CN103967045B - A kind of overall bar construction of blower fan spread footing of land four blade profiles - Google Patents
A kind of overall bar construction of blower fan spread footing of land four blade profiles Download PDFInfo
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Abstract
The invention provides a kind of overall bar construction of blower fan spread footing of land four blade profiles, comprise upper reinforcement framework, lower rebar framework, connect the middle part reinforcement frame of upper reinforcement framework and lower rebar framework, upper reinforcement framework and lower rebar framework be arranged in parallel, make full use of the three-dimensional-structure of four blade profiles, play the loading characteristic of four impeller structures, spread footing build is four leaf arrangement forms, whole basis becomes four leaf builds, monolithic concrete structure need be combined into overall force structure with the reinforcing bar matched, reinforcement foundation is arranged by four leaf builds, connect into discharge ring and as a whole bear upper load structure, four blade profile integral reinforced concrete foundation structures, clearly stressed, there is safety high, basic cost reduces, the land wind energy turbine set four leaf spread footing that bearing capacity of foundation soil is greater than 250MPa can be adapted to.
Description
Technical field
The present invention relates to a kind of blower foundation bar construction, particularly a kind of blower fan spread footing steel bar overall structure of land four blade profiles.
Background technology
Land wind energy turbine set installation scale about 6,000 ten thousand kW that current China is built, China's land wind energy resources exploitable deposit about 23.8 hundred million kW, the wind energy turbine set of each installation scale 50,000 kW, the base concrete consumption of C40 intensity is about 11550m3.Meeting under the stable precondition of underlying security, adopting the basic build optimized, a large amount of base concrete engineering quantitys can be saved.So the optimal design of land wind energy turbine set base form, it is the research topic of land wind electric field blower foundation design field always.
Summary of the invention
For the problems referred to above, the present invention, according to the loading characteristic of four impeller structures, provides a kind of safety high, the overall bar construction of blower fan spread footing of land four blade profiles that basic cost reduces.
In order to realize above-mentioned object, the present invention by the following technical solutions, a kind of overall bar construction of blower fan spread footing of land four blade profiles, comprise upper reinforcement framework, lower rebar framework, connect the middle part reinforcement frame of upper reinforcement framework and lower rebar framework, described upper reinforcement framework and lower rebar framework be arranged in parallel; Described upper reinforcement framework is made up of 4 the first trapezoidal single leaves distributed symmetrically around middle part reinforcement frame central point, and described first trapezoidal single leaf joins end to end; By being parallel to each other and the first rectangle reinforcing bar group connection of the reinforcing bar composition evenly arranged between the upper base of described first trapezoidal single leaf symmetrically; The inner side of the trapezoidal left and right waist of described first trapezoidal single leaf is provided with the Eight characters gradual change reinforcing bar group being longitudinally evenly arranged gradual change reinforcing bar composition, and the gradual change reinforcing bar of described Eight characters gradual change reinforcing bar group is that outside gradual change reduces in the Eight characters, the head of described Eight characters gradual change reinforcing bar group and first trapezoidal single leaf upper base connect, the afterbody of described Eight characters gradual change reinforcing bar group is connected by reinforcing bar with the afterbody afterbody of the Eight characters gradual change reinforcing bar group in first trapezoidal single leaf of the other end of the upper reinforcement framework of first trapezoidal single leaf symmetry; The inside of described first trapezoidal single leaf is also provided with single leaf upper base trapezoidal with first and goes to the bottom and parallels the trapezoidal reinforcing bar group of the first gradual change that the reinforcing bar of evenly arranging forms;
Described lower rebar framework is made up of 4 the second trapezoidal single leaves distributed symmetrically around middle part reinforcement frame central point, and described second trapezoidal single leaf joins end to end; The the second rectangle reinforcing bar group consisted of reinforcing bar that is vertical with second trapezoidal single leaf upper base and that evenly arrange between the upper base of described second trapezoidal single leaf symmetrically connects, the inside of described second trapezoidal single leaf is provided with the parallel equally distributed Eight characters reinforcing bar group losing no time to form of single leaf left and right trapezoidal with second waist, the head of described Eight characters reinforcing bar group connects with the upper base of second trapezoidal single leaf, and the Eight characters reinforcing bar group afterbody of the trapezoidal single leaf of the other end second that the afterbody of described Eight characters reinforcing bar group is symmetrical with second trapezoidal single leaf connects; The inside of described second trapezoidal single leaf is also provided with single leaf upper base trapezoidal with second and goes to the bottom and parallels the trapezoidal reinforcing bar group of the second gradual change that the reinforcing bar of evenly arranging forms;
