CN103015626B - Rod and multilayer boards combined T-shaped beam of bottom-chord built-in reinforcement steel bar and manufacturing method of T-shaped beam - Google Patents
Rod and multilayer boards combined T-shaped beam of bottom-chord built-in reinforcement steel bar and manufacturing method of T-shaped beam Download PDFInfo
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- CN103015626B CN103015626B CN201210592731.0A CN201210592731A CN103015626B CN 103015626 B CN103015626 B CN 103015626B CN 201210592731 A CN201210592731 A CN 201210592731A CN 103015626 B CN103015626 B CN 103015626B
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- rod
- composite board
- tee girder
- chip breaker
- slotted chip
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Abstract
The invention discloses a rod and multilayer boards combined T-shaped beam of a bottom-chord built-in reinforcement steel bar and a manufacturing method of the T-shaped beam, belonging to the field of constructional engineering. Two semi-cylindrical rods with grooves in hole cores and a tensile reinforcement steel bar form a circular bottom-chord rod of the built-in reinforcement steel bar by bamboo nails; a rod with arc-shaped slots in upper and lower ends is arranged between the circular bottom-chord rod and the semi-cylindrical rods which are parallel to each other, and is vertical to the circular bottom-chord rod and the semi-cylindrical rods; the arc-shaped slots in the two ends respectively contact the circular outer surfaces of the circular bottom-chord rod and the semi-cylindrical rods, and are connected together by the bamboo nails; a layer of multilayer boards is fixed on each of the lower side of the bottom-chord rod of the formed part and the left and right sides of the formed part; another rod is arranged on each of the outer sides of the left and right multilayer boards of the rod; the three rods are connected by a connecting reinforcement steel bar to form a flange of the T-shaped beam; and the layer of multilayer boards is fixed on the outer surface of the exposed rod to form the rod and multilayer boards combined T-shaped beam of the bottom-chord built-in reinforcement steel bar. According to the rod and multilayer boards combined T-shaped beam of the bottom-chord built-in reinforcement steel bar and the manufacturing method of the T-shaped beam provided by the invention, the rods resources are utilized to the greatest extent; the resource waste is reduced; the yield of construction waste is reduced; the manufacturing process is simple; and the construction is convenient.
Description
Technical field:
The present invention is that a kind of rod with processing is connected by bamboo nail, the operation such as assembled is combined into the built-in reinforcing bar of lower edge again with composite board rod and composite board combine tee girder and preparation method thereof, belongs to construction engineering technical field.
Background technology:
Along with the fast growing woods such as harvesting of wood industrial expansion and China fir, poplar, fir are at the intermediate cutting of its juvenile stage, rod proportion of production significantly increases.Rod, due to shortcomings such as footpath level are little, material is unstable, collection cost of transportation is higher, is not fully utilized, is even taken as refuse and abandons.Along with the fast development of society, people recognize the sharply minimizing of global resources amount, have started to be studied the application of rod.More existing rods are used to the plate core, circuit board etc. that are made into core-board, but utilization rate is low, and cost of production is higher, can not be applied to alone in the high beam material of requirement of strength.
The material that existing building uses mostly is cement, sand, stone, brick and tile etc., can produce building waste after demolishing buildings, and the process of building waste, also become a large problem of puzzlement urban ecological environment.Timber is a kind of product being conducive to environmental protection, is can the constructional materials of Natural re generation.Timber is compared with the manufacture process of other construction materials, and consume the energy less, the harmful waste of generation is less, and construction cost is also lower.
Therefore, comprehensive study and exploitation are carried out to the application of rod in building construction, preserve to greatest extent and utilize the original characteristic of rod, accomplish that suitable tree is suitable for, the large use of small wood, the excellent use of bad material, the comprehensive utilization ratio and the added value that improve small dimension wood have important economic worth and social effect.
Summary of the invention:
The object of the invention be to provide a kind of there is the advantages such as simple structure, cheap, easy construction the built-in reinforcing bar rod of lower edge and composite board combine tee girder, the present invention makes rod fully be utilized, decrease the waste of resource, decrease the output of building waste, be applicable in the periphery rural house building of the rod place of production.
