CN104863382A - Roof panel reinforcing method - Google Patents
Roof panel reinforcing method Download PDFInfo
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- CN104863382A CN104863382A CN201510267894.5A CN201510267894A CN104863382A CN 104863382 A CN104863382 A CN 104863382A CN 201510267894 A CN201510267894 A CN 201510267894A CN 104863382 A CN104863382 A CN 104863382A
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- stiffener
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- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
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Abstract
The invention discloses a rood panel reinforcing method. The method is characterized by comprising the following construction procedures: 1 cleaning structures on a roof concrete panel; 2 drilling a guide hole in the roof concrete panel; 3 propping the roof concrete panel with box iron; 4 chiseling the local concrete at the end of the roof concrete panel; 5 chiseling local roof concrete panels at a reinforcing rib supporting point; 6 installing an adjusting bolt and an adjusting nut in sequence at the reinforcing rib supporting point; 7 pouring and tamping inflatable concrete including thin stone at the reinforcing rib supporting position; 8 after locating an anchorage device, pouring and tamping the inflatable concrete including thin stone; 9 after certain strength is achieved in the inflatable concrete including thin stone, conducting tensioning; 10 conducting grouting treatment to the guide hole, and fastening the reinforcing rib with the anchorage device; 11 conducting sealing treatment to the joint between the reinforcing rib and the anchorage device with building sealant; 12 applying a polyurethane coating; 13 laying modified asphalt membranes; 14 pouring and tamping an expanded and vitrified small ball lightweight screed protection layer; 15 dismantling the box iron used for propping the roof concrete panel; 16 jetting concrete to the lower portion of the roof concrete panel. According to the roof panel reinforcing method, the mechanical property is good, and the construction operation is safe and reliable.
Description
Technical field
The present invention relates to the roof panel that a kind of bearing capacity is inadequate, particularly a kind of roof panel reinforcement means.
Background technology
After roof panel quality occurs that defect or accessible roof increase load, roof panel bearing capacity can not reach requirement, roof panel will carry out pattern handling in this case, after process, roof panel bending resistance shear resistance can be increased, but currently available technology has two problems: one is be difficult to the intensive aspect of roof panel and the organic formation entirety of original structure, and two is easy seepages after roof panel process.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of reliable construction quality and the good roof panel processing method of water resistance, solves leakage problems after the intensive aspect of roof panel and original structure integrated carrying problem and process.
The principle of the invention is: the supporting-point arranging stiffener, then tightened by supporting-point place and execute an adjusting bolt, it is made to apply external force to stiffener downwards at supporting-point, and make stiffener produce an external force upwards, Unloading Effect is played to roof panel, make roof panel become eccentric compression member by flexural member, make former roof panel on the one hand and strengthen the overall load of physical efficiency, improve the supporting capacity of roof panel on the other hand.Multiple waterproof measure is taked to avoid seepage according to reinforcement characteristics in addition.
Because plate end 1/4 span position shearing is less, roof panel stiffener supporting-point is arranged on from plate end 1/4 span position, roof panel cuts into up big and down small terrace with edge at stiffener supporting-point position, top cross-section is the square of length 60mm, the square of to be length be in bottom section 40mm, in the middle of terrace with edge, adjusting bolt is set, adjusting bolt is exposed roof panel part and is arranged screw thread, adjusting bolt diameter is 25mm, be embedded in the adjusting bolt middle welding seal ring of roof panel, seal ring diameter 35mm, seal ring thickness is 3mm, because outside moisture easily infiltrates along adjusting bolt radial direction, seal ring object blocks infiltration path, terrace with edge bottom is watered and is smash expansion pea gravel concreten, expansion pea gravel concreten intensity is C35, expansion pea gravel concreten produces microdilatancy after watering and smashing, compactness between newly placed concrete and former roof panel concrete is strengthened, terrace with edge top filling waterproofing mortar, waterproofing mortar thickness is 15 ~ 20mm, waterproofing mortar avoids this position to become waterproof weak link as waterproof reinforced layer.Connect regulating nut bottom adjusting bolt, regulating nut is screwed in adjusting bolt and is connected by screw thread, regulating nut bottom welding steel cushion block, and steel cushion block lower central arranges semi-circular recesses, and stiffener is welded to connect after embedding groove.Rotate regulating nut with spanner during tension operation, regulating nut upwards screws in adjusting bolt screw thread, drives steel cushion block and stiffener synchronously to rise.
