CN112443042A

CN112443042A - Long screw rod strenghthened type rigidity bending resistance veneer wood node

Info

Publication number: CN112443042A
Application number: CN202011433653.0A
Authority: CN
Inventors: 舒展; 宁波; 梁峰; 郭苏夷; 李征; 何敏娟
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-10
Filing date: 2020-12-10
Publication date: 2021-03-05

Abstract

The utility model provides a long screw rod strenghthened type rigidity bending resistance laminwood node, belongs to civil engineering technical field, including laminwood post, steel picture peg post channel, laminwood beam, steel picture peg roof beam channel, steel picture peg, the thick angle steel of putting more energy into, angle steel self-tapping screw, long screw rod, fixed end plate self-tapping screw, laminwood post and laminwood beam insert through the steel picture peg in steel picture peg post channel, the steel picture peg roof beam channel interior through the bolt fastening link to each other, set up the thick angle steel of putting more energy into respectively in the relative both sides of the laminwood post after the assembly and the laminwood beam junction, are equipped with fixed end plate in the opposite side of the thick angle steel of putting more energy into at the laminwood post, fixed end plate, laminwood post, the thick angle steel of putting more energy into link to each other through the long screw rod and the nut that run through the. The invention adopts steel components, the upper side and the lower side of the glued wood beam are provided with the long screws penetrating through the cylindrical surfaces, and a pair of force couples is generated through the tension and compression deformation of the long screws, so that the bending resistance is provided.

Description

Long screw rod strenghthened type rigidity bending resistance veneer wood node

Technical Field

The invention belongs to the technical field of civil engineering, and particularly relates to a long screw reinforced rigid bending-resistant laminated wood node.

Background

With the development of economy and the improvement of requirements on building quality and building sustainable performance, the assembled wood structure has larger application space in the next-stage engineering practice. In the existing wood-substitute structure, a wood space structure is taken as an important structural form, and the fusion of the wood structure and the space structure construction technology is involved. Wherein a beam-column wood frame structure is an important form of fabricated wood structure. The beam-column wood frame structure connection form mainly comprises mortise and tenon connection, key connection, bar planting connection, bolt steel inserting plate connection and the like. The bolt steel inserting plate connection has the advantages of attractive integral effect, high assembly degree and the like; the vertical load of the structure is mainly born by the beam column structure, the horizontal load is mainly born by the support between the beam column frames and the shear wall together, and the stress is reasonable. Fig. 1 schematically shows a method for implementing a conventional bolted steel insert plate node in a wood frame structure.

Research and engineering practice shows that the bending rigidity of the bolted steel inserting plate node in the initial deformation stage is very low, the bending rigidity provided by the bolted steel inserting plate node cannot meet the requirement of structural side resistance, and when a large interlayer displacement angle is generated, the steel inserting plate of the node and a wood hole groove bear pressure to cause wood splitting damage, so that the node cannot provide stable bending resistance. Therefore, the rigidity of the node of the bolt steel inserting plate in the actual structural side-resisting design is often neglected, and meanwhile, components such as a shear wall or a support are required to be added to resist side loads, however, the additional side-resisting components occupy valuable building space and influence the structural use.

In the current mainstream laminated wood beam column system, the laminated wood beam and the laminated wood column are often connected by bolt steel inserting plate joints. Gaps exist between the laminated wood preformed holes and the bolts of the nodes, so that the bending resistance of the nodes is poor, and therefore the nodes often have to be regarded as hinged joints in the side-resistant design. The interlayer displacement angle in the large earthquake process of the wood structure can reach 3%, the beam-column node is a structural weak link, the damage is mainly represented by metal connecting piece yielding and wood plastic deformation, the strength of most materials outside the node area is not fully exerted, the rigidity of the member is greater than that of the node, a damage mode of a weak node and a strong member is formed, particularly the beam-column type wood frame structure, the earthquake resistance of the structure is obviously reduced, and the deformation is shown in figure 2.

Disclosure of Invention

Aiming at the problems, the invention provides a long screw reinforced rigid bending-resistant laminated wood node, which realizes a steel-wood mixed structure, steel components are innovatively adopted at the node, compared with the traditional bolt steel inserting plate node, long screws penetrating through cylindrical surfaces are arranged at the upper side and the lower side of a laminated wood beam, and a pair of force couples are generated through the tensile and compression deformation of the long screws, so that the bending resistance is provided for the bolt steel inserting plate connecting node which is originally regarded as hinged, and the quantity of other side-resistant components in a laminated wood frame structure system is greatly reduced.

