CN105625744A - Seepage prevention structure for suspension rod for steel girder reinforcement of aerated concrete roof and construction method of seepage prevention structure - Google Patents
Seepage prevention structure for suspension rod for steel girder reinforcement of aerated concrete roof and construction method of seepage prevention structure Download PDFInfo
- Publication number
- CN105625744A CN105625744A CN201610131569.0A CN201610131569A CN105625744A CN 105625744 A CN105625744 A CN 105625744A CN 201610131569 A CN201610131569 A CN 201610131569A CN 105625744 A CN105625744 A CN 105625744A
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- China
- Prior art keywords
- concrete roof
- suspension rod
- roof boarding
- gas concrete
- leakage
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000000725 suspension Substances 0.000 title claims abstract description 40
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 31
- 239000010959 steel Substances 0.000 title claims abstract description 31
- 238000010276 construction Methods 0.000 title claims abstract description 10
- 230000002265 prevention Effects 0.000 title abstract 8
- 230000002787 reinforcement Effects 0.000 title abstract 6
- 239000011527 polyurethane coating Substances 0.000 claims abstract description 45
- 239000004745 nonwoven fabric Substances 0.000 claims abstract description 20
- 239000011083 cement mortar Substances 0.000 claims abstract description 4
- 239000000843 powder Substances 0.000 claims abstract description 4
- 239000011248 coating agent Substances 0.000 claims description 28
- 238000000576 coating method Methods 0.000 claims description 28
- 238000005728 strengthening Methods 0.000 claims description 27
- 239000004570 mortar (masonry) Substances 0.000 claims description 21
- 239000002002 slurry Substances 0.000 claims description 12
- 238000007667 floating Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- 239000000428 dust Substances 0.000 claims description 6
- 238000012423 maintenance Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 239000004568 cement Substances 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 claims description 3
- 239000004576 sand Substances 0.000 claims description 3
- 238000007711 solidification Methods 0.000 claims description 3
- 230000008023 solidification Effects 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 230000008901 benefit Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000007790 scraping Methods 0.000 description 2
- 238000004078 waterproofing Methods 0.000 description 2
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004643 material aging Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0281—Repairing or restoring roofing or roof covering
Abstract
The invention belongs to the technical field of reinforcement reconstruction of old neighborhoods and relates to a seepage prevention structure for a suspension rod for steel girder reinforcement of an aerated concrete roof and a construction method of the seepage prevention structure. The seepage prevention structure comprises the aerated concrete roof with holes, and an integral T-shaped seepage-proof layer is arranged inside and outside each hole and comprises seepage prevention powder, a lower polyurethane coating, nonwoven fabrics, an upper polyurethane coating and a cement mortar protection layer sequentially from bottom to top. On the basis of steel girder reinforcement of the aerated concrete roof of the old neighborhoods, a waterproof layer of the suspension rod is subjected to seepage prevention treatment, and the problem of roof seepage caused by steel girder reinforcement is well solved. In addition, the seepage prevention structure is convenient and simple in construction, low in manufacturing cost and widely applicable to reinforcement reconstruction of roofs of old buildings.
Description
Technical field
The present invention relates to a kind of old community strengthening reconstruction structure and constructional method thereof, especially a kind of gas concrete roof boarding strengthening of steel bridge suspension rod place's leakage-proof structure and constructional method, belong to old community strengthening reconstruction technical field.
Background technology
Twentieth century the seventies and eighties, some old communities adopt prefabricated aerated concrete panel as roof boarding. This kind of gas concrete roof boarding band structure looks for slope, and easy construction, cost are low, are widely used in old house building. Through wind and rain baptism and the material aging of 30 or 40 years, these old buildings occur that long-term stiffness is poor, component poor durability and the problem such as roof boarding integral rigidity is poor, seriously have impact on the safe handling of building. For this reason, gas concrete roof boarding strengthening of steel bridge is adopted to be a kind of solid measure, but, needing the punching of former gas concrete roof boarding is placed suspension rod in the process reinforced, this just destroys the waterproof layer of original roofing, affects roof leakage.