The technical solution used in the present invention is as follows:
Rod and the composite board of the built-in reinforcing bar of lower edge combine tee girder, it is characterized in that: comprise rod 1, tee girder bottom bamboo nail 2, tee girder top bamboo nail 7, connecting reinforcement 8, tensile reinforcement 3, composite board 4, the semicolumn rod 5 of hole core ribbon groove and the rod 6 of upper and lower end band deep-slotted chip breaker
The semicolumn rod 5 of two hole core ribbon grooves is combined into the circular lower chord of center band hole along its length, tensile reinforcement 3 is positioned in the center hole of circular lower chord, two ends bolt is fixed, the rod 6 of upper and lower end band deep-slotted chip breaker is vertical with circular lower chord to be placed, and the deep-slotted chip breaker of rod 6 one end of end band deep-slotted chip breaker contacts with the rounded outer surface of circular lower chord up and down, with tee girder bottom bamboo nail 2, the rod 6 of circular lower chord and upper and lower end band deep-slotted chip breaker is linked together, rod 6 other end deep-slotted chip breaker of upper and lower end band deep-slotted chip breaker contacts with the rounded outer surface of a rod 1, and connect with tee girder top bamboo nail 7, at circular lower chord, on the downside of circular lower chord in the rod 6 of upper and lower end band deep-slotted chip breaker and rod 1 combiner and this combiner each side fix one deck composite board 4, left at rod 1 again, a rod 1 is respectively placed in the outside of right both sides composite board 4, with connecting reinforcement 8, three rods 1 are connected, form the edge of a wing of tee girder, three rod 1 exposed surfaces fix one deck composite board 4 the rod of the built-in reinforcing bar of lower edge and composite board combine tee girder.
Further, described rod (1) diameter is 60mm ~ 160mm, and through peeling, the dry timber formalized.
Further, the semicolumn rod (5) of described hole core ribbon groove radially cuts away half for rod (1) and goes out to cut out groove in the center of circle.
Further, the rod (6) of described upper and lower end band deep-slotted chip breaker is cut into by web height requirement for rod (1), and processing arc groove at upper and lower side, its spacing distributed between rod (1) and circular lower chord is not more than 1000mm.
Further, described tee girder bottom bamboo nail 2 and tee girder top bamboo nail 7 are made up of bamboo processing, and cross section is circular, and diameter 1mm ~ 2mm larger than prefabricated hole on rod 1, length is the twice of rod 1 diameter.
Further, described connecting reinforcement 8 model is HPB300, diameter 1mm ~ 2mm larger than prefabricated hole on rod 1, and length is the twice that three times of rod 1 diameter add composite board thickness, and on the edge of a wing of tee girder, distribute spacing is not more than 1000mm.
Further, the thickness of described composite board 4 is 3mm ~ 18mm, and form external corner place in contact and make slope angle, all contact positions seam rubber seal is closed.
Further, described tensile reinforcement 3 is not less than the HRB335 level reinforcing bar of 6mm for diameter.
Rod and the composite board of the built-in reinforcing bar of lower edge combine tee girder and preparation method, it is characterized in that production order is as follows:
1) rod 1 the prefabricated hole wearing bamboo nail 7 and connecting reinforcement 8 is made, make the semicolumn rod 5 of hole core ribbon groove and the prefabricated hole wearing bamboo nail 2, make the rod 6 of upper and lower end band deep-slotted chip breaker and the prefabricated hole wearing bamboo nail 2 and bamboo nail 7, make connecting reinforcement 8 and tensile reinforcement 3;
2) make circular opening tee girder bottom bamboo nail 2, tee girder top bamboo nail 7, composite board 4 and composite board 4 being worn connecting reinforcement 8, circular opening diameter composite board 4 being worn connecting reinforcement 8 is identical with connecting reinforcement 8;
3) the semicolumn rod 5 of two hole core ribbon grooves is combined into the circular lower chord of center band hole along its length, tensile reinforcement 3 is positioned in the center hole of circular lower chord, two ends bolt is fixed, the rod 6 of upper and lower end band deep-slotted chip breaker is vertical with circular lower chord to be placed, and the deep-slotted chip breaker of rod 6 one end of end band deep-slotted chip breaker contacts with the rounded outer surface of circular lower chord up and down, with tee girder bottom bamboo nail 2, the rod 6 of circular lower chord and upper and lower end band deep-slotted chip breaker is linked together, rod 6 other end deep-slotted chip breaker of upper and lower end band deep-slotted chip breaker contacts with the rounded outer surface of a rod 1, and connect with tee girder top bamboo nail 7,
4) on the downside of the circular lower chord in the rod 6 and rod 1 combiner of circular lower chord, up and down end band deep-slotted chip breaker and this combiner each side fix one deck composite board 4;
5) rod 1 is respectively placed in the outside of rod 1 arranged on left and right sides composite board 4 again, with connecting reinforcement 8, three rods 1 are connected, form the edge of a wing of tee girder, one deck composite board 4 is fixed at three rod 1 exposed surfaces, composite board 4 contact with each other formed external corner place make slope angle, all seam crossing rubber seals are closed.
