable 211 of the multi-stage cable assistant is fixed to the upper-level cable assistant. The bottom of the mast 212 and the other end pass through the top of the mast 212 of the multi-stage cable and are fixed on the horizontal force-bearing member 12.
  • multi-level cable assistance refers to three or more levels of cable assistance, and multi-level cable assistance is equivalent to one or more secondary cable assistance.
  • the multi-stage cable assistant is set on the inner side of the second cable assistant, and the position of the next cable assistant is set on the inner side of the upper cable assistant, and each grade of cable assistant includes four masts 212 and four cables 211. Both ends of the cable 211 are fixedly connected to the horizontal force-receiving member 12, and one end of the cable 211 is set under the mast 212 of the upper-level cable-assisted, so that the upper-level cable-assisted and the lower-level cable-assisted can be The horizontal force-receiving member 12 is supported in cooperation, and the force on the horizontal force-receiving member 12 is ensured to be uniform.
  • the vertical direction of the mast 212 of the multi-stage cable assistant and the mast 212 of the first cable assistant and the second cable assistant should be coordinated appropriately, and the bottom is just connected to the horizontal force member 12.
  • the multi-level cable-assisted large-span structure required to construct a large space is formed by the multi-level cable-assisted combination.
  • the cables 211 are symmetrically arranged with the mast 212.
  • the cables 211 of each level of cable support can form an isosceles triangle, that is, the length and angle of the cables 211 on both sides of the mast 212 are equal, which can ensure that the forces on both sides of the cable 211 are equal, that is, It is ensured that the force on the horizontal force receiving member 12 is uniform, and the pulling force on the cable 211 can also increase the service life of the cable 211 on average.
  • the height of the mast 212 of the primary cable-assisted is greater than the height of the secondary cable-assisted.
  • the height of the mast 212; the height of the mast 212 of the secondary cable assistant is greater than the height of the mast 212 of the multi-stage cable assistant.
  • the primary cable-assisted structure of the multi-level cable-assisted large-span structure contributes the most to the overall structural bearing capacity
  • the secondary cable-assisted structure has the second highest bearing capacity of the entire structure
  • the cable-assisted structure with the lower order of the series contributes the most to the overall structure.
  • the height of the mast 212 is gradually reduced to meet the requirements of the overall structural bearing capacity, and all the vertices of the masts 212 are connected to form a parabolic shape. It can solve the continuous transmission of internal force of the cables at all levels to reach the first cable, so as to achieve the force requirements of the large-span structure. At the same time, the line of the apex of the mast 212 presents a curve, which can realize the perfect combination of the building and the structure.
  • the distance between the masts 212 close to the vertical force receiving member 11 is greater than that far away from the The distance between the masts 212 of the vertical force receiving member 11.
  • the layout and design of the primary cable assistant, secondary cable assistant, and multi-stage cable assistant in the entire secondary load-bearing structure 2 should be reasonable, and the spacing of each mast 212 should be set appropriately, and the overall appearance should be sparse and dense, so as to satisfy The overall structure's demand for bearing capacity.
  • the masts 212 are respectively arranged on two opposite sides in the length direction of the horizontal force receiving member 12, Moreover, the secondary load-bearing structure 2 is symmetrically arranged in the length and width directions of the horizontal force receiving member 12.
  • the projection surface of the horizontal force member 12 is generally square, and the structure of the mast 212 on the projection surface of the horizontal force member 12 is symmetrically arranged, that is, the entire secondary load-bearing structure 2 is symmetrical on the entire horizontal force member 12 Set up.
  • the vertical force receiving member 11 adopts a supporting column, and the supporting column is arranged vertically or inclined.
  • the horizontal force-receiving member 12 adopts a connecting beam, and the longitudinal cross-sectional shape of the connecting beam is linear or arc-shaped.
  • support columns generally refer to fixed support columns such as steel columns or cement columns
  • connecting beams refer to connecting beams made of steel beams or other metal parts.
  • the support column can be inclined at an appropriate angle, the bottom of which is fixed to the fixing member 3, and the top of which is hinged or rigidly connected to the connecting beam.
  • the shape of the longitudinal section of the connecting beam can be straight or curved, that is, the connecting beam can be a straight connecting beam or an arched beam.
  • the main load-bearing structure 1 can choose a frame structure, a truss structure, an arch structure, a grid structure, a reticulated shell structure, a membrane structure, or a thin shell structure. At this time, it can be ensured that the entire cable-assisted large-span structure has a better applicable surface, and provides a set of new structural solutions for the practical problems of super-large space construction.
  • innovative combinations of multiple structural forms can give play to their respective advantages, save costs, and endow The light form of the building.
  • the number of the main load-bearing structure 1 and the number of the secondary load-bearing structure 2 are both multiple, and the same
  • the adjacent primary load-bearing structures 1 are fixedly connected, and the adjacent secondary load-bearing structures 2 are connected by cables 211.
  • the entire cable-assisted large-span structure can be applied to the project in the form of a main load-bearing structure 1 and a secondary load-bearing structure 2, or the number of the main load-bearing structure 1 and the secondary load-bearing structure 2 can be set to multiple, and the main load-bearing structure
  • the structure 1 is a whole
  • the horizontal load-bearing member 12 can be welded or spliced, etc.
  • the vertical load-bearing member 11 can be arranged separately or in combination
  • the secondary load-bearing structures 2 can be connected by cables 211, which are located in the horizontal load-bearing member 12.
  • the outer side of the edge cable 211 can be fixedly connected with the upper surface of the other horizontal load-bearing member 12. At this time, the fixed connection between the secondary load-bearing structures 2 can be realized, and the combination method can be adjusted according to actual needs and specific needs. , Which can form a large-span spatial structure.
  • the present invention also provides a construction method for a cable-assisted large-span structure, which is used to build a cable-assisted large-span structure as in any one of the above.
  • the construction method of the cable-assisted large-span structure includes the following step:
  • the main load-bearing structure 1 is constructed, the bottom of the vertical force receiving member 11 is fixed to a fixing member 3, and the horizontal force receiving member 12 is hoisted to the top of the vertical force receiving member 11, and the The horizontal force receiving member 12 and the vertical force receiving member 11 are fixedly connected;
  • the mast 212 is installed, a reserved interface for fixing the mast 212 is reserved on the horizontal force member 12, the mast 212 is hoisted to the reserved interface, and the mast 212 and the Reserved interface for fixed connection;
  • the cable 211 is installed. After the cable 211 is unfolded, one end of the cable 211 is fixed to the fixing member 3 or the horizontal force-receiving member 12, and the cable is lifted by a single-point hoisting method. One end of the cable 211 passes through the top end of the mast 212, and the other end of the cable 211 is fixedly connected to the horizontal force member 12, so that the force on both sides of the mast 212 is symmetrical;
  • the cable 211 is stretched, and the cable 211 is stretched in sequence, and at the same time, the tension of the cable 211 located at the two ends of the horizontal force receiving member 12 is adjusted.
  • the secondary load-bearing structure 2 is arranged on the main load-bearing structure 1, the vertical load-bearing member 11 supports the horizontal load-bearing member 12, and the cable-assisted assembly 21 is set in the horizontal load-bearing structure.
  • a cable 211 is further used to pull up the horizontal force receiving member 12, thereby ensuring the stability of the horizontal force receiving member 12.
  • One end of the cable 211 is fixed to the fixing member 3, and the other end is fixed to the horizontal receiving member 3.
  • the force member 12 is supported and transferred by the mast 212 in the middle, which can realize the integration of the structural system and the architectural effect, so that the cable structure and other structures can be combined in an innovative manner, giving full play to their respective advantages, and the structure is reasonably stressed, giving the building a light form , And can set up a first-level cable-assisted structure or a multi-level cable-assisted structure according to the building form and structural load-bearing situation.
  • the vertical force member 11 is a steel column
  • the horizontal force member 12 is a steel beam.
  • the steel column is processed and the pier is anchored with a cable, and the steel column is hoisted to the anchor pier by a hoisting machine. Realize the fixed connection of the steel column.
  • suitable hoisting equipment is used for hoisting.
  • the inclination angle of the mast 212 is controlled by a chain hoist, so that the interface at the bottom of the mast 212 fits with the interface reserved on the upper surface of the horizontal force member 12.
  • After initial positioning temporarily fix it and then adjust and calibrate it, and perform interface node welding after completion. It is forbidden to loosen the hook of the crane rope during the welding process, and the hook can be loosened after the welding is completed and the code plate is welded in place.
  • the horizontal cable reel can be used for cable release. Set up a braking device for the cable reel. If necessary, a wire rope can be used as the tail cable. A small tricycle is used to slowly and stably unwind the cable, so as to avoid the elasticity of the cable reel and the eccentric force generated during traction. The rotation of the disc causes acceleration, which endangers the safety of the staff.
  • the purpose of unfolding the cable 211 in advance is the installation requirement, and the cable body can be stretched to dissipate the torsion force.
  • the mast 212 of the stay cable 211 is installed using the "single-point hoisting method", that is, after the cable 211 is deployed on the ground, a cable clamp is installed at about 0.5m from the anchor head of the stay cable 211 mast 212 to set a lifting point, and then the lifting device adopts an appropriate lifting device.
  • a cable clamp is installed at about 0.5m from the anchor head of the stay cable 211 mast 212 to set a lifting point, and then the lifting device adopts an appropriate lifting device.
