CN114960973A - Steel pipe concrete special-shaped column and U-shaped steel-concrete combined beam node - Google Patents
Steel pipe concrete special-shaped column and U-shaped steel-concrete combined beam node Download PDFInfo
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- CN114960973A CN114960973A CN202210737161.3A CN202210737161A CN114960973A CN 114960973 A CN114960973 A CN 114960973A CN 202210737161 A CN202210737161 A CN 202210737161A CN 114960973 A CN114960973 A CN 114960973A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 353
- 239000010959 steel Substances 0.000 title claims abstract description 353
- 239000004567 concrete Substances 0.000 title claims abstract description 156
- 239000002131 composite material Substances 0.000 claims description 12
- 206010066054 Dysmorphism Diseases 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 10
- 238000009434 installation Methods 0.000 abstract description 4
- 238000003466 welding Methods 0.000 description 9
- 230000002787 reinforcement Effects 0.000 description 8
- 238000005452 bending Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000005192 partition Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 239000011150 reinforced concrete Substances 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000004574 high-performance concrete Substances 0.000 description 1
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- 238000006467 substitution reaction 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
- E04B1/38—Connections for building structures in general
- E04B1/58—Connections for building structures in general of bar-shaped building elements
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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
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/30—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts being composed of two or more materials; Composite steel and concrete constructions
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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
- E04B1/38—Connections for building structures in general
- E04B1/58—Connections for building structures in general of bar-shaped building elements
- E04B1/5825—Connections for building structures in general of bar-shaped building elements with a closed cross-section
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Abstract
The invention discloses a steel pipe concrete special-shaped column and U-shaped steel-concrete combined beam node which comprises an L-shaped corner node, a T-shaped edge node and a cross-shaped middle node. Each node comprises a steel pipe concrete special-shaped column, a U-shaped steel-concrete combined beam and a vertical rib plate. And a plurality of U-shaped steel-concrete combined beams are welded on the column limbs corresponding to the steel pipe concrete special-shaped column, and the U-shaped steel-concrete combined beams and the column limbs are stabilized at the joint by adopting the vertical rib plates. The beam-column joint meets the building assembly development requirement, the steel member assembly on the construction site basically takes bolt connection as the main part, and the beam-column joint has the characteristics of high installation efficiency and easy guarantee of construction quality.
Description
Technical Field
The invention relates to the technical field of building structures, in particular to a node of a concrete-filled steel tube special-shaped column and a U-shaped steel-concrete combined beam.
Background
The steel tube concrete special-shaped column structure conforms to the requirements of modern living environment on building structures in terms of building use functions, and has good mechanical and construction properties. At present, the H-shaped steel beam is mostly connected with the steel pipe concrete special-shaped column, but the overall cost of the H-shaped steel beam is high, and the steel beam is easy to be unstable under negative bending moment. As a novel combined beam, the U-shaped steel-concrete combined beam has the advantages of high rigidity and bearing capacity, less welding workload, good stability, good fire resistance, low manufacturing cost and the like. The traditional steel pipe concrete special-shaped column node connection mode mainly comprises an outer ring plate, an inner partition plate, an outward extending end plate and the like. As a traditional node connection mode, the node of the outer ring plate has high bearing capacity, high rigidity and clear force transmission path, but the ring plate is exposed to occupy more outdoor space, is contrary to the design concept of the special-shaped column and is not suitable for buildings such as schools, houses and the like. The inner partition plate node solves the problem that a connecting piece is outstanding, and has a good building function, but a special-shaped column steel pipe cavity is narrow, and if the inner partition plate is large in size, concrete pouring is very difficult, so that the inner partition plate node is only suitable for large-size steel pipe concrete columns. The overhanging end plate connects the column steel pipe with the flange of the I-shaped steel beam through the bolt, which accords with the development trend of the fabricated building, but belongs to the semi-rigid node category, so that the displacement angle between structural layers is large. In addition, the conventional connection between the column and the steel pipe is mainly performed by welding at a construction site, in addition to the connection between the beam and the column. Because the outer steel pipe is normally finished in a construction site, the field welding amount is large, and the installation efficiency is low. Particularly, when the welding machine is applied to high-rise buildings, high-risk welding operation is often carried out at high altitude, and the construction quality is difficult to guarantee.
Disclosure of Invention
The invention aims to provide a node of a steel tube concrete special-shaped column and a U-shaped steel-concrete combined beam, which aims to solve the problems in the prior art.