The present invention is by rod, discarded bamboo raft, composite board and reinforcing bar are combined into the rod of the built-in reinforcing bar of lower edge and composite board combines tee girder, this beam is, with bamboo nail, rod is become a cooperative entirety with bar connecting, the sealing of external application composite board is fixing, change the shortcoming that single rod mechanical property is bad, the supporting capacity of rod is at utmost played, bamboo nail connects rod makes resource get the maximum use, decrease the waste of resource, decrease the output of building waste, manufacture craft is simple, easy construction, be applicable to the rural house building of rod place of production periphery.
Accompanying drawing explanation
Fig. 1 is that the built-in reinforcing bar rod of lower edge and composite board combine tee girder manufacturing process schematic diagram.
Fig. 2 is that the built-in reinforcing bar rod of lower edge and composite board combine tee girder A-A sectional view.
Fig. 3 is that the built-in reinforcing bar rod of lower edge and composite board combine tee girder B-B sectional view.
Fig. 4 is that the built-in reinforcing bar rod of lower edge and composite board combine tee girder C-C sectional view.
In figure: 1-rod; 2-T ellbeam bottom bamboo nail; 3-tensile reinforcement; 4-composite board; The semicolumn rod of 5-hole core ribbon groove; The rod of the upper and lower end band deep-slotted chip breaker of 6-; 7-T ellbeam top bamboo nail; 8-connecting reinforcement.
Detailed description of the invention:
Below in conjunction with the drawings and specific embodiments, the present invention is described further:
As shown in Figure 1 to 4, the built-in reinforcing bar rod of lower edge of the present invention and composite board combine tee girder, comprise rod 1, tee girder bottom bamboo nail 2, tee girder top bamboo nail 7, connecting reinforcement 8, tensile reinforcement 3, composite board 4, the semicolumn rod 5 of hole core ribbon groove and the rod 6 of upper and lower end band deep-slotted chip breaker, it is characterized in that: the semicolumn rod 5 of two hole core ribbon grooves is combined into the circular lower chord of center band hole along its length, tensile reinforcement 3 is positioned in the center hole of circular lower chord, two ends bolt is fixed, the rod 6 of upper and lower end band deep-slotted chip breaker is vertical with circular lower chord to be placed, and the deep-slotted chip breaker of rod 6 one end of end band deep-slotted chip breaker contacts with the rounded outer surface of circular lower chord up and down, with tee girder bottom bamboo nail 2, the rod 6 of circular lower chord and upper and lower end band deep-slotted chip breaker is linked together, rod 6 other end deep-slotted chip breaker of upper and lower end band deep-slotted chip breaker contacts with the rounded outer surface of a rod 1, and connect with tee girder top bamboo nail 7, at circular lower chord, on the downside of circular lower chord in the rod 6 of upper and lower end band deep-slotted chip breaker and rod 1 combiner and this combiner each side fix one deck composite board 4, left at rod 1 again, a rod 1 is respectively placed in the outside of right both sides composite board 4, with connecting reinforcement 8, three rods 1 are connected, form the edge of a wing of tee girder, three rod 1 exposed surfaces fix one deck composite board 4 the rod of the built-in reinforcing bar of lower edge and composite board combine tee girder.Described rod 1 diameter is 60mm ~ 160mm, and through peeling, the dry timber formalized.The semicolumn rod 5 of described hole core ribbon groove radially cuts away half for rod 1 and goes out to cut out groove in the center of circle.The rod 6 of described upper and lower end band deep-slotted chip breaker is cut into by web height requirement for rod 1, and processes arc groove at upper and lower side, and its spacing distributed between rod 1 and circular lower chord is not more than 1000mm.Described tee girder bottom bamboo nail 2 and tee girder top bamboo nail 7 are made up of bamboo processing, and cross section is circular, and diameter 1mm ~ 2mm larger than prefabricated hole on rod 1, length is the twice of rod 1 diameter.Described connecting reinforcement 8 model is HPB300, diameter 1mm ~ 2mm larger than prefabricated hole on rod 1, and length is the twice that three times of rod 1 diameter add composite board thickness, and on the edge of a wing of tee girder, distribute spacing is not more than 1000mm.The thickness of described composite board 4 is 3mm ~ 18mm, and form external corner place in contact and make slope angle, all contact positions seam rubber seal is closed.Described tensile reinforcement 3 is not less than the HRB335 level reinforcing bar of 6mm for diameter.
