CN114482537B - Quick die removing method for large-section concrete column steel template - Google Patents
Quick die removing method for large-section concrete column steel template Download PDFInfo
- Publication number
- CN114482537B CN114482537B CN202111359651.6A CN202111359651A CN114482537B CN 114482537 B CN114482537 B CN 114482537B CN 202111359651 A CN202111359651 A CN 202111359651A CN 114482537 B CN114482537 B CN 114482537B
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- China
- Prior art keywords
- template
- column
- mould
- dismantling
- jacks
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- 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.)
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 36
- 239000010959 steel Substances 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000010276 construction Methods 0.000 claims abstract description 9
- 239000002184 metal Substances 0.000 claims abstract description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000012797 qualification Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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 rapid die stripping method for a large-section concrete column steel template; the method comprises the following steps of 1, dismantling a column die butt-joint bolt; step 2, dismantling a U-shaped template at one side; step 3, removing the column foot template; and 4, dismantling the other side template, wherein a reaction frame is constructed by adopting a metal structure before dismantling, the reaction frame penetrates into the bottom of the concrete column, the back of the reaction frame is clung to the concrete surface, two jacks are symmetrically arranged on two sides during dismantling, the bottoms of the jacks are arranged at reaction force points of the sitting device, the template is ejected through jacking operation of the jacks, and simultaneously the template is dismantled and lifted by matching with a crane.
Description
Technical Field
The invention relates to the technical field of concrete pouring construction, in particular to a rapid die stripping method for a large-section concrete column steel template.
Background
A concrete column has a cross-sectional dimension of 1200mm multiplied by 1200mm, a column height of 9.9m and a column top of a column cap structure. The template is formed by splicing two U-shaped large steel films by bolts, the bottom of the steel die is a detachable column foot die, and the die removing difficulty is high. In the process of removing the form, when the steel form bolt is removed, traditional form removal technology adopts the hammer to assist the crow bar to pry open one side U-shaped steel form, the crane cooperation is removed one side steel form earlier, the opposite side steel form adopts the hammer to strike the steel form, crane complex mode is removed, this kind of big steel form is removed mode operation accuracy and is difficult to control, operating personnel intensity of labour is big, improper operation extremely easily causes concrete column surface damage, influence column appearance quality, the hammer strikes the steel form simultaneously, cause the steel form to warp easily, and then the concrete runs thick liquid, leaks thick liquid at the in-process of pouring, to the higher engineering of concrete surface requirement, its acceptance qualification rate is difficult to guarantee, the construction process also has certain potential safety hazard simultaneously.
Disclosure of Invention
The invention aims to overcome the defects and provides a rapid die stripping method for a large-section concrete column steel template.
In order to achieve the above object, the present invention is achieved by:
a method for quickly removing mould of large-section concrete column steel mould plate includes
Step 1, dismantling a column die butt-joint bolt: symmetrically removing nuts one by one from the column top downwards by two persons, reserving two rows of nuts on the column base, and removing the crane steel wire rope after the crane steel wire rope is straightened in an unstressed state after the column top hooks are installed;
step 2, dismantling a U-shaped template at one side: because the steel mould is tightly adhered to the concrete and the mould is difficult to be released in a mould closing state, steel prismatic bars are arranged on two sides of the U-shaped steel mould, the jacks take the steel prismatic bars as acting points, acting forces are symmetrically applied on two sides of the mould to jack up and separate one side of the mould, the acting forces applied by the jacks on two sides should be kept uniform and slow so as to prevent the damage of the concrete column caused by uneven stress or too high ejection speed of the mould, and a crane is matched to hoist the mould away in the ejection process of the side mould;
step 3, removing the column base template: the bottom of the column foot is provided with a small column foot template, and the small column foot template is removed in advance to ensure the construction operation surface of the side mold removal;
step 4, removing the other side template: in order to facilitate the dismantling of the U-shaped template at the other side, a reaction frame is processed by adopting a metal structure before the dismantling, the reaction frame penetrates into the bottom of a concrete column, the back of the reaction frame is clung to the concrete surface, when the dismantling is performed, two jacks are symmetrically placed at two sides, the bottoms of the jacks are placed at reaction force points of actuators, the template is ejected through the jacking operation of the jacks, and meanwhile, the template is dismantled and lifted away by being matched with a crane; in the construction process, the jacks at two sides should slowly jack at a constant speed and keep the same jacking speed, and meanwhile, the stress is consistent.
The rapid demolding method is simple in operation process, time-saving and labor-saving, and low in safety risk; the damage of the edges and corners of the concrete column can be well avoided, the surface damage rate of the concrete column is low, and the qualification rate is high.
