CN115387465B - Cold-formed thin-wall steel-wood combined energy consumption node and installation method thereof - Google Patents
Cold-formed thin-wall steel-wood combined energy consumption node and installation method thereof Download PDFInfo
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- CN115387465B CN115387465B CN202211081755.XA CN202211081755A CN115387465B CN 115387465 B CN115387465 B CN 115387465B CN 202211081755 A CN202211081755 A CN 202211081755A CN 115387465 B CN115387465 B CN 115387465B
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- 239000002023 wood Substances 0.000 title claims abstract description 122
- 238000005265 energy consumption Methods 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 7
- 238000009434 installation Methods 0.000 title abstract description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 130
- 239000010959 steel Substances 0.000 claims description 130
- 230000021715 photosynthesis, light harvesting Effects 0.000 claims description 35
- 239000002131 composite material Substances 0.000 claims description 20
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 9
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 9
- 241001330002 Bambuseae Species 0.000 claims description 9
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 9
- 239000011425 bamboo Substances 0.000 claims description 9
- 238000003825 pressing Methods 0.000 claims description 7
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 229910001209 Low-carbon steel Inorganic materials 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 6
- 210000001503 joint Anatomy 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000010079 rubber tapping Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 210000003027 ear inner Anatomy 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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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
-
- 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
- E04B1/185—Connections not covered by E04B1/21 and E04B1/2403, e.g. connections between structural parts of different material
-
- 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
-
- 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
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/29—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures
- E04C3/292—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures the materials being wood and metal
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/30—Columns; Pillars; Struts
- E04C3/36—Columns; Pillars; Struts of materials not covered by groups E04C3/32 or E04C3/34; of a combination of two or more materials
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
- E04H9/0235—Anti-seismic devices with hydraulic or pneumatic damping
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
- E04H9/0237—Structural braces with damping devices
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- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Emergency Management (AREA)
- Business, Economics & Management (AREA)
- Electromagnetism (AREA)
- Physics & Mathematics (AREA)
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- Composite Materials (AREA)
- Chemical & Material Sciences (AREA)
- Wood Science & Technology (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention discloses a cold-formed thin-wall steel-wood combined energy consumption node and an installation method thereof. The invention has the advantages of stable stress of the node, good overall performance, good energy consumption capability, simple structure, prefabricated parts in factories and convenient field installation.
Description
Technical Field
The invention relates to a beam column node technology, in particular to a cold-formed thin-wall steel-wood combined energy consumption node and an installation method thereof.
Background
The cold-formed thin-wall steel structure has the characteristics of small thickness, light weight, high strength and good shock resistance, the wood structure has good heat insulation performance, the strength-weight ratio is far higher than that of steel and concrete, the construction period is short, the cost is low, and the advantages of the cold-formed thin-wall steel structure and the wood structure can be combined to enable the cold-formed thin-wall steel structure and the wood structure to work cooperatively. However, the building structure may be damaged by local damage to the whole structure when extreme loads occur. The beam-column joint connection is used as a key part of the steel structure, and the beam and the column are connected into a whole, so that external loads such as gravity, wind load and the like can be effectively transmitted; under the action of strong earthquake, the beam end and the node domain generate plastic deformation to form a plastic hinge, so that the earthquake energy can be effectively absorbed and dissipated, the connection performance of the beam column node can directly influence the overall behavior of the frame structure under the action of load, and the reasonable design becomes an important link of structural design.
The node forms common in steel structure buildings in recent years are: inner baffle plates, outer ring plates, split bolts, outer sleeve plates, etc. Experiments and theoretical researches show that the improved nodes can achieve the purpose of outward movement of plastic hinges at the nodes when strong shock occurs no matter the reinforced nodes or the weakened nodes, and the brittle failure of the nodes caused by early occurrence of cracks is avoided. The beam column node at the present stage has the following technical problems: the beam column joints are difficult to construct, easy to crack and difficult to repair after buckling damage occurs.
Disclosure of Invention
The invention aims to: in order to overcome the defects of the prior art, the invention aims to provide the cold-formed thin-wall section steel-wood combined energy consumption node which has stable stress, good overall performance, good energy consumption capability, simple structure, prefabricated parts in factories and convenient field installation.
The technical scheme is as follows: the invention relates to a cold-formed thin-wall steel-wood combined energy consumption node which comprises an upper layer column, a lower layer column, a cross beam, a wood joint, steel corner pieces, energy consumption supports and splicing pieces, wherein the upper layer column and the lower layer column are respectively embedded in the upper part and the lower layer column, one corner edge of the steel corner pieces is fixedly connected with the top of the cross beam, the other corner edge is fixedly connected with the upper layer column and the wood joint, one corner edge of the energy consumption supports is fixedly connected with the bottom of the cross beam, the other corner edge is fixedly connected with the lower layer column and the wood joint, and the splicing pieces are symmetrically distributed on two sides of the connecting end of the cross beam and the wood joint and are connected with the cross beam, the wood joint and the energy consumption supports.
Preferably, the middle of the upper layer column and the lower layer column is a cold-formed thin-wall steel tube, the periphery is concrete, FRP composite materials are coated on the outer side of the concrete, the upper part and the lower part of the wood joint are respectively embedded into the cold-formed thin-wall steel tube of the upper layer column and the lower layer column, and reserved bolt holes are formed in the lower part of the upper layer column and the upper part of the lower layer column and are used for being connected with the wood joint.
