CN103821335A - High-altitude long-span cantilever formwork - Google Patents
High-altitude long-span cantilever formwork Download PDFInfo
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- CN103821335A CN103821335A CN201410072036.0A CN201410072036A CN103821335A CN 103821335 A CN103821335 A CN 103821335A CN 201410072036 A CN201410072036 A CN 201410072036A CN 103821335 A CN103821335 A CN 103821335A
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- vertical rod
- oblique vertical
- support bar
- cantilever beams
- oblique
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Abstract
The invention discloses a high-altitude long-span cantilever formwork which comprises a cantilever beam, wherein one end of the cantilever beam is connected with an embedded part on an upper-layer floor; a lower surface of a section of the cantilever beam extending out of the floor is connected with a first inclined vertical rod and a second inclined vertical rod; the lower ends of the first inclined vertical rod and the second inclined vertical rod are connected with each other and the joint is connected with the embedded part on a lower-layer floor; a plurality of supporting rods are arranged between the first inclined vertical rod and the second inclined vertical rod; a large triangular plane formed by the first inclined vertical rod, the second inclined vertical rod and the cantilever beam is cut into a plurality of small triangular planes by the supporting rods. The high-altitude long-span cantilever formwork has the advantages of short construction period, low cost, high rigidity and higher safety and stability.
Description
Technical field
The present invention relates to the high-altitude long-span mould bases of encorbelmenting.
Background technology
Overlength is corniced outward and mouthful is applied in architectural design, can build serious, simple and unsophisticated architectural style, is therefore deeply subject to liking of building designers.In work progress, need to use the cantilevered structure of large span as support, use common ground steel pipe scaffold as support system, long construction period, material cost is high, adopts steel pipe builder's jack as braced structures, and materials'use amount is relatively low, construct comparatively simple, but the rigidity of steel pipe builder's jack is less, less stable, cannot meet the construction requirement of large load.
Summary of the invention
Technical problem to be solved by this invention is just to provide a kind of high-altitude long-span mould bases of encorbelmenting, short construction period, and cost is low, greatly and more safety and stability of rigidity.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
The high-altitude long-span mould bases of encorbelmenting, comprise Cantilever Beams, described Cantilever Beams one end is connected with the built-in fitting of upper floor, described Cantilever Beams stretches out flooring section soffit and connects the first oblique vertical rod and the second oblique vertical rod, the described first oblique vertical rod interconnects with the lower end of the second oblique vertical rod and tie point is connected with the built-in fitting of lower floor flooring, between the described first oblique vertical rod and the second oblique vertical rod, be provided with several support bars, the large planar delta that described support bar forms the first oblique vertical rod and the second oblique vertical rod and Cantilever Beams is divided into several little planar deltas.
Preferably, the mid point that flooring section soffit is stretched out with Cantilever Beams respectively in the upper end of the described first oblique vertical rod and the second oblique vertical rod is connected with end points.
Preferably, described support bar comprises two transverse support bar and two vertical supporting bars, described transverse support bar left end is connected with the trisection point of the first oblique vertical rod, described transverse support bar right-hand member is connected with the trisection point of the second oblique vertical rod, and the upper and lower two ends of described vertical supporting bar are connected with the quadrangle diagonal angle that the first oblique vertical rod, the second oblique vertical rod form with transverse support bar respectively.
Preferably, described Cantilever Beams adopts 16# i iron, and the described first oblique vertical rod, the second oblique vertical rod and support bar adopt 12# i iron.
Preferably, described support bar both sides are respectively equipped with steel pipe, and described steel pipe two ends and support bar two ends are weldingly connected.
The present invention adopts technique scheme, the first oblique vertical rod and the second oblique vertical rod are set below Cantilever Beams as support bar, Cantilever Beams and the first oblique vertical rod, the second oblique vertical rod forms planar delta, structure is more stable, reinforce and be provided with support bar between the first oblique vertical rod and the second oblique vertical rod, the large planar delta that support bar further forms the first oblique vertical rod and the second oblique vertical rod and Cantilever Beams is again divided into several little planar deltas, further strengthened the encorbelmenting rigidity of mould bases, this mould bases of encorbelmenting can be processed as entirety in advance, lift afterwards to job site and reinforce, therefore can greatly shorten construction period.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the invention will be further described:
Fig. 1 is structural representation of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is elaborated.
