CN219261344U - Multi-layer stepped large space structure with triangular cantilever truss - Google Patents
Multi-layer stepped large space structure with triangular cantilever truss Download PDFInfo
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Abstract
The multi-layer ladder-type large space structure with the triangular cantilever trusses is positioned at the low position of the structure, consists of a vertical member and a ladder-type beam plate structure, and provides support for a ladder-type floor slab by arranging a frame oblique beam, an oblique beam and a full lap-joint type transverse beam which rise along the height direction; the hanging sandwich structure is positioned below the stepped large space structure, and is tied and tied by the plane beam to form a sandwich through the diagonal draw bars and the hanging columns which are hung on the upper structural beam; the ladder type cantilever structure is positioned at a high position of the structure and consists of a plurality of triangular cantilever trusses and a horizontal beam plate system which are arranged in parallel, wherein an upper chord member of the truss is in a zigzag shape according to the function requirement, and a support is provided by a full-lap-joint transverse horizontal Liang Liangwei ladder type floor slab, and a sandwich space is formed by a lower chord member of the truss and the planar beam plate system so as to meet the requirement of an auxiliary function space of the high position space. The utility model can meet the main building requirements of ornamental plants, and effectively meet the auxiliary functional requirements of ventilation, equipment houses and the like.
Description
Technical Field
The utility model belongs to the technical field of structural engineering, and particularly relates to a multilayer stepped large-space structure with triangular cantilever trusses. The multilayer large-space structure with the triangular cantilever trusses refers to multilayer column-free open spaces with the upper layer cantilever of not less than 10 meters and the span of not less than 40 meters so as to meet the functional requirements of ornamental buildings.
Background
The cantilever truss structure system is a lattice beam structure consisting of a tensile upper chord member, a compressive lower suspension member, a diagonal web member and a vertical web member, has the advantages of light dead weight, high rigidity and the like when being used as the vertical support of a large-span, large cantilever and other structure systems, is widely applied to structures needing large span and large cantilever to realize building functions, and is particularly common in large complex public buildings.
The stepped large-space structure is characterized in that a main stress system is formed by a vertical member, such as a shear wall, a column and the like, which falls on the ground, and a frame oblique beam, oblique beams with different spans and a transverse frame beam which are spatially raised along the height direction, and the stepped large-space structure is formed by lap joint connection on the oblique beams.
For a multilayer ladder-type large-space structure with large span and large overhanging requirements, the whole system stress mode combining the overhanging truss structure and the ladder-type large-space structure is a reasonable and effective solution. The low-level large space part is realized by a ladder-type large space structure; the high-level large-span large overhanging space is realized through an overhanging truss structure. The form of the truss is determined according to the trend of the steps and the modeling of the building.
The overhanging ladder of the high-level region is a typical building functional space taking overhanging as a main and a large span as an auxiliary; it is generally considered to arrange a plurality of trusses on the fixed side of the structure along the width direction of the building function space as a vertical supporting system. Because the cantilever range is large, the vertical bearing capacity is high, and high requirements are put forward on the rigidity bearing performance of the vertical supporting cantilever truss, the triangular cantilever truss form with the web members is a reasonable and effective solution.
The multilayer ladder-type large space structure needs to be provided with auxiliary functional interlayers except for functional floors. The space between the upper chord and the lower chord of the truss is utilized to form an interlayer for the high-position overhanging region, and meanwhile, the truss web members can be optimally arranged according to the functional requirements of the attached rooms; and introducing a hanging structure into the low-position overhanging region to form an interlayer space. Therefore, the truss and the hanging structure are adopted at the high position and the low position respectively, so that the structure arrangement scheme is reasonable and effective.
The arc boundary modeling and staggered step-shaped floor arrangement can be realized by inclined beams with different slopes and transverse beams with different elevations. The cantilever truss fixed side floor frame column and the beam lifting column are stressed greatly, and when the cantilever truss is structurally arranged, a span balance bending moment extends to the fixed side through the upper chord member and the lower chord member, and when a member is selected, the floor frame column adopts a steel tube concrete column or a steel reinforced concrete column to fully exert the compression resistance of concrete.
