CN109723151A - A kind of more high-rise wood/bamboo frame structure bean column nodes - Google Patents

A kind of more high-rise wood/bamboo frame structure bean column nodes Download PDF

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Publication number
CN109723151A
CN109723151A CN201910143811.XA CN201910143811A CN109723151A CN 109723151 A CN109723151 A CN 109723151A CN 201910143811 A CN201910143811 A CN 201910143811A CN 109723151 A CN109723151 A CN 109723151A
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China
Prior art keywords
column
steel
wood
bamboo
node
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Pending
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CN201910143811.XA
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Chinese (zh)
Inventor
周爱萍
瞿尚超
黄东升
沈玉蓉
王俊凯
吴宁童
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Nanjing Forestry University
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Nanjing Forestry University
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Priority to CN201910143811.XA priority Critical patent/CN109723151A/en
Publication of CN109723151A publication Critical patent/CN109723151A/en
Pending legal-status Critical Current

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Abstract

This patent provides a kind of more high-rise wood/bamboo frame structure bean column nodes, the connection stiffness is big, Path of Force Transfer safe and reasonable, take full advantage of wooden (bamboo) material intensity, the stress performance for improving wooden (bamboo) frame column/beam, avoids the brittle break of beam column component, increases the ductility of structure, so that structural elements and node is given full play to material property, while also there is better shock resistance.A kind of more high-rise wood/bamboo frame structure bean column nodes, the node includes steel box column, upper and lower wood/bamboo frame column is connect with steel column by the pin and bolt affixed with steel column top and the bottom, the U-type groove steel by being fixed in steel column two sides adds the stirrup to play the role of fastening and connect wood/bamboo Vierendeel girder with steel column.

