CN112323977A - Assembled large-span cold-bending solid abdominal arch structure - Google Patents
Assembled large-span cold-bending solid abdominal arch structure Download PDFInfo
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- CN112323977A CN112323977A CN202011298166.8A CN202011298166A CN112323977A CN 112323977 A CN112323977 A CN 112323977A CN 202011298166 A CN202011298166 A CN 202011298166A CN 112323977 A CN112323977 A CN 112323977A
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- 238000005452 bending Methods 0.000 title claims abstract description 64
- 239000007787 solid Substances 0.000 title claims abstract description 63
- 230000003187 abdominal effect Effects 0.000 title claims abstract description 58
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 16
- 239000010959 steel Substances 0.000 claims abstract description 16
- 238000009434 installation Methods 0.000 claims abstract description 9
- 238000010276 construction Methods 0.000 abstract description 17
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract description 9
- 238000005536 corrosion prevention Methods 0.000 abstract description 5
- 238000003466 welding Methods 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract 1
- 101150097977 arch-1 gene Proteins 0.000 description 9
- 230000008878 coupling Effects 0.000 description 6
- 238000010168 coupling process Methods 0.000 description 6
- 238000005859 coupling reaction Methods 0.000 description 6
- 210000001015 abdomen Anatomy 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000012994 industrial processing Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/32—Arched structures; Vaulted structures; Folded structures
- E04B1/3205—Structures with a longitudinal horizontal axis, e.g. cylindrical or prismatic structures
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/342—Structures covering a large free area, whether open-sided or not, e.g. hangars, halls
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/32—Arched structures; Vaulted structures; Folded structures
- E04B2001/3235—Arched structures; Vaulted structures; Folded structures having a grid frame
- E04B2001/3241—Frame connection details
- E04B2001/3247—Nodes
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- Structural Engineering (AREA)
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Abstract
The invention discloses an assembled large-span cold-bending solid abdominal arch structure which comprises a rigid arch unit, a densely-distributed tie bar connecting unit and a non-densely-distributed tie bar connecting unit, wherein the rigid arch unit, the densely-distributed tie bar connecting unit and the non-densely-distributed tie bar connecting unit are all made of steel, the densely-distributed tie bar connecting unit and the non-densely-distributed tie bar connecting unit connect the rigid arch unit into an integral structure through specific connecting nodes, and the rigid arch unit is connected with the non-densely-distributed tie bar connecting unit through bolts during field installation. The invention is an assembly structure, no welding is needed in the construction site, the construction period is short, and the construction quality is easy to control; the structure is an arch structure, the force transmission is definite, the used components are fewer, the self weight of the structure is small, the spanning capability is high, steel is saved, and the space utilization rate is high; the dead angle of the component is less, the workload of secondary rust removal and corrosion prevention is less, the rust removal quality is easy to control, and the method has practical significance and good application prospect.
Description
Technical Field
The invention relates to the technical field of building frameworks, in particular to an assembled large-span cold-bending solid abdominal arch structure.
Background
The existing closed bin generally adopts a portal rigid frame structure and a grid structure, and the two structures have the characteristics of simple stress, clear force transmission path, convenience for industrial processing and the like, so that the closed bin is widely applied to industrial and civil buildings. But the portal rigid frame structure has limited spanning capacity and is not suitable for structures with larger spans; the spatial grid structure usually adopts welded hollow sphere node rack and bolt sphere node rack, wherein the on-site welding workload of welded hollow sphere node rack is large, the welding quality is not easy to control, the required human cost is large, the construction period is long, the bolt sphere single weight in the bolt sphere node rack is large, the precision requirement on each accessory is high, the on-site installation difficulty is large, and the spatial grid structure rods are large in quantity, the high-altitude working capacity is large, the risk coefficient is high, the construction quality is not easy to control, the dead angle of a component is large, the rust removal and corrosion prevention work is difficult, the cost is high, and the overall quality of the spatial grid.
