CN208934217U - A kind of prestressed slab component made of orthogonal laminated wood - Google Patents
A kind of prestressed slab component made of orthogonal laminated wood Download PDFInfo
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- CN208934217U CN208934217U CN201821378259.XU CN201821378259U CN208934217U CN 208934217 U CN208934217 U CN 208934217U CN 201821378259 U CN201821378259 U CN 201821378259U CN 208934217 U CN208934217 U CN 208934217U
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Abstract
A kind of prestressed slab component made of orthogonal laminated wood, it is characterized in that presstressed reinforcing steel (3) is located in the geometric space formed after the outermost wherein side laminate extraction of prefabricated orthogonal glued wood (1), the geometric space terminal mounting ends mould formed after the prefabricated orthogonal outermost wherein side laminate extraction of glued wood (1) after the completion of presstressed reinforcing steel (3) tensioning, then casting concrete (2) and vibrate with it is levelling, end mould is removed when concrete (2) intensity is more than or equal to 2.5MPa, open when concrete (2) maintenance to intensity is not less than the 75% of design value and put, and anti-corrosion measure is carried out to presstressed reinforcing steel (3) exposed parts, realize the prestressed slab component production based on orthogonal laminated wood.The utility model aims to solve the problem that orthogonal glued wood component causes applied prestressing force limited and the problem excessive to loss of prestress after presstressed reinforcing steel application prestressing force by own material properties.
Description
Technical field
The utility model relates to a kind of prestressed slab components made of orthogonal laminated wood, are suitable for all kinds of medium and small
The horizontal member of bridge and building, belongs to field of civil engineering.
Background technique
With the fast development of China's architectural industrialization, the research of assembled architecture is more burning hot, with the cast-in-place house of tradition
It compares, assembled-type house has many advantages, such as that industrialization degree is high, construction quality easily guarantees, short construction period and high financial profit.
Assembled simplifies working procedure, reduces high altitude operation, and lifting component is more convenient, ensure that the safety at scene to a certain extent.
With China's economic development, living standards of the people are improved, and are pursued health, are advocated nature, environmentally protective consumption concept by people
Approved, so that timber buildings industry is radiated vigour again.
Orthogonal laminated wood (Cross-Laminated Timber abbreviation CLT) is at least by 3 layers of solid sawn lumber or structure composite
The orthogonal assembly of plate (Structural composite lumber abbreviation SCL), the factory made of structural adhesive is suppressed
Precast construction wood products were widely used in multi- story and high- rise building and bridge field in recent years.Orthogonal laminated wood is using staggeredly overlapping
Mode makes full use of timber tensile strength parallel to grain and the high feature of compression strength perpendicular to grain, and the specific gravity of timber is steel
1/10,1/4 or so of concrete can reduce self weight for building, and reducing geological process bring influences, and bridge is come
It says and the ratio for bearing mobile load can be improved.
When orthogonal glued wood is as floorboard, because it is with good biaxial mechanical capability, dimensional stability, fire line
Can, anti-seismic performance provides possibility to build more high-rise timber buildings, and furthermore orthogonal laminated wood also possesses outstanding overhanging energy
Power provides more diversified design scheme for building designers.
Strong to the salt compounds repellence such as deicer, chemical agent when orthogonal glued wood is as floorings, durability is good,
There is good adhesive property with pavement material.The bridge floor road-ability of orthogonal laminated wood production is good, and overload capacity is strong, Lu Yong
Performance is good.The fatigue strength of orthogonal laminated wood is the several times of other most of materials, therefore orthogonal glued wooden boards fatigue resistance
It can be good.
In order to can be applied to orthogonal laminated wood in more Practical Projects, there are engineer and scholar by prestressing technique
It is combined with orthogonal laminated wood, but is only by orthogonal glued wood aperture, using the orthogonal laminated wood in the split hole of post-tensioning law technology
Plate applies prestressing force, although also functioning to lift, the effects of lightened plate floor component thickness, the compressive property of Wood member with
Concrete component, which is compared, still larger gap, therefore the prestressing force that can apply on presstressed reinforcing steel is limited.Furthermore in Practical Project
In it is simple prestressing force is applied to Wood member, due to the creep ratio reinforced concrete member of Wood member under external force
Greatly, this can make the prestressing force in prestressed component generate loss, i.e., the prestressing force unloading on presstressed reinforcing steel.
