CN105484434A - Leveling course structure of large-span conical roof and construction method of leveling course structure - Google Patents
Leveling course structure of large-span conical roof and construction method of leveling course structure Download PDFInfo
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- CN105484434A CN105484434A CN201510942156.6A CN201510942156A CN105484434A CN 105484434 A CN105484434 A CN 105484434A CN 201510942156 A CN201510942156 A CN 201510942156A CN 105484434 A CN105484434 A CN 105484434A
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- bar dowel
- roof panel
- bar
- cone
- layer structure
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D7/00—Roof covering exclusively consisting of sealing masses applied in situ; Gravelling of flat roofs
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- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a leveling course structure of a large-span conical roof and a construction method of the leveling course structure. A slope retarding region is formed in the middle of the structure, and the gradient of the slope retarding region is smaller than gradients of the two edges of the slope retarding region in the axial direction. Short reinforcing steel bars are embedded at intervals uniformly in a cement mortar course in the length and radian directions of a roof plate, wherein one cambered location control reinforcing steel bar is connected with the ends of the short reinforcing steel bars in the same row arranged in the radian direction of the roof plate, and a cement cake is arranged on the lateral face of each short reinforcing steel bar. According to the leveling course structure, triple control screens are designed so as to achieve elevation control over the special-shaped curved surface, primary drawing dense wires drawn between the cone top and the cone bottom serve as the first course; secondary drawing dense wires drawn between the first batch of the short reinforcing steel bars serve as the second course; the cambered location control reinforcing steel bars arranged between the short reinforcing steel bars in the same row serve as the third course. The triple guards act at the same time to achieve control over the elevation of the special-shaped curved surface and the leveling thickness, so that the overall structure is complete and uniform, the whole construction is simple and effective, and construction quality and construction efficiency are improved.
Description
Technical field
The present invention relates to a kind of roofing leveling layer structure and construction method thereof.
Background technology
Along with the development of building operations industry, various building types is arisen at the historic moment, in order to meet daylighting or other building demands, some special-shaped roof structures show especially out, taper roofing is exactly wherein a kind of special-shaped roofing, levelling operation together need be carried out before heat insulating sprayed in taper roofing concrete structure exterior decoration way, insulation material is spraying hard-foam polyurethane, higher to roofing flatness requirement before spraying, because taper roofing belongs to abnormal curved surface, the result of its leveling layer and emphasis in engineering and difficult point are just become to the absolute altitude of abnormal curved surface and the control of levelling thickness.
Summary of the invention
The object of this invention is to provide a kind of large span taper roofing leveling layer structure and construction method thereof, absolute altitude and the unmanageable technical problem of levelling thickness of abnormal curved surface be solved.
For achieving the above object, the present invention adopts following technical scheme:
A kind of large span taper roofing leveling layer structure, comprise the cement sand bed on the surface of the roof panel being cast in taper, the middle part of this structure is grade elimination district, its gradient is less than the gradient on both sides, axially grade elimination district, the inside of described cement sand bed is implanted along the length of roof panel and radian direction uniform intervals bar dowel, the end with row's bar dowel wherein arranged on roof panel radian direction is connected with arc control position reinforcing bar, and the side of every root bar dowel is provided with ash cake.
Described cement sand bed length is axially 30 ~ 40m, and wherein grade elimination district length is axially 1 ~ 3m.
Adjacent bar dowel in the longitudinal direction spacing distance is 1 ~ 3m, and the spacing distance of adjacent bar dowel on radian direction of cone bottom is 0.3 ~ 0.7m.
Described bar dowel exceeds the little 3 ~ 10mm of design thickness of the aspect ratio cement sand bed of roof panel.
Described arc control position reinforcing bar is bent by the long reinforcing bar identical with bar dowel diameter, and described arc control position reinforcement welding is in the end sides, concordant with the top of bar dowel of bar dowel.
Described ash cake is closely arranged on the opposite side of bar dowel relative to arc control position reinforcing bar, and the top of ash cake is concordant with the top of bar dowel.
As described in the construction method of large span taper roofing leveling layer structure, concrete steps are as follows:
Step one, on the surface of the roof panel of having constructed, first time draws and establishes close line and mark picture point along filament direction.
Step 2, holes at the vertex of a cone of roof panel, the cone end and the picture point place of grade elimination district upgrade change location and implants first bar dowel.
Step 3, in first time, the top of bar dowel is carried out second time and is drawn and establish close line.
Step 4, draws according to second time and establishes the height of close linear distance roof panel all the other picture point places on roof panel to implant a second batch bar dowel.
Step 5, first bar dowel is connected arc control position reinforcing bar with on the bar dowel of row with in second batch bar dowel on the radian direction on roof panel.
Step 6, the picture point position on roof panel arranges ash cake.
Step 7, by clean for roof panel removing surface.
