CN116378432A - High-level sliding construction and track setting method for flat net rack - Google Patents
High-level sliding construction and track setting method for flat net rack Download PDFInfo
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- CN116378432A CN116378432A CN202310581448.6A CN202310581448A CN116378432A CN 116378432 A CN116378432 A CN 116378432A CN 202310581448 A CN202310581448 A CN 202310581448A CN 116378432 A CN116378432 A CN 116378432A
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- sliding
- net rack
- flat net
- shear wall
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- 238000010276 construction Methods 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 37
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 18
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 16
- 239000010959 steel Substances 0.000 claims abstract description 16
- 239000004567 concrete Substances 0.000 claims abstract description 15
- 238000005266 casting Methods 0.000 claims abstract description 7
- 230000007246 mechanism Effects 0.000 claims description 12
- 235000014121 butter Nutrition 0.000 claims description 5
- 230000009194 climbing Effects 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000001186 cumulative effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002427 irreversible effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011417 postcuring Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- 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
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
- E04G21/16—Tools or apparatus
- E04G21/162—Handles to carry construction blocks
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/19—Three-dimensional framework structures
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
The invention relates to the technical field of steel structures, and discloses a method for high-order sliding construction and track setting of a flat net rack, which comprises the following steps: arranging high bracket below the design position of the grid frame before casting the concrete shear wall; the casting of the shear wall is completed, and the reinforced concrete shear wall is formed after the concrete strength reaches the requirement; a sliding rail is arranged on the high bracket; a plurality of flat net rack sliding units are arranged on the full scaffold built at the initial stage of the sliding track; connecting a flat net rack sliding unit which slides to a specified position to a reinforced concrete shear wall; removing the high bracket and the sliding rail; the invention provides convenience for the track setting of the sliding construction in a mode of embedding the temporary high-position bracket, and the sliding track plays roles of bearing the vertical load of the grid and providing the counter-force point of the climbing frame, so that the construction can be smoothly carried out, the accurate operation in the adjustment is ensured, the generation of internal stress of the flat grid is avoided, and the overall strength of the flat grid is higher.
Description
Technical Field
The invention belongs to the technical field of steel structures, and particularly relates to a flat net rack high-position sliding construction and track setting method.
Background
At present, the garbage pool of a large garbage incineration plant mostly has the characteristics of high structure height and large roof span due to the arrangement requirements of the process and the equipment, and the requirements on the lateral resistance of the structure are not small. Meanwhile, as corrosive liquid is easy to generate in the garbage stacking and treating process, the structural design must consider the corrosion resistance and durability of the materials. In order to meet the use requirements, a reinforced concrete shear wall structure is generally adopted as a civil structure at the lower part of a garbage pool of a large garbage incineration plant, namely, the reinforced concrete shear wall is used as a garbage pool wall so as to resist the side force and corrosiveness caused by garbage stacking. The upper part of the garbage pool adopts a steel net frame roof with light dead weight and high rigidity so as to adapt to the characteristic of large span of the garbage pool.
The common grid structure installation method mainly comprises a high-altitude bulk method, an integral pre-lifting method, an integral hoisting method and a high-altitude sliding method. Considering the complexity of the civil engineering equipment at the lower part of the garbage pool and the control of the installation precision of the net rack, a construction method of in-situ bulk-accumulated sliding at two ends is generally adopted. However, when the large steel net frame roof truss of the garbage pool is positioned between pool walls on two sides of the garbage pool, the sliding rail is installed without any place, so that the installation of the steel net frame becomes a difficult problem again.
Disclosure of Invention
The invention aims to provide a high-level sliding construction and track setting method for a flat net rack, which provides convenience for the track setting of the sliding construction in a mode of embedding temporary high brackets, and the sliding track plays roles of bearing the vertical load of the net rack and providing a climbing frame counter-force point, so that the construction can be smoothly carried out, the lifting requirement of lifting equipment is effectively reduced by the accumulated sliding construction method, irreversible plastic deformation generated by unit blocks of a sliding unit of the flat net rack during lifting is avoided, and the construction safety is improved.
The technical scheme adopted by the invention is as follows: a flat net rack high-level sliding construction and track setting method comprises the following steps:
step one: arranging high bracket below the design position of the grid frame before casting the concrete shear wall;
step two: the casting of the shear wall is completed, and the reinforced concrete shear wall is formed after the concrete strength reaches the requirement;
step three: a sliding rail is arranged on the high bracket, and anti-offset positioning mechanisms are arranged on two sides of the sliding rail;
step four: a plurality of flat net rack sliding units are arranged on the full scaffold built at the initial stage of the sliding track;
step five: connecting a flat net rack sliding unit which slides to a specified position to a reinforced concrete shear wall;
step six: and removing the high bracket and the sliding rail.