The technical scheme adopted for achieving the purpose of the invention is that the node of the steel tube concrete special-shaped column and the U-shaped steel-concrete combined beam comprises an L-shaped corner node, a T-shaped side node and a cross-shaped middle node.
The cross-shaped middle node comprises a steel pipe concrete special-shaped column I, four U-shaped steel-concrete combined beams, two outer ring plates I and eight vertical rib plates.
Steel pipe concrete dysmorphism post I includes upper prop steel pipe I and lower prop steel pipe I, and two outer crown plates I are connected respectively at the lower extreme of upper prop steel pipe I and the upper end of lower prop steel pipe I, and two outer crown plates I are laminated each other and are connected.
The cross sections of the upper column steel pipe I and the lower column steel pipe I are both in a cross shape, and four U-shaped steel-concrete combined beams are welded to four column limbs of the lower column steel pipe I respectively.
The L-shaped corner node comprises a steel pipe concrete special-shaped column II, two U-shaped steel-concrete combined beams, two outer ring plates II and four vertical rib plates.
The steel pipe concrete special-shaped column II comprises an upper column steel pipe II and a lower column steel pipe II, the two outer ring plates II are respectively connected to the lower end of the upper column steel pipe II and the upper end of the lower column steel pipe II, and the two outer ring plates II are mutually attached and connected.
The cross sections of the upper column steel pipe II and the lower column steel pipe II are L-shaped, and the two U-shaped steel-concrete combined beams are welded to two column limbs of the lower column steel pipe II respectively.
The T-shaped edge node comprises a steel pipe concrete special-shaped column III, three U-shaped steel-concrete composite beams, two outer ring plates III and six vertical rib plates.
The steel pipe concrete special-shaped column III comprises an upper column steel pipe III and a lower column steel pipe III, the two outer ring plates III are respectively connected to the lower end of the upper column steel pipe III and the upper end of the lower column steel pipe III, and the two outer ring plates III are mutually attached and connected.
The cross sections of the upper column steel pipe III and the lower column steel pipe III are in a T shape, and the three U-shaped steel-concrete composite beams are welded to three column limbs of the lower column steel pipe III respectively.
And each of the lower column steel pipe I, the lower column steel pipe II and the lower column steel pipe III is welded with two vertical rib plates, and the two vertical rib plates extend out of the column limb and are respectively welded to two sides of the U-shaped steel-concrete combined beam connected with the column limb.
Furthermore, the two outer ring plates I are connected through a plurality of high-strength bolts, the two outer ring plates II are connected through a plurality of high-strength bolts, and the two outer ring plates III are connected through a plurality of high-strength bolts.
Further, upper prop steel pipe I and lower prop steel pipe I all include a rectangle hollow steel pipe and two U-shaped steel I, and two U-shaped steel I weld respectively to the opposite both sides of rectangle hollow steel pipe and form the cross-shaped special-shaped steel pipe of cross-section, and the opening of U-shaped steel I is towards rectangle hollow steel pipe.
Further, the upper column steel pipe II and the lower column steel pipe II respectively comprise a rectangular hollow steel pipe and a U-shaped steel I, one side of the U-shaped steel I welded to the rectangular hollow steel pipe forms a special-shaped steel pipe with an L-shaped cross section, and the opening of the U-shaped steel I faces the rectangular hollow steel pipe.
Further, go up post steel pipe III and lower post steel pipe III and all include a rectangle hollow steel pipe and two U-shaped steel I, two U-shaped steel I weld respectively to the relative both sides of rectangle hollow steel pipe and form the special-shaped steel pipe that the cross-section is the T font, and the opening of U-shaped steel I is towards rectangle hollow steel pipe.
Further, the U-shaped steel-concrete combined beam comprises a beam top negative rib, a U-shaped steel II, a beam bottom longitudinal rib and a concrete web.
II openings of U-shaped steel are up and the tip welds perpendicularly on the column limb, and II widths of U-shaped steel are unanimous and both align with the column limb width, and a plurality of beam-bottom longitudinal bars are laid on the web of U-shaped steel II and tip and column limb welding, and the concrete web is located U-shaped steel II.
And the top of each U-shaped steel II is provided with a plurality of beam top negative ribs with the length direction consistent with that of the U-shaped steel II, each beam top negative rib comprises an upper layer and a lower layer, and the end parts of the upper layer and the lower layer of beam top negative ribs are respectively fixed on the upper outer ring plate and the lower outer ring plate.
