CN103266666A - Bamboo structure prestress conversion connector - Google Patents
Bamboo structure prestress conversion connector Download PDFInfo
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- CN103266666A CN103266666A CN2013101856221A CN201310185622A CN103266666A CN 103266666 A CN103266666 A CN 103266666A CN 2013101856221 A CN2013101856221 A CN 2013101856221A CN 201310185622 A CN201310185622 A CN 201310185622A CN 103266666 A CN103266666 A CN 103266666A
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Abstract
The invention relates to a bamboo structure prestress conversion connector. The bamboo structure prestress conversion connector comprises a round casing tube, a connector body, a wedge-shaped inner casing tube and a wedge-shaped expansion rod, wherein the wedge-shaped inner casing tube and the wedge-shaped expansion rod are arranged inside the round casing tube; one end of the round casing tube is a closed end, the other end of the round casing tube is an open end, and the center of the closed end is provided with an expansion rod driving bolt which extends towards the open end; the outer diameter of the wedge-shaped inner casing tube is uniform, the inner diameter of the wedge-shaped inner casing tube is variable, and the wall thickness of the wedge-shaped inner casing tube is increased continuously in the axial direction of the wedge-shaped inner casing tube to form a wedge shape; the wedge-shaped expansion rod is set as a wedge-shaped round rod piece with variable cross sections and arranged inside the wedge-shaped inner casing tube; and the gradient of the inner surface of the wedge-shaped inner casing tube is identical to that of the outer surface of the wedge-shaped expansion rod, and the center of the wedge-shaped expansion rod is provided with a bolt hole matched with the expansion rod driving bolt. The bamboo structure prestress conversion connector is easy to process and manufacture, is rapid in installation due to the fact that no concrete materials need to be poured, can achieve a plug-and-play installation, is convenient to assemble and disassemble and recyclable, cannot generate waste and can facilitate environmental protection.
Description
Technical field
The invention belongs to building engineering field, relate to a kind of bamboo structure prestressing force crossover sub.
Background technology
Bamboo wood is a kind of natural green recyclable materials comparatively widely that distributes on the earth, has higher specific strength and advantages such as specific stiffness and pliability.The bamboo timber resource of China is very abundant, be widely used in the various aspects of industrial and agricultural production and life for a long time, particularly after the 2010 World Fair, various circles of society pay attention to the sustainable development of low-carbon environment-friendly more, how people begin one's study again this ancient material application in the modern architecture field, make it shine the new youth again.
In order to make bamboo wood can be widely used in the modern architecture field more, one of its key point is the connectivity problem that how to solve between the bamboo wood.Because the uncontrollability of bamboo wood growth course has determined the scrambling of its bore, wall thickness uniform section physical dimension, bamboo wood can not have good dimensional stability by picture through the shaped steel that manually manufacturing is produced.Therefore, in the productive life in 1,100, people adopt modes such as colligation, the tenon fourth of the twelve Earthly Branches, bolt, sleeve that bamboo wood is connected always in the past, and bonding strength and rigidity are difficult to be protected, thereby directly have influence on bamboo structure intensity, rigidity and stability, restricted the application of bamboo wood.
Notice of authorization number is CN 2761727, name is called the Chinese patent literature of " the former bamboo structure node that is used for Dai's bamboo tower " and has introduced for former bamboo structure joint structure commonly used, wherein yi word pattern, T type, X type, L type node etc. are by the complete node that runs through of one or more former bamboo, the suspension column structure adopts metal rim of a cup concrete perfusion mode that node is strengthened, although the place has increased construction measures such as bolt at node, the rigidity that connects and intensity are also unreliable; Notice of authorization CN 2021171176U, it number is CN202023258U that name is called " a kind of bamboo structure connected node " and notice of authorization, name is called and discloses two kinds in the Chinese patent literature of " a kind of bamboo structure bolt sphere connected node " respectively and be used for the steel nodes that bamboo structure connects, its principal character be the steel node with bamboo wood between adopt embedded bar to add the concrete perfusion mode be connected.The problem that this ways of connecting exists is: the adhesion strength between concrete and the bamboo wood is very low, relative slip can take place between the two, can't transmit axial force by concrete, therefore in most of the cases, axial force is in fact mainly transmitted between bamboo wood and stirrup by the cross reinforcing rib, contact point at bamboo wood and stirrup can produce the stress concentration phenomenon, connect the load size that can transmit depend on crushing strength between cross reinforcing rib and the bamboo wood fully, the anti-splitting ability of bamboo wood, the contact point place can destroy prior to bamboo wood, can not give full play to the supporting capacity of bamboo wood.
