CN110863567A - Can regulate and control prestressing force steel filling plate bolted connection beam column device - Google Patents
Can regulate and control prestressing force steel filling plate bolted connection beam column device Download PDFInfo
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- CN110863567A CN110863567A CN201911174830.5A CN201911174830A CN110863567A CN 110863567 A CN110863567 A CN 110863567A CN 201911174830 A CN201911174830 A CN 201911174830A CN 110863567 A CN110863567 A CN 110863567A
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- column
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 98
- 239000010959 steel Substances 0.000 title claims abstract description 98
- 239000002023 wood Substances 0.000 claims abstract description 54
- 210000002435 tendon Anatomy 0.000 claims abstract description 28
- 239000000945 filler Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 11
- 238000004873 anchoring Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/26—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of wood
- E04B1/2604—Connections specially adapted therefor
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/26—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of wood
- E04B1/2604—Connections specially adapted therefor
- E04B2001/2644—Brackets, gussets or joining plates
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/26—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of wood
- E04B1/2604—Connections specially adapted therefor
- E04B2001/2652—Details of nailing, screwing, or bolting
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/26—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of wood
- E04B1/2604—Connections specially adapted therefor
- E04B2001/266—Socket type connectors
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/26—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of wood
- E04B1/2604—Connections specially adapted therefor
- E04B2001/2676—Connector nodes
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention discloses an adjustable prestressed steel filling plate bolt connecting beam column device, which comprises laminated wood, connecting steel, prestressed tendons, an anchorage device, a tensioning device and a steering block, wherein the laminated wood is provided with a plurality of steel plates; the laminated wood comprises a wood column and a wood beam, and a steel filling plate is arranged in a joint position where the wood column and the wood beam are connected; the steering blocks are positioned on two sides of the wood column and fixedly arranged on the wood beam; the connecting steel is fixedly arranged at the tail end of the wood beam, a wedge-shaped steel pad is arranged on the side surface of the connecting steel, a first groove is formed in the wedge-shaped steel pad, and a first bearing is embedded in the first groove; the tensioning device comprises a steel plate and a screw rod, wherein the steel plate is provided with a threaded hole, and the screw rod penetrates through the threaded hole to be fixedly connected with the inner ring of the first bearing; the prestressed tendon passes through the anchorage device, the steel plate, the connecting steel and the steering block, and the tail end of the prestressed tendon is anchored on the anchorage device. The invention improves the stress performance of the bolt connection joint of the laminated wood steel filler plate, and can recover the deformation of the joint by prestress regulation and control to reduce the structural damage.
Description
Technical Field
The invention relates to the technical field of civil engineering, in particular to an adjustable prestressed steel filling plate bolt connecting beam column device.
Background
The laminated wood is a main material of modern wood structure, the laminated wood structure is generally concerned all over the world due to the advantages of renewable materials, environmental protection, reliable stress, good anti-seismic performance, high industrialization degree, short construction period, moisture resistance, corrosion resistance, sound insulation, noise prevention, good fire resistance and the like, and China also vigorously promotes green buildings in recent years and advocates the use of modern wood structure buildings.
Beam column node is important atress position in frame construction, and timber structure beam column node adopts modes such as pin joint, tenon fourth of the twelve earthly branches connection and bar planting connection usually, and wherein steel filler plate bolted connection is because construction convenience, and the atress is reliable, can satisfy advantages such as various complicated shapes, is timber structure nodal connection's an important form. However, the traditional wood structure node connection generally has the defects of low bearing capacity, small rigidity, and poor ductility and energy consumption capacity, wherein the glued wood steel filling plate bolt connection beam-column node also has the problems of limited bearing capacity and rigidity, and the deformation capacity shown in the stress process is general, and the ductility and the energy consumption capacity are poor.
Therefore, how to strengthen the stress performance of the bolt connection beam column joint of the laminated wood steel filling plate is a problem which needs to be solved urgently by the technical personnel in the field.
Disclosure of Invention
In view of the above, the invention provides an adjustable prestressed steel filling plate bolt connection beam column device, which adopts a tensioning device, a steering block and prestressed tendons to improve the stress performance of a glued wood steel filling plate bolt connection node. And because this device has the characteristics of regulating and controlling prestressing force at any time in the use, after taking place disasters such as typhoon, earthquake, can restore the deformation of node through prestressing force regulation and control, reduce structural damage.
