CN114482537A - Rapid form removal method for steel template of large-section concrete column - Google Patents
Rapid form removal method for steel template of large-section concrete column Download PDFInfo
- Publication number
- CN114482537A CN114482537A CN202111359651.6A CN202111359651A CN114482537A CN 114482537 A CN114482537 A CN 114482537A CN 202111359651 A CN202111359651 A CN 202111359651A CN 114482537 A CN114482537 A CN 114482537A
- Authority
- CN
- China
- Prior art keywords
- template
- column
- jacks
- dismantling
- concrete
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 33
- 239000010959 steel Substances 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000010276 construction Methods 0.000 claims abstract description 9
- 238000009415 formwork Methods 0.000 claims abstract description 7
- 239000002184 metal Substances 0.000 claims abstract description 4
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 238000012797 qualification Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G19/00—Auxiliary treatment of forms, e.g. dismantling; Cleaning devices
- E04G19/003—Arrangements for stabilising the forms or for moving the forms from one place to another
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G13/00—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills
- E04G13/02—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for columns or like pillars; Special tying or clamping means therefor
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
The invention relates to the technical field of concrete pouring construction, in particular to a method for quickly removing a steel template of a large-section concrete column; the method comprises the following steps of 1, dismantling a column formwork butt bolt; step 2, dismantling a U-shaped template on one side; step 3, dismantling the column base template; and 4, removing the other side template, adopting a metal structure to construct a reaction frame before removal, penetrating the reaction frame into the bottom of the concrete column, enabling the back of the concrete column to be tightly attached to the surface of the concrete, symmetrically placing two jacks at two sides during removal, placing the bottoms of the jacks at reaction points of a sitting device, ejecting the template through jacking operation of the jacks, and simultaneously matching with a crane to remove and lift the template away.
Description
Technical Field
The invention relates to the technical field of concrete pouring construction, in particular to a method for quickly removing a steel template of a large-section concrete column.
Background
A concrete column has a cross-sectional dimension of 1200mm x 1200mm, a column height of 9.9m, and a column cap structure at the top of the column. The template is formed by splicing two U-shaped large steel films by bolts, and the bottom of the steel die is a detachable column foot die which is difficult to detach. In the formwork demolition process, demolish when the steel mould bolt, tradition form removal technology adopts the supplementary pinch bar of hammer to prize open one side U-shaped steel mould, one side steel mould is demolishd earlier in the crane cooperation, the opposite side steel mould adopts the hammer to strike the steel mould, the mode of crane cooperation is demolishd, this kind of big steel mould demolishs the mode operation precision and is difficult to control, operating personnel intensity of labour is big, the operation is improper very easily causes concrete column surface damage, influence post appearance quality, the hammer strikes the steel mould simultaneously, cause the steel form to warp easily, and then the concrete is pouring the in-process and is run thick liquid, leak thick liquid, to the higher engineering of concrete surface requirement, it checks and accepts the qualification rate and is difficult to guarantee, certain potential safety hazard also exists in the simultaneous construction process.
Disclosure of Invention
The invention aims to overcome the defects and provides a method for quickly removing a steel template of a large-section concrete column.
In order to achieve the above object, the present invention is realized by:
a method for quickly removing the steel template of large-cross-section concrete column includes
Step 1, dismantling a column formwork butt bolt: the nuts are symmetrically removed one by one from the top of the column downwards by two persons, two rows of nuts at the column base are reserved, the crane steel wire rope is removed after being straightened in an unstressed state after a hook at the top of the column is installed;
step 2, dismantling a U-shaped template on one side: because the steel die is tightly bonded with concrete and demoulding is difficult in a die closing state, steel prismatic bars are arranged on two sides of the U-shaped steel die, the steel prismatic bars are used as force application points of the jacks, acting forces are symmetrically applied to two sides of the template to push the template on one side open and separate, the acting forces applied by the jacks on the two sides are kept uniform and slow, so that the damage of the concrete column caused by uneven stress of the template or over-high ejection speed is prevented, and the template is lifted away by matching of a crane in the ejection process of the side die;
step 3, dismantling the column base template: the bottom of the column base is provided with a small column base template, and the small column base template is removed in advance to ensure the construction operation surface for side mold removal;
and 4, detaching the other side template: in order to facilitate the dismantling of the U-shaped template on the other side, a metal structure is adopted to construct a reaction frame before the dismantling, the reaction frame penetrates into the bottom of the concrete column, the back of the concrete column is tightly attached to the concrete surface, two jacks are symmetrically arranged on two sides during the dismantling, the bottoms of the jacks are placed at reaction force points of a sitting device, the template is ejected through the jacking operation of the jacks, and the template is dismantled and lifted away by matching with a crane; in the construction process, the jacks at the two sides are pushed at the same speed and the same pushing speed, and the stress is consistent.