Preferably, the beam is an H-shaped combined beam formed by a wood beam and a cold-formed thin-wall steel beam, the wood beam is a rectangular section beam, the cold-formed thin-wall steel beam is an H-shaped beam formed by splicing two U-shaped cold-formed thin-wall steel beams, the wood beam is fixedly connected with an upper flange of the cold-formed thin-wall steel beam to form a beam upper flange, a reserved bolt hole is formed in the end part of the beam upper flange and is used for being connected with a steel corner fitting, and a lower flange and a web of the cold-formed thin-wall steel beam are both provided with pre-perforated holes and are used for being connected with splicing pieces; the cold-formed thin-wall steel beam is slightly longer than the wood beam, and more parts are embedded into the wood joint.
Preferably, the upper part and the lower part of the wood joint are respectively provided with a pre-opening hole which is respectively used for being connected with an upper column and a lower column, the middle part of the wood joint is provided with a pre-opening groove and a middle pre-opening hole, the pre-opening groove is used for being embedded into the end part of the cold-formed thin-wall steel beam, and the middle pre-opening hole is used for being connected with the splicing piece.
Preferably, the steel corner fitting comprises a transverse plate, a vertical plate and triangular ribs connected between the transverse plate and the vertical plate, wherein the transverse plate and the vertical plate are respectively provided with reserved holes, and the reserved holes are respectively connected with the top of the transverse beam and the side wall of the upper column.
Preferably, the energy dissipation support comprises two force rods, an arch rod, two energy dissipation rods and an ear plate, wherein one end parts of the two force rods and one end part of the energy dissipation rod are fixedly connected through the ear plate, the other end parts of the two force rods are respectively connected with two ends of the arch rod through the ear plate, the other end parts of the energy dissipation rods are connected with the arch rod, and the energy dissipation rods are positioned between the two force rods; one of the two force rods is fixedly connected with the bottom of the cross beam and the splicing piece through the lug plates at the two ends of the two force rods, and the other two force rods are fixedly connected with the lower column and the wood joint through the lug plates at the ends of the two force rods.
Preferably, the arched rod adopts a combined structure of a bamboo plate and a steel plate, and the periphery of the bamboo plate is provided with a layer of steel plate as protection; the lug plate is provided with a reserved bolt hole and is used for being connected with the bottom of the cross beam, the splicing piece, the lower layer column and the wood joint;
preferably, the energy consumption rod and the arched rod are connected through a hinge, the energy consumption rod comprises a belleville spring, a tension and compression stop block, a hydraulic rod, a guide cylinder, a connecting rod and a damper, wherein one end of the belleville spring is sequentially connected with the tension and compression stop block, the damper and the connecting rod, and the other end of the belleville spring is sequentially connected with the tension and compression stop block, the hydraulic rod and the connecting rod; the belleville spring, the pulling and pressing stop block, the hydraulic rod and the damper are all positioned in the guide cylinder, and the connecting rods at two ends and the connecting ends of the hydraulic rod and the damper are positioned in the guide cylinder.
Preferably, the damper comprises a connecting plate, a first spring, a second spring, a first piston, a second piston, a steel plate, a first friction plate, a second friction plate, a friction ring, a piston rod, U-shaped mild steel, a stop block and a sleeve, wherein the connecting plate and the stop block are respectively fixed at the top end and the bottom end inside the sleeve; one end of the piston rod is arranged between the two steel plates, the other end of the piston rod extends out of the sleeve, and a friction ring is arranged on the contact surface of the piston rod and the two steel plates.
The invention discloses a method for installing a cold-formed thin-wall steel-wood combined energy consumption node, which comprises the following steps of:
s1, respectively embedding the upper part and the lower part of the upper layer column and the upper part of the lower layer column into the upper part and the lower part of the wood joint, and fixedly connecting the lower layer column and the wood joint through split bolts;
s2, embedding the end part of the cross beam into a pre-slotting in the middle of the wood joint;
s3, clamping a steel corner fitting into the corner point where the upper column and the cross beam are connected, wherein one corner edge of the steel corner fitting is fixedly connected with the upper column and the wood joint through a split bolt, and the other corner edge is fixedly connected with the top of the cross beam through a bolt;
s4, symmetrically distributing the two splicing pieces on two sides of the connecting end of the cross beam and the wood joint; the splicing piece is fixedly connected with the wood joint and the cross beam web plate through bolts;
s5, clamping the energy dissipation support into the corner point where the lower column and the cross beam are connected, wherein one corner edge of the energy dissipation support is fixedly connected with the lower column and the wood joint through bolts, and the other corner edge is connected with the bottom of the cross beam and the splicing piece through bolts.
The beneficial effects are that: compared with the prior art, the invention has the remarkable technical effects that: the reinforcing of steel corner fittings, splice and energy dissipation support between beam columns can enable the node to be stressed stably, all parts are tightly connected and buckled, the overall performance is good, the energy dissipation capacity is good due to the design and cooperation of the energy dissipation rods and the arched rods in the energy dissipation support, the structure is simple, the problem that beam hinge damage is easy to occur to the beam column connecting node like the traditional cold-formed thin-wall steel beam column is avoided, all parts can be prefabricated in factories, and the site installation is convenient.
