CN104032832B - A kind of post-stressed bamboo-wood structure framework - Google Patents
A kind of post-stressed bamboo-wood structure framework Download PDFInfo
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- CN104032832B CN104032832B CN201410252117.9A CN201410252117A CN104032832B CN 104032832 B CN104032832 B CN 104032832B CN 201410252117 A CN201410252117 A CN 201410252117A CN 104032832 B CN104032832 B CN 104032832B
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- post
- steel bushing
- bamboo
- column
- prestressed reinforcement
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- 239000002023 wood Substances 0.000 title claims abstract description 28
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 42
- 239000010959 steel Substances 0.000 claims abstract description 42
- 230000002787 reinforcement Effects 0.000 claims abstract description 39
- 238000006073 displacement reaction Methods 0.000 claims abstract description 14
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 8
- 238000003466 welding Methods 0.000 claims description 4
- 238000005493 welding type Methods 0.000 claims description 4
- 235000017166 Bambusa arundinacea Nutrition 0.000 abstract 1
- 235000017491 Bambusa tulda Nutrition 0.000 abstract 1
- 241001330002 Bambuseae Species 0.000 abstract 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 abstract 1
- 239000011425 bamboo Substances 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 20
- 238000005516 engineering process Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 3
- 210000002435 tendon Anatomy 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 241000771208 Buchanania arborescens Species 0.000 description 1
- 235000010627 Phaseolus vulgaris Nutrition 0.000 description 1
- 244000046052 Phaseolus vulgaris Species 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000009432 framing Methods 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- Joining Of Building Structures In Genera (AREA)
Abstract
The invention discloses a kind of post-stressed bamboo-wood structure framework, comprise the bamboo-wood structure crossbeam and column that are connected by node, described node comprises and is enclosed within steel bushing on column and the L-type steel affixed with steel bushing, steel bushing is fixed by the bolt and column being arranged on its corner, L-type steel another side is fixed by bolt and beam-end, described column steel bushing position is provided with oblique pin, on steel bushing, correspondence has pin hole, be installed with prestressed reinforcement in pin hole, prestressed reinforcement is strained and fixed by ground tackle at two pairs of corner nodes.There is provided larger lateral rigidity when prestressed reinforcement of the present invention is in structure experience earthquake with at wind action, also provide certain return action when structure produces certain lateral displacement.This patent can reduce the cost of structure, improves the anti-seismic performance of structure significantly, can be applied in the structure design of bamboo wooden frame, also can be widely used in the reinforcing of bamboo-wood structure.
Description
Technical field
The present invention relates to building structure field, particularly the post-stressed bamboo-wood structure framework of one.
Background technology
The primary structure form of modern wood structure has post and beam structure system and Light Wood Frame Construction two kinds.Light-duty wooden is due to the requirement of structure itself, although can provide the larger rigidity of structure, the space of structure is smaller, not too need be applicable to adopting light-duty wooden compared with the building in great opening space; The claimed structure of post and beam structural system own must have enough bending rigidities and lateral deformation stiffness, and therefore in the design of post and beam structural framing, structure lateral deformation stiffness and displacement structure are still the subject matter that design needs to solve.Therefore Many researchers also starts to propose various novel beam-post wood frame.
Prestressed timber structure is reinforced in wood structures design and ancient Wood construction and is obtained good utilization.The wooden construction of this form uses the character of steel preferably, compensate for the deficiency of wooden construction Rigidity and strength.But the application of the prestressed timber structure of present stage is only confined in the reinforcement of the component performance of wooden construction, has what mention reinforced bar support form to be also be applied in the shear wall structural form of light-duty wooden, do not relate in post and beam structure.
