CN110965699A - Elastic anti-seismic device of wood beam and installation method thereof - Google Patents
Elastic anti-seismic device of wood beam and installation method thereof Download PDFInfo
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- 229910000851 Alloy steel Inorganic materials 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 4
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- 238000000576 coating method Methods 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 3
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 3
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 3
- 239000011425 bamboo Substances 0.000 claims description 3
- 239000011120 plywood Substances 0.000 claims description 3
- 244000082204 Phyllostachys viridis Species 0.000 claims 1
- 230000008439 repair process Effects 0.000 abstract description 6
- 238000013016 damping Methods 0.000 abstract description 5
- 230000000149 penetrating effect Effects 0.000 abstract description 2
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- 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
- E04C3/12—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of wood, e.g. with reinforcements, with tensioning members
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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
- E04B1/62—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
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- 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
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Abstract
The invention discloses an elastic anti-seismic device for a wood beam, which comprises a plurality of layers of wood boards (2) arranged below the wood beam (1), wherein at least two U-shaped clamps (3) are used for tightly fixing the wood beam (1) and the wood boards (2), an opening (4) of each U-shaped clamp (3) faces downwards, split bolt holes are formed in the positions of the openings (4), and two ends of each split bolt (5) are fixed by nuts (6) after penetrating through the split bolt holes; the upper end face of the U-shaped clamp (3) is provided with at least two through holes, the corresponding positions of the wood beam (1) and the through holes are provided with positioning holes, and the positioning bolts (7) are in clearance fit with the through holes and the positioning holes correspondingly. The invention also discloses an installation method of the elastic anti-seismic device of the wood beam. The invention can carry out environment-friendly efficient repair on the wooden beam which has no damage, no crack, small bending deformation or is about to break and accords with the self-damping type of the wooden house.
Description
Technical Field
The invention relates to an elastic anti-seismic device of a wood beam and an installation method thereof, belonging to the technical field of environment-friendly restoration of wood buildings.
Background
The wooden house enjoys the reputation of a house capable of breathing, and because the wooden house can automatically adjust the humidity, the wooden house can automatically absorb moisture when the humidity is high, and can release moisture from cells of the wooden house when the humidity is dry, thereby playing a role in natural adjustment. The wood structure house is a healthy house which integrates the advantages of environmental protection, health, comfortable living, safety, close to nature, long service life, unique design style and the like.
The use of wooden houses by human beings has a history of thousands of years worldwide, a large number of ancient buildings (such as pavilions, tables, buildings, lofts, pavilions, towers, elysees, houses and bucket arches) in China also adopt wooden structures, a large number of wooden houses are also generated in modern times, and the existing wooden houses further ensure the stability of the structures by using wooden beams and roofs. Particularly, the timber beams are structural beams of timber structure houses and are used for main supporting of roofs, the timber beams have prominent effects in the timber houses, but because the timber beams are influenced by long-term changes of environmental temperature and humidity and the defects of woods, if the timber beams crack or are about to crack, the bearing capacity of the timber beams is reduced, the safety of the whole timber structure house is further influenced, and therefore the timber beams are very necessary to be reinforced.
The existing wood beam reinforcing mode comprises iron hoop reinforcement, wherein iron hoop reinforcement is carried out on the surface of the wood beam to repair the wood beam, the method has a certain effect on the repair of the wood beam, the further cracking of the wood beam can be avoided, but the iron hoop cannot offset or absorb the load of instant impact on the wood beam during the reinforcement, and the bending deformation phenomenon of the wood beam caused by periodic fatigue damage of the wood beam cannot be recovered, namely the iron hoop cannot enable the wood beam to generate the effects of shock absorption, bending reduction, shock resistance, bending resistance and the recovery of the original state of the wood beam when being impacted by external force. And the iron hoop is easy to rust, and the reinforcing effect after the rust corrosion can be greatly weakened.
