CN100334308C - Concrete column employing steel box as permanent template and construction method thereof - Google Patents
Concrete column employing steel box as permanent template and construction method thereof Download PDFInfo
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- CN100334308C CN100334308C CNB2005102007082A CN200510200708A CN100334308C CN 100334308 C CN100334308 C CN 100334308C CN B2005102007082 A CNB2005102007082 A CN B2005102007082A CN 200510200708 A CN200510200708 A CN 200510200708A CN 100334308 C CN100334308 C CN 100334308C
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Abstract
The present invention relates to a construction method for a concrete column using a steel box as a permanent moulding board. The present invention comprises the following steps: firstly welding steel box moulding board; the outside box wall of the abutting end of two sections of steel box moulding board is welded and positioned with a steel plate, a column hoop is set along the longitudinal separation of the steel box moulding board, and side wall separation of the steel box moulding board is provided with ventilating viewing holes; a first section reinforcing cage is bound to the height of the first section steel box moulding board, and the first section steel box moulding board is sheathed on the reinforcing cage; binding a second section reinforcing cage, and the second section steel box moulding board is sheathed on the position and is welded with the first section steel box moulding board at combining position; binding the reinforcing cage to the height of a third section steel box moulding board by analogy; cutting a round hole plate from the root of the steel box moulding board; obliquely downwards welding an unloading pipe; the unloading pipe is communicated with a concrete conveying pipe, and the concrete is pumped towards the inner side of the steel box moulding board; compacting the concrete from bottom to top. The present invention can shorten the construction period, simplifies construction procedure, causes an obliquely-twisting column to conveniently and rapidly manufacture, ensures engineering quality, and is suitable for the construction of the obliquely-twisting column in the construction engineering.
Description
(1) technical field
The present invention relates to a kind of steel concrete cylindricality building unit and job practices thereof.
(2) background technology
Existing cylindrical steel reinforced concrete building unit is generally straight shape post, and the structure of straight shape post and construction are ripe.In my National Stadium Project, 124 18 meters high, stride layer, the post of tiltedly turning round that is obliquely installed constructs and brought many technical barriers to engineers and technicians, how to guarantee tiltedly to turn round post and reach design strength, how to realize tiltedly turning round the construction quality that post is conveniently made, how to be guaranteed tiltedly to turn round post, these technical barriers all do not have the solution precedent.
(3) summary of the invention
The purpose of this invention is to provide a kind of concrete column and job practices thereof that adopts the steel case as permanent template, solution is tiltedly turned round post and is guaranteed tiltedly to turn round the problem that post reaches design strength and design shape; Also solve will specify gradient tiltedly turn round the problem that post stands on assigned address; And the support and the construction problem of post are tiltedly turned round in solution.
Technical scheme of the present invention: this employing steel case is as the concrete column of permanent template, its post main body is a reinforced concrete structure, it is characterized in that: the steel case template of post main body and outsourcing is integral by concreting, and steel case template is not forever removed, and it is surrounded by four block plates and is welded.
The thickness of above-mentioned steel plate is 6 millimeters to 30 millimeters.
Above-mentioned steel case stencil sidewalls is offered the ventilative peep hole of 10-30 mm dia at interval.
Above-mentionedly tie is set along steel case template longitudinal separation, the per pass tie by the four sides stirrup with steel case template banding.
Above-mentionedly tie is set along steel case template longitudinal separation, the per pass tie by the four sides stirrup with steel case template banding.
Every stirrup of above-mentioned tie connects one by two parallel channel-section steels that connect side by side with connecting plate.
Solid to straining between symmetrical two stirrups of above-mentioned tie by through-wall bolt, or wear bolton in the bight of adjacent two stirrups.