Described middle part reinforcement frame, the the first oval reinforcing bar group, the second oval reinforcing bar group, the first annulus reinforcing bar group, the second annulus reinforcing bar group that forms by vertical upper reinforcement frame and lower rebar framework and around the reinforcing bar that central point rotates evenly arrangement, the described first oval reinforcing bar group, the second oval reinforcing bar group, the first annulus reinforcing bar group, the second annulus reinforcing bar group are also provided with and evenly arrange and vertical sleeve is located at the connection annulus reinforcing bar group of the first oval reinforcing bar group, the second oval reinforcing bar group, the first annulus reinforcing bar group, the second annulus reinforcing bar group; Described first oval reinforcing bar group is positioned at the outside of the second oval reinforcing bar group, described second annulus reinforcing bar group is positioned at the outside of the first oval reinforcing bar group, the first described annulus reinforcing bar group is positioned at the outside of the second annulus reinforcing bar group, perpendicular straight arranged reinforcing bar in described first oval reinforcing bar group is equal with the quantity of the perpendicular straight arranged reinforcing bar in the second oval reinforcing bar group, and the first steel hoop group consisted of reinforcing bar between mutually corresponding reinforcing bar connects; Erecting in described first annulus reinforcing bar group
Straight arranged reinforcing bar is equal with the quantity of straight arranged reinforcing bar perpendicular in the second annulus reinforcing bar group, and the second steel hoop group consisted of reinforcing bar between mutually corresponding reinforcing bar connects.
The square reinforcing bar group be made up of the equally distributed reinforcing bar that is parallel to each other is respectively equipped with in described upper reinforcement framework and lower rebar framework, the described center of square reinforcing bar group and the centres of upper reinforcement framework or lower rebar framework, and the base vertical of the diagonal of described square reinforcing bar group and first trapezoidal single leaf or second trapezoidal single leaf.
Each limit of described square reinforcing bar group is positioned within the intersection point of first trapezoidal single leaf or second trapezoidal single leaf head and the tail connection, is positioned at outside the second annulus reinforcing bar group.
Connected by isometric reinforcing bar group between equally distributed reinforcing bar in Eight characters reinforcing bar group in described lower rebar framework.
By connecting with the oval reinforcing bar group of longitudinal direction connecting annulus reinforcing bar group cross section orthogonal between connection annulus reinforcing bar group in connection annulus reinforcing bar group in described first oval reinforcing bar group and the second oval reinforcing bar group or the first annulus reinforcing bar group and the second annulus reinforcing bar group.
The edge of described first trapezoidal single leaf or second trapezoidal single leaf is provided with single leaf trapezoidal with first or the vertical four limb muscle groups of second trapezoidal single leaf, and four described limb muscle groups are by the cross reinforcement parallel with first trapezoidal single leaf or second trapezoidal single leaf and the net structure that forms with the longitudinal bar that cross reinforcement intersects vertically.
Longitudinal bar in four described limb muscle groups is equal with the number of steel bars in the first gradual change trapezoidal reinforcing bar group or the second gradual change trapezoidal reinforcing bar group, and corresponding connection mutually.
The shape of described first trapezoidal single leaf or second trapezoidal single leaf is isosceles trapezoid.
The present invention adopts above-mentioned technical scheme, it has the following advantages: the three-dimensional-structure making full use of four blade profiles, play the loading characteristic of four impeller structures, reasonable disposition more than 32 kinds is multi-form, special bending, the overall steel bar stress structure of different-diameter spacing, in the force part that basis is the most complicated, excellently establish square platform pillar build, configuration level to, vertically, miter angle is oblique, the steel bar stress of the special bending such as hoop, spread footing build is four leaf arrangement forms, whole basis becomes four leaf builds, monolithic concrete structure need be combined into overall force structure with the reinforcing bar matched, reinforcement foundation is arranged by four leaf builds, connect into discharge ring and as a whole bear upper load structure, four blade profile integral reinforced concrete foundation structures, clearly stressed, comparable circular foundation concrete square amount saves 40%.Steel save 20%, shorten the integral construction duration, reduce overall investment, further optimize the reasonability that land wind electric field blower foundation cost design effectively improves structure design arrangement of reinforcement, it is high that it has safety, basic cost reduces, and can be adapted to the land wind energy turbine set four leaf spread footing that bearing capacity of foundation soil is greater than 250MPa.