To improve above situation, such as Chinese Patent No. " 201710699702.7 " number, disclosing one kind, " a kind of assembling is pre-
The orthogonal laminated wood shear wall of stress ", two limit steel members are connect with basis, and lower layer's CLT wallboard passes through unbonded prestressing tendon
It is held out against with basis, lower layer's bearing beam is connect with lower layer's CLT wallboard, and lower floor plate bracing frame is held on after connecting with lower layer CLT floor
At the top of lower layer's bearing beam, upper layer CLT wallboard is connect with two lower floor plate bracing frames, and upper layer bearing beam is connect with upper layer CLT wallboard, and two
A unbonded prestressing tendon passes through upper layer CLT wallboard and lower layer's CLT wallboard.The setting of lower floor plate bracing frame can reduce due to
CLT floor band compression acts on the larger caused loss of prestress of lower creep.The technical solution that the patent proposes is suitable for perpendicular
To bearing carrier, the solution for wooden horizontal carrier member is not suggested that.To solve the above problems, the utility model mentions
" a kind of prestressed slab component made of orthogonal laminated wood " out, it is intended to solve orthogonal glued wood component due to own material
Characteristic and cause applied prestressing force limited and the excessive problem of loss of prestress after prestressing force applied to presstressed reinforcing steel.
Utility model content
The purpose of this utility model is to solve orthogonal glued wood component to cause to apply in advance by own material properties
Limited and excessive to loss of prestress after the presstressed reinforcing steel application prestressing force problem of stress.
To achieve the goals above, the invention adopts the following technical scheme: a kind of prestressed slab based on orthogonal laminated wood
Component production method, it is characterised in that after presstressed reinforcing steel is located at the outermost wherein side laminate extraction of prefabricated orthogonal glued wood
In the geometric space of formation, in the outermost wherein side laminate extraction of prefabricated orthogonal glued wood after the completion of tension of prestressed tendon
The geometric space terminal mounting ends mould formed afterwards, then casting concrete and vibrate with it is levelling, when concrete strength is greater than
End mould is removed when equal to 2.5MPa, put when concrete curing to intensity is not less than the 75% of design value, and to answering in advance
Power muscle exposed parts carry out anti-corrosion measure, realize the prestressed slab component production based on orthogonal laminated wood, specifically include following step
It is rapid:
1) prefabricated component: when assembly, the substrate that orthogonal glued wood is located at top laminate is taken out in a symmetrical manner
Out, and it is pressed into plate, opens up groove at certain intervals on three faces in the geometric space then formed after extracting substrate out, made
It is made prefabricated orthogonal glued wood；
2) presstressed reinforcing steel is laid with: prefabricated orthogonal glued wood being put into pedestal and is laid with presstressed reinforcing steel in orthogonal glued wood
In the constituted geometric space of outer layer substrate spacing；
3) tension of prestressed tendon: presstressed reinforcing steel is fixed in both ends pier nose and is fixed using strand tapered anchorage, by means of connection
Device carries out tensioning using jack；
4) installation template: end die coating, which is smeared, is installed on tensioning side after release agent, hold mould piecemeal seam and with prefabricated orthogonal gluing
Plank (1) contact site adds sealing strip, and form surfacing uses 6mm thick steel plate；
5) casting concrete: by concreting in end mould and extract out substrate formed space in, and vibrated and
It is levelling；
6) form removal: the form removal when the intensity of the concrete of injection is not less than 2.5MPa；
7) concrete curing: at concrete surface sprinkling maintenance 7 days；
8) presstressed reinforcing steel is put: open when injecting concrete strength and being not less than the 75% of design strength and be put, using hand
It mentions abrasive cutoff saw and is symmetrically opened inwardly from the outside of plate and put；
9) antifouling paint, modified hydroxyl acrylic resin, fluorocarbon coating, cement mortar or ring presstressed reinforcing steel anti-corrosion: are used
Oxygen mortar is evenly coated in presstressed reinforcing steel exposed parts as anticorrosive paint, using brushing or spraying equipment, at least 2 layers of coating, applies
It avoids getting wet in 4 hours after layer construction；
10) transport is stacked: the board member to complete being transported to stacking at stacking, stacking number must not exceed three layers.