And a concrete floor slab is poured above the U-shaped steel-concrete combined beam, and the plate bars and the beam top negative bars are positioned in the concrete floor slab.
Furthermore, a plurality of dovetail-shaped connecting pieces are arranged at the upper edges of two flanges of the U-shaped steel II at intervals, and transverse and longitudinal ribs of the plate ribs are embedded into gaps of the adjacent dovetail-shaped connecting pieces.
Furthermore, a plurality of steel bar connecting sleeves are welded on the outer ring plate I, the outer ring plate II and the outer ring plate III, and the beam top negative bars are connected with the corresponding outer ring plates through the steel bar connecting sleeves.
Further, the concrete web and the concrete floor are integrally poured.
A housing system having the above-described combination node, comprising the above-described node.
The invention has the beneficial effects that:
1. the multi-cavity steel pipe concrete special-shaped column is formed by welding a plurality of hot-rolled seamless square steel pipes at corners to form a square steel pipe concrete tube bundle with better integrity so as to delay the local buckling of the steel pipes and improve the constraint effect on concrete;
2. the web embedded U-shaped steel concrete composite beam directly embeds the zigzag tenon cut at the upper part of the U-shaped steel web into the concrete floor slab, and the laminated floor slab cast-in-situ layer and the web concrete are integrally cast, so that the shear connector comprises the zigzag tenon and the concrete, and the adverse effect of welding the connector is avoided; the floor slab negative reinforcement is arranged in the negative bending moment area, the U-shaped steel inner bottom longitudinal reinforcement is arranged in the positive bending moment area, and even if the bearing capacity of the U-shaped steel is reduced under fire, the concrete and the longitudinal reinforcement in the U-shaped steel inner bottom longitudinal reinforcement can still approximately form a reinforced concrete beam so as to delay the damage of the structure;
3. the beam-column joint connection comprises a lower connecting vertical rib plate and an upper connecting outer ring plate, and the width of the combined beam is equal to or similar to that of the special-shaped column limb, and the lower connecting vertical rib plate is welded on the outer wall of the column limb steel pipe and the outer wall of the U-shaped steel pipe in an attaching mode, so that the structure is simple, the force transmission path is direct, and the building attractiveness is not influenced; the hogging moment steel bars are connected with steel bar sleeves welded on the upper connecting outer ring plate, and the ring plate is also used as a column-column connecting plate, so that beam-column and column-column connection is realized, and the material consumption is reduced; the U-shaped steel web plate and the column steel pipe are welded to transfer the shearing force of the beam;
4. the beam-column joint meets the building assembly development requirement, the steel member assembly on the construction site basically takes bolt connection as the main part, and the beam-column joint has the characteristics of high installation efficiency and easy guarantee of construction quality.
Drawings
FIG. 1 is a schematic diagram of a node in a cross;
FIG. 2 is an assembly view of nodes in a cross;
FIG. 3 is a schematic view of an L-shaped corner node;
FIG. 4 is an assembled view of L-shaped corner nodes;
FIG. 5 is a schematic diagram of a T-shaped edge node;
FIG. 6 is an assembly view of T-shaped edge nodes;
FIG. 7 is a schematic view of U-shaped steel II.
In the figure: the steel pipe concrete special-shaped column comprises a steel pipe concrete special-shaped column I1, an upper column steel pipe I101-1, a lower column steel pipe I101-2, a steel bar connecting sleeve 103, a U-shaped steel-concrete combined beam 2, a beam top negative rib 201, a U-shaped steel II 202, a web plate 202-1, a flange 202-2, a dovetail-shaped connecting piece 202-3, a beam bottom longitudinal rib 203, a concrete web plate 204, a concrete floor 205, plate ribs 206, an outer ring plate I3, a vertical rib plate 4, a steel pipe concrete special-shaped column II 5, an upper column steel pipe II 501-1, a lower column steel pipe II 501-2, an outer ring plate II 6, a steel pipe concrete special-shaped column III 7, an upper column steel pipe III 701-1, a lower column steel pipe 701-2 and an outer ring plate III 8.
Detailed Description
The present invention will be further described with reference to the following examples, but it should be understood that the scope of the subject matter described above is not limited to the following examples. Various substitutions and alterations can be made without departing from the technical idea of the invention and the scope of the invention is covered by the present invention according to the common technical knowledge and the conventional means in the field.