Drawings
FIG. 1 is a schematic diagram of the structure of a cold-formed thin-walled steel-wood composite energy-consuming node of the present invention;
FIG. 2 is a schematic diagram of the upper column structure of the cold-formed thin-walled steel-wood composite energy-consuming node of the present invention;
FIG. 3 is a schematic diagram of the lower column structure of the cold-formed thin-walled steel-wood composite energy-consuming node of the invention;
FIG. 4 is a schematic diagram of a beam structure of a cold-formed thin-walled steel-wood composite energy-consuming node of the present invention;
FIG. 5 is a cross beam view of the cold-formed thin-walled steel-wood composite energy-consuming node of the present invention, wherein (a) is a side view and (b) is a front view;
FIG. 6 is a schematic diagram of the wood joint structure of the cold-formed thin-walled steel-wood composite energy-consuming node of the invention;
FIG. 7 is a front view of a wood joint of the cold-formed thin-walled steel-wood composite energy consuming node of the present invention;
FIG. 8 is a schematic view of the steel corner fitting structure of the cold-formed thin-walled steel-wood composite energy-consuming node of the present invention;
FIG. 9 is a schematic diagram of a dissipative brace construction of a cold-formed thin-walled steel-wood composite dissipative node of the invention;
FIG. 10 is a front elevational view of an arched rod of the cold-formed thin-walled steel-wood composite energy consuming node of the present invention;
FIG. 11 is a schematic cross-sectional view of a energy dissipating rod of the cold-formed thin-walled steel-wood composite energy dissipating node of the present invention;
FIG. 12 is a schematic view of the connection of the inner ear seat of the energy dissipation rod of the cold-formed thin-walled steel-wood composite energy dissipation node of the invention;
FIG. 13 is a schematic cross-sectional view of a damper of the cold-formed thin-walled steel-wood composite energy dissipating node of the present invention;
fig. 14 is a schematic view of a splicing member structure of the cold-formed thin-walled steel-wood composite energy consumption node of the invention.
In the figure: an upper column 1, a cold-formed thin-wall steel tube 1-1, 1-2 parts of concrete, 1-3 parts of FRP composite material, 1-4 parts of first reserved bolt holes, 2-1 parts of lower column, 2-1 parts of second reserved bolt holes, 2-2 parts of third reserved bolt holes, 3 parts of cross beam, 3-1 parts of wooden beam, 3-1a parts of fourth reserved bolt holes, 3-2 parts of cold-formed thin-wall steel beam, 3-2 parts of self-tapping screw, 3-2 parts of lower flange pre-hole, 3-2 parts of web pre-hole, 3-3 parts of structure glued surface, 4 parts of wooden joint, 4-1 parts of upper pre-hole, 4-2 parts of pre-groove, 4-3 parts of middle pre-hole, 4-4 parts of lower pre-hole, 4-5 parts of fifth reserved bolt holes, 5-1 parts of steel angle piece, 5-1 parts of transverse plate pre-hole, 5-2 parts of vertical plate riser pre-hole 5-2a, triangular rib 5-3, energy consumption brace 6, two force bar 6-1, arch bar 6-2, bamboo board 6-2-1, steel plate 6-2-2, energy consumption bar 6-3, belleville spring 6-3a, spring washer 6-3b, pull and press stop 6-3c, hydraulic bar 6-3d, guide cylinder 6-3e, connecting rod 6-3f, ear mount 6-3g, damper 6-3h, connecting plate 6-3h-a, first spring 6-3h-b1, second spring 6-3h-b2, first piston 6-3h-c1, second piston 6-3h-c2, steel plate 6-3h-d, first friction plate 6-3h-e1, second friction plate 6-3h-e2, the friction ring 6-3h-f, the piston rod 6-3h-g, the U-shaped mild steel 6-3h-h, the stop block 6-3h-i, the sleeve 6-3h-j, the lug seat 6-3h-k, the lug plate 6-4, the sixth reserved bolt hole 6-4a, the splice 7, the upper reserved bolt hole 7-1, the middle reserved bolt hole 7-2, the left reserved bolt hole 7-3, the lower reserved bolt hole 7-4, the bolt 8 and the split bolt 9.
Detailed Description
The invention will now be described in detail with reference to the drawings and to specific embodiments.
As shown in fig. 1, the cold-formed thin-walled steel-wood combined energy consumption node comprises an upper column 1, a lower column 2, a beam 3, a wood joint 4, steel corner pieces 5, energy consumption supports 6 and splicing pieces 7, wherein the upper and lower parts of the wood joint 4 are respectively connected with the upper column 1 and the lower column 2, the end part of the beam 3 is embedded into the wood joint 4, the steel corner pieces 5 are connected with the top of the beam 3 through bolts 8 and are connected with the upper column 1 through split bolts 9, the energy consumption supports 6 are connected with the bottom of the beam 3 and the lower column 2, and the splicing pieces 7 are symmetrically distributed on two sides of the beam 3 and are connected with the beam 3 and the wood joint 4 through bolts 8.