A kind of job practices that adopts the steel case as the concrete column of permanent template is characterized in that making step is:
(1), merogenesis makes steel case template, with three steel plate supports support, is welded into the U-shaped casing;
(2), welded cover plate, form the column steel case template of a joint rectangular cross section;
(3), side box wall welds fixing steel plate in advance outside steel case template two joint butt ends;
(4), tie is set, along steel case template longitudinal separation the per pass tie by the four sides stirrup with steel case template banding;
(5), offer the ventilative peep hole of 10-20 mm dia at interval in steel case stencil sidewalls;
(6), with the colligation of first segment reinforcing cage to first segment steel case template height, first segment steel case template is sleeved on outside the reinforcing cage colligation second joint reinforcing cage;
(7), the second joint steel case template suit is in place, and weld at joint with first segment steel case template, connect the fixing steel plate of joint temporarily, assembling reinforcement cage to the three joint steel case template height, by that analogy;
(8), cut round hole plate at one meter to two meters of distance steel case template root, the blanking conduit of downward-sloping 45-60 ° of welding pumping of concrete in hole, this blanking conduit is communicated with elephant trunk through non-return pipe and bend pipe;
(9), in steel case template pumping of concrete, one-time-concreting, concrete be the jacking self-compaction from bottom to top;
(10), the round hole plate repair welding under will cutting returns the hole of steel case template, removes fixing steel plate and tie.
The concrete of above-mentioned pumping is a flowing concrete, and the slump is controlled to be 250 ± 10mm, and concrete is not more than 20mm from going out machine to the slump-loss in building during this period of time.
Add expansion agent and flyash in the above-mentioned flowing concrete, limited expansion rate is controlled at 28 days 2-6/10
4
Beneficial effect: the present invention is easy to make quick, can the reduction of erection time, simplify construction sequence, and guarantee workmanship.The present invention is applicable to rectangular section column in the construction work or tiltedly turns round the construction of post.
(4) description of drawings
Fig. 1 is the structural representation of cross section of the present invention;
Fig. 2 is the structural representation of steel case template embodiment;
Fig. 3 is the plan structure schematic diagram of tie embodiment;
Fig. 4 is the side-looking structural representation of tie embodiment;
Fig. 5 is the schematic diagram of fluid concrete from bottom to top.
Among the figure: 1-steel case template, 1 '-the second joint steel case template, 2-reinforcing cage, 3-concrete, 4-tie, 41-stirrup, 42-connecting plate, 43-through-wall bolt, 5-fixing steel plate, 6-blanking conduit, 7-non-return pipe, 8-bend pipe, 9-elephant trunk, the ventilative peep hole of 10-.
(5), the specific embodiment
Referring to Fig. 1, this employing steel case of the present invention is as the concrete column of permanent template, and its post main body is a reinforced concrete structure, and the steel case template 1 of post main body and outsourcing is built by reinforcing cage 2 and concrete 3 and is integral.Steel case template 1 is surrounded by four block plates and is welded.The thickness of above-mentioned steel plate is 10 millimeters to 30 millimeters any thickness.
Referring to Fig. 2, more closely knit for guaranteeing that concrete pouring gets, at about 2 meters ventilative peep holes 10 of offering 20 mm dias in interval on the sidewall of steel case template, be convenient to observe the cast situation, can guarantee workmanship.For guaranteeing the size constancy shape of pillar, tie 4 is set along steel case template longitudinal separation.Convenient for lifting, locating, side box wall welds fixing steel plate 5 in advance outside steel case template two joint butt ends, and this location-plate plays the hanger effect when lifting, play the role of positioning when docking.Be welding at joint between the steel case template 1 and the second joint steel case template 1 '.
Referring to Fig. 3, Fig. 4, the per pass tie by the four sides stirrup with steel case template banding.Every stirrup of above-mentioned tie connects one by two parallel channel-section steels that connect side by side with connecting plate.Solid to straining between symmetrical two stirrups of above-mentioned tie by through-wall bolt, or wear bolton in the bight of adjacent two stirrups.
The present invention adopts the job practices of steel case as the Rectangular Concrete post of permanent template, the steps include:
(1), merogenesis makes steel case template, with three steel plate supports support, is welded into the U-shaped casing.
(2), welded cover plate, form the column steel case template 1 of a joint rectangular cross section.
(3), side box wall welds fixing steel plate 5 in advance outside steel case template two joint butt ends.
(4), tie 4 is set, along steel case template longitudinal separation the per pass tie by the four sides stirrup with steel case template banding; Every stirrup of above-mentioned tie 4 is connected as one by two parallel channel-section steel 41 usefulness connecting plates 42 that connect side by side.Solid between symmetrical two stirrups of above-mentioned tie by 43 pairs of tensions of through-wall bolt, or wear bolton in the bight of adjacent two stirrups.