The node of Chinese tradition wooden construction connects weak, and during earthquake, node not only bears horizontal force, also will bear the effect drawn and turn round; Structure lateral resistant ability is poor, and opposing horizontal loading is less able, and sidesway is excessive; Ductility of joint is little, easily produces brittle fracture under severe earthquake action.The node of structure beam-post wood frame is key member.The at present general connection adopting heavy duty metal connector to carry out beam column, comprises bolt, steel plate, driffractive ring, cuts dish, bar planting and laminated wood rivet etc.This can provide very large rotational stiffness, and bolt and rivet place produce partial pressing and destroy, and even make post longitudinal splitting, implant reinforcing bar place and produce sliding phenomenon, and constructional hole also can weaken beam cross-section.Proposition and the application of novel energy-consumption node are also comparatively urgent.
Summary of the invention
For solving above-mentioned prior art Problems existing, the object of this invention is to provide a kind of post-stressed bamboo-wood structure framework, the problems such as the lateral deformation stiffness for wooden construction frame construction is not enough and energy dissipation capacity is lower, propose a kind of novel frame construction type.Namely at the lateral deformation stiffness of the longitudinal post-stressed raising wooden construction framework of framework, have certain restoring force at prestressed reinforcement under design normal operating condition, be that structure can provide return action after there is certain displacement simultaneously.The lateral displacement of structure can be reduced, and have certain control action to the displacement structure occurred.The use of novel structures with semi-rigid joints can better hysteretic energy for structure, the larger integral rigidity that improve structure.This frame form can better improve stability and safety.
For achieving the above object, technical scheme of the present invention is:
A kind of post-stressed bamboo-wood structure framework, comprise the bamboo-wood structure crossbeam and column that are connected by node, described node comprises and is enclosed within steel bushing on column and the L-type steel affixed with steel bushing, steel bushing is fixed by the bolt and column being arranged on its corner, L-type steel another side is fixed by bolt and beam-end, described column steel bushing position is provided with oblique pin, on steel bushing, correspondence has pin hole, be installed with prestressed reinforcement in pin hole, prestressed reinforcement is strained and fixed by ground tackle at two pairs of corner nodes.
Further, described node chooses T-shaped or crisscross joint according to actual needs.
Further, described steel bushing and L-type steel lead to and connect as welding, and Type of Welding is four limit weld all arounds.
Further, described ground tackle comprises the anchor plate having corresponding reinforced hole, the tubaeform anchor slab be socketed with anchor plate, and in anchor slab, corresponding reinforced hole is provided with the fixture for clamping reinforcing bar.
Further, described ground tackle meets " use for tendon ground tackle, fixture and connector application technology code " (JGJ85-2002) requirement.
Further, described prestressed reinforcement stretch-draw scope is no more than 30% of prestressed reinforcement maximum flexibility displacement.
Relative to prior art, beneficial effect of the present invention is: prestressed reinforcement is attached in the middle of beam-post wood frame framework as cross support by the present invention, by pin, ground tackle and connector, prestressed reinforcement is connected with left and right sides post, each uses two prestressed reinforcements across framework, cross-reference.When frame construction is when producing lateral displacement, prestressed reinforcement also can produce stretching accordingly, displacement is larger, the pulling force produced in prestressed reinforcement is larger, the rigidity provided is also just thereupon larger, and the restoring force of reinforcing bar can make displacement structure recover rapidly, thus add the structural stability of this framework.With existing wooden frame system, cost of the present invention is low, easy construction, solves the problem that post and beam framework anti-side rigidity is less, and improves the energy efficiency of structure under earthquake and wind action, improves the security performance of structure.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is tee T node structure schematic diagram.
Fig. 3 is cross node structure schematic diagram.
Fig. 4 is node prestressed reinforcement perforation place structural texture schematic diagram.
Fig. 5 fixture schematic diagram of the present invention.
Fig. 6 is anchor plate top view.
Wherein, 1-node, 11-steel bushing, 12-L shaped steel, 13-bolt, 2-crossbeam, 3-column, 4-pin, 5-prestressed reinforcement, 6-ground tackle, 61-anchor plate, 62-is tubaeform anchor slab, 63-fixture.