Description

A kind of more high-rise wood/bamboo frame structure bean column nodes
Technical field
This patent is related to structure building materials technology field, provides a kind of more high-rise wood/bamboo frame structure bean column nodes, it is intended to Overcome that more high-rise wood/bamboo frame structure bean column node rigidity in the prior art are less than normal, wood/bamboo beam column band is pressurized and creep lacks It falls into.
Background technique
Building structure (referred to as structure) refers in building (including structures), is made by construction material for bearing Various loads or effect, to play the space-load system of skeleton function.Building structure can divide because construction material used is different For concrete structure, masonry structure, steel construction, light section steel structure, timber structure and composite structure etc..
Building element (referred to as component) is subject to the load of building, guarantees the part of fabric structure safety, as load bearing wall, Column, floor, roof truss, stair, basis etc..
Building frame (referred to as frame) is the static determinacy being formed by connecting by various rod pieces by node or hyperstatic plane or sky Between system.
The rigidity of frame depends on the rigidity of component and node itself, and the design of structure node is that structure absorption seismic energy is big Small key factor.At the same time, node is that structure is stabilized, the foundation that consumes energy and moulding are able to the basis moulded.
The breakthrough of wood/Bamboo structural building structural system is all inseparable with node way.Wood/bamboo wood has unlike steel can Weldering property also can realize connection by pouring anchor bar unlike concrete.The connection of wood/bamboo structure and its calculation method with Other materials has very big difference.If fruit tree/bamboo structure ultimate failure position occurs at node, then the material of component is strong Degree, which is unable to get, to be made full use of, and the reliability of wood/bamboo structure itself is also impacted.
As the policy of assembled architecture pushes the appearance with national standard " more high level timber buildings technical standards ", wood/bamboo The development potentiality of structural construction at home is increasing.More high level wood/Bamboo structural buildings can not only reduce greenhouse gas emission, It is also able to satisfy demand of the urban compact population to house, is one of Critical policies of city development.But high-rise wood/bamboos more at present The development of structure also receives the restriction of some engineering technology problems, wherein just the rigidity including node is relatively low, power transmission at node Need the problems such as optimizing.
In multi-rise building, wind load and geological process gradually play control action, at this time the weight of structure with height increase Point is horizontal Lateral Resistant System.Low layer wood/Bamboo structural building node generally mostly uses steel plate fitted bolt, pin, either The steels connector such as special connecting piece, but for the horizontal lateral resistant ability demand of more high-rise wood/Bamboo structural buildings, these The anti-side rigidity of node is inadequate.At the same time, for more high-rise wood/bamboo structure frame systems, since bottom adds up gravity Load is big, and band pressure-bearing can occur between beam column, and wood/bamboo beam column, wood/bamboo tower plate are horizontal there is also generating under action of long-term load The problem of line creep.These problems all constrain the development of more high-rise wood/Bamboo structural buildings.
Summary of the invention
The purpose of this patent is to provide a kind of more high-rise wood/bamboo frame structure bean column nodes, it is intended to overcome the prior art In more high-rise wood/bamboo frame structure bean column node rigidity are less than normal, wood/bamboo beam column band is pressurized and the defect of creep, the node are rigid Degree is big, Path of Force Transfer safe and reasonable, takes full advantage of wooden (bamboo) material intensity, improves the stress performance of wooden (bamboo) frame column/beam, The brittle break for avoiding beam column component increases the ductility of structure, and structural elements and node is made to give full play to material property, while With better shock resistance.
The purpose of this patent is achieved through the following technical solutions:
A kind of more high-rise wood/bamboo frame structure bean column nodes, which includes steel box column, by affixed with steel column top and the bottom Pin and bolt upper and lower wood/bamboo frame column is connect with steel column, the U-type groove steel by being fixed in steel column two sides has added fastening Wood/bamboo Vierendeel girder is connect by the stirrup of effect with steel column.
The effect of this patent is:
This patent provides a kind of more high-rise wooden (bamboo) frame structure bean column nodes.The steel column of the node is as core forced section Part can cooperate side channel steel, top surface and the bottom surface aperture leverage of welding to significantly increase the anti-side rigidity and energy dissipation capacity of node. Connection stiffness, which increases, enables nodal moment transmitting increase, and this aspect limits the rotation of the hinged property of node, increases structure entirety Stability;On the other hand effectively lower component span centre maximal bending moment, the beam of same sectional dimension can do bigger span, meet The demand for development of more high-rise wooden (bamboo) structures.The node apparatus of steel guarantees Path of Force Transfer safe and reasonable, channel steel and steel at node Hoop avoids wooden (bamboo) frame beam-ends aperture and the loss of strength of beam end and cracking is caused to influence, and the globality of structure is more preferable.On Portion's load is directly passed to steel column, then passes to lower layer's frame column by it, avoids the additional pressure-bearing of wooden (bamboo) Vierendeel girder, delays Influence of the band creep of wooden (bamboo) Vierendeel girder to node strength is solved;The increase meeting of connection stiffness so that its moment of flexure also increases, Channel steel and stirrup make wooden (bamboo) end of frame girder band be pressurized, and have shared the effect of end moment of flexure, counteract moment of flexure increase Adverse effect takes full advantage of wooden (bamboo) material intensity;Wooden (bamboo) Vierendeel girder of the channel steel support of side, moment of flexure and shearing are directly passed Steel column is passed, then passes to understorey (bamboo) frame column in a manner of vertical load by it, is reduced suffered by wooden (bamboo) frame column The moment of flexure arrived improves the stress performance of wooden (bamboo) frame column.The node apparatus can be entirely prefabricated by factory, site operation assembling Convenience and high-efficiency reduces costs, and reduces working procedure, and node power transmission is rationally clear safe and reliable, and it is more to meet current assembled The growth requirement of high-rise timber structure, this patent provide technical guarantee for the further development of more high-rise wooden (bamboo) structures.