Disclosure of Invention
The invention provides an elastic anti-seismic device for a wood beam, which can offset and absorb part of energy through the elastic force generated by the deformation of laminates and the friction force between the laminates so as to prolong the yield time of the failure process of the device on the one hand, and the bending deformation phenomenon of the wood beam caused by instant impact load and periodic fatigue failure; on the other hand, the elastic deformation capacity of the wood beam is improved, and when the breaking load is not enough to enable the wood beam to reach the plastic yield stage, the device can enable the wood beam to restore the original state.
Meanwhile, the installation method of the elastic anti-seismic device of the wooden beam is strong in feasibility, and can carry out environment-friendly efficient repair on the wooden beam which is free of damage and cracks, or has small bending deformation or is about to break, and the self-damping type high-efficiency repair of the wooden beam is met.
Meanwhile, the invention also provides an elastic anti-seismic device of the wood beam with another structure and an installation method thereof, and the technical problems can be solved.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
the elastic anti-seismic device for the wood beam comprises a plurality of layers of wood boards arranged below the wood beam, at least two U-shaped hoops are used for tightly fixing the wood beam and the wood boards, the openings of the U-shaped hoops face downwards, split bolt holes are formed in the openings, and after the split bolts penetrate through the split bolt holes, both ends of the split bolts are fixed by nuts; the up end of U type clamp is provided with two at least through-holes, the wooden beam with the corresponding position department of through-hole is provided with the locating hole, and the pilot pin clearance fit formula is located correspondingly the through-hole with in the locating hole, the up end of U type clamp with be provided with the wedge stopper between the up end of wooden beam.
The bottom surface and the inclined plane of the wedge-shaped plug are equidistantly distributed with a plurality of strip-shaped tooth sockets, and the tooth sockets on the strip-shaped tooth sockets are in the same direction as the thickness increasing direction of the wedge-shaped plug.
The width part of the two sides of the split bolt, which exceeds the wood board, is provided with threads, the middle part of the split bolt is not provided with threads, and the surface of the split bolt is galvanized.
The clearance amount of the clearance fit is 0.1-0.2 mm.
The wood board comprises one or more of a solid wood sawn board, a multilayer plywood and a bamboo integrated board, and the width of the wood board is consistent with that of the wood beam; the wood beam comprises solid wood sawn timber, laminated veneer lumber, parallel wood chip veneer lumber, rotary cut board veneer lumber, laminated wood or directional planed wood.
The U-shaped clamp, the positioning bolt and the wedge-shaped plug are all made of steel.
The installation method of the elastic anti-seismic device of the wood beam comprises the following steps:
s01, measuring the length, width and height of the wood beam;
s02, processing the wood board, wherein the surface of the wood board is required to be flat and consistent in thickness, coating the surface of the wood board with tung oil for at least three times, and airing until the tung oil is completely absorbed by the wood board;
s03, prefabricating the through hole and the split bolt hole in the U-shaped clamp, wherein the hole positions of the through hole and the split bolt hole are both located in the middle position of the surface width of the U-shaped clamp;
s04, mounting the U-shaped hoop on the wood beam, firstly placing the U-shaped hoop on a preset point of the wood beam, positioning the hole position of the prefabricated positioning hole on the upper end surface of the wood beam through the through hole, marking the mark, then drilling the hole, wherein the hole depth of the positioning hole is 30-35 mm, then placing the U-shaped hoop to align the through hole and the positioning hole, and then placing the positioning bolt into the corresponding through hole and the positioning hole in a clearance fit manner;
s05, transversely aligning the wood boards of all layers, inserting the wood boards into the inner side of the U-shaped hoop from bottom to top until the wood boards are tightly attached to the lower surface of the wood beam, and then binding the wood boards and the wood beam together by using ropes, wherein the wood boards and the wood beam are required to be tightly attached without gaps;
s06, slowly inserting the split bolt into the split bolt hole, and locking two sides by the nut;
and S07, symmetrically knocking in the prefabricated wedge-shaped plugs at the joint of the U-shaped hoop and the upper end surface of the wood beam, so that the ropes are removed after the split bolts are tightly jointed with the bottom wood board, and the installation is completed.