In addition, the multilayer ladder-type large-space structure has the problems of complex node connection structure, complex structural stress performance, large-span and large overhanging area earthquake resistance, comfort degree treatment and the like, and reasonable and effective triangular truss design is an important factor for guaranteeing structural bearing performance and normal use by using a large-space frame design and a construction scheme.
In summary, it is necessary to research a method for constructing a multi-layer stepped large-space structure with triangular cantilever trusses, so as to be suitable for a complex structural system with high-level large cantilever and multi-layer large-span space structure characteristics and meeting the functional requirements of stepped wide viewing space.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model provides a multilayer ladder-type large-space structure with a triangular cantilever truss, and the multilayer through-height column-free and ladder-type open space is realized by cantilever at the high position of the structure so as to meet the requirements of ornamental main buildings; meanwhile, the lower chord of the triangular cantilever truss and the auxiliary hanging structure are utilized to form an interlayer so as to meet the auxiliary functional requirements of ventilation, equipment rooms and the like.
The technical scheme adopted for solving the technical problems is as follows:
the multi-layer ladder-type large space structure with the triangular cantilever trusses comprises a ladder-type large space structure, a hanging sandwich structure and a ladder-type cantilever structure, wherein the ladder-type large space structure is positioned at a low position of the structure and consists of a vertical member and a ladder-type beam plate structure, and a frame oblique beam, an oblique beam and a full lap-joint type transverse beam which ascend along the height direction are arranged to provide support for a ladder-type floor slab so as to realize functional requirements; the hanging sandwich structure is positioned below the stepped large-space structure, and is tied and tied by the plane beam to form a sandwich through the diagonal draw bars and the hanging columns hung on the upper structural beam; the ladder type cantilever structure is located at a high position of the structure and is composed of a plurality of triangular cantilever trusses and a horizontal beam plate system which are arranged in parallel, an upper chord member of the truss is in a fold line shape according to the function requirement, and a support is provided through a full-lap transverse horizontal Liang Liangwei ladder type floor, and a lower chord member of the truss and the plane beam plate system form an interlayer space to meet the requirement of an accessory function space of the high position space.
Further, the step-type large space structure comprises a vertical supporting system formed by a floor shear wall and a frame column, an inclined beam rising along the height direction, and a cross beam and a floor slab which are connected with the inclined beam. The ladder-shaped space is mainly realized by connecting cross beams with inclined beams at different elevations in a full lap joint mode, and load acting on the ladder-shaped floor slab is transferred to a vertical supporting system through a beam system.
The stepped large-space structure is symmetrically provided with the floor shear walls on two sides of the structure to bear vertical load, and meanwhile, the member also provides lateral rigidity for the large-space structure, reduces torsion effect of the structure and ensures the lateral resistance of the structure under the action of earthquake.
The stepped large-space structure can realize the combination of the horizontal beam and the inclined beam at a low position through the herringbone nodes so as to meet the conversion of the stepped floor space and the local horizontal floor space.
The step-type large-space structure can adopt a concrete structure, a section steel concrete structure or a steel structure according to the construction function below the structure and the falling condition of vertical members and the dimension requirement of the whole large-span space; the diagonal beams rising along the height can also adopt truss beams and lattice beam systems of open-web truss beams to meet the requirement of large span.
The hanging sandwich structure is positioned below the stepped large-space structure and can be arranged as a hanging inclined plate or a hanging flat plate according to the requirements of the sandwich and the building functions below the sandwich; when a hanging flat plate is adopted, double rows of hanging columns are arranged according to the span.
According to the building function requirement and the hanging interlayer height requirement, the hanging interlayer can adopt other modes such as hanging plates to replace hanging columns; meanwhile, when the floor of the interlayer column does not influence the building function, the floor interlayer column should be preferentially adopted, and the beneficial effect of the rigidity of the interlayer on structural earthquake resistance is fully considered.
The hanging interlayer should meet the construction height, the construction space should be fully considered, and as the optimization, the minimum net height of the interlayer should not be less than 800mm; meanwhile, the sandwich structure should be constructed after the frame beam strength bearing the load of the suspension column is formed, or provide sufficient temporary support during construction, and be removed after the upper transverse beam strength is formed.