Roof panel plate end cuts quadrate hole within the scope of nearside body of wall 150 ~ 200mm, roof panel is drilled with oblique pilot hole, pilot hole diameter 2mm larger than stiffener diameter, stiffener connects with ground tackle after entering square hole through the pilot hole of roof panel, square hole waters smashes expansion pea gravel concreten, expansion pea gravel concreten intensity is C35, expansion pea gravel concreten produces microdilatancy after watering and smashing, compactness between newly placed concrete and former roof panel concrete is strengthened, expansion pea gravel concreten top brushing polyurethane coating film, polyurethane coating film avoids this position to become waterproof weak link as waterproof reinforced layer.Modified asphalt waterproof coiled material is pasted on polyurethane coating film top, arranges expanded and vitrified small ball lightweight screed topping above modified asphalt waterproof coiled material, and topping adopts light material to alleviate roofing load.Arrange sprayed mortar at the bottom of roof panel plate, sprayed mortar thickness is 80 ~ 90mm.Stiffener and ground tackle handing-over position building sealant carry out encapsulation process, prevent this position from occurring seepage.
Stiffener stretch-draw parameter is determined by following:
Stiffener adopts II level reinforcing bar, and control stress for prestressing value is 0.75 rebar standards intensity, and control stress for prestressing value is 562.5MPa.If the former roof panel concreting time is more than or equal to 3 years, its concrete shrinkage, creeping can be considered stable, the loss of prestress of stiffener can be omitted and be disregarded, only need consider by the loose part caused of reinforcing bar, when constructing, reinforcing bar super 5% can be taked to make up, and the stretching force of reinforcing bar is defined as 1.05 control stress for prestressing, i.e. 590.625MPa; If the former roof panel concreting time is within 3 years, for the purpose of conservative, the stretching force of reinforcing bar is defined as 1.08 control stress for prestressing, i.e. 607.5MPa.
Stiffener stretch-draw vertical displacement δ value calculates by following formula,
L
1for the oblique segment length of stiffener, L
2for stiffener horizontal section length, σ
kfor the stretching force of stiffener, E
sfor the modulus of elasticity of reinforcing bar.
Construction sequence comprises:
(1) works above roof panel is cleared up.
(2) roofing twist drill pilot hole.
(3) with channel-section steel support top roof panel.
(4) cut roof panel plate end office (EO) portion's concrete, cut quadrate hole.
(5) cut local, stiffener supporting-point position roof panel, terrace with edge cut a hole into by roof panel.
(6) at stiffener supporting-point position, adjusting bolt and regulating nut are installed successively, steel cushion block is welded on regulating nut, then stiffener is welded with steel cushion block.
(7) the expansion pea gravel concreten smashing stiffener supporting portion is watered, by expansion pea gravel concreten surface dabbing after-pouring waterproofing mortar after 3 days.
(8) pass pilot hole by oblique for stiffener section, stiffener end connects with ground tackle, and ground tackle bracing members is located temporarily, and complete the watering in ground tackle location smashes expansion pea gravel concreten, and expansion pea gravel concreten waters the bracing members dismantling location temporarily in the process of smashing.
Possess after some strength until expansion pea gravel concreten after (9) 7 days and carry out stretch-draw.
Adjusting bolt is tightened by spanner, applying stretch-draw is carried out to stiffener, stretch-draw divides to be carried out for three times, first time stretch-draw make stiffener upwards vertical displacement be 1/3 δ, δ is stretch-draw length, interval 1h after implement second time stretch-draw, second time stretch-draw make stiffener upwards vertical displacement be 1/3 δ, interval 1h after implement third time stretch-draw, third time stretch-draw make stiffener upwards vertical displacement be 1/3 δ.
(10) after stretch-draw, injecting treatment is carried out to pilot hole, close the space between stiffener and pilot hole, with ground tackle, stiffener is fastening.
(11) with building sealant, encapsulation process is carried out to stiffener and ground tackle handing-over position.
(12) roof panel plate end anchoring position brushing polyurethane coating film on expansion pea gravel concreten.
(13) paving modified asphalt waterproof coiled material after polyurethane coating film brushing.
(14) water after modified asphalt waterproof coiled material paving and smash expanded and vitrified small ball lightweight screed topping.
(15) channel-section steel of support top roof panel is removed.
