CN103276894A - Support system of large-cross-section girder transfer floor of hollow floor system and construction technology - Google Patents
Support system of large-cross-section girder transfer floor of hollow floor system and construction technology Download PDFInfo
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- CN103276894A CN103276894A CN2013102186829A CN201310218682A CN103276894A CN 103276894 A CN103276894 A CN 103276894A CN 2013102186829 A CN2013102186829 A CN 2013102186829A CN 201310218682 A CN201310218682 A CN 201310218682A CN 103276894 A CN103276894 A CN 103276894A
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Abstract
The invention relates to a support system of a large-cross-section girder transfer floor of a hollow floor system and a construction technology. The support system comprises a ground floor reinforcing support, a transfer girder formwork, a transfer girder bottom support and a shape steel unloading platform. The transfer girder formwork comprises a girder bottom formwork and girder side formworks, the ground floor reinforcing support comprises a plurality of floors which are supported between floor systems on the lower portion of the girder transfer floor, and the bottom reinforcing support is arranged between one floor system and raft concrete. The shape steel unloading platform is located on a first floor system on the lower portion of the girder transfer floor, the transfer girder bottom support is arranged on the shape steel unloading platform, and the transfer girder formwork is arranged on the transfer girder bottom support. The shape steel unloading platform is a planer steel truss formed by laying of I-beams, and a grid structure and a girder structure of the first floor system of the lower portion of the girder transfer layer are correspondingly juxtaposed on the upper side of the shape steel unloading platform. The ground floor reinforcing support is supported between girders of the floor systems. By the support system and the construction technology, stressed area can be enlarged, load transmission is guaranteed, construction cost is lowered, and bearing reliability of a rigid unloading platform is improved.
Description
Technical field
The present invention relates to the technical field of highrise building Vierendeel girder, particularly relate to support system and the construction technology of a kind of hollow building cover heavy in section beam-type transition layer.
Background technology
Modern high-rise building develops to multi-functional and comprehensive purposes, and in order to satisfy construction function request, structure must be arranged with opposite with usual manner.Conversion layer is being born transmission and the distribution of vertical load and horizontal loading, and conversion layer such as same aerial basis are in key position in highrise building.Formwork erection becomes emphasis and the difficult point of construction undoubtedly in the construction of structural transition layer.
Heavy in section conversion beam work progress complexity, and from great, consumptive material is many, and the labour intensity of construction is big continuously, the work progress complexity, difficulty of construction is big, and is all the more so for the highrise building that adopts the hollow building cover plate especially.Because concrete hollow building roof can obtain bigger hollow rate and alleviate dead load, improve the building function of use.But the heavy in section beam-type transition layer structure construction on hollow building cover top is complicated especially, can not construct according to common process, need take the special technique measure during construction, guarantees construction quality.
Summary of the invention
To the objective of the invention is in order addressing the above problem, support system and the construction technology of a kind of hollow building cover heavy in section beam-type transition layer to be provided.
Technical scheme of the present invention is: a kind of hollow building cover heavy in section beam-type transition layer support system, comprise that bottom reinforces support at the bottom of supports, conversion beam template, the conversion beam, shaped steel off-load platform, the conversion beam template comprises beam bottom board plate and side template, described bottom is reinforced to support and is comprised some layers, be supported on respectively between each floor lid of beam-type transition layer bottom, the bottom is reinforced to support and is arranged between superstructure and the raft board concrete; Shaped steel off-load platform is positioned on the first floor superstructure of beam-type transition layer bottom, supports being arranged on the shaped steel off-load platform at the bottom of the conversion beam, and the conversion beam template supports at the bottom of being arranged on conversion beam; Described shaped steel off-load platform is that i iron is laid the plane steel mesh frame that forms, corresponding with the girder construction of the first floor superstructure of beam-type transition layer bottom also placed on it of space truss structure; Bottom is reinforced and is supported between the beam that also is supported on each floor lid.
Support at the bottom of the described conversion beam and be followed successively by the lumps of wood, adjustable supports head, support scaffolding from top to bottom, the adjustable support head is supported on the lumps of wood on the beam bottom board plate, the lower support of support scaffolding is on shaped steel off-load platform, and the cross bar of support scaffolding bottom is provided with antiskid and moves fastener.
Described i iron is the shaped steel of same specification in the builder's jack construction.