The invention also discloses another structure of the elastic anti-seismic device of the wood beam, which comprises the following specific contents: elasticity antidetonation device of wooden beam, including setting up in a plurality of layers of plank of wooden beam below, U type clamp is closely fixed wooden beam and plank, opening (4) of U type clamp are down, the lower extreme of U type clamp towards the plank middle part is extended and is formed the stull, two all be provided with the through-hole on the stull, the plank with the corresponding position department of through-hole is provided with the locating hole, and the pilot pin interference fit formula is located correspondingly the through-hole with in the locating hole, the up end cover of U type clamp has the roller.
The upper end face of the U-shaped clamp is cylindrical, and the gap between the roller and the U-shaped clamp is 0.05-0.1 mm; the roller is made of high-strength alloy steel; the interference magnitude of the interference fit is 0.1-0.2 mm; the hole depth of the positioning hole is 30-35 mm.
The installation method of the elastic anti-seismic device of the wood beam comprises the following steps:
s01, measuring the length, width and height of the wood beam;
s02, processing the wood board, wherein the surface of the wood board is required to be flat and consistent in thickness, coating the surface of the wood board with tung oil for at least three times, and airing until the tung oil is completely absorbed by the wood board;
s03, prefabricating the roller on the U-shaped hoop, and sleeving the roller on the upper end face of the U-shaped hoop; prefabricating the through hole on the U-shaped clamp, wherein the hole of the through hole is positioned in the middle position of the surface width of the U-shaped clamp;
s04, mounting the U-shaped clamp on the wood beam, firstly placing the U-shaped clamp on a preset point of the wood beam and horizontally bending the cross brace, sequentially inserting all layers of the wood boards into the inner side of the U-shaped clamp until the wood boards are tightly attached to the lower surface of the wood beam, and then binding the wood boards and the wood beam together by using ropes, wherein the wood boards and the wood beam are required to be tightly attached without gaps;
s05, positioning hole positions of the prefabricated positioning holes on the lower end face of the wood board through the through holes, marking marks, drilling holes, wherein the hole depth of the positioning holes is 30-35 mm, placing the U-shaped clamps to enable the through holes to be aligned with the positioning holes, and then placing the positioning bolts into the corresponding through holes and the corresponding positioning holes in an interference fit mode; finally, the rope is released, and the installation is completed.
The invention has the following beneficial effects:
(1) the invention does not adopt a gluing mode, the frictional force is replaced by the frictional force between the laminated plates, and for the bending deformation phenomenon of the wood beam caused by instant impact load and periodic fatigue damage, the invention can offset and absorb larger energy through the elastic force generated by the deformation of the laminated plates and the frictional force between the laminated plates, and simultaneously can generate certain deformation without damage, thereby prolonging the yield time of the damage process and leading the structure of the wood beam to be in an elastic state under the small shock; in the middle earthquake, the structure can be damaged, but can be continuously used after being repaired; in case of a major earthquake, the structure may be damaged, but not collapsed or endangered in life.
(2) The U-shaped clamp can be used as an independent component, is flexible to mount and convenient to dismount, and can be used for later-stage compensation and reinforcement.
(3) The U-shaped clamp and other components are made of steel, so that the U-shaped clamp cannot be rusted, and can always keep a good reinforcing effect.
(4) The wood boards are arranged in multiple layers, the multiple layers of wood boards positioned in the middle can be independently stressed and deformed, when the wood beam is subjected to instant impact load, the wood boards which can freely move in each layer deform and stretch layer by layer, the stretching motion brings the motion friction force between the wood boards, and when the instant impact load is increased, the friction force generated by the stretching motion between the wood boards is increased simultaneously, so that part of the instant impact load is converted into the friction force between the wood boards by the wood boards in each layer, thereby reducing the load impact on the wood beam.