Step 8, on roof panel, joints cement mortar forms cement sand bed.
Step 9, utilizes darby to scrape required radian piecemeal along arc control position reinforcing bar.
Step 10, after flat with wood float stranding, uses plasterer's trowel compacting.
Step 11, after heavy mistake of swimming, then carries out second time compacting with plasterer's trowel.
Step 12, carries out maintenance to the cement sand bed after compacting, so far, completes construction of leveling blanket.
In described step one, one place's mark is set at the vertex of a cone place of roof panel, on radian direction, one place's mark is set in cone bottom every 0.5m simultaneously, drawn by the mark of the vertex of a cone establish multiple tracks fine rule as close line traffic control net to the mark of cone bottom, interval, the direction 2m along per pass fine rule draws some mark.
In described step 2, the described vertex of a cone, the cone end and the picture point place of grade elimination district upgrade change location refer to the initial change location of the gradient and slope ends change location, and the starting point namely changed in the gradient and terminal all will implant first bar dowel.
In described step 2, bore diameter is 12mm, and bar dowel diameter is 10mm, and the height that bar dowel exceeds roof panel 1 is 20mm, 5mm less of cement sand bed design thickness.
Compared with prior art the present invention has following characteristics and beneficial effect:
Because the two-end thickness of taper roof panel is different, so there is a grade elimination district to carry out transition at middle part, leveling layer of the present invention is in order to adapt to this special construction, also a flat grade region, place is devised in the middle part of it, in order to the absolute altitude realizing abnormal curved surface controls, devise triple Controling network, first floor is draw the first time of establishing to draw at the vertex of a cone and the cone end to establish close line, in order to implant first bar dowel; The second layer is draw the second time of establishing to draw between first bar dowel to establish close line, in order to implant second batch bar dowel; Third layer is the arc control position reinforcing bar with arranging between row's bar dowel, and form arc control position net, triple guarantee acts on simultaneously, realize the absolute altitude of abnormal curved surface and the control of levelling thickness, the complete unification of overall structure, whole construction is simply effective, improves construction quality and efficiency of construction.
The present invention can be widely used in the leveling layer structure construction of abnormal curved surface.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention will be further described in detail.
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation after implanting first bar dowel in step 2.
Fig. 3 is the structural representation after implanting second batch bar dowel in step 4.
Fig. 4 is the structural representation after connecting arc control position reinforcing bar in step 5.
Fig. 5 is the structure schematic front view of A node in Fig. 4.
Fig. 6 is the structure schematic side view of A node in Fig. 4.
Reference numeral: 1-roof panel, 2-cement sand bed, first bar dowel of 3-, 4-second batch bar dowel, 5-arc control position reinforcing bar, 6-ash cake.
Detailed description of the invention
Embodiment is shown in Figure 1, this large span taper roofing leveling layer structure, comprise the cement sand bed 2 on the surface of the roof panel 1 built in taper, the maximum span 34.6m of described roof panel 1, afterbody sagitta 4.838m, taper is gone up along its length exists the long gradient Jian Huan district of 2m in middle part, in order to adapt to this special construction, the middle part of this structure is designed to grade elimination district, its gradient is 0.044 gradient 0.1 being less than both sides, axially grade elimination district, the inside of described cement sand bed 2 is implanted along the length of roof panel 1 and radian direction uniform intervals bar dowel, the end with row's bar dowel wherein arranged on roof panel 1 radian direction is connected with arc control position reinforcing bar 5, the side of every root bar dowel is provided with ash cake 6.
Shown in Fig. 2, Fig. 3, described cement sand bed 2 length is axially 34.6m, and wherein grade elimination district length is axially 2m; On adjacent bar dowel length direction in the axial direction, spacing distance is 2m, and the spacing distance of adjacent bar dowel again on radian direction of cone bottom is 0.5m; State the little 5mm of design thickness that bar dowel exceeds the aspect ratio cement sand bed of roof panel.
Shown in Figure 4, described arc control position reinforcing bar 5 is bent by the long reinforcing bar identical with bar dowel diameter, and described arc control position reinforcing bar 5 is welded on the end sides, concordant with the top of bar dowel of bar dowel.
Shown in Figure 6, described ash cake 6 is closely arranged on the opposite side of bar dowel relative to arc control position reinforcing bar 5, and the top of ash cake 6 is concordant with the top of bar dowel.
As described in the construction method of large span taper roofing leveling layer structure, concrete steps are as follows:
Step one, on the surface of the roof panel 1 of having constructed, first time draws and establishes close line and mark picture point along filament direction: arrange place's mark at the vertex of a cone place of roof panel, on radian direction, arrange place's mark in cone bottom every 0.5m simultaneously, drawn by the mark of the vertex of a cone establish multiple tracks fine rule as close line traffic control net to the mark of cone bottom, interval, the direction 2m along per pass fine rule draws some mark.