Because the unreliability that connects, existing structural analysis theory and finite element method and laboratory facilities can not in depth be applied in the analytical calculation of bamboo structure.
Because the variety of problems that bamboo structure connection aspect exists, the range of application of bamboo structure has been received very big restriction, generally is mainly used in the not high provisional building structure of importance or manufactures sheet material.And ball node and plate node that the steel structure net rack of widely applying at present and truss adopt are a kind of very ripe joint forms, if bamboo wood can be interconnected by ball node or plate node, form the bamboo structure of steel node, be bound to greatly promote bamboo wood in the application of building engineering field.The key that addresses this problem is the crossover sub that finds between a kind of bamboo wood and the steel node, and can make its bonding strength and rigidity all be higher than bamboo wood self strength and stiffness make.
Summary of the invention
In order to overcome above-mentioned defective of the prior art, the invention provides a kind of installation simple, connect reliable bamboo structure prestressing force crossover sub.
In order to realize the foregoing invention purpose, technical scheme of the present invention is: a kind of bamboo structure prestressing force crossover sub, comprise circular sleeve and connector, also comprise the wedge shape inner sleeve and the wedge shape expansion rod that are positioned at the garden sleeve pipe, described circular sleeve one end is made as blind end, the other end is made as openend, the center of described blind end is provided with the expansion rod that extends to openend and drives bolt, the external diameter of wedge shape inner sleeve is equal diameter, internal diameter is for becoming diameter, its wall thickness increases continuously along its axis direction and is wedge shape, described wedge shape expansion rod is made as the circular rod member in Wedging cross section, and be positioned at the wedge shape inner sleeve, the inner surface gradient of described wedge shape inner sleeve is identical with the wedge shape expansion rod external surface gradient, and described wedge shape expansion rod center is provided with the bolt hole that drives the bolt coupling with expansion rod.
Described circular sleeve is nested in the outer wall of bamboo wood end, can around the outer wall of bamboo wood, play the effect of " pipe collar ", the restriction bamboo wood is along the distortion of its wall thickness direction, expansion rod on wedge shape expansion rod and the round buss drives bolt and cooperates, when the described circular sleeve of rotation, can drive expansion rod driving bolt screws in the bolt hole of wedge shape expansion rod, thereby driving the wedge shape expansion rod moves along its axis direction, the wedge shape expansion rod moves vertically and embeds in the wedge shape inner sleeve, wedge shape inner sleeve diameter is increased, described wedge shape inner sleeve is positioned at bamboo wood inside, increase with wedge shape inner sleeve diameter, extruding bamboo wood inwall, fit in wedge shape inner sleeve and the garden sleeve pipe makes bamboo wood closely be connected with this crossover sub.
Preferably, described connector comprises conehead, bolt sleeve, shank of bolt and pin, described conehead is made up of conically shaped and shrouding, shrouding is positioned at the conically shaped top, the conically shaped bottom connects the circular sleeve blind end, described shrouding is provided with a circular hole, shank of bolt is arranged in circular hole, described shank of bolt comprises head and bar portion, head is positioned at conically shaped, bar portion is positioned at the conically shaped outside, all offers chute on bolt sleeve and the shank of bolt, and described pin interconnects bolt sleeve and shank of bolt by chute.
Preferably, described wedge shape inner sleeve has several otch parallel with its axis along circumference, and the length of described otch is less than the length of wedge shape inner sleeve.
At the wedge shape inner sleeve otch is set, makes following easier the expanding of wedge shape expansion rod extruding under the wedge shape inner sleeve.
Preferably, described connector is made as junction plate, and described junction plate one end is connected with circular sleeve, and the other end is provided with groove.
Preferably, described wedge shape expansion rod comprises wedge shape urceolus and circular inner tube, and wedge shape urceolus and circular inner tube directly are provided with the cross reinforcing rib.The wedge shape expansion rod adopts the open-core type structure to have from heavy and light, moderate, the good characteristics of bamboo wood cross section compliance of rigidity
Preferably, described wedge shape expansion rod is the integral type entity structure.
Preferably, described circular sleeve is provided with some screws, and trip bolt is installed on the screw.