Sprayed mortar is implemented in roof panel bottom, sprayed mortar thickness is 80 ~ 90mm, sprayed mortar is constructed at twice, construction of shotcrete thickness is 40 ~ 50mm for the first time, second time construction of shotcrete thickness is 40 ~ 50mm, and the time interval of the two-layer injection in front and back should not be less than concrete final setting time.
Sprayed mortar is by following enforcement:
Spraying operation face is answered pre-plugged jet thickness mark.Before sprayed mortar, working face must be sprayed water moistening, avoids working face hyperabsorption moisture from sprayed mortar.But water spray can not be too many, working face can not be made to leave excessive moisture.Water spray adopts shower nozzle to carry out.Shower nozzle to be tried one's best vertical construction face when constructing, and the distance kept with working face should ensure that sprayed mortar is closely knit.If shower nozzle from working face too close to, the concrete of injection can be washed the concrete sprayed open, if from too away from, then concrete density is poor.Operating personnel should stand motionless, hold shower nozzle, make shower nozzle from top to bottom, from the movement resembling fan-type to another side, once do not spray at a place and reach whole thickness, sprayed mortar should be made to form uniform one deck.If find that the concrete ejected is uneven, must shower nozzle be made immediately to leave working face, until the concrete ejected evenly continues normally sprayed construction again.In course of injection, if find concrete surface dry, loose, drop, slippage or drawing crack phenomenon time, should remove in time, again spray.
The present invention destroys less to former room panel structure, and implement prestressed facility simply effective, constructing operation is convenient, effectively can improve the intensity after roof panel process, and water resistance is good.
Accompanying drawing explanation
Fig. 1 is roof panel prestressing force stiffener supporting-point position structure, and Fig. 2 is roof panel prestressing force stiffener anchoring position structure.
Accompanying drawing mark: 1, adjusting bolt, 2, regulating nut, 3, steel cushion block; 4, stiffener; 5, steel seal ring, 6, expansion pea gravel concreten, 7, waterproofing mortar; 8, ground tackle; 9, building sealant, 10, polyurethane coating film, 11, modified asphalt waterproof coiled material; 12, expanded and vitrified small ball lightweight screed topping, 13, sprayed mortar.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present embodiment is described in detail.
Certain engineering roof panel is at final acceptance of construction 3 years laggard row building reconstructions, roofing prepares to be transformed into ecologic planting roofing, planted roof has certain load to increase, the bearing capacity of original roofing can not reach requirement, must reinforce former roofing, also will consider the antiseep of roofing in addition, roof panel span is 5.6m.
In the present embodiment, roof panel stiffener supporting-point is arranged on from plate end 1.6m position, roof panel cuts into up big and down small terrace with edge at stiffener supporting-point position, top cross-section is the square of length 60mm, the square of to be length be in bottom section 40mm, in the middle of terrace with edge, adjusting bolt 1 is set, adjusting bolt 1 is exposed roof panel part and is arranged screw thread, adjusting bolt 1 diameter is 25mm, be embedded in the adjusting bolt 1 middle welding seal ring 5 of roof panel, seal ring 5 diameter 35mm, seal ring 5 thickness is 3mm, terrace with edge bottom is watered and is smash expansion pea gravel concreten 6, expansion pea gravel concreten 6 intensity is C35, terrace with edge top filling waterproofing mortar 7, waterproofing mortar 7 thickness is 18mm.Connect regulating nut 2 bottom adjusting bolt 1, regulating nut 2 screws in adjusting bolt 1 screw thread and connects, and regulating nut 2 bottom welding steel cushion block 3, steel cushion block 3 lower central arranges semi-circular recesses, and stiffener 4 is welded to connect after embedding groove.
Roof panel plate end cuts quadrate hole within the scope of nearside body of wall 180mm, oblique pilot hole reserved by roof panel, pilot hole diameter 2mm larger than stiffener 4 diameter, connect with ground tackle 8 after the pilot hole that stiffener 4 passes roof panel enters square hole, square hole waters smashes expansion pea gravel concreten 6, expansion pea gravel concreten 6 intensity is C35, expansion pea gravel concreten 6 top brushing polyurethane coating film 10, modified asphalt waterproof coiled material 11 is pasted on polyurethane coating film 10 top, modified asphalt waterproof coiled material 11 arranges expanded and vitrified small ball lightweight screed topping 12 above, sprayed mortar 13 is set at the bottom of roof panel plate, sprayed mortar 13 thickness is 80mm, stiffener 4 and ground tackle 8 join position building sealant 9 and carry out encapsulation process.