(5) Meanwhile, the U-shaped clamps are limited by the positioning bolts, so that the U-shaped clamps are prevented from gradually displacing towards the middle in the deformation process of the wood beam and the wood board, the acting force of the two adjacent U-shaped clamps is too close after the U-shaped clamps displace, the bending distance of the wood beam is reduced, the shearing force is increased, and the self-damping efficient repair of the wood beam cannot be realized.
(6) According to the invention, during drilling, the positioning hole is a round hole instead of a threaded hole formed by tearing, the round hole is uniformly stressed, and particularly, the positioning bolt only needs to be placed in the positioning hole in clearance fit, so that the positioning bolt is convenient to maintain and conforms to a self-adjusting mechanism of the wood beam.
(6) According to the invention, the elastic deformation of each layer plate can improve the elastic deformation capacity of the wood beam, and when the breaking load is not enough to enable the wood beam to reach the plastic yield stage, the device can enable the wood beam to recover the original state, so that the invention has the effects of damping, reducing bending, resisting earthquake and bending and enabling the wood beam to recover the original state.
Drawings
FIG. 1 is a schematic structural view of example 1 of the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a schematic structural view of a wedge-shaped plug in embodiment 1 of the present invention;
FIG. 4 is a cross-sectional view of FIG. 1;
FIG. 5 is a schematic structural view of embodiment 2 of the present invention;
FIG. 6 is a top view of FIG. 5;
FIG. 7 is a bottom view of FIG. 5;
FIG. 8 is a cross-sectional view of FIG. 5;
fig. 9 is a schematic structural diagram of embodiment 3 of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clear, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. The specific embodiments described herein are merely illustrative of the invention and are not intended to be limiting.
Example 1
As shown in fig. 1, the elastic anti-seismic device for the wood beam comprises a plurality of layers of wood boards 2 arranged below a wood beam 1, wherein the wood boards 2 are at least two layers, two U-shaped hoops 3 are used for tightly fixing two ends of the wood beam 1 and the wood boards 2, an opening 4 of each U-shaped hoop 3 faces downwards, namely the U-shaped hoops 3 are arranged on the upper end surface and the side surface of the wood beam 1, a split bolt hole is formed in the opening 4, and two ends of each split bolt 5 are fixed by nuts 6 after penetrating through the split bolt hole; the hole opening positions of the split bolt holes are prefabricated according to the sum of the thickness of all layers of the wood boards 2 and the thickness of the wood beam 1, and the two U-shaped hoops 3 are arranged along the length direction of the wood boards 2 according to the actual distance; the inboard width of U type clamp 3 with 1 width of plank beam equals, and 3 side height of U type clamp surpasss the lower terminal surface of whole layers of plank, and the inner wall of U type clamp 3 is hugged closely plank beam 1 and plank 2 surfaces.
In the embodiment, a gluing mode is not adopted, the frictional force is used between the wood boards 2 to replace the gluing force, and for the bending deformation phenomenon of the wood beam caused by instant impact load and periodic fatigue damage, larger energy can be counteracted and absorbed through the elastic force generated by the deformation of the wood boards 2 and the frictional force between the wood boards 2, and meanwhile, certain deformation can be generated without damage, so that the yield time of the damage process is prolonged, and the structure of the wood beam is in an elastic state under small shock; in the middle earthquake, the structure can be damaged, but can be continuously used after being repaired; in case of a major earthquake, the structure may be damaged, but not collapsed or endangered in life. The material properties of the wood beam 1 and the wood board 2 can be fully utilized.
As shown in fig. 2 and 4, at least two through holes are formed in the upper end face of the U-shaped clamp 3, positioning holes are formed in positions of the wood beam 1 corresponding to the through holes, positioning bolts 7 are located in the corresponding through holes and the corresponding positioning holes in a clearance fit mode, and the clearance amount of the clearance fit is 0.1-0.2 mm.