Disclosure of Invention
The invention aims to solve the technical problems and provide an assembled large-span cold-bending solid abdominal arch structure which not only has the advantages of labor saving, construction period shortening and the like of the assembled structure, but also has the advantages of light self weight, large span, low difficulty in later rust removal and corrosion prevention work and the like of the arch structure.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides an assembled large-span cold bending solid abdomen arch structure, cold bending solid abdomen arch structure is full assembly type structure, and the field installation is bolted connection between each component, including a plurality of rigidity arch units, densely covered tie rod coupling unit and densely covered tie rod coupling unit, each rigidity arch unit is connected as whole through densely covered tie rod coupling unit or densely covered tie rod coupling unit, two rigidity arch units of cold bending solid abdomen arch structure tip are connected through densely covered tie rod coupling unit promptly, all the other rigidity that are located cold bending solid abdomen arch structure middle part are encircleed the unit and are all connected through densely covered tie rod coupling unit between the unit.
Preferably, each member of the cold-bending solid abdominal arch structure is made of steel.
Preferably, the rigid arch unit comprises two cold-bending solid abdominal arches, an inclined strut, a vault tie rod, a column foot tie rod and a middle rigid tie rod, the middle rigid tie rod and the inclined strut are uniformly distributed on the two cold-bending solid abdominal arches, the vault tie rod is arranged in the middle, and column foot tie rods are arranged at two ends of the vault tie rod; the dense tie bar connecting unit and the non-dense tie bar connecting unit respectively comprise a vault tie bar, column base tie bars and a middle flexible tie bar, the middle flexible tie bars are uniformly distributed on the dense tie bar connecting unit and the non-dense tie bar connecting unit, the vault tie bars are arranged in the middle, the column base tie bars are arranged at two ends, the two ends of each vault tie bar, each column base tie bar and each middle flexible tie bar are respectively connected with cold-bending solid abdomens of the rigid arch units at two sides, and the arrangement of the middle flexible tie bars of the dense tie bar connecting unit is denser than that of the non-dense tie bar connecting unit.
More preferably, the cold-bending solid abdominal arch is formed by splicing a plurality of sections of cold-bent H-shaped steel, the arch crown tie bar and the column foot tie bar are both in a long box shape with a box-shaped cross section, the inclined strut, the middle rigid tie bar and the middle flexible tie bar are all in a long tube shape with a round tube-shaped cross section, the end part of the middle flexible tie bar is flattened and punched, and the end part of the middle rigid tie bar is not flattened.
More preferably, the cold-bending solid abdominal arch is formed by strongly splicing multiple sections of cold-bending H-shaped steel and the like, the vault tie bar is connected with the cold-bending solid abdominal arch through vault splicing nodes, the middle rigid tie bar, the middle flexible tie bar and the diagonal brace are connected with the cold-bending solid abdominal arch through middle tie bar connecting nodes, and the column foot tie bar and the diagonal brace are connected with the cold-bending solid abdominal arch through column foot tie bar connecting nodes.
More preferably, the vault splicing node comprises a first connecting plate, a second connecting plate, a third connecting plate, a first stiffening rib, a second stiffening rib and a third stiffening rib, two sections of H-shaped steel of the cold-bending solid abdominal arch are respectively welded with the first connecting plate and the second connecting plate, one end of the vault tie bar is welded with the third stiffening rib, the lower part of the vault tie bar is welded with the second stiffening rib, the vault tie bar, the third stiffening rib and the second stiffening rib are all welded on the third connecting plate, when the vault tie bar, the third stiffening rib and the second stiffening rib are installed on site, the first connecting plate and the third connecting plate are all fixed on the second connecting plate through bolts, and then the welded three parts are assembled.