Accompanying drawing explanation
Fig. 1 is a kind of overall reinforcing bar structural representation of blower fan spread footing of land four blade profiles;
Fig. 2 is the trapezoidal single leaf part reinforcing bar arrangement schematic diagram of upper reinforcement framework first;
Fig. 3 is square reinforcing bar group and middle part reinforcement frame reinforcing bar arrangement schematic diagram in the trapezoidal single leaf reinforcing bar of upper reinforcement framework first;
Fig. 4 is the trapezoidal single leaf part reinforcing bar arrangement schematic diagram of lower rebar framework second;
Fig. 5 is that the reinforcing bar of lower rebar framework and middle part reinforcement frame is arranged schematic diagram;
Fig. 6 is the sectional structure schematic diagram of half of the present invention
Fig. 7 is upper reinforcement framework overall reinforcing bar arrangement schematic diagram;
Fig. 8 is lower rebar framework overall reinforcing bar arrangement schematic diagram.
1, upper reinforcement framework; 2, lower rebar framework; 3, middle part reinforcement frame; 4, first trapezoidal single leaf; 5, second trapezoidal single leaf; 6, square reinforcing bar group; 7, four limb muscle groups; 301, the first oval reinforcing bar group; 302, the second oval reinforcing bar group; 303, the first annulus reinforcing bar group; 304, the second annulus reinforcing bar group; 305, annulus reinforcing bar group is connected; 306, the first steel hoop group; 307, the second steel hoop group; 401, the first rectangle reinforcing bar group; 402, Eight characters gradual change reinforcing bar group; 403, the trapezoidal reinforcing bar group of the first gradual change; 501, the second rectangle reinforcing bar group; 502, Eight characters reinforcing bar group; 503, the trapezoidal reinforcing bar group of the second gradual change; 504, isometric reinforcing bar group.
Detailed description of the invention
Further the overall bar construction of a kind of blower fan spread footing of land four blade profiles is described according to drawings and embodiments.
The overall bar construction of blower fan spread footing of a kind of land four blade profiles as shown in Fig. 1,2,3,4,5,6,7,8, comprise upper reinforcement framework 1, lower rebar framework 2, connect the middle part reinforcement frame 3 of upper reinforcement framework and lower rebar framework, described upper reinforcement framework 1 and lower rebar framework 1 be arranged in parallel;
Fig. 2,3 clearly can find out that described upper reinforcement framework 1 is made up of 4 the first trapezoidal single leaves 4 distributed symmetrically around middle part reinforcement frame 3 central point, and described first trapezoidal single leaf 4 joins end to end; By to be parallel to each other and the first rectangle reinforcing bar group 401 of the reinforcing bar composition evenly arranged connects between the upper base of described first trapezoidal single leaf 4 symmetrically; The inner side of the trapezoidal left and right waist of described first trapezoidal single leaf 4 is provided with the Eight characters gradual change reinforcing bar group 402 being longitudinally evenly arranged gradual change reinforcing bar composition, and the gradual change reinforcing bar of described Eight characters gradual change reinforcing bar group 402 is that outside gradual change reduces in the Eight characters, the head of described Eight characters gradual change reinforcing bar group 402 connects with the upper base of first trapezoidal single leaf 4, and the afterbody of described Eight characters gradual change reinforcing bar group 402 is connected by reinforcing bar with the afterbody of the Eight characters gradual change reinforcing bar group 402 in first trapezoidal single leaf 4 of the other end of the upper reinforcement framework of first trapezoidal single leaf 4 symmetry; The inside of described first trapezoidal single leaf 4 is also provided with single leaf 4 upper base trapezoidal with first and goes to the bottom and parallels the trapezoidal reinforcing bar group 403 of the first gradual change that the reinforcing bar of evenly arranging forms;
The first rectangle reinforcing bar group 401 between first symmetrical trapezoidal single leaf 4 is evenly arranged by the reinforcing bar of 9 Φ 28mm to form; Eight characters gradual change reinforcing bar group 402 by monolateral be the length gradual change of 8 Φ 28mm reinforcing bar arrange form; The trapezoidal reinforcing bar group 403 of the first gradual change in each first trapezoidal single leaf 4 is parallel to each other by the reinforcing bar of 23 Φ 16mm evenly to arrange;
