CN101205763A - Construction method for building formwork platform with bailey truss - Google Patents
Construction method for building formwork platform with bailey truss Download PDFInfo
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- CN101205763A CN101205763A CNA2007100702305A CN200710070230A CN101205763A CN 101205763 A CN101205763 A CN 101205763A CN A2007100702305 A CNA2007100702305 A CN A2007100702305A CN 200710070230 A CN200710070230 A CN 200710070230A CN 101205763 A CN101205763 A CN 101205763A
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Abstract
The invention relates to a construction method by using a Bailey truss to build up a formwork supporting platform, which belongs to a construction method for a fixed structure. When an air gallery is built up on a high-rises building, the formwork supporting construction platform is needed to be built up in advance, and a formwork supporting rack and a scaffold are arranged on the platform for subsequent placing construction. The prior construction method by using a suspension truss to build up a formwork supporting platform has the disadvantages of complex construction operation, low safety, long operation time limit, slow progress and high construction cost. The invention provides the construction method by using the Bailey truss to build up the formwork supporting platform, and the technical proposal of the construction method comprises the following steps in sequence: A. assembly and erection of the truss; B. translatory extension of a cantilever of the truss; C. erection of a revetment of the truss into place; D. laying of the construction platform. The formwork supporting platform of the air gallery is built up through using the field built cantilever of the Bailey truss on the high-rise building to access an opposite bank through translation, thereby construction safety is good and cycle is short; the Bailey truss is convenient in lease and can be used repeatedly, thereby construction cost is low and economic benefit is good.
Description
[technical field]
The present invention relates to the fixed buildings job practices, particularly a kind of job practices of building the formwork platform with Bailey truss.
[background technology]
Along with the raising of domestic construction level, the aerial vestibule of cast-in-situ reinforced concrete structure has appearred on the increasing highrise building.Because steel bar concrete can't bear external force before solidifying, need when therefore constructing to build the operation platform that a formwork is used in the air at height in advance, support for shuttering and scaffold are set thereon carry out pouring construction.Have now between two high-rise buildings and to hang truss and make the job practices of platform and need job execution aloft build the truss that connects two buildings, the constructing operation complexity, safety is low; Operate long in time limitly, progress is slow; Whole construction cost height.
[summary of the invention]
The technical assignment of the technical problem to be solved in the present invention and proposition is to overcome existing highrise building to build the defects of construction of vestibule with suspension erection truss formwork platform, a kind of job practices of building the formwork platform with Bailey truss is provided, this job practices property easy to operate and safe is good, be convenient to continuous construction, construction cost is low.
Technical scheme of the present invention is: a kind of job practices of building the formwork platform with Bailey truss is characterized in that may further comprise the steps according to the order of sequence:
A. truss assembling and setting up, on the high-order floor of the building of vestibule one side with the truss sheet with strengthen chord member and be assembled into Bailey truss, assembling finish the back with jack with truss jack-up in accordance with regulations spacing put into flat rolling, lay flat the rolling of correspondence simultaneously on the opposite bank on the floor;
B. the translation of truss cantilever is stretched out, and the end user tries hard to recommend and draws or truss is stretched out in the outside translation of mechanical traction;
C. the truss revetment, set up in placely, the overhanging termination of truss is refuted the flat back of rolling of opposite bank floor and is continued translation and stretch out truss, treat the truss main span stretch out fully the back with jack with truss jack-up, take out flat rolling, truss is shelved on the high-order floor of building;
D. the laying of operation platform, drawing on truss sets up defences protects plain net, lays i iron, laying construction scaffold passage, sets up formwork system.The present invention builds the translation of Bailey truss cantilever by the high-rise scene of a side building and plugs into behind the opposite bank as the formwork construction platform, and the short construction period safety is good, to highly unrestricted, does not need complexity to set up equipment; After construction was finished, by pull back truss and remove of abovementioned steps reverse operating, the truss equipment of dismounting was reusable, the construction less investment, and cost is low.
When described truss is assembled and is set up, install the nose girder truss additional in the truss foremost, scratch on the described nose girder truss front end, treat to remove the nose girder truss after the truss main span is stretched out fully.Offset produce when the truss cantilever stretches out sagging by the nose girder truss of scratching on the front end, guarantee that truss is plugged into smoothly to cost the flat of opposite bank and roll.