The built-in reinforcing bar rod of above-mentioned lower edge and composite board combine the preparation method of tee girder, and its concrete production order is as follows:
1) rod 1 the prefabricated hole wearing bamboo nail 7 and connecting reinforcement 8 is made, make the semicolumn rod 5 of hole core ribbon groove and the prefabricated hole wearing bamboo nail 2, make the rod 6 of upper and lower end band deep-slotted chip breaker and the prefabricated hole wearing bamboo nail 2 and bamboo nail 7, make connecting reinforcement 8 and tensile reinforcement 3;
2) circular opening tee girder bottom bamboo nail 2, tee girder top bamboo nail 7, composite board 4 and composite board 4 being worn connecting reinforcement 8 is made, the diameter of tee girder bottom bamboo nail 2 and tee girder top bamboo nail 7 is greater than the 1mm ~ 2mm of circular opening diameter on rod, length is the twice of rod 1 diameter, connecting reinforcement 8 model is HPB300, diameter 1mm ~ 2mm larger than prefabricated hole on rod 1, length is the twice that three times of rod 1 diameter add composite board thickness, and circular opening diameter composite board 4 being worn connecting reinforcement 8 is identical with connecting reinforcement 8;
3) the semicolumn rod 5 of two hole core ribbon grooves is combined into the circular lower chord of center band hole along its length, tensile reinforcement 3 is positioned in the center hole of circular lower chord, two ends bolt is fixed, the rod 6 of upper and lower end band deep-slotted chip breaker is vertical with circular lower chord to be placed, and the deep-slotted chip breaker of rod 6 one end of end band deep-slotted chip breaker contacts with the rounded outer surface of circular lower chord up and down, with tee girder bottom bamboo nail 2, the rod 6 of circular lower chord and upper and lower end band deep-slotted chip breaker is linked together, rod 6 other end deep-slotted chip breaker of upper and lower end band deep-slotted chip breaker contacts with the rounded outer surface of a rod 1, and connect with tee girder top bamboo nail 7,
4) on the downside of the circular lower chord in the rod 6 and rod 1 combiner of circular lower chord, up and down end band deep-slotted chip breaker and this combiner each side fix one deck composite board 4;
5) rod 1 is respectively placed in the outside of rod 1 arranged on left and right sides composite board 4 again, with connecting reinforcement 8, three rods 1 are connected, form the edge of a wing of tee girder, one deck composite board 4 is fixed at three rod 1 exposed surfaces, composite board 4 contact with each other formed external corner place make slope angle, all seam crossing rubber seals are closed.
Be more than an exemplary embodiments of the present invention, enforcement of the present invention is not limited thereto.
