CN101761287A - Reinforced concrete windowsill coping adverse construction method - Google Patents
Reinforced concrete windowsill coping adverse construction method Download PDFInfo
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- CN101761287A CN101761287A CN200910156810A CN200910156810A CN101761287A CN 101761287 A CN101761287 A CN 101761287A CN 200910156810 A CN200910156810 A CN 200910156810A CN 200910156810 A CN200910156810 A CN 200910156810A CN 101761287 A CN101761287 A CN 101761287A
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Abstract
The invention relates to a reinforced concrete windowsill coping adverse construction method comprising the following steps: (1) making pre-cast reinforced concrete building blocks; (2) removing a form; (3) maintaining the pre-cast reinforced concrete building blocks; (4) laying a masonry; (5) burying the pre-cast reinforced concrete building blocks; (6) welding windowsill coping reinforcing steel bars with reinforcing steel bars reserved for the reinforced concrete building blocks; (7) making a template; and (8) processing the joint of the template and the wall. The reinforced concrete windowsill coping adverse construction method can ensure that the reinforced concrete windowsill coping construction is not restricted by the length of the windowsill coping, guarantee the compact construction joint and greatly improve the windowsill coping construction progress and the windowsill coping construction quality. In addition, the reinforced concrete windowsill coping adverse construction method is simple and is convenient to operate. Moreover, the reinforced concrete windowsill coping adverse construction method uses the filed concrete construction residual material to make the pre-cast reinforced concrete building blocks, thereby causing no pollution to the environment and saving the energy and the windowsill coping construction cost.
Description
Technical field
The present invention relates to a kind of Industrial and Civil Engineering method, relate in particular to a kind of reinforced concrete windowsill coping adverse construction method.
Background technology
In building engineering, the steel concrete windowsill bears down on one to play and prevents that 45 ° of cracks from appearring in two jiaos of windowsill bottoms, the windowsill infiltration enters the back body, causes quality problems such as body of wall inundation.Traditional common practices has: one, and when masonry panel, build the steel concrete windowsill when building the windowsill position by laying bricks or stones earlier and bear down on one, to treat to bear down on one steel concrete building finish to continue to lay bricks, the building wall intermittent time is long, influences the construction period; They are two years old, when masonry panel, when building the windowsill position by laying bricks or stones, support with back-up block earlier, directly build the top body of wall thereon by laying bricks or stones, when waiting to build the steel concrete windowsill and bearing down on one, retract back-up block again the concreting windowsill bear down on one, bring certain influence to the windowsill top wall segment quality of encorbelmenting of bearing down on one when retracting back-up block, when the steel concrete windowsill bears down on one concreting, cause that easily to embed the wall part casting and compacting of concrete not in place, cause the windowsill infiltration of bearing down on one, loaded down with trivial details the causing manually and the waste of waste material of constructing; Its three, prefabricated windowsill bears down on one and is subjected to the restriction of windowsill length, finished product should not be protected, problems such as constructing operation heaviness.
Summary of the invention
The objective of the invention is to overcome the defective of prior art, a kind of reinforced concrete windowsill coping adverse construction method that construction speed is saved the construction quality that construction cost and windowsill bear down on one that improves is provided.
For achieving the above object, the present invention adopts a kind of reinforced concrete windowsill coping adverse construction method, may further comprise the steps:
(1) makes reinforced concrete prefabricated building block: the consistency of thickness of the size of blockwork, width and the body of wall that will construct, the length of blockwork and thickness are determined according to the designing requirement windowsill length that embeds body of wall and the windowsill thickness that bears down on one that bears down on one, windowsill bears down on one and embeds body of wall length more than or equal to 250mm, thickness is more than or equal to 60mm, blockwork reserved steel bar topping is 15mm, length in reserve is not less than 10d (d be windowsill bear down on one bar diameter), should be not less than 100mm;
(2) concrete strength of blockwork reaches 1KN/m m
2, i.e. collapsible die;
(3) maintenance of blockwork, curing time be more than or equal to 7 days, can use after reaching 28 days the length of time;
(4) after the blockwork form removal, masonry panel, in the building wall process, upright marked rod, should indicate the windowsill position of bearing down on one on the marked rod, the height of strict control windowsill is pressed unified standard for constructional quality (GB50300-2001) and is carried out control, control content---the control of axis, planeness, verticality and the mortar joint of masonry; In the masonry work progress, with block dormancy brick one skin, masonry planeness deviation must not surpass 5mm bottom windowsill beared down on one;
(5) prefabricated section is buried underground, and the windowsill of formulating according to the marked rod position of bearing down on one is carried out prefabricated section and buried underground, buries the absolute altitude error underground and is not greater than or equal to 5mm, buries the horizontal movement dynamic deviation underground and is not greater than or equal to 5mm;
(6) the windowsill reinforcing bar that bears down on one adopts welding to connect with the reinforcing bar of reinforced concrete prefabricated reservation, and its weld length one side welding is more than or equal to 10d, and double welding is more than or equal to 5d (d be windowsill bear down on one bar diameter); Welding finishes the back according to the designing requirement colligation windowsill distribution bar that bears down on one, and is not greater than or equal to 500mm by spacing simultaneously the lengthening spike is set;
(7) template construct, the faying surface width of template and body of wall is 150mm～200mm, the shape mounting template of should bearing down on one according to the windowsill of the aproll gradient of design, design when template is installed, add tight step by step jig then, tight step by step jig spacing is not greater than or equal to 600mm, and template absolute altitude deviation suitable for reading is more than or equal to ± 5mm;
(8) handle template and body of wall junction: sponge adhesive tape or 1: 2～1: 3 cement mortar pay the seam are adopted in the slit, when adopting the cement mortar pay the seam, get final product concreting after reaching certain intensity; According to designing requirement configuration concrete strength, mix an amount of expansion agent, the concrete aggregate particle diameter is controlled between 5mm～20mm, the sandstone mud content should meet the national regulation requirement, the slump is controlled between 50mm～80mm, earlier windowsill is contacted masonry and template before the concreting and watered moisteningly in advance in 2 hours, after the concreting, water to smash and carry out secondary after finishing and flatten.