Fig. 4,5 clearly have expressed described lower rebar framework 2 and is made up of 4 the second trapezoidal single leaves 5 distributed symmetrically around middle part reinforcing bar structure 3 frame central point, and described second trapezoidal single leaf 5 joins end to end; The the second rectangle reinforcing bar group 501 consisted of reinforcing bar that is vertical with second trapezoidal single leaf 5 upper base and that evenly arrange between the upper base of described second trapezoidal single leaf 5 symmetrically connects, the inside of described second trapezoidal single leaf 5 is provided with the parallel equally distributed Eight characters reinforcing bar group 502 losing no time to form of single leaf about 5 waist trapezoidal with second, the head of described Eight characters reinforcing bar group 502 connects with the upper base of second trapezoidal single leaf 5, and Eight characters reinforcing bar group 502 afterbody of the trapezoidal single leaf 5 of the other end second that the afterbody of described Eight characters reinforcing bar group 502 is symmetrical with second trapezoidal single leaf 5 is connected by reinforcing bar; The inside of described second trapezoidal single leaf 5 is also provided with single leaf 5 upper base trapezoidal with second and goes to the bottom and parallels the trapezoidal reinforcing bar group 503 of the second gradual change that the reinforcing bar of evenly arranging forms; The the second rectangle reinforcing bar group 501 connected between second symmetrical trapezoidal single leaf 5 is evenly arranged by the reinforcing bar of 9 Φ 28mm to form;
Eight characters reinforcing bar group 502 be by monolateral be the reinforcing bar of 7 Φ 28mm, and parallelly with the waist of second trapezoidal single leaf 5 to be uniformly distributed;
The trapezoidal reinforcing bar group 503 of the second gradual change in each second trapezoidal single leaf 5 is parallel to each other by the reinforcing bar of 23 Φ 16mm evenly to arrange;
Fig. 3 and Fig. 5 clearly describes described middle part reinforcement frame 3, the the first oval reinforcing bar group 301 formed by vertical upper reinforcement frame 1 and lower rebar framework 2 and around the reinforcing bar that central point rotates evenly arrangement, second oval reinforcing bar group 302, first annulus reinforcing bar group 303, second annulus reinforcing bar group 304, described first oval reinforcing bar group 301, second oval reinforcing bar group 302, first annulus reinforcing bar group 303, second annulus reinforcing bar group 304 is also provided with evenly arrangement and vertical sleeve is located at the first oval reinforcing bar group 301, second oval reinforcing bar group 302, first annulus reinforcing bar group 303, the connection annulus reinforcing bar group 305 of the second annulus reinforcing bar group 303, described first oval reinforcing bar 301 groups is positioned at the outside of the second oval reinforcing bar group 302, described second annulus reinforcing bar group 304 is positioned at the outside of the first oval reinforcing bar group 301, the first described annulus reinforcing bar group 303 is positioned at the outside of the second annulus reinforcing bar group 303, in the perpendicular straight arranged reinforcing bar in described first oval reinforcing bar 301 groups and the second oval reinforcing bar 302 groups
The quantity of perpendicular straight arranged reinforcing bar is equal, and the first steel hoop group 306 consisted of reinforcing bar between mutually corresponding reinforcing bar connects; Perpendicular straight arranged reinforcing bar in described first annulus reinforcing bar group 303 is equal with the quantity of straight arranged reinforcing bar perpendicular in the second annulus reinforcing bar group 304, and the second steel hoop group consisted of reinforcing bar between mutually corresponding reinforcing bar connects 307.
First oval reinforcing bar group 301 and two oval reinforcing bar groups 302 are by the reinforced steel bar ring of 56 Φ 28mm around forming respectively, and the first annulus reinforcing bar group 303 and the second annulus reinforcing bar group 304 are around forming by the reinforced steel bar ring of 61 Φ 28mm; Be set in the first oval reinforcing bar group 301, second oval reinforcing bar group 302, connection annulus reinforcing bar group 305 outside first annulus reinforcing bar group 303 is evenly placed with 7 reinforcing bars from the top down, be set in the second annulus reinforcing bar group 304 and be evenly placed with 9 reinforcing bars from the top down, every root reinforcing bar Φ 16mm, to connect in the first annulus reinforcing bar group 303 and the second annulus reinforcing bar group 304 vertical reinforcing bar from top to down equally distributed second steel hoop group 307 be 7 layers, the diameter of phi 28mm of the reinforcing bar in every layer; To connect in the first oval reinforcing bar group 301 and the second oval reinforcing bar group 302 vertical reinforcing bar from top to down equally distributed first steel hoop group 306 be 7 layers, the diameter of phi 28mm of the reinforcing bar in every layer; Connected through row by welding or butting between above-mentioned reinforcing bar.