Step 2, hole at the vertex of a cone of roof panel 1, the cone end and the picture point place of grade elimination district upgrade change location and implant first bar dowel 3: be shown in Figure 2, the described vertex of a cone, the cone end and the picture point place of grade elimination district upgrade change location refer to the initial change location of the gradient and slope ends change location, namely the starting point changed in the gradient and terminal all will implant first bar dowel, in addition, bore diameter is 12mm, bar dowel diameter is 10mm, and the height that bar dowel exceeds roof panel 1 is 20mm, 5mm less of cement sand bed design thickness.
Step 3, in first time, the top of bar dowel 3 is carried out second time and is drawn and establish close line.
Step 4, draw according to second time and establish the height of close linear distance roof panel 1 all the other are drawn some place and implant second batch bar dowels 4 on roof panel 1: according to second time draw establish the height of close line-spacing roof panel as all the other draw some place's bar planting reinforcing steel bars exposed length according to being phenomenon in order to prevent uneven the caused circular arc irregularity of middle part roof panel radian.
Step 5, first bar dowel 3 is connected arc control position reinforcing bar 5 with on the bar dowel of row with in second batch bar dowel 4 on the radian direction on roof panel 1, forms arc Controling network.
Step 6, the picture point position on roof panel 1 arranges ash cake 6: wherein, the cement of ash cake and the mass ratio of sand are 1:2.5.
Step 7, by clean for roof panel 1 removing surface.
Step 8, joints cement mortar on roof panel 1: wherein, the cement of cement mortar and the mass ratio of sand are 1:3.
Step 9, darby is utilized to scrape required radian piecemeal along arc control position reinforcing bar 5: because the spacing of arc control position reinforcing bar 5 is 2m, therefore adopt the long darby of 2.5m progressively to scrape required radian by the peak of roof panel to both sides, construct piecemeal subsequently, until complete the construction of whole taper roof panel.
Step 10, after flat with wood float stranding, uses plasterer's trowel compacting.
Step 11, after heavy mistake of swimming, then carries out second time compacting with plasterer's trowel: heavy mistake of wherein swimming has set foot on footprint with people but do not sunk to be as the criterion.
Step 12, carries out maintenance to the cement sand bed after compacting, so far, completes construction of leveling blanket: leveling layer cement mortar screeding and compaction carries out the maintenance of watering peritonaeum after 24 hours, curing time is not less than 7 days.
Claims (10)
1. a large span taper roofing leveling layer structure, comprise the cement sand bed (2) on the surface of the roof panel (1) being cast in taper, it is characterized in that: the middle part of this structure is grade elimination district, its gradient is less than the gradient on both sides, axially grade elimination district, the inside of described cement sand bed (2) is implanted along the length of roof panel (1) and radian direction uniform intervals bar dowel, the end with row's bar dowel wherein arranged on roof panel (1) radian direction is connected with arc control position reinforcing bar (5), the side of every root bar dowel is provided with ash cake (6).
2. large span taper roofing leveling layer structure according to claim 1, is characterized in that: described cement sand bed (2) length is axially 30 ~ 40m, and wherein grade elimination district length is axially 1 ~ 3m.
3. large span taper roofing leveling layer structure according to claim 1, is characterized in that: adjacent bar dowel in the longitudinal direction spacing distance is 1 ~ 3m, and the spacing distance of adjacent bar dowel on radian direction of cone bottom is 0.3 ~ 0.7m.
4. large span taper roofing leveling layer structure according to claim 1, is characterized in that: described bar dowel exceeds the little 3 ~ 10mm of design thickness of the aspect ratio cement sand bed of roof panel.
5. large span taper roofing leveling layer structure according to claim 1, it is characterized in that: described arc control position reinforcing bar (5) is bent by the long reinforcing bar identical with bar dowel diameter, described arc control position reinforcing bar (5) is welded on the end sides, concordant with the top of bar dowel of bar dowel.
6. large span taper roofing leveling layer structure according to claim 5, it is characterized in that: described ash cake (6) is closely arranged on the opposite side of bar dowel relative to arc control position reinforcing bar (5), the top of ash cake (6) is concordant with the top of bar dowel.