Truss is pressed in when being shelved on the floor on the floor framework beam slab, completely spreads the thick plank of 2cm between framework beam slab and the truss, makes support for shuttering under the floor lateral, building place and encrypts bracing reinforcement.Increase the pressurized contact surface by completely spreading plank, truss is evenly distributed, the concrete of better protection framework beam slab surface layer to the pressure of building frame beam slab; Support for shuttering is encrypted bracing reinforcement and be can be used for the reinforcement protection Vierendeel girder.
When truss was assembled and set up, the truss afterbody added counter weight device.By counterweight the center of gravity of whole truss is dropped on all the time and flat roll the back, the potential safety hazard of avoiding the truss center of gravity to lean forward and produce.
Truss selects for use 321 Bailey truss sheets and 321 to strengthen the chord member composition, assembles over against employing level peace diagonal brace between the two adjacent truss sheets.Select ready-made Bailey truss for use, convenient construction unit buys or leases; Adopt described connected mode to be assembled with between the truss sheet and be beneficial to and improve truss stability.
The present invention builds the formwork platform of aerial vestibule after being plugged in the opposite bank in the Bailey truss cantilever translation of using the scene to build on the highrise building, the good cycle of working security is short; Bailey truss is convenient to lease and can be used repeatedly, and construction cost is low, and is good in economic efficiency.
The present invention is described further below in conjunction with description of drawings and the specific embodiment.
[description of drawings]
Fig. 1: schematic diagram is stretched out in the translation of truss cantilever in the job practices of the present invention.
Fig. 2: job practices Bailey truss of the present invention is built the schematic diagram after finishing.
Fig. 3: Bailey truss is as the schematic diagram of operation platform.
Among the figure: 1. the truss sheet, 2. strengthen chord member, 3. plank, 4. flat rolling.
[specific embodiment]
As Fig. 1～shown in Figure 3, a kind of job practices of building the formwork platform with Bailey truss, to build the formwork construction platform be example to build aerial vestibules at 33 layers, it is characterized in that may further comprise the steps according to the order of sequence:
A. truss is assembled and is set up, at 33 layers 321 Bailey truss sheets and 321 are strengthened chord member and be assembled into Bailey truss, connect over against employing level peace diagonal brace between the two adjacent Bailey truss sheets, the Bailey truss foremost installs the nose girder truss of scratching on the front end additional, assembling finish the back with jack with Bailey truss jack-up in accordance with regulations spacing put into to put down and roll, lay corresponding flat rolling on the floor on the opposite bank simultaneously, can add counter weight device at the Bailey truss afterbody if necessary in addition;
B. the translation of truss cantilever is stretched out, and the end user tries hard to recommend and draws or Bailey truss is stretched out in the outside translation of mechanical traction;
C. the truss revetment, set up in place, continue the main span that Bailey truss is stretched out in translation Deng the nose girder truss flat back of rolling of opposite bank floor of plugging into, treat main span stretch out fully the back with jack with Bailey truss jack-up, take out flat rolling, Bailey truss is shelved on 33 layers of (see figure 2), truss is pressed on the floor framework beam slab, completely spread the thick plank of 2cm between framework beam slab and the truss in advance, in advance 30 layers, three eleventh floors and three Floor 12 limit intercropping support for shuttering are encrypted bracing reinforcement, the nose girder truss is promptly dismountable after the Bailey truss main span is stretched out fully;
D. the laying of operation platform, drawing on truss sets up defences protects plain net, lays i iron, laying construction scaffold passage, sets up the formwork system (see figure 3).
Claims (6)
1. job practices of building the formwork platform with Bailey truss is characterized in that may further comprise the steps according to the order of sequence:
A. truss assembling and setting up, on the high-order floor of the building of vestibule one side with the truss sheet with strengthen chord member and be assembled into Bailey truss, assembling finish the back with jack with truss jack-up in accordance with regulations spacing put into flat rolling, lay flat the rolling of correspondence simultaneously on the opposite bank on the floor;
B. the translation of truss cantilever is stretched out, and the end user tries hard to recommend and draws or truss is stretched out in the outside translation of mechanical traction;
C. the truss revetment, set up in placely, the overhanging termination of truss is refuted the flat back of rolling of opposite bank floor and is continued translation and stretch out truss, treat the truss main span stretch out fully the back with jack with truss jack-up, take out flat rolling, truss is shelved on the high-order floor of building;
D. the laying of operation platform, drawing on truss sets up defences protects plain net, lays i iron, laying construction scaffold passage, sets up formwork system.