The effect of top pin connection is to connect upper frame column with node, and the axle power of upper frame column is passed to node.Lower part The effect of pin connection is to connect Frame Column Under with node, and the axle power of node is evenly distributed on to the top of Frame Column Under.
The effect of beam fitting is by Vierendeel girder and steel column varied rigid link, and by the moment of flexure of end of frame girder and Shear transfer to beam Fitting.
Upper and lower frame column is connect by upper pin with lower pin by bolt with node, ensure that upper and lower frame column at node Bonding strength;Vertical shear, the moment of flexure of Vierendeel girder are transmitted to beam fitting, and beam fitting bears certain shearing and moment of flexure, structure is avoided to exist Lead to the slump of Vierendeel girder under larger dynamic loading;Vierendeel girder Shear force within the beam end and moment of flexure are transmitted to beam fitting and steel column, reduction pair The effect of frame column.Under normal operating condition, above-mentioned more high-rise wood/bamboo frame structures are rigid joint with bean column node, by beam, Column connects into the frame that can resist lateral load;Under geological process, steel column, beam fitting, upper pin, lower pin pass through itself Nonlinear deformation consumes the energy input of earthquake, and deformation is all concentrated on steel column, avoids wood/bamboo beam column component brittleness broken It is bad, increase the ductility of structure, structural elements and node is made to give full play to material property, while also there is better shock resistance.
As the improvement to this patent, the top surface of steel column is identical as overwood/shape, size of bamboo frame column cross section, steel column Bottom surface is identical as lower wood/shape, size of bamboo frame column cross section, is suitble to wood/bamboo frame column variable cross-section.
As the further improvement to this patent, the pin for being connected in steel column top is protruded into and the overwood of steel column butt joint/bamboo frame column End face, be connected in steel column lower part pin protrude into the lower wood of steel column butt joint/bamboo frame column end face, recessing groove is provided on pin, with The vertical upper and lower wood/bamboo frame column that is threaded through of pin extend into the recessing groove.
As the further improvement to this patent, it is fixed in steel column side for support wood/bamboo Vierendeel girder one end U-type groove steel, Steel plate is connected in channel steel two sides, for wood/bamboo Vierendeel girder to be fastened on the setting steel plate of the stirrup in channel steel.
The groove width of channel steel is equal with frame beam width;External screw thread is set at the both ends of stirrup, opens up hole on the steel plate, the two of stirrup End is each passed through the hole being fixed on the steel plate of channel steel two sides, and is connected with nut with screw thread pair.
Steel column uses intensity, the very high steel of elasticity modulus.The node prefabricated, standardized production convenient for batch production, is able to satisfy The requirement of assembled architecture.
Detailed description of the invention
Fig. 1 is more high-rise wood/bamboo frame structure beam-column node structure schematic diagrames;
Fig. 2 is more high-rise wood/bamboo frame structure beam-column node structure decomposition diagrams;
Fig. 3 is beam column component and node connection schematic diagram.
Specific embodiment
With reference to the accompanying drawing, this patent is described further:
Referring to Fig. 1, Fig. 2, a kind of more high-rise wood/bamboo frame structure bean column nodes shown in Fig. 3, the steel column 1 including box is erected To be welded on 1 top surface of steel column, for being used cooperatively the upper pin 5 that connect upper frame column 7 with steel column 1, vertical weldering with bolt 12 It connects in 1 bottom surface of steel column, for being used cooperatively the lower pin 6 for connecting Frame Column Under 8 with steel column 1 with bolt 12, is fixed in steel column 1 On side, for by the beam fitting 10 of Vierendeel girder 9 and 1 varied rigid link of steel column.
Steel column 1 is closed box-structure, and the top surface of steel column 1 is identical as shape, the size of upper 7 cross section of frame column, steel column 1 Bottom surface is identical as shape, the size of 8 cross section of Frame Column Under.
In the prior art, cross section mostly circle and the rectangle of upper frame column 7, Frame Column Under 8, wherein in the cross section of rectangle In, and it is in the majority with the cross section of square.It, can also not again since the size of upper frame column 7 and Frame Column Under 8 can be identical Together, then steel column 1 can be circular cone structure, be also possible to terrace with edge structure.The top and bottom of steel column 1 are all square in diagram Shape, steel column 1 are square prism structure.
Several pins are respectively welded on the top and bottom of steel column 1, the pin positioned at 1 top surface of steel column is upper pin 5, is located at steel column The pin of 1 bottom surface is lower pin 6.
Upper pin 5 and 6 main structure of lower pin are cylinder, are all provided with recessing groove 501 in upper pin 5 and lower pin 6.It allows Position slot 501 is annular groove, for clamping or part clamping through upper frame column 7, Frame Column Under 8 bolt 12 with by upper frame Column 7, Frame Column Under 8 are connect with node.
In the specific implementation, above-mentioned bolt 12 mostly uses the laying mode of spatial intersecting, therefore, one is located on a steel column 1 directly The recessing groove 501 of upper pin 5 on line also is located on straight line.