  • For hoisting machinery use high-altitude vehicles to provide installation workers with an operating platform, and cooperate with the chain hoist to adjust the free end of the front end of the cable clamp to the angle of the design cable 211, so that the end of the cable 211 can enter the mast.
  • the lug plate on the 212 is inserted into the pin to lock it, and then the cable 211 on the other side of the mast 212 is installed to ensure that the mast 212 is symmetrically stressed.
  • a tension fixing point is set near the anchor lug plate at the beam end on the steel beam, and power measures such as a winch and a chain hoist are arranged, so as to set an angle adjustment bracket and a traction rope.
  • the adjusting nut of the cable 211 is loosened to make the length of the cable 211 slightly longer, which facilitates the installation of the lower end of the cable 211 on the beam.
  • the “hydraulic jack-oil pump” system is adopted during the tensioning, and the tension is controlled through the relationship of “oil pressure-force value”.
  • the tensioning sequence of the cable 211 is gradually extended from the cable 211 on both sides of the steel beam to the cable 211 on the inner side of the steel beam, and each time two symmetrical cables 211 are stretched, the tension on both sides should be Synchronization is performed symmetrically to ensure symmetry.
  • the steel beam support should be removed before subsequent tensioning construction.
  • the tension error of the control cable force is within ⁇ 5%.
  • the horizontal force receiving member 12 is manufactured in sections in a factory, and is provided on one side of the vertical force receiving member 11. Temporary support: hoist several horizontal force-receiving parts 12 to said vertical force-receiving part 11 and said temporary support in turn, and fix and connect several horizontal force-receiving parts 12 to each other. The temporary support is removed.
  • the horizontal force-bearing member 12 is a steel beam, and the steel beam is pre-manufactured in sections in the factory, which can facilitate transportation and hoisting operations.

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Abstract

Disclosed are a cable-supported large-span structure and a construction method therefor. The cable-supported large-span structure comprises a primary bearing structure (1) and a secondary bearing structure (2), wherein the primary bearing structure (1) comprises vertical force-bearing members (11) and a horizontal force-bearing member (12) fixed at the top ends of the vertical force-bearing members (11); the horizontal force-bearing member (12) is erected on at least two vertical force-bearing members (11); the secondary bearing structure (2) comprises at least one cable-supported assembly (21); each stage of cable-supported assembly (21) comprises a stay cable (211), and a mast (212) vertically arranged on the horizontal force-bearing member (12); and one end of each of the stay cables (211) is fixed to a fixing member (3) or the horizontal force-bearing member (12), and the other end thereof is fixed to the horizontal force-bearing member (12) by means of the top of the mast (212). The secondary bearing structure (2) is arranged on the primary bearing structure (1), and the horizontal force-bearing member (12) is pulled up using the stay cables (211), such that the stability of the horizontal force-bearing member (12) is ensured. A structural system and a building effect can be integrated, such that a cable structure and other structures can be combined in an innovative way in order to exert their respective advantages, and a one-stage cable-supported assembly or a multi-stage cable-supported structure can be arranged according to the building form and the structure bearing condition.

Description

索辅大跨结构及其施工方法Cable auxiliary large-span structure and its construction method 技术领域Technical field
本发明涉及空间结构建筑的技术领域,具体涉及一种索辅大跨结构及其施工方法。The invention relates to the technical field of space structure buildings, in particular to a cable-assisted large-span structure and a construction method thereof.
背景技术Background technique
在我国钢结构规范中,跨度超过60米的空间结构体系称为大跨度结构建筑,目前大跨度空间结构体系常用形式有网架结构、网壳结构、悬索结构、膜结构和薄壳结构等。形态各异的空间结构在体育场馆、会展中心、高铁站房、空港航站楼等建筑中得到了广泛的应用。In my country's steel structure specifications, the space structure system with a span of more than 60 meters is called a large-span structure building. At present, the commonly used forms of large-span space structure systems include grid structure, reticulated shell structure, suspension cable structure, membrane structure and thin shell structure, etc. . Various spatial structures have been widely used in buildings such as stadiums, convention and exhibition centers, high-speed railway station buildings, and airport terminals.
现有建筑斜拉结构一般由立柱、屋盖平面结构、索系及锚固基础组成,主要有单索面或双索面结构,立柱与屋盖平面结构、立柱与锚固基础间采用单根或多根索结构,即采用单级索系连接,随着结构的跨度增大,索的数量和长度增加。当索结构用于建筑物屋盖时,索结构宜选用悬索结构、斜拉结构、张弦结构或索穹顶。但是,超大空间的建筑随着跨度的增大,单类型的结构使用的材料等级要求越来越高,且截面需求越来越大,不经济且不易建造。The cable-stayed structure of the existing building generally consists of a column, a roof plane structure, a cable system and an anchoring foundation. There are mainly single-cable plane or double-cable plane structures. The column and the roof plane structure, and the column and the anchoring foundation adopt single or multiple cables. Root cable structure, which is connected by a single-stage cable system. As the span of the structure increases, the number and length of cables increase. When the cable structure is used for the roof of a building, the cable structure should be a suspension cable structure, a cable-stayed structure, a string structure or a cable dome. However, as the span of a building with a large space increases, the material grade requirements for a single type of structure are getting higher and higher, and the cross-section requirements are getting larger and larger, which is uneconomical and difficult to build.
公开号为CN109629693A的中国专利申请,其公开了一种大跨度自锚式正交悬索结构,其包括主承重结构和次承重结构,所述主承重结构包括多个平行间隔设置的悬索架,所述次承重结构包括多个平行间隔设置的索桁 架,且多个所述索桁架沿所述悬索架的延伸方向垂直设置于所述悬索架上。但是,采用该结构仅可以满足部分大跨度建筑,但是无法满足特殊造型建筑或构筑物的需求。The Chinese patent application with publication number CN109629693A discloses a large-span self-anchored orthogonal suspension cable structure, which includes a main load-bearing structure and a secondary load-bearing structure, and the main load-bearing structure includes a plurality of suspension cables arranged at intervals in parallel The secondary load-bearing structure includes a plurality of cable trusses arranged at intervals in parallel, and the plurality of cable trusses are vertically arranged on the suspension cable frame along the extension direction of the suspension cable frame. However, the use of this structure can only meet some large-span buildings, but cannot meet the needs of special-shaped buildings or structures.
发明内容Summary of the invention
本发明的目的在于提供一种索辅大跨结构及其施工方法,以解决现有技术中大跨度结构无法满足特殊造型建筑或构筑物需要的技术问题。The purpose of the present invention is to provide a cable-assisted large-span structure and a construction method thereof, so as to solve the technical problem that the large-span structure in the prior art cannot meet the needs of special-shaped buildings or structures.
为实现上述目的,本发明采用的技术方案是:提供一种索辅大跨结构,包括:主承重结构和次承重结构,所述主承重结构包括竖向受力件和固定于所述竖向受力件顶端的水平受力件,所述水平受力件架设于至少两个所述竖直受力件上;所述次承重结构包括至少一个索辅组件,每一级所述索辅组件均包括拉索和竖直设于所述水平受力件上的桅杆,所述拉索的一端固定于固定件或所述水平受力件上,另一端经所述桅杆的顶端固定于所述水平受力件上。In order to achieve the above-mentioned objective, the technical solution adopted by the present invention is to provide a cable-assisted large-span structure, including: a main load-bearing structure and a secondary load-bearing structure, the main load-bearing structure includes a vertical force-bearing member and is fixed to the vertical The horizontal force-receiving member at the top end of the force-receiving member, the horizontal force-receiving member is erected on at least two of the vertical force-receiving members; the secondary load-bearing structure includes at least one cable-assisted component, and each level of the cable-assisted component Each includes a cable and a mast vertically arranged on the horizontal force-bearing member. One end of the cable is fixed to the fixing member or the horizontal force-bearing member, and the other end is fixed to the mast through the top end of the mast. On the horizontal force member.
进一步地,所述索辅组件包括一级索辅,所述一级索辅的所述桅杆分别位于水平受力件的四个角,所述拉索的一端固定于固定件上,另一端经所述桅杆的顶端固定于所述水平受力件上。Further, the cable-assisted assembly includes a primary cable-assisted, the masts of the primary cable-assisted are respectively located at four corners of the horizontal force-bearing member, one end of the cable is fixed to the fixing member, and the other end is The top end of the mast is fixed on the horizontal force-bearing member.
进一步地,所述索辅组件还包括二级索辅,所述二级索辅的所述桅杆设于所述一级索辅的所述拉索和所述水平受力件的连接处;Further, the cable-assisted assembly further includes a secondary cable-assisted, and the mast of the secondary cable-assisted is provided at the connection between the stay cable of the primary cable-assisted and the horizontal force-receiving member;
所述二级索辅的所述拉索的一端固定于所述一级索辅的所述桅杆的底部,另一端穿过所述二级索辅的所述桅杆的顶部固定于所述水平受力件上。One end of the stay cable of the secondary cable assistant is fixed to the bottom of the mast of the primary cable assistant, and the other end passes through the top of the mast of the secondary cable assistant and is fixed to the horizontal receiving device. On the force piece.