Example 1:
the embodiment discloses a steel pipe concrete special-shaped column and U-shaped steel-concrete combined beam node, which comprises an L-shaped corner node, a T-shaped edge node and a cross-shaped middle node.
Referring to fig. 1, the cross-shaped middle node comprises a steel pipe concrete special-shaped column I1, four U-shaped steel-concrete composite beams 2, two outer annular plates I3 and eight vertical rib plates 4.
Referring to fig. 2, the concrete filled steel tube special-shaped column I1 comprises an upper column steel tube I101-1 and a lower column steel tube I101-2, two outer ring plates I3 are respectively connected to the lower end of the upper column steel tube I101-1 and the upper end of the lower column steel tube I101-2, and the two outer ring plates I3 are mutually attached and connected through a plurality of high-strength bolts.
The cross sections of the upper column steel pipe I101-1 and the lower column steel pipe I101-2 are all in a cross shape, the upper column steel pipe I101-1 and the lower column steel pipe I101-2 comprise a rectangular hollow steel pipe and two U-shaped steel I, the two U-shaped steel I are welded to two opposite sides of the rectangular hollow steel pipe respectively to form a special-shaped steel pipe with a cross-shaped section, and the opening of the U-shaped steel I faces the rectangular hollow steel pipe.
The four U-shaped steel-concrete composite beams 2 are respectively welded on four column limbs of the lower column steel pipe I101-2.
Referring to fig. 3, the L-shaped corner node includes a steel pipe concrete special-shaped column ii 5, two U-shaped steel-concrete composite beams 2, two outer ring plates ii 6, and four vertical rib plates 4.
Referring to fig. 4, the concrete filled steel tube special-shaped column ii 5 comprises an upper column steel tube ii 501-1 and a lower column steel tube ii 501-2, two outer ring plates ii 6 are respectively connected to the lower end of the upper column steel tube ii 501-1 and the upper end of the lower column steel tube ii 501-2, and the two outer ring plates ii 6 are mutually attached and connected by adopting a plurality of high-strength bolts.
The cross sections of the upper column steel pipe II 501-1 and the lower column steel pipe II 501-2 are L-shaped, the upper column steel pipe II 501-1 and the lower column steel pipe II 501-2 comprise a rectangular hollow steel pipe and a U-shaped steel I, the U-shaped steel I is welded to one side of the rectangular hollow steel pipe to form a special-shaped steel pipe with an L-shaped section, and the opening of the U-shaped steel I faces towards the rectangular hollow steel pipe.
The two U-shaped steel-concrete combined beams 2 are respectively welded on two column limbs of the lower column steel pipe II 501-2.
Referring to fig. 5, the T-shaped edge node comprises a steel pipe concrete special-shaped column iii 7, three U-shaped steel-concrete composite beams 2, two outer ring plates iii 8 and six vertical rib plates 4.
Referring to fig. 6, the steel tube concrete special-shaped column III 7 comprises an upper column steel tube III 701-1 and a lower column steel tube III 701-2, two outer ring plates III 8 are respectively connected to the lower end of the upper column steel tube III 701-1 and the upper end of the lower column steel tube III 701-2, and the two outer ring plates III 8 are mutually attached and connected through a plurality of high-strength bolts.
The cross sections of the upper column steel pipe III 701-1 and the lower column steel pipe III 701-2 are both T-shaped, the upper column steel pipe III 701-1 and the lower column steel pipe III 701-2 both comprise a rectangular hollow steel pipe and two U-shaped steels I, the two U-shaped steels I are respectively welded to two opposite sides of the rectangular hollow steel pipe to form a special-shaped steel pipe with a T-shaped section, and the opening of the U-shaped steel I faces the rectangular hollow steel pipe.
The three U-shaped steel-concrete combined beams 2 are respectively welded on three column limbs of the lower column steel pipe III 701-2.
And each column limb of the lower column steel pipe I101-2, the lower column steel pipe II 501-2 and the lower column steel pipe III 701-2 is welded with two vertical rib plates 4, and the two vertical rib plates 4 extend out of the column limb and are respectively welded to two sides of the U-shaped steel-concrete combined beam 2 connected with the column limb.
The U-shaped steel-concrete combined beam 2 comprises a beam top negative rib 201, a U-shaped steel II 202, a beam bottom longitudinal rib 203 and a concrete web 204.