The reinforced concrete prefabricated building block of windowsill of the present invention can field fabrication, also can be made by producer.
The present invention further is set in the side of adding suitable for reading that windowsill bears down on one stupefied.
The present invention further be set to again by windowsill bear down on one the construction atlas windowsill aproll gradient is set.
By the present invention, make the construction of bearing down on one of steel concrete windowsill not be subjected to the bear down on one restriction of length of windowsill, method is simple, and easy to operate, construction is connected compact, improves the construction quality that construction speed and windowsill bear down on one greatly.During mounting template, seam crossing adopts the slit between sponge adhesive tape or 1: 2～1: 3 cement mortar filled wall and the template, has guaranteed the windowsill not spillage that bears down on one in the process of building, and has guaranteed impression quality preferably.The steel concrete windowsill bears down on one and adds the horizontal spike of self-control lengthening in the reinforcing bar binding process, has guaranteed reinforcement location, prevents that the concrete windowsill from bearing down on one shrinkage cracking and causing seepage problem.The steel concrete windowsill prefabricated section that bears down on one is made and can be utilized the field fabrication of construction concrete clout, but also suitability for industrialized production.Adopt tight step by step jig that template is fixed, replaced traditional iron wire binding method, can not only save the working time, increase work efficiency, construction cost is saved in energy-conserving and environment-protective.The present invention is applicable to the construction of bearing down on one of the steel concrete windowsill in the building engineering.
Description of drawings
Fig. 1 is an embodiment of the invention blockwork schematic diagram.
Fig. 2 is the embodiment of the invention steel concrete windowsill layout plan that bears down on one.
The specific embodiment
As shown in Figure 1, 2, the present invention is that a kind of steel concrete windowsill bears down on one against doing to send out a job practices, may further comprise the steps:
(1) makes reinforced concrete prefabricated building block 1: the consistency of thickness of the size of blockwork 1, width and the body of wall that will construct, the length of blockwork 1 and thickness bear down on one according to the designing requirement windowsill and 2 embed the length of bodies of wall and windowsill 2 thickness that bear down on one and determine, windowsill bears down on one 2 embedding body of wall length more than or equal to 250mm, thickness is more than or equal to 60mm, blockwork 1 reserved steel bar topping is 15mm, length in reserve 10d (d be windowsill bear down on one bar diameter) should be not less than 100mm;
(2) concrete strength of blockwork 1 reaches 1KN/m m
2, i.e. collapsible die;
(3) maintenance of blockwork 1, curing time be more than or equal to 7 days, can use after reaching 28 days the length of time;
(4) after blockwork 1 form removal, build masonry by laying bricks or stones, in the building wall process, upright marked rod, should indicate windowsill 2 positions of bearing down on one on the marked rod, the height of strict control windowsill is pressed the unified mark of building engineering construction inspection of quality (GB50300-2001) standard and is carried out control, control content---the control of axis, planeness, verticality and the mortar joint of masonry; In the masonry work progress, dormancy brick one skin is built in windowsill 2 bottoms of bearing down on one, and masonry planeness deviation must not surpass 5mm;
(5) prefabricated section is buried underground, and the windowsill of formulating according to the marked rod position of bearing down on one is carried out prefabricated section and buried underground, buries the absolute altitude error underground and is not greater than or equal to 5mm, buries the horizontal movement dynamic deviation underground and is not greater than or equal to 5mm;
(6) the windowsill reinforcing bar that 2 reinforcing bars adopt welding to reserve with reinforced concrete prefabricated building block 1 that bears down on one connects, and its weld length one side welding is more than or equal to 10d, and double welding is more than or equal to 5d; Welding finishes the back according to the designing requirement colligation windowsill distribution bar that bears down on one, and is not greater than or equal to 500mm by spacing simultaneously the lengthening spike is set;
(7) template construct, the faying surface width of template and body of wall is 150mm～200mm, the 2 shape mounting template of should bearing down on one according to the windowsill of the aproll gradient of design, design when template is installed, add tight step by step jig then, tight step by step jig spacing is not greater than or equal to 600mm, and template absolute altitude deviation suitable for reading is more than or equal to ± 3mm;
(8) handle template and body of wall junction: sponge adhesive tape or 1: 2～1: 3 cement mortar pay the seam are adopted in the slit, when adopting the cement mortar pay the seam, get final product concreting after reaching certain intensity; According to designing requirement configuration concrete strength, mix an amount of expansion agent, the concrete aggregate particle diameter is controlled between 5mm～20mm, the sandstone mud content should meet the national regulation requirement, the slump is controlled between 50mm～80mm, earlier windowsill is contacted masonry and template before the concreting and watered moisteningly in advance in 2 hours, after the concreting, water to smash and carry out secondary after finishing and flatten.