Reinforce to support for every layer and comprise the lumps of wood and the middle scaffold at two ends up and down.
A kind of hollow building cover heavy in section beam-type transition layer construction technology comprises the steps:
1.. build support system according to foregoing structure;
2.. according to the first floor reinforcing bar of half the height colligation conversion beam that is no more than the conversion beam height, and install the level first floor side form of conversion beam, cast conversion beam first floor concrete;
3.. in the concrete while of maintenance first floor, the second layer reinforcing bar of colligation conversion beam, and install second layer side template, and when treating that the first floor concrete curing is up to standard, bonding surface is handled, pour into a mould conversion beam second layer concrete then;
4.. maintenance second layer concrete is to up to standard.
Described step supports at the bottom of the conversion beam in 1. and is followed successively by the lumps of wood, adjustable supports head, support scaffolding from top to bottom, the adjustable support head is supported on the lumps of wood on the beam bottom board plate, the lower support of support scaffolding is on shaped steel off-load platform, and the cross bar of support scaffolding bottom is provided with antiskid and moves fastener; Described i iron is the shaped steel of same specification in the builder's jack construction; Reinforce to support for every layer and comprise the lumps of wood and the middle scaffold at two ends up and down.
Beneficial effect of the present invention
This invention hollow building cover heavy in section beam-type transition layer cast-in-situ concrete structure adopts evenly arranges i iron off-load rigid platfor on the hollow building cover Vierendeel girder, enlarge lifting surface area, and the stressed even diffusion of hollow building cover has guaranteed Load Transfer.
Take the form removal support system and adopt the superposed beam pouring construction method at platform, landing beam adopts the same specification shaped steel that uses in the construction, can reuse behind the dismounting platform, has reduced construction cost.
Conversion layer beam concrete is constructed at twice, adopts the superposed beam casting method, after water superposed beam weight concrete and working load and be subjected to by concreting part joist support.Reduce the load of steel I-beam, improved the carrying reliability of off-load rigid platfor.
Description of drawings
Fig. 1 is this hollow building cover heavy in section beam-type transition layer support system general structure schematic diagram;
Fig. 2 is the detail of construction of Fig. 1 middle and upper part;
Fig. 3 is the detail of construction of the foot among Fig. 2.
1. heavy in section beam-type transition layer beams to be built among the figure, 2. the hollow building cover plate, 3. the raft board concrete, 4. the beam bottom board plate, 5. support at the bottom of the conversion beam, 6. bottom reinforce support, 7. shaped steel off-load platform, 8. side template, 9. antiskid moves fastener, 1-1. conversion beam second layer concrete, 1-2. bonding surface, 1-3. conversion beam first floor concrete, the 5-1. lumps of wood, 5-2. adjustable supports head, 5-3. support scaffolding, the 6-1. lumps of wood, 6-2. support scaffolding, the 6-3. lumps of wood.
The specific embodiment
Embodiment one: referring to Fig. 1-Fig. 3, a kind of hollow building cover heavy in section beam-type transition layer support system, comprise that bottom reinforces support at the bottom of supports, conversion beam template, the conversion beam, shaped steel off-load platform, the conversion beam template comprises beam bottom board plate and side template, described bottom is reinforced to support and is comprised some layers, be supported on respectively between each floor lid of beam-type transition layer bottom, the bottom is reinforced to support and is arranged between superstructure and the raft board concrete; Shaped steel off-load platform is positioned on the first floor superstructure of beam-type transition layer bottom, supports being arranged on the shaped steel off-load platform at the bottom of the conversion beam, and the conversion beam template supports at the bottom of being arranged on conversion beam; Described shaped steel off-load platform is that i iron is laid the plane steel mesh frame that forms, corresponding with the girder construction of the first floor superstructure of beam-type transition layer bottom also placed on it of space truss structure, and the beam of i iron and superstructure is arranged vertically; Bottom is reinforced and is supported between the beam that also is supported on each floor lid.
Support at the bottom of the described conversion beam and be followed successively by the lumps of wood, adjustable supports head, support scaffolding from top to bottom, the adjustable support head is supported on the lumps of wood on the beam bottom board plate, the lower support of support scaffolding is on shaped steel off-load platform, and the cross bar of support scaffolding bottom is provided with antiskid and moves fastener.