In this embodiment, when drilling the positioning hole, the positioning hole is a round hole, rather than a threaded hole formed by tearing, and the round hole is uniformly stressed, especially, in the positioning hole in the embodiment, the positioning bolt only needs to be placed in the positioning hole in clearance fit, which is not only convenient for maintenance, but also conforms to the self-regulation mechanism of the wood beam 1.
As shown in fig. 3, a wedge plug 8 is disposed between the upper end surface of the U-shaped yoke 3 and the upper end surface of the wood beam 1.
The bottom surface and the inclined plane of the wedge-shaped plug 8 are equidistantly distributed with a plurality of strip-shaped tooth sockets, and the tooth sockets on the strip-shaped tooth sockets are in the same direction as the thickness increasing direction of the wedge-shaped plug 8.
The two sides of the split bolt 5 exceed the width part of the wood board 2 and are provided with threads, the middle part of the split bolt 5 is not provided with threads, and the surface of the split bolt 5 is galvanized.
The wood board 2 comprises one or more of a solid wood sawn board, a multilayer plywood and a bamboo integrated board, and the width of the wood board 2 is consistent with that of the wood beam 1; the wood beam 1 comprises solid wood sawn timber, laminated veneer lumber, parallel wood chip veneer lumber, rotary cut board veneer lumber, laminated wood or directional planed wood. The wood board 2 is made of a material with good toughness.
The U type clamp 3 of this embodiment can regard as independent component to use, and nimble installation is dismantled conveniently, can be used to the later stage compensation and consolidate.
The installation method of the elastic anti-seismic device of the wood beam comprises the following steps:
s01, measuring the length, width and height of the wood beam 1; selecting a proper device scheme according to the measurement result;
s02, processing the wood board 2, wherein the surface of the wood board 2 is required to be flat and consistent in thickness, and the surface of the wood board 2 is coated with tung oil for at least three times and dried until the tung oil is completely absorbed by the wood board 2;
s03, prefabricating the through hole and the split bolt hole in the U-shaped clamp 3, wherein the hole positions of the through hole and the split bolt hole are both located in the center of the surface width of the U-shaped clamp 3;
s04, mounting the U-shaped clamp 3 on the wood beam 1, firstly placing the U-shaped clamp 3 at a preset point of the wood beam 1, positioning the hole position of the prefabricated positioning hole on the upper end surface of the wood beam 1 through the through hole, marking the mark, then drilling, wherein the hole depth of the positioning hole is 30-35 mm, then placing the U-shaped clamp 3 to align the through hole and the positioning hole, and then placing the positioning bolt 7 into the corresponding through hole and the positioning hole in a clearance fit manner;
s05, transversely aligning all layers of wood boards 2, inserting the wood boards into the U-shaped clamp 3 from bottom to top until the wood boards are tightly attached to the lower surface of the wood beam 1, and then binding the wood boards 2 and the wood beam 1 together by ropes, wherein the wood boards 2 and the wood beam 1 are required to be tightly attached without gaps;
s06, slowly inserting the split bolt 5 into the split bolt hole, and locking the two sides by the nut 6;
s07, symmetrically knocking in the prefabricated wedge-shaped plugs 8 at the joint of the U-shaped hoop 3 and the upper end face of the wood beam 1, enabling the split bolt 5 to be tightly jointed with the bottom wood board 2, and then releasing the rope, so that the installation is completed.
In the embodiment, the wood boards 2 are arranged in multiple layers, the multiple layers of wood boards 2 positioned in the middle can be independently stressed and deformed, when the wood beam 1 is subjected to instant impact load, the wood boards 2 which can freely move in each layer deform and stretch layer by layer, the stretching motion brings the motion friction force between the wood boards 2, when the instant impact load is increased, the friction force generated by the stretching motion between the wood boards 2 is also increased, so that the wood boards 2 in each layer convert part of the instant impact load into the friction force between the laminated boards, thereby reducing the load impact on the wood beam 1, the elasticity generated by the deformation of the laminated boards and the friction force between the laminated boards counteract and absorb the energy of part of the impact load, and further greatly reducing the load impact on the wood beam 1.