The rapid form removal method is simple in operation process, time-saving and labor-saving, and low in safety risk; can avoid concrete column edges and corners to damage better, the concrete column surface breakage rate is low, and the qualification rate is high.
Drawings
Fig. 1 is a schematic view of a bolt removal process.
Fig. 2 is a schematic diagram of a process for removing a formwork on one side of a column.
Fig. 3 is a diagram of the garment during the lifting process.
FIG. 4 is a schematic view of the process of lifting the U-shaped mold off one side of the column.
Fig. 5 is a schematic view of the column shoe bottom mold removed.
Fig. 6 is a schematic view of the process of removing the other side form of the column.
Fig. 7 is a sectional view taken along line B-B in fig. 6.
FIG. 8 is a schematic view of the U-shaped mold on the other side of the column being lifted away.
Detailed Description
The invention is further illustrated by the following specific examples.
A method for quickly removing the steel template of large-cross-section concrete column includes
As shown in fig. 1, step 1, removing the column formwork butt bolts: the nuts are symmetrically removed one by one from the top of the column downwards by two persons, two rows of nuts at the column base are reserved, the crane steel wire rope is removed after being straightened in an unstressed state after a hook at the top of the column is installed;
as shown in fig. 2 to 4, step 2, removing the U-shaped template on one side: because the steel die is tightly bonded with concrete and demoulding is difficult in a die closing state, steel prismatic bars are arranged on two sides of the U-shaped steel die, the steel prismatic bars are used as force application points of the jacks, acting forces are symmetrically applied to two sides of the template to push the template on one side open and separate, the acting forces applied by the jacks on the two sides are kept uniform and slow, so that the damage of the concrete column caused by uneven stress of the template or over-high ejection speed is prevented, and the template is lifted away by matching of a crane in the ejection process of the side die;
as shown in fig. 5, step 3, removing the column base template: the bottom of the column base is provided with a small column base template, and the small column base template is removed in advance to ensure the construction operation surface for side mold removal;
as shown in fig. 6 to 8, step 4, detaching the other side template: in order to facilitate the dismantling of the U-shaped template on the other side, a metal structure is adopted to construct a reaction frame before the dismantling, the reaction frame penetrates into the bottom of the concrete column, the back of the concrete column is tightly attached to the concrete surface, two jacks are symmetrically arranged on two sides during the dismantling, the bottoms of the jacks are placed at reaction force points of a sitting device, the template is ejected through the jacking operation of the jacks, and the template is dismantled and lifted away by matching with a crane; in the construction process, the jacks at the two sides are pushed at the same speed and the same pushing speed, and the stress is consistent.
The rapid form removal method is simple in operation process, time-saving and labor-saving, and low in safety risk; can avoid concrete column edges and corners to damage better, the concrete column surface breakage rate is low, and the qualification rate is high.