The stepped cantilever structure is formed by a plurality of triangular cantilever trusses which are arranged in parallel and are tied through transverse horizontal beams with different elevations; forming a stepped space on the upper chord of the cantilever truss through the fully-lapped transverse direction; and an accessory room is formed by utilizing the upper chord space and the lower chord space of the triangular truss.
The step-type overhanging structure adopts a concrete structure, a steel reinforced concrete structure or a steel structure according to the dimension of the whole large-span space of the structure and the overhanging dimension. Meanwhile, when the load bearing capacity requirement of the structure is met during calculation, the deflection of the overhanging component is fully considered, and when a steel structure is adopted, the pre-arching work is also performed.
The step-type cantilever structure is provided with web members according to structural stress and building function requirements. When the functional requirements are met, the inclined web members are arranged preferentially so as to enhance the bearing capacity of the truss; preferably, the included angle between the inclined web member and the lower chord horizontal rod is 45-60 degrees.
The geometric dimension of the triangular cantilever truss in the stepped cantilever structure can be adjusted according to the building function requirement; as an expansion, the triangular cantilever truss can be developed into an inverted triangle, a rectangular truss and the like with longer upper chord.
The upper chord member and the lower chord member of the triangular cantilever truss in the stepped cantilever structure extend to the non-cantilever end for one span so as to strengthen the anchoring of the truss chord members and balance the bending moment of the truss at the fixed end to a certain extent.
The parallel triangular cantilever trusses in the ladder-type cantilever structure can adjust the shape and the slope according to building functions and modeling requirements, and floor slabs in different elevation areas are formed through a transverse horizontal beam system connected with the chord members.
The high-level ladder-type cantilever structure and the low-level ladder-type large space structure are connected with the side span and the floor shear wall, and the hidden beams are arranged in the floor shear wall according to the ladder trend of the building design so as to effectively transfer vertical force, enhance the structural space integrity and improve the earthquake resistance of the structure.
The floor slab in the stepped area of the high-level stepped overhanging structure and the low-level stepped large-space structure can adopt finished integrated seats to replace traditional cast-in-situ floor slabs or precast slabs in construction sites, and the seats comprise floor slab bases, ornamental seats and corresponding auxiliary ventilation pipelines. The product can effectively improve the industrialization degree and provides convenience for seat renovation and replacement in the later operation process of the project.
The basic idea of the utility model is based on a triangular conversion truss, a floor frame column and a shear wall, and realizes an open column-free space with rich auxiliary functions through a stepped full-lap beam-slab structure system:
the structural system has definite constituent modules and clear force transmission, accords with the design principle of integral stress and bearing mode, and fully exerts the larger rigidity and bearing performance of the integral structural system. The high-level area is based on a plurality of triangular cantilever trusses and a plurality of layers of landing shear walls which are arranged in parallel, and a structural scheme meeting the functional requirement is formed by a planar beam plate structure of an auxiliary functional layer and a stepped full-overlap beam plate structure of a main functional layer; the low-level area is based on a landing frame column and a landing shear wall, a stepped full-lap beam slab structure system and a hanging auxiliary structure form a structural scheme meeting functional requirements.
The beneficial effects of the utility model are mainly shown in the following steps: the multi-layer ladder-type large space structure with the triangular cantilever truss provided by the utility model has a reasonable structure system structure, can realize multi-layer through-height column-free and ladder-type open ornamental space requirements and various accessory function space requirements by cantilever at a high structure position, fully plays the advantages of the triangular cantilever truss in large cantilever ladder-type building modeling, and realizes the unification of functions and modeling. The structure system takes a landing shear wall, a frame column and a triangular cantilever truss as a main vertical supporting system of the structure, is connected with a transverse horizontal beam system through an inclined beam to form an integral space structure, and forms a ladder through a fully-lapped transverse beam; meanwhile, the floor shear wall is used as a main side force resisting component, so that a guarantee is provided for large-span space earthquake resistance. Through ultimate bearing capacity calculation and normal use bearing capacity calculation, the structure of the utility model is convenient to control through indexes such as integral rigidity (deformation value control), bearing capacity (reinforcement ratio/stress ratio control) and the like, and reasonable and effective integral structure system is further ensured. The structural system has the advantages of clear component modules, clear force transmission, large overhanging, large span, high bearing capacity and strong modeling adaptability, and has wide application prospect in the multi-layer column-free large-space building function and modeling complex structural system in the high-position large overhanging region.