Application example of the present invention:
Case history one
Huangyan commercial medium street engineering is 10 layers of little high-rise residential building, and building height is 33.6m, and overall floorage is 50,000 m
2Agent structure adopts frame construction, infilled wall adopts Autoclaved aerated concrete blocks, exterior wall adopts the sintered clay porous brick, the quantity of window is 2632 door frames, windowsill bears down on one and all adopts cast-in-place windowsill 2 top-down construction methods that bear down on one, and since coming into operation in October, 2007, phenomenons such as windowsill cracking, percolating water do not occurred.
Case history two
The FuJing Garden engineering is 6 layer multi-layer residential buildings, and building height is 18.6m, and overall floorage is 6.3 ten thousand m
2, frame construction, infilled wall adopts Autoclaved aerated concrete blocks, and exterior wall adopts the sintered clay porous brick, and the quantity of window is 3156 door frames, and windowsill bears down on one and 2 all adopts the cast-in-place windowsill reversed construction method that bears down on one.Since coming into operation in June, 2008, the windowsill phenomenons such as cracking, percolating water of bearing down on one do not occurred, reach predetermined effect, supervisor, designing unit, the responsible party of each side of unit in charge of construction estimate better.
Case history three
Aokang commercial medium street engineering, 6 layers of brick mix structure, building height is 19.6m, overall floorage is 5.6 ten thousand m
2Frame construction, infilled wall adopts Autoclaved aerated concrete blocks, exterior wall adopts the sintered clay porous brick, the quantity of window is 2630 door frames, windowsill bears down on one and all adopts the cast-in-place windowsill reversed construction method that bears down on one, since coming into operation in 2007, for the windowsill phenomenons such as 2 crackings, percolating water of bearing down on one occurring, reach predetermined effect, obtain the consistent favorable comment of owner with supervisor.
Claims (5)
1. reinforced concrete windowsill coping adverse construction method may further comprise the steps:
(1) makes reinforced concrete prefabricated building block: the consistency of thickness of the size of blockwork, width and the body of wall that will construct, the length of blockwork and thickness are determined according to the designing requirement windowsill length that embeds body of wall and the windowsill thickness that bears down on one that bears down on one, windowsill bears down on one and embeds body of wall length more than or equal to 250mm, thickness is more than or equal to 60mm, blockwork reserved steel bar topping is 15mm, length in reserve is not less than 10d (d be windowsill bear down on one bar diameter), should be not less than 100mm;
(2) concrete strength of blockwork reaches 1KN/mm
2, i.e. collapsible die;
(3) maintenance of blockwork, curing time be more than or equal to 7 days, can use after reaching 28 days the length of time;
(4) after the blockwork form removal, build masonry by laying bricks or stones, in the building wall process, upright marked rod, should indicate the cast-in-place windowsill position of bearing down on one on the marked rod, the height of strict control windowsill is pressed unified standard for constructional quality (GB50300-2001) and is carried out control, control content---the control of axis, planeness, verticality and the mortar joint of masonry; In the masonry work progress, bottom bearing down on one, builds windowsill dormancy brick one skin, and masonry planeness deviation must not surpass 5mm;
(5) prefabricated section is buried underground, and the windowsill of formulating according to the marked rod position of bearing down on one is carried out prefabricated section and buried underground, buries the absolute altitude error underground and is not greater than or equal to 5mm, and it is moving more than or equal to 5mm to bury horizontal movement underground;
(6) the windowsill reinforcing bar that bears down on one adopts welding to connect with the reinforcing bar of reinforced concrete prefabricated reservation, and its weld length one side welding is more than or equal to 10d, and double welding is more than or equal to 5d (d be windowsill bear down on one bar diameter); Welding finishes the back according to the designing requirement colligation windowsill distribution bar that bears down on one, and is not greater than or equal to 500mm by spacing simultaneously the lengthening spike is set;
(7) template construct, the faying surface width of template and body of wall is 150mm～200mm, the shape mounting template of should bearing down on one according to the windowsill of the aproll gradient of design, design when template is installed, add tight step by step jig then, tight step by step jig spacing is not greater than or equal to 600mm, and template absolute altitude deviation suitable for reading is more than or equal to ± 5mm;
(8) handle template and body of wall junction: sponge adhesive tape or 1: 2～1: 3 cement mortar pay the seam are adopted in the slit, when adopting the cement mortar pay the seam, get final product concreting after reaching certain intensity; According to designing requirement configuration concrete strength, mix an amount of expansion agent, the concrete aggregate particle diameter is controlled between 5mm～20mm, the sandstone mud content should meet the national regulation requirement, the slump is controlled between 50mm～80mm, it is moistening earlier windowsill contact and template to be watered in advance in 2 hours before the concreting, after the concreting, waters to smash and carries out secondary after finishing and flatten.
