CN101538869A - Floor mold type composite bottom board structure - Google Patents
Floor mold type composite bottom board structure Download PDFInfo
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- CN101538869A CN101538869A CN200910301070A CN200910301070A CN101538869A CN 101538869 A CN101538869 A CN 101538869A CN 200910301070 A CN200910301070 A CN 200910301070A CN 200910301070 A CN200910301070 A CN 200910301070A CN 101538869 A CN101538869 A CN 101538869A
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- rib
- bottom board
- composite bottom
- board structure
- topotype
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Abstract
The invention discloses a floor mold type composite bottom board structure which comprises a foundation (3), a slot is formed on the foundation (3) and chiseled to form a floor mold (2), steel bars are arranged in and on the slot of the floor mold (2), and concrete is poured to form a concrete rib board structure (1). The floor mold type composite bottom board structure utilizes the foundation to produce the floor mold (2), thereby being capable of adopting the simple construction method and concrete material with the amount lower than the ordinary concrete structure to construct the multi-ribbed board composite structure with the bearing force higher than the ordinary concrete structure by a plurality of times; the self-gravity and the side resistance of the floor mold (2) and the foundation (3) are utilized to offset or mostly offset underground water uplift pressure loads, thereby achieving the purposes of greatly saving using amount of steel, saving the using amount of steel by 50-80 percent, shortening the construction period by 30-50 percent and overcoming the shortcomings in the prior art.
Description
Technical field
The present invention relates to a kind of base arrangement form, the compound raft foundation structure of particularly a kind of ground mode composite bottom board structure or ground mode.
Background technology
Progress and constant development of economy along with society, China's town site is fewer and feweri, basement is used for satisfy stopping and people's air defense requirement, building size are increasing, and the basement bottom board structure will bear generally that underground water uplift pressure load, people's air defense nuclear blast are special to carry or bear as foundation structure very large load such as subgrade reaction.In general, the concrete consumption of ordinary concrete structure is big, amount of reinforcement is many, comprehensive cost is high, the construction period is long.Be that traditional pile foundation, raft foundation are adopted in the requirement of satisfying bearing capacity of foundation soil usually in soft clay area such as Shanghai, Tianjin in addition, its construction costs very eighteenth of the twenty is expensive.
Summary of the invention
Technical problem to be solved by this invention is, a kind of ground mode composite bottom board structure is provided, and the stress performance of this structure is better than the ordinary concrete structure, and job practices is simple, and the duration is short, and cost is low, to overcome deficiency of the prior art.
Technical scheme of the present invention: it comprises ground, and fluting is repaiied scalpriform and become topotype on ground, in the groove of topotype and above place reinforcing bar and water concrete formation concrete dense-rib plated construction.
The basic profile of described topotype is square or cuboid.Can derive complicated profile by basic profile: as recessing on the surface of the corner of basic profile corner cut or part corner cut, basic profile rounding or part rounding, basic profile or the recessing of part corner, basic profile etc.
The surface of described topotype or side are provided with one or more layers topping.
Described topping is cement mortar protective course, coating waterproof layer, insulation layer or the masonry topping that is arranged at the topotype side.
Described concrete dense-rib structure adopts identical or different rib distance.
Described concrete dense-rib structure adopts identical or different rib width and flange width.
Described concrete dense-rib structure adopts the section form of T type or worker's type.
Topotype of the present invention is to utilize the foundation soil fluting of nature to repair cutter (in case of necessity surface go along with sb. to guard him) to form in addition, its cavity that is positioned at the concrete dense-rib plated construction is connected as a whole with ground under it the concrete dense-rib plated construction, make concrete dense-rib plated construction and topotype and under ground to constitute a kind of ground mode composite bottom board structure stressed jointly, the deadweight and the anti-floating collateral resistance of composite bottom board structure have been significantly improved, the deadweight and the collateral resistance that improve can be offset whole or most of underground water uplift pressure, play the effect that is subjected to force compensating, the steel using amount of concrete dense-rib plated construction is significantly reduced even reach bottom line.The employing of topotype, make the construction of the concrete dense-rib plated construction simple and fast and with low cost that becomes, feasible employing is less than the concrete material consumption of ordinary concrete structure, its depth of section improves 2～3 times, increases because anti-bending bearing capacity and depth of section are quadratic relationship, therefore, significantly improved the anti-bending bearing capacity of structure, thereby can easily bear the uplift pressure that subgrade reaction, nuclear blast counter-force and underground water that top-out causes cause, thereby reduce steel using amount significantly, reach the purpose that reduces construction costs.