In the above-described embodiment, in order to the stability of upper reinforcement framework 1 and lower rebar framework 2 is more increased, the square reinforcing bar group 6 being respectively equipped with the equally distributed reinforcing bar composition that is parallel to each other can be found out in upper reinforcement framework 1 and lower rebar framework 2 in fig. 3 and in fig. 5, the described center of square reinforcing bar group 6 and the centres of upper reinforcement framework 1 or lower rebar framework 2, and the base vertical of the diagonal of described square reinforcing bar group 6 and the trapezoidal single leaf 5 of first trapezoidal single leaf 4 or the second.Each limit of square reinforcing bar group 6 is positioned within the intersection point of first trapezoidal single leaf 4 or the second trapezoidal single leaf 5 head and the tail connection, is positioned at outside the second annulus reinforcing bar group 304.Square reinforcing bar group 6 by monolateral be that the parallel reinforced steel bar of 7 diameter of phi 28mm forms.
In the above-described embodiment, in order to the switching performance between the Eight characters reinforcing bar group 502 in second trapezoidal single leaf 5 is better, and between can form an entirety, connected by isometric reinforcing bar group 504 between equally distributed reinforcing bar in the Eight characters reinforcing bar group 502 as shown in Figure 5 in lower rebar framework 3; Isometric reinforcing bar group 504 is evenly arranged in splayed reinforcing bar group 502 by 23 diameter of phi 16mm and forms.
In the above-described embodiment, in order to connect the more firm of annulus reinforcing bar group 305 connection in middle part steel rib component 3, safety, stability is high, the as shown in Figure 6 first oval reinforcing bar group 301 and the second oval reinforcing bar group 302 or between the first annulus reinforcing bar group 303 and the connection annulus reinforcing bar group 305 of the second annulus reinforcing bar group 304 by connecting with the oval reinforcing bar group 308 of longitudinal direction connecting annulus reinforcing bar group 305 cross section orthogonal.Longitudinally oval reinforcing bar group 308 is uniformly distributed by rotating around annulus reinforcing bar group 305 and forms with the 56 Φ 28mm reinforcing bars connecting annulus reinforcing bar group 305 cross section orthogonal.
In the above-described embodiment, the edge of the trapezoidal single leaf 5 of as described in Fig. 2 with Fig. 6 first trapezoidal single leaf 4 or the second is provided with four vertical limb muscle groups 7 of the trapezoidal single leaf 5 of single leaf 4 or the second trapezoidal with first, four described limb muscle groups 7 are by the cross reinforcement parallel with the trapezoidal single leaf 5 of first trapezoidal single leaf 4 or the second and the net structure that forms with the longitudinal bar that cross reinforcement intersects vertically, and this net structure is vertical with the trapezoidal single leaf 5 of first trapezoidal single leaf 4 or the second, longitudinal bar in 7 groups described, four limb muscle is equal with the number of steel bars in the first gradual change trapezoidal reinforcing bar group 403 or the second gradual change trapezoidal reinforcing bar group 503, and corresponding connection mutually.
In the above-described embodiment, more balance in order to overall structure is stressed, manufacture more simple, the shape of the trapezoidal single leaf 5 of first trapezoidal single leaf 4 or the second is isosceles trapezoids as shown in Figure 7,8.
In sum, the invention provides a kind of overall bar construction of blower fan spread footing of land four blade profiles, make full use of the three-dimensional-structure of four blade profiles, play the loading characteristic of four impeller structures, reasonable disposition more than 32 kinds is multi-form, special bending, the overall steel bar stress structure of different-diameter spacing, in the force part that basis is the most complicated, excellently establish square platform pillar build, configuration level to, vertically, miter angle is oblique, the steel bar stress of the special bending such as hoop, spread footing build is four leaf arrangement forms, whole basis becomes four leaf builds, monolithic concrete structure need be combined into overall force structure with the reinforcing bar matched, reinforcement foundation is arranged by four leaf builds, connect into discharge ring and as a whole bear upper load structure, four blade profile integral reinforced concrete foundation structures, clearly stressed, comparable circular foundation concrete square amount saves 40%.Steel save 20%, shorten the integral construction duration, reduce overall investment, further optimize the reasonability that land wind electric field blower foundation cost design effectively improves structure design arrangement of reinforcement, it is high that it has safety, basic cost reduces, and can be adapted to the land wind energy turbine set four leaf spread footing that bearing capacity of foundation soil is greater than 250MPa.