进一步地,所述索辅组件还包括多级索辅,所述多级索辅的所述桅杆 设于上一级索辅的所述拉索和所述水平受力件的连接处;Further, the cable-assisted assembly further includes a multi-stage cable-assisted, and the mast of the multi-stage cable-assisted is provided at the connection between the stay cable of the upper-level cable-assisted and the horizontal force-receiving member;
所述多级索辅的所述拉索的一端固定于上一级索辅的所述桅杆的底部,另一端穿过所述多级索辅的所述桅杆的顶部固定于所述水平受力件上。One end of the guy cable of the multi-stage cable assistant is fixed to the bottom of the mast of the upper-stage cable assistant, and the other end passes through the top of the mast of the multi-stage cable assistant and is fixed to the horizontal force Pieces.
进一步地,在所述二级索辅中,在所述二级索辅和所述多级索辅中,所述拉索均以所述桅杆对称设置。Further, in the two-stage cable assistant, in the two-stage cable assistant and the multi-stage cable assistant, the stay cables are symmetrically arranged with the mast.
进一步地,所述一级索辅的所述桅杆的高度大于所述二级索辅的所述桅杆的高度;所述二级索辅的所述桅杆的高度大于所述多级索辅的所述桅杆的高度。Further, the height of the mast of the primary cable assistant is greater than the height of the mast of the secondary cable assistant; the height of the mast of the secondary cable assistant is greater than that of the multi-stage cable assistant. State the height of the mast.
进一步地,靠近所述竖直受力件的所述桅杆之间的间距大于远离所述竖直受力件的所述桅杆之间的间距。Further, the distance between the masts close to the vertical force member is greater than the distance between the masts far away from the vertical force member.
进一步地,所述桅杆分别设于所述水平受力件长度方向上的相对两侧面,且所述次承重结构在所述水平受力件的长度和宽度方向上均为对称设置。Further, the masts are respectively arranged on two opposite sides in the length direction of the horizontal force-bearing member, and the secondary load-bearing structure is symmetrically disposed in the length and width directions of the horizontal force-bearing member.
进一步地,所述竖向受力件采用支撑柱,所述支撑柱竖直设置或倾斜设置;所述水平受力件采用连接梁,所述连接梁的纵截面形状为直线型或弧线形。Further, the vertical force-receiving member adopts a support column, which is arranged vertically or obliquely; the horizontal force-receiving member adopts a connecting beam, and the longitudinal cross-sectional shape of the connecting beam is linear or arc-shaped. .
进一步地,所述主承重结构和所述次承重结构的数量均为多个,且相邻的所述主承重结构之间固定连接,相邻的所述次承重结构之间通过拉索相连接。Further, the number of the main load-bearing structure and the secondary load-bearing structure are both multiple, and the adjacent main load-bearing structures are fixedly connected, and the adjacent secondary load-bearing structures are connected by cables .
本发明还公开了一种索辅大跨结构的施工方法,用于搭建如上所述索辅大跨结构,所述施工方法包括如下步骤:The invention also discloses a construction method of a cable-assisted large-span structure, which is used to build the above-mentioned cable-assisted large-span structure, and the construction method includes the following steps:
主承重结构施工,将所述竖向受力件底部进行固定至一固定件上,并将所述水平受力件吊装至所述竖向受力件的顶部,并将所述水平受力件和 所述竖向受力件固定连接;In the construction of the main load-bearing structure, the bottom of the vertical load-bearing member is fixed to a fixing member, and the horizontal load-bearing member is hoisted to the top of the vertical load-bearing member, and the horizontal load-bearing member Fixedly connected with the vertical force-receiving member;
桅杆安装,在所述水平受力件上预留用于固定所述桅杆的预留接口,将所述桅杆吊装至所述预留接口上,并将所述桅杆和所述预留接口固定连接;Mast installation, reserve a reserved interface for fixing the mast on the horizontal force member, hoist the mast to the reserved interface, and fixedly connect the mast and the reserved interface ;
拉索安装,将所述拉索展开后,将所述拉索的一端固定于所述固定件上或所述水平受力件上,并采用单点吊法将所述拉索的一端穿过所述桅杆的顶端,再将所述拉索的另一端和所述水平受力件固定连接,使得所述桅杆的两侧受力对称;Cable installation, after unfolding the cable, fix one end of the cable to the fixing member or the horizontal force-receiving member, and use a single-point hoisting method to pass one end of the cable through The top end of the mast is fixedly connected to the other end of the cable and the horizontal force-receiving member, so that the forces on both sides of the mast are symmetrical;
拉索张拉施工,依次对所述拉索进行张拉,同时对位于所述水平受力件两端的所述拉索进行张拉力的调整。In the cable tensioning construction, the cables are sequentially stretched, and at the same time, the tension of the cables at the two ends of the horizontal force-bearing member is adjusted.
进一步地,所述水平受力件在工厂内分段制造,在所述竖向受力件的一侧设置临时支承件,依次将若干所述水平受力件吊装至所述竖向受力件和所述临时支承件上,并将若干所述水平受力件之间固定连接,最后将所述临时支承件拆除。Further, the horizontal force-receiving member is manufactured in sections in a factory, a temporary support is provided on one side of the vertical force-receiving member, and several horizontal force-receiving members are hoisted to the vertical force-receiving member in sequence And the temporary support, and fixedly connect a number of the horizontal stress members, and finally remove the temporary support.
本发明提供的索辅大跨结构及其施工方法的有益效果在于:与现有技术相比,本发明索辅大跨结构及其施工方法,将次承重结构设置在主承重结构上,竖向受力件对水平受力件进行支撑,索辅组件设置在水平受力件的上方,进一步的利用拉索对水平受力件进行拉升,从而保证水平受力件的稳定性,拉索的一端固定于固定件上,另一端固定于水平受力件上,且中间由桅杆进行支撑和中转,能够实现结构体系和建筑效果融合一体,使得索结构和其他结构可以进行创新组合,发挥各自优势,结构受力合理,赋予建筑轻盈的形态,并且可以根据建筑形态和结构承重情况设置一级索辅组件或多级索辅结构。The beneficial effect of the cable-assisted large-span structure and its construction method provided by the present invention is that: compared with the prior art, the cable-assisted large-span structure and the construction method of the present invention arrange the secondary load-bearing structure on the main load-bearing structure, The force-receiving member supports the horizontal force-receiving member, and the cable auxiliary component is arranged above the horizontal force-receiving member, and the horizontal force-receiving member is further pulled up by the cable to ensure the stability of the horizontal force-receiving member. One end is fixed to the fixed part, the other end is fixed to the horizontal force-bearing part, and the middle is supported and transferred by the mast, which can realize the integration of the structural system and the architectural effect, so that the cable structure and other structures can be innovatively combined to give play to their respective advantages , The structural force is reasonable, giving the building a light form, and can be set up with a first-level cable auxiliary component or a multi-level cable auxiliary structure according to the building form and structural load-bearing situation.
附图说明Description of the drawings
为了更清楚地说明本发明具体实施方式或现有技术中的技术方案,下面将对具体实施方式或现有技术描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图是本发明的一些实施方式,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings that need to be used in the specific embodiments or the description of the prior art. Obviously, the appendix in the following description The drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work.
图1为本发明实施例提供的索辅大跨结构为一级索辅时的结构示意图;FIG. 1 is a schematic structural diagram when the cable-assisted large-span structure provided by an embodiment of the present invention is a primary cable-assisted;
图2为本发明实施例提供的索辅大跨结构为二级索辅时的结构示意图;2 is a schematic structural diagram when the cable-assisted large-span structure provided by an embodiment of the present invention is a secondary cable-assisted;
图3为本发明实施例提供的索辅大跨结构为三级索辅时的结构示意图;FIG. 3 is a schematic structural diagram when the cable-assisted large-span structure provided by the embodiment of the present invention is a three-stage cable-assisted;
图4为本发明实施例提供的索辅大跨结构为四级索辅时的结构示意图;4 is a schematic structural diagram when the cable-assisted large-span structure provided by the embodiment of the present invention is a four-stage cable-assisted;
图5为本发明实施例提供的索辅大跨结构的立体结构示意图一;FIG. 5 is a schematic diagram 1 of a three-dimensional structure of a cable-assisted large-span structure provided by an embodiment of the present invention;
图6为本发明实施例提供的索辅大跨结构的立体结构示意图二;6 is a schematic diagram 2 of a three-dimensional structure of a cable-assisted large-span structure provided by an embodiment of the present invention;
图7为本发明实施例提供的索辅大跨结构的立体结构示意图三;FIG. 7 is a three-dimensional schematic diagram three of a cable-assisted large-span structure provided by an embodiment of the present invention;
图8为本发明实施例提供的索辅大跨结构的立体结构示意图四;FIG. 8 is a fourth schematic diagram of a three-dimensional structure of a cable-assisted large-span structure provided by an embodiment of the present invention;
图9为本发明实施例提供的索辅大跨结构的立体结构示意图五;FIG. 9 is a five-dimensional schematic diagram of a three-dimensional structure of a cable-assisted large-span structure provided by an embodiment of the present invention;
图10为本发明实施例提供的索辅大跨结构的结构示意图。Fig. 10 is a schematic structural diagram of a cable-assisted large-span structure provided by an embodiment of the present invention.
