CN202809488U - Cross laminated timber (CLT) bridge deck slab based on cold-formed thin-walled steel plate bracing - Google Patents
Cross laminated timber (CLT) bridge deck slab based on cold-formed thin-walled steel plate bracing Download PDFInfo
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- CN202809488U CN202809488U CN 201220428905 CN201220428905U CN202809488U CN 202809488 U CN202809488 U CN 202809488U CN 201220428905 CN201220428905 CN 201220428905 CN 201220428905 U CN201220428905 U CN 201220428905U CN 202809488 U CN202809488 U CN 202809488U
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Abstract
The utility model discloses a cross laminated timber (CLT) bridge deck slab based on cold-formed thin-walled steel plate bracing. The CLT bridge deck slab comprises a CLT wood bridge deck slab body and tensile steel plates, wherein the tensile steel plates are arranged at the bottom of the CLT wood bridge deck slab body which is supported through a support seat located at the bottom of the CLT wood bridge deck slab body; the area where the support seat supports the CLT wood bridge deck slab body is a big shearing stress area; the segment where the big shearing stress area in the CLT wood bridge deck slab body is located is a big shearing stress bridge deck slab segment; shearing resistant components are arranged on the left side wall and the right side wall of the big shearing stress bridge deck slab segment; the tensile steel plates are cold-formed thin-walled steel plates; the CLT wood bridge deck slab body is made of multiple layers of wood laminates in a gluing mode; and the multiple layers of wood laminates are overlapped together from top to bottom. The CLT bridge deck slab based on the cold-formed thin-walled steel plate bracing is simple in structure, reasonable in design, simple and convenient to process and manufacture, good in using effect, and capable of effectively improving tensile carrying capacity of the bottom layer of the CLT wood bridge deck slab body, shearing resistance carrying capacity of the section of the CLT wood bridge deck slab body, and stress performance of the CLT wood bridge deck slab body.
Description
Technical field
The utility model relates to a kind of bridge deck, especially relates to a kind of CLT bridge deck of putting more energy into based on the light gauge cold-formed steel shape plate.
Background technology
The CLT plate is the American-European in recent years wooden construction New Product of exploitation, it is to adopt staggered superimposed (cross laminated) technology, take full advantage of the timber rift grain to tensile strength high, and band is to the high characteristics of compressive strength, by gummed or stitching method, the specification wood lath connected with the band vertical interlaced mode of being connected according to rift grain and the integrated support structure that forms.This novel light wooden construction form (being the CLT plate) is applied in the modern wood structure bridge construction, i.e. CLT wooden bridge panel, it has good biaxial mechanical capability; Raw material wide material sources, high, the good economy performance of utilization rate; Production and processing is easy; Be fit to large-scale production; The advantages such as it is less to shrink, expand.CLT wooden bridge panel has broad application prospects in bridge construction.
But, because the raw material of CLT wooden bridge panel are anisotropy biomaterial (being timber), and couple together by gummed or stitching between interlayer and plate, in using, concrete engineering also exists some shortcomings, mainly comprise following aspect: the first, the Effect on Mechanical Properties factor is many, and the control in selection, the work progress is strict; The factor that affects the wooden material performance is a lot, and processing technology and operating process and production environment etc. all can affect its mechanical property; In addition, the defective of timber part all may cause the timber local failure such as knaur, rotten etc.; The second, interlaminar strength is one of member control design; The interlaminar shear strength of CLT plate and the hot strength generally intensity level than matrix are low, under the inter-laminar stress effect, delamination of composite laminated plates occurs easily, thereby cause the destruction of CLT plate.
The utility model content
Technical problem to be solved in the utility model is for above-mentioned deficiency of the prior art, a kind of CLT bridge deck of putting more energy into based on the light gauge cold-formed steel shape plate are provided, it is simple in structure, reasonable in design and processing and fabricating is easy, result of use is good, can Effective Raise CLT wooden bridge panel bottom tension supporting capacity and the cross section shear resistant capacity, and effectively improve the stress performance of CLT wooden bridge panel.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of CLT bridge deck of putting more energy into based on the light gauge cold-formed steel shape plate is characterized in that: comprise CLT wooden bridge decks and the tension steel plate that is laid in CLT wooden bridge decks bottom; Described CLT wooden bridge decks supports by the bearing that is positioned at its bottom, and the zone that described bearing supports the CLT wooden bridge decks is large shear stress zone, and the residing sections in large shear stress zone described in the CLT wooden bridge decks is large shear stress bridge deck sections, is provided with member in shear memory on the left and right sides wall of described large shear stress bridge deck sections; Described tension steel plate is the light gauge cold-formed steel shape plate; The rectangular-shaped bridge deck of described CLT wooden bridge decks for being formed by multilayered wood laminate gummed, the described wooden laminate of multilayer from top to bottom be superimposed together and the described wooden laminate of adjacent two layers between all be fastenedly connected in the gummed mode, the described wooden laminate of every one deck forms by the polylith strip veneering that is bolted together side by side, and all orthogonal thereto layings of all strip planks in the neighbouring two-layer wooden laminate; Being laid in undermost wooden laminate in the described wooden laminate of multilayer is the wooden laminate of bottom, and the length direction of all the strip planks in the wooden laminate of described bottom is all consistent to direction with the suitable bridge of CLT wooden bridge decks.