7. a construction method for the large span taper roofing leveling layer structure as described in claim 1 to 6, it is characterized in that, concrete steps are as follows:
Step one, on the surface of the roof panel of having constructed (1), first time draws and establishes close line and mark picture point along filament direction;
Step 2, the vertex of a cone in roof panel (1), the cone end and the picture point place of grade elimination district upgrade change location hole and implant first bar dowel (3);
Step 3, carries out second time and draws and establish close line at the top of first time bar dowel (3);
Step 4, draws according to second time and establishes the height of close linear distance roof panel (1) to implant second batch bar dowel (4) at roof panel (1) all the other picture point places upper;
Step 5, first bar dowel (3) is connected arc control position reinforcing bar (5) with on the bar dowel of row with in second batch bar dowel (4) on the radian direction on roof panel (1);
Step 6, the picture point position on roof panel (1) arranges ash cake (6);
Step 7, by clean for roof panel (1) removing surface;
Step 8, forms cement sand bed (2) at the upper joints cement mortar of roof panel (1);
Step 9, utilizes darby to scrape required radian piecemeal along arc control position reinforcing bar (5);
Step 10, after flat with wood float stranding, uses plasterer's trowel compacting;
Step 11, after heavy mistake of swimming, then carries out second time compacting with plasterer's trowel;
Step 12, carries out maintenance to the cement sand bed after compacting, so far, completes construction of leveling blanket.
8. the construction method of large span taper roofing leveling layer structure according to claim 7, it is characterized in that: in described step one, one place's mark is set at the vertex of a cone place of roof panel, on radian direction, one place's mark is set in cone bottom every 0.5m simultaneously, drawn by the mark of the vertex of a cone establish multiple tracks fine rule as close line traffic control net to the mark of cone bottom, interval, the direction 2m along per pass fine rule draws some mark.
9. the construction method of large span taper roofing leveling layer structure according to claim 7, it is characterized in that: in described step 2, the described vertex of a cone, the cone end and the picture point place of grade elimination district upgrade change location refer to the initial change location of the gradient and slope ends change location, and the starting point namely changed in the gradient and terminal all will implant first bar dowel.
10. the construction method of large span taper roofing leveling layer structure according to claim 7, it is characterized in that: in described step 2, bore diameter is 12mm, and bar dowel diameter is 10mm, and the height that bar dowel exceeds roof panel (1) is 20mm, 5mm less of cement sand bed design thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510942156.6A CN105484434B (en) | 2015-12-16 | 2015-12-16 | The levelling Rotating fields of large span taper roofing and its construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510942156.6A CN105484434B (en) | 2015-12-16 | 2015-12-16 | The levelling Rotating fields of large span taper roofing and its construction method |
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| Publication Number | Publication Date |
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| CN105484434A true CN105484434A (en) | 2016-04-13 |
| CN105484434B CN105484434B (en) | 2017-07-18 |
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| CN201510942156.6A Active CN105484434B (en) | 2015-12-16 | 2015-12-16 | The levelling Rotating fields of large span taper roofing and its construction method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109137962A (en) * | 2018-10-17 | 2019-01-04 | 攀钢集团工程技术有限公司 | Large-scale circular spherical surface arch bar concrete and surface bituminous concrete foundation construction method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0748937A (en) * | 1992-06-19 | 1995-02-21 | Yuuwa Kasei Kk | Independent roof formed onto existing exposed waterproof layer and forming method of independent roof on existing exposed waterproof layer |
| CN103615063A (en) * | 2013-12-12 | 2014-03-05 | 深圳市鹏城建筑集团有限公司 | Construction method for pouring pitched roof concrete and steel bar structure used in method |
| CN104631829A (en) * | 2014-12-31 | 2015-05-20 | 东莞市万科建筑技术研究有限公司 | Technique for high-precision leveling of structural flooring |
| CN105089276A (en) * | 2015-07-21 | 2015-11-25 | 中建一局集团建设发展有限公司 | Plate surface level control tool and construction method for applying the tool to large-area concrete plate |
| CN205242858U (en) * | 2015-12-16 | 2016-05-18 | 中国建筑第二工程局有限公司 | Dysmorphism curved surface roofing screed -coat structure |
-
2015
- 2015-12-16 CN CN201510942156.6A patent/CN105484434B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0748937A (en) * | 1992-06-19 | 1995-02-21 | Yuuwa Kasei Kk | Independent roof formed onto existing exposed waterproof layer and forming method of independent roof on existing exposed waterproof layer |
| CN103615063A (en) * | 2013-12-12 | 2014-03-05 | 深圳市鹏城建筑集团有限公司 | Construction method for pouring pitched roof concrete and steel bar structure used in method |
| CN104631829A (en) * | 2014-12-31 | 2015-05-20 | 东莞市万科建筑技术研究有限公司 | Technique for high-precision leveling of structural flooring |
| CN105089276A (en) * | 2015-07-21 | 2015-11-25 | 中建一局集团建设发展有限公司 | Plate surface level control tool and construction method for applying the tool to large-area concrete plate |
| CN205242858U (en) * | 2015-12-16 | 2016-05-18 | 中国建筑第二工程局有限公司 | Dysmorphism curved surface roofing screed -coat structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109137962A (en) * | 2018-10-17 | 2019-01-04 | 攀钢集团工程技术有限公司 | Large-scale circular spherical surface arch bar concrete and surface bituminous concrete foundation construction method |
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| CN105484434B (en) | 2017-07-18 |
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