附图标记说明:Description of reference signs:
1、主承重结构;2、次承重结构;3、固定件;11、竖向受力件;12、水平受力件;21、索辅组件;211、拉索;212、桅杆。1. Main load-bearing structure; 2. Secondary load-bearing structure; 3. Fixed parts; 11. Vertical load-bearing parts; 12. Horizontal load-bearing parts; 21. Cable auxiliary components; 211. Stay cables; 212. Masts.
具体实施方式detailed description
下面将结合附图对本发明的技术方案进行清楚、完整地描述,显然, 所描述的实施例是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
在本发明的描述中,需要说明的是,术语“中心”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系,仅是为了便于描述本发明和简化描述,而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作,因此不能理解为对本发明的限制。此外,术语“第一”、“第二”、“第三”仅用于描述目的,而不能理解为指示或暗示相对重要性。In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the pointed device or element must have a specific orientation or a specific orientation. The structure and operation cannot therefore be understood as a limitation of the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance.
在本发明的描述中,需要说明的是,除非另有明确的规定和限定,术语“安装”、“相连”、“连接”应做广义理解,例如,可以是固定连接,也可以是可拆卸连接,或一体地连接;可以是机械连接,也可以是电连接;可以是直接相连,也可以通过中间媒介间接相连,可以是两个元件内部的连通。对于本领域的普通技术人员而言,可以具体情况理解上述术语在本发明中的具体含义。In the description of the present invention, it should be noted that the terms "installation", "connected" and "connected" should be interpreted broadly unless otherwise clearly specified and limited. For example, it can be a fixed connection or a detachable connection. Connected or integrally connected; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication between two components. For those of ordinary skill in the art, the specific meanings of the above-mentioned terms in the present invention can be understood in specific situations.
此外,下面所描述的本发明不同实施方式中所涉及的技术特征只要彼此之间未构成冲突就可以相互结合。In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
请一并参阅图1至图4,现对本发明提供的索辅大跨结构进行说明。所述索辅大跨结构,包括主承重结构1和次承重结构2,所述主承重结构1包括竖向受力件11和固定于所述竖向受力件11顶端的水平受力件12,所述水平受力件12架设于至少两个所述竖向受力件11上;所述次承重结构2包括至少一个索辅组件21,每一级所述索辅组件21均包括拉索211和竖直 设于所述水平受力件12上的桅杆212,所述拉索211的一端固定于固定件3或所述水平受力件12上,另一端经所述桅杆212的顶端固定于所述水平受力件12上。Please refer to FIGS. 1 to 4 together, and now the cable-supplied large-span structure provided by the present invention will be described. The cable-assisted long-span structure includes a main load-bearing structure 1 and a secondary load-bearing structure 2. The main load-bearing structure 1 includes a vertical force-receiving member 11 and a horizontal force-receiving member 12 fixed to the top of the vertical force-receiving member 11 The horizontal force-receiving member 12 is erected on at least two of the vertical force-receiving members 11; the secondary load-bearing structure 2 includes at least one cable-assisted component 21, and each level of the cable-assisted component 21 includes a cable 211 and a mast 212 vertically arranged on the horizontal force member 12, one end of the cable 211 is fixed on the fixing member 3 or the horizontal force member 12, and the other end is fixed by the top end of the mast 212 On the horizontal force-receiving member 12.
本发明提供的索辅大跨结构,与现有技术相比,将次承重结构2设置在主承重结构1上,竖向受力件11对水平受力件12进行支撑,索辅组件21设置在水平受力件12的上方,进一步的利用拉索211对水平受力件12进行拉升,从而保证水平受力件12的稳定性,拉索211的一端固定于固定件3上,另一端固定于水平受力件12上,且中间由桅杆212进行支撑和中转,能够实现结构体系和建筑效果融合一体,使得索结构和其他结构可以进行创新组合,发挥各自优势,结构受力合理,赋予建筑轻盈的形态,并且可以根据建筑形态和结构承重情况设置一级索辅结构或多级索辅结构。Compared with the prior art, the cable-assisted large-span structure provided by the present invention is that the secondary load-bearing structure 2 is arranged on the main load-bearing structure 1, the vertical load-bearing member 11 supports the horizontal load-bearing member 12, and the cable-assisted assembly 21 is provided Above the horizontal force-receiving member 12, a cable 211 is further used to pull up the horizontal force-receiving member 12 to ensure the stability of the horizontal force-receiving member 12. One end of the cable 211 is fixed to the fixing member 3, and the other end It is fixed on the horizontal force member 12 and supported and transferred by the mast 212 in the middle, which can realize the integration of the structural system and the architectural effect, so that the cable structure and other structures can be combined in an innovative manner, giving full play to their respective advantages, and the structural force is reasonable. The shape of the building is light, and one-level cable-assisted structure or multi-level cable-assisted structure can be set according to the building form and structural load-bearing situation.
具体的,主承重结构1可以选用框架结构、桁架结构、拱结构、网架结构、网壳结构、膜结构或薄壳结构等中的一种或多种。主承重结构1与次承重结构2组合后,增大整体结构的空间跨度。根据整体结构需求,次承重结构2的索辅组件21可选择为一级索辅组件21,也可选择多级索辅组件21,其中多级索辅组件21的级数不作限定。Specifically, the main load-bearing structure 1 may select one or more of frame structure, truss structure, arch structure, grid structure, reticulated shell structure, membrane structure, or thin shell structure. After the main load-bearing structure 1 and the secondary load-bearing structure 2 are combined, the spatial span of the overall structure is increased. According to the overall structural requirements, the cable-assisted component 21 of the secondary load-bearing structure 2 can be selected as a primary cable-assisted component 21 or a multi-stage cable-assisted component 21, wherein the number of stages of the multi-stage cable-assisted component 21 is not limited.
进一步地,请一并参阅图1,作为本发明提供的索辅大跨结构的一种具体实施方式,所述索辅组件21包括一级索辅,所述一级索辅的所述桅杆212分别位于水平受力件12的四个角,所述拉索211的一端固定于固定件3上,另一端经所述桅杆212的顶端固定于所述水平受力件12上。具体的,水平受力件12的形状为方形的结构。一级索辅包括四个桅杆212,且四个桅杆212分别位于水平受力件12的外缘边角,拉索211的数量也为四个,且每 个拉索211对应一个桅杆212,拉索211的一端固定于固定件3上,另一端固定于水平受力件12上,其中固定件3指基础件,一般为地面或固定在地面上的固定部件。其中,桅杆212可以直接设置在竖向受力件11的正上方或者与竖向受力件11固定连接或焊接等。Further, please refer to FIG. 1 together, as a specific implementation of the cable-assisted large-span structure provided by the present invention, the cable-assisted assembly 21 includes a primary cable-assisted, and the mast 212 of the primary cable-assisted They are respectively located at the four corners of the horizontal force-receiving member 12, one end of the cable 211 is fixed to the fixing member 3, and the other end is fixed to the horizontal force-receiving member 12 via the top end of the mast 212. Specifically, the shape of the horizontal force receiving member 12 is a square structure. The first-level cable accessory includes four masts 212, and the four masts 212 are respectively located at the outer edge corners of the horizontal force member 12. The number of cables 211 is also four, and each cable 211 corresponds to a mast 212. One end of the cable 211 is fixed to the fixing member 3, and the other end is fixed to the horizontal force-receiving member 12. The fixing member 3 refers to a base member, which is generally a ground or a fixed member fixed on the ground. Wherein, the mast 212 may be directly arranged directly above the vertical force receiving member 11 or may be fixedly connected or welded with the vertical force receiving member 11.
其中,桅杆212的立杆方向与竖向受力件11一致,底部与水平受力件12刚接,外侧的拉索211锚固在基础上,内侧的拉索211与水平受力件12斜拉连接,其内外侧拉索211与桅杆212的夹角可根据结构需求进行调整。Among them, the mast 212 has the same upright direction as the vertical force-receiving member 11, the bottom is just connected to the horizontal force-receiving member 12, the outer cable 211 is anchored on the foundation, and the inner cable 211 and the horizontal force-receiving member 12 are diagonally pulled. For connection, the angle between the inner and outer cables 211 and the mast 212 can be adjusted according to structural requirements.
进一步地,请参阅图2,作为本发明提供的索辅大跨结构的一种具体实施方式,所述索辅组件21还包括二级索辅,所述二级索辅的所述桅杆212设于所述一级索辅的所述拉索211和所述水平受力件12的连接处;所述二级索辅的所述拉索211的一端固定于所述一级索辅的所述桅杆212的底部,另一端穿过所述二级索辅的所述桅杆212的顶部固定于所述水平受力件12上。具体的,二级索辅设置在一级索辅的内侧,且二级索辅也包括四个桅杆212和四个拉索211,其中拉索211的两端均和水平受力件12固定连接,拉索211的一端设置在一级索辅的桅杆212下,从而使得一级索辅和二级索辅可以相配合的对水平受力件12进行支撑,并且保证水平受力件12上的受力均匀。二级索辅的桅杆212与一级索辅的桅杆212的立杆方向应协调适宜,且底部与水平受力件12刚接。Further, please refer to FIG. 2, as a specific embodiment of the cable-assisted long-span structure provided by the present invention, the cable-assisted assembly 21 further includes a secondary cable-assisted structure, and the mast 212 of the secondary cable-assisted At the junction of the cable 211 of the primary cable assistant and the horizontal force-receiving member 12; one end of the cable 211 of the secondary cable assistant is fixed to the The bottom of the mast 212 and the other end of the mast 212 passing through the top of the secondary cable are fixed on the horizontal force-bearing member 12. Specifically, the secondary cable assistant is arranged inside the primary cable assistant, and the secondary cable assistant also includes four masts 212 and four cables 211, wherein both ends of the cable 211 are fixedly connected to the horizontal force receiving member 12 , One end of the cable 211 is set under the mast 212 of the primary cable assistant, so that the primary cable assistant and the secondary cable assistant can cooperate to support the horizontal force-bearing member 12, and ensure that the horizontal force-bearing member 12 Even by force. The vertical direction of the mast 212 of the secondary cable assistant and the mast 212 of the primary cable assistant should be coordinated appropriately, and the bottom is just connected to the horizontal force member 12.