A kind of prestressed slab component production method based on orthogonal laminated wood, it is characterised in that prefabricated orthogonal gluing
Plank top does not extract 2~3 times with a thickness of adjacent laminate thickness of substrate out.
A kind of prestressed slab component production method based on orthogonal laminated wood, it is characterised in that the concrete poured
It can be replaced ultra-high performance concrete or epoxy resin mortar.
A kind of prestressed slab component production method based on orthogonal laminated wood, it is characterised in that opened up groove
Depth is the 1/4~1/2 of place base material thickness, and the sum of groove area of plane opened up in every one side is no more than the face area
50%.
The utility model has following beneficial effect:
1) prestressing force and armored concrete lift structure is antitorque and shear-carrying capacity, reduces deflection deformation, improves indirectly
The ability of orthogonal laminated wood resisting rolling shearing；
2) board member uses prefabrication, and since board member high-strength light amount is to convenient transportation, and in-site installation is to rising
It is low to which speed of application is fast to hang equipment requirement, shortens the construction period；
3) by prestress application on lower concrete, it is pre- to lead to institute in the frictional force and board member of concrete and board member
The shear key transmitting prestressing force for staying groove to be formed, reduces wooden board member because of the case where loss of prestress caused by creep.
4) member section is small, from heavy and light, has good Crack Closing and recoverable force performance, provides for designer
More diversified design scheme.
5) green energy conservation, low-carbon environment-friendly are environmentally friendly；
Detailed description of the invention:
Fig. 1 is a kind of prestressed slab component flow chart made of orthogonal laminated wood；
Fig. 2 is the stereoscopic schematic diagram of the prefabricated orthogonal glued wood of the utility model embodiment；
Fig. 3 is the prefabricated orthogonal glued wood longitudinal section of the utility model embodiment；
Fig. 4 is the prefabricated cross section the orthogonal glued wood A-A right side schematic view of the utility model embodiment；
Fig. 5 is schematic diagram on the upside of the prefabricated cross section orthogonal glued wood B-B of the utility model embodiment；
Fig. 6 is the prestressed slab component stereoscopic schematic diagram based on the production of orthogonal laminated wood of the utility model embodiment；
Fig. 7 is the prestressed slab component longitudinal section based on the production of orthogonal laminated wood of the utility model embodiment；
Fig. 8 is the prestressed slab concrete members and prestressing force based on the production of orthogonal laminated wood of the utility model embodiment
The stereoscopic schematic diagram of muscle.
In FIG. 1 to FIG. 8,1 is prefabricated orthogonal glued wood, 2 be concrete, 3 is presstressed reinforcing steel.