The invention adopts the following technical scheme:

the utility model provides a long screw rod strenghthened type rigidity bending resistance laminwood node, includes laminwood post, steel picture peg post channel, laminwood roof beam, steel picture peg roof beam channel, steel picture peg, the thick angle steel of putting more energy into, angle steel self-tapping screw, long screw rod, fixed end plate self-tapping screw, seted up respectively on the joint end of laminwood post and laminwood roof beam with steel picture peg assorted steel picture peg post channel, steel picture peg roof beam channel, seted up the assorted bolt hole on the joint end of steel picture peg and laminwood roof beam, laminwood post and laminwood roof beam insert steel picture peg post channel through the steel picture peg, steel picture peg roof beam channel in the fixed linking of bolt, set up the thick angle steel of putting more energy into respectively in the relative both sides of the laminwood post after the assembly and the laminwood roof beam junction, be equipped with fixed end plate in the opposite side of laminwood post in the thick angle steel of putting more energy into, fixed end plate, lamin, The stiffening thick angle steel is fixedly connected through a long screw and a nut which run through the three, the fixed end plate is fixedly connected with the glued wood column through a fixed end plate self-tapping screw, and the stiffening thick angle steel is fixedly connected with the glued wood beam through an angle steel self-tapping screw.

Furthermore, a space between the glued wood beam and the column is reserved between the assembled glued wood column and the glued wood beam.

Furthermore, an adhesive layer is arranged between the stiffening thick angle steel and the glued wood beam, and a gap is reserved between the stiffening thick angle steel and the glued wood column.

Furthermore, an adhesive layer is arranged between the fixed end plate and the glued wood column.

Furthermore, the long screw is provided with threads, the fixed end plate is provided with a fixed end plate long screw hole matched with the threads of the long screw, the long screw penetrates through the fixed end plate, the glued wood column and the stiffening thick angle steel, the inner side and the outer side of the stiffening thick angle steel are respectively provided with an inner side nut and an outer side nut, and the long screw is screwed and fixed.

Furthermore, the outer side of the stiffening thick angle steel is provided with an oblique 45-degree tapping screw hole, the inner side of the stiffening thick angle steel is provided with a vertical screw hole, the tapping screw is combined with the wood beam along the vertical direction, and the stiffening plate at the corner of the stiffening thick angle steel is provided with an angle steel round hole.

Furthermore, the stiffening plate of the stiffening thick angle steel is in a fan shape, a triangular shape or a convex surface shape.

The invention relates to a long screw reinforced slotted steel insert plate bolt connection suitable for a glued wood frame structure. The composite beam comprises a laminated wood column, a laminated wood beam, a bolt steel inserting plate, a column bolt group, a beam bolt group, a column nut group, a beam nut group, a long screw, a stiffening thick angle steel, a fixed end plate, a corresponding angle steel self-tapping screw group and a fixed end plate self-tapping screw group. The long screw rods penetrate through the laminated wood columns, are arranged on the upper side and the lower side of the laminated wood beam, and are anchored with the fixed end plates through the stiffening thick angle steel. The stiffening thick angle steel is fixed on the glued wood beam through the angle steel self-tapping screw group.

The connection form is formed by connecting prefabricated glued wood components through steel inserting plates, column channels are formed in the glued wood columns for the steel inserting plates, and column bolt pore channels are reserved for column bolt groups. The steel inserting plate is provided with a steel inserting plate column side bolt hole channel, the column end part of the steel inserting plate is inserted into the column channel during installation, and the glued wood column is anchored by the column bolt group and the corresponding column nut group through the reserved bolt hole channel after alignment. The beam end part of the steel inserting plate is connected with the glued wood beam, and a beam channel is formed in the glued wood beam and a beam bolt pore passage is reserved. And the beam end part of the steel inserting plate is also provided with a beam side bolt hole of the steel inserting plate, the beam end part of the steel inserting plate is inserted into the beam channel during installation, and the glued wood beam is anchored by the beam bolt group and the corresponding beam nut group through the reserved beam bolt hole and the beam side bolt hole of the steel inserting plate after alignment. On the basis of the above configuration, the fixed end plate is fixed to the laminated wood column by the fixed end plate tapping screw group. And inserting the long screw rod into the fixed end plate long screw rod hole on the fixed end plate and the glued wood column long screw rod hole on the glued wood column, and anchoring the long screw rod and the fixed end plate. And then the inner nut, the angle steel long screw hole and the outer nut are sleeved on the long screw in sequence. And then moving the stiffening thick angle steel to a position with a certain distance from the cylindrical surface, fixing the stiffening thick angle steel on the glued wood beam through the angle steel self-tapping screw group, screwing the nuts in opposite directions, and anchoring the long screw rods on two sides of the angle steel long screw rod hole so that the stiffening thick angle steel can stably drive the screw rods to deform.