More than exemplifying is only illustrate of the present invention, does not form the restriction to protection scope of the present invention, everyly all belongs within protection scope of the present invention with the same or analogous design of the present invention.
Claims (8)
1. the overall bar construction of the blower fan spread footing of land four blade profiles, it is characterized in that, comprise upper reinforcement framework, lower rebar framework, connect the middle part reinforcement frame of upper reinforcement framework and lower rebar framework, described upper reinforcement framework and lower rebar framework be arranged in parallel;
Described upper reinforcement framework is made up of 4 the first trapezoidal single leaves distributed symmetrically around middle part reinforcement frame central point, and described first trapezoidal single leaf joins end to end; By being parallel to each other and the first rectangle reinforcing bar group connection of the reinforcing bar composition evenly arranged between the upper base of first symmetrical trapezoidal single leaf; The inner side of the trapezoidal left and right waist of described first trapezoidal single leaf is provided with the Eight characters gradual change reinforcing bar group being longitudinally evenly arranged gradual change reinforcing bar composition, and the gradual change reinforcing bar of described Eight characters gradual change reinforcing bar group is that outside gradual change reduces in the Eight characters, the head of described Eight characters gradual change reinforcing bar group connects with the upper base of first trapezoidal single leaf, and the afterbody of described Eight characters gradual change reinforcing bar group is connected by reinforcing bar with the afterbody of the Eight characters gradual change reinforcing bar group in first trapezoidal single leaf of the other end of the upper reinforcement framework of first trapezoidal single leaf symmetry; The inside of described first trapezoidal single leaf is also provided with single leaf upper base trapezoidal with first and goes to the bottom and parallels the trapezoidal reinforcing bar group of the first gradual change that the reinforcing bar of evenly arranging forms;
Described lower rebar framework is made up of 4 the second trapezoidal single leaves distributed symmetrically around middle part reinforcement frame central point, and described second trapezoidal single leaf joins end to end; The the second rectangle reinforcing bar group consisted of reinforcing bar that is vertical with second trapezoidal single leaf upper base and that evenly arrange between the upper base of second symmetrical trapezoidal single leaf connects, the inside of described second trapezoidal single leaf is provided with the Eight characters reinforcing bar group that the parallel equally distributed reinforcing bar of single leaf left and right waist trapezoidal with second forms, the head of described Eight characters reinforcing bar group connects with the upper base of second trapezoidal single leaf, and the Eight characters reinforcing bar group afterbody of the trapezoidal single leaf of the other end second that the afterbody of described Eight characters reinforcing bar group is symmetrical with second trapezoidal single leaf is connected by reinforcing bar; The inside of described second trapezoidal single leaf is also provided with single leaf upper base trapezoidal with second and goes to the bottom and parallels the trapezoidal reinforcing bar group of the second gradual change that the reinforcing bar of evenly arranging forms;
Described middle part reinforcement frame, the the first oval reinforcing bar group, the second oval reinforcing bar group, the first annulus reinforcing bar group, the second annulus reinforcing bar group that forms by vertical upper reinforcement frame and lower rebar framework and around the reinforcing bar that central point rotates evenly arrangement, the described first oval reinforcing bar group, the second oval reinforcing bar group, the first annulus reinforcing bar group, the second annulus reinforcing bar group are also provided with and evenly arrange and vertical sleeve is located at the connection annulus reinforcing bar group of the first oval reinforcing bar group, the second oval reinforcing bar group, the first annulus reinforcing bar group, the second annulus reinforcing bar group; Described first oval reinforcing bar group is positioned at the outside of the second oval reinforcing bar group, described second annulus reinforcing bar group is positioned at the outside of the first oval reinforcing bar group, the first described annulus reinforcing bar group is positioned at the outside of the second annulus reinforcing bar group, perpendicular straight arranged reinforcing bar in described first oval reinforcing bar group is equal with the quantity of the perpendicular straight arranged reinforcing bar in the second oval reinforcing bar group, and the first steel hoop group consisted of reinforcing bar between mutually corresponding reinforcing bar connects; Perpendicular straight arranged reinforcing bar in described first annulus reinforcing bar group is equal with the quantity of straight arranged reinforcing bar perpendicular in the second annulus reinforcing bar group, and the second steel hoop group consisted of reinforcing bar between mutually corresponding reinforcing bar connects.