Detailed description of the invention
Below in conjunction with the drawings and the specific embodiments, the present invention program is described in further details: below in conjunction with accompanying drawing, is described in detail of the present invention:
As shown in Figure 1, a kind of post-stressed bamboo-wood structure framework, comprise the bamboo-wood structure crossbeam 2 and column 3 that are connected by node 1, described node 1 comprises and is enclosed within steel bushing 11 on column 3 and the L-type steel 12 affixed with steel bushing 11, steel bushing 11 is fixed with column 3 by the bolt 13 being arranged on its corner, L-type steel 12 another side is by bolt 13 and crossbeam 2 end winding support, as shown in Figure 4, described column steel bushing 11 position is provided with oblique pin 4, on steel bushing 11, correspondence has pin hole, prestressed reinforcement 5 is installed with in pin hole, prestressed reinforcement 5 is strained and fixed by ground tackle 6 at two pairs of corner nodes 1.
Further, described node 1 chooses T-shaped as shown in Figure 2 or crisscross joint as shown in Figure 3 according to actual needs.
Further, described steel bushing 11 is connected for weld with L-type steel 12, and Type of Welding is four limit weld all arounds.
Further, as shown in Figure 5, described ground tackle 6 comprises as shown in Figure 6, has the anchor plate 61 of corresponding reinforced hole, the tubaeform anchor slab 62 be socketed with anchor plate 61, and in anchor slab 62, corresponding reinforced hole is provided with the fixture 63 for clamping reinforcing bar.
Further, described ground tackle meets " use for tendon ground tackle, fixture and connector application technology code " (JGJ85-2002) requirement.
Further, described prestressed reinforcement stretch-draw scope is no more than 30% of prestressed reinforcement maximum flexibility displacement.
Operating principle of the present invention is:
The present invention, by transforming post and beam wood frame construction, by additional prestressing reinforcing bar in the frame, increases the rigidity of framework entirety, adds the stability of structure, solve the shortcoming that beam-post wood frame framework lateral deformation stiffness is less.Belfry form is as Fig. 1, and frame joint form is as Fig. 2.Post and node steel bushing reserve the hole (concrete form and angle are determined according to frame size) wearing prestressed reinforcement and pin.
In practical structures, first structure is assembled, design structures with semi-rigid joints; The levels frame joint central crossbar of mounted structure is arranged prestressed reinforcement, as the form identified in Fig. 1.The hole wearing prestressed reinforcement and pin should be reserved in advance in post, require that prestressed reinforcement should through the center of node; Post stretching technology is used to carry out stretch-draw to prestressed reinforcement; Be fixed with ground tackle and fixture after stretch-draw to target length and finally complete installation.
The lateral displacement that structure produces under seismic load and wind action, it is 1/30 that Code for design of timber structures requires the large shake lower moulding stage to be story drift.Suppose that the height of framework is H, span is L, then the sidesway that framework produces is H/30.The design maximum tensile elongation calculating prestressed reinforcement is
determining the internal force size produced when producing H/30 according to selecting the material of wooden construction, size and size, selecting suitable prestressed reinforcement type and the area of reinforcement; Post stretching is adopted to carry out stretch-draw to prestressed reinforcement.
According to story height H and the span L of framework, pre-establish wooden construction beam, post, L-type steel and steel bushing, and the particular location in reserved bolt hole and prestressed reinforcement hole and size on it, determine required prestressed reinforcement, pin (; According to ground tackle, fixture and bolt in " use for tendon ground tackle, fixture and connector application technology code " (JGJ85-2002).
Nodes of the present invention, L-type plate and steel bushing be linked as welding, Type of Welding is four limit weld all arounds, and welds in strict accordance with code requirement during welding; Beam column and node can be assembled according to Fig. 2 and Fig. 3 interior joint form by the present invention in actual use, are finally assembled into the frame form of Fig. 1.The framework assembled uses post stretching Shi Hanzhang, and anchoring is good.