Summary of the invention
Based on the problems referred to above, the present invention proposes a kind of gas concrete roof boarding strengthening of steel bridge suspension rod place's leakage-proof structure and constructional method. Mainly in order to solve the leak proof technology problem that in the strengthening reconstruction process of old community, roof waterproof layer is destroyed.
The technical scheme of the present invention is as follows:
A kind of gas concrete roof boarding strengthening of steel bridge suspension rod place leakage-proof structure, comprise gas concrete roof boarding, hole offered by described gas concrete roof boarding, hole center is inserted with a suspension rod, described suspension rod one end is stretched in described gas concrete roof boarding through hole, the other end is connected with girder steel, form strengthening of steel bridge suspension rod, described hole inside and outer setting have holistic T-shaped application of anti-leakage layers, described application of anti-leakage layers wraps suspension rod, described application of anti-leakage layers is followed successively by leak stopping spirit from bottom to up, lower floor's polyurethane coating, non-woven fabrics, upper strata polyurethane coating and coating mortar, wherein, described leak stopping spirit and lower floor's polyurethane coating are from bottom to top arranged on described hole inside respectively, described non-woven fabrics is laid on lower floor's polyurethane coating upper surface and stretches out the outer edge of hole and set up on gas concrete roof boarding outside surface, described upper strata polyurethane coating is wrapped in non-woven fabrics top and periphery, and described upper strata polyurethane coating outer wrap has coating mortar.
Further, described hole is cube structure, and it is of a size of length �� wide �� height=60mm �� 60mm �� 30mm.
Further, the total coating thickness of described leak stopping spirit is 20mm.
Further, the outer edge 30mm of hole is stretched out in the every side of described non-woven fabrics.
Further, the thickness of described coating mortar is apart from the outstanding 2cm of gas concrete roof boarding end face.
Further, the strength of cement mortar grade of described coating mortar is not less than M5.
Further, the described coating mortar floating press polish in surface.
Further, described upper strata polyurethane coating outside surface is circular arc.
The constructional method of above-mentioned gas concrete roof boarding strengthening of steel bridge suspension rod place leakage-proof structure, adopts following steps:
Step one: the hole cutting designed size on the gas concrete roof boarding of suspension rod periphery, blows floating dust in hole with oil-free air compressor, and prevent dust or the grains of sand from entering in hole;
Step 2: configuration leak stopping spirit slurry: by leak stopping spirit according to powder: water=1: uniformly slurry without agglomerate is stand-by for the ratio stirring at low speed of 0.3;
Step 3: smear rigid waterproof layer: scraping the first layer leak stopping spirit slurry with scraper plate or trowel, after coating hardens, timely fog curing, vertically scrapes the second layer after 90min, after being all painted with, carry out 48h maintenance;
Step 4: smear flexible waterproof layer: Xian Tu lower floor polyurethane coating, lays non-woven fabrics after solidification on lower floor's polyurethane coating, then smears upper strata polyurethane coating to prevent leakage is scraped along the vertical direction of described lower floor polyurethane coating;
Step 5: upper strata polyurethane coating carries out coating mortar construction after solidifying, floating press polish is answered on coating mortar surface, tackles the timely maintenance of sand-cement slurry after construction, and curing time is not less than 7d.
Useful effect:
The most significant advantage of the present invention is that the flexible water construction adopting leak stopping spirit rigid waterproofing and polyurethane coating to combine with non-woven fabrics is simple and convenient, roof leakage is effective, cost is low, solves well and adopts gas concrete roof boarding strengthening of steel bridge suspension rod place's leakproof problem. When economic condition is permitted, if this technology is applied, gas concrete roof boarding strengthening of steel bridge suspension rod place, existing old community leak-proof measure will have significant economic benefit and social benefit.
Accompanying drawing explanation
Fig. 1 is gas concrete roof boarding strengthening of steel bridge suspension rod place of the present invention leakage-proof structure vertical view;
Fig. 2 is gas concrete roof boarding strengthening of steel bridge suspension rod place of the present invention leakage-proof structure sectional view.