More preferably, the bracing includes bracing connecting plate, ear knot and adjustable bolt sleeve, the bracing connecting plate is established to two, and bracing connecting plate one end is equipped with the ear knot, and two bracing connecting plate other ends pass through adjustable bolt sleeve and connect, and after the tip ear knot was connected with the bracing connecting plate and is accomplished, the adjustable bolt sleeve of positive and negative knot in rotatory middle part, the adjustable bolt sleeve both sides bolt-up is fixed it to suitable position back with the adjustment bracing.
More preferably, the middle tie bar connection node comprises a fourth connection plate, a fifth connection plate, a sixth connection plate, a seventh connection plate, a fourth stiffening rib and a fifth stiffening rib, the fourth connection plate is welded on a web plate of the cold-bending solid abdominal arch, a port of the middle rigid tie bar is welded with the sixth connection plate, the fourth stiffening rib and the seventh connection plate are sequentially welded below the port of the middle rigid tie bar, the fifth connection plate and the fifth stiffening rib are both welded on a side wall of the middle rigid tie bar and the sixth connection plate, during field installation, a flattened end of the middle flexible tie bar is connected with the fourth connection plate through a bolt, the sixth connection plate and the seventh connection plate are respectively connected with the web plate and a lower flange of the cold-bending solid abdominal arch through bolts, an ear of the diagonal brace is connected with the fifth connection plate through a bolt, and the middle rigid tie bar, the cold-bending solid abdominal arch and the diagonal brace are assembled.
More preferably, the column base tie rod connection node comprises an eighth connection plate, a ninth connection plate, a tenth connection plate and a sixth stiffening rib, one end of the column base tie rod is welded with the sixth stiffening rib and the tenth connection plate, the eighth connection plate and the ninth connection plate are welded with a web plate of the cold-bending solid abdominal arch, when the column base tie rod connection node is installed on site, the eighth connection plate and the tenth connection plate are connected through bolts, ear buckles of the inclined struts are connected with the ninth connection plate through bolts, and then the column base tie rod, the inclined struts and the cold-bending solid abdominal arch are assembled.
The invention has the beneficial effects that:
1. the structure of the invention is an assembly type structure, the components are prefabricated and welded in a factory, and are connected by bolts when being installed on a construction site, so that the influence of weather is small during construction, the construction period is short, the manpower requirement is small, and the construction quality is easy to control;
2. the structure of the invention is an arch structure, the force transmission is definite, the used components are few, the structure self weight is small, the spanning capability is large, the steel is saved, and the space utilization rate is high;
3. the structural system of the invention has the advantages of less components, less dead angles of the components, less workload of secondary rust removal and corrosion prevention and easy control of rust removal quality.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic plan view of the present invention.
Fig. 3 is a schematic view of the rigid arch unit structure of the present invention.
Fig. 4 is a schematic diagram of a vault-splicing node structure of the present invention.
Fig. 5 is a schematic diagram of the explosion structure of the vault splicing node of the present invention.
FIG. 6 is a schematic view of the middle tie bar connection node configuration of the present invention.
FIG. 7 is a schematic cross-sectional view of an end portion of a central flexible tie rod.
Figure 8 is a schematic view of a mid-section rigid tie bar connection.
Fig. 9 is a schematic diagram of the right-side structure of fig. 8.
Figure 10 is a schematic view of a column base tie bar connection node structure of the present invention.
Fig. 11 is a schematic view of the connection structure of the toe link.
Fig. 12 is a schematic structural view of the sprag.
The labels in the figure are: i, a rigid arch unit, II, a densely distributed tie bar connecting unit, III, a non-densely distributed tie bar connecting unit, 1, a cold-bending solid abdominal arch, 2, a vault tie bar, 3, a vault splicing node, 4, a first connecting plate, 5, a second connecting plate, 6, a middle rigid tie bar, 7, a middle flexible tie bar, 8, a middle tie bar connecting node, 9, a fourth connecting plate, 10, an eighth connecting plate, 11, a fifth connecting plate, 12, a ninth connecting plate and 13, third connecting plate, 14, sixth connecting plate, 15, seventh connecting plate, 16, tenth connecting plate, 17, column base tie bar, 18, diagonal brace, 1801, diagonal brace connecting plate, 1802, ear clip, 1803, adjustable bolt sleeve, 19, column base tie bar connecting node, a1, first stiffening rib, a2, second stiffening, A3, third stiffening rib, a4, fourth stiffening rib, a5, fifth stiffening rib, a6, sixth stiffening rib.