In order to achieve the purpose, the invention adopts the following technical scheme:
the adjustable prestressed steel filling plate bolt beam column connecting device comprises laminated wood, and is characterized by also comprising connecting steel, prestressed tendons, an anchorage device, a tensioning device and two steering blocks;
the laminated wood comprises a wood column and a wood beam, and a steel filling plate with a plurality of screw holes is arranged in a joint position where the wood column and the wood beam are connected; the wood columns, the wood beams and the steel filling plates are fixed through bolts;
the steering blocks are positioned on two sides of the wood column and fixedly arranged on the wood beam;
the connecting steel is fixedly arranged at the tail end of the wood beam, a wedge-shaped steel pad is arranged on the side face of the connecting steel, a first groove is formed in the wedge-shaped steel pad, and a first bearing is embedded in the first groove;
the tensioning device comprises a steel plate and a screw rod, a threaded hole is formed in the steel plate, and the screw rod penetrates through the threaded hole to be fixedly connected with the inner ring of the first bearing;
the anchorage device is detachably connected with the steel plate;
the prestressed tendons penetrate through the anchorage device, the steel plate, the connecting steel and the steering block, and the tail ends of the prestressed tendons are anchored on the anchorage device.
Preferably, both ends of turning to the piece are provided with the second recess, second recess embedded has the second bearing, the prestressing tendons passes from the interior of second bearing.
Preferably, one end of the screw rod, which is far away from the connecting steel, is a hexagonal prism.
Preferably, a third groove is formed in the steel plate, and the prestressed tendons penetrate through the third groove.
According to the technical scheme, compared with the prior art, the invention has the following beneficial effects:
the prestress limits the deformation of the joint in the low-cycle reciprocating circulation process, and the tension of the prestress rib is gradually increased along with the deformation increase of the beam end, the effect is more obvious, the damage type of a test piece of the bolt connection joint of the steel filling plate is changed into ductility damage after the prestress is applied, the crack development can be delayed, and the material performance can be more fully exerted during the damage, so that the seismic performance of the bolt connection joint of the external prestress steel filling plate disclosed by the invention is obviously improved compared with that of the bolt connection joint of the common steel filling plate, and the stress performance of the bolt connection joint of the common steel filling plate is effectively improved. The prestress can be determined according to the using load, and the component can be installed and used after the prestress is added. If necessary (such as the wood has larger creep or the use load changes), the prestress can be adjusted in the use process of the component, and only the screw rod needs to be screwed.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a front view of the overall structure of the present invention;
FIG. 2 is a top view of the overall structure of the present invention;
FIG. 3 is a front view of the connection steel of the present invention;
FIG. 4 is a side view of the connection steel of the present invention;
FIG. 5 is a schematic view showing the structure of a steel plate according to the present invention;
FIG. 6 is a schematic view of a tensioning device according to the present invention;
FIG. 7 is a schematic view of a turning block structure according to the present invention.
Wherein, in the figure,
1-a wood column; 2-a wood beam; 3-steel filler plate; 4-a turning block; 401-a second groove; 402-a second bearing; 5-connecting steel; 51-wedge shaped steel pads; 501-a first groove; 6, tensioning the device; 61-steel plate; 611-a threaded hole; 612-a third groove; 62-screw rod; 7-an anchorage device; 8-prestressed tendons.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
First, an embodiment
As shown in fig. 1-2, the embodiment of the invention discloses an adjustable prestressed steel filling plate bolt connecting beam column device, which comprises laminated wood, connecting steel 5, prestressed tendons 8, an anchorage device 7, a tensioning device 6 and two steering blocks 4;
the laminated wood comprises a wood column 1 and a wood beam 2, and a steel filling plate 3 with a plurality of screw holes is arranged in a joint position where the wood column 1 is connected with the wood beam 2; the wooden columns 1, the wooden beams 2 and the steel filling plates 3 are fixed through bolts;
the turning blocks 4 are located on two sides of the wooden column 1 and fixedly arranged on the wooden beam 2, as shown in fig. 7, second grooves 401 are arranged at two ends of the turning blocks 4, second bearings 402 are embedded in the second grooves 401, and the prestressed tendons 8 penetrate through the second bearings 402.