As shown in fig. 1-3 and 6-7, a cold-formed thin-walled steel pipe 1-1 is arranged between an upper layer column 1 and a lower layer column 2, concrete 1-2 is arranged at the periphery of the upper layer column 1 and the lower layer column 2, FRP composite materials 1-3 are coated on the outer side of the concrete 1-2, a first reserved bolt hole 1-4 and a second reserved bolt hole 2-1 are respectively arranged at the connecting position of the upper layer column 1 and the lower layer column 2 and a wood joint 4, the first reserved bolt hole 1-4 of the upper layer column 1 corresponds to the upper portion pre-perforated hole 4-1 of the wood joint 4 so as to be convenient for the upper layer column 1 and the lower layer column 2 to be connected through a split bolt 9, and the second reserved bolt hole 2-1 of the lower layer column 2 corresponds to the lower portion pre-perforated hole 4-4 of the wood joint 4 so as to be convenient for the upper layer column and the lower layer column 2 to be connected through the split bolt 9; a third reserved bolt hole 2-2 is arranged at the joint of the lower part of the lower layer column 2 and the energy dissipation support 6.
As shown in fig. 4-5 and 8-10, the cross beam 3 is a composite beam formed by a wood beam 3-1 and a cold-formed thin-walled steel beam 3-2, the wood beam 3-1 is a rectangular cross-section beam, the cold-formed thin-walled steel beam 3-2 is formed by splicing two U-shaped cold-formed thin-walled steel beams through self-tapping screws 3-2a, a structural bonding surface 3-3 is arranged between the wood beam 3-1 and the cold-formed thin-walled steel beam 3-2, reserved bolt holes (namely, the wood beam 3-1 and a fourth reserved bolt hole 3-1a of an upper flange of the cold-formed thin-walled steel beam 3-2) are formed at the end of the cross beam 3, wherein the wood beam 3-1 and the fourth reserved bolt hole 3-1a of an upper flange of the cold-formed thin-walled steel beam 3-2 correspond to a diaphragm reserved hole 5-1a of a steel angle piece 5 so that the steel angle piece 5 is connected with the top of the cross beam 3 through bolts 8, the lower flange pre-perforated 3-2b and a web pre-perforated 3-2c of the cold-formed thin-formed steel beam 3-2 are respectively connected with the lower bolt holes 7-4 of the splicing piece 7, the middle bolt holes 7-formed by the pre-perforated steel beam 3-formed by the steel beam 3-2, and the pre-formed thin-walled steel beam 3-2 is slightly lower than the steel beam 3-formed by the steel beam 3-4 and the steel beam 3-formed by the pre-formed thin-steel beam 2.
As shown in fig. 6 and 7, the upper pre-opening hole 4-1 of the wood joint corresponds to the first reserved bolt hole 1-4 of the upper column 1, the lower pre-opening hole 4-4 of the wood joint corresponds to the second reserved bolt hole 2-1 of the lower column 2, the middle pre-opening hole 4-3 of the wood joint corresponds to the left reserved bolt hole 7-3 of the splicing piece 7, a fifth reserved bolt hole 4-5 is arranged at the joint of the lower part of the wood joint 4 and the energy dissipation support 6, the pre-opening hole 4-2 is arranged at the intersection position of the wood joint 4 and the cold-formed thin-wall steel beam 3-2, and the size of a blind groove (pre-opening hole 4-2) is slightly larger than the thickness of the cold-formed thin-wall steel beam 3-2, so that the cold-formed thin-wall steel beam 3-2 is conveniently embedded into the wood joint 4.
As shown in fig. 8, the steel angle 5 comprises a cross plate 5-1, a vertical plate 5-2 and a triangular rib 5-3, the cross plate 5-1 and the vertical plate 5-2 are respectively provided with a reserved hole through welding connection, the cross plate reserved hole 5-1a corresponds to a fourth reserved bolt hole 3-1a of the upper flange of the wood beam 3-1 and the cold-formed thin-wall steel beam 3-2, the vertical plate reserved hole 5-2a corresponds to a first reserved bolt hole 1-4 of the upper column 1 through bolt connection and is connected through a split bolt 9,
as shown in fig. 9, the energy dissipation brace 6 comprises two force rods 6-1, an arch rod 6-2, energy dissipation rods 6-3 and ear plates 6-4, wherein the arch rod 6-2 adopts a bamboo plate and steel plate combined structure, the two force rods 6-1 are connected with the lower layer column 2 and the cold-formed thin-wall steel beam 3-2 through the ear plates 6-4 and bolts, the ear plates 6-4 are provided with sixth reserved bolt holes 6-4a, the sixth reserved bolt holes 6-4a of the upper two ear plates 6-4 correspond to the lower reserved bolt holes 7-4 of the splicing piece 7 and the lower flange pre-opening holes 3-2b of the cold-formed thin-wall steel beam 3-2, so that the ear plates 6-4 are connected with the cross beam 3 and the splicing piece 7; the sixth reserved bolt hole 6-4a of one lug plate 6-4 at the lower part corresponds to the third reserved bolt hole 2-2 of the lower column 2, so that the lug plate 6-4 is connected with the lower column and the wood joint; one end of each two-force rod 6-1 is in butt joint through an ear plate 6-4 and forms two corner edges of the energy dissipation support 6, the other end of each two-force rod 6-1 is connected with two ends of the arched rod 6-2 through the ear plate 6-4, one end of each energy dissipation rod 6-3 is connected with the corner point of the butt joint of each two-force rod 6-1, the other end of each energy dissipation rod is connected with the arched rod 6-2, the energy dissipation rods 6-3 are connected with the arched rods 6-2 through hinges, and each energy dissipation rod 6-3 consists of a belleville spring 6-3a, a spring washer 6-3b, a pulling and pressing stop block 6-3c, a hydraulic rod 6-3d, a guide cylinder 6-3e, a connecting rod 6-3f, an ear seat 6-3g and a damper 6-3 h.