Simultaneously, this embodiment utilizes the pilot bolt 7 spacing with U type clamp 3, avoids U type clamp 3 to make two adjacent U type clamps 3 effort too near after the displacement to middle displacement gradually at the U type clamp 3 that wood beam 1 and 2 deformation in-process lead to of plank, and wood beam 1's bending becomes little, and the shearing force grow can't play the high-efficient restoration of the oneself shock attenuation formula of wood beam 1.
In the embodiment, the elastic deformation of each layer of wood board 2 can improve the elastic deformation capacity of the wood beam 1, and when the breaking load is not enough to enable the wood beam 1 to reach the plastic yield stage, the device can enable the wood beam 1 to recover the original state, so that the embodiment has the functions of damping, bending reduction, shock resistance, bending resistance and enabling the wood beam 1 to recover the original state.
Example 2
As shown in fig. 5~ 8, the elasticity antidetonation device of wooden beam, including setting up in the isometric plank 2 of a plurality of layers of wooden beam 1 below, plank 2 is two-layer at least, and U type clamp 3 closely fixes wooden beam 1 and plank 2, U type clamp 3's opening 4 down, promptly at 1 up end of wooden beam and side-mounting U type clamp 3, U type clamp 3's lower extreme towards 2 middle parts of plank extend and form stull 9, two all be provided with the through-hole on the stull 9, plank 2 with the corresponding position department of through-hole is provided with the locating hole, and 7 interference fit formulas of pilot pin are located correspondingly the through-hole with in the locating hole, interference fit's interference magnitude is 0.1~0.2 mm. The upper end face of the U-shaped hoop 3 is sleeved with a roller 10. The two U-shaped hoops 3 are arranged along the length direction of the wood board 2 according to the actual distance; the inboard width of U type clamp 3 with 1 width of timber beams equals, and timber beams 1 and 2 surfaces of plank are hugged closely to the inner wall of U type clamp 3, and the side length of U type clamp 3 is prefabricated according to the thickness of the plank 2 of all layers and the thickness sum of timber beams 1.
The shape of the upper end face of the U-shaped hoop 3 is cylindrical, and the gap between the roller 10 and the U-shaped hoop 3 is 0.05-0.1 mm.
The roller 10 is made of high-strength alloy steel.
The high-strength alloy steel comprises Nb-containing microalloyed steel, Nb-V and Nb-Ti composite microalloyed steel.
The hole depth of the positioning hole is 30-35 mm.
The installation method of the elastic anti-seismic device of the wood beam comprises the following steps:
s01, measuring the length, width and height of the wood beam 1;
s02, processing the wood board 2, wherein the surface of the wood board 2 is required to be flat and consistent in thickness, and the surface of the wood board 2 is coated with tung oil for at least three times and dried until the tung oil is completely absorbed by the wood board 2;
s03, prefabricating the roller 10 on the U-shaped clamp 3, and sleeving the roller 10 on the upper end surface of the U-shaped clamp 3; prefabricating the through hole in the U-shaped clamp 3, wherein the hole position of the through hole is located in the middle position of the surface width of the U-shaped clamp 3;
s04, mounting the U-shaped clamp 3 on the wood beam 1, firstly placing the U-shaped clamp 3 at a preset point of the wood beam 1, horizontally bending the cross brace 9, sequentially inserting all layers of the wood boards 2 into the inner side of the U-shaped clamp 3 until the wood boards are tightly attached to the lower surface of the wood beam 1, and then binding the wood boards 2 and the wood beam 1 together by using ropes, wherein the wood boards 2 and the wood beam 1 are required to be tightly attached without gaps;
s05, positioning hole positions of the prefabricated positioning holes on the lower end face of the wood board 2 through the through holes, marking marks, drilling holes, wherein the hole depth of the positioning holes is 30-35 mm, placing the U-shaped clamp 3 to enable the through holes to be aligned with the positioning holes, and placing the positioning bolts 7 into the corresponding through holes and the corresponding positioning holes in an interference fit mode; finally, the rope is released, and the installation is completed.