As shown in Figure 1, the present invention includes Cantilever Beams 1, described Cantilever Beams one end is connected with the built-in fitting 2 of upper floor, described Cantilever Beams stretches out flooring section soffit and connects the first oblique vertical rod 301 and the second oblique vertical rod 302, the described first oblique vertical rod interconnects with the lower end of the second oblique vertical rod and tie point is connected with the built-in fitting of lower floor flooring, between the described first oblique vertical rod and the second oblique vertical rod, be provided with several support bars 4, the large planar delta that described support bar forms the first oblique vertical rod and the second oblique vertical rod and Cantilever Beams is divided into several little planar deltas.The mid point that flooring section soffit is stretched out with Cantilever Beams 1 respectively in the upper end of the described first oblique vertical rod 301 and the second oblique vertical rod 302 is connected with end points.Described support bar 4 comprises two transverse support bar 401 and two vertical supporting bars 402, described transverse support bar left end is connected with the trisection point of the first oblique vertical rod 301, described transverse support bar right-hand member is connected with the trisection point of the second oblique vertical rod 302, and described vertical supporting bar is connected with the quadrangle diagonal angle that the first oblique vertical rod, the second oblique vertical rod form with transverse support bar respectively at two ends Shang Xia 402.Described Cantilever Beams 1 adopts 16# i iron, and the described first oblique vertical rod 301, the second oblique vertical rod 302 and support bar 4 adopt 12# i iron.Described support bar 4 both sides are respectively equipped with steel pipe 5, and described steel pipe two ends and support bar two ends are weldingly connected.
Specific construction technique of the present invention, comprises the steps:
The present invention includes following steps:
Step 1, assembles the mould bases of encorbelmenting;
Step 2, floor is measured unwrapping wire built-in fitting is set;
Step 3, lifts the mould bases of encorbelmenting;
Step 4, formwork erection;
Step 5, load test.
Assemble the mould bases of encorbelmenting, according to the Mold Base Design figure that encorbelments, successively by the first oblique vertical rod and the second oblique vertical rod and Cantilever Beams bottom welding, afterwards the first oblique vertical rod and the second oblique vertical rod are welded as a whole, then measure and draw trisection point in the first oblique vertical rod and the second oblique vertical rod, welding afterwards support bar and the support bar both sides steel pipe for reinforcing, can there is not out-of-plane distortion in the mould bases of guaranteeing to encorbelment.
When floor measurement unwrapping wire arranges built-in fitting, on floor face, eject line of ink marker full-size drawing according to floor height and cantilever span, and on upper and lower two layers of floor embedding built-in fitting, built-in fitting is selected Ф 25 reinforcing bars, at the embedding round steel anchor ring of upper floor, and make round steel anchor ring and built-in fitting be positioned at same plane.
When mould bases is encorbelmented in lifting, lift by tower crane the mould bases of encorbelmenting, floor face 2m is stretched into in the Cantilever Beams one end of encorbelmenting on mould bases, then anchor in floor with Ф 20 round steel anchor rings at Cantilever Beams 0.4m, 1.4m place, Cantilever Beams bottom and diagonal member lower end and the built-in fitting of encorbelmenting on mould bases are weldingly connected.
When formwork erection, set up scaffold floor on the mould bases top of encorbelmenting, on scaffold floor, lay wooden springboard.
When load test, on template, do loading test step by step, load is pressed least favorable place and is considered, get respectively 80%, 100%, 120% of its design load and carry out loading test, the every step of loading test is carried out 2 hours, in the outermost of eaves board and the outermost of truss, observation point is set respectively, and compares with the original point being located on frame column, whether observation deformation values exceedes design load.
Claims (5)
1. the high-altitude long-span mould bases of encorbelmenting, it is characterized in that: comprise Cantilever Beams (1), described Cantilever Beams one end is connected with the built-in fitting (2) of upper floor, described Cantilever Beams stretches out flooring section soffit and connects the first oblique vertical rod (301) and the second oblique vertical rod (302), the described first oblique vertical rod interconnects with the lower end of the second oblique vertical rod and tie point is connected with the built-in fitting of lower floor flooring, between the described first oblique vertical rod and the second oblique vertical rod, be provided with several support bars (4), the large planar delta that described support bar forms the first oblique vertical rod and the second oblique vertical rod and Cantilever Beams is divided into several little planar deltas.