Optionally, the method is suitable for steel structure roof projects with the lower structure being a concrete shear wall and the upper net frame being positioned between the shear walls at two sides.
Optionally, the high bracket is connected with the reinforced concrete shear wall in a pre-buried mode.
Optionally, the full scaffold is built at the initial stage of the sliding track to form a net rack assembly operation platform, and the flat net rack sliding unit is built at the top of the net rack assembly operation platform.
Optionally, the high bracket may be an H-beam, and the high bracket is welded or bolted to an embedded part in the reinforced concrete shear wall.
Optionally, the sliding rail can adopt a hot-rolled steel beam, and the sliding rail is fixedly connected with the sliding beam or the high bracket.
Optionally, the connection part of the sliding rail adopts a special fastener for the rail to realize firm connection.
Optionally, butter is smeared on the upper surface of the sliding rail.
Optionally, positioning mechanism includes setting element, retaining member and screw, the screw is installed in the bottom of high-order bracket and is run through the setting element, and the setting element supports in the both sides of sliding track this moment, and the screw is locked fixedly through the retaining member at setting element top.
The invention has the technical effects that:
(1) The mode through pre-buried interim high-order bracket of this scheme provides convenience for the track setting of slip construction, and the track of sliding plays the effect of bearing the vertical load of rack and providing climbing frame counter-force point for the construction can go on smoothly, and through ingenious mode that sets up pre-buried bracket, has solved the high-order rack that is located between the concrete shear force wall and has slipped the problem that the track is difficult to set up when installing, has simple and easy, low cost, construction advantage convenient.
(2) Adopt the retaining member to carry out firm in connection with the screw, final positioning mechanism can be with the orbital location locking of sliding for under the work of the dull and stereotyped rack unit of sliding of operation, the orbital position of sliding of settlement can not produce the displacement, strengthens the orbital skew that prevents of sliding, and then guarantees to go on at the work accuracy of adjustment, avoids dull and stereotyped rack to produce the internal stress, makes dull and stereotyped rack's bulk strength higher, avoids the incident emergence of later stage.
(3) The accumulated slipping construction scheme is smoothly carried out, so that the full-hall scaffold only needs to be built in a slipping initial area to provide an assembly platform, the full-hall scaffold is prevented from being paved in the whole area, space is vacated for other construction facilities, and construction cost and time are greatly saved.
(4) The accumulated sliding construction method effectively reduces the lifting requirement of lifting equipment, avoids irreversible plastic deformation generated by the unit body blocks of the flat net rack sliding units during lifting, and improves the construction safety.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, it will be apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art
FIG. 1 is a front view of the high-level cumulative slip construction process of the flat net rack of the present invention;
FIG. 2 is a cross-sectional view of the high-level cumulative slip construction process of the flat net rack of the present invention;
fig. 3 is a diagram showing the arrangement of the sliding track in the high-level sliding construction and track arrangement method of the flat net rack.
Fig. 4 is a schematic structural diagram of a positioning mechanism in a flat net rack high-level sliding construction and track setting method of the invention.