Drawings
Fig. 1a-1d are a schematic structural view, a schematic structural view of a stepped large space structure, a schematic structural view of a hanging sandwich structure, and a schematic structural view of a stepped cantilever structure, respectively, of a multi-layer stepped large space structure embodiment with a triangular cantilever truss according to the present utility model.
FIGS. 2a-2b are top plan views of the multi-layered stepped large space structure of the triangular cantilever truss of the present utility model, i.e., schematic cut-away views of FIGS. 1b and 1c, A-A;
FIG. 3 is a cross-sectional elevation view of an embodiment of the multi-layered stepped large space structure with triangular cantilever trusses of the present utility model, i.e., a schematic view of section B-B of FIG. 1;
FIG. 4 is a left side view in cross-section of an embodiment of the large space cantilever truss structure of the present utility model, shown schematically in cross-section C-C in FIG. 1;
fig. 5a-5b are partial cross-sectional detail views of the triangular cantilever truss structure and hanging sandwich structure of the present utility model, the detail views using reinforced concrete as a main example material, and providing a schematic diagram of the bending key node of the folded beam.
FIG. 6 is a diagram showing the composition of the specific components of the present utility model.
In the drawings, the components represented by the respective reference numerals are as follows:
1. a single-layer floor shear wall; 2. multilayer floor shear wall; 2a, a hidden beam in the low-level wall; 2b, a hidden beam in the sandwich wall; 2c, a hidden beam in the high-position lower chord wall; 2d, a hidden beam in the high-position upper chord wall; 3. a local platform frame column with a stepped large space structure; 4. landing frame columns with stepped large space structures; 5. longitudinal frame oblique beam with stepped large space structure; 6. longitudinal long-span oblique beams of ladder-type large-space structures; 7. longitudinal short-span oblique beams with stepped large space structures; 8. edge-span longitudinal edge-sealing inclined beam of stepped large-space structure; 8a, a horizontal beam of a local platform with a stepped large space structure; 9. a stepped large space structure low area transverse frame beam; 10. a middle-area transverse frame beam in a stepped large-space structure; 11. a stepped large space structure high area transverse beam; 12. a stepped large space structure high area transverse side span frame beam; 13. a stepped large space structure low area transverse beam; 14. a middle-area transverse beam in a stepped large-space structure; 15. a stepped large space structure high area transverse beam; 16. a stepped large space structure high area transverse support beam; 17. a hanging sandwich structure inclined main pull rod; 18. hanging the inclined secondary pull rod of the sandwich structure; 19. hanging a transverse frame beam of the sandwich structure; 20. hanging a vertical suspender of the sandwich structure; 21. landing frame columns of the ladder-type overhanging structure; 22. lifting a column on a lower beam of the stepped cantilever structure; 23. an upper chord of the stepped cantilever structure; 24. a lower chord of the ladder-type cantilever structure; 25. the upper chord and lower chord of the ladder-type cantilever structure are crossed with the transverse horizontal beam; 26. a stepped section transverse horizontal beam of a stepped cantilever structure; 27. a stepped cantilever structure upper chord transverse horizontal beam; 28. a lower chord transverse horizontal beam of the ladder-type cantilever structure; 29. and a step-shaped cantilever structure.
Description of the embodiments
The utility model is further described below with reference to the accompanying drawings.