Claims (9)
1. the rod of the built-in reinforcing bar of lower edge and composite board combine tee girder, it is characterized in that: comprise rod (1), tee girder bottom bamboo nail (2), tee girder top bamboo nail (7), connecting reinforcement (8), tensile reinforcement (3), composite board (4), the semicolumn rod (5) of hole core ribbon groove and the rod (6) of upper and lower end band deep-slotted chip breaker, the semicolumn rod (5) of two hole core ribbon grooves is combined into the circular lower chord of center band hole along its length, tensile reinforcement (3) is positioned in the center hole of circular lower chord, two ends bolt is fixed, the rod (6) of multiple upper and lower end band deep-slotted chip breaker is vertical with circular lower chord to be placed, and the deep-slotted chip breaker of rod (6) one end of end band deep-slotted chip breaker contacts with the rounded outer surface of circular lower chord up and down, with tee girder bottom bamboo nail (2), the rod (6) of circular lower chord and upper and lower end band deep-slotted chip breaker is linked together, rod (6) other end deep-slotted chip breaker of upper and lower end band deep-slotted chip breaker contacts with the rounded outer surface of a rod (1), and connect with tee girder top bamboo nail (7), at circular lower chord, on the downside of circular lower chord in the rod (6) of upper and lower end band deep-slotted chip breaker and rod (1) combiner and each fixing one deck composite board (4) in both sides of this combiner, left at rod (1) again, a rod (1) is respectively placed in the outside of right both sides composite board (4), with connecting reinforcement (8), three rods (1) are connected, form the edge of a wing of tee girder, three rod (1) exposed surfaces fix one deck composite board (4) the rod of the built-in reinforcing bar of lower edge and composite board combine tee girder.
2. the rod of the built-in reinforcing bar of lower edge and composite board combine tee girder according to claim 1, it is characterized in that: rod (1) diameter is 60mm ~ 160mm, and through the timber of peeling, dry setting.
3. the rod of the built-in reinforcing bar of lower edge and composite board combine tee girder according to claim 1, it is characterized in that: the semicolumn rod (5) of described hole core ribbon groove radially cuts away half and cuts out groove at circle centre position for rod (1).
4. the rod of the built-in reinforcing bar of lower edge and composite board combine tee girder according to claim 1, it is characterized in that: the rod (6) of described upper and lower end band deep-slotted chip breaker is cut into by web height requirement for rod (1), and processing arc groove at upper and lower side, its spacing distributed between rod (1) and circular lower chord is not more than 1000mm.
5. the rod of the built-in reinforcing bar of lower edge and composite board combine tee girder according to claim 1, it is characterized in that: described tee girder bottom bamboo nail (2) and tee girder top bamboo nail (7) are made up of bamboo processing, cross section is circular, diameter 1mm ~ 2mm larger than the upper prefabricated hole of rod (1), length is the twice of rod (1) diameter.
6. the rod of the built-in reinforcing bar of lower edge and composite board combine tee girder according to claim 1, it is characterized in that: described connecting reinforcement (8) model is HPB300, diameter 1mm ~ 2mm larger than the upper prefabricated hole of rod (1), length is the twice that three times of rod (1) diameter add composite board thickness, and on the edge of a wing of tee girder, distribute spacing is not more than 1000mm.
7. the rod of the built-in reinforcing bar of lower edge and composite board combine tee girder according to claim 1, it is characterized in that: the thickness of described composite board (4) is 3mm ~ 18mm, and form external corner place in contact and make slope angle, all contact positions seam rubber seal is closed.
8. the rod of the built-in reinforcing bar of lower edge and composite board combine tee girder according to claim 1, it is characterized in that: described tensile reinforcement (3) is not less than the HRB335 level reinforcing bar of 6mm for diameter.