进一步地,参阅图3及图4,作为本发明提供的索辅大跨结构的一种具体实施方式,所述索辅组件21还包括多级索辅,所述多级索辅的所述桅杆212设于上一级索辅的所述拉索211和所述水平受力件12的连接处;所述多级索辅的所述拉索211的一端固定于上一级索辅的所述桅杆212的底部, 另一端穿过所述多级索辅的所述桅杆212的顶部固定于所述水平受力件12上。具体的,多级索辅是指三个或三个以上级数的索辅,且多级索辅相当于一个或多个二级索辅。多级索辅设置在二级索辅的内侧,且下一级索辅的位置设于上一级索辅的内侧,且每一级索辅均包括四个桅杆212和四个拉索211,其中拉索211的两端均和水平受力件12固定连接,拉索211的一端设置在上一级索辅的桅杆212下,从而使得上一级的索辅和下一级的索辅可以相配合的对水平受力件12进行支撑,并且保证水平受力件12上的受力均匀。多级索辅的桅杆212与一级索辅和二级索辅的桅杆212的立杆方向应协调适宜,且底部与水平受力件12刚接。通过多级索辅共同组合成构建大空间所需的多级索辅大跨结构。Further, referring to FIGS. 3 and 4, as a specific implementation of the cable-assisted large-span structure provided by the present invention, the cable-assisted assembly 21 further includes a multi-stage cable-assisted mast. 212 is set at the connection between the stay cable 211 of the upper-level cable assistant and the horizontal force-receiving member 12; one end of the stay cable 211 of the multi-stage cable assistant is fixed to the upper-level cable assistant. The bottom of the mast 212 and the other end pass through the top of the mast 212 of the multi-stage cable and are fixed on the horizontal force-bearing member 12. Specifically, multi-level cable assistance refers to three or more levels of cable assistance, and multi-level cable assistance is equivalent to one or more secondary cable assistance. The multi-stage cable assistant is set on the inner side of the second cable assistant, and the position of the next cable assistant is set on the inner side of the upper cable assistant, and each grade of cable assistant includes four masts 212 and four cables 211. Both ends of the cable 211 are fixedly connected to the horizontal force-receiving member 12, and one end of the cable 211 is set under the mast 212 of the upper-level cable-assisted, so that the upper-level cable-assisted and the lower-level cable-assisted can be The horizontal force-receiving member 12 is supported in cooperation, and the force on the horizontal force-receiving member 12 is ensured to be uniform. The vertical direction of the mast 212 of the multi-stage cable assistant and the mast 212 of the first cable assistant and the second cable assistant should be coordinated appropriately, and the bottom is just connected to the horizontal force member 12. The multi-level cable-assisted large-span structure required to construct a large space is formed by the multi-level cable-assisted combination.
进一步地,请参阅图1至图4,作为本发明提供的索辅大跨结构的一种具体实施方式,在所述二级索辅中,在所述二级索辅和所述多级索辅中,所述拉索211均以所述桅杆212对称设置。具体的,每一级的索辅的拉索211均可以形成等腰三角形,即位于桅杆212两侧的拉索211的长度和角度均相等,可以保证拉索211两侧的力平均,即可以保证水平受力件12上的受力均匀,还可以使得拉索211上的拉力平均增长拉索211的使用寿命。Further, please refer to Figures 1 to 4, as a specific implementation of the cable-assisted large-span structure provided by the present invention, in the secondary cable-assisted, in the secondary cable-assisted and the multi-stage cable-assisted In the auxiliary, the cables 211 are symmetrically arranged with the mast 212. Specifically, the cables 211 of each level of cable support can form an isosceles triangle, that is, the length and angle of the cables 211 on both sides of the mast 212 are equal, which can ensure that the forces on both sides of the cable 211 are equal, that is, It is ensured that the force on the horizontal force receiving member 12 is uniform, and the pulling force on the cable 211 can also increase the service life of the cable 211 on average.
进一步地,请参阅图1至图4,作为本发明提供的索辅大跨结构的一种具体实施方式,所述一级索辅的所述桅杆212的高度大于所述二级索辅的所述桅杆212的高度;所述二级索辅的所述桅杆212的高度大于所述多级索辅的所述桅杆212的高度。具体的,多级索辅大跨结构的一级索辅结构对整体结构承载力贡献最大,二级索辅的对整个结构的承载力次之,级数排序越靠后的索辅结构对整体结构承载力贡献值越小,直至影响接近于零。 因此将桅杆212的高度逐渐降低,此时可以满足整体结构承载力的需求,并且所有桅杆212顶点连线,呈现抛物线形状。可以解决各级索辅连续传递内力以到达一级索辅,从而实现大跨结构受力要求,同时桅杆212顶点连线呈现曲线,可实现建筑与结构完美结合。Further, please refer to Figures 1 to 4, as a specific implementation of the cable-assisted large-span structure provided by the present invention, the height of the mast 212 of the primary cable-assisted is greater than the height of the secondary cable-assisted. The height of the mast 212; the height of the mast 212 of the secondary cable assistant is greater than the height of the mast 212 of the multi-stage cable assistant. Specifically, the primary cable-assisted structure of the multi-level cable-assisted large-span structure contributes the most to the overall structural bearing capacity, the secondary cable-assisted structure has the second highest bearing capacity of the entire structure, and the cable-assisted structure with the lower order of the series contributes the most to the overall structure. The smaller the contribution of structural bearing capacity is, until the impact is close to zero. Therefore, the height of the mast 212 is gradually reduced to meet the requirements of the overall structural bearing capacity, and all the vertices of the masts 212 are connected to form a parabolic shape. It can solve the continuous transmission of internal force of the cables at all levels to reach the first cable, so as to achieve the force requirements of the large-span structure. At the same time, the line of the apex of the mast 212 presents a curve, which can realize the perfect combination of the building and the structure.
进一步地,请参阅图1至图4,作为本发明提供的索辅大跨结构的一种具体实施方式,靠近所述竖向受力件11的所述桅杆212之间的间距大于远离所述竖向受力件11的所述桅杆212之间的间距。具体的,整个次承重结构2中的一级索辅、二级索辅和多级索辅的布置和设计应合理,各桅杆212的间距需要设置适宜,总体呈现外疏内密的特点,从而满足整体结构对承载力的需求。Further, please refer to FIGS. 1 to 4, as a specific embodiment of the cable-assisted large-span structure provided by the present invention, the distance between the masts 212 close to the vertical force receiving member 11 is greater than that far away from the The distance between the masts 212 of the vertical force receiving member 11. Specifically, the layout and design of the primary cable assistant, secondary cable assistant, and multi-stage cable assistant in the entire secondary load-bearing structure 2 should be reasonable, and the spacing of each mast 212 should be set appropriately, and the overall appearance should be sparse and dense, so as to satisfy The overall structure's demand for bearing capacity.
进一步地,请参阅图5至图8,作为本发明提供的索辅大跨结构的一种具体实施方式,所述桅杆212分别设于所述水平受力件12长度方向上的相对两侧面,且所述次承重结构2在所述水平受力件12的长度和宽度方向上均为对称设置。具体的,水平受力件12的投影面一般为方形的,桅杆212在水平受力件12的投影面上的结构为对称设置的,即整个次承重结构2在整个水平受力件12上对称设置。Further, referring to FIGS. 5 to 8, as a specific embodiment of the cable-assisted large-span structure provided by the present invention, the masts 212 are respectively arranged on two opposite sides in the length direction of the horizontal force receiving member 12, Moreover, the secondary load-bearing structure 2 is symmetrically arranged in the length and width directions of the horizontal force receiving member 12. Specifically, the projection surface of the horizontal force member 12 is generally square, and the structure of the mast 212 on the projection surface of the horizontal force member 12 is symmetrically arranged, that is, the entire secondary load-bearing structure 2 is symmetrical on the entire horizontal force member 12 Set up.