The U-shaped steel II 202 is provided with an upward opening, the end part of the U-shaped steel II 202 is vertically welded on a column limb, the width of the U-shaped steel II 202 is consistent with that of the column limb, the width of the U-shaped steel II 202 is aligned with that of the column limb, a plurality of beam bottom longitudinal ribs 203 are laid on a web plate 202-1 of the U-shaped steel II 202, the end part of the beam bottom longitudinal ribs is welded with the column limb, and a concrete web plate 204 is located in the U-shaped steel II 202. The arrangement of the beam bottom longitudinal bars 203 meets the minimum reinforcement ratio of the common reinforced concrete beam, and the number of the beam bottom longitudinal bars is not less than 2.
The top of each U-shaped steel II 202 is provided with a plurality of beam top negative ribs 201 with the length direction consistent with that of the U-shaped steel II, each beam top negative rib 201 comprises an upper layer and a lower layer, and the end parts of the upper layer and the lower layer of beam top negative ribs 201 are respectively fixed on the upper outer ring plate and the lower outer ring plate. A plurality of steel bar connecting sleeves 103 are welded on the outer ring plate I3, the outer ring plate II 6 and the outer ring plate III 8, and the beam top negative bars 201 are connected with the corresponding outer ring plates through the steel bar connecting sleeves 103.
Referring to fig. 7, a plurality of dovetail-shaped connectors 202-3 are arranged at intervals on the upper edges of two flanges 202-2 of the U-shaped steel ii 202, and transverse and longitudinal ribs of the plate rib 206 are embedded in gaps between adjacent dovetail-shaped connectors 202-3. The U-shaped steel II 202 is manufactured by laser cutting the profile of the dovetail-shaped connecting piece 202-3 of the steel plate and then bending the cut steel plate.
It is worth to be noted that, in the multi-cavity steel pipe concrete special-shaped column in the embodiment, a plurality of hot-rolled seamless square steel pipes are welded at corners to form a square steel pipe concrete cylindrical bundle with good integrity, so that local buckling of the steel pipes is delayed and the constraint effect on concrete is improved. Meanwhile, the web embedded U-shaped steel concrete composite beam directly embeds the zigzag tenon cut at the upper part of the U-shaped steel web into the concrete floor slab, and the laminated floor slab cast-in-situ layer and the web concrete are integrally cast, so that the shear connector comprises the zigzag tenon and the concrete, and the adverse effect of welding the connector is avoided; the negative reinforcement of the floor slab is arranged in the negative bending moment area, the longitudinal reinforcement at the bottom in the U-shaped steel is arranged in the positive bending moment area, and even if the bearing capacity of the U-shaped steel is reduced under fire, the internal concrete and the longitudinal reinforcement can still approximately form a reinforced concrete beam to delay the damage of the structure. In addition, the beam-column joint connection comprises a lower connecting vertical rib plate and an upper connecting outer ring plate, the width of the combined beam is equal to or close to that of the special-shaped column limb, and the lower connecting vertical rib plate is welded on the outer wall of the column limb steel pipe and the outer wall of the U-shaped steel pipe in an attaching mode, so that the structure is simple and direct, the force transmission path is direct, and the building attractiveness is not influenced; the hogging moment steel bars are connected with steel bar sleeves welded on the upper connecting outer ring plate, and the ring plate is also used as a column-column connecting plate, so that beam-column and column-column connection is realized, and the material consumption is reduced; the U-shaped steel web plate and the column steel pipe are welded to transfer the shearing force of the beam. Besides, the beam-column joint meets the building assembly development requirement, the steel member assembly on the construction site basically takes bolt connection as the main part, and the beam-column joint has the characteristics of high installation efficiency and easy guarantee of construction quality.
Example 2:
the embodiment discloses a residential system with the combined nodes of the embodiment 1, which comprises the nodes of the embodiment 1.
Example 3:
the embodiment discloses a steel pipe concrete special-shaped column and U-shaped steel-concrete combined beam node, which comprises an L-shaped corner node, a T-shaped edge node and a cross-shaped middle node.
The cross-shaped middle node comprises a steel pipe concrete special-shaped column I1, four U-shaped steel-concrete combined beams 2, two outer annular plates I3 and eight vertical rib plates 4.
The steel pipe concrete special-shaped column I1 comprises an upper column steel pipe I101-1 and a lower column steel pipe I101-2, two outer ring plates I3 are respectively connected to the lower end of the upper column steel pipe I101-1 and the upper end of the lower column steel pipe I101-2, and the two outer ring plates I3 are mutually attached and connected.