The invention has the beneficial effects as follows:
(1) the wedge shape expansion rod can make the wedge shape inner sleeve expand outside circumferential, thereby makes the bamboo wood between circular sleeve and wedge shape inner sleeve be subjected to very big extruding force.Consider the non-circular geometrical feature of bamboo material transversal surface, if in the end of bamboo wood along the otch parallel with the bamboo wood axis of circumferentially offering some, then can make to contact more evenly between circular sleeve and the bamboo wood, connect more firm;
(2) firm and reliable connection can not produce because of junction stress concentration phenomenon, can be equably the internal force of bamboo wood be delivered on the node by circular sleeve.Also make existing structural analysis theory, finite element method and experimental technique can be applied in the analytical calculation of bamboo structure, can expand the application of bamboo wood widely;
(3) described crossover sub processing and fabricating is simple, owing to without the concrete perfusion material, so install fast, can realize plug and play; The while convenient disassembly, recyclable recycling can not produce discarded object, is conducive to environmental protection;
(4) described crossover sub can adapt to the bamboo wood of various sectional dimensions and shape, applied range.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention 1;
Fig. 2 is the decomposition texture schematic diagram of the embodiment of the invention 1;
Fig. 3 is Figure 1A-A position sectional view;
Fig. 4 is the assembling process schematic diagram of the embodiment of the invention 1;
Fig. 5 is the bamboo structure prestressing force crossover sub of the embodiment of the invention 1 and the connection diagram between the ball node;
Fig. 6 is the decomposition texture schematic diagram of the embodiment of the invention 2;
Fig. 7 is the assembling process schematic diagram of the embodiment of the invention 2;
Fig. 8 is the bamboo structure prestressing force crossover sub of the embodiment of the invention 2 and the connection diagram between the truss gusset plate.
The specific embodiment
The present invention will be further described below in conjunction with concrete the drawings and specific embodiments.
Embodiment 1
As Figure 1-3, the bamboo structure prestressing force crossover sub of present embodiment comprises: circular sleeve 1, wedge shape inner sleeve 3, wedge shape expansion rod 4, trip bolt 5, expansion rod drive bolt 7 and connector, described connector comprises conehead, shank of bolt 10, bolt sleeve 11 and pin 12, and described conehead comprises conically shaped 8, shrouding 9.
Circular sleeve 1 one ends are made as blind end, the other end is made as openend, the center of described blind end is provided with the expansion rod that extends to openend and drives bolt 7, the external diameter of wedge shape inner sleeve 3 is equal diameter, internal diameter is for becoming diameter, its wall thickness increases continuously along its axis direction and is wedge shape, described wedge shape expansion rod 4 is made as the circular rod member in Wedging cross section, and be positioned at the wedge shape inner sleeve, the inner surface gradient of described wedge shape inner sleeve 3 is identical with the wedge shape expansion rod 4 external surface gradients, and described wedge shape expansion rod 4 centers are provided with the bolt hole that drives bolt 7 couplings with expansion rod.
Circular sleeve 1 is nested in the outer wall of bamboo wood 2 ends, can around the outer wall of bamboo wood 2, play the effect of " pipe collar ", restriction bamboo wood 2 is along the distortion of its wall thickness direction, expansion rod on wedge shape expansion rod 4 and the round buss 1 drives bolt 7 and cooperates, when the described circular sleeve 1 of rotation, can drive expansion rod driving bolt 7 screws in the bolt hole of wedge shape expansion rods 4, thereby driving wedge shape expansion rod 4 moves along its axis direction, wedge shape expansion rod 4 moves vertically and embeds in the wedge shape inner sleeve 3, wedge shape inner sleeve 3 diameters are increased, wedge shape inner sleeve 3 is positioned at bamboo wood 2 inside, increase with wedge shape inner sleeve 3 diameters, extruding bamboo wood 2 inwalls, fit in wedge shape inner sleeve 3 and the garden sleeve pipe 1 makes bamboo wood 2 closely be connected with this crossover sub.
Shrouding 9 is positioned at conically shaped 8 tops, conically shaped 8 bottoms connect circular sleeve 1 blind end, be provided with circular hole in the middle of the described shrouding 9, shank of bolt 10 is arranged in circular hole, described shank of bolt 10 comprises head and bar portion, and head is positioned at conically shaped 8, and bar portion is positioned at conically shaped 8 outsides, all offer chute on bolt sleeve 11 and the shank of bolt 10, described pin 12 interconnects bolt sleeve 11 and shank of bolt 10 by chute.
Wedge shape inner sleeve 3 has several otch parallel with its axis along circumference, and the length of described otch is less than the length of wedge shape inner sleeve 3.At the wedge shape inner sleeve otch is set, makes following easier the expanding of wedge shape expansion rod extruding under the wedge shape inner sleeve.