(5), offer the ventilative peep hole of 10-20 mm dia at interval in steel case stencil sidewalls.
(6), with the colligation of first segment reinforcing cage to first segment steel case template height, first segment steel case template is sleeved on outside the reinforcing cage colligation second joint reinforcing cage.
(7), the second joint steel case template, 1 ' suit is in place, and weld at joint with first segment steel case template, connect the fixing steel plate 5 of joint temporarily, assembling reinforcement cage to the three joint steel case template height, by that analogy.
(8), referring to Fig. 5, cut round hole plate at one meter to two meters of distance steel case template root, in hole downward-sloping 45-60 ° the welding pumping of concrete blanking conduit 6, this blanking conduit is communicated with elephant trunk 9 through non-return pipe 7 and bend pipe 8.
(9), in steel case template pumping of concrete, one-time-concreting, concrete be the jacking self-compaction from bottom to top; The concrete of above-mentioned pumping is the self-compaction flowing concrete, and intensity is C45, and the slump is controlled to be 250 ± 10mm, and concrete is not more than 20mm from going out machine to the slump-loss in building during this period of time, and concrete not stratified, do not emanate.Can add expansion agent and flyash in the above-mentioned flowing concrete, limited expansion rate is controlled at 28 days 2-6/10
4
(10), the round hole plate repair welding under will cutting returns the hole of steel case template, removes fixing steel plate and tie.
Claims (7)
1. concrete column that adopts the steel case as permanent template, its post main body is a reinforced concrete structure, it is characterized in that: the steel case template of post main body and outsourcing is integral by concreting, and steel case template is not forever removed, and it is surrounded by four block plates and is welded;
Along steel case template longitudinal separation tie is set, the per pass tie by the four sides stirrup with steel case template banding; Every stirrup of tie connects one by two parallel channel-section steels that connect side by side with connecting plate.
2. employing steel case according to claim 1 is characterized in that as the concrete column of permanent template: the thickness of above-mentioned steel plate is 6 millimeters to 30 millimeters.
3. employing steel case according to claim 1 is characterized in that as the concrete column of permanent template: above-mentioned steel case stencil sidewalls is offered the ventilative peep hole of 10-30 mm dia at interval.
4. employing steel case according to claim 1 is characterized in that as the preparation method of the concrete column of permanent template: solid to straining between symmetrical two stirrups of above-mentioned tie by through-wall bolt, or wear bolton in the bight of adjacent two stirrups.
According to claim 1 or 3 described employing steel casees as the job practices of the concrete column of permanent template, it is characterized in that making step is:
(1), merogenesis makes steel case template, with three steel plate supports support, is welded into the U-shaped casing;
(2), welded cover plate, form the column steel case template of a joint rectangular cross section;
(3), side box wall welds fixing steel plate in advance outside steel case template two joint butt ends;
(4), tie is set, along steel case template longitudinal separation the per pass tie by the four sides stirrup with steel case template banding;
(5), offer the ventilative peep hole of 10-20 mm dia at interval in steel case stencil sidewalls;
(6), with the colligation of first segment reinforcing cage to first segment steel case template height, first segment steel case template is sleeved on outside the reinforcing cage colligation second joint reinforcing cage;
(7), the second joint steel case template suit is in place, and weld at joint with first segment steel case template, connect the fixing steel plate of joint temporarily, assembling reinforcement cage to the three joint steel case template height, by that analogy;
(8), cut round hole plate at one meter to two meters of distance steel case template root, the blanking conduit of downward-sloping 45-60 ° of welding pumping of concrete in hole, this blanking conduit is communicated with elephant trunk through non-return pipe and bend pipe;
(9), in steel case template pumping of concrete, one-time-concreting, concrete be the jacking self-compaction from bottom to top;
(10), the round hole plate repair welding under will cutting returns the hole of steel case template, removes fixing steel plate and tie.