In the embodiment, the wood board 2 is punched and positioned, the wood beam 1 is not required to be punched, the wood beam 1 deforms and bends under the action of impact and vibration load, and the roller 10 serving as a non-constraint part can freely roll towards the bending center, so that the wood board 2 is freely deformed and cannot be torn and damaged by external force; when the load disappears, the roller 10 can freely roll along the direction far away from the two sides of the bending center under the action of multiple internal forces of the wood beam 1 and the wood board 2, so that the wood beam 1 and the wood board 2 are restored to the state before loading. The roller 10 is added as a buffer, so that the anti-seismic, shock-absorbing, bending-resistant, bending-reducing and self-recovery functions of the wood beam are improved once.
Example 3
As shown in fig. 9, the present embodiment differs from embodiment 2 only in that: the elastic anti-seismic device of the wood beam comprises a plurality of layers of wood boards 2 which are arranged below the wood beam 1 and are arranged in a fish belly shape and have different lengths, wherein the wood boards 2 are at least three layers, and a U-shaped clamp 3 is tightly fixed on the wood beam 1 and the wood boards 2. The number of the U-shaped clamps 3 is at least 3.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. Elasticity antidetonation device of timber beams, its characterized in that: the wood beam fixing device comprises a plurality of layers of wood boards (2) arranged below a wood beam (1), at least two U-shaped clamps (3) are used for tightly fixing the wood beam (1) and the wood boards (2), openings (4) of the U-shaped clamps (3) face downwards, split bolt holes are formed in the openings (4), and split bolts (5) penetrate through the split bolt holes and then are fixed by nuts (6); the up end of U type clamp (3) is provided with two at least through-holes, wooden beam (1) with the corresponding position department of through-hole is provided with the locating hole, and pilot pin (7) clearance fit formula is located correspondingly the through-hole with in the locating hole, the up end of U type clamp (3) with be provided with wedge stopper (8) between the up end of wooden beam (1).
2. Elastic anti-seismic device of wooden beams according to claim 1, characterized in that: the bottom surface and the inclined plane of the wedge-shaped plug (8) are equidistantly distributed with a plurality of strip-shaped tooth sockets, and the tooth sockets on the strip-shaped tooth sockets are in the same direction as the thickness increasing direction of the wedge-shaped plug (8).
3. Elastic anti-seismic device of wooden beams according to claim 1, characterized in that: the width part of the two sides of the split bolt (5) exceeding the wood board (2) is provided with threads, the middle part of the split bolt (5) is not provided with threads, and the surface of the split bolt (5) is galvanized.
4. Elastic anti-seismic device of wooden beams according to claim 1, characterized in that: the clearance amount of the clearance fit is 0.1-0.2 mm.
5. Elastic anti-seismic device of wooden beams according to claim 1, characterized in that: the wood board (2) comprises one or more of a solid wood sawn board, a multilayer plywood and a bamboo integrated board, and the width of the wood board (2) is consistent with that of the wood beam (1); the wood beam (1) comprises solid wood sawn timber, laminated veneer lumber, parallel wood chip veneer lumber, rotary cut board veneer lumber, laminated veneer lumber or directional shaving lumber.
6. Elastic anti-seismic device of wooden beams according to claim 1, characterized in that: the U-shaped hoop (3), the positioning bolt (7) and the wedge-shaped plug (8) are all made of steel.