Specific embodiment:
For a clearer understanding of the technical features, objectives and effects of the utility model, now compareing Detailed description of the invention
Specific embodiment of the present utility model.As shown in Figure 1, a kind of prestressed slab component made of orthogonal laminated wood, special
Sign is that presstressed reinforcing steel 3 is located at the geometric space formed after the outermost wherein side laminate extraction of prefabricated orthogonal glued wood 1
Geometry that is interior, being formed after the prefabricated orthogonal outermost wherein side laminate extraction of glued wood 1 after the completion of 3 tensioning of presstressed reinforcing steel
Space terminal mounting ends mould, then casting concrete 2 and vibrate with it is levelling, when 2 intensity of concrete be more than or equal to 2.5MPa
When remove end mould, put when the maintenance of concrete 2 to intensity is not less than the 75% of design value, and exposed to presstressed reinforcing steel 3
Part carries out anti-corrosion measure, realizes the prestressed slab component production based on orthogonal laminated wood, specifically includes the following steps:
1) as shown in Fig. 2~Fig. 5, when assembly, orthogonal glued wood prefabricated component: is located to the substrate of top laminate
It extracts out in a symmetrical manner, and is pressed into 5 layers of orthogonal glued wood, three in geometric space then formed after extracting substrate out
Groove is opened up at certain intervals on a face, is fabricated to prefabricated orthogonal glued wood 1, and arrow represents real prefabricated orthogonal glued wood 1
Main intensity direction；
2) presstressed reinforcing steel is laid with: prefabricated orthogonal glued wood 1 being put into pedestal and is laid with presstressed reinforcing steel in orthogonal laminated wood
In 1 the constituted geometric space of outer layer substrate spacing of plate；
3) tension of prestressed tendon: presstressed reinforcing steel 3 is fixed in both ends pier nose and is fixed using strand tapered anchorage, by means of connection
Device carries out tensioning using jack；
4) installation template: end die coating, which is smeared, is installed on tensioning side after release agent, hold mould piecemeal seam and with prefabricated orthogonal gluing
1 contact site of plank adds sealing strip, and form surfacing uses 6mm thick steel plate；
5) casting concrete: by concrete 2 pour Yu Duanmo and extract out substrate formed space in, and vibrated and
It is levelling；
6) form removal: the form removal when the intensity of the concrete 2 of injection is not less than 2.5MPa；
7) concrete curing: at concrete surface sprinkling maintenance 7 days；
8) presstressed reinforcing steel is put: open when injecting 2 intensity of concrete and being not less than the 75% of design strength and be put, using hand
It mentions abrasive cutoff saw and is symmetrically opened inwardly from the outside of plate and put；
9) antifouling paint, modified hydroxyl acrylic resin, fluorocarbon coating, cement mortar or ring presstressed reinforcing steel anti-corrosion: are used
Oxygen mortar is evenly coated in 3 exposed parts of presstressed reinforcing steel as anticorrosive paint, using brushing or spraying equipment, at least 2 layers of coating, applies
It avoids getting wet in 4 hours after layer construction；
10) transport is stacked: the board member to complete being transported to stacking at stacking, stacking number must not exceed three layers.
Prefabricated 1 top of orthogonal glued wood does not extract 2.5 times with a thickness of adjacent laminate thickness of substrate out.
The height of the concrete 2 poured is 1.3 times for extracting base material thickness out.
The depth of opened up groove is the 1/3 of place base material thickness, and the sum of groove area of plane opened up in every one side is no
More than the 50% of the face area.
Claims (6)
1. a kind of prestressed slab component made of orthogonal laminated wood, by prefabricated orthogonal glued wood (1), concrete (2), pre-
Stress rib (3) collectively forms, it is characterised in that presstressed reinforcing steel (3) is located at prefabricated orthogonal glued wood (1) outermost wherein one
After the extraction of side laminate in the geometric space that is formed, institute's casting concrete (2) be located at prefabricated orthogonal glued wood (1) it is outermost its
In the geometric space formed after middle side laminate extraction, it is internal that presstressed reinforcing steel (3) is located at poured concrete (2).
2. a kind of prestressed slab component made of orthogonal laminated wood as described in claim 1, it is characterised in that it is prefabricated just
It hands over the substrate of the top laminate of glued wood (1) to be symmetrically alternatively arranged, extracts out in the geometric space formed after substrate
Groove is equipped on three faces at certain intervals, the spacing between groove is the width of 2 times of substrates.
3. a kind of prestressed slab component made of orthogonal laminated wood as described in claim 1, it is characterised in that using anti-
Rotten paint, modified hydroxyl acrylic resin, fluorocarbon coating, cement mortar or epoxy resin mortar are coated in prestressing force as anticorrosive paint
Muscle (3) exposed parts, at least 2 layers of coating.