In the invention, a certain gap is required to be left between the glued wood beam and the column, as shown in fig. 6. Avoid the extrusion destruction between glued wood beam, post, ensure that node rotation center is on the neutral axis of roof beam. Meanwhile, the contact secondary stress of the wood caused by factors such as water absorption and expansion is avoided.

In the invention, the purpose of stiffening the thick angle steel is not energy consumption, but driving the deformation of the screw. The stiffening thick angle steel is used as a component for driving the deformation of the screw rod, a conservative design needs to be provided, and the stiffening plate is thickened and selected for use to reinforce the stiffening thick angle steel in the example. Meanwhile, a certain gap is reserved between the stiffening thick angle steel and the laminated wood column, and a certain space is reserved for the deformation of the screw, as shown in fig. 6; the stiffening thick angle steel is connected with the glued wood beam through angle steel self-tapping screws, and an adhesive layer can be selected to ensure that the anchoring effect is stronger, as shown in figure 7; an 1/4 round angle steel round hole is reserved at the bottom of the angle steel stiffening plate, so that welding is facilitated, and if performance can be guaranteed, the round steel hole is not needed, as shown in fig. 9.

In the invention, a pair of force couples is generated through the tension-compression deformation of the long screw, so that effective bending resistance is provided for the bolted steel inserting plate connecting joint which is originally regarded as hinged, the stress mechanism of a weak joint and a strong component in a glued wood frame structure system is effectively improved, and two ends of the long screw are connected with the angle steel and the fixed end plate. There are many types of connections and different types of connections are protected. The connection form that the example provided is that the long screw rod is connected with the downthehole screw thread of long screw rod on the fixed end plate, chooses for use one end nut to have the screw thread, and the other end also has the screw thread, and the screw rod that the middle part is smooth agrees with the screw thread on the long screw rod nut and the inboard screw thread of fixed end plate, sees figure 8. The internal thread of the fixed end plate can be replaced by an internal nut and an external nut, and the internal nut needs to be provided with a countersunk hole on the glued wood column. In addition, the design requires thickening the thread segments to avoid breaking at the threads of the long screw. In order to enable the stiffening thick angle steel to bidirectionally drive the tensile compression deformation of the screw rod, the long screw rod and the angle steel can be connected by nuts at two sides.

According to the invention, the angle steel is fixed on the wood beam by the angle steel tapping screw group, the tapping screws can increase the convenience of construction, and the tapping screws do not need to reserve holes, so that the tangential force can be rapidly transmitted compared with a stud connecting angle steel penetrating through the beam surface. The self-tapping screw should meet the requirements of shear and pullout resistance, and in the example shown the self-tapping screw is used in combination with a wood beam being driven in the vertical direction and in the 45 ° direction, see fig. 9. In addition, the stiffening plate at the stiffening thick angle steel can be fan-shaped, triangular, convex and the like, as shown in fig. 9.

In the invention, the fixed end plate is connected with the glued wood column through the fixed end plate self-tapping screw group, a layer of adhesive layer can be added between the fixed end plate and the glued wood column, and the performance of the fixed end plate is further improved in an adhesion mode, so that the fixed end plate can bear force in two directions, as shown in figure 7; compared with the connection mode that the stud penetrates through the cylindrical surface, the bolt head protrudes out of the fixed end plate, in the glued wood frame, the fixed end plates are not convenient to be arranged on two sides of the glued wood column, and the self-tapping screw cannot influence the arrangement of the long screw rod in the vertical direction of the middle node, as shown in figure 12.