The stretching force of reinforcing bar is defined as 590.625MPa, and stiffener stretch-draw vertical displacement δ value is defined as 25.8mm.
Construction sequence comprises:
(1) works above roof panel is cleared up.
(2) roofing twist drill pilot hole.
(3) with channel-section steel support top roof panel.
(4) cut roof panel plate end office (EO) portion's concrete, cut quadrate hole.
(5) cut local, stiffener 4 supporting-point position roof panel, terrace with edge cut a hole into by roof panel.
(6) at stiffener supporting-point position, adjusting bolt 1 and regulating nut 2 are installed successively, steel cushion block 3 is welded on regulating nut 2, then stiffener 4 is welded with steel cushion block 3.
(7) the expansion pea gravel concreten smashing stiffener 4 supporting portion is watered after 6,3 days by surperficial for expansion pea gravel concreten 6 dabbing after-pouring waterproofing mortar 7.
(8) pilot hole is passed by oblique for stiffener 4 section, stiffener 4 end connects with ground tackle 8, ground tackle 8 is located with bracing members temporarily, and ground tackle 8 is located complete watering and smash expansion pea gravel concreten 6, and expansion pea gravel concreten 6 waters the bracing members of the interim location of dismounting in the process of smashing.
Possess after some strength until expansion pea gravel concreten 6 after (9) 7 days and carry out stretch-draw.
Adjusting bolt 1 is tightened by spanner, applying stretch-draw is carried out to stiffener 4, stretch-draw divides to be carried out for three times, first time stretch-draw make stiffener 4 upwards vertical displacement be 8.6mm, second time stretch-draw is implemented after interval 1h, second time stretch-draw make stiffener 4 upwards vertical displacement be 8.6mm, interval 1h after implement third time stretch-draw, third time stretch-draw make stiffener 4 upwards vertical displacement be 8.6mm.
(10) after stretch-draw, injecting treatment is carried out to pilot hole, close the space between stiffener 4 and pilot hole, with ground tackle 8 by fastening for stiffener 4.
(11) join position with building sealant 9 pairs of stiffeners 4 and ground tackle 8 and carry out encapsulation process.
(12) roof panel plate end anchoring position brushing polyurethane coating film 10 on expansion pea gravel concreten 6.
(13) paving modified asphalt waterproof coiled material 11 after polyurethane coating film 10 brushing.
(14) water after modified asphalt waterproof coiled material 11 paving and smash expanded and vitrified small ball lightweight screed topping 12.
(15) channel-section steel of support top roof panel is removed.
Sprayed mortar is implemented in roof panel bottom, sprayed mortar thickness is 80mm, and sprayed mortar is constructed at twice, and construction of shotcrete thickness is 40mm for the first time, second time construction of shotcrete thickness is 40mm, and the time interval of the two-layer injection in front and back should not be less than concrete final setting time.
Sprayed mortar is by following enforcement:
Spraying operation face is answered pre-plugged jet thickness mark.Before sprayed mortar, working face must be sprayed water moistening, avoids working face hyperabsorption moisture from sprayed mortar.But water spray can not be too many, working face can not be made to leave excessive moisture.Water spray adopts shower nozzle to carry out.Shower nozzle to be tried one's best vertical construction face when constructing, and the distance kept with working face should ensure that sprayed mortar is closely knit.If shower nozzle from working face too close to, the concrete of injection can be washed the concrete sprayed open, if from too away from, then concrete density is poor.Operating personnel should stand motionless, hold shower nozzle, make shower nozzle from top to bottom, from the movement resembling fan-type to another side, once do not spray at a place and reach whole thickness, sprayed mortar should be made to form uniform one deck.If find that the concrete ejected is uneven, must shower nozzle be made immediately to leave working face, until the concrete ejected evenly continues normally sprayed construction again.In course of injection, if find concrete surface dry, loose, drop, slippage or drawing crack phenomenon time, should remove in time, again spray.