2. reinforced concrete windowsill coping adverse construction method according to claim 1 is characterized in that: the reinforced concrete prefabricated building block of described windowsill can utilize the concrete on construction site clout to make at the construction field (site).
3. reinforced concrete windowsill coping adverse construction method according to claim 1 is characterized in that: the reinforced concrete prefabricated building block of described windowsill can be made by producer.
4. according to claim 1 or 2 or 3 described reinforced concrete windowsill coping adverse construction methods, it is characterized in that: described stupefied in the side of adding suitable for reading that windowsill bears down on one.
5. according to claim 1 or 2 or 3 described reinforced concrete windowsill coping adverse construction methods, it is characterized in that: described by windowsill bear down on one the construction atlas windowsill aproll gradient is set.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910156810A CN101761287A (en) | 2009-12-31 | 2009-12-31 | Reinforced concrete windowsill coping adverse construction method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910156810A CN101761287A (en) | 2009-12-31 | 2009-12-31 | Reinforced concrete windowsill coping adverse construction method |
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| CN101761287A true CN101761287A (en) | 2010-06-30 |
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| CN200910156810A Pending CN101761287A (en) | 2009-12-31 | 2009-12-31 | Reinforced concrete windowsill coping adverse construction method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134009A (en) * | 2015-09-11 | 2015-12-09 | 中建七局第二建筑有限公司 | Sill coping concrete structure of frame structure infilled wall and construction method |
| CN105804583A (en) * | 2016-04-21 | 2016-07-27 | 重庆建工第三建设有限责任公司 | Assembled sill coping structure and using method thereof |
| CN110541520A (en) * | 2019-09-02 | 2019-12-06 | 威海建设集团股份有限公司 | construction method of horizontal component of secondary structure of building engineering wall |
| CN114541922A (en) * | 2022-03-31 | 2022-05-27 | 中冶建工集团有限公司 | Combined windowsill coping construction method based on cement hollow building blocks |
| CN114892843A (en) * | 2022-06-08 | 2022-08-12 | 中建一局集团建设发展有限公司 | Building construction method for building prefabricated blocks of pressing beam at window opening of wall |
-
2009
- 2009-12-31 CN CN200910156810A patent/CN101761287A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134009A (en) * | 2015-09-11 | 2015-12-09 | 中建七局第二建筑有限公司 | Sill coping concrete structure of frame structure infilled wall and construction method |
| CN105134009B (en) * | 2015-09-11 | 2017-04-19 | 中建七局第二建筑有限公司 | Sill coping concrete structure of frame structure infilled wall and construction method |
| CN105804583A (en) * | 2016-04-21 | 2016-07-27 | 重庆建工第三建设有限责任公司 | Assembled sill coping structure and using method thereof |
| CN110541520A (en) * | 2019-09-02 | 2019-12-06 | 威海建设集团股份有限公司 | construction method of horizontal component of secondary structure of building engineering wall |
| CN110541520B (en) * | 2019-09-02 | 2021-06-01 | 威海建设集团股份有限公司 | Construction method of horizontal component of secondary structure of building engineering wall |
| CN114541922A (en) * | 2022-03-31 | 2022-05-27 | 中冶建工集团有限公司 | Combined windowsill coping construction method based on cement hollow building blocks |
| CN114892843A (en) * | 2022-06-08 | 2022-08-12 | 中建一局集团建设发展有限公司 | Building construction method for building prefabricated blocks of pressing beam at window opening of wall |
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Open date: 20100630 |