In the invention, the size of the laminated wood member, the size of the steel insert plate, the size of the stiffening thick angle steel, the size of the self-tapping screw, the size of the bolt, the size, the number, the arrangement and the like of the bolt hole channel are obtained by structural calculation. Wherein the type of the laminated wood, the strength of the bolt and the like meet the regulations of the current relevant standards of China.

Compared with the prior art, the invention has the following advantages:

(1) the screws arranged on the upper side and the lower side of the laminated wood beam can provide a pair of effective bending moments, the original hinged joint is enhanced into a rigid bending-resistant joint, the lateral resistance is provided for the structure at the first time, the rigidity of the joint is higher than that of a component, the damage of the laminated wood component in the joint is reduced, the deformation is shown in figure 3, the overall anti-seismic performance of the laminated wood structure can be improved, the steel-wood mixed structure does not use any beam, column and inclined strut component for the first time, and the energy-consuming capacity and the ductility of the joint are good.

(2) The invention realizes the steel-wood mixing on the node layer of the glued wood beam column for the first time, and self-tapping screws, high-strength bolts, screws and structures (400, 420 and the like in figures 4 and 5) which are innovatively proposed are used for component selection; for material selection, laminated wood, various metal materials, adhesives and the like are used. Wherein the steel member is only arranged at the connecting node of the beam column, and the rest part of the system is not provided with the metal member;

(3) the invention effectively lengthens the bending moment arm of a screw rod through angle steel, ensures that the node is a rigid bending-resistant node, and effectively reduces and avoids the number of anti-side members of other structures;

(4) compared with the mode that the stud penetrates through the surface of the beam to connect the upper stiffening thick angle steel and the lower stiffening thick angle steel, the connecting mode that the angle steel is fixed on the glued wood beam by the tapping screw can quickly transmit shearing force, and the tapping screw taps into wood and is easy to operate, so that the convenience of construction is improved;

(5) compare with on the thick angle steel anchor of putting more energy into is compared on the veneer post through self-tapping screw, plastic deformation can be concentrated to the connected form of long screw, can not cause the plastic damage that the veneer cylinder is difficult to the restoration because of self-tapping screw's extraction, effectively reduces repair time and cost, and simultaneously, the design of two nuts can ensure that long screw is easily changed after destroying.

Drawings

FIG. 1 is a glued wood frame structure expanded from a single wood frame;

FIG. 2 is a "strong member weak node" failure mode;

FIG. 3 illustrates a "strong node weak member" failure mode;

FIG. 4 is an anatomical elevation view of a balsa node;

FIG. 5 is a posterior view of a veneer lumber joint anatomy;

FIG. 6 is a schematic view of the installation of a stiffened thick angle iron;

FIG. 7 is a schematic view of a stiffened thick angle steel and a self-tapping screw hole;

FIG. 8 is a schematic view of the connection of the fixed end plate and the long screw;

FIG. 9 is a schematic view of a stiffened thick angle steel and a self-tapping screw;

FIG. 10 is a schematic view of a laminated wood beam-column joint;

FIG. 11 is a side view of a veneer lumber beam column node;

FIG. 12 is a perspective view of a glulam beam column joint;

FIG. 13 is a perspective side view of a laminated wood beam-column joint;

FIG. 14 is a schematic view of a bi-directional long screw installation;

FIG. 15 is a schematic view of a mid-node beam column installation;

FIG. 16 is a perspective view of a mid-node beam column installation.

The components in the figure: 100 is a laminated wood column, 101 is a steel insert column channel, 102 is a stud hole channel, 103 is a stud group, 104 is a stud nut group, 200 is a laminated wood beam, 201 is a steel insert beam channel, 202 is a beam bolt hole channel, 203 is a beam bolt group, 204 is a beam nut group, 300 is a steel insert, 301 is a steel insert column side bolt hole, 302 is a steel insert beam side bolt hole channel, 303 is a steel insert column end part, 304 is a steel insert beam end part, 305 is a gap, 400 is a stiffened thick angle steel, 401 is an angle steel self-tapping screw, 402 is an angle steel long screw hole channel, 403 is an inside nut, 404 is an outside nut, 405 is an angle steel self-tapping screw hole channel, 407 is an angle steel round hole, 410 is a long screw, 411 is a laminated wood column long screw hole channel, 420 is a fixed end plate, 421 is a fixed end plate self-tapping screw, 422 is a fixed end plate long screw hole, 501 is a laminated wood beam, and a column pitch.