Detailed Description
The following detailed description of specific configurations and embodiments of the present invention will be made with reference to the accompanying drawings.
As shown in fig. 1-2, an assembled large-span cold-bending solid-web arch structure of the present embodiment is a fully assembled structure, and field installation among components is bolt connection, and includes a plurality of rigid arch units i, densely-distributed tie bar connection units ii and densely-distributed tie bar connection units iii, each rigid arch unit i is connected as a whole through the densely-distributed tie bar connection units ii or the densely-distributed tie bar connection units iii, that is, two rigid arch units i at the end portions of the cold-bending solid-web arch structure are connected through the densely-distributed tie bar connection units ii, and the other rigid arch units i located in the middle portion of the cold-bending solid-web arch structure are connected through the densely-distributed tie bar connection units iii. In this embodiment, each member of the cold-bending solid abdominal arch structure is made of steel.
As shown in fig. 1 to 3, the rigid arch unit i of the present embodiment includes two cold-bent solid abdominal arches 1, diagonal braces 18, arch crown tie bars 2, column foot tie bars 17, and intermediate rigid tie bars 6. A middle rigid tie bar 6 and an inclined strut 18 are uniformly distributed between two cold-bending solid abdominal arches 1, a vault tie bar 2 is arranged in the middle, and column foot tie bars 17 are arranged at two ends. The densely-distributed tie bar connecting unit II and the densely-distributed tie bar connecting unit III respectively comprise a vault tie bar 2, column base tie bars 17 and a middle flexible tie bar 7, the densely-distributed tie bar connecting unit II and the densely-distributed tie bar connecting unit III are respectively and uniformly provided with the middle flexible tie bars 7, the middle part is provided with the vault tie bars 2, two end heads are respectively provided with the column base tie bars 17, two ends of the vault tie bars 2, the column base tie bars 17 and the middle flexible tie bars 7 are respectively connected with the cold-bending solid abdominal arches 1 of the rigid arch units I at two sides, and the middle flexible tie bars 7 of the densely-distributed tie bar connecting unit II are arranged more densely than the densely-distributed tie bar connecting unit. The cold-bending solid abdominal arch 1 is formed by splicing a plurality of sections of H-shaped steel formed by cold bending, the vault tie bars 2 and the column foot tie bars 17 are both arranged into a long box shape with a box-shaped cross section, the inclined struts 18, the middle rigid tie bars 6 and the middle flexible tie bars 7 are all arranged into a long tube shape with a round tube-shaped cross section, as shown in figure 7, the end parts of the middle flexible tie bars 7 are rolled flat and punched, the end parts of the middle rigid tie bars 6 are not rolled flat, the structural arrangement enables the cross section form of the component to be simple, the types are few, the dead angle of the whole structure is small, the workload of secondary rust removal and corrosion.
As shown in fig. 1, the cold-bending solid abdominal arch 1 is formed by strongly splicing multiple sections of cold-bending H-shaped steel and the like, the vault-tie bar 2 is connected with the cold-bending solid abdominal arch 1 through the vault-splicing node 3, the middle rigid tie bar 6, the middle flexible tie bar 7, the inclined strut 18 are connected with the cold-bending solid abdominal arch 1 through the middle tie-bar connecting node 8, and the column foot tie bar 17 and the inclined strut 18 are connected with the cold-bending solid abdominal arch 1 through the column foot tie-bar connecting node 19. The connection node is all in bolt connection, is little influenced by weather during construction, and construction cycle is short, and the manpower demand is little, and construction quality is easy to control.