Described i iron is the shaped steel of same specification in the builder's jack construction.Treat shaped steel to be used for setting up builder's jack after this conversion layer construction finishes, save steel.
Reinforce to support for every layer and comprise the lumps of wood and the middle scaffold at two ends up and down.
Embodiment two: referring to Fig. 1-Fig. 3, a kind of hollow building cover heavy in section beam-type transition layer construction technology comprises the steps:
1.. build support system according to the structure described in the embodiment one;
2.. according to the first floor reinforcing bar of half the height colligation conversion beam that is no more than the conversion beam height, and install the level first floor side form of conversion beam, cast conversion beam first floor concrete;
3.. in the concrete while of maintenance first floor, the second layer reinforcing bar of colligation conversion beam, and install second layer side template, and when treating that the first floor concrete curing is up to standard, bonding surface is handled, pour into a mould conversion beam second layer concrete then;
4.. maintenance second layer concrete is to up to standard.
Described step supports at the bottom of the conversion beam in 1. and is followed successively by the lumps of wood, adjustable supports head, support scaffolding from top to bottom, the adjustable support head is supported on the lumps of wood on the beam bottom board plate, the lower support of support scaffolding is on shaped steel off-load platform, and the cross bar of support scaffolding bottom is provided with antiskid and moves fastener; Described i iron is the shaped steel of same specification in the builder's jack construction; Reinforce to support for every layer and comprise the lumps of wood and the middle scaffold at two ends up and down.
Claims (6)
1. hollow building cover heavy in section beam-type transition layer support system, comprise that bottom reinforces support at the bottom of supports, conversion beam template, the conversion beam, shaped steel off-load platform, the conversion beam template comprises beam bottom board plate and side template, it is characterized in that: described bottom is reinforced to support and is comprised some layers, be supported on respectively between each floor lid of beam-type transition layer bottom, the bottom is reinforced to support and is arranged between superstructure and the raft board concrete; Shaped steel off-load platform is positioned on the first floor superstructure of beam-type transition layer bottom, supports being arranged on the shaped steel off-load platform at the bottom of the conversion beam, and the conversion beam template supports at the bottom of being arranged on conversion beam; Described shaped steel off-load platform is that i iron is laid the plane steel mesh frame that forms, corresponding with the girder construction of the first floor superstructure of beam-type transition layer bottom also placed on it of space truss structure; Bottom is reinforced and is supported between the beam that also is supported on each floor lid.
2. hollow building cover according to claim 1 heavy in section beam-type transition layer support system, it is characterized in that: support being followed successively by the lumps of wood, adjustable supports head, support scaffolding from top to bottom at the bottom of the described conversion beam, the adjustable support head is supported on the lumps of wood on the beam bottom board plate, the lower support of support scaffolding is on shaped steel off-load platform, and the cross bar of support scaffolding bottom is provided with antiskid and moves fastener.
3. hollow building cover according to claim 1 heavy in section beam-type transition layer support system, it is characterized in that: described i iron is the shaped steel of same specification in the builder's jack construction.
4. hollow building cover according to claim 1 heavy in section beam-type transition layer support system is characterized in that: reinforce to support for every layer and comprise the lumps of wood and the middle scaffold at two ends up and down.
5. a hollow building cover heavy in section beam-type transition layer construction technology comprises the steps:
1.. build support system according to the described structure of claim 1;
2.. according to the first floor reinforcing bar of half the height colligation conversion beam that is no more than the conversion beam height, and install the level first floor side form of conversion beam, cast conversion beam first floor concrete;
3.. in the concrete while of maintenance first floor, the second layer reinforcing bar of colligation conversion beam, and install second layer side template, and when treating that the first floor concrete curing is up to standard, bonding surface is handled, pour into a mould conversion beam second layer concrete then;
4.. maintenance second layer concrete is to up to standard.
6. hollow building cover according to claim 5 heavy in section beam-type transition layer construction technology, it is characterized in that: described step supports at the bottom of the conversion beam in 1. and is followed successively by the lumps of wood, adjustable supports head, support scaffolding from top to bottom, the adjustable support head is supported on the lumps of wood on the beam bottom board plate, the lower support of support scaffolding is on shaped steel off-load platform, and the cross bar of support scaffolding bottom is provided with antiskid and moves fastener; Described i iron is the shaped steel of same specification in the builder's jack construction; Reinforce to support for every layer and comprise the lumps of wood and the middle scaffold at two ends up and down.
