CN105220893A - A kind of Shockproof reinforcing method existing building structure being carried out to reducing energy consumption - Google Patents
A kind of Shockproof reinforcing method existing building structure being carried out to reducing energy consumption Download PDFInfo
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- CN105220893A CN105220893A CN201510681445.5A CN201510681445A CN105220893A CN 105220893 A CN105220893 A CN 105220893A CN 201510681445 A CN201510681445 A CN 201510681445A CN 105220893 A CN105220893 A CN 105220893A
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Abstract
The invention discloses a kind of Shockproof reinforcing method existing building structure being carried out to reducing energy consumption, comprise the steps: step 1, remove brickwork outside finish; Step 2, batch smear composite mortar; The reinforcing heat preservation construction of step 3, heat-insulated concrete of kervit micro-beads; Step 4, paving polyphenyl plate heat preserving layer; Step 5, laying grid cloth; Step 6, batch smear cement sand bed.The present invention can realize reducing energy consumption to existing building structure, can carry out seismic hardening again, meet resident's demand of living to existing building structure.Method of the present invention have employed the thick glass bead concrete of 60mm at exterior wall, can meet the demand of existing building seismic hardening and reducing energy consumption, to raising existing building anti-seismic performance and heat preservation energy-saving aspect Be very effective.
Description
Technical field
The invention belongs to architecture construction technical field, be specifically related to a kind of Shockproof reinforcing method existing building structure being carried out to reducing energy consumption.
Background technology
In China, the seismic hardening task of existing building becomes day by day urgent.The house that old building, the particularly end of the seventies in last century were built in the past, the standard of providing fortification against earthquakes is low or provide fortification against earthquakes, and comprises school, house, office building, hospital etc., and these buildings all should be classified as the object of seismic hardening as early as possible.Simultaneously because the design life of China's building is generally 50 years, some, more than 50 years but still also in the building of use, also should carry out necessary Seismic and reinforcing.Particularly after " 5.12 " violent earthquake, country carries out comprehensive quake-resistant safety investigation to existing building and proposes to carry out seismic hardening process.Because China is in the area that an earthquake takes place frequently, earthquake is simultaneously very big for the impact of the life security of building and people, except focusing on seismic design in the work progress of new building, also will carry out seismic hardening to existing building simultaneously.
Through the reform and opening-up of 30 years, the building recoverable amount of current China was very considerable.Since 2000, national cities and towns civilian construction recoverable amount has a net increase of more than 900,000,000 squares every year.Current total amount is more than 14,000,000,000 square metres.The building storage increased so fast brings white elephant to the Seismic Resistance And Disaster Reduction of China and energy supply.And in existing civilian construction, have quite a few to be do not meet current requirements for fortification against earthquake.
The architectural energy consumption of current China consumes energy side by side with industrial consumption energy, traffic, one of three large " big power consumers " becoming AND ENERGY RESOURCES CONSUMPTION IN CHINA.Because government and various circles of society are to the attention of building energy conservation, China's building energy conservation and Development of Green Building etc. have been made brilliant achievements.But these achievements are the overwhelming majority be embodied in new building, and contribute less in existing building reducing energy consumption.In some old towns late 1970s ~ early 1990s the multi-storey building (mostly being 5 ~ 7 layers) of a large amount of brick mix structures built, these houses are far from reaching service life, but do not possess entirety and to pull down and remove a building for reconstruction condition, present situation will be kept within the long term.Weigh these buildings by current standard, both do not reach energy conservation standard, the requirement of well-off society resident to dwelling environment can not be met, incompatible with modern city overall development level.
But be domesticly at present still in the starting stage to existing building structure seismic hardening and reducing energy consumption Study on Integration, the existing building structure integration renovation technique meeting current seismic design specifications and power conservation requirement carries out pilot study.The present invention proposes based on such present situation just.
Summary of the invention
The object of the present invention is to provide a kind of Shockproof reinforcing method existing building structure being carried out to reducing energy consumption, reducing energy consumption can be realized to existing building structure, seismic hardening can be carried out to existing building structure again, meet resident's demand of living.