In figure, 1: leak stopping spirit; 2: lower floor's polyurethane coating; 3: non-woven fabrics; 4: upper strata polyurethane coating; 5: coating mortar; 6: suspension rod; 7: gas concrete roof boarding; 8: hole.
Embodiment
A kind of gas concrete roof boarding strengthening of steel bridge suspension rod place leakage-proof structure of the present invention, see, shown in Fig. 1 to 2, comprising gas concrete roof boarding 7, gas concrete roof boarding 7 is offered hole 8, hole 8 is cube structure, and it is of a size of length �� wide �� height=60mm �� 60mm �� 30mm. Hole 8 center is inserted with a suspension rod 6; suspension rod 6 one end is stretched in gas concrete roof boarding 7 through hole 8; the other end is connected with girder steel; form strengthening of steel bridge suspension rod; hole 8 inside and outer setting have holistic T-shaped application of anti-leakage layers; application of anti-leakage layers wraps suspension rod 6, and application of anti-leakage layers is followed successively by leak stopping spirit 1, lower floor's polyurethane coating 2, non-woven fabrics 3, upper strata polyurethane coating 4 and coating mortar 5 from bottom to up. Wherein, it is inner that leak stopping spirit 1 and lower floor's polyurethane coating 2 are from bottom to top arranged on described hole 8 respectively; the total coating thickness of leak stopping spirit 1 is 20mm; non-woven fabrics 3 is laid on lower floor's polyurethane coating 2 upper surface and stretches out the outer edge of hole 8 and set up on gas concrete roof boarding 7 outside surface; the outer edge 30mm of hole 8 is stretched out in the every side of non-woven fabrics 3; upper strata polyurethane coating 4 is wrapped in non-woven fabrics 3 top and periphery, and upper strata polyurethane coating 4 outer wrap has coating mortar 5. The thickness of coating mortar 5 is apart from the outstanding 2cm of gas concrete roof boarding 7 end face. Wherein, the strength of cement mortar grade of coating mortar 5 is not less than M5, its surperficial floating press polish, and upper strata polyurethane coating 4 outside surface is circular arc.
The present invention's described leak stopping spirit used 1 is a kind of protection against the tide, impervious rigidity water-proofing material, described lower floor polyurethane coating 2 and upper strata polyurethane coating 4 be a kind of flexible and cracking are had relatively strong adaptability high tensile, good weatherability, waterproof every the flexible waterproof coating of gas, described non-woven fabrics 3 is a kind of air-permeable dampproof, drying is antibacterial, price is low, the environment-friendly materials that can be recycled. And above-mentioned leak stopping spirit 1, lower floor's polyurethane coating 2 and upper strata polyurethane coating 4 and non-woven fabrics 3 are commercially available current material.
The constructional method of above-mentioned gas concrete roof boarding strengthening of steel bridge suspension rod place leakage-proof structure, adopts following steps:
Step one: the hole 8 cutting designed size on the gas concrete roof boarding 7 of suspension rod 6 periphery, blows floating dust in hole 8 with oil-free air compressor, and prevents dust or the grains of sand from entering in hole 8;
Step 2: configuration leak stopping spirit 1 slurry: by leak stopping spirit 1 according to powder: water=1: uniformly slurry without agglomerate is stand-by for the ratio stirring at low speed of 0.3;
Step 3: smear rigid waterproof layer: scraping the first layer leak stopping spirit 1 slurry with scraper plate or trowel, after coating hardens (have gentle hands pressure does not stay fingerprint), timely fog curing, vertically scrapes the second layer after 90min, after being all painted with, carry out 48h maintenance;
Step 4: smear flexible waterproof layer: Xian Tu lower floor polyurethane coating 2, lays non-woven fabrics 3 on lower floor's polyurethane coating 2 after solidification, then smears upper strata polyurethane coating 4 to prevent leakage is scraped along the vertical direction of described lower floor polyurethane coating 2;
Step 5: upper strata polyurethane coating 4 carries out coating mortar 5 after solidifying and constructs, floating press polish is answered on coating mortar 5 surface, tackles the timely maintenance of sand-cement slurry after construction, and curing time is not less than 7d.