The present invention, by arranging that the prestress wire of Shi Hanzhang supports in the general bamboo-wood structure framework of general steel-wooden combined joint connection, improves the lateral deformation stiffness of structure.When structure is at outside seismic load or wind action, there is certain lateral displacement in structure, makes prestressed reinforcement produce certain stretching at its elastic stage, and making prestressing force increase the restoring force producing a certain size, is structure reinstatement rapidly; And under the effect of energy dissipation node, be that Structural Energy Dissipation ability increases, the repeated action of additional restoring force, improves the energy efficiency of structure, makes structure can better play a role under earthquake or wind action.
The invention discloses a kind of novel beam-post wood frame frame form, comprise a kind of energy dissipating structures with semi-rigid joints, wooden construction beam column, prestressed reinforcement and ground tackle thereof and fixture.It is characterized in that, by design bean column node form, described wooden construction beam column being linked; Bored a hole by the Covered with Angles sleeve at wooden construction post and described node, prestressed reinforcement is applied in described framework also fixing, post stretching applies a certain size prestressing force to prestressed reinforcement, is fixed reinforcing bar with described ground tackle and fixture, ensures the stability of framework after integral installation.The framework cost of this form is low, superior performance, easy construction, and solve the less problem of general wooden construction framework lateral resisting, increase lateral deformation stiffness significantly, also under prestressed effect can rapidly recover original-pack after making framework produce certain relative storey displacement simultaneously, strengthen the stability of structure.
The above, be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, and any change of expecting without creative work or replacement, all should be encompassed within protection scope of the present invention.Therefore, the protection domain that protection scope of the present invention should limit with claims is as the criterion.
Claims (5)
1. a post-stressed bamboo-wood structure framework, comprise the bamboo-wood structure crossbeam and column that are connected by node, it is characterized in that, described node comprises and is enclosed within steel bushing on column and the L-type steel affixed with steel bushing, steel bushing is fixed by the bolt and column being arranged on its corner, L-type steel another side is fixed by bolt and beam-end, described column steel bushing position is provided with oblique pin, on steel bushing, correspondence has pin hole, be installed with prestressed reinforcement in pin hole, prestressed reinforcement is strained and fixed by ground tackle at two pairs of corner nodes.
2. post-stressed bamboo-wood structure framework according to claim 1, it is characterized in that, described node chooses T-shaped or crisscross joint according to actual needs.
3. post-stressed bamboo-wood structure framework according to claim 1, it is characterized in that, described ground tackle comprises the anchor plate having corresponding reinforced hole, the tubaeform anchor slab be socketed with anchor plate, and in anchor slab, corresponding reinforced hole is provided with the fixture for clamping reinforcing bar.
4. post-stressed bamboo-wood structure framework according to claim 1, is characterized in that, described prestressed reinforcement stretch-draw scope is no more than 30% of prestressed reinforcement maximum flexibility displacement.