2. according to the overall bar construction of the blower fan spread footing of a kind of land four blade profiles described in claim 1, it is characterized in that, the square reinforcing bar group of the equally distributed reinforcing bar composition that is parallel to each other is respectively equipped with in described upper reinforcement framework and lower rebar framework, the described center of square reinforcing bar group and the centres of upper reinforcement framework or lower rebar framework, and the base vertical of the diagonal of described square reinforcing bar group and first trapezoidal single leaf or second trapezoidal single leaf.
3. according to the overall bar construction of the blower fan spread footing of a kind of land four blade profiles described in claim 2, it is characterized in that, each limit of described square reinforcing bar group is positioned within the intersection point of first trapezoidal single leaf or second trapezoidal single leaf head and the tail connection, is positioned at outside the second annulus reinforcing bar group.
4., according to the overall bar construction of the blower fan spread footing of a kind of land four blade profiles described in claim 1, it is characterized in that, connected by isometric reinforcing bar group between equally distributed reinforcing bar in the Eight characters reinforcing bar group in described lower rebar framework.
5. according to the overall bar construction of the blower fan spread footing of a kind of land four blade profiles described in claim 1, it is characterized in that, by connecting with the oval reinforcing bar group of longitudinal direction connecting annulus reinforcing bar group cross section orthogonal between the connection annulus reinforcing bar group in the connection annulus reinforcing bar group in the described first oval reinforcing bar group and the second oval reinforcing bar group or the first annulus reinforcing bar group and the second annulus reinforcing bar group.
6. according to the overall bar construction of the blower fan spread footing of a kind of land four blade profiles described in claim 1, it is characterized in that, the edge of described first trapezoidal single leaf or second trapezoidal single leaf is provided with single leaf trapezoidal with first or the vertical four limb muscle groups of second trapezoidal single leaf, and four described limb muscle groups are by the cross reinforcement parallel with first trapezoidal single leaf or second trapezoidal single leaf and the net structure that forms with the longitudinal bar that cross reinforcement intersects vertically.
7. according to the overall bar construction of the blower fan spread footing of a kind of land four blade profiles described in claim 6, it is characterized in that, longitudinal bar in four described limb muscle groups is equal with the number of steel bars in the first gradual change trapezoidal reinforcing bar group or the second gradual change trapezoidal reinforcing bar group, and corresponding connection mutually.
8., according to the overall bar construction of the blower fan spread footing of land four blade profiles of any one described in claim 1 to 6, it is characterized in that, the shape of described first trapezoidal single leaf or second trapezoidal single leaf is isosceles trapezoid.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103046575A (en) * | 2013-01-28 | 2013-04-17 | 中国水电顾问集团西北勘测设计研究院 | Land four-leaf-clover-type fan expanded foundation structure |
| CN203307835U (en) * | 2013-05-15 | 2013-11-27 | 北京中水恒信环境科技发展有限公司 | Pre-stress reverse ribbed plate |
| CN203361184U (en) * | 2013-07-31 | 2013-12-25 | 山东电力工程咨询院有限公司 | Tower foundation form of overhead transmission line |
| CN203846526U (en) * | 2014-05-12 | 2014-09-24 | 中国电建集团西北勘测设计研究院有限公司 | Integrated rebar structure of onshore four-blade type spread foundation of fan |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110061321A1 (en) * | 2006-09-21 | 2011-03-17 | Ahmed Phuly | Fatigue reistant foundation system |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103046575A (en) * | 2013-01-28 | 2013-04-17 | 中国水电顾问集团西北勘测设计研究院 | Land four-leaf-clover-type fan expanded foundation structure |
| CN203307835U (en) * | 2013-05-15 | 2013-11-27 | 北京中水恒信环境科技发展有限公司 | Pre-stress reverse ribbed plate |
| CN203361184U (en) * | 2013-07-31 | 2013-12-25 | 山东电力工程咨询院有限公司 | Tower foundation form of overhead transmission line |
| CN203846526U (en) * | 2014-05-12 | 2014-09-24 | 中国电建集团西北勘测设计研究院有限公司 | Integrated rebar structure of onshore four-blade type spread foundation of fan |
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