Detailed Description

The invention is further explained below by means of figures and examples.

The invention provides a long screw rod reinforced steel flashboard bolt connection suitable for a glued wood frame structure. The beam-column joint in the laminated wood frame structure system comprises laminated wood beam-

column components

100 and 200 formed by lapping, a steel inserting plate 300, a column bolt group 103, a beam bolt group 203, a column nut group 104 corresponding to the beam bolt group, a beam nut group 204, stiffening thick angle steel 400, a long screw 410, a fixed end plate 420, an angle steel self-tapping screw 401 corresponding to the stiffening thick angle steel and the fixed end plate, and a fixed end plate self-tapping screw 421.

The connection middle structure is in a bolt steel insert plate form, and specifically comprises prefabricated glued wood

beam column components

100 and 200 and a steel insert plate 300, wherein a column channel 101 is reserved on the glued wood column 100 for the steel insert plate 300, and a column bolt hole channel 102 is reserved for a column bolt group 103. The steel insert plate 300 is provided with steel insert plate

bolt hole channels

301, 302, the column end part 303 of the steel insert plate is inserted into the column channel 101, and the steel insert plate 300 is anchored by the column bolt group 103 and the corresponding column nut group 104 through the reserved column bolt hole channel 102 and the steel insert plate column side bolt hole channel 301. The beam end part 304 of the steel inserting plate 300 is connected with the glued wood beam 200, and the glued wood beam 200 is provided with a beam channel 201 and a beam bolt hole 202 in a reserved mode. The beam end part 304 of the steel insert plate is inserted into the channel 201 of the laminated wood beam, and the laminated wood beam 200 and the steel insert plate 300 are anchored by the beam bolt group 203 and the corresponding beam nut group 204 through the reserved beam bolt hole 202 and the steel insert plate beam side bolt hole 302.

The novel node is additionally provided with a long screw 410, a stiffening thick angle steel 400 and a fixed end plate 420 on the basis of the structure. The fixed end plate 420 is anchored to the laminated wood column 100 by a fixed end plate self-tapping screw 421. The long screw 410 is anchored with the fixed end plate 420 and the stiffening thick angle steel 400 into a whole through the fixed end plate long screw hole 422 and the glued wood column long screw hole 411 reserved on the glued wood column 100. The stiffened thick angle steel is then secured to the laminated wood beam 200 by the angle self-tapping screw group 401.

A small amount of space 501 between the glued wood beams and the glued

wood columns

100 and 200 is required to be reserved, so that the extrusion damage between the glued wood beams and the glued wood columns is avoided; meanwhile, the contact secondary stress of the wood caused by factors such as water absorption and expansion is avoided.

The 400 meshes of stiffened thick angle steel does not consume energy, but drives the deformation of a metal screw, and is characterized in that: the stiffened thick angle steel is connected with the laminated wood column 100 through a long screw 410; the angle steel self-tapping screw group 401 is connected with the glued wood beam 200, and an adhesive layer can be selectively added between the stiffening thick angle steel 400 and the glued wood beam 200 to enhance the shearing resistance; a certain gap 305 is left between the stiffening thick angle steel 400 and the laminated wood column 100, so that space is provided for deformation of the screw.

The fixed end plate 420 is a bi-directional force-bearing member, which is connected to the glued wood column 100 by the self-tapping screw group 421 of the fixed end plate, and is anchored to the long screw 410, so that the long screw bears the pressure by the wood column when being pulled; when the long screw 410 is pressed, the anti-pulling force of the self-tapping screw group 421 of the fixed end plate bears the thrust acting on the fixed end plate, and an adhesive layer can be selected between the fixed end plate 420 and the laminated wood column 100, so that the anti-pulling performance of the fixed end plate and the laminated wood column is further enhanced.

The two ends of the long screw 410 are anchored with the fixed end plate 420 and the stiffening thick angle steel 400 respectively, and the middle part of the long screw penetrates through the laminated wood column 100, so that when the structure is stressed bidirectionally, the stiffening thick angle steel can drive the screw to deform in a pulling and pressing way bidirectionally, a pair of force couples is provided, the joints of the laminated wood beam column become rigid bending-resistant joints, and the number of other anti-side components in a laminated wood frame structure system is greatly reduced.