Wedge shape expansion rod 4 comprises wedge shape urceolus and circular inner tube, and wedge shape urceolus and circular inner tube directly are provided with the cross reinforcing rib.Wedge shape expansion rod 4 adopts the open-core type structure to have from heavy and light, moderate, the good characteristics of bamboo wood cross section compliance of rigidity.According to the actual requirements, wedge shape expansion rod 4 also can adopt the integral type entity structure.Described circular sleeve 1 is provided with some screws, and trip bolt 5 is installed on the screw.Trip bolt 5 is the secure components that are used for fixing described circular sleeve and bamboo wood after crossover sub installs, every group comprises two trip bolts, at interval angle of circumference is generally 90 ° between every group, and the diameter of screw and length are looked concrete conditions such as the sectional dimension of bamboo wood and wall thickness and determined.
As shown in Figure 4, the number of assembling steps of present embodiment is:
(a) shank of bolt 10 is inserted the hole of shrouding 9 from opening one side of conehead, in the shrouding outside of conehead bolt sleeve 11 is enclosed within on the shank of bolt 10, and fixing with pin 12, assemble the conehead part;
(b) conehead that assembles partly is welded on the circular sleeve 1;
(c) wedge shape inner sleeve 3 being enclosed within the expansion rod that is fixed on the circular sleeve 1 drives on the bolt 7;
(d) wedge shape expansion rod 4 is inserted in the wedge shape inner sleeve 3, rotational circle sleeve pipe 1 drives expansion rod driving bolt 7 and screws in the bolt hole of wedge shape expansion rods 4, assembles crossover sub;
(e) smear resin glue 6 in the end of bamboo wood 2, the crossover sub that assembles is nested in the end of bamboo wood 2, continue rotational circle sleeve pipe 1 then along clockwise direction, firmly be connected with bamboo wood 2 up to crossover sub, trip bolt 5 is installed.
As shown in Figure 5, the bamboo wood 2 that installs crossover sub can adopt the ball node connected mode of generally using in the structural steelwork to form various space structures.With the hexagon bolt sleeve 11 of hex bolts spanner rotation crossover sub end, drive shank of bolt 10 and screw in the bolt hole of bolted spherical node 13, compress until hexagon sleeve 11 and bolted spherical node 13.Do the time spent when bamboo wood bears pulling force, the pulling force of bamboo wood 2 is passed to bolted spherical node 13 by shank of bolt 10; When bamboo wood bore pressure, the pressure of bamboo wood 2 was passed to bolted spherical node 13 by bolt sleeve 11.
As Fig. 6, the distinguishing characteristics of present embodiment and embodiment 1 is: described connector is made as junction plate 14, and described junction plate 14 1 ends are connected with circular sleeve 1, and the other end is provided with groove.It is identical with embodiment 1 that other do not state part.The connector of present embodiment is used for being connected with truss gusset plate, and the connector of embodiment 1 is used for being connected with bolted spherical node.
As Fig. 7, the number of assembling steps of present embodiment is:
(a) junction plate 14 is welded on the circular sleeve 1;
(b) wedge shape inner sleeve 3 being enclosed within the expansion rod that is fixed on the circular sleeve 1 drives on the bolt 7;
(c) wedge shape expansion rod 4 is inserted in the wedge shape inner sleeve 3, rotational circle sleeve pipe 1 drives expansion rod driving bolt 7 and screws in the bolt hole of wedge shape expansion rods 4, assembles crossover sub;
(d) crossover sub that assembles is nested in the end of the bamboo wood 2 of smearing resin glue 6, continues rotational circle sleeve pipe 1 then along clockwise direction, firmly be connected with bamboo wood 2 up to crossover sub, trip bolt 5 is installed.
As shown in Figure 8, the junction plate 14 that will have groove is embedded on the truss gusset plate 15, and groove can form truss structural with 15 welding of junction plate 14 and truss gusset plate, and the internal force of member is by junction plate 14 junctions and truss gusset plate 15 and mutual balances.
Claims (7)
1. bamboo structure prestressing force crossover sub, comprise circular sleeve and connector, it is characterized in that: also comprise the wedge shape inner sleeve and the wedge shape expansion rod that are positioned at the garden sleeve pipe, described circular sleeve one end is made as blind end, the other end is made as openend, the center of described blind end is provided with the expansion rod that extends to openend and drives bolt, the external diameter of wedge shape inner sleeve is equal diameter, internal diameter is for becoming diameter, its wall thickness increases continuously along its axis direction and is wedge shape, described wedge shape expansion rod is made as the circular rod member in Wedging cross section, and be positioned at the wedge shape inner sleeve, the inner surface gradient of described wedge shape inner sleeve is identical with the wedge shape expansion rod external surface gradient, and described wedge shape expansion rod center is provided with the bolt hole that drives the bolt coupling with expansion rod.