Upper pin 5 is evenly arranged on the top surface of steel column 1, and lower pin 6 is evenly arranged on the bottom surface of steel column 1.Upper pin 5 and lower pin 6 Quantity may be the same or different, and in this example, it is identical with the quantity of lower pin 6 (being all four) to choose upper pin 5.
Beam fitting 10 includes horizontally being welded on 1 side of steel column, for the channel steel 2 of support Vierendeel girder 9, is fixed in 2 liang of channel steel The steel plate 3 of side is arranged on steel plate 3, the stirrup 4 for being fastened on Vierendeel girder 9 in channel steel 2.
The groove depth of channel steel 2 is less than the height of Vierendeel girder 9, and in diagram, the groove depth of channel steel 2 is 9 mid-height of Vierendeel girder, channel steel 2 Groove width is equal with 9 width of Vierendeel girder, and steel section is after bending in 90 ° at two that length is 2 outside interplanar distance of channel steel along in the same direction Stirrup 4 is extended to form, external screw thread is set at the both ends of stirrup 4, unthreaded hole 301 is opened up on steel plate 3, the both ends of stirrup 4 are set respectively It sets in the unthreaded hole 301 on 2 two sides steel plate 3 of channel steel, with screw thread pair attaching nut 11 below unthreaded hole 301.
For beauty and the needs for meeting spanner space, 3 bottom surface of steel plate and 2 bottom surface of channel steel are flat.
Reliable to connect, for stirrup 4 generally using being evenly arranged on steel plate 3 with 2-4, stirrup 4 is parallel to the cross section of channel steel 2, this 2 stirrups 4 and each channel steel are selected to cooperate in example.
There are many steel sections that stirrup 4 is made, and more there are commonly wire rods and two kinds of band.
When selecting wire rod, after wire rod bending, external screw thread can be directly set.
When selecting band, after band bending, in the affixed stud (not shown) in the both ends of band.
In this example, the profile that stirrup 4 is made selects wire rod.
Beam fitting 10 is corresponding with the Vierendeel girder 9 for needing to connect, that is, the groove width of the channel steel 2 on a node can be identical, can also With difference, there can be one or more beam fittings 10 on a node;In addition, the space of channel steel 2 and steel column 1 on a node Positional relationship can also there are many, i.e., it is all true relative to the spatial relation of steel column 1 by Vierendeel girder 9 whether both perpendicular It is fixed.In this example, beam fitting 10 is identical two be oppositely arranged, and channel steel 2 and steel column 1 are perpendicular.
When above-mentioned more high-rise wood/bamboo frame structure bean column nodes are connect with beam column component:
Upper pin 5 forms top pin connection through the bolt 12 of upper frame column 7 and upper frame column 7 by 501 clamping of recessing groove;Under Bolt 12 and Frame Column Under 8 of the portion's pin 6 by 501 clamping of recessing groove through Frame Column Under 8 form lower part pin connection.
By in the end implantation channel steel 2 of Vierendeel girder 9, stirrup 4 is installed, Vierendeel girder 9 is locked in channel steel 2 by tightening nut 11.
This node rigidity with higher, intensity and ductility have certain energy dissipation capacity under severe earthquake action.Upper pin connects The effect connect is upper frame column 7 to be connected with node, and the axle power of upper frame column 7 is passed to node.The work of lower part pin connection With being Frame Column Under 8 to be connected with node, and the axle power of node is evenly distributed on to the top of Frame Column Under 8.
The effect of channel steel 2, steel plate 3 and stirrup 4 is connected and fixed Vierendeel girder 9, and the moment of flexure of 9 end of Vierendeel girder and shearing are passed Pass channel steel 2.
Upper frame column 7, Frame Column Under 8 are connect by upper pin 5 with lower pin 6 by bolt with node, ensure that frame column 7, Bonding strength of the Frame Column Under 8 at node;The axle power of upper frame column 7 is transmitted to steel column 1 by top pin connection, passes through lower pin Axle power is transmitted to frame column 8 by connection, passes to basis always, while bolt is positioned at column component both ends, good appearance, construction party Just.
Vertical shear, the moment of flexure of Vierendeel girder pass through stirrup 4 and are transmitted to channel steel 2.Channel steel 2 bears centainly shearing and moment of flexure, reduces stirrup 4 Stress, while avoid structure bear larger dynamic loading lower frame set a roof beam in place 9 slump;9 Shear force within the beam end of Vierendeel girder and moment of flexure pass To channel steel 2 and steel column 1, reduce the effect to frame column.Under normal operating condition, steel column 1, channel steel 2, steel plate 3, upper pin, under Beam, column are connected into the frame that can resist lateral load at rigid joint by portion's pin-shaped;Under geological process, steel column 1, channel steel 2, Steel plate 3, upper pin, lower pin consume the energy input of earthquake by the nonlinear deformation of itself, can be by the change of the overwhelming majority Shape all concentrates on steel column 1, avoids the brittle break of beam column component, increases the ductility of structure, keeps structural elements and node abundant Material property is played, while also there is better shock resistance.
The beneficial effect of this patent is:
1. replacing the pin at origin node with steel column, the anti-side rigidity of node is increased, solves more high-rise wood/bamboo frame structures The problem of node anti-side rigidity deficiency, makes full use of the mechanical property of material.
2. increasing nodal moment transmitting by rigid joint, maximal bending moment in girder span is effectively reduced in the stability of enhancing structure, is increased The span of Datong District's size beam meets the demand for development of more high-rise wood/bamboos.
3. the strength of materials so that beam end band, which is pressurized, shares the effect of the moment of flexure of increase, is made full use of by stirrup and channel steel, It offsets connection stiffness and increases the adverse effect that bring moment of flexure increases.
4. node apparatus can be by prefabrication, convenient for the quality of control node, when construction, only needs assembled in situ, improves construction Efficiency and quality, reduce cost.
5. by way of rationally designing node, bolt quantity, the bearing capacity of control node makes node and component synergism Work guarantees that node Path of Force Transfer safe and reasonable, the globality of structure are also more preferable.