The cross sections of the upper column steel pipe I101-1 and the lower column steel pipe I101-2 are both in a cross shape, and four U-shaped steel-concrete combination beams 2 are welded to four column limbs of the lower column steel pipe I101-2 respectively.
The L-shaped angle node comprises a steel pipe concrete special-shaped column II 5, two U-shaped steel-concrete combined beams 2, two outer annular plates II 6 and four vertical rib plates 4.
The steel pipe concrete special-shaped column II 5 comprises an upper column steel pipe II 501-1 and a lower column steel pipe II 501-2, the two outer ring plates II 6 are respectively connected to the lower end of the upper column steel pipe II 501-1 and the upper end of the lower column steel pipe II 501-2, and the two outer ring plates II 6 are mutually attached and connected.
The cross sections of the upper column steel pipe II 501-1 and the lower column steel pipe II 501-2 are both L-shaped, and the two U-shaped steel-concrete combined beams 2 are respectively welded on two column limbs of the lower column steel pipe II 501-2.
The T-shaped edge node comprises a steel pipe concrete special-shaped column III 7, three U-shaped steel-concrete composite beams 2, two outer ring plates III 8 and six vertical rib plates 4.
The steel pipe concrete special-shaped column III 7 comprises an upper column steel pipe III 701-1 and a lower column steel pipe III 701-2, two outer ring plates III 8 are respectively connected to the lower end of the upper column steel pipe III 701-1 and the upper end of the lower column steel pipe III 701-2, and the two outer ring plates III 8 are mutually attached and connected.
The cross sections of the upper column steel pipe III 701-1 and the lower column steel pipe III 701-2 are both in a T shape, and three U-shaped steel-concrete combination beams 2 are respectively welded on three column limbs of the lower column steel pipe III 701-2.
And each column limb of the lower column steel pipe I101-2, the lower column steel pipe II 501-2 and the lower column steel pipe III 701-2 is welded with two vertical rib plates 4, and the two vertical rib plates 4 extend out of the column limb and are respectively welded to two sides of the U-shaped steel-concrete combined beam 2 connected with the column limb.
Example 4:
the main structure of the present embodiment is the same as that of embodiment 3, and further, two outer ring plates i 3 are connected by a plurality of high-strength bolts, two outer ring plates ii 6 are connected by a plurality of high-strength bolts, and two outer ring plates iii 8 are connected by a plurality of high-strength bolts.
Example 5:
this embodiment major structure is with embodiment 3, and is further, go up I101-1 of post steel pipe and I101-2 of lower column steel pipe and all include a rectangle hollow steel pipe and two U-shaped steel I, two U-shaped steel I weld respectively to the relative both sides formation cross-shaped special-shaped steel pipe of rectangle hollow steel pipe, and the opening of U-shaped steel I is towards the rectangle hollow steel pipe.
Example 6:
the main structure of the embodiment is the same as that of embodiment 3, and further, the upper column steel tube II 501-1 and the lower column steel tube II 501-2 both comprise a rectangular hollow steel tube and a U-shaped steel I, the U-shaped steel I is welded to one side of the rectangular hollow steel tube to form a special-shaped steel tube with an L-shaped section, and the opening of the U-shaped steel I faces the rectangular hollow steel tube.
Example 7:
the main structure of the embodiment is the same as that of embodiment 3, and further, the upper column steel tube III 701-1 and the lower column steel tube III 701-2 both comprise a rectangular hollow steel tube and two U-shaped steels I, the two U-shaped steels I are respectively welded to two opposite sides of the rectangular hollow steel tube to form a special-shaped steel tube with a T-shaped section, and the opening of the U-shaped steel I faces the rectangular hollow steel tube.
Example 8:
the main structure of this embodiment is the same as that of embodiment 3, and further, the U-shaped steel-concrete composite beam 2 includes a beam top negative rib 201, a U-shaped steel ii 202, a beam bottom longitudinal rib 203, and a concrete web 204.
The U-shaped steel II 202 is provided with an upward opening, the end part of the U-shaped steel II 202 is vertically welded on a column limb, the width of the U-shaped steel II 202 is consistent with that of the column limb, the width of the U-shaped steel II 202 is aligned with that of the column limb, a plurality of beam bottom longitudinal ribs 203 are laid on a web plate 202-1 of the U-shaped steel II 202, the end part of the beam bottom longitudinal ribs is welded with the column limb, and a concrete web plate 204 is located in the U-shaped steel II 202.