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| CN2013102186829A CN103276894A (en) | 2013-06-04 | 2013-06-04 | Support system of large-cross-section girder transfer floor of hollow floor system and construction technology |
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| CN2013102186829A CN103276894A (en) | 2013-06-04 | 2013-06-04 | Support system of large-cross-section girder transfer floor of hollow floor system and construction technology |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103452333A (en) * | 2013-09-23 | 2013-12-18 | 山东双得利建设科技有限公司 | Device and method for unloading chord members of grid structures |
| CN103526932A (en) * | 2013-10-24 | 2014-01-22 | 成军 | Section steel self-unloading construction method of high-rise building conversion beam |
| CN105178490A (en) * | 2015-08-07 | 2015-12-23 | 北京城建北方建设有限责任公司 | Double-layer step-by-step laminated construction method of ultrahigh and ultrathick prestressed concrete floor |
| CN106988412A (en) * | 2017-04-01 | 2017-07-28 | 浙江省东阳第三建筑工程有限公司 | A kind of Box-transfer storey Rotating fields top-down construction method |
| CN107780656A (en) * | 2016-08-31 | 2018-03-09 | 江苏南通二建集团有限公司 | Application process of the steel combined support system in super-span conversion beam formwork system |
| CN111927090A (en) * | 2020-08-10 | 2020-11-13 | 湖南省第六工程有限公司 | Steel pipe support construction structure of beam type conversion layer of high-rise building and construction method thereof |
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| JPH11141140A (en) * | 1997-11-06 | 1999-05-25 | Takenaka Komuten Co Ltd | Rebuilding method of building |
| CN101560803A (en) * | 2009-05-14 | 2009-10-21 | 湖南长大建设集团股份有限公司 | Construction method of reinforced concrete truss conversion layer structure |
| CN101761231A (en) * | 2009-12-31 | 2010-06-30 | 青建集团股份公司 | Supporting structure of beam type conversion layer template and method for strengthening substructure |
| CN102619331A (en) * | 2011-03-08 | 2012-08-01 | 青光绪 | Once molding construction method of beam-type conversion layer of high-rise building by steel pipe supporting and laminated pouring |
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| JPH11141140A (en) * | 1997-11-06 | 1999-05-25 | Takenaka Komuten Co Ltd | Rebuilding method of building |
| CN101560803A (en) * | 2009-05-14 | 2009-10-21 | 湖南长大建设集团股份有限公司 | Construction method of reinforced concrete truss conversion layer structure |
| CN101761231A (en) * | 2009-12-31 | 2010-06-30 | 青建集团股份公司 | Supporting structure of beam type conversion layer template and method for strengthening substructure |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103452333A (en) * | 2013-09-23 | 2013-12-18 | 山东双得利建设科技有限公司 | Device and method for unloading chord members of grid structures |
| CN103452333B (en) * | 2013-09-23 | 2015-08-19 | 山东双得利建设科技有限公司 | Space truss structure chord member emptier and discharging method |
| CN103526932A (en) * | 2013-10-24 | 2014-01-22 | 成军 | Section steel self-unloading construction method of high-rise building conversion beam |
| CN103526932B (en) * | 2013-10-24 | 2015-04-22 | 浩嘉恒业建设发展有限公司 | Section steel self-unloading construction method of high-rise building conversion beam |
| CN105178490A (en) * | 2015-08-07 | 2015-12-23 | 北京城建北方建设有限责任公司 | Double-layer step-by-step laminated construction method of ultrahigh and ultrathick prestressed concrete floor |
| CN107780656A (en) * | 2016-08-31 | 2018-03-09 | 江苏南通二建集团有限公司 | Application process of the steel combined support system in super-span conversion beam formwork system |
| CN106988412A (en) * | 2017-04-01 | 2017-07-28 | 浙江省东阳第三建筑工程有限公司 | A kind of Box-transfer storey Rotating fields top-down construction method |
| CN111927090A (en) * | 2020-08-10 | 2020-11-13 | 湖南省第六工程有限公司 | Steel pipe support construction structure of beam type conversion layer of high-rise building and construction method thereof |
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Application publication date: 20130904 |