Above-mentioned a kind of CLT bridge deck of putting more energy into based on the light gauge cold-formed steel shape plate is characterized in that: described member in shear memory comprises the anti-shear steel plate bar that lay at the multiple tracks interval, and the vertical height of described anti-shear steel plate bar is identical with the thickness of CLT wooden bridge decks.
Above-mentioned a kind of CLT bridge deck of putting more energy into based on the light gauge cold-formed steel shape plate is characterized in that: described tension steel plate is fixed on CLT wooden bridge decks bottom by a plurality of self tapping self-drilling screws.
Above-mentioned a kind of CLT bridge deck of putting more energy into based on the light gauge cold-formed steel shape plate is characterized in that: a plurality of described self tapping self-drilling screws are even laying.
Above-mentioned a kind of CLT bridge deck of putting more energy into based on the light gauge cold-formed steel shape plate, it is characterized in that: the wooden laminate that is laid in the superiors in the described wooden laminate of multilayer is the wooden laminate of top layer, and the length direction of all the strip planks in the wooden laminate of described top layer is all consistent to direction with the suitable bridge of CLT wooden bridge decks.
Above-mentioned a kind of CLT bridge deck of putting more energy into based on the light gauge cold-formed steel shape plate is characterized in that: described tension steel plate is for to carry out the rectangle steel plate that integral body is put more energy into to the CLT wooden bridge decks, and the size of described rectangle steel plate is identical with the bottom size of CLT wooden bridge decks.
Above-mentioned a kind of CLT bridge deck of putting more energy into based on the light gauge cold-formed steel shape plate is characterized in that: described anti-shear steel plate bar is strip light gauge cold-formed steel shape plate.
Above-mentioned a kind of CLT bridge deck of putting more energy into based on the light gauge cold-formed steel shape plate, it is characterized in that: described anti-shear steel plate bar is fixed on the sidewall of CLT wooden bridge decks by the self tapping self-drilling screw.
Above-mentioned a kind of CLT bridge deck of putting more energy into based on the light gauge cold-formed steel shape plate, it is characterized in that: described strip plank is comprised of a plurality of plank section assemblings.
Above-mentioned a kind of CLT bridge deck of putting more energy into based on the light gauge cold-formed steel shape plate, it is characterized in that: the quantity of described wooden laminate is at least three layers.
The utility model compared with prior art has the following advantages:
1, simple in structure, reasonable in design and process technology is advanced, easy construction, adopt the self tapping self-drilling screw to carry out stitching, need not hole and drilling screw, and its screw thread has self-locking action, stress performance is good, has more avoided simultaneously a large amount of loaded down with trivial details bolts to connect operations and cross section because of problems such as prefabricated perforate are weakened.
2, economical rationality, timber are recyclable materials, environmental protection and energy saving, and environment compatibility is good, the late maintaining expense is low, and cold-rolled forming section is a kind of cross section light thin wall steel of economy simultaneously, and next adopts the self tapping self-drilling screw, avoid the high bolt connection piece of mounting cost, economy is better.
3, result of use is good and supporting capacity is high, the utility model is according to the loading characteristic of CLT wooden bridge panel, by the self tapping self-drilling screw with the stitching of light gauge cold-formed steel shape plate in the larger position of tensile stress, CLT wooden bridge panel bottom, and at the larger position of CLT wooden bridge panel side shear stress local stitching light gauge cold-formed steel shape lath, reach the purpose that improves CLT wooden bridge panel bottom tension supporting capacity and cross section shear resistant capacity, thereby improve the stress performance of CLT wooden bridge panel, delay the time that CLT wooden bridge panel tensile region is destroyed.