As shown in fig. 4-5, the vault splicing node 3 includes a first connecting plate 4, a second connecting plate 5, a third connecting plate 13, a first stiffening rib a1, a second stiffening rib a2 and a third stiffening rib A3, two sections of H-shaped steel of the cold-bending solid abdominal arch 1 are respectively welded with the first connecting plate 4 and the second connecting plate 5, one end of the vault tie bar 2 is welded with the third stiffening rib A3, the lower part of the vault tie bar is welded with the second stiffening rib a2, the vault tie bar 2, the third stiffening rib A3 and the second stiffening rib a2 are all welded on the third connecting plate 13, and the first connecting plate 4 and the third connecting plate 13 are all fixed on the second connecting plate 5 by bolts.
As shown in fig. 12, the inclined strut 18 includes two inclined strut connecting plates 1801, two ear buckles 1802 and two adjustable bolt sleeves 1803, the ear buckles 1802 are provided at one end of the inclined strut connecting plates 1801, the other ends of the two inclined strut connecting plates 1801 are connected by the adjustable bolt sleeves 1803, after the end ear buckles 1802 are connected with the inclined strut connecting plates 1801, the middle adjustable bolt sleeves 1803 are rotated, and the inclined strut is adjusted to fix the inclined strut to a proper position, and then bolts at two sides of the bolt sleeves are screwed. The mounting mode enables the structure to have certain adjustability during mounting, and adverse effects on the whole structure caused by mounting errors are reduced.
As shown in fig. 6, the middle tie bar connecting node 8 comprises a fourth connecting plate 9, a fifth connecting plate 11, a sixth connecting plate 14, a seventh connecting plate 15, a fourth stiffening rib a4 and a fifth stiffening rib a5, the fourth connecting plate 9 is welded on the web of the cold-bending solid abdominal arch 1, the rolled flat end of the middle flexible tie bar 7 is connected with the fourth connecting plate 9 through bolts during field installation, as shown in fig. 8-9, the port of the middle rigid tie bar 6 is not rolled flat and is welded with the sixth connecting plate 14, the fourth stiffening rib a4 and the seventh connecting plate 15 are welded below the port of the middle flexible tie bar 7 in sequence, and the fifth connecting plate 11 and the fifth stiffening rib a5 are welded on the side wall of the middle rigid tie bar 6 and the sixth connecting plate 14. When the cold-bending solid abdominal arch is installed on site, the sixth connecting plate 14 and the seventh connecting plate 15 are respectively connected with a web plate and a lower flange of the cold-bending solid abdominal arch 1 through bolts, and the ear buckles 1802 of the inclined struts 18 are connected with the fifth connecting plate 11 through bolts.
As shown in fig. 10, the column base tie bar connection node 19 includes an eighth connection plate 10, a ninth connection plate 12, a tenth connection plate 16, and a sixth stiffening rib a6, one end of the column base tie bar 17 is welded to the sixth stiffening rib a6 and the tenth connection plate 16, the eighth connection plate 10 and the ninth connection plate 12 are welded to the web of the cold-bent solid abdominal arch 1, the eighth connection plate 10 and the tenth connection plate 16 are connected by bolts, and the ear pieces of the diagonal braces 18 are connected to the ninth connection plate 12 by bolts 1802 in the field installation.
In specific implementation and application, a rigid arch unit I, a densely-distributed tie bar connecting unit II and a non-densely-distributed tie bar connecting unit III are arranged according to needs, then all welded components are prefabricated and welded in a factory, and only bolts are needed for connection during installation on a construction site, so that all components are slightly influenced by weather during construction, the construction period is short, the manpower requirement is small, the construction quality is easy to control, and the structure is an arch structure, the force transfer is clear, the used components are few, the structure self weight is small, the spanning capacity is high, steel is saved, and the space utilization rate is high; the number of the used components is small, the dead angle of the components is small, the workload of secondary rust removal and corrosion prevention is small, and the rust removal quality is easy to control.