7. A method of installing an elastic anti-seismic device for a wooden beam according to any one of claims 1 to 6, wherein: the method comprises the following steps:
s01, measuring the length, width and height of the wood beam (1);
s02, processing the wood board (2), wherein the surface of the wood board (2) is required to be flat and consistent in thickness, coating the surface of the wood board (2) with tung oil for at least three times, and airing until the tung oil is completely absorbed by the wood board (2);
s03, prefabricating the through hole and the split bolt hole in the U-shaped clamp (3), wherein the hole positions of the through hole and the split bolt hole are both located in the center of the surface width of the U-shaped clamp (3);
s04, mounting the U-shaped clamp (3) on the wood beam (1), firstly placing the U-shaped clamp (3) at a preset point of the wood beam (1), positioning hole positions of the prefabricated positioning holes on the upper end face of the wood beam (1) through the through holes, marking marks, drilling holes, wherein the hole depth of the positioning holes is 30-35 mm, then placing the U-shaped clamp (3) to align the through holes and the positioning holes, and then placing the positioning bolts (7) into the corresponding through holes and the positioning holes in a clearance fit manner;
s05, transversely aligning all layers of wood boards (2), inserting the wood boards into the U-shaped clamp (3) from bottom to top until the wood boards are tightly attached to the lower surface of the wood beam (1), and then binding the wood boards (2) and the wood beam (1) together by ropes, wherein the wood boards and the wood beam (1) are required to be tightly attached without gaps;
s06, slowly inserting the split bolt (5) into the split bolt hole, and locking two sides by the nut (6);
s07, symmetrically knocking in the prefabricated wedge-shaped plugs (8) at the joint of the U-shaped hoop (3) and the upper end face of the wood beam (1), enabling the split bolts (5) to be tightly attached to the bottom layer of the wood board (2), and then releasing the rope, so that the installation is completed.
8. Elasticity antidetonation device of timber beams, its characterized in that: including setting up in a plurality of layers of plank (2) of plank roof beam (1) below, U type clamp (3) are closely fixed plank roof beam (1) and plank (2), opening (4) of U type clamp (3) are down, the lower extreme of U type clamp (3) towards plank (2) middle part is extended and is formed stull (9), two all be provided with the through-hole on stull (9), plank (2) with the corresponding position department of through-hole is provided with the locating hole, and pilot pin (7) interference fit formula is located correspondingly the through-hole with in the locating hole, the up end cover of U type clamp (3) has roller (10).
9. Elastic anti-seismic device of wooden beams according to claim 8, characterized in that: the upper end face of the U-shaped clamp (3) is cylindrical, and the gap between the roller (10) and the U-shaped clamp (3) is 0.05-0.1 mm; the roller (10) is made of high-strength alloy steel; the interference magnitude of the interference fit is 0.1-0.2 mm; the hole depth of the positioning hole is 30-35 mm.
10. A method of installing an elastic anti-seismic device for a wooden beam according to any one of claims 8 to 9, wherein: the method comprises the following steps:
s01, measuring the length, width and height of the wood beam (1);
s02, processing the wood board (2), wherein the surface of the wood board (2) is required to be flat and consistent in thickness, coating the surface of the wood board (2) with tung oil for at least three times, and airing until the tung oil is completely absorbed by the wood board (2);
s03, prefabricating the roller (10) on the U-shaped clamp (3), and sleeving the roller (10) on the upper end surface of the U-shaped clamp (3); prefabricating the through hole in the U-shaped clamp (3), wherein the hole position of the through hole is located in the middle position of the surface width of the U-shaped clamp (3);
s04, mounting the U-shaped clamp (3) on the wood beam (1), firstly placing the U-shaped clamp (3) at a preset point of the wood beam (1), horizontally bending the cross brace (9), sequentially inserting all layers of the wood boards (2) into the U-shaped clamp (3) until the wood boards are tightly attached to the lower surface of the wood beam (1), and then binding the wood boards (2) and the wood beam (1) together by using ropes to require that the wood boards and the wood beam (1) are tightly attached without gaps;
s05, positioning hole positions of the prefabricated positioning holes on the lower end face of the wood board (2) through the through holes, marking marks, drilling holes, wherein the hole depth of the positioning holes is 30-35 mm, placing the U-shaped clamp (3) to enable the through holes to be aligned with the positioning holes, and placing the positioning bolts (7) into the corresponding through holes and the corresponding positioning holes in an interference fit mode; finally, the rope is released, and the installation is completed.
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| CN110965699B (en) | 2020-07-07 |
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