4. a kind of prestressed slab component made of orthogonal laminated wood as described in claim 1, it is characterised in that it is prefabricated just
Glued wood (1) top is handed over not extract 2~5 times with a thickness of adjacent laminate thickness of substrate out.
5. a kind of prestressed slab component made of orthogonal laminated wood as described in claim 1, it is characterised in that pour
Concrete (2) can be replaced ultra-high performance concrete or epoxy resin mortar.
6. a kind of prestressed slab component made of orthogonal laminated wood as described in claim 1, it is characterised in that opened up
The depth of groove is the 1/4~1/2 of place base material thickness, and the sum of groove area of plane opened up in every one side is no more than the face face
Long-pending 50%.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821378259.XU CN208934217U (en) | 2018-08-22 | 2018-08-22 | A kind of prestressed slab component made of orthogonal laminated wood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821378259.XU CN208934217U (en) | 2018-08-22 | 2018-08-22 | A kind of prestressed slab component made of orthogonal laminated wood |
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| CN208934217U true CN208934217U (en) | 2019-06-04 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110696119A (en) * | 2019-10-14 | 2020-01-17 | 湖北康欣新材料科技有限责任公司 | Method for producing large-span plate member |
| CN112095909A (en) * | 2020-08-31 | 2020-12-18 | 同济大学建筑设计研究院(集团)有限公司 | Orthogonal laminated wood floor structure with bidirectional prestress |
| CN113152759A (en) * | 2021-04-26 | 2021-07-23 | 中国林业科学研究院木材工业研究所 | Assembled prestressing force reinforcing quadrature veneer wood floor |
| CN114000424A (en) * | 2021-10-28 | 2022-02-01 | 中铁建大桥工程局集团南方工程有限公司 | Steel-wood combined bridge deck structure and paving method thereof |
-
2018
- 2018-08-22 CN CN201821378259.XU patent/CN208934217U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110696119A (en) * | 2019-10-14 | 2020-01-17 | 湖北康欣新材料科技有限责任公司 | Method for producing large-span plate member |
| CN110696119B (en) * | 2019-10-14 | 2021-10-08 | 湖北康欣新材料科技有限责任公司 | Method for producing large-span plate member |
| CN112095909A (en) * | 2020-08-31 | 2020-12-18 | 同济大学建筑设计研究院(集团)有限公司 | Orthogonal laminated wood floor structure with bidirectional prestress |
| CN113152759A (en) * | 2021-04-26 | 2021-07-23 | 中国林业科学研究院木材工业研究所 | Assembled prestressing force reinforcing quadrature veneer wood floor |
| CN114000424A (en) * | 2021-10-28 | 2022-02-01 | 中铁建大桥工程局集团南方工程有限公司 | Steel-wood combined bridge deck structure and paving method thereof |
| CN114000424B (en) * | 2021-10-28 | 2023-08-18 | 中铁建大桥工程局集团南方工程有限公司 | Steel-wood combined bridge deck structure and paving method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Nanjing Yongchuang Municipal Engineering Co., Ltd Assignor: Nanjing Forestry University Contract record no.: X2019320000156 Denomination of utility model: Manufacturing method of prestressed plate components manufactured by adopting cross-laminated timbers Granted publication date: 20190604 License type: Common License Record date: 20191023 Assignee: Nanjing Xuantong Construction Engineering Co., Ltd Assignor: Nanjing Forestry University Contract record no.: X2019320000155 Denomination of utility model: Manufacturing method of prestressed plate components manufactured by adopting cross-laminated timbers Granted publication date: 20190604 License type: Common License Record date: 20191023 |
|
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Jiangsu Qingrui Concrete Construction Engineering Co., Ltd Assignor: Nanjing Forestry University Contract record no.: X2019320000169 Denomination of utility model: Manufacturing method of prestressed plate components manufactured by adopting cross-laminated timbers Granted publication date: 20190604 License type: Common License Record date: 20191028 |
|
| EE01 | Entry into force of recordation of patent licensing contract |