As shown in FIG. 10, the arched rod 6-2 is formed by combining a bamboo board 6-2-1 and a steel board 6-2-2, wherein the periphery of four side surfaces of the bamboo board 6-2-1 is provided with a layer of steel board 6-2-2 as protection, and the arched rod is bent along one long side of the bamboo board 6-2-1 to form an arch during manufacturing.
As shown in fig. 11 and 12, the energy consumption rod 6-3 is composed of a belleville spring 6-3a, a spring washer 6-3b, a pull-press stop block 6-3c, a hydraulic rod 6-3d, a guide cylinder 6-3e, a connecting rod 6-3f, an ear seat 6-3g and a damper 6-3h, one end of the belleville spring 6-3a is sequentially connected with the pull-press stop block 6-3c, the damper 6-3h and the connecting rod 6-3f, and the other end is sequentially connected with the pull-press stop block 6-3c, the hydraulic rod 6-3d and the connecting rod 6-3f; the belleville spring 6-3a, the pulling and pressing stop block 6-3c, the hydraulic rod 6-3d and the damper 6-3h are all positioned in the guide cylinder 6-3e, and the connecting ends of the connecting rods 6-3f at the two ends, the hydraulic rod 6-3d and the damper 6-3h are positioned in the guide cylinder 6-3 e.
The two ends of the belleville spring 6-3a are fixedly arranged on the pulling and pressing stop block through a spring washer 6-3 b. The connecting rod 6-3f, the pulling and pressing stop block 6-3c, the damper 6-3h and the hydraulic rod 6-3d are connected through an ear seat 6-3g and a bolt, and the ear seat 6-3g is provided with a reserved bolt hole and is connected to the connecting rod 6-3f and the pulling and pressing stop block 6-3c through a bolt.
As shown in FIG. 13, the damper 6-3h is composed of a connecting plate 6-3h-a, a first spring 6-3h-b1, a second spring 6-3h-b2, a first piston 6-3h-c1, a second piston 6-3h-c2, a steel plate 6-3h-d, a first friction plate 6-3h-e1, a second friction plate 6-3h-e2, a friction ring 6-3h-f, a piston rod 6-3h-g, U-shaped soft steel 6-3h-h, a stopper 6-3h-i, a sleeve 6-3h-j and an ear mount 6-3 h-k. The connecting plate 6-3h-a and the stop block 6-3h-i are respectively fixed at the top end and the bottom end in the sleeve, two steel plates 6-3h-d are arranged in the sleeve in parallel, two ends of the two steel plates are respectively fixedly connected with the connecting plate 6-3h-a and the stop block 6-3h-i, a first piston 6-3h-c1 is sleeved on the two steel plates 6-3h-d and is positioned below the connecting plate 6-3h-a, the first piston 6-3h-c1 is connected with the connecting plate 6-3h-a through a first spring 6-3h-b1, a plurality of first springs 6-3h-b1 can be arranged, the lower end of the first piston 6-3h-c1 is sequentially provided with a first friction plate 6-3h-e1, a second piston 6-3h-c2, U-shaped soft steel 6-3h-c2 and a second friction plate 6-3h-e2, the first piston 6-3h-e1, the second piston 6-3h-c2, U-shaped soft steel 6-3h-c2 and the second friction plate 6-3h-e2 are symmetrically arranged between the two steel plates and the stop block 6-3h-i and the two friction plates 6-3h-b 2; one end of the piston rod 6-3h-g is arranged between the two steel plates 6-3h-d, the other end extends out of the sleeve 6-3h-j, a friction ring 6-3h-f is sleeved on the contact surface of the piston rod 6-3h-g and the two steel plates 6-3h-d, the friction ring 6-3h-f can also be connected to the piston rod 6-3h-g through a connecting piece, and the lug seat 6-3h-k is fixedly connected to the top of the sleeve 6-3 h-j.
The U-shaped mild steel 6-3h-h is connected with the piston 6-3h-c and the friction plate 6-3h-e through bolts, and a friction ring 6-3h-f with proper inner diameter is selected to be sleeved on the piston rod 6-3 h-g.
As shown in fig. 14, the splice pieces 7 are symmetrically distributed on two sides of the cross beam 3 and are connected with the cross beam 3 and the wood joint 4 through bolts 8, the upper reserved bolt holes 7-1 correspond to pre-openings of the upper flange of the cold-formed thin-walled steel beam 3-2 through bolts, the lower reserved bolt holes 7-4 correspond to pre-openings 3-2b of the lower flange of the cold-formed thin-walled steel beam 3-2 and the sixth reserved bolt holes 6-4a of the two lug plates 6-4 on the upper portion of the energy dissipation support 6, the left reserved bolt holes 7-3 correspond to pre-openings 4-3 in the middle of the wood joint, and the middle reserved bolt holes 7-2 correspond to pre-openings 3-2c of the web of the cold-formed thin-walled steel beam 3-2, so that the splice pieces 7 are connected with the cross beam 3, the wood joint 4, the steel corner pieces 5 and the energy dissipation support 6.