Drawings
Fig. 1 is a schematic diagram of a bolt removal process.
Fig. 2 is a schematic diagram of a process of removing a form on one side of a column.
Fig. 3 is a top view of the lifting process.
FIG. 4 is a schematic illustration of the process of lifting off the U-shaped die on one side of the column.
Fig. 5 is a schematic view of the removal of the toe bed die.
Fig. 6 is a schematic diagram of the process of removing the form on the other side 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 process of lifting the U-shaped mold from the other side of the column.
Detailed Description
The invention is further illustrated by the following specific examples.
A method for quickly removing mould of large-section concrete column steel mould plate includes
As shown in fig. 1, step 1, removing the column die butt bolts: symmetrically removing nuts one by one from the column top downwards by two persons, reserving two rows of nuts on the column base, and removing the crane steel wire rope after the crane steel wire rope is straightened in an unstressed state after the column top hooks are installed;
step 2, as shown in fig. 2 to fig. 4, dismantling a side U-shaped template: because the steel mould is tightly adhered to the concrete and the mould is difficult to be released in a mould closing state, steel prismatic bars are arranged on two sides of the U-shaped steel mould, the jacks take the steel prismatic bars as acting points, acting forces are symmetrically applied on two sides of the mould to jack up and separate one side of the mould, the acting forces applied by the jacks on two sides should be kept uniform and slow so as to prevent the damage of the concrete column caused by uneven stress or too high ejection speed of the mould, and a crane is matched to hoist the mould away in the ejection process of the side mould;
as shown in fig. 5, step 3, removing the column shoe template: the bottom of the column foot is provided with a small column foot template, and the small column foot template is removed in advance to ensure the construction operation surface of the side mold removal;
step 4, as shown in fig. 6 to 8, removing the other side template: in order to facilitate the dismantling of the U-shaped template at the other side, a reaction frame is processed by adopting a metal structure before the dismantling, the reaction frame penetrates into the bottom of a concrete column, the back of the reaction frame is clung to the concrete surface, when the dismantling is performed, two jacks are symmetrically placed at two sides, the bottoms of the jacks are placed at reaction force points of actuators, the template is ejected through the jacking operation of the jacks, and meanwhile, the template is dismantled and lifted away by being matched with a crane; in the construction process, the jacks at two sides should slowly jack at a constant speed and keep the same jacking speed, and meanwhile, the stress is consistent.
The rapid demolding method is simple in operation process, time-saving and labor-saving, and low in safety risk; the damage of the edges and corners of the concrete column can be well avoided, the surface damage rate of the concrete column is low, and the qualification rate is high.
Claims (1)
1. A rapid die stripping method for a large-section concrete column steel template is characterized by comprising the following steps: comprising
Step 1, dismantling a column die butt-joint bolt: symmetrically removing nuts one by one from the column top downwards by two persons, reserving two rows of nuts on the column base, and removing the crane steel wire rope after the crane steel wire rope is straightened in an unstressed state after the column top hooks are installed;
step 2, dismantling a U-shaped template at one side: because the steel mould is tightly adhered to the concrete and the mould is difficult to be released in a mould closing state, steel prismatic bars are arranged on two sides of the U-shaped steel mould, the jacks take the steel prismatic bars as acting points, acting forces are symmetrically applied on two sides of the mould to jack up and separate one side of the mould, the acting forces applied by the jacks on two sides should be kept uniform and slow so as to prevent the damage of the concrete column caused by uneven stress or too high ejection speed of the mould, and a crane is matched to hoist the mould away in the ejection process of the side mould;
step 3, removing the column base template: the bottom of the column foot is provided with a small column foot template, and the small column foot template is removed in advance to ensure the construction operation surface of the side mold removal;
step 4, removing the other side template: in order to facilitate the dismantling of the U-shaped template at the other side, a reaction frame is processed by adopting a metal structure before the dismantling, the reaction frame penetrates into the bottom of a concrete column, the back of the reaction frame is clung to the concrete surface, when the dismantling is performed, two jacks are symmetrically placed at two sides, the bottoms of the jacks are placed at reaction force points of actuators, the template is ejected through the jacking operation of the jacks, and meanwhile, the template is dismantled and lifted away by being matched with a crane; in the construction process, the jacks at two sides should slowly jack at a constant speed and keep the same jacking speed, and meanwhile, 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 CN114482537A (en) | 2022-05-13 |
| CN114482537B true 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 |
|---|---|
| CN114482537A (en) | 2022-05-13 |
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