The top of each U-shaped steel II 202 is provided with a plurality of beam top negative ribs 201 with the length direction consistent with that of the U-shaped steel II, each beam top negative rib 201 comprises an upper layer and a lower layer, and the end parts of the upper layer and the lower layer of beam top negative ribs 201 are respectively fixed on the upper outer ring plate and the lower outer ring plate.
A concrete floor 205 is poured above the U-shaped steel-concrete combined beam 2, and the plate ribs 206 and the beam top negative ribs 201 are positioned in the concrete floor 205.
Example 9:
the main structure of this embodiment is the same as that of embodiment 8, and further, referring to fig. 6, a plurality of dovetail connectors 202-3 are arranged at intervals on the upper edges of two flanges 202-2 of the U-shaped steel ii 202, and the transverse and longitudinal bars of the plate bar 206 are embedded into the gaps of the adjacent dovetail connectors 202-3.
Example 10:
the main structure of this embodiment is the same as that of embodiment 8, and further, a plurality of steel bar connecting sleeves 103 are welded on the outer annular plate i 3, the outer annular plate ii 6 and the outer annular plate iii 8, and the beam top negative rib 201 is connected with the corresponding outer annular plate through the steel bar connecting sleeves 103.
Example 11:
the main structure of this embodiment is the same as that of embodiment 8, and further, the concrete web 204 and the concrete floor 205 are cast integrally.
Claims (10)
1. The utility model provides a steel pipe concrete dysmorphism post and U-shaped steel-concrete combination beam node which characterized in that: the L-shaped corner nodes, the T-shaped edge nodes and the cross-shaped middle nodes are included;
the cross-shaped middle node comprises a steel pipe concrete special-shaped column I (1), four U-shaped steel-concrete combination beams (2), two outer annular plates I (3) and eight vertical rib plates (4);
the steel tube concrete special-shaped column I (1) comprises an upper column steel tube I (101-1) and a lower column steel tube I (101-2), two outer ring plates I (3) are respectively connected to the lower end of the upper column steel tube I (101-1) and the upper end of the lower column steel tube I (101-2), and the two outer ring plates I (3) are mutually attached and connected;
the cross sections of the upper column steel pipe I (101-1) and the lower column steel pipe I (101-2) are both in a cross shape, and four U-shaped steel-concrete combined beams (2) are respectively welded on four column limbs of the lower column steel pipe I (101-2);
the L-shaped angle node comprises a steel pipe concrete special-shaped column II (5), two U-shaped steel-concrete combined beams (2), two outer annular plates II (6) and four vertical rib plates (4);
the steel pipe concrete special-shaped column II (5) comprises an upper column steel pipe II (501-1) and a lower column steel pipe II (501-2), the two outer ring plates II (6) are respectively connected to the lower end of the upper column steel pipe II (501-1) and the upper end of the lower column steel pipe II (501-2), and the two outer ring plates II (6) are mutually attached and connected;
the cross sections of the upper column steel pipe II (501-1) and the lower column steel pipe II (501-2) are L-shaped, and the two U-shaped steel-concrete combined beams (2) are respectively welded on two column limbs of the lower column steel pipe II (501-2);
the T-shaped side node comprises a steel pipe concrete special-shaped column III (7), three U-shaped steel-concrete composite beams (2), two outer ring plates III (8) and six vertical rib plates (4);
the steel pipe concrete special-shaped column III (7) comprises an upper column steel pipe III (701-1) and a lower column steel pipe III (701-2), two outer ring plates III (8) are respectively connected to the lower end of the upper column steel pipe III (701-1) and the upper end of the lower column steel pipe III (701-2), and the two outer ring plates III (8) are mutually attached and connected;
the cross sections of the upper column steel pipe III (701-1) and the lower column steel pipe III (701-2) are both in a T shape, and three U-shaped steel-concrete composite beams (2) are respectively welded on three column limbs of the lower column steel pipe III (701-2);
two vertical rib plates (4) are welded on each column limb of the lower column steel pipe I (101-2), the lower column steel pipe II (501-2) and the lower column steel pipe III (701-2), and the two vertical rib plates (4) extend out of the column limb and are respectively welded to two sides of the U-shaped steel-concrete combined beam (2) connected with the column limb.