Being more than a kind of exemplary embodiment of the present invention, specific embodiment of the invention is not limited to this.
Claims (9)
1. a gas concrete roof boarding strengthening of steel bridge suspension rod place leakage-proof structure, comprise gas concrete roof boarding (7), it is characterized in that: described gas concrete roof boarding (7) offers hole (8), hole (8) center is inserted with a suspension rod (6), described suspension rod (6) one end is stretched in described gas concrete roof boarding (7) through hole (8), the other end is connected with girder steel, form strengthening of steel bridge suspension rod, described hole (8) inside and outer setting have holistic T-shaped application of anti-leakage layers, described application of anti-leakage layers wraps suspension rod (6), described application of anti-leakage layers is followed successively by leak stopping spirit (1) from bottom to up, lower floor's polyurethane coating (2), non-woven fabrics (3), upper strata polyurethane coating (4) and coating mortar (5), wherein, it is inner that described leak stopping spirit (1) and lower floor's polyurethane coating (2) are from bottom to top arranged on described hole (8) respectively, described non-woven fabrics (3) is laid on lower floor's polyurethane coating (2) upper surface and stretches out hole (8) outer edge and set up on gas concrete roof boarding (7) outside surface, described upper strata polyurethane coating (4) is wrapped in non-woven fabrics (3) top and periphery, and described upper strata polyurethane coating (4) outer wrap has coating mortar (5).
2. gas concrete roof boarding strengthening of steel bridge suspension rod place according to claim 1 leakage-proof structure, it is characterised in that: described hole (8) is cube structure, and it is of a size of length �� wide �� height=60mm �� 60mm �� 30mm.
3. gas concrete roof boarding strengthening of steel bridge suspension rod place according to claim 1 leakage-proof structure, it is characterised in that: the total coating thickness of described leak stopping spirit (1) is 20mm.
4. gas concrete roof boarding strengthening of steel bridge suspension rod place according to claim 1 leakage-proof structure, it is characterised in that: the outer edge 30mm of hole (8) is stretched out in the every side of described non-woven fabrics (3).
5. gas concrete roof boarding strengthening of steel bridge suspension rod place according to claim 1 leakage-proof structure, it is characterised in that: the thickness of described coating mortar (5) is apart from the outstanding 2cm of gas concrete roof boarding (7) end face.
6. gas concrete roof boarding strengthening of steel bridge suspension rod place according to claim 1 leakage-proof structure, it is characterised in that: the strength of cement mortar grade of described coating mortar (5) is not less than M5.
7. gas concrete roof boarding strengthening of steel bridge suspension rod place according to claim 1 leakage-proof structure, it is characterised in that: the surperficial floating press polish of described coating mortar (5).
8. gas concrete roof boarding strengthening of steel bridge suspension rod place according to claim 1 leakage-proof structure, it is characterised in that: described upper strata polyurethane coating (4) outside surface is circular arc.