Example 1

The invention relates to a long screw reinforced rigid bending-resistant laminated wood node, the anatomical schematic diagram of which is shown in figures 4 and 5, and the long screw reinforced rigid bending-resistant laminated wood node mainly comprises three main parts: a laminated wood column 100 with a steel flashboard column channel 101 in the middle, a laminated wood beam 200 with a steel flashboard beam channel 201 at the end, and a steel flashboard 300 for connecting the two

laminated wood members

100, 200; the structural members for reinforcing the node include a stiffening thick angle steel 400, a long screw 410, a fixing end plate 420, and a bolt group, a nut group, and a tapping screw group for anchoring the member.

The specific implementation process is divided into four parts:

the first part realizes the connection related to the

laminated wood element

100, 200 in fig. 4, and the specific implementation is as follows: the middle of the plane of the laminated wood column 100 is provided with a column channel 101 for facilitating the insertion of the steel inserting plate 300. Meanwhile, the side surface of the laminated wood column 100 is reserved with a column bolt hole 102 for the column bolt group 103, and a laminated wood column long screw hole 411 is reserved above and below the groove. A beam channel 201 is formed in the plane of the tail end of the glued wood beam 200, and beam bolt holes (202) are reserved on the side face of the glued wood beam (200) for a beam bolt group (203).

The second part realizes the processing of the steel insert plate 300 in fig. 4, and the specific implementation mode is as follows: the steel insert plate (300) is provided with bolt hole channels, and the number and the spacing of the hole channels at the two ends of the steel insert plate respectively correspond to the

hole channels

102 and 202 on the glued

wood members

100 and 200.

The third part realizes the processing of the stiffened thick angle steel 400 in fig. 7, and the specific implementation mode is as follows: the stiffening thick angle 400 is provided with an angle long screw hole 402 and an angle self-tapping screw hole 405.

The fourth part realizes the processing of the fixed end plate in fig. 8, and the specific implementation mode is as follows: a fixed end plate tapping screw hole and a fixed end plate long screw hole 422 are left on the fixed end plate 420, and threads are engraved on the inner side of the fixed end plate long screw hole 422.

The specific connection mode of the nodes is as follows:

the steel insert plate 300 is inserted into the stud channel 101 with the stud holes 102 being flush with the steel insert plate stud side bolt holes 301, and the stud groups 103 are inserted through the stud holes 102 and the steel insert plate stud side bolt holes 301 and anchored by the stud nut groups 104 to fix the laminated wood stud 100. The beam channel 201 of the laminated wood beam 200 on the other side is connected with the steel flashboard beam side bolt hole 304 part of the steel flashboard 300 in the same way, and the beam bolt group 203 penetrates through the beam bolt hole channel 202 and the steel flashboard beam side bolt hole channel 302 and is anchored through the beam nut group 204. Thus, the two sides of the laminated wood are overlapped into a complete node by the steel flashboard components and the anchoring components. The fixed end plate long screw hole 422 of the fixed end plate 420 is then aligned with the bakelite column long screw hole 411 of the bakelite column 100, and the fixed end plate 420 is anchored to the bakelite column 100 by the fixed end plate self-tapping screw 421. The long screw 410 is threaded through the long screw hole of the fixed end plate and the glued wood column, and the long screw 410 is screwed down, so that the thread on the long screw 410 is fully matched with the thread on the inner side of the long screw hole 422 of the fixed end plate. And then the inner nut 403, the angle steel long screw hole 402 and the outer nut 404 are sleeved on the threads of the exposed long screw in sequence. The stiffening thick angle steel is adjusted to a designated position, and the stiffening thick angle steel is fixed by tapping a glued wood beam along a designated direction by using angle steel tapping screws 401 along angle steel tapping screw holes 405 reserved on the stiffening thick angle steel in advance. Finally, the inner nut 403 and the outer nut 404 are screwed oppositely, and the screw rods are anchored on two sides of the stiffening thick angle steel, so that force transmission delay caused by loosening is avoided. The schematic diagrams of the completion of the node lap joint in the case of fig. 4 and 5 are shown in fig. 10 and 12.

In the invention, the diameter of the long screw rod hole of the glued wood column reserved on the glued wood column is not too large, and the effect of restraining the out-of-plane deformation of the screw rod can be achieved, so that the out-of-plane instability of the long screw rod can not occur when the long screw rod bears pressure.