2. bamboo structure prestressing force crossover sub according to claim 1, it is characterized in that: described connector comprises conehead, bolt sleeve, shank of bolt and pin, described conehead is made up of conically shaped and shrouding, shrouding is positioned at the conically shaped top, the conically shaped bottom connects the circular sleeve blind end, described shrouding is provided with a circular hole, shank of bolt is arranged in circular hole, described shank of bolt comprises head and bar portion, head is positioned at conically shaped, bar portion is positioned at the conically shaped outside, all offers chute on bolt sleeve and the shank of bolt, and described pin interconnects bolt sleeve and shank of bolt by chute.
3. bamboo structure prestressing force crossover sub according to claim 1, it is characterized in that: described wedge shape inner sleeve has several otch parallel with its axis along circumference, and the length of described otch is less than the length of wedge shape inner sleeve.
4. bamboo structure prestressing force crossover sub according to claim 1, it is characterized in that: described connector is made as junction plate, and described junction plate one end is connected with circular sleeve, and the other end is provided with groove.
5. bamboo structure prestressing force crossover sub according to claim 1, it is characterized in that: described wedge shape expansion rod comprises wedge shape urceolus and circular inner tube, and wedge shape urceolus and circular inner tube directly are provided with the cross reinforcing rib.
6. bamboo structure prestressing force crossover sub according to claim 1, it is characterized in that: described wedge shape expansion rod is the integral type entity structure.
7. bamboo structure prestressing force crossover sub according to claim 1, it is characterized in that: described circular sleeve is provided with some screws, and trip bolt is installed on the screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310185622.1A CN103266666B (en) | 2013-05-20 | 2013-05-20 | Bamboo structure prestress conversion connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310185622.1A CN103266666B (en) | 2013-05-20 | 2013-05-20 | Bamboo structure prestress conversion connector |
Publications (2)
| Publication Number | Publication Date |
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| CN103266666A true CN103266666A (en) | 2013-08-28 |
| CN103266666B CN103266666B (en) | 2015-07-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310185622.1A Expired - Fee Related CN103266666B (en) | 2013-05-20 | 2013-05-20 | Bamboo structure prestress conversion connector |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08270140A (en) * | 1995-03-30 | 1996-10-15 | Asahi Glass Co Ltd | Truss structure and tension chord member |
| CN101270605A (en) * | 2008-04-18 | 2008-09-24 | 湖南大学 | Double-sleeve prestressed reinforcing steel casing tube connector and its casing tube connection construction method |
| CN101408039A (en) * | 2008-11-18 | 2009-04-15 | 昆明理工大学 | Bamboo-wood mixed structure of house architecture |
| CN101929201A (en) * | 2010-07-28 | 2010-12-29 | 罗轶 | Compound foamed bamboo connection structure |
| CN201884845U (en) * | 2010-12-07 | 2011-06-29 | 谭海英 | Quick connector for assembly of pipeline flexible connection |
| CN203284890U (en) * | 2013-05-20 | 2013-11-13 | 浙江科技学院 | Bamboo structure prestress changeover connector |
-
2013
- 2013-05-20 CN CN201310185622.1A patent/CN103266666B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08270140A (en) * | 1995-03-30 | 1996-10-15 | Asahi Glass Co Ltd | Truss structure and tension chord member |
| CN101270605A (en) * | 2008-04-18 | 2008-09-24 | 湖南大学 | Double-sleeve prestressed reinforcing steel casing tube connector and its casing tube connection construction method |
| CN101408039A (en) * | 2008-11-18 | 2009-04-15 | 昆明理工大学 | Bamboo-wood mixed structure of house architecture |
| CN101929201A (en) * | 2010-07-28 | 2010-12-29 | 罗轶 | Compound foamed bamboo connection structure |
| CN201884845U (en) * | 2010-12-07 | 2011-06-29 | 谭海英 | Quick connector for assembly of pipeline flexible connection |
| CN203284890U (en) * | 2013-05-20 | 2013-11-13 | 浙江科技学院 | Bamboo structure prestress changeover connector |
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| CN103266666B (en) | 2015-07-01 |
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Inventor after: Wen Xianmin Inventor after: Zhang Yunlian Inventor after: Yang Jianhui Inventor after: Jiang Luzhen Inventor before: Wen Xianmin Inventor before: Zhang Yunlian Inventor before: Yang Jianhui |
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Free format text: CORRECT: INVENTOR; FROM: WEN XIANMIN ZHANG YUNLIAN YANG JIANHUI TO: WEN XIANMIN ZHANG YUNLIAN YANG JIANHUI JIANG LUZHEN |
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