The above description is only a preferred embodiment of the present invention, and it will be apparent to those skilled in the art that various modifications and variations can be made without departing from the technical principle of the present invention, and these should be construed as the scope of the present invention.
The parts used in the invention can be purchased from the market, the special-shaped parts can be customized according to the description of the specification and the accompanying drawings, the specific connection mode of each part is not described, the conventional means such as bolts, rivets, welding and the like mature in the prior art are adopted, the machines and equipment are of the conventional type in the prior art, the circuit connection of the equipment is of the conventional connection mode in the prior art, the detailed description is omitted, and the content which is not described in detail in the specification belongs to the prior art known by persons skilled in the art.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (9)
1. The utility model provides an assembled large-span clod wash solid abdominal arch structure which characterized in that: the cold-bending solid-web arch structure is a full-assembly structure, all components are connected through bolts in the field installation, the cold-bending solid-web arch structure comprises a plurality of rigid arch units (I), densely distributed tie bar connecting units (II) and non-densely distributed tie bar connecting units (III), all the rigid arch units (I) are connected into a whole through the densely distributed tie bar connecting units (II) or the non-densely distributed tie bar connecting units (III), namely two rigid arch units (I) at the end parts of the cold-bending solid-web arch structure are connected through the densely distributed tie bar connecting units (II), and the rest rigid arch units (I) positioned in the middle of the cold-bending solid-web arch structure are connected through the non-densely distributed tie bar connecting units (III).
2. The assembled large-span cold-formed solid abdominal arch structure of claim 1, wherein: and all the components of the cold-bending solid abdominal arch structure are made of steel.
3. The assembled large-span cold-formed solid abdominal arch structure of claim 1, wherein: the rigid arch unit (I) comprises two cold-bending solid abdominal arches (1), inclined struts (18), arch crown tie rods (2), column foot tie rods (17) and middle rigid tie rods (6), wherein the middle rigid tie rods (6) and the inclined struts (18) are uniformly distributed on the two cold-bending solid abdominal arches (1), the arch crown tie rods (2) are arranged in the middle of the two cold-bending solid abdominal arches, and the column foot tie rods (17) are arranged at two ends of the two cold-bending solid abdominal arches; the densely-distributed tie bar connecting units (II) and the densely-distributed tie bar connecting units (III) respectively comprise arch crown tie bars (2), column foot tie bars (17) and middle flexible tie bars (7), the middle flexible tie bars (7) are uniformly distributed on the densely-distributed tie bar connecting units (II) and the densely-distributed tie bar connecting units (III), the arch crown tie bars (2) are arranged in the middle, the column foot tie bars (17) are arranged at two ends of each of the densely-distributed tie bar connecting units (II) and the densely-distributed tie bar connecting units (III), two ends of each of the arch crown tie bars (2), the column foot tie bars (17) and the middle flexible tie bars (7) are connected with cold-bending solid abdominal arches (1) of the rigid arch units (I) at two sides, and the middle flexible tie bars (7) of the densely-distributed tie bar.
4. The assembled large-span cold-formed solid abdominal arch structure of claim 3, wherein: the cold-bending solid abdominal arch (1) is formed by splicing a plurality of sections of H-shaped steel formed by cold bending, the arch crown tie rod (2) and the column foot tie rod (17) are all in a long box shape with a box-shaped cross section, the inclined strut (18), the middle rigid tie rod (6) and the middle flexible tie rod (7) are all in a long tube shape with a round tube-shaped cross section, the end part of the middle flexible tie rod (7) is rolled and punched, and the end part of the middle rigid tie rod (6) is not rolled and flattened.
5. The assembled large-span cold-formed solid abdominal arch structure of claim 4, wherein: the cold-bending solid abdominal arch (1) is formed by equal-strength splicing of multiple sections of cold-bending H-shaped steel, the vault tie bar (2) is connected with the cold-bending solid abdominal arch (1) through vault splicing nodes (3), the middle rigid tie bar (6), the middle flexible tie bar (7) and the diagonal brace (18) are connected with the cold-bending solid abdominal arch (1) through middle tie bar connecting nodes (8), and the column foot tie bar (17) and the diagonal brace (18) are connected with the cold-bending solid abdominal arch (1) through column foot tie bar connecting nodes (19).