Referring to fig. 1-6, a multi-layer stepped large space structure with triangular cantilever trusses comprises a stepped large space structure, a hanging sandwich structure and a stepped cantilever structure. The step-type large space structure is positioned at a low position (figure 1 b), a vertical supporting structure is formed by a floor frame column and a shear wall, and a main body stress frame of a space is formed by the vertical supporting structure, an inclined frame beam rising along the height direction and transverse frame beams with different elevations; according to the building span and the structural form, long span and short span oblique beams parallel to the oblique frame beams are additionally arranged as required; the transverse beams with different elevations are overlapped with the oblique beams to form a ladder-shaped structure which is used as a low-level main functional floor; the hanging structure is positioned below the stepped large space (figure 1 c), a plurality of hanging columns and the inclined-pull beams form a vertical stress unit of a hanging interlayer, and the transverse support beams hung in the stepped large space are connected with the frame beams through the transverse frame beams to form a whole to be used as a floor with a low-level auxiliary function; the ladder-shaped cantilever structure (1 d) is positioned at a high level of the structure, a plurality of triangular cantilever trusses are arranged in parallel to form a vertical supporting structure, and ladder-shaped transverse horizontal beams with different elevations are overlapped with upper chords of the trusses to form a ladder-shaped floor which is used as a high-level main function floor; the lower chord transverse horizontal beam is connected with the truss lower chord to form a horizontal floor, and the horizontal floor is used as a high-order auxiliary functional floor.
The stepped large-space structure consists of a single-layer floor shear wall 1, a multi-layer floor shear wall 2, a local platform frame column 3, a floor frame column 4, a hidden beam 2a in a low-level wall, a longitudinal frame oblique beam 5, a longitudinal long-span oblique beam 6, a longitudinal short-span oblique beam 7, a longitudinal side-span edge sealing oblique beam 8, a local platform horizontal beam 8a, a low-area transverse frame beam 9, a middle-area transverse frame beam 10, a high-area transverse frame beam 11, a high-area transverse side-span frame beam 12, a low-area transverse beam 13, a middle-area transverse beam 14, a high-area transverse beam 15 and a high-area transverse support beam 16; the horizontal beam system and the through-layer inclined beam form a step shape according to the building function and the modeling requirement, and bear the load through the landing shear wall and the landing frame column.
The Y-direction frame formed by the frame columns 3-4 and the longitudinal oblique beams 5-8 in the stepped large-space structure, the X-direction frame formed by the frame columns 3-4 and the transverse beams 9-12, and the two-way frame and the landing shear walls 1-2 on two sides of the structure provide vertical bearing capacity and lateral rigidity for the whole structure to form a lateral force resisting system of the structure.
In the step-type large-space structure, a local horizontal floor slab is formed by a horizontal beam 8a, a horizontal beam 9, a single-layer floor shear wall 1, a frame column 3 and a floor slab, and is connected with a step-type sloping plate at a step starting point; the horizontal beam 9 and the longitudinal side span edge sealing oblique beam 8 are combined into the same beam at the starting position.
The hanging sandwich structure consists of a vertical component consisting of an inclined main pull rod 17, an inclined secondary pull rod 18 and a vertical suspender 20, and a transverse high-area transverse side frame beam 12, a high-area transverse support beam 16 and a frame beam 19, wherein the high-area transverse side frame beam 12 and the high-area transverse support beam 16 are used as components of the hanging sandwich structure and the stepped large-space structure; the sandwich plate and the bottom floor slab form an angle of 45-90 degrees according to the building function requirement, and a diagonal web member is added between the diagonal draw bar and the vertical suspender according to the height of the sandwich layer required by engineering so as to meet the stress requirement.
When the construction function conditions allow, the hanging sandwich structure adopts a floor frame column to replace the hanging column 20, the stress state of the original cable-stayed beams 17-18 is changed into a stretch bending member, and a sandwich vertical stress system is formed by the hanging sandwich structure and the frame column.
The step-type cantilever structure consists of a triangular cantilever truss and a step-type horizontal beam slab system; the triangular cantilever trusses consist of a floor frame column 21, a lower beam lifting column 22, an upper chord member 23, a lower chord member 24 and a diagonal web member 29, and are arranged along the space annular direction to form a vertical support system of a stepped cantilever structure together with the side span multilayer floor shear wall 2.