In the drawings, the list of components represented by the various numbers is as follows:
1. reinforced concrete shear wall; 2. high bracket; 3. a slip rail; 4. a flat net rack sliding unit; 5. a positioning mechanism; 51. a positioning piece; 52. a locking member; 53. and (5) a screw.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-4, the invention provides a method for high-level sliding construction and track setting of a flat net rack, which comprises the following steps:
step one: embedding high bracket 2 below the design position of the grid frame before casting the concrete shear wall; the high bracket 2 can adopt an H-shaped steel beam, the high bracket 2 is welded or connected with an embedded part in the reinforced concrete shear wall 1 through bolts, the high bracket 2 after being embedded is connected with another embedded part, the installation firmness of the high bracket 2 is ensured, and the high bracket 2 is preferably connected with the embedded part in a welding or bolt mode;
step two: the reinforced concrete shear wall 1 is formed after pouring of the reinforced concrete shear wall 1 is completed and the concrete strength reaches the requirement, the concrete strength at least reaches 70% -90% of the design strength, according to strict post-curing, the concrete strength can reach about 70% of the design strength in theory, the concrete strength can reach more than 90% of the design strength in 28 days, and then the concrete with different strengths is selected for further processing according to specific conditions;
step three: the high bracket 2 is provided with the sliding rail 3, the two sides of the sliding rail are provided with anti-offset positioning mechanisms, the cross section of the sliding rail 3 is in an I shape, and the sliding rail has better supporting strength and pressure resistance; the sliding rail 3 can adopt a hot-rolled steel beam, the sliding rail 3 is fixedly connected with the sliding beam or the high bracket 2, meanwhile, the joint of the sliding rail 3 adopts a special fastening piece for realizing firm connection, and the special fastening piece for the rail can adopt a steel rail fastener for realizing connection;
the locating mechanism comprises locating pieces, locking pieces and screws, the screws are arranged at the bottoms of the high-position brackets and penetrate through the locating pieces, the locating pieces are supported on two sides of a sliding rail, the screws are locked and fixed through the locking pieces at the tops of the locating pieces, when the locating mechanism is arranged, the sliding rail 3 is firstly arranged at a proper position, the locating pieces 51 in the locating mechanism 5 are tightly supported on two sides of the sliding rail 3, locating treatment of the sliding rail 3 is achieved, at the moment, the locating fixing of the locating pieces 51 is achieved according to the positions of the locating pieces 51, which are located at the bottoms of the high-position brackets 2 and penetrate through the mounting holes of the locating pieces 51, the screws 53 are connected firmly by the locking pieces 52, the locating mechanism 5 can lock the sliding rail 3 in a locating mode finally, the set sliding rail 3 cannot generate displacement under the operation of the flat net rack unit 4, the anti-offset limiting of the sliding rail 3 is further guaranteed to be strengthened, the flat net rack is prevented from generating internal stress, and the whole strength of the flat net rack is prevented from being high, and later safety accidents are avoided.
Step four: the full scaffold is built at the initial stage of the sliding rail 3 to serve as a net rack assembling operation platform, and the flat net rack sliding units 4 are assembled on the net rack assembling operation platform, so that accumulated sliding construction is realized, and therefore, a plurality of flat net rack sliding units 4 are carried on the top of the sliding rail 3;
step five: the flat net rack sliding unit 4 sliding to a specified position is connected to the reinforced concrete shear wall 1;
step six: the high-position bracket 2 and the sliding rail 3 are removed, so that the high-position sliding construction of the flat plate net frame can be realized.
When the high-level sliding construction of the flat net rack and the track setting method are implemented, the bottom plate is coated with butter before the sliding support is installed in place, and the upper surface of the sliding track 3 is coated with butter; to ensure reliable operation of the crawler clamp, the two sides of the sliding rail 3 are clean and tidy without smearing butter to avoid slipping of the crawler "
As a further improvement of the invention, the reinforced concrete shear wall 1 is internally provided with short steel bars with the diameter phi 25 and the length 300mm, the high bracket 2 is inserted into the short steel bars, the connection parts of the adjacent short steel bars are arranged in a staggered way, and the longitudinal and transverse scissor supports are arranged to meet the current standard requirements. The load of the upper sliding rail 3 and the flat net rack sliding unit 4 and the dead weight of the full-spread high bracket 2 are considered, and the bearing capacity, the rigidity and the stability of the full-spread high bracket are checked. The bearing capacity of the high-position bracket 2 is required to be more than 4KN/m < 2 >, and the overhanging length of the high-position bracket 2 is required to be less than 120mm. And the periphery of the whole operation platform is provided with a safety railing not lower than 1.2m, and a dense safety net is hung externally, so that the safety of constructors is ensured. Finally, the structure is firmer, the supporting performance is stronger, the safety of the assembly construction of the flat net rack sliding unit 4 with larger weight is more effectively ensured, and the construction requirement can be met.
The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.
Claims (9)
1. The method for high-level sliding construction and track setting of the flat net rack is characterized by comprising the following steps of:
step one: arranging high bracket below the design position of the grid frame before casting the concrete shear wall;
step two: the casting of the shear wall is completed, and the reinforced concrete shear wall is formed after the concrete strength reaches the requirement;
step three: a sliding rail is arranged on the high bracket, and anti-offset positioning mechanisms are arranged on two sides of the sliding rail;
step four: a plurality of flat net rack sliding units are arranged on the full scaffold built at the initial stage of the sliding track;
step five: connecting a flat net rack sliding unit which slides to a specified position to a reinforced concrete shear wall;
step six: and removing the high bracket and the sliding rail.
2. The method for constructing the flat net rack by high-level sliding and arranging the rails according to claim 1, wherein the method is suitable for steel structure roof projects with a lower structure of a concrete shear wall and an upper net rack positioned between two side shear walls.