9. the constructional method of gas concrete roof boarding strengthening of steel bridge suspension rod place leakage-proof structure according to the arbitrary item of claim 1-8, it is characterised in that: adopt following steps:
Step one: the hole (8) cutting designed size on the gas concrete roof boarding (7) of suspension rod (6) periphery, with oil-free air compressor, hole (8) interior floating dust is blown, and prevent dust or the grains of sand from entering in hole (8);
Step 2: configuration leak stopping spirit (1) slurry: by leak stopping spirit (1) according to powder: water=1: uniformly slurry without agglomerate is stand-by for the ratio stirring at low speed of 0.3;
Step 3: smear rigid waterproof layer: scrape the first layer leak stopping spirit (1) slurry with scraper plate or trowel, after coating hardens, timely fog curing, vertically scrapes the second layer after 90min, after being all painted with, carry out 48h maintenance;
Step 4: smear flexible waterproof layer: Xian Tu lower floor polyurethane coating (2), on lower floor's polyurethane coating (2), lay non-woven fabrics (3) after solidification, then smear upper strata polyurethane coating (4) to prevent leakage is scraped along the vertical direction of described lower floor polyurethane coating (2);
Step 5: upper strata polyurethane coating (4) carries out coating mortar (5) construction after solidifying; floating press polish is answered on coating mortar (5) surface; tackling the timely maintenance of sand-cement slurry after construction, curing time is not less than 7d.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610131569.0A CN105625744A (en) | 2016-03-09 | 2016-03-09 | Seepage prevention structure for suspension rod for steel girder reinforcement of aerated concrete roof and construction method of seepage prevention structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610131569.0A CN105625744A (en) | 2016-03-09 | 2016-03-09 | Seepage prevention structure for suspension rod for steel girder reinforcement of aerated concrete roof and construction method of seepage prevention structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105625744A true CN105625744A (en) | 2016-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610131569.0A Withdrawn CN105625744A (en) | 2016-03-09 | 2016-03-09 | Seepage prevention structure for suspension rod for steel girder reinforcement of aerated concrete roof and construction method of seepage prevention structure |
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| Country | Link |
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| CN (1) | CN105625744A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109339355A (en) * | 2018-11-21 | 2019-02-15 | 中建二局第二建筑工程有限公司 | The construction method of the aluminium sheet roofing waterproofing node of structural slab is done using ALC plate |
| CN109487756A (en) * | 2018-01-20 | 2019-03-19 | 深圳市深水水务咨询有限公司 | The repairing structure and its construction method at the expansion joint of pressurized water transmission box culvert |
| CN111502324A (en) * | 2020-04-29 | 2020-08-07 | 湖南先锋防水科技有限公司 | Repairing process for leakage between elevator shaft side wall and ground |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1066483A (en) * | 1991-05-09 | 1992-11-25 | 上海市彭浦建筑防水公司 | The preparation method of the complex waterproof layer that roofing is used |
| KR100732473B1 (en) * | 2007-04-06 | 2007-06-27 | (주)수산기업 | Water-proofing method for urathane flim of paint using zinc galvanizing sheets |
| CN101718120A (en) * | 2009-10-29 | 2010-06-02 | 河南省第二建筑工程有限责任公司 | Waterproof structure for washroom pipe-through floor slab |
| CN204311772U (en) * | 2014-12-12 | 2015-05-06 | 北京筑福国际工程技术有限责任公司 | Aero-concrete roof boarding ruggedized construction |
| CN205400117U (en) * | 2016-03-09 | 2016-07-27 | 北京筑福建筑事务有限责任公司 | Jib department leak protection structure is consolidated to aerated concrete roof boarding girder steel |
-
2016
- 2016-03-09 CN CN201610131569.0A patent/CN105625744A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1066483A (en) * | 1991-05-09 | 1992-11-25 | 上海市彭浦建筑防水公司 | The preparation method of the complex waterproof layer that roofing is used |
| KR100732473B1 (en) * | 2007-04-06 | 2007-06-27 | (주)수산기업 | Water-proofing method for urathane flim of paint using zinc galvanizing sheets |
| CN101718120A (en) * | 2009-10-29 | 2010-06-02 | 河南省第二建筑工程有限责任公司 | Waterproof structure for washroom pipe-through floor slab |
| CN204311772U (en) * | 2014-12-12 | 2015-05-06 | 北京筑福国际工程技术有限责任公司 | Aero-concrete roof boarding ruggedized construction |
| CN205400117U (en) * | 2016-03-09 | 2016-07-27 | 北京筑福建筑事务有限责任公司 | Jib department leak protection structure is consolidated to aerated concrete roof boarding girder steel |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109487756A (en) * | 2018-01-20 | 2019-03-19 | 深圳市深水水务咨询有限公司 | The repairing structure and its construction method at the expansion joint of pressurized water transmission box culvert |
| CN109339355A (en) * | 2018-11-21 | 2019-02-15 | 中建二局第二建筑工程有限公司 | The construction method of the aluminium sheet roofing waterproofing node of structural slab is done using ALC plate |
| CN111502324A (en) * | 2020-04-29 | 2020-08-07 | 湖南先锋防水科技有限公司 | Repairing process for leakage between elevator shaft side wall and ground |
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Application publication date: 20160601 |
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