进一步地,请参阅图1至图8,作为本发明提供的索辅大跨结构的一种具体实施方式,所述竖向受力件11采用支撑柱,所述支撑柱竖直设置或倾斜设置;所述水平受力件12采用连接梁,所述连接梁的纵截面形状为直线型或弧线形。具体的,支撑柱一般指钢柱或水泥柱等固定支撑柱,连接梁指钢梁或其他金属件制成的连接梁。其中,支撑柱可倾斜适当角度,其底部与固定件3固接,顶端与连接梁铰接或刚接。连接梁的纵截面形状可为 直线形或弧线形,即连接梁可以为平直连接梁或拱形梁。主承重结构1可选用框架结构、桁架结构、拱结构、网架结构、网壳结构、膜结构或薄壳结构等。此时可以保证整个索辅大跨结构具有较好的适用面,为超大空间建筑实践难题提供了一套新的结构解决方案,将多种结构形式进行创新组合,发挥各自优势,节约成本,赋予建筑轻盈的形态。Further, please refer to Figures 1 to 8, as a specific embodiment of the cable-assisted large-span structure provided by the present invention, the vertical force receiving member 11 adopts a supporting column, and the supporting column is arranged vertically or inclined. The horizontal force-receiving member 12 adopts a connecting beam, and the longitudinal cross-sectional shape of the connecting beam is linear or arc-shaped. Specifically, support columns generally refer to fixed support columns such as steel columns or cement columns, and connecting beams refer to connecting beams made of steel beams or other metal parts. Among them, the support column can be inclined at an appropriate angle, the bottom of which is fixed to the fixing member 3, and the top of which is hinged or rigidly connected to the connecting beam. The shape of the longitudinal section of the connecting beam can be straight or curved, that is, the connecting beam can be a straight connecting beam or an arched beam. The main load-bearing structure 1 can choose a frame structure, a truss structure, an arch structure, a grid structure, a reticulated shell structure, a membrane structure, or a thin shell structure. At this time, it can be ensured that the entire cable-assisted large-span structure has a better applicable surface, and provides a set of new structural solutions for the practical problems of super-large space construction. Innovative combinations of multiple structural forms can give play to their respective advantages, save costs, and endow The light form of the building.
进一步地,请参阅图9及图10,作为本发明提供的索辅大跨结构的一种具体实施方式,所述主承重结构1和所述次承重结构2的数量均为多个,且相邻的所述主承重结构1之间固定连接,相邻的所述次承重结构2之间通过拉索211相连接。具体的,整个索辅大跨结构可以由一个主承重结构1和次承重结构2的形式运用于工程,也可以将主承重结构1和次承重结构2的数量均设置为多个,且主承重结构1为一个整体,水平受力件12可以焊接或拼接等,竖向受力件11可以单独设置或合并设置,次承重结构2之间通过拉索211可以实现连接,位于水平受力件12边缘的拉索211的外侧可以与另一个水平受力件12的上表面固定连接,此时可以实现次承重结构2之间的固定连接,此时的组合方式可以根据实际需求和具体需求进行调整,从而可以形成大跨度的空间结构。Further, please refer to Figure 9 and Figure 10, as a specific implementation of the cable-assisted large-span structure provided by the present invention, the number of the main load-bearing structure 1 and the number of the secondary load-bearing structure 2 are both multiple, and the same The adjacent primary load-bearing structures 1 are fixedly connected, and the adjacent secondary load-bearing structures 2 are connected by cables 211. Specifically, the entire cable-assisted large-span structure can be applied to the project in the form of a main load-bearing structure 1 and a secondary load-bearing structure 2, or the number of the main load-bearing structure 1 and the secondary load-bearing structure 2 can be set to multiple, and the main load-bearing structure The structure 1 is a whole, the horizontal load-bearing member 12 can be welded or spliced, etc., the vertical load-bearing member 11 can be arranged separately or in combination, and the secondary load-bearing structures 2 can be connected by cables 211, which are located in the horizontal load-bearing member 12. The outer side of the edge cable 211 can be fixedly connected with the upper surface of the other horizontal load-bearing member 12. At this time, the fixed connection between the secondary load-bearing structures 2 can be realized, and the combination method can be adjusted according to actual needs and specific needs. , Which can form a large-span spatial structure.
请参阅图1至图10,本发明还提供一种索辅大跨结构的施工方法,用于搭建如上述任一条中的索辅大跨结构,所述索辅大跨结构的施工方法包括如下步骤:Referring to Figures 1 to 10, the present invention also provides a construction method for a cable-assisted large-span structure, which is used to build a cable-assisted large-span structure as in any one of the above. The construction method of the cable-assisted large-span structure includes the following step:
主承重结构1施工,将所述竖向受力件11底部进行固定至一固定件3上,并将所述水平受力件12吊装至所述竖向受力件11的顶部,并将所述水平受力件12和所述竖向受力件11固定连接;The main load-bearing structure 1 is constructed, the bottom of the vertical force receiving member 11 is fixed to a fixing member 3, and the horizontal force receiving member 12 is hoisted to the top of the vertical force receiving member 11, and the The horizontal force receiving member 12 and the vertical force receiving member 11 are fixedly connected;
桅杆212安装,在所述水平受力件12上预留用于固定所述桅杆212的预留接口,将所述桅杆212吊装至所述预留接口上,并将所述桅杆212和所述预留接口固定连接;The mast 212 is installed, a reserved interface for fixing the mast 212 is reserved on the horizontal force member 12, the mast 212 is hoisted to the reserved interface, and the mast 212 and the Reserved interface for fixed connection;
拉索211安装,将所述拉索211展开后,将所述拉索211的一端固定于所述固定件3上或所述水平受力件12上,并采用单点吊法将所述拉索211的一端穿过所述桅杆212的顶端,再将所述拉索211的另一端和所述水平受力件12固定连接,使得所述桅杆212的两侧受力对称;The cable 211 is installed. After the cable 211 is unfolded, one end of the cable 211 is fixed to the fixing member 3 or the horizontal force-receiving member 12, and the cable is lifted by a single-point hoisting method. One end of the cable 211 passes through the top end of the mast 212, and the other end of the cable 211 is fixedly connected to the horizontal force member 12, so that the force on both sides of the mast 212 is symmetrical;
拉索211张拉施工,依次对所述拉索211进行张拉,同时对位于所述水平受力件12两端的所述拉索211进行张拉力的调整。The cable 211 is stretched, and the cable 211 is stretched in sequence, and at the same time, the tension of the cable 211 located at the two ends of the horizontal force receiving member 12 is adjusted.
本发明提供的索辅大跨结构的施工方法,将次承重结构2设置在主承重结构1上,竖向受力件11对水平受力件12进行支撑,索辅组件21设置在水平受力件12的上方,进一步的利用拉索211对水平受力件12进行拉升,从而保证水平受力件12的稳定性,拉索211的一端固定于固定件3上,另一端固定于水平受力件12上,且中间由桅杆212进行支撑和中转,能够实现结构体系和建筑效果融合一体,使得索结构和其他结构可以进行创新组合,发挥各自优势,结构受力合理,赋予建筑轻盈的形态,并且可以根据建筑形态和结构承重情况设置一级索辅结构或多级索辅结构。In the construction method of the cable-assisted large-span structure provided by the present invention, the secondary load-bearing structure 2 is arranged on the main load-bearing structure 1, the vertical load-bearing member 11 supports the horizontal load-bearing member 12, and the cable-assisted assembly 21 is set in the horizontal load-bearing structure. Above the member 12, a cable 211 is further used to pull up the horizontal force receiving member 12, thereby ensuring the stability of the horizontal force receiving member 12. One end of the cable 211 is fixed to the fixing member 3, and the other end is fixed to the horizontal receiving member 3. The force member 12 is supported and transferred by the mast 212 in the middle, which can realize the integration of the structural system and the architectural effect, so that the cable structure and other structures can be combined in an innovative manner, giving full play to their respective advantages, and the structure is reasonably stressed, giving the building a light form , And can set up a first-level cable-assisted structure or a multi-level cable-assisted structure according to the building form and structural load-bearing situation.
其中,竖向受力件11即为钢柱,水平受力件12即为钢梁,首先加工钢柱并在固件上索锚固墩,并将钢柱采用起重机械吊装到锚固墩上,从而实现钢柱的固定连接。桅杆212安装时,采用合适的起重机械进行吊装,吊装时通过手拉葫芦控制桅杆212倾斜角度,使桅杆212底部的接口与水平受力件12上表面预留的接口相契合。初步定位后,临时固定再调整校正, 完毕后进行接口节点焊接。在焊接过程中起重机械吊绳禁止松钩,待焊接完毕并且码板焊接就位后尚可松钩。Among them, the vertical force member 11 is a steel column, and the horizontal force member 12 is a steel beam. First, the steel column is processed and the pier is anchored with a cable, and the steel column is hoisted to the anchor pier by a hoisting machine. Realize the fixed connection of the steel column. When the mast 212 is installed, suitable hoisting equipment is used for hoisting. During hoisting, the inclination angle of the mast 212 is controlled by a chain hoist, so that the interface at the bottom of the mast 212 fits with the interface reserved on the upper surface of the horizontal force member 12. After initial positioning, temporarily fix it and then adjust and calibrate it, and perform interface node welding after completion. It is forbidden to loosen the hook of the crane rope during the welding process, and the hook can be loosened after the welding is completed and the code plate is welded in place.
在拉索211安装前需要进行展索操作,即使拉索211在安装时处于无应力自然状态,保证安装工程安全顺利进行。可采用卧式放索盘进行放索。对索盘设置制动装置,必要时可使用钢丝绳作为尾索,采用小型三轮车缓慢稳定放索,从而避免在放索过程中,由于索盘自身的弹性和牵引时产生的偏心力,会使索盘转动产生加速,危及工作人员安全。其中,将拉索211提前展开的目的即是安装需要,又可以舒展索体散去扭力。Before the cable 211 is installed, the cable extension operation is required, even if the cable 211 is in a stress-free natural state during installation, the safe and smooth progress of the installation project is ensured. The horizontal cable reel can be used for cable release. Set up a braking device for the cable reel. If necessary, a wire rope can be used as the tail cable. A small tricycle is used to slowly and stably unwind the cable, so as to avoid the elasticity of the cable reel and the eccentric force generated during traction. The rotation of the disc causes acceleration, which endangers the safety of the staff. Among them, the purpose of unfolding the cable 211 in advance is the installation requirement, and the cable body can be stretched to dissipate the torsion force.