6. employing steel case according to claim 5 is as the job practices of the concrete column of permanent template, it is characterized in that: the concrete of above-mentioned pumping is a flowing concrete, the slump is controlled to be 250 ± 10mm, and concrete is not more than 20mm from going out machine to the slump-loss in building during this period of time.
7. employing steel case according to claim 6 is characterized in that as the job practices of the concrete column of permanent template: add expansion agent and flyash in the above-mentioned flowing concrete, limited expansion rate is controlled at 28 days 2-6/10
4
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005102007082A CN100334308C (en) | 2005-11-17 | 2005-11-17 | Concrete column employing steel box as permanent template and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005102007082A CN100334308C (en) | 2005-11-17 | 2005-11-17 | Concrete column employing steel box as permanent template and construction method thereof |
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| CN1769619A CN1769619A (en) | 2006-05-10 |
| CN100334308C true CN100334308C (en) | 2007-08-29 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102312578B (en) * | 2011-07-08 | 2014-08-06 | 付强 | Integral vibration-free pouring and constructing method |
| CN102267177B (en) * | 2011-08-30 | 2013-01-09 | 四川国统混凝土制品有限公司 | Self-compacting concrete moulding method for PCCP (prestressed concrete cylinder pipe) cores |
| CN102535746A (en) * | 2011-12-30 | 2012-07-04 | 宁波建工股份有限公司 | Concrete-filled steel tube column and casting method thereof |
| CN107313554A (en) * | 2017-08-10 | 2017-11-03 | 滨州学院 | A kind of reinforced column constructing device of free removal template |
| CN109707104B (en) * | 2018-12-27 | 2023-10-27 | 中南大学 | Concrete-filled steel tube casting body with tie bars and construction method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04357224A (en) * | 1991-01-18 | 1992-12-10 | Ohbayashi Corp | Precast concrete block formwork |
| JPH0533491A (en) * | 1991-07-29 | 1993-02-09 | Ohbayashi Corp | Pc column form |
| CN2148123Y (en) * | 1993-01-12 | 1993-12-01 | 北京市建筑工程研究所 | Permanent column shuttering with finished surface |
| CN2232953Y (en) * | 1995-11-24 | 1996-08-14 | 梁育雄 | Permanent combination building section mould |
| GB2317192A (en) * | 1996-09-04 | 1998-03-18 | Dinsdale Lawrence | Permanent formwork |
| DE29803155U1 (en) * | 1998-02-23 | 1998-04-23 | Betonwerk Theodor Pieper Gmbh | Formwork aid |
| WO2003102317A1 (en) * | 2002-06-03 | 2003-12-11 | Katsuki Takiguchi | Ferrocement permanent formwork |
-
2005
- 2005-11-17 CN CNB2005102007082A patent/CN100334308C/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04357224A (en) * | 1991-01-18 | 1992-12-10 | Ohbayashi Corp | Precast concrete block formwork |
| JPH0533491A (en) * | 1991-07-29 | 1993-02-09 | Ohbayashi Corp | Pc column form |
| CN2148123Y (en) * | 1993-01-12 | 1993-12-01 | 北京市建筑工程研究所 | Permanent column shuttering with finished surface |
| CN2232953Y (en) * | 1995-11-24 | 1996-08-14 | 梁育雄 | Permanent combination building section mould |
| GB2317192A (en) * | 1996-09-04 | 1998-03-18 | Dinsdale Lawrence | Permanent formwork |
| DE29803155U1 (en) * | 1998-02-23 | 1998-04-23 | Betonwerk Theodor Pieper Gmbh | Formwork aid |
| WO2003102317A1 (en) * | 2002-06-03 | 2003-12-11 | Katsuki Takiguchi | Ferrocement permanent formwork |
Non-Patent Citations (1)
| Title |
|---|
| 永久性轻型钢模板 辛一，建筑技术开发，第4期 1998 * |
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Application publication date: 20060510 Assignee: BEIJING URBAN CONSTRUCTION DESIGN & DEVELOPMENT GROUP CO., LIMITED Assignor: Beijing City Building Group Co., Ltd. Contract record no.: 2014990000265 Denomination of invention: Concrete column employing steel box as permanent template and construction method thereof Granted publication date: 20070829 License type: Common License Record date: 20140505 |
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