For achieving the above object, the technical solution used in the present invention is as follows:
Existing building structure is carried out to a Shockproof reinforcing method for reducing energy consumption, comprise the steps:
Step 1, removing brickwork outside finish: root out former floated coat, mortar joint will be loosened and reject, and with the residual ash of wire brush outwash, blow off surperficial ashes;
Step 2, batch smear composite mortar: spread water-wet to the wall face rooting out floated coat, spray plain-water slurry together, is then criticized equably and smeared composite mortar;
The reinforcing heat preservation construction of step 3, heat-insulated concrete of kervit micro-beads: criticize until metope and smear after composite mortar completes, batch smears heat-insulated concrete of kervit micro-beads, and thickness is that 60mm is thick;
Step 4, paving polyphenyl plate heat preserving layer: criticize until heat-insulated concrete of kervit micro-beads and smear after construction completes, degree of plainness for wall surface and verticality are not more than 2mm, after dry tack free, by polyphenyl plate, by adhesive, horizontal paving is at exterior wall surface from bottom to top, in the horizontal direction, polyphenyl plate answers the fissure of displacement, and it is long that every block plate should overlap 1/2 plate;
Step 5, laying grid cloth: the paving of polyphenyl plate heat preserving layer, after complete 24 hours, general 3 ~ 7 days, is smeared 3-4mm anticracking grout in polyphenyl plate heat preserving layer surface batch, anticracking grout be pressed into grid cloth from bottom to top, be as the criterion, and be fixed not expose grid;
Step 6, batch smear cement sand bed: after grid cloth has been laid and reached intensity, carry out criticizing of cement sand bed and smear.
Feature of the present invention is also, in step 2, the thickness that whitewashes of composite mortar is 20mm.
Feature of the present invention is also, in step 4, the thickness of polyphenyl plate used is 40mm.
Feature of the present invention is also, in steps of 5, grid cloth used is alkali resistant glass fibre open weave cloth, and thickness is 5mm.
Feature of the present invention is also, in step 6, cement sand bed batch to smear thickness be 20mm, osmotic pressure ratio is not less than 200%.
Feature of the present invention is also, in step 3, heat-insulated concrete of kervit micro-beads used be domestic Sikeda Science & Technology Development Co., Ltd., Taiyuan produce intensity reaches C40, coefficient of thermal conductivity is minimum reaches 0.18W/ (m
2k) heat-insulated concrete of kervit micro-beads.
Beneficial effect of the present invention is as follows:
Relative to prior art, a kind of Shockproof reinforcing method existing building structure being carried out to reducing energy consumption provided by the invention, can realize reducing energy consumption to existing building structure, can carry out seismic hardening again, meet resident's demand of living to existing building structure.Method of the present invention have employed the thick glass bead concrete of 60mm at exterior wall, can meet the demand of existing building seismic hardening and reducing energy consumption, to raising existing building anti-seismic performance and heat preservation energy-saving aspect Be very effective.
Accompanying drawing explanation
Fig. 1 is a kind of flow chart existing building structure being carried out to the Shockproof reinforcing method of reducing energy consumption of the embodiment of the present invention.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the present invention, is not intended to limit the present invention.