In sum, the utility model is simple in structure, reasonable in design and processing and fabricating is easy, result of use is good, can effectively reduce local defect to the adverse effect of existing CLT wooden bridge panel, energy Effective Raise CLT wooden bridge panel bottom tension supporting capacity and cross section shear resistant capacity, thereby improve the stress performance of CLT wooden bridge panel, delay the time that CLT wooden bridge panel tensile region is destroyed.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Description of drawings
Fig. 1 is polycrystalline substance schematic diagram of the present utility model.
Fig. 2 is side portion structure schematic diagram of the present utility model.
Fig. 3 is the structural representation that the utility model adopts the CLT wooden bridge decks.
Fig. 4 is the structural representation that the utility model adopts the plank sections.
Description of reference numerals:
1-CLT wooden bridge decks; 2-tension steel plate; 3-anti-shear steel plate bar;
4-self tapping self-drilling screw; 5-plank sections; 6-strip plank;
7-wooden laminate.
The specific embodiment
Such as Fig. 1, Fig. 2, Fig. 3 and shown in Figure 4, the utility model comprises CLT wooden bridge decks 1 and is laid in the tension steel plate 2 of CLT wooden bridge decks 1 bottom; Described CLT wooden bridge decks 1 supports by the bearing that is positioned at its bottom, and the zone that described bearing supports CLT wooden bridge decks 1 is large shear stress zone, and the residing sections in large shear stress zone described in the CLT wooden bridge decks 1 is large shear stress bridge deck sections, is provided with member in shear memory on the left and right sides wall of described large shear stress bridge deck sections.Described tension steel plate 2 is the light gauge cold-formed steel shape plate.The rectangular-shaped bridge deck of described CLT wooden bridge decks 1 for being formed by multilayered wood laminate 7 gummeds, the described wooden laminate 7 of multilayer from top to bottom be superimposed together and the described wooden laminate 7 of adjacent two layers between all be fastenedly connected in the gummed mode, the described wooden laminate 7 of every one deck forms by polylith strip plank 6 gummeds that are bolted together side by side, and all orthogonal thereto layings of all strip planks 6 in the neighbouring two-layer wooden laminate 7.Be laid in undermost wooden laminate 7 in the described wooden laminate 7 of multilayer and be the wooden laminate of bottom, the length direction of all the strip planks 6 in the wooden laminate of described bottom is all consistent to direction with the suitable bridge of CLT wooden bridge decks 1.
In the present embodiment, described member in shear memory comprises the anti-shear steel plate bar 3 that lay at the multiple tracks interval, and the vertical height of described anti-shear steel plate bar 3 is identical with the thickness of CLT wooden bridge decks 1.
In the practice of construction process, described tension steel plate 2 is fixed on CLT wooden bridge decks 1 bottom by a plurality of self tapping self-drilling screws 4.And a plurality of described self tapping self-drilling screws 4 are even laying.
In the present embodiment, described anti-shear steel plate bar 3 is strip light gauge cold-formed steel shape plate, and described anti-shear steel plate bar 3 is fixed on the sidewall of CLT wooden bridge decks 1 by self tapping self-drilling screw 4.
In the present embodiment, described tension steel plate 2 is for to carry out the rectangle steel plate that integral body is put more energy into to CLT wooden bridge decks 1, and the size of described rectangle steel plate is identical with the bottom size of CLT wooden bridge decks 1.
In the actual processing and making process, the size of described tension steel plate 2 and anti-shear steel plate bar 3, specification etc. are all carried out corresponding definite according to actual loading situation and the form of structure of described CLT wooden bridge decks 1.Described tension steel plate 2 and anti-shear steel plate bar 3 both can adopt the steel of the identical trade mark, also can adopt the steel of the different trades mark.Simultaneously, the surface of tension steel plate 2 and anti-shear steel plate bar 3 all should be carried out corresponding preservative treatment as the case may be.
The specification of described self tapping self-drilling screw 4 and quantity all should be determined according to actual loading situation and the form of structure of CLT wooden bridge decks 1.In addition, the specification of described self tapping self-drilling screw 4 also needs to consider the thickness of tension steel plate 2 and anti-shear steel plate bar 3, in order to avoid the phenomenon of attacking to advance or breaking end occurs.In addition, actual when carrying out stitching, described self tapping self-drilling screw 4 should be arranged symmetrically on the surface of CLT wooden bridge decks 1, and avoid stitching in the glue commissure of CLT wooden bridge decks 1.
To sum up, actually add man-hour, by self tapping self-drilling screw 4 with 2 stitchings of tension steel plate in the larger position of CLT wooden bridge decks 1 bottom tensile stress, and at the larger position of the side shear stress local stitching anti-shear steel plate bar 3 of the bearing installation place of CLT wooden bridge decks 1.