The cold-formed thin-wall steel-wood combined energy-consumption node is stable in stress, good in overall performance, good in energy-consumption capability, simple in structure, capable of being prefabricated in factories and convenient to install in site.
The invention discloses a method for installing a cold-formed thin-wall steel-wood combined energy consumption node, which comprises the following steps of:
step one: embedding the upper part and the lower part of the wood joint 4 into the lower part of the upper layer column 1 and the upper part of the lower layer column 2 respectively, and enabling the first reserved bolt holes 1-4 of the upper layer column 1 to correspond to the upper pre-opened holes 4-1 of the wood joint 4; the second reserved bolt hole 2-1 of the lower column 2 corresponds to the lower pre-opened hole 4-4 of the wood joint 4, and the lower column 2 is fixedly connected with the wood joint 4 through a split bolt 9;
step two: the beam 3 is connected with the wood joint 4, and a part of the cold-formed thin-wall steel beam 3-2, which is more than the wood beam 3-1, is embedded into a pre-slotting 4-2 in the middle of the wood joint 4;
step three: the steel corner fitting 5 is clamped into the corner point where the upper column 1 and the cross beam 3 are connected, the pre-opening hole 5-2a on the vertical plate 5-2 of the steel corner fitting 5 corresponds to the first reserved bolt hole 1-4 of the upper column 1, the vertical plate 5-2 of the steel corner fitting 5 is fixedly connected with the upper column 1 and the wood joint 4 through the split bolt 9, and the pre-opening hole 5-1a on the transverse plate 5-1 of the steel corner fitting 5 corresponds to the third reserved bolt hole 3-1a of the wood beam 3-1 and the upper flange of the cold-formed thin-wall steel beam 3-2;
step four: two splicing pieces 7 are distributed on two sides of the connecting end of a beam 3 and a wood joint 4, the upper reserved bolt holes 7-1 of the splicing pieces 7 correspond to the third reserved bolt holes 3-1a of the upper flanges of the beam 3-1 and a cold-formed thin-wall steel beam 3-2, the left reserved bolt holes 7-3 correspond to the middle pre-opened holes 4-3 of the wood joint, the middle reserved bolt holes 7-2 correspond to the web pre-opened holes 3-2c of the cold-formed thin-wall steel beam 3-2, the lower reserved bolt holes 7-4 correspond to the lower flange pre-opened holes 3-2b of the cold-formed thin-wall steel beam 3-2, then the upper flange parts of the splicing pieces 7 are fixedly connected with the upper flange of the beam 3 and the transverse plate 5-1 of the steel corner piece 5 through bolts 8, the middle of the splicing pieces 7 are fixedly connected with the web of the cold-formed thin-wall steel beam 3-2 through bolts 8, and the left side of the splicing pieces 7 are fixedly connected with the wood joint 4 through bolts 8;
step five: the energy dissipation support 6 is clamped into the corner point where the lower column 2 and the cross beam 3 are connected, the energy dissipation support 6 is positioned at the bottom of the cross beam and comprises a two-force rod 6-1, an arch rod 6-2, an energy dissipation rod 6-3 and an ear plate 6-4, the two-force rod 6-1 is connected with the lower column 2 and the cold-formed thin-wall steel beam 3-2 through the ear plate 6-4 and bolts, a fourth reserved bolt hole 6-4a of the upper two ear plates 6-4 corresponds to a lower flange pre-opening hole 3-2b of the cold-formed thin-wall steel beam 3-2 and a lower reserved bolt hole 7-4 of the splicing piece 7, and the energy dissipation support 6 is fixedly connected with the cold-formed thin-wall steel beam 3-2 and the splicing piece 7 through bolts 8; the pre-opening hole of the lower lug plate 6-4 corresponds to the pre-opening hole of the lower column and the wood joint and is fixedly connected with the lower column 2 and the wood joint 4 through a split bolt 9.