2. job practices of building the formwork platform with Bailey truss according to claim 1, it is characterized in that when described truss is assembled and set up, install the nose girder truss additional in the truss foremost, scratch on the described nose girder truss front end, treat to remove the nose girder truss after the truss main span is stretched out fully.
3. job practices of building the formwork platform with Bailey truss according to claim 1, it is characterized in that described truss is pressed in when being shelved on the floor on the floor framework beam slab, completely spread the thick plank of 2cm between framework beam slab and the truss, make support for shuttering under the floor lateral, building place and encrypt bracing reinforcement.
4. according to claim 1 or 2 or 3 described job practicess of building the formwork platform, it is characterized in that the truss afterbody adds counter weight device when truss is assembled and set up with Bailey truss.
5. job practices of building the formwork platform with Bailey truss according to claim 1 is characterized in that described truss selects for use 321 Bailey truss sheets and 321 to strengthen chord members and form, and assembles over against employing level peace diagonal brace between the two adjacent truss sheets.
6. job practices of building the formwork platform with Bailey truss according to claim 4 is characterized in that described truss selects for use 321 Bailey truss sheets and 321 to strengthen chord members and form, and assembles over against employing level peace diagonal brace between the two adjacent truss sheets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100702305A CN101205763A (en) | 2007-07-31 | 2007-07-31 | Construction method for building formwork platform with bailey truss |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100702305A CN101205763A (en) | 2007-07-31 | 2007-07-31 | Construction method for building formwork platform with bailey truss |
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| Publication Number | Publication Date |
|---|---|
| CN101205763A true CN101205763A (en) | 2008-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100702305A Pending CN101205763A (en) | 2007-07-31 | 2007-07-31 | Construction method for building formwork platform with bailey truss |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102912973A (en) * | 2012-10-25 | 2013-02-06 | 广州市恒盛建设工程有限公司 | Space truss platform for round building construction and construction method using same |
| CN103711112A (en) * | 2012-10-09 | 2014-04-09 | 中国葛洲坝集团股份有限公司 | Combined type bailey frame load-bearing shelving used for pouring large-span concrete beam |
| CN108222480A (en) * | 2017-12-15 | 2018-06-29 | 北京工业大学 | A kind of high-altitude overhanging main truss posture steel mould base construction platform |
| CN109653076A (en) * | 2018-12-24 | 2019-04-19 | 四川港航建设工程有限公司 | Combined type flood control is passed the flood period lock head shellfish Lei Gangqiao and construction method |
-
2007
- 2007-07-31 CN CNA2007100702305A patent/CN101205763A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103711112A (en) * | 2012-10-09 | 2014-04-09 | 中国葛洲坝集团股份有限公司 | Combined type bailey frame load-bearing shelving used for pouring large-span concrete beam |
| CN103711112B (en) * | 2012-10-09 | 2015-09-02 | 中国葛洲坝集团股份有限公司 | Build large-span concrete beam combined type Bailey bracket bearing bent frame |
| CN102912973A (en) * | 2012-10-25 | 2013-02-06 | 广州市恒盛建设工程有限公司 | Space truss platform for round building construction and construction method using same |
| CN102912973B (en) * | 2012-10-25 | 2014-09-10 | 广州市恒盛建设工程有限公司 | Space truss platform for round building construction and construction method using same |
| CN108222480A (en) * | 2017-12-15 | 2018-06-29 | 北京工业大学 | A kind of high-altitude overhanging main truss posture steel mould base construction platform |
| CN108222480B (en) * | 2017-12-15 | 2024-02-02 | 北京工业大学 | High-altitude cantilever main truss type steel formwork construction platform |
| CN109653076A (en) * | 2018-12-24 | 2019-04-19 | 四川港航建设工程有限公司 | Combined type flood control is passed the flood period lock head shellfish Lei Gangqiao and construction method |
| CN109653076B (en) * | 2018-12-24 | 2021-01-08 | 四川港航建设工程有限公司 | Combined type flood control flood gate first bailey steel bridge and construction method |
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Open date: 20080625 |