The connecting steel 5 is fixedly arranged at the tail end of the wood beam 2, as shown in fig. 3-4, a wedge-shaped steel pad 51 is arranged on the side surface of the connecting steel 5, a first groove 501 is arranged in the wedge-shaped steel pad 51, and a first bearing is embedded in the first groove 501;
as shown in fig. 6, the tensioning device 6 comprises a steel plate 61 and a screw 62, wherein the steel plate 61 is provided with a threaded hole 611, and the screw 62 passes through the threaded hole 611 to be fixedly connected with the inner ring of the first bearing; the end of the screw 62 remote from the connecting steel 5 is hexagonal prism so that the screw 62 can be rotated by a tool. As shown in fig. 5, the steel plate 61 is provided with a third groove 612, and the tendon 8 passes through the third groove 612.
The anchorage device 7 is detachably connected with the steel plate 61;
the prestressed tendon 8 passes through the anchorage 7, the third groove 612, the connecting steel 5 and the second groove 401, and the tail end of the prestressed tendon is anchored on the anchorage 7.
Second, installation method
The invention discloses an installation method of an adjustable prestressed steel filling plate bolt connecting beam column device, which comprises the following steps:
the first step is as follows: assembling bolted connection nodes of a steel filling plate 3, respectively positioning holes and grooves on a glued wood beam 2 and a wood column 1 according to a design drawing, drilling and grooving at the positioning part, inserting the steel filling plate 3 into the column groove, connecting by using bolts, placing a beam groove on one side corresponding to a steel plate hole, connecting the bolts, and finally connecting the other side beam and the steel plate with the bolts;
the second step is that: mounting connecting steel 5 and a steering block 4, firstly mounting the beam end connecting steel 5 on the left side and the right side in place, determining the position of the steering block 4 according to the mechanical principle, fixing the steering block 4 on a beam by using AB glue or other ways, and placing rubber at the bottom of the steering block 4 to prevent the local bottom of the steering block 4 from being crushed;
the third step: anchoring the end part, cutting out the prestressed tendons 8, sequentially penetrating the prestressed tendons 8 through the anchorage devices at the two ends in sequence, and anchoring, wherein the anchoring method is determined by the type of the prestressed tendons, the steel wire is anchored by adopting a pier head, and the steel strand is anchored by adopting a clamping piece;
the fourth step: placing the prestressed tendons and applying prestress, placing the prestressed tendons in grooves of the steering 4 blocks, the beam end connecting steel 5 and the steel plate 61, and fixing. Then, the screw rod 62 is rotated to push the beam end tensioning device to translate, so that the prestressed tendons are tensioned and prestressed.
The connecting steel is arranged at the beam ends at two sides and has the functions of protecting the beam ends and connecting beam end tension devices and uniformly transmitting the force of the prestressed tendons to the beams. The method is characterized in that a wedge-shaped steel gasket is placed between the beam end bottom and the beam end connecting steel, two holes with threads are reserved on the beam end connecting steel, and bolts are screwed down to enable the wedge-shaped steel gasket to be in close contact with the beam bottom.
The bottom section of the screw 62 is machined into a hexagonal prism to facilitate rotation of the screw with a tool. The inside of the turning block of the beam end tensioning device 6 is provided with a thread matched with the screw 62, and when the screw 62 is screwed, the steel plate 61 can move up and down.
The upper parts of the two side beams are provided with steering blocks 4, and the grooves of the steering blocks 4 are internally provided with bearings which are used for reducing the friction between the prestressed tendons and the steering blocks.
The anchorage 7 is connected with a steel plate 61 in the beam end tension device through a bolt, so that the anchorage is prevented from moving when prestress is applied.
Third, the method of the invention
When the prestressed reinforcement is used, the prestressed reinforcement is firstly placed into the beam end connecting steel member and the steering block at two sides, then the prestressed reinforcement is anchored at the end part, then the screw rod can be rotated to apply the prestress, the size of the applied prestress can be determined according to the size of a using load, and the member can be installed and used after the prestress is added. If necessary (such as the wood has larger creep or the use load changes), the prestress can be adjusted in the use process of the component, and only the screw rod needs to be screwed.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (4)
1. The adjustable prestressed steel filling plate bolt beam column connecting device comprises laminated wood, and is characterized by also comprising connecting steel, prestressed tendons, an anchorage device, a tensioning device and two steering blocks;
the laminated wood comprises a wood column and a wood beam, and a steel filling plate with a plurality of screw holes is arranged in a joint position where the wood column and the wood beam are connected; the wood columns, the wood beams and the steel filling plates are fixed through bolts;
the steering blocks are positioned on two sides of the wood column and fixedly arranged on the wood beam;
the connecting steel is fixedly arranged at the tail end of the wood beam, a wedge-shaped steel pad is arranged on the side face of the connecting steel, a first groove is formed in the wedge-shaped steel pad, and a first bearing is embedded in the first groove;
the tensioning device comprises a steel plate and a screw rod, a threaded hole is formed in the steel plate, and the screw rod penetrates through the threaded hole to be fixedly connected with the inner ring of the first bearing;
the anchorage device is detachably connected with the steel plate;
the prestressed tendons penetrate through the anchorage device, the steel plate, the connecting steel and the steering block, and the tail ends of the prestressed tendons are anchored on the anchorage device.