Fig. 1 shows a kind of realization flow existing building structure being carried out to the Shockproof reinforcing method of reducing energy consumption of the embodiment of the present invention.As shown in Figure 1, a kind of Shockproof reinforcing method existing building structure being carried out to reducing energy consumption that the embodiment of the present invention provides, comprises the steps:
Step 1, removing brickwork outside finish: root out former floated coat, mortar joint will be loosened and reject, and with the residual ash of wire brush outwash, blow off surperficial ashes;
Step 2, batch smear composite mortar: spread water-wet to the wall face rooting out floated coat, together, then criticize equably and smear composite mortar, the thickness that whitewashes of composite mortar is 20mm to spray plain-water slurry;
The reinforcing heat preservation construction of step 3, heat-insulated concrete of kervit micro-beads: criticize until metope and smear after composite mortar completes, batch smears heat-insulated concrete of kervit micro-beads, and thickness is that 60mm is thick; Heat-insulated concrete of kervit micro-beads used be domestic Sikeda Science & Technology Development Co., Ltd., Taiyuan produce intensity reaches C40, coefficient of thermal conductivity is minimum reaches 0.18W/ (m
2k) heat-insulated concrete of kervit micro-beads;
Step 4, paving polyphenyl plate heat preserving layer: criticize until heat-insulated concrete of kervit micro-beads and smear after construction completes, degree of plainness for wall surface and verticality are not more than 2mm, after dry tack free, by polyphenyl plate, by adhesive, horizontal paving is at exterior wall surface from bottom to top, in the horizontal direction, polyphenyl plate answers the fissure of displacement, it is long that every block plate should overlap 1/2 plate, and the thickness of polyphenyl plate used is 40mm;
Step 5, laying grid cloth: the paving of polyphenyl plate heat preserving layer is after complete 24 hours, general 3 ~ 7 days, 3-4mm anticracking grout is smeared in polyphenyl plate heat preserving layer surface batch, anticracking grout is pressed into grid cloth from bottom to top, be as the criterion not expose grid, and be fixed, grid cloth used is alkali resistant glass fibre open weave cloth, and thickness is 5mm;
Step 6, batch smear cement sand bed: after grid cloth has been laid and reached intensity, carry out batch smearing of cement sand bed, it is 20mm that the criticizing of cement sand bed smears thickness, and osmotic pressure ratio is not less than 200%.。
This invention takes glass bead concrete strengthening and be incubated one-time formed design scheme, glass bead concrete density used is 1950kg/m
3, and conventional concrete unit weight is 2500kg/m
3, adopt glass bead concrete to substitute conventional concrete, material therefor every cubic metre can reduce weight 550kg, and layer quality can reduce 28.2%.Cost is relatively low, can produce good economic benefit.PKPM structural strengthening software and the just energy-conservation software in sky is used to analyze; exterior wall adopts the glass bead concrete that 60mm is thick; the demand of existing building seismic hardening and reducing energy consumption can be met, to raising existing building anti-seismic performance and heat preservation energy-saving aspect Be very effective.After energy-conservation strengthening reconstruction integration, exterior wall relative configurations energy saving calculation is as shown in table 1:
Exterior wall relative configurations energy saving calculation after the energy-conservation strengthening reconstruction integration of table 1
As can be drawn from Table 1, take glass bead concrete strengthening of the present invention and be incubated one-time formed design scheme, external wall thermal transmittance can be low to moderate 0.62, and energy-saving effect is better.
The foregoing is only preferred embodiments of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. existing building structure is carried out to a Shockproof reinforcing method for reducing energy consumption, it is characterized in that, comprise the steps:
Step 1, removing brickwork outside finish: root out former floated coat, mortar joint will be loosened and reject, and with the residual ash of wire brush outwash, blow off surperficial ashes;
Step 2, batch smear composite mortar: spread water-wet to the wall face rooting out floated coat, spray plain-water slurry together, is then criticized equably and smeared composite mortar;
The reinforcing heat preservation construction of step 3, heat-insulated concrete of kervit micro-beads: criticize until metope and smear after composite mortar completes, batch smears heat-insulated concrete of kervit micro-beads, and thickness is that 60mm is thick;
Step 4, paving polyphenyl plate heat preserving layer: criticize until heat-insulated concrete of kervit micro-beads and smear after construction completes, degree of plainness for wall surface and verticality are not more than 2mm, after dry tack free, by polyphenyl plate, by adhesive, horizontal paving is at exterior wall surface from bottom to top, in the horizontal direction, polyphenyl plate answers the fissure of displacement, and it is long that every block plate should overlap 1/2 plate;
Step 5, laying grid cloth: the paving of polyphenyl plate heat preserving layer, after complete 24 hours, general 3 ~ 7 days, is smeared 3-4mm anticracking grout in polyphenyl plate heat preserving layer surface batch, anticracking grout be pressed into grid cloth from bottom to top, be as the criterion, and be fixed not expose grid;
Step 6, batch smear cement sand bed: after grid cloth has been laid and reached intensity, carry out criticizing of cement sand bed and smear.