6. The assembled large-span cold-formed solid abdominal arch structure of claim 5, wherein: the vault splicing node (3) comprises a first connecting plate (4), a second connecting plate (5), a third connecting plate (13), a first stiffening rib (A1), a second stiffening rib (A2) and a third stiffening rib (A3), two sections of H-shaped steel of the cold-bending solid abdominal arch (1) are respectively welded with the first connecting plate (4) and the second connecting plate (5), one end of the vault tie rod (2) is welded with the third stiffening rib (A3), the lower portion of the vault tie rod is welded with the second stiffening rib (A2), the vault tie rod (2), the third stiffening rib (A3) and the second stiffening rib (A2) are all welded on the third connecting plate (13), and the first connecting plate (4) and the third connecting plate (13) are all fixed on the second connecting plate (5) through bolts.
7. The assembled large-span cold-bent solid abdominal arch structure according to claim 5 or 6, wherein: bracing (18) are including bracing connecting plate (1801), ear knot (1802) and adjustable bolt sleeve (1803), bracing connecting plate (1801) are established to two, and bracing connecting plate (1801) one end is equipped with ear knot (1802), and two bracing connecting plate (1801) other ends are passed through adjustable bolt sleeve (1803) and are connected.
8. The assembled large-span cold-formed solid abdominal arch structure of claim 7, wherein: the middle tie bar connecting node (8) comprises a fourth connecting plate (9), a fifth connecting plate (11), a sixth connecting plate (14), a seventh connecting plate (15), a fourth stiffening rib (A4) and a fifth stiffening rib (A5), the fourth connecting plate (9) is welded on a web plate of the cold-bending solid abdominal arch (1), the rolled flat end of the middle flexible tie bar (7) is connected with the fourth connecting plate (9) through a bolt, the port of the middle rigid tie bar (6) is welded with the sixth connecting plate (14), the fourth stiffening rib (A4) and the seventh connecting plate (15) are sequentially welded below the middle rigid tie bar (6), the fifth connecting plate (11) and the fifth stiffening rib (A5) are both welded on the side wall of the middle rigid tie bar (6) and the sixth connecting plate (14), and the sixth connecting plate (14) and the seventh connecting plate (15) are respectively connected with the web plate of the cold-bending solid abdominal arch (1) through bolts, The lower flanges are connected, and the ear buckles (1802) of the inclined struts (18) are connected with the fifth connecting plate (11) through bolts.
9. The assembled large-span cold-formed solid abdominal arch structure of claim 7, wherein: the column base tie rod connecting node (19) comprises an eighth connecting plate (10), a ninth connecting plate (12), a tenth connecting plate (16) and a sixth stiffening rib (A6), one end of the column base tie rod (17) is welded with the sixth stiffening rib (A6) and the tenth connecting plate (16), the eighth connecting plate (10) and the ninth connecting plate (12) are welded with a web of the cold-bending solid abdominal arch (1), the eighth connecting plate (10) is connected with the tenth connecting plate (16) through bolts, and lugs (1802) of the inclined struts (18) are connected with the ninth connecting plate (12) through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011298166.8A CN112323977A (en) | 2020-11-18 | 2020-11-18 | Assembled large-span cold-bending solid abdominal arch structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011298166.8A CN112323977A (en) | 2020-11-18 | 2020-11-18 | Assembled large-span cold-bending solid abdominal arch structure |
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| CN112323977A true CN112323977A (en) | 2021-02-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113833118A (en) * | 2021-10-11 | 2021-12-24 | 煤炭工业太原设计研究院集团有限公司 | Upright quadrangular pyramid net rack and profile steel stand column combined structure |
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