3. The method for high-level sliding construction and track setting of the flat net rack according to claim 1, wherein the method comprises the following steps: the high bracket is connected with the reinforced concrete shear wall in a pre-buried mode.
4. The method for high-level sliding construction and track setting of the flat net rack according to claim 1, wherein the method comprises the following steps: the full scaffold is built at the initial stage of the sliding track to form a net rack assembly operation platform, and the flat net rack sliding unit is built at the top of the net rack assembly operation platform.
5. The method for high-level sliding construction and track setting of the flat net rack according to claim 1, wherein the method comprises the following steps: the high bracket can adopt an H-shaped steel beam, and is welded or connected with an embedded part in the reinforced concrete shear wall through bolts.
6. The method for high-level sliding construction and track setting of the flat net rack according to claim 1, wherein the method comprises the following steps: the sliding rail can be a hot-rolled steel beam, and is fixedly connected with the sliding beam or the high bracket.
7. The method for high-level sliding construction and track setting of the flat net rack according to claim 1, wherein the method comprises the following steps: the joint of the sliding rails is firmly connected by adopting a special fastener for the rails.
8. The method for high-level sliding construction and track setting of the flat net rack according to claim 1, wherein the method comprises the following steps: butter is smeared on the upper surface of the sliding rail.
9. The method for high-level sliding construction and track setting of the flat net rack according to claim 1, wherein the method comprises the following steps: the locating mechanism comprises locating pieces, locking pieces and screws, the screws are arranged at the bottoms of the high-position brackets and penetrate through the locating pieces, at the moment, the locating pieces are supported on two sides of the sliding rail, and the screws are locked and fixed through the locking pieces at the tops of the locating pieces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310581448.6A CN116378432A (en) | 2023-05-23 | 2023-05-23 | High-level sliding construction and track setting method for flat net rack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310581448.6A CN116378432A (en) | 2023-05-23 | 2023-05-23 | High-level sliding construction and track setting method for flat net rack |
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| CN116378432A true CN116378432A (en) | 2023-07-04 |
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| CN202310581448.6A Pending CN116378432A (en) | 2023-05-23 | 2023-05-23 | High-level sliding construction and track setting method for flat net rack |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0949330A (en) * | 1995-08-07 | 1997-02-18 | Tomoe Corp | Slidingly erecting construction method of structure |
| CN203334692U (en) * | 2013-06-26 | 2013-12-11 | 重庆工业设备安装集团有限公司 | T-type support slip installation structure of plate-type steel truss |
| CN106223595A (en) * | 2016-08-10 | 2016-12-14 | 中国中元国际工程有限公司 | A kind of rack high altitude bulk sliding platform and high altitude bulk construction method |
| CN206753085U (en) * | 2017-04-20 | 2017-12-15 | 江苏南通二建集团有限公司 | A kind of sliding platform for being used to install high-altitude wire frame steel construction |
| CN110107073A (en) * | 2019-04-04 | 2019-08-09 | 中国建筑第八工程局有限公司 | Close the self-supporting operation platform and its construction method of long-span space |
| JP2019214893A (en) * | 2018-06-14 | 2019-12-19 | 株式会社巴コーポレーション | Slide method for rigid-frame structure |
| CN215254700U (en) * | 2021-04-15 | 2021-12-21 | 中国联合工程有限公司 | Garbage storehouse roofing bolt ball rack construction system that slides |
-
2023
- 2023-05-23 CN CN202310581448.6A patent/CN116378432A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0949330A (en) * | 1995-08-07 | 1997-02-18 | Tomoe Corp | Slidingly erecting construction method of structure |
| CN203334692U (en) * | 2013-06-26 | 2013-12-11 | 重庆工业设备安装集团有限公司 | T-type support slip installation structure of plate-type steel truss |
| CN106223595A (en) * | 2016-08-10 | 2016-12-14 | 中国中元国际工程有限公司 | A kind of rack high altitude bulk sliding platform and high altitude bulk construction method |
| CN206753085U (en) * | 2017-04-20 | 2017-12-15 | 江苏南通二建集团有限公司 | A kind of sliding platform for being used to install high-altitude wire frame steel construction |
| JP2019214893A (en) * | 2018-06-14 | 2019-12-19 | 株式会社巴コーポレーション | Slide method for rigid-frame structure |
| CN110107073A (en) * | 2019-04-04 | 2019-08-09 | 中国建筑第八工程局有限公司 | Close the self-supporting operation platform and its construction method of long-span space |
| CN215254700U (en) * | 2021-04-15 | 2021-12-21 | 中国联合工程有限公司 | Garbage storehouse roofing bolt ball rack construction system that slides |
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