The floor frame column 21 and the beam lifting column 22 in the triangular cantilever truss adopt concrete, steel reinforced concrete or steel pipe concrete members according to the cantilever size, the upper function and the type of horizontal members.
The step-type horizontal beam plate system in the step-type cantilever structure consists of an upper chord horizontal beam 27, a lower chord horizontal beam 28, a step section horizontal beam 26, an upper chord and lower chord juncture horizontal beam 25 and a floor slab; the horizontal beams 25-28 are arranged orthogonal to the triangular cantilever trusses of the multiple trusses, are mutually connected to form a whole, and are arranged in a staggered manner along with the elevation change of the upper chord 23 to form a ladder.
As shown in fig. 1b, the main frame structure of the stepped large-space structure is formed by a floor shear wall 1-2, frame columns 3-4, frame diagonal beams 5, diagonal beams 6-8 and transverse frame beams 9-12; the transverse beams 13-16 are in lap joint with the oblique beams to form a stepped floor. The floor shear walls 1-2 are symmetrically positioned at two sides of the structure and provide lateral rigidity for the structure; a hidden beam 2a is arranged in the multilayer floor shear wall 2 to provide support for the step-shaped floor side span. Meanwhile, the horizontal beam 8a, the floor shear wall 1, the frame column 3 and the transverse frame beam 9 form a local horizontal floor, the step-type large-space longitudinal side span edge sealing inclined beam 8 and the local platform horizontal beam 8a are intersected through a herringbone node, and the connection and conversion of the inclined plate and the horizontal plate are realized.
As shown in fig. 1c, the hanging sandwich structure is hung on a stepped large-space structure high-area transverse side span frame beam 12 and a stepped large-space structure high-area transverse support beam 16 respectively by a plurality of groups of hanging columns 20 and inclined pull rods 17-18 according to spans, and the hanging rods are connected with the inclined pull beams by the transverse frame beam 19 to form a sandwich plate vertical support system; the hidden beams 2b are arranged in the multi-layer floor shear wall 2 to provide support for hanging the side span of the interlayer.
As shown in fig. 1d, the stepped cantilever structure is composed of an upper chord member 23, a lower chord member 24, a diagonal web member 29, a floor frame column 21, a lower beam lifting column 22, and a plurality of triangular cantilever trusses arranged in parallel are formed as vertical supports of the upper cantilever structure. The triangular cantilever trusses are connected in an upper chord mode through the stepped section transverse horizontal beams 26, the upper chord and lower chord juncture transverse horizontal beams 25 and the upper chord transverse horizontal beams 27 with different elevations to form a stepped floor; the upper and lower chord juncture transverse horizontal beams 25 and the lower chord transverse horizontal beams 28 connect the lower chords of the triangular cantilever trusses to form a sandwich plate floor support system of the cantilever structure; the upper and lower chord juncture transverse horizontal beam 25 is positioned at the overhanging end part of the triangular overhanging truss and is also used as a supporting beam of the upper and lower chord floorslab; hidden beams 2c and 2d are arranged at positions corresponding to the upper chord and the lower chord in the multilayer floor shear wall 2 to respectively provide support for the upper chord and the lower chord of the triangular cantilever truss.