Claims (7)

1. a kind of more high-rise wood/bamboo frame structure bean column node, characterized in that the node includes steel box column, by with steel Upper and lower wood/bamboo frame column is connect by the affixed pin in column top and the bottom and bolt with steel column, by the U-type groove for being fixed in steel column two sides Steel adds the stirrup to play the role of fastening and connect wood/bamboo Vierendeel girder with steel column.
2. more high-rise wood/bamboo frame structure bean column node according to claim 1, characterized in that the top surface of steel column with Overwood/bamboo frame column cross section shape, size are identical, the bottom surface of steel column and lower wood/bamboo frame column cross section shape, size It is identical.
3. more high-rise wood/bamboo frame structure bean column nodes according to claim 1, characterized in that be connected on steel column The pin in portion protrude into the overwood of steel column butt joint/bamboo frame column end face, be connected in steel column lower part pin protrude into under steel column butt joint Wood/bamboo frame column end face, is provided with recessing groove on pin, it is vertical with pin be threaded through upper and lower wood/bamboo frame column extend into it is described Recessing groove.
4. more high-rise wood/bamboo frame structure bean column nodes according to claim 1, characterized in that be used for support wood/bamboo The U-type groove steel of Vierendeel girder one end is fixed in steel column side, and steel plate is connected in channel steel two sides, for wood/bamboo Vierendeel girder to be fastened on On stirrup setting steel plate in channel steel.
5. more high-rise wood/bamboo frame structure bean column node according to claim 4, characterized in that the groove width of channel steel with Frame beam width is equal;External screw thread is set at the both ends of stirrup, opens up hole on the steel plate, the both ends of stirrup, which are each passed through, to be fixed on Hole on the steel plate of channel steel two sides, and connected with nut with screw thread pair.
6. more high-rise wood/bamboo frame structure bean column node according to claim 5, characterized in that steel column using intensity, The very high steel of elasticity modulus.
7. more high-rise wood/bamboo frame structure bean column nodes according to claim 5, characterized in that the node is convenient for work Factoryization is prefabricated, standardized production, is able to satisfy the requirement of assembled architecture.
CN201910143811.XA 2019-02-27 2019-02-27 A kind of more high-rise wood/bamboo frame structure bean column nodes Pending CN109723151A (en)

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Cited By (3)

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Publication number Priority date Publication date Assignee Title
CN110258919A (en) * 2019-06-28 2019-09-20 同济大学建筑设计研究院(集团)有限公司 Bamboo-ice composite structure beam and bamboo-ice composite structure wall and its construction method
CN110565821A (en) * 2019-09-12 2019-12-13 江南大学 Semi-prefabricated section steel concrete column-section steel concrete beam mortise and tenon joint unit
CN113006279A (en) * 2021-03-19 2021-06-22 山东建筑大学 Inorganic adhesive composite bamboo-wood structure middle beam-column connection node, frame structure and method

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CN210151950U (en) * 2019-02-27 2020-03-17 南京林业大学 Beam column joint for multi-story high-rise wood/bamboo frame structure

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WO2022193405A1 (en) * 2021-03-19 2022-09-22 山东建筑大学 Beam-column connection joint in inorganic adhesive composite bamboo-wood structure, and framework structure and method

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