5. post-stressed bamboo-wood structure framework according to claim 1, is characterized in that, described steel bushing and L-type steel lead to and connect as welding, and Type of Welding is four limit weld all arounds.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410252117.9A CN104032832B (en) | 2014-06-09 | 2014-06-09 | A kind of post-stressed bamboo-wood structure framework |
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| CN201410252117.9A CN104032832B (en) | 2014-06-09 | 2014-06-09 | A kind of post-stressed bamboo-wood structure framework |
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| CN104032832A CN104032832A (en) | 2014-09-10 |
| CN104032832B true CN104032832B (en) | 2016-04-20 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104631644B (en) * | 2015-01-09 | 2017-05-10 | 上海大学 | Connection node structure |
| MX2015001287A (en) | 2015-01-28 | 2016-01-21 | Kaltia Consultoria Y Proyectos S A De C V | Prefabricated system for slabs and roofs using structural bamboo. |
| CN106320735B (en) * | 2016-10-28 | 2018-10-30 | 福州大学 | A kind of prestressing force applied to timber structure frame consolidates inclined structure and its construction method |
| CN106988421A (en) * | 2017-05-23 | 2017-07-28 | 同济大学建筑设计研究院(集团)有限公司 | A kind of timber structure connecting node |
| CN110644619B (en) | 2019-09-21 | 2020-10-09 | 青岛理工大学 | Assembly type limiting reinforced steel-wood frosted sleeve combined node |
| CN110761442A (en) * | 2019-11-18 | 2020-02-07 | 南京林业大学 | Assembled bamboo shear force wall |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10237950A (en) * | 1997-02-27 | 1998-09-08 | Kenjiro Ogata | Wooden brace |
| JP3035247B2 (en) * | 1997-04-26 | 2000-04-24 | 武義 平野 | Frame structure of wooden building |
| JP2004239038A (en) * | 2003-02-05 | 2004-08-26 | Kawanaka Ryotaro | Earthquake resistant reinforcing construction method of wooden house |
| JP2005036625A (en) * | 2003-06-24 | 2005-02-10 | Shigeru Iketani | Box-type bracing hardware for wooden building, and bearing wall using box-type bracing hardware |
| JP4143482B2 (en) * | 2003-06-25 | 2008-09-03 | 株式会社 ウエハラ | Seismic reinforcement structure |
| CN201306007Y (en) * | 2008-11-28 | 2009-09-09 | 中国建筑土木建设有限公司 | High-speed rail 900-ton box girder prestress tensioning frame |
| CN101457549B (en) * | 2008-12-29 | 2010-07-07 | 南京林业大学 | Wood (bamboo) frame construction energy dissipating and damping node |
| CN203200920U (en) * | 2013-03-05 | 2013-09-18 | 扬州工业职业技术学院 | Connection of beam column node of recombined bamboo frame structure |
| CN103276804B (en) * | 2013-06-10 | 2015-08-26 | 北京工业大学 | A kind of industrialization assembling hetermorphiscal column steel work prestressing force center support system |
| CN203430085U (en) * | 2013-08-28 | 2014-02-12 | 云南汇丰建设投资集团有限公司 | Historic building structure using steel frame wood structure |
| CN103711227B (en) * | 2014-01-14 | 2015-12-30 | 南京林业大学 | Metal flexing type bamboo (wood) Damping for Frame Structure node |
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Application publication date: 20140910 Assignee: JIANGSU FORCESET VIBRATION CONTROL TECHNOLOGY Co.,Ltd. Assignor: Nanjing Forestry University Contract record no.: 2018320000425 Denomination of invention: Post-tensioning method prestress bamboo-wood framework Granted publication date: 20160420 License type: Common License Record date: 20181221 Application publication date: 20140910 Assignee: NANJING BAIXISI BUILDING TECHNOLOGY CO.,LTD. Assignor: Nanjing Forestry University Contract record no.: 2018320000424 Denomination of invention: Post-tensioning method prestress bamboo-wood framework Granted publication date: 20160420 License type: Common License Record date: 20181221 |
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Application publication date: 20140910 Assignee: NANJING BOKE NEW MATERIALS INDUSTRY RESEARCH INSTITUTE Co.,Ltd. Assignor: Nanjing Forestry University Contract record no.: X2019320000283 Denomination of invention: Post-tensioning method prestress bamboo-wood framework Granted publication date: 20160420 License type: Common License Record date: 20191119 |
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Effective date of registration: 20200630 Address after: Room 603, building 4, dadihaoting community, No.117, Shimenkan, Qinhuai District, Nanjing City, Jiangsu Province, 210000 Patentee after: Lu Fengyong Address before: Longpan road Xuanwu District of Nanjing city of Jiangsu Province, No. 159 221000 Patentee before: NANJING FORESTRY University |
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