2. a kind of Shockproof reinforcing method existing building structure being carried out to reducing energy consumption according to claim 1, is characterized in that, in step 2, the thickness that whitewashes of composite mortar is 20mm.
3. a kind of Shockproof reinforcing method existing building structure being carried out to reducing energy consumption according to claim 1, is characterized in that, in step 4, the thickness of polyphenyl plate used is 40mm.
4. a kind of Shockproof reinforcing method existing building structure being carried out to reducing energy consumption according to claim 1, is characterized in that, in steps of 5, grid cloth used is alkali resistant glass fibre open weave cloth, and thickness is 5mm.
5. a kind of Shockproof reinforcing method existing building structure being carried out to reducing energy consumption according to claim 1, is characterized in that, in step 6, cement sand bed batch to smear thickness be 20mm, osmotic pressure ratio is not less than 200%.
6. a kind of Shockproof reinforcing method existing building structure being carried out to reducing energy consumption according to claim 1; it is characterized in that; in step 3, heat-insulated concrete of kervit micro-beads used is that the intensity that domestic Sikeda Science & Technology Development Co., Ltd., Taiyuan produces reaches C40, the minimum heat-insulated concrete of kervit micro-beads reaching 0.18W/ (nvK) of coefficient of thermal conductivity.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111550077A (en) * | 2020-06-05 | 2020-08-18 | 中土大地国际建筑设计有限公司 | Fabricated anti-seismic reinforcing reconstruction structure and reconstruction construction method of existing building |
| CN113216430A (en) * | 2021-04-20 | 2021-08-06 | 中建四局第六建设有限公司 | Double-turning-over net-covering construction method for repairing inorganic thermal insulation mortar external thermal insulation system |
| CN114525943A (en) * | 2022-02-16 | 2022-05-24 | 陕西省建筑科学研究院有限公司 | Single-layer masonry rural house seismic reinforcement construction method under limited conditions |
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| CN101408071A (en) * | 2007-10-10 | 2009-04-15 | 金裕生 | On-site injecting method for energy-saving rebuilding old building exterior wall face into heat-insulating layer |
| JP2012180721A (en) * | 2011-03-03 | 2012-09-20 | Kfc Ltd | Earthquake strengthening structure for existing building and construction method for the same |
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Patent Citations (4)
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| JPH1150480A (en) * | 1997-08-04 | 1999-02-23 | Shimizu Corp | Rebuilding method of building |
| JP2004156395A (en) * | 2002-11-08 | 2004-06-03 | Shimizu Corp | Aseismatic strengthening method for existing building, and aseismatic strengthened structure |
| CN101408071A (en) * | 2007-10-10 | 2009-04-15 | 金裕生 | On-site injecting method for energy-saving rebuilding old building exterior wall face into heat-insulating layer |
| JP2012180721A (en) * | 2011-03-03 | 2012-09-20 | Kfc Ltd | Earthquake strengthening structure for existing building and construction method for the same |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111550077A (en) * | 2020-06-05 | 2020-08-18 | 中土大地国际建筑设计有限公司 | Fabricated anti-seismic reinforcing reconstruction structure and reconstruction construction method of existing building |
| CN113216430A (en) * | 2021-04-20 | 2021-08-06 | 中建四局第六建设有限公司 | Double-turning-over net-covering construction method for repairing inorganic thermal insulation mortar external thermal insulation system |
| CN114525943A (en) * | 2022-02-16 | 2022-05-24 | 陕西省建筑科学研究院有限公司 | Single-layer masonry rural house seismic reinforcement construction method under limited conditions |
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