9. the rod of the built-in reinforcing bar of lower edge according to claim arbitrary in claim 1-8 and composite board combine a preparation method for tee girder, it is characterized in that production order is as follows:
1) rod (1) the prefabricated hole wearing tee girder top bamboo nail (7) and connecting reinforcement (8) is made, make the semicolumn rod (5) of hole core ribbon groove and the prefabricated hole wearing tee girder bottom bamboo nail (2), make the rod (6) of upper and lower end band deep-slotted chip breaker and the prefabricated hole wearing tee girder bottom bamboo nail (2) and tee girder top bamboo nail (7), make connecting reinforcement (8) and tensile reinforcement (3);
2) make circular opening tee girder bottom bamboo nail (2), tee girder top bamboo nail (7), composite board (4) and composite board (4) being worn connecting reinforcement (8), circular opening diameter composite board (4) being worn connecting reinforcement (8) is identical with connecting reinforcement (8);
3) the semicolumn rod (5) of two hole core ribbon grooves is combined into the circular lower chord of center band hole along its length, tensile reinforcement (3) is positioned in the center hole of circular lower chord, two ends bolt is fixed, the rod (6) of upper and lower end band deep-slotted chip breaker is vertical with circular lower chord to be placed, and the deep-slotted chip breaker of rod (6) one end of end band deep-slotted chip breaker contacts with the rounded outer surface of circular lower chord up and down, with tee girder bottom bamboo nail (2), the rod (6) of circular lower chord and upper and lower end band deep-slotted chip breaker is linked together, rod (6) other end deep-slotted chip breaker of upper and lower end band deep-slotted chip breaker contacts with the rounded outer surface of a rod (1), and connect with tee girder top bamboo nail (7),
4) on the downside of the circular lower chord in the rod (6) and rod (1) combiner of circular lower chord, up and down end band deep-slotted chip breaker with this combiner each side fix one deck composite board (4);
5) rod (1) is respectively placed in the outside of rod (1) arranged on left and right sides composite board (4) again, with connecting reinforcement (8), three rods (1) are connected, form the edge of a wing of tee girder, one deck composite board (4) is fixed at three rod (1) exposed surfaces, composite board (4) contact with each other formed external corner place make slope angle, all seam crossing rubber seals are closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210592731.0A CN103015626B (en) | 2012-12-30 | 2012-12-30 | Rod and multilayer boards combined T-shaped beam of bottom-chord built-in reinforcement steel bar and manufacturing method of T-shaped beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210592731.0A CN103015626B (en) | 2012-12-30 | 2012-12-30 | Rod and multilayer boards combined T-shaped beam of bottom-chord built-in reinforcement steel bar and manufacturing method of T-shaped beam |
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| Publication Number | Publication Date |
|---|---|
| CN103015626A CN103015626A (en) | 2013-04-03 |
| CN103015626B true CN103015626B (en) | 2015-06-17 |
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| CN201210592731.0A Expired - Fee Related CN103015626B (en) | 2012-12-30 | 2012-12-30 | Rod and multilayer boards combined T-shaped beam of bottom-chord built-in reinforcement steel bar and manufacturing method of T-shaped beam |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105275121B (en) * | 2014-05-28 | 2018-06-19 | 中建五洲工程装备有限公司 | Three layers of T-steel laced beam and preparation method thereof |
| ES2881347T3 (en) | 2016-03-15 | 2021-11-29 | Andrew Thornton | Structural member that has paired flanges and soul |
| CN109779147A (en) * | 2019-03-01 | 2019-05-21 | 南京林业大学 | A kind of parallel chords steel bamboo composite roof truss structure |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6354715U (en) * | 1986-09-30 | 1988-04-12 | ||
| WO2001054544A1 (en) * | 2000-01-27 | 2001-08-02 | Vormann Gmbh & Co. Kg | Rod-shaped wooden element |
| CN201386399Y (en) * | 2009-02-24 | 2010-01-20 | 南京工业大学 | High-strength durable wood I-beam |
| CN201416231Y (en) * | 2009-05-11 | 2010-03-03 | 宁波大学 | Combined I-beam |
| CN101748858A (en) * | 2009-12-23 | 2010-06-23 | 宁波大学 | Environment friendly H-shaped combination beam and processing method thereof |
| CN101942885A (en) * | 2010-09-16 | 2011-01-12 | 南京林业大学 | A kind of FRP-bamboo-concrete combination beam |
-
2012
- 2012-12-30 CN CN201210592731.0A patent/CN103015626B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6354715U (en) * | 1986-09-30 | 1988-04-12 | ||
| WO2001054544A1 (en) * | 2000-01-27 | 2001-08-02 | Vormann Gmbh & Co. Kg | Rod-shaped wooden element |
| CN201386399Y (en) * | 2009-02-24 | 2010-01-20 | 南京工业大学 | High-strength durable wood I-beam |
| CN201416231Y (en) * | 2009-05-11 | 2010-03-03 | 宁波大学 | Combined I-beam |
| CN101748858A (en) * | 2009-12-23 | 2010-06-23 | 宁波大学 | Environment friendly H-shaped combination beam and processing method thereof |
| CN101942885A (en) * | 2010-09-16 | 2011-01-12 | 南京林业大学 | A kind of FRP-bamboo-concrete combination beam |
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