2. the high-altitude long-span according to claim 1 mould bases of encorbelmenting, is characterized in that: the mid point that flooring section soffit is stretched out with Cantilever Beams (1) respectively in the upper end of the described first oblique vertical rod (301) and the second oblique vertical rod (302) is connected with end points.
3. the high-altitude long-span according to claim 1 mould bases of encorbelmenting, it is characterized in that: described support bar (4) comprises two transverse support bar (401) and two vertical supporting bars (402), described transverse support bar left end is connected with the trisection point of the first oblique vertical rod (301), described transverse support bar right-hand member is connected with the trisection point of the second oblique vertical rod (302), and the upper and lower two ends of described vertical supporting bar (402) are connected with the quadrangle diagonal angle that the first oblique vertical rod, the second oblique vertical rod form with transverse support bar respectively.
4. the high-altitude long-span according to claim 1 mould bases of encorbelmenting, is characterized in that: described Cantilever Beams (1) adopts 16# i iron, the described first oblique vertical rod (301), the second oblique vertical rod (302) and support bar (4) employing 12# i iron.
5. the high-altitude long-span according to claim 3 mould bases of encorbelmenting, is characterized in that: described support bar (4) both sides are respectively equipped with steel pipe (5), and described steel pipe two ends and support bar two ends are weldingly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410072036.0A CN103821335A (en) | 2014-02-28 | 2014-02-28 | High-altitude long-span cantilever formwork |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410072036.0A CN103821335A (en) | 2014-02-28 | 2014-02-28 | High-altitude long-span cantilever formwork |
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| CN103821335A true CN103821335A (en) | 2014-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410072036.0A Pending CN103821335A (en) | 2014-02-28 | 2014-02-28 | High-altitude long-span cantilever formwork |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107119904A (en) * | 2017-05-26 | 2017-09-01 | 中国十七冶集团有限公司 | A kind of cantilevered structure truss combined support system |
| CN111042508A (en) * | 2019-11-29 | 2020-04-21 | 中国建筑第四工程局有限公司 | High-altitude overlong cantilever support member and construction method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040216392A1 (en) * | 1997-05-16 | 2004-11-04 | Preston John Clement | Partly retractable construction platform |
| CN101736893A (en) * | 2009-12-16 | 2010-06-16 | 通广建工集团有限公司 | Overhanging type scaffold supporting system |
| CN202689491U (en) * | 2012-06-27 | 2013-01-23 | 江苏正威建设有限公司 | Lower supporting type overhanging scaffold |
| CN203701549U (en) * | 2014-02-28 | 2014-07-09 | 中天建设集团有限公司 | High-altitude large-span cantilever formwork |
-
2014
- 2014-02-28 CN CN201410072036.0A patent/CN103821335A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040216392A1 (en) * | 1997-05-16 | 2004-11-04 | Preston John Clement | Partly retractable construction platform |
| CN101736893A (en) * | 2009-12-16 | 2010-06-16 | 通广建工集团有限公司 | Overhanging type scaffold supporting system |
| CN202689491U (en) * | 2012-06-27 | 2013-01-23 | 江苏正威建设有限公司 | Lower supporting type overhanging scaffold |
| CN203701549U (en) * | 2014-02-28 | 2014-07-09 | 中天建设集团有限公司 | High-altitude large-span cantilever formwork |
Non-Patent Citations (1)
| Title |
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| BAIFAN711: "《21高空大跨度悬挑模架设计施工技术总结》", 《百度文库》, 15 August 2013 (2013-08-15) * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107119904A (en) * | 2017-05-26 | 2017-09-01 | 中国十七冶集团有限公司 | A kind of cantilevered structure truss combined support system |
| CN111042508A (en) * | 2019-11-29 | 2020-04-21 | 中国建筑第四工程局有限公司 | High-altitude overlong cantilever support member and construction method thereof |
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Application publication date: 20140528 |