Claims (4)
1. a roof panel reinforcement means, is characterized in that construction sequence comprises:
(1) works above roof panel is cleared up;
(2) roofing twist drill pilot hole;
(3) with channel-section steel support top roof panel;
(4) cut roof panel plate end office (EO) portion's concrete, cut quadrate hole;
(5) cut local, stiffener supporting-point position roof panel, terrace with edge cut a hole into by roof panel;
(6) at stiffener supporting-point position, adjusting bolt and regulating nut are installed successively, steel cushion block is welded on regulating nut, then stiffener is welded with steel cushion block;
(7) the expansion pea gravel concreten smashing stiffener supporting portion is watered, by expansion pea gravel concreten surface dabbing after-pouring waterproofing mortar after 3 days;
(8) pass pilot hole by oblique for stiffener section, stiffener end connects with ground tackle, and ground tackle bracing members is located temporarily, and complete the watering in ground tackle location smashes expansion pea gravel concreten, and expansion pea gravel concreten waters the bracing members dismantling location temporarily in the process of smashing;
Possess after some strength until expansion pea gravel concreten after (9) 7 days and carry out stretch-draw;
Adjusting bolt is tightened by spanner, applying stretch-draw is carried out to stiffener, stretch-draw divides to be carried out for three times, first time stretch-draw make stiffener upwards vertical displacement be 1/3 δ, δ is stretch-draw length, interval 1h after implement second time stretch-draw, second time stretch-draw make stiffener upwards vertical displacement be 1/3 δ, interval 1h after implement third time stretch-draw, third time stretch-draw make stiffener upwards vertical displacement be 1/3 δ;
(10) after stretch-draw, injecting treatment is carried out to pilot hole, close the space between stiffener and pilot hole, with ground tackle, stiffener is fastening;
(11) with building sealant, encapsulation process is carried out to stiffener and ground tackle handing-over position;
(12) roof panel plate end anchoring position brushing polyurethane coating film on expansion pea gravel concreten;
(13) paving modified asphalt waterproof coiled material after polyurethane coating film brushing;
(14) water after modified asphalt waterproof coiled material paving and smash expanded and vitrified small ball lightweight screed topping;
(15) channel-section steel of support top roof panel is removed;
(16) sprayed mortar is implemented in roof panel bottom, sprayed mortar thickness is 80 ~ 90mm, sprayed mortar is constructed at twice, construction of shotcrete thickness is 40 ~ 50mm for the first time, second time construction of shotcrete thickness is 40 ~ 50mm, and the time interval of the two-layer injection in front and back should not be less than concrete final setting time.
2. roof panel reinforcement means according to claim 1, is characterized in that stiffener stretch-draw parameter is determined by following:
Stiffener adopts II level reinforcing bar, and control stress for prestressing value is 0.75 rebar standards intensity, and control stress for prestressing value is 562.5MPa; If the former roof panel concreting time is more than or equal to 3 years, the stretching force of reinforcing bar is defined as 590.625MPa; If the former roof panel concreting time, the stretching force of reinforcing bar was defined as 607.5MPa within 3 years.
3. roof panel reinforcement means according to claim 1, is characterized in that stiffener stretch-draw vertical displacement δ value calculates by following formula,
L
1for the oblique segment length of stiffener, L
2for stiffener horizontal section length, σ
kfor the stretching force of stiffener, E
sfor the modulus of elasticity of reinforcing bar.
4. roof panel reinforcement means according to claim 1, is characterized in that sprayed mortar is by following enforcement: spraying operation face is answered pre-plugged jet thickness mark; Before sprayed mortar, working face must be sprayed water moistening, avoids working face hyperabsorption moisture from sprayed mortar; But water spray can not be too many, working face can not be made to leave excessive moisture; Water spray adopts shower nozzle to carry out; Shower nozzle to be tried one's best vertical construction face when constructing, and the distance kept with working face should ensure that sprayed mortar is closely knit; If shower nozzle from working face too close to, the concrete of injection can be washed the concrete sprayed open, if from too away from, then concrete density is poor; Operating personnel should stand motionless, hold shower nozzle, make shower nozzle from top to bottom, from the movement resembling fan-type to another side, once do not spray at a place and reach whole thickness, sprayed mortar should be made to form uniform one deck; If find that the concrete ejected is uneven, must shower nozzle be made immediately to leave working face, until the concrete ejected evenly continues normally sprayed construction again; In course of injection, if find concrete surface dry, loose, drop, slippage or drawing crack phenomenon time, should remove in time, again spray.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510267894.5A CN104863382B (en) | 2013-10-19 | 2013-10-19 | Roof boarding reinforcement means |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310510819.8A CN103526953B (en) | 2013-10-19 | 2013-10-19 | The roof panel processing method that bearing capacity is inadequate |