As shown in fig. 6, the specific component composition relationship of the multilayer ladder-type large-space structure of the triangular cantilever truss of the utility model is as follows:
(1) The single-layer floor shear wall 1, the multi-layer floor shear wall 2, the stepped large-space structure local platform frame column 3 and the stepped large-space structure floor frame column 4 form a vertical supporting member and a lateral force resisting member of the stepped large-space structure together;
(2) The hidden beam 2a, the longitudinal frame oblique beam 5, the longitudinal long span oblique beam 6, the longitudinal short span oblique beam 7 and the longitudinal edge span edge sealing oblique beam 8 of the stepped large space structure in the low-level wall form an oblique beam system which ascends in the height direction in the stepped large space;
(3) The step-type large space structure low-area transverse frame beam 9, the step-type large space structure middle-area transverse frame beam 10, the step-type large space structure high-area transverse frame beam 11, the step-type large space structure high-area transverse side span frame beam 12 and the step-type large space structure high-area transverse support beam 16 form a step-type large space inner transverse frame beam system together;
(4) The low-area transverse beam 13, the middle-area transverse beam 14 and the high-area transverse beam 15 of the stepped large-space structure are connected with the oblique beam system in a full lap joint mode to form a stepped beam system in the stepped large space;
(5) The hanging sandwich structure vertical suspender 20 is hung on the stepped large space structure high-area transverse support beam 16; the hanging sandwich structure inclined main pull rod 17 and the hanging sandwich structure inclined secondary pull rod 18 are hung on the transverse side span frame beam 12 of the high area of the stepped large-space structure to form a vertical stress system of the hanging structure; the vertical components are connected with each other through a hanging sandwich structure transverse frame beam 19 to form a whole;
(6) The upper lifting column 22 of the lower beam of the stepped cantilever structure is supported by the high-area transverse side span frame beam 12 of the stepped large-space structure, and is used as a vertical supporting member of the stepped cantilever structure together with the floor frame column 21 of the stepped cantilever structure;
(7) The floor frame column 21 of the ladder type cantilever structure, the upper lifting column 22 of the lower beam of the ladder type cantilever structure, the upper chord member 23 of the ladder type cantilever structure, the lower chord member 24 of the ladder type cantilever structure and the inclined web member 29 of the ladder type cantilever structure form a vertical supporting triangular cantilever truss basic unit together;
(8) The triangular cantilever truss basic units are mutually connected to form a stepped cantilever structure by the upper and lower chord juncture transverse horizontal beams 25, the stepped cantilever structure stepped section transverse horizontal beam 26, the stepped cantilever structure upper chord transverse horizontal beam 27 and the stepped cantilever structure lower chord transverse horizontal beam 28 of the stepped cantilever structure.
The utility model also provides application of the multilayer stepped large-space structure with the triangular cantilever truss in design and bearing of a high-level large-space building function and a complex structural system, wherein the multilayer large-space structure with the cantilever truss refers to a multilayer column-free open space with the cantilever upper layer of not less than 10 meters and the span of not less than 40 meters so as to meet the functional requirements of ornamental buildings.
The multilayer ladder-type large-space structure with the triangular cantilever trusses is based on the floor shear wall, the frame column and the vertical supporting triangular cantilever trusses, achieves a large-space building function through a large-span floor and the cantilever large-span floor, achieves a main building function requirement through a ladder-type floor formed by an oblique beam system ascending along the height direction and a lap joint transverse beam, and achieves a building auxiliary function through an interlayer formed by the hanging structure and the upper chord space and the lower chord space of the truss structure. The structural system has the advantages of definite component modules, clear force transmission, large overhanging, large span, high bearing capacity, strong modeling adaptability and the like.
The embodiments described in this specification are merely illustrative of the manner in which the inventive concepts may be implemented. The scope of the present utility model should not be construed as being limited to the specific forms set forth in the embodiments, but the scope of the present utility model and the equivalents thereof as would occur to one skilled in the art based on the inventive concept.
Claims (9)
1. The multi-layer ladder-type large space structure with the triangular cantilever trusses is characterized by comprising a ladder-type large space structure, a hanging sandwich structure and a ladder-type cantilever structure, wherein the ladder-type large space structure is positioned at a low position of the structure and consists of a vertical member and a ladder-type beam plate structure which are arranged on the ground, and a frame oblique beam, an oblique beam and a full lap-joint transverse beam which rise along the height direction are arranged to provide support for a ladder-type floor slab so as to realize functional requirements; the hanging sandwich structure is positioned below the stepped large-space structure, and is tied and tied by the plane beam to form a sandwich through the diagonal draw bars and the hanging columns hung on the upper structural beam; the ladder type cantilever structure is located at a high position of the structure and is composed of a plurality of triangular cantilever trusses and a horizontal beam plate system which are arranged in parallel, an upper chord member of the truss is in a fold line shape according to the function requirement, and a support is provided through a full-lap transverse horizontal Liang Liangwei ladder type floor, and a lower chord member of the truss and the plane beam plate system form an interlayer space to meet the requirement of an accessory function space of the high position space.