Claims (1)
1. A method for quickly removing a steel template of a large-section concrete column is characterized by comprising the following steps: comprises that
Step 1, dismantling a column formwork butt bolt: the nuts are symmetrically removed one by one from the top of the column downwards by two persons, two rows of nuts at the column base are reserved, the crane steel wire rope is removed after being straightened in an unstressed state after a hook at the top of the column is installed;
step 2, dismantling a U-shaped template on one side: because the steel die is tightly bonded with concrete and demoulding is difficult in a die closing state, steel prismatic bars are arranged on two sides of the U-shaped steel die, the steel prismatic bars are used as force application points of the jacks, acting forces are symmetrically applied to two sides of the template to push the template on one side open and separate, the acting forces applied by the jacks on the two sides are kept uniform and slow, so that the damage of the concrete column caused by uneven stress of the template or over-high ejection speed is prevented, and the template is lifted away by matching of a crane in the ejection process of the side die;
step 3, dismantling the column base template: the bottom of the column base is provided with a small column base template, and the small column base template is removed in advance to ensure the construction operation surface for side mold removal;
and 4, detaching the other side template: in order to facilitate the dismantling of the U-shaped template on the other side, a metal structure is adopted to construct a reaction frame before the dismantling, the reaction frame penetrates into the bottom of the concrete column, the back of the concrete column is tightly attached to the concrete surface, two jacks are symmetrically arranged on two sides during the dismantling, the bottoms of the jacks are placed at reaction force points of a sitting device, the template is ejected through the jacking operation of the jacks, and the template is dismantled and lifted away by matching with a crane; in the construction process, the jacks at the two sides are pushed at the same speed and the same pushing speed, and the stress is consistent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111359651.6A CN114482537B (en) | 2021-11-17 | 2021-11-17 | Quick die removing method for large-section concrete column steel template |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111359651.6A CN114482537B (en) | 2021-11-17 | 2021-11-17 | Quick die removing method for large-section concrete column steel template |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114482537A true CN114482537A (en) | 2022-05-13 |
| CN114482537B CN114482537B (en) | 2024-01-16 |
Family
ID=81492752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111359651.6A Active CN114482537B (en) | 2021-11-17 | 2021-11-17 | Quick die removing method for large-section concrete column steel template |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114482537B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201794306U (en) * | 2010-09-28 | 2011-04-13 | 山东淄博环宇桥梁模板有限公司 | Device for stripping template |
| CN205012654U (en) * | 2015-08-17 | 2016-02-03 | 中国建筑股份有限公司 | Shedder and take shedder's template |
| CN107116674A (en) * | 2017-06-30 | 2017-09-01 | 中交第航务工程局有限公司 | A kind of jack form removal method of T-shaped beam monoblock type template |
-
2021
- 2021-11-17 CN CN202111359651.6A patent/CN114482537B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201794306U (en) * | 2010-09-28 | 2011-04-13 | 山东淄博环宇桥梁模板有限公司 | Device for stripping template |
| CN205012654U (en) * | 2015-08-17 | 2016-02-03 | 中国建筑股份有限公司 | Shedder and take shedder's template |
| CN107116674A (en) * | 2017-06-30 | 2017-09-01 | 中交第航务工程局有限公司 | A kind of jack form removal method of T-shaped beam monoblock type template |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114482537B (en) | 2024-01-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111360978A (en) | Prefabricated box girder end mould that can fix a position fast and demolish | |
| JPH0919758A (en) | Device for removing sand on cast product after taking off molding flask | |
| CN114482537A (en) | Rapid form removal method for steel template of large-section concrete column | |
| CN103722153B (en) | Continuous resin sand mold low-pressure die casting plant | |
| CN201769273U (en) | Automatic forming die for pouring gypsum block | |
| CN108952161B (en) | Assembled rapid demolding device for large steel mold and construction method of assembled rapid demolding device | |
| CN213440251U (en) | Prefabricated template of 30t twisted Chinese character 'wang' block | |
| CN205529917U (en) | A support fixing device that is used for high mound, U type abutment form setting | |
| CN205254047U (en) | Automatic sand filling device | |
| CN210238297U (en) | Detaching device for bent cap support | |
| CN106426703A (en) | Double-piece compounding reinforcing rib comb foundation forming device | |
| CN111779285A (en) | Pre-tensioning method prestressed tendon quick-pulling-releasing cutting-free construction method and device | |
| CN219078997U (en) | Pavement baffle demoulding device | |
| CN220661250U (en) | Prefabricated T-shaped beam lower water hole die withdrawing device | |
| CN201056019Y (en) | Large-scale stephanoporate border stone mold | |
| CN216042672U (en) | Lever type wall formwork dismantling device | |
| CN217802396U (en) | Board separator | |
| CN214266095U (en) | Intelligent trapezoidal sleeper production line | |
| CN214185204U (en) | Auxiliary demoulding device of high-temperature pouring mould | |
| CN114941426B (en) | Single-side wall template trolley construction method with mechanical demoulding device | |
| CN211386851U (en) | Casting mold | |
| CN217861872U (en) | Brick making mold equipment | |
| CN216096304U (en) | Casting rod anti-falling frame for low-pressure vacuum semi-continuous casting system | |
| CN213260074U (en) | Positioning and mold locking device for press assembly | |
| CN217915971U (en) | Engineering test stripper |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |