CN204456561U - A kind of Prestressed Continuous bamboo wooden frame promotes device - Google Patents
A kind of Prestressed Continuous bamboo wooden frame promotes device Download PDFInfo
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- CN204456561U CN204456561U CN201520130834.4U CN201520130834U CN204456561U CN 204456561 U CN204456561 U CN 204456561U CN 201520130834 U CN201520130834 U CN 201520130834U CN 204456561 U CN204456561 U CN 204456561U
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Abstract
A kind of Prestressed Continuous bamboo wooden frame promotes device, relates to a kind of continuous beam.The utility model is many in freely-supported form in order to solve existing cemented bamboo, wooden frame, and destroy in fragility, the strength of materials can not be fully utilized, and the problem that distortion is larger.The two ends of bamboo and wood material (1) of the present utility model are fixed with the U-shaped connector in end (11), and adjacent two bamboo and wood materials (1) are connected by the U-shaped connector in end (11); Integration anchoring unit (5) is fixed on the top board of the U-shaped connector in end (11), the lower surface of bamboo and wood material (1) is provided with and turns to pressure bearing wheels (2), prestress wire (3) is distributed in both sides before and after bamboo and wood material (1), and form broken line by turning to pressure bearing wheels (2) to control line style, and be anchored on integrated anchoring unit (5).The utility model improves the utilization speed of modern bamboo-wood structure in engineering, achieves effective popularization of bamboo-wood structure.
Description
Technical field
The utility model relates to a kind of continuous beam, is specifically related to a kind of Prestressed Continuous bamboo wooden frame, belongs to field of civil engineering.
Background technology
Research prestressing force cemented bamboo wooden construction is significant: " National Program for Medium-to Long-term Scientific and Technological Development (2006-2020) " the 4th 20 articles points out, " primary study exploitation is efficient, low cost, the cultivation of extensive agricultural-forestry biomass, collect and transform key technology ", prestressing force cemented bamboo wood beam string Structural Floor System is the another kind of important form of assembled architecture, its research, demonstration and popularization, belong to the efficiency utilization to China's agriculture and forestry biomass materials, with the Committee of Development and Reform, " green building action scheme " spirit that firmly portion of building advocates energetically matches.The house built by prestressing force cemented bamboo wood beam string floor system, not only low-carbon environment-friendly, can sustainable development, and profit is large, surcharge is high, building trade and bamboo and wood material relevant industries can be guided to efficient, healthy future development, there is very great social effect and economic worth.(1) bamboo and wood structural building environmental protection, excellent performance, sustainable development
China is in industrialization, urbanization, informationization and the agricultural modernization fast-developing period of history, and the pressure of population, resource, environment highlights day by day.According to statistics, in the building of China, be non-energy saving building more than 80%, the power consumption level of its per unit area is 2 ~ 3 times of developed country, and building trade energy consumption accounts for 1/3 of social total energy consumption.On the other hand, the industry of the traditional construction material such as steel, concrete has unsustainable property, and ore resource used is day by day exhausted, non-renewable.For limestone, China's recoverable reserves is 79,000,000,000 tons, by current cement annual production 2200000000 tons calculating, also can adopt more than 30 year.Under this overall background, develop renewable building materials, realize green building, become the inexorable trend of current building structure development, the important leverage of Ye Shi China sustainable economic development.
Bamboo wood and timber are natural resources, have recyclability, and can releasing oxygen in its growth course, environmental protect.Bamboo-wood structure house insulation is good, has the feature of energy-saving and emission-reduction, according to statistics, if replace concrete structure with wooden construction, in the construction phase, can save the energy of 45.24% and the water of 46.17%; The electric energy of 10.92% is saved in operational phase
[2].In addition, compared to steel and concrete, more easily process after bamboo timber-work is discarded, can be used as fuel, also can recycle as wood-based plate or paper raw material etc.As can be seen here, bamboo and wood structural building has the feature of low-carbon environment-friendly and sustainable development, and meeting national energy-saving and reduce discharging strategy and green building industry policy, is extremely potential building types.(2) bamboo and wood material combines the advantage of bamboo wood and timber, and intensity is high, good rigidity, is applicable to being used as structural wood
Bamboo and wood material refers to and bamboo wood and timber is carried out the composite board that combines and glued joint or square bar with identical or different element of construction form.Bamboo wood high for intensity is used for component surface by this material, and the timber being easy to process, for component inside, can give full play to the advantage of bi-material.
The bamboo and wood material processed by modern bonding technique, the length of component and sectional dimension do not limit by material natural size, can make full use of China's bamboo and wood forest resourceies.China's bamboo resource enriches, bamboo kind and bamboo grove area account for 1/4 of the world, reach 538.10 ten thousand hectares, bamboo wood output accounts for 1/2, occupy first of countries in the world, and along with the maturation of cemented bamboo, Recombined bamboo process technology, revolutionize in bamboo wood cylindrical empty, the shortcoming of use should not be processed, greatly expanded the scope of application of bamboo wood; In timber, the public woods area of Chinese people reaches 0.69 hundred million hectare, also occupies first place in the world.
Bamboo and wood material is used for having a large capacity and a wide range, in the building structure of high added value, the outlet of China's small dimension wood, material inferior can be solved, drive the development of bamboo wood secondary industry, create more job opportunity, produce great economic benefit.Meanwhile, as long as planning management is proper, science is cut down, and rationally reseed, demand can stimulate forest development, and then promotes greening, and environmental protect, produces great social benefit.
(3) common cemented bamboo, wooden frame are many in freely-supported form, and destroy in fragility, the strength of materials can not be fully utilized, and distortion is larger
Bamboo and wood material limits by raw material size and processing public good, and length does not generally reach the requirement of continuous beam, and in addition, the ability that bamboo and wood component banjo fixing butt jointing transmits moment of flexure is lower, causes node coupling stiffness not enough, and therefore, general wooden frame is mostly in freely-supported form.
Under general Uniform Load, common cemented bamboo, inscribed wooden slip strutbeam reach moment of flexure maximum value at spaning middle section, and from span centre to bearing, the moment of flexure that external load produces reduces gradually, and therefore, except spaning middle section, the strength of materials in other cross sections all can not be fully utilized.Cemented bamboo, inscribed wooden slip strutbeam are general first there is crack at tight side defective locations, and finally because Tensile strength is not enough, brittle fracture occurs, and now, the compressive strength of material not yet gives full play to.
Compare with continuous beam, the distortion of simply supported beam is much bigger, and the creep of bamboo and wood material, and can increase beam distortion further, impact uses.In Practical Project, the sectional dimension of a lot of bamboo and wood material, by Deformation control, more there are some researches show, cemented bamboo beam is approximately 1/5 of the ultimate bearing capacity by strength checking by the ultimate bearing capacity of deflection design, and the strength of materials fails to be fully used.Between existing continuous beam, normal U-shaped steel plate, the angle steel etc. of adopting are as power transmission unit, are linked to be entirety by bolt or screw with bamboo and wood material, and the ability of this connected mode transmission moment of flexure is lower, can only process during design by freely-supported.
In sum, urgently design a kind of Prestressed Continuous bamboo wooden frame and promote device, it will have important learning value and social effect.
Utility model content
The utility model is many in freely-supported form in order to solve cemented bamboo, wooden frame, destroy in fragility, the strength of materials can not be fully utilized, and the problem that distortion is larger, and then provide a kind of Prestressed Continuous bamboo wooden frame to promote device, prestressing technique is extended to continuous beam, Vierendeel girder from simply supported beam, and then forms prestressing force cemented bamboo wood Structural Floor System.
The utility model in order to solve the problems of the technologies described above taked technical scheme is:
A kind of Prestressed Continuous bamboo wooden frame described in the utility model is promoted device and is comprised bamboo and wood material, and the two ends of bamboo and wood material are fixed with the U-shaped connector in end, and adjacent two bamboo and wood materials are connected by the U-shaped connector in end; Integration anchoring unit is fixed on the top board of the U-shaped connector in end, the lower surface of bamboo and wood material is provided with and turns to pressure bearing wheels, prestress wire is distributed in both sides before and after bamboo and wood material, and forms broken line by turning to pressure bearing wheels to control line style, and is anchored on integrated anchoring unit.
Preferred: a kind of Prestressed Continuous bamboo wooden frame is promoted device and also comprised stiffener, and described stiffener is arranged on the both sides, front and back of bamboo and wood material, and stiffener is fixedly connected with the U-shaped connector in end.Setting like this, structural stability is strong.
Preferred: the floor length of the U-shaped connector in described end is greater than its top board length.Setting like this, line style needs, and structural stability is strong.
Preferred: described prestress wire twists a device Shi Hanzhang stretch-draw on bamboo and wood material by screw thread, screw thread is twisted a device and is comprised backing plate, tensioning screw rod and steering block, described backing plate is fixed on the bottom surface of bamboo and wood material, the upper end of tensioning screw rod is fixedly connected on backing plate, described steering block is connected on tensioning screw rod, steering block is processed with guide groove, and the stretch-draw point place of prestress wire embeds in guide groove.Setting like this, is convenient to the stretch-draw realizing steel strand, and fixing steel strand position, to wooden frame Shi Hanzhang, not only increases bearing capacity, strengthens girder span.
Preferred: the coating lubricating oil groove bottom surface of described backing plate being left 1mm.
The utility model compared with prior art has following effect:
Prestressing technique is extended to continuous beam, Vierendeel girder from simply supported beam by Prestressed Continuous bamboo wooden frame of the present utility model, and then forms prestressing force cemented bamboo wood Structural Floor System.
By a set of end connecting device researched and developed voluntarily, realize cemented bamboo, the Liang Liang of wooden construction connects, beam-to-column joint is connected with Liang Qiang, and by the globality between prestressing force reinforcement, and then form overall prefabricated PC cemented bamboo bimber stair structural system, tool has the following advantages:
1. by end connecting device and prestressing force, can connection stiffness be improved, realize just having connect or semi-rigid joint, change the Bending moment distribution of simply supported beam, from system, reach and make full use of material, the object of Reducing distortion;
2. Shi Hanzhang can reduce the shortterm deflection of cemented bamboo, wooden frame, and in use by regulating prestressed size, can reduce or eliminate creep to affect TERM DEFORMATION;
3. after Shi Hanzhang, bamboo wood and timber are press-bending state by simple bending condition conversion, can make full use of the compressive strength of bamboo wood and timber, save material;
4. the steel and wood composite component formed by prestressing force string technology, presstressed reinforcing steel tension, bamboo and wood material pressurized, drastically increases the ductility of component, thus improves the reliability of beam.
In sum, on the Research foundation of prestressing force cemented bamboo inscribed wooden slip strutbeam in early stage, by the end connecting device researched and developed voluntarily, prestressing technique is extended to continuous beam, Vierendeel girder, realize overall prefabricated PC cemented bamboo wood beam string Structural Floor System, material can be saved, increase span, controlling distortion, and realize the high-value-use of bamboo and wood materials, be a kind of reasonable stress, and be easy to the innovative floor system of popularization.Research of the present utility model has important learning value and social effect.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model Prestressed Continuous bamboo wooden frame;
Fig. 2 is Prestressed Continuous bamboo wooden frame end annexation schematic diagram;
Fig. 3 is the top view of Fig. 2;
Fig. 4 is the upward view of Fig. 2;
Fig. 5 is top layer beam-to-column joint schematic diagram;
Fig. 6 is non-top layer beam-to-column joint schematic diagram;
Fig. 7 is that Liang Qiang connects elevational schematic view;
Fig. 8 is the structural representation that screw thread twists a device;
Fig. 9 is the A-A sectional view of Fig. 8.
Detailed description of the invention
Elaborate the utility model with reference to the accompanying drawings preferred embodiment below.
Detailed description of the invention: a kind of Prestressed Continuous bamboo wooden frame of present embodiment is promoted device and comprised bamboo and wood material 1, and the two ends of bamboo and wood material 1 are fixed with the U-shaped connector 11 in end, and adjacent two bamboo and wood materials 1 are connected by the U-shaped connector 11 in end; Integration anchoring unit 5 is fixed on the top board of the U-shaped connector 11 in end, the lower surface of bamboo and wood material 1 is provided with and turns to pressure bearing wheels 2, prestress wire 3 is distributed in both sides before and after bamboo and wood material 1, and forms broken line by turning to pressure bearing wheels 2 to control line style, and is anchored on integrated anchoring unit 5.
A kind of Prestressed Continuous bamboo wooden frame is promoted device and is also comprised stiffener 4, and described stiffener 4 is arranged on the both sides, front and back of bamboo and wood material 1, and stiffener 4 is fixedly connected with the U-shaped connector 11 in end.As shown in Figure 2.
The floor length of the U-shaped connector 11 in described end is greater than its top board length.As shown in Fig. 2,3,4,5.
Described prestress wire 3 twists a device 6 Shi Hanzhang stretch-draw on bamboo and wood material 1 by screw thread, screw thread is twisted a device 6 and is comprised backing plate 7, tensioning screw rod 8 and steering block 9, described backing plate 7 is fixed on the bottom surface of bamboo and wood material 1, the upper end of tensioning screw rod 8 is fixedly connected on backing plate 7, described steering block 9 is connected on tensioning screw rod 8, steering block 9 is processed with guide groove 10, the stretch-draw point place of prestress wire 3 embeds in guide groove 10.As shown in Figure 8.
The bottom surface of described backing plate 7 is left the coating lubricating oil groove 12 of 1mm.As shown in Figure 9.
The U-shaped connector 11 in end independently will be linked to be entirety by bamboo and wood material, and forming building cover structure, is the critical component in whole system, and whether its switching performance is reliable, and whether power transmission is rationally clear and definite, will directly determine the integral working of building cover structure.Therefore, propose a kind of Liang Liang of comprising connection, beam-to-column joint and Liang Qiang and be connected to interior Novel end connecting connection parts, and combine with prestressing technique, effective raising connection stiffness, reliable delivery bending and shearing, being the basis forming prestressing force cemented bamboo wood beam string building cover structure, is also the key carrying out promoting.
The process forming a prestressing force cemented bamboo wood string continuous beam (as shown in Figure 1) is: first, the stiffener 4 bamboo and wood material of single span being placed in the U-shaped connector 11 in end and beam side is formed in groove, vertical hole is beaten in bamboo and wood material, and by the U-shaped connector 11 of bamboo and wood material and end being linked to be entirety to connecting bolt; Then, by the single beam of two built-in end connecting connection parts, by being linked as entirety to connecting bolt, form continuous beam.
Prestress wire 3 is distributed in beam side, by turning to pressure bearing wheels 2 to control line style, forming broken line, and being anchored on integrated anchoring unit 5.Integration anchoring unit 5 is connected as a single entity with the U-shaped connector 11 in end, to form from prestress wire to integrated anchoring unit the Path of Force Transfer of the U-shaped connector to end again.Because, the line style of prestress wire and the bending moment diagram of continuous beam match, this prestressing force string continuous beam stressed more reasonable, at middle support position, by prestress wire and end U-shaped connector top board tension, bamboo and wood material and end U-shaped connector base plate pressurized bears negative moment of backing plate.