拉索211的桅杆212安装采用“单点吊法”安装,即拉索211在地面展开后,在斜拉索211桅杆212端锚头0.5m左右安装索夹设置吊点,然后起吊装置采用适当起重机械,利用高空车给安装工人提供操作平台,配合手拉葫芦将索夹前端的自由端调整成与设计中的拉索211的角度一致,使拉索211的端部叉耳能进入桅杆212上的耳板,并插入销轴锁死,然后对桅杆212的另一侧的拉索211进行安装,从而保证桅杆212对称受力。The mast 212 of the stay cable 211 is installed using the "single-point hoisting method", that is, after the cable 211 is deployed on the ground, a cable clamp is installed at about 0.5m from the anchor head of the stay cable 211 mast 212 to set a lifting point, and then the lifting device adopts an appropriate lifting device. For hoisting machinery, use high-altitude vehicles to provide installation workers with an operating platform, and cooperate with the chain hoist to adjust the free end of the front end of the cable clamp to the angle of the design cable 211, so that the end of the cable 211 can enter the mast. The lug plate on the 212 is inserted into the pin to lock it, and then the cable 211 on the other side of the mast 212 is installed to ensure that the mast 212 is symmetrically stressed.
在桅杆212的顶端安装完成后,在钢梁上的梁端的锚固耳板附近设置拉力固定点,并布置卷扬机和手拉葫芦等动力措施,从而设置角度调整支架及牵引绳等。在安装时将拉索211的调节螺母放松,使拉索211的长度变的稍微长一点,便于拉索211的下端在梁上的安装。用吊带把卷扬机、手拉葫芦与拉索211下端的锚具连接起来,再用小型吊车或支架,把拉索211的锚具抬起来,进行拉索211在钢梁上的安装和固定。After the installation of the top of the mast 212 is completed, a tension fixing point is set near the anchor lug plate at the beam end on the steel beam, and power measures such as a winch and a chain hoist are arranged, so as to set an angle adjustment bracket and a traction rope. During installation, the adjusting nut of the cable 211 is loosened to make the length of the cable 211 slightly longer, which facilitates the installation of the lower end of the cable 211 on the beam. Connect the hoist and the chain hoist with the anchor at the lower end of the cable 211 with a sling, and then use a small crane or bracket to lift the anchor of the cable 211 to install and fix the cable 211 on the steel beam.
其中,拉索211张拉施工时,为准确进行拉索211的张拉和调整,在张拉时采用“液压千斤顶-油泵”系统,通过“油压-力值”的关系控制张 拉力。拉索211的张拉顺序按照从位于钢梁两侧的拉索211逐渐向钢梁内侧的拉索211进行张拉,并且每次张拉两根对称的拉索211,两侧的张拉应同步对称进行,从而保证对称性。张拉完二级索辅后应拆除钢梁支架后再进行后续的张拉施工。控制索力张拉误差在±5%以内,待结构屋面施工完毕后对达不到设计索力的拉索211再次进行调整;钢梁脱架及拉索211张拉完成后应对钢梁变形进行观测。Among them, during the tensioning construction of the cable 211, in order to accurately perform the tensioning and adjustment of the cable 211, the “hydraulic jack-oil pump” system is adopted during the tensioning, and the tension is controlled through the relationship of “oil pressure-force value”. The tensioning sequence of the cable 211 is gradually extended from the cable 211 on both sides of the steel beam to the cable 211 on the inner side of the steel beam, and each time two symmetrical cables 211 are stretched, the tension on both sides should be Synchronization is performed symmetrically to ensure symmetry. After the secondary cable has been tensioned, the steel beam support should be removed before subsequent tensioning construction. The tension error of the control cable force is within ±5%. After the structural roof construction is completed, the cable 211 that fails to reach the design cable force shall be adjusted again; the steel beam shall be deformed after the steel beam is unframed and the cable 211 is tensioned. Observation.
进一步地,作为本发明提供的索辅大跨结构的施工方法的一种具体实施方式,所述水平受力件12在工厂内分段制造,在所述竖向受力件11的一侧设置临时支承件,依次将若干所述水平受力件12吊装至所述竖向受力件11和所述临时支承件上,并将若干所述水平受力件12之间固定连接,最后将所述临时支承件拆除。具体的,水平受力件12即为钢梁,钢梁在工厂内即预先分段制造,可以方便运输和吊装操作。在现场安装时,首先搭设临时支承设置在钢梁的底部,然后再采用起重机械吊装钢梁到位,并将多个钢梁分别焊接成型,待次承重结构2施工完成后,先拆除位于钢梁中间段的临时支承,再向钢梁的两端对称卸临时支承。Further, as a specific implementation of the construction method of the cable-assisted large-span structure provided by the present invention, the horizontal force receiving member 12 is manufactured in sections in a factory, and is provided on one side of the vertical force receiving member 11. Temporary support: hoist several horizontal force-receiving parts 12 to said vertical force-receiving part 11 and said temporary support in turn, and fix and connect several horizontal force-receiving parts 12 to each other. The temporary support is removed. Specifically, the horizontal force-bearing member 12 is a steel beam, and the steel beam is pre-manufactured in sections in the factory, which can facilitate transportation and hoisting operations. When installing on site, first set up temporary supports at the bottom of the steel beams, then use hoisting machinery to hoist the steel beams in place, and weld multiple steel beams separately. After the construction of the secondary load-bearing structure 2 is completed, first remove the steel beams. The temporary support of the middle section of the beam is then symmetrically unloaded to the two ends of the steel beam.
显然,上述实施例仅仅是为清楚地说明所作的举例,而并非对实施方式的限定。对于所属领域的普通技术人员来说,在上述说明的基础上还可以做出其它不同形式的变化或变动。这里无需也无法对所有的实施方式予以穷举。而由此所引伸出的显而易见的变化或变动仍处于本发明创造的保护范围之中。Obviously, the foregoing embodiments are merely examples for clear description, and are not intended to limit the implementation manner. For those of ordinary skill in the art, other changes or modifications in different forms can be made on the basis of the above description. It is unnecessary and impossible to list all the implementation methods here. The obvious changes or changes derived from this are still within the protection scope created by the present invention.

Claims (12)

  1. 索辅大跨结构,其特征在于:包括The Suofu large-span structure is characterized by:
    主承重结构(1),所述主承重结构(1)包括竖向受力件(11)和固定于所述竖向受力件(11)顶端的水平受力件(12),所述水平受力件(12)架设于至少两个所述竖向受力件(11)上;以及The main load-bearing structure (1), the main load-bearing structure (1) includes a vertical force-receiving member (11) and a horizontal force-receiving member (12) fixed to the top end of the vertical force-receiving member (11). The force-receiving member (12) is erected on at least two of the vertical force-receiving members (11); and
    次承重结构(2),所述次承重结构(2)包括至少一个索辅组件(21),每一级所述索辅组件(21)均包括拉索(211)和竖直设于所述水平受力件(12)上的桅杆(212),所述拉索(211)的一端固定于固定件(3)或所述水平受力件(12)上,另一端经所述桅杆(212)的顶端固定于所述水平受力件(12)上。A secondary load-bearing structure (2), the secondary load-bearing structure (2) includes at least one cable-assisted component (21), and the cable-assisted component (21) at each level includes a cable (211) and is vertically arranged on the The mast (212) on the horizontal force-bearing member (12), one end of the cable (211) is fixed to the fixing member (3) or the horizontal force-bearing member (12), and the other end passes through the mast (212) The top end of) is fixed on the horizontal force-receiving member (12).
  2. 如权利要求1所述的索辅大跨结构,其特征在于:所述索辅组件(21)包括一级索辅,所述一级索辅的所述桅杆(212)分别位于水平受力件(12)的四个角,所述拉索(211)的一端固定于固定件(3)上,另一端经所述桅杆(212)的顶端固定于所述水平受力件(12)上。The cable-assisted long-span structure according to claim 1, characterized in that: the cable-assisted assembly (21) includes a primary cable-assisted, and the masts (212) of the primary cable-assisted are respectively located on the horizontal force-bearing member In the four corners of (12), one end of the cable (211) is fixed to the fixing member (3), and the other end is fixed to the horizontal force-receiving member (12) via the top end of the mast (212).
  3. 如权利要求2所述的索辅大跨结构,其特征在于:所述索辅组件(21)还包括二级索辅,所述二级索辅的所述桅杆(212)设于所述一级索辅的所述拉索(211)和所述水平受力件(12)的连接处;The cable-assisted long-span structure according to claim 2, characterized in that: the cable-assisted component (21) further comprises a secondary cable-assisted, and the mast (212) of the secondary cable-assisted is provided in the first The connection point of the cable (211) and the horizontal force-receiving member (12) of the grade cable assistant;
    所述二级索辅的所述拉索(211)的一端固定于所述一级索辅的所述桅杆(212)的底部,另一端穿过所述二级索辅的所述桅杆(212)的顶部固定于所述水平受力件(12)上。One end of the guy cable (211) of the secondary cable assistant is fixed to the bottom of the mast (212) of the primary cable assistant, and the other end passes through the mast (212) of the secondary cable assistant. The top of) is fixed on the horizontal force-receiving member (12).