2. The node of the steel tube concrete special-shaped column and the U-shaped steel-concrete combined beam according to claim 1, characterized in that: the two outer ring plates I (3) are connected through a plurality of high-strength bolts, the two outer ring plates II (6) are connected through a plurality of high-strength bolts, and the two outer ring plates III (8) are connected through a plurality of high-strength bolts.
3. The node of the steel tube concrete special-shaped column and the U-shaped steel-concrete combined beam according to claim 1, characterized in that: the upper column steel pipe I (101-1) and the lower column steel pipe I (101-2) both comprise a rectangular hollow steel pipe and two U-shaped steels I, the two U-shaped steels I are respectively welded to two opposite sides of the rectangular hollow steel pipe to form a special-shaped steel pipe with a cross-shaped cross section, and the openings of the U-shaped steels I face the rectangular hollow steel pipe.
4. The node of the steel tube concrete special-shaped column and the U-shaped steel-concrete combined beam according to claim 1, characterized in that: the upper column steel pipe II (501-1) and the lower column steel pipe II (501-2) both comprise a rectangular hollow steel pipe and a U-shaped steel I, one side of the U-shaped steel I welded to the rectangular hollow steel pipe forms a special-shaped steel pipe with an L-shaped cross section, and the opening of the U-shaped steel I faces the rectangular hollow steel pipe.
5. The node of the steel tube concrete special-shaped column and the U-shaped steel-concrete combined beam according to claim 1, characterized in that: the upper column steel pipe III (701-1) and the lower column steel pipe III (701-2) respectively comprise a rectangular hollow steel pipe and two U-shaped steels I, the two U-shaped steels I are respectively welded to two opposite sides of the rectangular hollow steel pipe to form a special-shaped steel pipe with a T-shaped section, and the openings of the U-shaped steels I face the rectangular hollow steel pipe.
6. The node of the steel tube concrete special-shaped column and the U-shaped steel-concrete combined beam according to claim 1, characterized in that: the U-shaped steel-concrete combined beam (2) comprises a beam top negative rib (201), a U-shaped steel II (202), a beam bottom longitudinal rib (203) and a concrete web (204);
the opening of the U-shaped steel II (202) faces upwards, the end part of the U-shaped steel II is vertically welded on the column limb, the width of the U-shaped steel II (202) is consistent with that of the column limb, the width of the U-shaped steel II (202) is aligned with that of the column limb, a plurality of beam bottom longitudinal ribs (203) are laid on a web plate (202-1) of the U-shaped steel II (202), the end part of the beam bottom longitudinal ribs is welded with the column limb, and a concrete web plate (204) is located in the U-shaped steel II (202);
the top of each U-shaped steel II (202) is provided with a plurality of beam top negative ribs (201) with the length direction consistent with that of the U-shaped steel II, each beam top negative rib (201) comprises an upper layer and a lower layer, and the end parts of the upper layer and the lower layer of beam top negative ribs (201) are respectively fixed on the upper outer ring plate and the lower outer ring plate;
a concrete floor (205) is poured above the U-shaped steel-concrete combined beam (2), and the plate bars (206) and the beam top negative bars (201) are located in the concrete floor (205).
7. The node of the steel tube concrete special-shaped column and the U-shaped steel-concrete combined beam according to claim 6, wherein: the upper edges of two flanges (202-2) of the U-shaped steel II (202) are respectively provided with a plurality of dovetail-shaped connecting pieces (202-3) at intervals, and transverse and longitudinal bars of the plate bars (206) are embedded into gaps of the adjacent dovetail-shaped connecting pieces (202-3).
8. The node of the steel tube concrete special-shaped column and the U-shaped steel-concrete combined beam according to claim 6, wherein: a plurality of steel bar connecting sleeves (103) are welded on the outer ring plate I (3), the outer ring plate II (6) and the outer ring plate III (8), and the beam top negative rib (201) is connected with the corresponding outer ring plate through the steel bar connecting sleeves (103).
9. The node of the steel tube concrete special-shaped column and the U-shaped steel-concrete combined beam according to claim 6, wherein: the concrete web (204) and the concrete floor (205) are integrally cast.
10. A housing system having the combination node of claim 1, wherein: comprising a node according to any of claims 1 to 9.
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| CN202210737161.3A CN114960973A (en) | 2022-06-27 | 2022-06-27 | Steel pipe concrete special-shaped column and U-shaped steel-concrete combined beam node |
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