2. The multi-layer stepped large space structure with triangular cantilever trusses according to claim 1, wherein the stepped large space structure consists of single-layer floor shear walls, multi-layer floor shear walls, local platform frame columns, floor frame columns, low-level wall inner hidden beams, longitudinal frame diagonal beams, longitudinal long-span diagonal beams, longitudinal short-span diagonal beams, longitudinal side-span edge banding diagonal beams, local platform horizontal beams, low-area transverse frame beams, middle-area transverse frame beams, high-area transverse side-span frame beams, low-area transverse beams, middle-area transverse beams, high-area transverse beams and high-area transverse support beams; the horizontal beam system and the through-layer inclined beam form a step shape according to the building function and the modeling requirement, and bear the load through the landing shear wall and the landing frame column.
3. The multi-layer stepped large space structure with triangular cantilever trusses according to claim 1 or 2, wherein the frame columns-and the longitudinal oblique beams-in the stepped large space structure form a Y-direction frame, the frame columns-and the transverse beams-form an X-direction frame, and the two-way frames and the landing shear walls on two sides of the structure provide vertical bearing capacity and lateral rigidity for the integral structure to form a lateral force resisting system of the structure.
4. The multi-layer stepped large space structure with the triangular cantilever trusses, as claimed in claim 1 or 2, characterized in that in the stepped large space structure, a local horizontal floor slab composed of a horizontal beam, a single-layer landing shear wall, a frame column and a floor slab is connected with a stepped sloping plate at a stepped starting point; the horizontal beam and the longitudinal side span edge sealing oblique beam are combined into the same beam at the starting position.
5. The multi-layer stepped large space structure with the triangular cantilever trusses according to claim 1 or 2, wherein the hanging sandwich structure consists of a vertical component consisting of an inclined main pull rod, an inclined secondary pull rod and a vertical suspender, a transverse high-area transverse side frame beam, a high-area transverse support beam and a frame beam, wherein the high-area transverse side frame beam and the high-area transverse support beam are used as components of the hanging sandwich structure and the stepped large space structure; the sandwich plate and the bottom floor slab form an angle of 45-90 degrees according to the building function requirement, and a diagonal web member is added between the diagonal draw bar and the vertical suspender according to the height of the sandwich layer required by engineering so as to meet the stress requirement.
6. The multi-layer stepped large space structure with triangular cantilever trusses according to claim 5, wherein the hanging sandwich structure adopts a floor frame column to replace the hanging column when the building function condition allows, and the original inclined-pull beam-stress state is changed into a stretch bending member, so that a sandwich vertical stress system is formed with the frame column.
7. The multi-layer stepped large space structure with triangular cantilever trusses according to claim 1 or 2, wherein the stepped cantilever structure is composed of a triangular cantilever truss and a stepped horizontal beam slab system, wherein the triangular cantilever truss is composed of a landing frame column, a lower beam upper lifting column, an upper chord, a lower chord and a diagonal web member, and the multiple trusses are arranged along the space circumferential direction and form a vertical support system of the stepped cantilever structure together with a side span multi-layer landing shear wall.
8. The multi-layered stepped large space structure with triangular cantilever trusses according to claim 1 or 2, wherein the landing frame column and the beam lifting column in the triangular cantilever trusses are concrete, steel reinforced concrete or steel pipe concrete members according to the cantilever size, the upper function and the type of the horizontal members.
9. The multi-layer stepped large space structure with the triangular cantilever truss according to claim 1 or 2, wherein a stepped horizontal beam plate system in the stepped cantilever structure consists of an upper chord horizontal beam, a lower chord horizontal beam, a stepped section horizontal beam, an upper chord and lower chord juncture horizontal beam and a floor slab; the horizontal beams are arranged in a way of being orthogonal to the triangular cantilever trusses of the multiple trusses, the triangular cantilever trusses are mutually connected to form a whole, and meanwhile, the horizontal beams are arranged in a staggered manner along with the elevation change of the upper chord member to form a ladder.
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