  4. 如权利要求3所述的索辅大跨结构,其特征在于:所述索辅组件(21)还包括多级索辅,所述多级索辅的所述桅杆(212)设于上一级索辅的所述拉索(211)和所述水平受力件(12)的连接处;The cable-assisted long-span structure according to claim 3, characterized in that: the cable-assisted assembly (21) further comprises a multi-stage cable-assisted, and the mast (212) of the multi-stage cable-assisted is arranged at the upper level The connection point of the cable (211) and the horizontal force-receiving member (12) of the cable assistant;
    所述多级索辅的所述拉索(211)的一端固定于上一级索辅的所述桅杆(212)的底部,另一端穿过所述多级索辅的所述桅杆(212)的顶部固定于所述水平受力件(12)上。One end of the stay cable (211) of the multi-stage cable assistant is fixed to the bottom of the mast (212) of the upper cable assistant, and the other end passes through the mast (212) of the multi-stage cable assistant The top part is fixed on the horizontal force-receiving member (12).
  5. 如权利要求4所述的索辅大跨结构,其特征在于:在所述二级索辅中,在所述二级索辅和所述多级索辅中,所述拉索(211)均以所述桅杆(212)对称设置。The cable-assisted long-span structure according to claim 4, characterized in that: in the secondary cable-assisted, in the secondary cable-assisted and the multi-stage cable-assisted, the cable (211) is both The mast (212) is symmetrically arranged.
  6. 如权利要求4所述的索辅大跨结构,其特征在于:所述一级索辅的所述桅杆(212)的高度大于所述二级索辅的所述桅杆(212)的高度;所述二级索辅的所述桅杆(212)的高度大于所述多级索辅的所述桅杆(212)的高度。The cable-assisted long-span structure according to claim 4, characterized in that: the height of the mast (212) of the primary cable-assisted is greater than the height of the mast (212) of the secondary cable-assisted; The height of the mast (212) of the secondary cable assistant is greater than the height of the mast (212) of the multi-stage cable assistant.
  7. 如权利要求1至6任一项所述的索辅大跨结构,其特征在于:靠近所述竖直受力件的所述桅杆(212)之间的间距大于远离所述竖直受力件的所述桅杆(212)之间的间距。The cable-assisted long-span structure according to any one of claims 1 to 6, characterized in that the distance between the masts (212) close to the vertical force member is greater than that far away from the vertical force member The spacing between the masts (212).
  8. 如权利要求1至6任一项所述的索辅大跨结构,其特征在于:所述桅杆(212)分别设于所述水平受力件(12)长度方向上的相对两侧面,且所述次承重结构(2)在所述水平受力件(12)的长度和宽度方向上均为对称设置。The cable-assisted large-span structure according to any one of claims 1 to 6, wherein the masts (212) are respectively arranged on two opposite sides in the length direction of the horizontal force-receiving member (12), and The secondary load-bearing structure (2) is symmetrically arranged in the length and width directions of the horizontal force-receiving member (12).
  9. 如权利要求1至6任一项所述的索辅大跨结构,其特征在于:所述竖向受力件(11)采用支撑柱,所述支撑柱竖直设置或倾斜设置;所述水平受力件(12)采用连接梁,所述连接梁的纵截面形状为直线型或弧线形。The cable-assisted large-span structure according to any one of claims 1 to 6, characterized in that: the vertical force-receiving member (11) adopts a supporting column, and the supporting column is arranged vertically or inclined; the horizontal The force-receiving member (12) adopts a connecting beam, and the longitudinal cross-sectional shape of the connecting beam is a straight line or an arc shape.
  10. 如权利要求1至6任一项所述的索辅大跨结构,其特征在于:所述主承重结构(1)和所述次承重结构(2)的数量均为多个,且相邻的所述主承重结构(1)之间固定连接,相邻的所述次承重结构(2)之间通过拉索(211) 相连接。The cable-assisted large-span structure according to any one of claims 1 to 6, characterized in that: the number of the main load-bearing structure (1) and the number of the secondary load-bearing structure (2) are multiple, and adjacent The main load-bearing structures (1) are fixedly connected, and the adjacent secondary load-bearing structures (2) are connected by cables (211).
  11. 索辅大跨结构的施工方法,用于搭建如权利要求1至10任一项所述索辅大跨结构,其特征在于:所述施工方法包括如下步骤:A construction method for a cable-assisted large-span structure for building the cable-assisted large-span structure according to any one of claims 1 to 10, characterized in that: the construction method includes the following steps:
    主承重结构(1)施工,将所述竖向受力件(11)底部进行固定至一固定件(3)上,并将所述水平受力件(12)吊装至所述竖向受力件(11)的顶部,并将所述水平受力件(12)和所述竖向受力件(11)固定连接;The main load-bearing structure (1) is constructed, the bottom of the vertical force-bearing member (11) is fixed to a fixing member (3), and the horizontal force-bearing member (12) is hoisted to the vertical force The top of the piece (11), and fixedly connect the horizontal force-receiving piece (12) and the vertical force-receiving piece (11);
    桅杆(212)安装,在所述水平受力件(12)上预留用于固定所述桅杆(212)的预留接口,将所述桅杆(212)吊装至所述预留接口上,并将所述桅杆(212)和所述预留接口固定连接;The mast (212) is installed, a reserved interface for fixing the mast (212) is reserved on the horizontal force-bearing member (12), the mast (212) is hoisted to the reserved interface, and Fixedly connect the mast (212) and the reserved interface;
    拉索(211)安装,将所述拉索(211)展开后,将所述拉索(211)的一端固定于所述固定件(3)上或所述水平受力件(12)上,并采用单点吊法将所述拉索(211)的一端穿过所述桅杆(212)的顶端,再将所述拉索(211)的另一端和所述水平受力件(12)固定连接,使得所述桅杆(212)的两侧受力对称;The cable (211) is installed. After the cable (211) is unfolded, one end of the cable (211) is fixed to the fixing member (3) or the horizontal force-receiving member (12), A single-point hoisting method is used to pass one end of the stay cable (211) through the top end of the mast (212), and then fix the other end of the stay cable (211) to the horizontal force-bearing member (12) Connection so that the forces on both sides of the mast (212) are symmetrical;
    拉索(211)张拉施工,依次对所述拉索(211)进行张拉,同时对位于所述水平受力件(12)两端的所述拉索(211)进行张拉力的调整。The tensioning construction of the cable (211) is to sequentially stretch the cable (211), and simultaneously adjust the tension of the cable (211) located at the two ends of the horizontal force-receiving member (12).
  12. 如权利要求11所述的索辅大跨结构的施工方法,其特征在于:所述水平受力件(12)在工厂内分段制造,在所述竖向受力件(11)的一侧设置临时支承件,依次将若干所述水平受力件(12)吊装至所述竖向受力件(11)和所述临时支承件上,并将若干所述水平受力件(12)之间固定连接,最后将所述临时支承件拆除。The construction method of the cable-assisted long-span structure according to claim 11, characterized in that: the horizontal force-receiving member (12) is manufactured in sections in a factory, and is located on one side of the vertical force-receiving member (11). Set up temporary supports, hoist a number of the horizontal load-bearing members (12) to the vertical load-bearing member (11) and the temporary support in turn, and place a number of the horizontal load-bearing members (12) Fixed connection between the two, and finally the temporary support is removed.
PCT/CN2020/112183 2019-09-19 2020-08-28 Cable-supported large-span structure and construction method therefor WO2021052142A1 (en)

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CN114362655A (en) * 2022-03-04 2022-04-15 山东大学 Large-span single-span self-anchoring flexible photovoltaic support system and construction method
CN114517532A (en) * 2022-04-20 2022-05-20 华北科技学院 Spatial structure of one-way tensioned metal sheet and construction method
CN114673354A (en) * 2022-04-19 2022-06-28 中建八局总承包建设有限公司 Construction method of complex curved surface concrete thin shell structure adopting cable mesh fabric template
CN116145817A (en) * 2023-04-17 2023-05-23 北京市建筑工程研究院有限责任公司 Cable net structure with multiple flexible cable edges and forming method thereof
CN116378422A (en) * 2023-05-18 2023-07-04 江苏沪武建设集团有限公司 Large-span tensioning steel structure and construction method

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CN113982270A (en) * 2021-10-23 2022-01-28 山西一建集团有限公司 Block hoisting construction method for large-span spherical-crown-shaped bolt spherical node net rack
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CN114517532A (en) * 2022-04-20 2022-05-20 华北科技学院 Spatial structure of one-way tensioned metal sheet and construction method
CN116145817A (en) * 2023-04-17 2023-05-23 北京市建筑工程研究院有限责任公司 Cable net structure with multiple flexible cable edges and forming method thereof
CN116145817B (en) * 2023-04-17 2023-08-15 北京市建筑工程研究院有限责任公司 Cable net structure with multiple flexible cable edges and forming method thereof
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CN116378422B (en) * 2023-05-18 2024-02-02 江苏沪武建设集团有限公司 Large-span tensioning steel structure and construction method

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