| CN201510267894.5A CN104863382B (en) | 2013-10-19 | 2013-10-19 | Roof boarding reinforcement means |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310510819.8A Division CN103526953B (en) | 2013-10-19 | 2013-10-19 | The roof panel processing method that bearing capacity is inadequate |
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| Publication Number | Publication Date |
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| CN104863382A true CN104863382A (en) | 2015-08-26 |
| CN104863382B CN104863382B (en) | 2017-03-08 |
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| CN201310510819.8A Active CN103526953B (en) | 2013-10-19 | 2013-10-19 | The roof panel processing method that bearing capacity is inadequate |
| CN201510267894.5A Active CN104863382B (en) | 2013-10-19 | 2013-10-19 | Roof boarding reinforcement means |
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| CN201310510819.8A Active CN103526953B (en) | 2013-10-19 | 2013-10-19 | The roof panel processing method that bearing capacity is inadequate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105133492A (en) * | 2015-09-24 | 2015-12-09 | 中交第二航务工程局有限公司 | Novel concrete bridge deck with channels at bottom |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104481074B (en) * | 2014-10-23 | 2017-06-30 | 中国二十冶集团有限公司 | The construction method of heavy grade Sloping roof techonosphere antiskid |
| CN107327157B (en) * | 2017-09-04 | 2023-12-15 | 安徽津达建材股份有限公司 | Reinforced structure of concrete floor |
| CN108386001A (en) * | 2018-03-09 | 2018-08-10 | 北京航空航天大学 | A kind of structural strengthening technique based on puffing concrete |
| CN112942832B (en) * | 2021-02-03 | 2022-07-29 | 湖南宝家云建筑工程管理有限公司 | Building main body structure building method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3306182A1 (en) * | 1983-02-23 | 1984-08-23 | Johann 8351 Loham Wenninger | Column foot |
| JP2012072604A (en) * | 2010-09-29 | 2012-04-12 | Nippon Steel Corp | Reinforcing panel and reinforcing structure |
| CN202483089U (en) * | 2012-03-17 | 2012-10-10 | 叶长青 | Waterproof rigid roof |
| CN202530637U (en) * | 2012-03-31 | 2012-11-14 | 叶长青 | Inaccessible roof structure |
| CN102828623A (en) * | 2012-08-30 | 2012-12-19 | 北京首钢建设集团有限公司 | Construction method for maintaining and locally reinforcing reinforced concrete structure |
| CN202787690U (en) * | 2012-08-24 | 2013-03-13 | 叶长青 | Transverse connection construction of sandwich roof plate |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86102326A (en) * | 1986-04-23 | 1987-03-11 | 夏英湖 | The storey-plus extension project in the old room of low layer, greening |
| CN2257561Y (en) * | 1996-06-21 | 1997-07-09 | 韩生健 | Thermal insulation energy saving, greening device for roofing |
| CN1431368A (en) * | 2003-01-16 | 2003-07-23 | 林廷勇 | Artificial lawn used for curing sandy, its producing method and operation method |
| CN2771365Y (en) * | 2004-10-08 | 2006-04-12 | 邹新建 | Plastic board with primary and secondary drainage passage and water storage for greening |
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- 2013-10-19 CN CN201510267894.5A patent/CN104863382B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3306182A1 (en) * | 1983-02-23 | 1984-08-23 | Johann 8351 Loham Wenninger | Column foot |
| JP2012072604A (en) * | 2010-09-29 | 2012-04-12 | Nippon Steel Corp | Reinforcing panel and reinforcing structure |
| CN202483089U (en) * | 2012-03-17 | 2012-10-10 | 叶长青 | Waterproof rigid roof |
| CN202530637U (en) * | 2012-03-31 | 2012-11-14 | 叶长青 | Inaccessible roof structure |
| CN202787690U (en) * | 2012-08-24 | 2013-03-13 | 叶长青 | Transverse connection construction of sandwich roof plate |
| CN102828623A (en) * | 2012-08-30 | 2012-12-19 | 北京首钢建设集团有限公司 | Construction method for maintaining and locally reinforcing reinforced concrete structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105133492A (en) * | 2015-09-24 | 2015-12-09 | 中交第二航务工程局有限公司 | Novel concrete bridge deck with channels at bottom |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103526953B (en) | 2016-04-27 |
| CN104863382B (en) | 2017-03-08 |
| CN103526953A (en) | 2014-01-22 |
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