In the present embodiment, the wooden laminate 7 that is laid in the superiors in the described wooden laminate 7 of multilayer is the wooden laminate 7 of top layer, and the length direction of all the strip planks 6 in the wooden laminate 7 of described top layer is all consistent to direction with the suitable bridge of CLT wooden bridge decks 1.
During actual processing and fabricating, the quantity of described wooden laminate 7 is at least three layers.In the present embodiment, the quantity of described wooden laminate 7 is three layers.And described strip plank 6 is assemblied to form by a plurality of plank sections 5.
When reality was carried out processing and fabricating to CLT wooden bridge decks 1, with after the log cutting, the dimension stock that supports appropriate size was plank sections 5 first, also needed simultaneously carry out the processing such as anticorrosion, dry to plank sections 5; Again a plurality of plank sections 5 spreadings are formed for making the strip plank 6 of wooden laminate 7; Subsequently, after each surface of strip plank 6 scraped, takes out stains, and in 12h, adopt suitable wooden construction glue bond to form wooden laminate 7; Then, adopt wooden construction glue that multilayered wood laminate 7 is staggered superimposed, and begin to take shape a complete CLT wooden bridge decks 1, and the CLT wooden bridge decks 1 that begins to take shape is carried out in length and breadth obtaining the CLT wooden bridge decks 1 that gummed is finished to pressurization; At last, to the CLT wooden bridge decks 1 that gummed is finished saw except corner angle, scrape, the processing such as sanding, make the surface of CLT wooden bridge decks 1 reach the fineness of designing requirement, just obtain the CLT wooden bridge decks 1 that machines.
During actual processing and fabricating, the spreading of plank sections 5 can adopt the finger mode.When carrying out in length and breadth to pressurization to described CLT wooden bridge decks 1, the hydraulic jack pressurization can be used, also vacuum pressed can be adopted.Should apply lateral pressure to every one deck layer of wood plate 7, and the pressure size is approximately 0.2MPa.For staggered superimposed multilayered wood laminate 7, if finished horizontal pressurization when single wooden laminate 7 glues together, then the described wooden laminate 7 of multilayer can not apply lateral pressure, and only vertically pressurizeing gets final product.If adopt the hydraulic jack pressurization, vertical pressure is generally got 0.6Mpa; If the employing vacuum pressed, vertical pressure is generally less than 0.1MPa.Described CLT wooden bridge decks 1 should be placed 24h under pressurized state, maintenance 24h again after the release can carry out other processing.
In the present embodiment, described tension steel plate 2 and anti-shear steel plate bar 3 all adopt the Q235 steel, and tension steel plate 2 and anti-shear steel plate bar 3 all adopt coat of metal (being that surface alloying is zinc-plated) to carry out anticorrosion.Described self tapping self-drilling screw 4 is selected the stainless steel slotted pan head tapping screw.
The above; it only is preferred embodiment of the present utility model; be not that the utility model is imposed any restrictions; every any simple modification, change and equivalent structure of above embodiment being done according to the utility model technical spirit changes, and all still belongs in the protection domain of technical solutions of the utility model.
Claims (10)
1. CLT bridge deck of putting more energy into based on the light gauge cold-formed steel shape plate is characterized in that: comprise CLT wooden bridge decks (1) and be laid in the tension steel plate (2) of CLT wooden bridge decks (1) bottom; Described CLT wooden bridge decks (1) supports by the bearing that is positioned at its bottom, and the zone that described bearing supports CLT wooden bridge decks (1) is large shear stress zone, and the residing sections in large shear stress zone described in the CLT wooden bridge decks (1) is large shear stress bridge deck sections, is provided with member in shear memory on the left and right sides wall of described large shear stress bridge deck sections; Described tension steel plate (2) is the light gauge cold-formed steel shape plate; The rectangular-shaped bridge deck of described CLT wooden bridge decks (1) for being formed by multilayered wood laminate (7) gummed, the described wooden laminate of multilayer (7) from top to bottom be superimposed together and the described wooden laminate of adjacent two layers (7) between all be fastenedly connected in the gummed mode, the described wooden laminate of every one deck (7) forms by polylith strip plank (6) gummed that is bolted together side by side, and all orthogonal thereto layings of strip plank (6) in the neighbouring two-layer wooden laminate (7); Being laid in undermost wooden laminate (7) in the described wooden laminate of multilayer (7) is the wooden laminate of bottom, and the length direction of all the strip planks (6) in the wooden laminate of described bottom is all consistent to direction with the suitable bridge of CLT wooden bridge decks (1).