During embody rule, except above-mentioned Liang Liang connects, also can form beam-to-column joint (as shown in Figure 5,6) and be connected with Liang Qiang (as shown in Figure 7).In the beam-to-column joint of intermediate layer, first two support angle steel are set under bean column node, and by being connected as a single entity to connecting bolt and post through pillar; Then, bamboo and wood material is inserted in the U-shaped connector in end, by being connected as a single entity to connecting bolt and support angle steel and U-shaped connector; Finally, by passing pillar to connecting bolt, beam and column of both sides being linked to be entirety, forming framework.
The exemplary illustration of present embodiment just to this patent, does not limit its protection domain, and those skilled in the art can also change, as long as no the Spirit Essence exceeding this patent, in the protection domain of this patent its local.
Claims (4)
1. a Prestressed Continuous bamboo wooden frame promotes device, it is characterized in that: comprise bamboo and wood material (1), the two ends of bamboo and wood material (1) are fixed with the U-shaped connector in end (11), and adjacent two bamboo and wood materials (1) are connected by the U-shaped connector in end (11); Integration anchoring unit (5) is fixed on the top board of the U-shaped connector in end (11), the lower surface of bamboo and wood material (1) is provided with and turns to pressure bearing wheels (2), prestress wire (3) is distributed in both sides before and after bamboo and wood material (1), and form broken line by turning to pressure bearing wheels (2) to control line style, and be anchored on integrated anchoring unit (5); The floor length of the U-shaped connector in described end (11) is greater than its top board length.
2. a kind of Prestressed Continuous bamboo wooden frame according to claim 1 promotes device, it is characterized in that: a kind of Prestressed Continuous bamboo wooden frame is promoted device and also comprised stiffener (4), described stiffener (4) is arranged on the both sides, front and back of bamboo and wood material (1), and stiffener (4) is fixedly connected with the U-shaped connector in end (11).
3. a kind of Prestressed Continuous bamboo wooden frame according to claim 1 promotes device, it is characterized in that: described prestress wire (3) twists device (6) Shi Hanzhang stretch-draw in bamboo by screw thread, on timber (1), screw thread is twisted a device (6) and is comprised backing plate (7), tensioning screw rod (8) and steering block (9), described backing plate (7) is fixed on bamboo, on the bottom surface of timber (1), the upper end of tensioning screw rod (8) is fixedly connected on backing plate (7), described steering block (9) is connected on tensioning screw rod (8), steering block (9) is processed with guide groove (10), the stretch-draw point place of prestress wire (3) embeds in guide groove (10).
4. a kind of Prestressed Continuous bamboo wooden frame according to claim 3 promotes device, it is characterized in that: the coating lubricating oil groove (12) bottom surface of described backing plate (7) being left 1mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520130834.4U CN204456561U (en) | 2015-03-06 | 2015-03-06 | A kind of Prestressed Continuous bamboo wooden frame promotes device |
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| CN201520130834.4U CN204456561U (en) | 2015-03-06 | 2015-03-06 | A kind of Prestressed Continuous bamboo wooden frame promotes device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110318557A (en) * | 2019-07-19 | 2019-10-11 | 江苏东南特种技术工程有限公司 | A kind of prefabricated concrete hollow slab reinforcing device and method |
| CN113216513A (en) * | 2021-05-26 | 2021-08-06 | 青岛腾远设计事务所有限公司 | Prefabricated prestressed reinforced concrete folded beam and construction method thereof |
-
2015
- 2015-03-06 CN CN201520130834.4U patent/CN204456561U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110318557A (en) * | 2019-07-19 | 2019-10-11 | 江苏东南特种技术工程有限公司 | A kind of prefabricated concrete hollow slab reinforcing device and method |
| CN110318557B (en) * | 2019-07-19 | 2023-12-19 | 江苏东南特种技术工程有限公司 | Prestressed concrete hollow slab reinforcing device and method |
| CN113216513A (en) * | 2021-05-26 | 2021-08-06 | 青岛腾远设计事务所有限公司 | Prefabricated prestressed reinforced concrete folded beam and construction method thereof |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150708 Termination date: 20200306 |