Claims (4)
1. The cold-formed thin-walled steel-wood combined energy consumption node is characterized by comprising an upper layer column (1), a lower layer column (2), a cross beam (3), a wood joint (4), steel corner pieces (5), energy consumption supports (6) and splicing pieces (7), wherein cold-formed thin-walled steel pipes (1-1) are arranged between the upper layer column (1) and the lower layer column (2), concrete (1-2) is arranged on the periphery of the cold-formed thin-walled steel pipes, FRP composite materials (1-3) are coated on the outer sides of the concrete (1-2), the upper part and the lower part of the wood joint (4) are respectively embedded into the cold-formed thin-walled steel pipes (1-1) of the upper layer column (1) and the lower layer column (2), and reserved bolt holes are formed in the lower part of the upper layer column (1) and the upper part of the lower layer column (2) and are used for being connected with the wood joint (4); the beam (3) is an I-shaped combined beam formed by a wood beam (3-1) and a cold-formed thin-wall steel beam (3-2), the wood beam (3-1) is a rectangular cross-section beam, the cold-formed thin-wall steel beam (3-2) is an I-shaped beam formed by splicing two U-shaped cold-formed thin-wall steel beams, the wood beam (3-1) and an upper flange of the cold-formed thin-wall steel beam (3-2) are fixedly connected to form an upper flange of the beam (3), reserved bolt holes are formed in the end parts of the upper flange of the beam (3) and are used for being connected with steel corner pieces (5), and pre-openings are formed in the lower flange and a web of the cold-formed thin-wall steel beam (3-2) and are used for being connected with energy-consumption supports (6) and splicing pieces (7); the cold-formed thin-wall steel beam (3-2) is slightly longer than the wood beam (3-1), and the rest part is embedded into one side wall of the middle part of the wood joint (4); the upper part and the lower part of the wood joint (4) are respectively provided with a pre-opening hole which is respectively used for being connected with the upper column (1) and the lower column (2), the middle part of the wood joint (4) is provided with a pre-opening hole (4-2) and a middle pre-opening hole (4-3), the pre-opening hole (4-2) is used for being embedded into the end part of the cold-formed thin-wall steel beam (3-2), and the middle pre-opening hole is used for being connected with the splicing piece (7); the steel corner fitting (5) comprises a transverse plate (5-1), a vertical plate (5-2) and triangular ribs (5-3) connected between the transverse plate (5-1) and the vertical plate (5-2), wherein the transverse plate (5-1) and the vertical plate (5-2) are respectively provided with preformed holes, and are respectively connected with the upper flange of the transverse beam (3) and the side wall of the upper column (1); one corner edge of the steel corner piece (5) is fixedly connected with the top of the cross beam (3), the other corner edge is fixedly connected with the upper column (1) and the wood joint (4), one corner edge of the energy dissipation support (6) is fixedly connected with the bottom of the cross beam (3), the other corner edge is fixedly connected with the lower column (2) and the wood joint (4), and the splicing pieces (7) are symmetrically distributed on two sides of the connecting end of the cross beam (3) and the wood joint and are connected with the cross beam (3), the wood joint (4) and the energy dissipation support (6);
the energy dissipation support (6) comprises two force rods (6-1), an arch rod (6-2), energy dissipation rods (6-3) and an ear plate (6-4), wherein the two force rods (6-1) are two, one end parts of the two force rods (6-1) and one end part of the energy dissipation rod (6-3) are fixedly connected through the ear plate (6-4), the other end parts of the two force rods (6-1) are respectively connected with two ends of the arch rod (6-2) through the ear plate (6-4), the other end parts of the energy dissipation rods (6-3) are connected with the arch rod (6-2), and the energy dissipation rods (6-3) are located between the two force rods (6-1); one of the two force rods (6-1) is fixedly connected with the lower flange of the cross beam (3) and the splicing piece (7) through the lug plates (6-4) at the two ends of the two force rods, and the other two force rods (6-1) are fixedly connected with the lower column (2) and the wood joint (4) through the lug plates (6-4) at the end parts of the two force rods;
the energy consumption rod (6-3) is connected with the arch-shaped rod (6-2) through a hinge, the energy consumption rod (6-3) comprises a belleville spring (6-3 a), a tension and compression stop block (6-3 c), a hydraulic rod (6-3 d), a guide cylinder (6-3 e), a connecting rod (6-3 f) and a damper (6-3 h), one end of the belleville spring (6-3 a) is sequentially connected with the tension and compression stop block (6-3 c), the damper (6-3 h) and the connecting rod (6-3 f), and the other end of the belleville spring is sequentially connected with the tension and compression stop block (6-3 c), the hydraulic rod (6-3 d) and the connecting rod (6-3 f); the belleville spring (6-3 a), the pulling and pressing stop block (6-3 c), the hydraulic rod (6-3 d) and the damper (6-3 h) are all positioned in the guide cylinder (6-3 e), and connecting ends of the connecting rods (6-3 f) at two ends, the hydraulic rod (6-3 d) and the damper (6-3 h) are positioned in the guide cylinder (6-3 e).
2. The cold-formed thin-walled steel-wood combined energy consumption node according to claim 1 is characterized in that the arched rod (6-2) adopts a bamboo plate and steel plate combined structure, and the periphery of the bamboo plate is provided with a layer of steel plate as protection; the ear plate (6-4) is provided with a reserved bolt hole (6-4 a) for being connected with the bottom of the cross beam (3), the splicing piece (7) and the lower column (2) and the wood joint (4).