2. according to a kind of CLT bridge deck of putting more energy into based on the light gauge cold-formed steel shape plate claimed in claim 1, it is characterized in that: described member in shear memory comprises the anti-shear steel plate bar (3) that lay at the multiple tracks interval, and the vertical height of described anti-shear steel plate bar (3) is identical with the thickness of CLT wooden bridge decks (1).
3. according to claim 1 or 2 described a kind of CLT bridge deck of putting more energy into based on the light gauge cold-formed steel shape plate, it is characterized in that: described tension steel plate (2) is fixed on CLT wooden bridge decks (1) bottom by a plurality of self tapping self-drilling screws (4).
4. according to a kind of CLT bridge deck of putting more energy into based on the light gauge cold-formed steel shape plate claimed in claim 3, it is characterized in that: a plurality of described self tapping self-drilling screws (4) are even laying.
5. according to claim 1 or 2 described a kind of CLT bridge deck of putting more energy into based on the light gauge cold-formed steel shape plate, it is characterized in that: the wooden laminate (7) that is laid in the superiors in the described wooden laminate of multilayer (7) is the wooden laminate of top layer, and the length direction of all the strip planks (6) in the wooden laminate of described top layer is all consistent to direction with the suitable bridge of CLT wooden bridge decks (1).
6. according to claim 1 or 2 described a kind of CLT bridge deck of putting more energy into based on the light gauge cold-formed steel shape plate, it is characterized in that: described tension steel plate (2) is for to carry out the rectangle steel plate that integral body is put more energy into to CLT wooden bridge decks (1), and the size of described rectangle steel plate is identical with the bottom size of CLT wooden bridge decks (1).
7. according to a kind of CLT bridge deck of putting more energy into based on the light gauge cold-formed steel shape plate claimed in claim 2, it is characterized in that: described anti-shear steel plate bar (3) is strip light gauge cold-formed steel shape plate.
8. according to a kind of CLT bridge deck of putting more energy into based on the light gauge cold-formed steel shape plate claimed in claim 2, it is characterized in that: described anti-shear steel plate bar (3) is fixed on the sidewall of CLT wooden bridge decks (1) by self tapping self-drilling screw (4).
9. according to claim 1 or 2 described a kind of CLT bridge deck of putting more energy into based on the light gauge cold-formed steel shape plate, it is characterized in that: described strip plank (6) is assemblied to form by a plurality of plank sections (5).
10. according to claim 1 or 2 described a kind of CLT bridge deck of putting more energy into based on the light gauge cold-formed steel shape plate, it is characterized in that: the quantity of described wooden laminate (7) is at least three layers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220428905 CN202809488U (en) | 2012-08-27 | 2012-08-27 | Cross laminated timber (CLT) bridge deck slab based on cold-formed thin-walled steel plate bracing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220428905 CN202809488U (en) | 2012-08-27 | 2012-08-27 | Cross laminated timber (CLT) bridge deck slab based on cold-formed thin-walled steel plate bracing |
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| Publication Number | Publication Date |
|---|---|
| CN202809488U true CN202809488U (en) | 2013-03-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220428905 Expired - Fee Related CN202809488U (en) | 2012-08-27 | 2012-08-27 | Cross laminated timber (CLT) bridge deck slab based on cold-formed thin-walled steel plate bracing |
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| CN (1) | CN202809488U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3039456A1 (en) * | 2015-07-31 | 2017-02-03 | Univ Bordeaux | MULTILAYER WOOD PANEL AND METHOD FOR CUTTING AND ASSEMBLING WOOD AVIVES IN THE GREEN CONDITION FOR MANUFACTURING SUCH A PANEL |
| CN109483666A (en) * | 2018-12-25 | 2019-03-19 | 苏州正乙丙纳米环保科技有限公司 | The industrialization preparation method of three layers of orthogonal integrated plate and the orthogonal circuit board of preparation |
-
2012
- 2012-08-27 CN CN 201220428905 patent/CN202809488U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3039456A1 (en) * | 2015-07-31 | 2017-02-03 | Univ Bordeaux | MULTILAYER WOOD PANEL AND METHOD FOR CUTTING AND ASSEMBLING WOOD AVIVES IN THE GREEN CONDITION FOR MANUFACTURING SUCH A PANEL |
| WO2017021619A1 (en) * | 2015-07-31 | 2017-02-09 | Universite de Bordeaux | Multilayer wood panel and method for cutting and assembling squared green wood for producing such a panel |
| CN109483666A (en) * | 2018-12-25 | 2019-03-19 | 苏州正乙丙纳米环保科技有限公司 | The industrialization preparation method of three layers of orthogonal integrated plate and the orthogonal circuit board of preparation |
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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: 20130320 Termination date: 20200827 |