2. The adjustable prestressed steel-filled plate bolt connection beam column device as claimed in claim 1, wherein second grooves are formed in two ends of the turning block, second bearings are embedded in the second grooves, and the prestressed tendons penetrate through the second bearings.
3. The adjustable prestressed steel filled plate bolt connection beam column device as claimed in claim 1, wherein an end of said screw rod away from said connection steel is in a hexagonal prism structure.
4. The adjustable prestressed steel-filled plate bolted beam column device according to claim 1, wherein said steel plate is provided with a third groove, and said prestressed tendons pass through said third groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911174830.5A CN110863567A (en) | 2019-11-26 | 2019-11-26 | Can regulate and control prestressing force steel filling plate bolted connection beam column device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911174830.5A CN110863567A (en) | 2019-11-26 | 2019-11-26 | Can regulate and control prestressing force steel filling plate bolted connection beam column device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110863567A true CN110863567A (en) | 2020-03-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911174830.5A Pending CN110863567A (en) | 2019-11-26 | 2019-11-26 | Can regulate and control prestressing force steel filling plate bolted connection beam column device |
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| CN (1) | CN110863567A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114135118A (en) * | 2021-12-09 | 2022-03-04 | 同济大学 | FRP prestress monitoring and adjusting device and method capable of realizing intelligent service |
| CN115958692A (en) * | 2023-02-16 | 2023-04-14 | 中建八局第一建设有限公司 | Pre-tensioning method beam steel strand secondary steering device and construction method |
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| CN108708498A (en) * | 2018-07-09 | 2018-10-26 | 上海建工集团股份有限公司 | A kind of external prestressing strengthening concrete frame beam structure and its construction method |
| CN108797885A (en) * | 2018-07-19 | 2018-11-13 | 东北林业大学 | A kind of controllable prestressing force CLT boom plate |
| CN109811948A (en) * | 2018-12-04 | 2019-05-28 | 济南大学 | A kind of dual-prestressed composite frame of large span and floor system and construction method |
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2019
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|---|---|---|---|---|
| KR20010108857A (en) * | 2000-05-31 | 2001-12-08 | 이창남 | External Pre-Stressed Frame : EPSF |
| CN201133085Y (en) * | 2007-06-07 | 2008-10-15 | 李树林 | Structure for enhancing external prestressing force effect |
| CN103276811A (en) * | 2013-05-14 | 2013-09-04 | 南京工业大学 | Screw hole enhanced type large-span glued wood column beam connecting structure |
| CN103388408A (en) * | 2013-07-28 | 2013-11-13 | 桂林理工大学 | External pre-stressed tendon reinforcing steering block for building structure |
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| WO2018139730A1 (en) * | 2017-01-26 | 2018-08-02 | 최규웅 | Earthquake-proof reinforced wooden structure with pre-stressed tendon introduced thereto and construction method therefor |
| CN106958315A (en) * | 2017-05-17 | 2017-07-18 | 东北林业大学 | A kind of double limb controllable prestressing force beam string structures of large span |
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| CN108797885A (en) * | 2018-07-19 | 2018-11-13 | 东北林业大学 | A kind of controllable prestressing force CLT boom plate |
| CN109811948A (en) * | 2018-12-04 | 2019-05-28 | 济南大学 | A kind of dual-prestressed composite frame of large span and floor system and construction method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114135118A (en) * | 2021-12-09 | 2022-03-04 | 同济大学 | FRP prestress monitoring and adjusting device and method capable of realizing intelligent service |
| CN114135118B (en) * | 2021-12-09 | 2022-08-09 | 同济大学 | FRP prestress monitoring and adjusting device and method capable of realizing intelligent service |
| CN115958692A (en) * | 2023-02-16 | 2023-04-14 | 中建八局第一建设有限公司 | Pre-tensioning method beam steel strand secondary steering device and construction method |
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