3. The cold-formed thin-walled steel-wood combined energy consuming node of claim 1, wherein the damper (6-3 h) comprises a connecting plate (6-3 h-a), a first spring (6-3 h-b 1), a second spring (6-3 h-b 2), a first piston (6-3 h-c 1), a second piston (6-3 h-c 2), a steel plate (6-3 h-d), a first friction plate (6-3 h-e 1), a second friction plate (6-3 h-e 2), a friction ring (6-3 h-f), a piston rod (6-3 h-g), a U-shaped mild steel (6-3 h-h), a stopper (6-3 h-i) and a sleeve (6-3 h-j), the connecting plate (6-3 h-a) and the stop block (6-3 h-i) are respectively fixed at the top end and the bottom end inside the sleeve, two steel plates (6-3 h-d) are arranged in the sleeve in parallel, two ends of the two steel plates are respectively fixedly connected with the connecting plate (6-3 h-a) and the stop block (6-3 h-i), the first piston (6-3 h-c 1) is sleeved on the two steel plates (6-3 h-d) and is positioned below the connecting plate (6-3 h-a), the first piston (6-3 h-c 1) is connected with the connecting plate (6-3 h-a) through a first spring (6-3 h-b 1), a first friction plate (6-3 h-e 1), a second piston (6-3 h-c 2), U-shaped soft steel (6-3 h-h) and a second friction plate (6-3 h-e 2) are sequentially arranged at the lower end of the first piston (6-3 h-c 1), the first friction plate (6-3 h-e 1), the second piston (6-3 h-c 2), the U-shaped soft steel (6-3 h-h) and the second friction plate (6-3 h-e 2) are two and are symmetrically arranged between the two steel plates (6-3 h-d) and the inner wall of the sleeve (6-3 h-j), and the second friction plate (6-3 h-e 2) is connected with the stop block (6-3 h-i) through a second spring (6-3 h-b 2); one end of the piston rod (6-3 h-g) is arranged between the two steel plates (6-3 h-d), the other end of the piston rod extends out of the sleeve (6-3 h-j), and a friction ring (6-3 h-f) is arranged on the contact surface of the piston rod (6-3 h-g) and the two steel plates (6-3 h-d).
4. A method of installing a cold-formed thin-walled steel-wood composite energy consuming node as claimed in any of claims 1 to 3, comprising the steps of:
s1, respectively embedding the upper part and the lower part of a wood joint (4) into the lower part of an upper layer column (1) and the upper part of a lower layer column (2), and enabling a first reserved bolt hole (1-4) of the upper layer column (1) to correspond to an upper pre-opening hole (4-1) of the wood joint (4); the second reserved bolt hole (2-1) of the lower column (2) corresponds to the lower pre-opening hole (4-4) of the wood joint (4), and the lower column (2) is fixedly connected with the wood joint (4) through a split bolt (9);
s2, connecting the cross beam (3) with the wood joint (4), and embedding more parts of the cold-formed thin-wall steel beam (3-2) than the wood beam (3-1) into a pre-slotting (4-2) in the middle of the wood joint (4);
s3, clamping a steel corner fitting (5) into the corner point where the upper column (1) is connected with the cross beam (3), wherein a pre-opening hole (5-2 a) on a vertical plate (5-2) of the steel corner fitting (5) corresponds to a first reserved bolt hole (1-4) of the upper column (1), and fixedly connecting the vertical plate (5-2) of the steel corner fitting (5) with the upper column (1) and the wood joint (4) through a split bolt (9), wherein the pre-opening hole (5-1 a) on a transverse plate (5-1) of the steel corner fitting (5) corresponds to a third reserved bolt hole (3-1 a) on the upper flanges of the wood beam (3-1) and the cold-formed thin-wall steel beam (3-2);
s4, symmetrically distributing two splicing pieces (7) on two sides of a connecting end of a beam (3) and a wood joint (4), enabling upper reserved bolt holes (7-1) of the splicing pieces (7) to correspond to third reserved bolt holes (3-1 a) of upper flanges of the beam (3-1) and a cold-formed thin-wall steel beam (3-2), enabling left reserved bolt holes (7-3) to correspond to middle reserved holes (4-3) of the wood joint, enabling middle reserved bolt holes (7-2) to correspond to web reserved holes (3-2 c) of the cold-formed thin-wall steel beam (3-2), enabling lower reserved bolt holes (7-4) to correspond to lower flange reserved holes (3-2 b) of the cold-formed thin-wall steel beam (3-2), then fixedly connecting the upper parts of the splicing pieces (7) with transverse plates (5-1) of upper flanges of the beam (3) and steel corner pieces (5) through bolts (8), fixedly connecting the middle of the splicing pieces (7) with the cold-formed thin-wall steel beam (3-2) through bolts (8), and fixedly connecting the left reserved bolt holes (7) with the left flange (4) through the bolts (8);
s5, clamping an energy consumption support (6) into the corner point where the lower column (2) is connected with the cross beam (3), wherein the energy consumption support (6) is positioned at the bottom of the cross beam and comprises a two-force rod (6-1), an arch-shaped rod (6-2), the energy consumption rod (6-3) and an ear plate (6-4), the two-force rod (6-1) is connected with the lower column (2) and the cold-formed thin-wall steel beam (3-2) through the ear plate (6-4) and a bolt, a fourth reserved bolt hole (6-4 a) of the upper two ear plates (6-4) is corresponding to a lower flange pre-perforated hole (3-2 b) of the cold-formed thin-wall steel beam (3-2) and a lower reserved bolt hole (7-4) of a splicing piece (7), and the energy consumption support (6) is fixedly connected with the cold-formed thin-wall steel beam (3-2) and the splicing piece (7) through the bolt (8); the pre-opening hole of the lower lug plate (6-4) corresponds to the pre-opening hole of the lower column and the wood joint, and is fixedly connected with the lower column (2) and the wood joint (4) through a split bolt (9).
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