The concrete dense-rib plated construction adopts and becomes rib distance, change rib width and flange width, variable section structure, promptly adopts different close rib spacing or rib width and flange width or section form at different plates.Plate, bearing strip under the position of stressed maximum such as post can be dwindled close rib spacing one times or close rib widened one times.The concrete dense-rib plated construction adopts and becomes rib distance, change rib width and flange width, variable section structure, also can adopt different close rib spacing or rib width and flange width or section form at same plate.Stressed less as stressed big and another direction of a direction of intercolumniation plate can dwindle stressed close rib spacing than general orientation one times or close rib widened one times.And the bottom of intermediate plate is a pressurized zone, thereby adopts worker's type cross section to increase the compression flange with the reduction steel using amount, and other plate can adopt T type cross section convenient construction.The concrete dense-rib plated construction makes full use of the simple flexibly of topotype construction, make become rib apart from, become rib width and flange width, variable cross-section is simple, thereby make structure stress reach optimum, material usage reach economize most, economic indicator reaches best.
Compared with prior art, the present invention utilizes foundation soil to make topotype, thereby the concrete material consumption that can adopt simple job practices and be lower than the ordinary concrete structure constructs the multi-ribbed plate composite construction that bearing capacity is higher than ordinary concrete structure several times, utilize deadweight and collateral resistance counteracting or most of underground water uplift pressure load of offsetting of topotype and ground, thereby reach the purpose of saving steel using amount significantly, steel using amount 50～80% can be saved, the construction period 30～50% can be shortened.
Description of drawings
Reference numeral: 1, concrete dense-rib plated construction; 2, topotype; 3, ground; 4, post.
Accompanying drawing 1 is a structural representation of the present invention,
Accompanying drawing 2 is that the A-A of accompanying drawing 1 is to view.
The specific embodiment
Embodiments of the invention: at first, close rib shape, spacing and sectional dimension according to objective condition such as soil property, execution conditions and designing requirement design concrete dense-rib plated construction 1 can adopt different close rib spacing or rib width and flange width or section form at different plates.Plate, bearing strip under the position of stressed maximum such as post can be dwindled close rib spacing one times or close rib widened one times.Concrete dense-rib plated construction 1 adopts and becomes rib distance, change rib width and flange width, variable section structure, also can adopt different close rib spacing or rib width and flange width or section form at same plate.Stressed less as stressed big and another direction of a direction of intercolumniation plate can dwindle stressed close rib spacing than general orientation one times or close rib widened one times.And the bottom of intermediate plate is a pressurized zone, thereby adopts worker's type cross section to increase the compression flange with the reduction steel using amount, and other plate can adopt T type cross section convenient construction.
Then, foundation ditch is dug to desired depth, slotting on ground 3 and repair cutter by close rib shape, spacing and the sectional dimension of the concrete dense-rib plated construction 1 that designs is shaped topotype 2, and the basic profile of topotype 2 is square or cuboid.Can derive complicated profile by basic profile: as recessing on the surface of the corner of basic profile corner cut or part corner cut, basic profile rounding or part rounding, basic profile or the recessing of part corner, basic profile etc.According to soil property and execution conditions, adopt mortar to protect or adopt masonry that topotype 2 sides are gone along with sb. to guard him in case of necessity, or do coating waterproof layer and insulation layer on topotype 2 surfaces or side according to designing requirement to topotype 2 surfaces or side.Then, place reinforcing bar above reaching and water concrete formation concrete dense-rib plated construction 1 in the groove of topotype 2, maintenance reaches design strength, promptly finishes construction.
Claims (7)
1. ground mode composite bottom board structure, it comprises ground (3), it is characterized in that: go up fluting at ground (3) and repair scalpriform and become topotype (2), the groove of topotype (2) in and above placement reinforcing bar and water concrete formation concrete dense-rib plated construction (1).
2. ground mode composite bottom board structure according to claim 1 is characterized in that: the basic profile of described topotype (2) is square or cuboid.
3. ground mode composite bottom board structure according to claim 1 and 2 is characterized in that: the surface or the side of described topotype (2) are provided with one or more layers topping.
4. ground mode composite bottom board structure according to claim 3 is characterized in that: described topping is cement mortar protective course, coating waterproof layer, insulation layer or the masonry topping that is arranged at topotype (2) side.
5. ground mode composite bottom board structure according to claim 1 is characterized in that: described concrete dense-rib structure (1) adopts identical or different rib distance.
6. ground mode composite bottom board structure according to claim 1 is characterized in that: described concrete dense-rib structure (1) adopts identical or different rib width and flange width.
7. according to claim 1,4 or 5 described ground mode composite bottom board structures, it is characterized in that: described concrete dense-rib structure (1) adopts the section form of T type or worker's type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910301070A CN101538869A (en) | 2009-03-24 | 2009-03-24 | Floor mold type composite bottom board structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910301070A CN101538869A (en) | 2009-03-24 | 2009-03-24 | Floor mold type composite bottom board structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101538869A true CN101538869A (en) | 2009-09-23 |
Family
ID=41122245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910301070A Pending CN101538869A (en) | 2009-03-24 | 2009-03-24 | Floor mold type composite bottom board structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101538869A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102493483A (en) * | 2011-12-10 | 2012-06-13 | 杨峥雄 | Printing coater foundation |
-
2009
- 2009-03-24 CN CN200910301070A patent/CN101538869A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102493483A (en) * | 2011-12-10 | 2012-06-13 | 杨峥雄 | Printing coater foundation |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090923 |