In the present invention, the length of the

bolt groups

103 and 203 exposed from the

laminated wood member

100 and 200 to provide the anchoring space for the

nuts

104 and 204 is preferably, but not limited to, 0.5 to 1 times the bolt diameter to maintain the aesthetic appearance of the structure.

The connection is carried out by bolts, and during the production process of the laminated wood and the steel inserting plate, the size of the reserved hole is considered to be slightly larger than the diameter of the bolt but not completely consistent so as to facilitate installation. In order to ensure the mechanical property, the size of the holes is controlled within 1mm of the bolt, and if larger holes are left, the holes are closed by pouring high-strength glue.

Wood frame structures typically include multiple groups of glued wood beam-column joints. The corner nodes on two sides are connected with two beams, the side nodes are connected with three beams, and the middle node is connected with four beams. When the node has a multi-beam intersection condition, long screws in the vertical direction can be placed in a staggered mode, and the specific structure is shown in fig. 14; the arrangement of the middle node is shown in fig. 15 and fig. 16.

Claims

1. The utility model provides a long screw rod strenghthened type rigidity bending resistance veneer wood node which characterized in that: comprises a laminated wood column (100), a steel inserting plate column channel (101), a laminated wood beam (200), a steel inserting plate beam channel (201), a steel inserting plate (300), stiffening thick angle steel (400), angle steel self-tapping screws (401), a long screw (410), a fixed end plate (420) and fixed end plate self-tapping screws (421), wherein the connecting end of the laminated wood column (100) and the laminated wood beam (200) is respectively provided with the steel inserting plate column channel (101) and the steel inserting plate beam channel (201) which are matched with a steel inserting plate (300), the connecting end of the steel inserting plate column (300), the laminated wood column (100) and the laminated wood beam (200) is provided with matched bolt holes, the laminated wood column (100) and the laminated wood beam (200) are inserted into the steel inserting plate column channel (101) and the steel inserting plate beam channel (201) through the steel inserting plate (300) and are fixedly connected through bolts, and the stiffening thick angle steel (400) is respectively arranged at the opposite two sides of the connecting part of the laminated wood column (100) and the laminated, the laminated wood column (100) is provided with a fixed end plate (420) on the opposite side of a stiffening thick angle steel (400), the fixed end plate (420), the laminated wood column (100) and the stiffening thick angle steel (400) are fixedly connected through a long screw (410) and a nut which penetrate through the laminated wood column, the fixed end plate (420) is fixedly connected with the laminated wood column (100) through a fixed end plate self-tapping screw (421), and the stiffening thick angle steel (400) is fixedly connected with a laminated wood beam (200) through an angle steel self-tapping screw (401).

2. The long screw reinforced rigid moment plywood joint of claim 1, wherein: and a space between the glued wood beam and the column is reserved between the glued wood column (100) and the glued wood beam (200) after assembly.

3. The long screw reinforced rigid moment plywood joint of claim 1, wherein: an adhesive layer is arranged between the stiffening thick angle steel (400) and the glued wood beam (200), and a gap is reserved between the stiffening thick angle steel (400) and the glued wood column (100).

4. The long screw reinforced rigid moment plywood joint of claim 1, wherein: an adhesive layer is arranged between the fixed end plate (420) and the glued wood column (100).

5. The long screw reinforced rigid moment plywood joint of claim 1, wherein: the long screw (410) is provided with threads, the fixed end plate (420) is provided with a fixed end plate long screw hole (422) matched with the threads of the long screw (410), the long screw (410) penetrates through the fixed end plate (420), the glued wood column (100) and the stiffening thick angle steel (400), the inner side nut (403) and the outer side nut (404) are respectively arranged on the inner side and the outer side of the stiffening thick angle steel (400), and the long screw (410) is screwed and fixed.

6. The long screw reinforced rigid moment plywood joint of claim 1, wherein: the outside of the thick angle steel of putting more energy (400) is equipped with the 45 self-tapping screw holes of slant, and its inboard is equipped with vertical screw hole, and the self-tapping screw is for attacking into the wooden beam along vertical direction and attack into the wooden beam along the direction and combine together, and the thick angle steel of putting more energy (400) bight stiffening plate is equipped with angle steel round hole (407).

7. The long screw reinforced rigid moment plywood joint of claim 1, wherein: the stiffening plate of the stiffening thick angle steel (400) is in a fan shape, a triangle shape or a convex surface shape.