CN209585294U - A kind of tower crane attachment pre-embedded device based on aluminum dipping form construction - Google Patents
A kind of tower crane attachment pre-embedded device based on aluminum dipping form construction Download PDFInfo
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- CN209585294U CN209585294U CN201822031069.7U CN201822031069U CN209585294U CN 209585294 U CN209585294 U CN 209585294U CN 201822031069 U CN201822031069 U CN 201822031069U CN 209585294 U CN209585294 U CN 209585294U
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- tower crane
- dipping form
- aluminum dipping
- fitting
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Abstract
The utility model provides a kind of tower crane attachment pre-embedded device based on aluminum dipping form construction, it is arranged in reinforcing bar main structure, aluminum dipping form component is assemblied with outside reinforcing bar main structure, aluminum dipping form component is equipped with mounting hole at installation of embedded parts position, wooden model is installed on the mounting hole, the through-hole for allowing built-in fitting to pass through is provided on wooden model, it is the first fastener inserts that built-in fitting, which passes through through-hole to enter the part in reinforcing bar main structure, the part that built-in fitting does not pass through through-hole is the second fastener inserts, and the first fastener inserts are connected with steel reinforcing structure in reinforcing bar main structure.The device is when aluminum dipping form is constructed, aluminum dipping form is replaced to carry out assembly using wooden model at tower crane attachment installation of embedded parts position, under the premise of guaranteeing not cut aluminum dipping form, accurately embedded built-in fitting, convenient for the installation of tower crane attachment, and reinforcing bar reinforcement processing is carried out to built-in fitting, prevents tower crane operational process drawing crack concrete, rear aperture is not necessarily to when installing tower crane in the later period simultaneously, avoids the reinforcing bar of damage main structure wall column.
Description
Technical field
The utility model belongs to the realm of building construction, and in particular to a kind of pre-buried dress of tower crane attachment based on aluminum dipping form construction
It sets.
Background technique
Tower crane is one of the most common type lifting equipment on construction site, for reinforcing bar, wooden flute, foot hand needed for handling construction
The equipment of the construction raw material such as pipe, is a kind of essential equipment of construction.Tower crane generally uses adhesion type, from ground base
Plinth is taken root, a section to connect height, has a certain distance between existing tower crane and building, in order to guarantee the stabilization of tower crane
Property, all skyscraper tower cranes require to connect by attachment device with building.And the prior art is generally in building main body
Not pre-buried pre-embedded device in structure construction procedure, using the later period on the reinforced concrete shear wall or column of main structure after open
The mode in hole；After tower crane during aperture, tower crane attachment installation personnel does not know about the knowledge of main structure, aperture with
Meaning property is too big, and in the case that administrative staff's supervision is not tight, when aperture is easy the lengthways main steel bar of truncation shear wall or structural column, to master
Body structure entirety stress impacts, and total is made to be in the state of easy unstability, and aperture in the position of tower crane installation attachment
Afterwards, the later period repair process difficulty of main structure is big, and built-in fitting is buried in major structure of construction work progress in addition, also having,
But it can be needed in reinforcing bar main structure external splice aluminum dipping form component in embedded built-in fitting in major structure of construction work progress
It to be punched in the installation of embedded parts position on aluminum dipping form component, to destroy aluminum dipping form component.
Utility model content
In view of the above-mentioned problems, the utility model provides a kind of tower crane attachment pre-embedded device based on aluminum dipping form construction, this is pre-
Device is buried in aluminum dipping form construction, replaces aluminum dipping form to carry out assembly using wooden model at tower crane attachment installation of embedded parts position, is being guaranteed not
Under the premise of cutting aluminum alloy pattern plate, built-in fitting is accurately buried, convenient for the installation of tower crane attachment, while reinforcing bar reinforcement is carried out to built-in fitting
Processing prevents tower crane operational process drawing crack concrete, while being not necessarily to rear aperture when installing tower crane in the later period, avoids damage to main body knot
The reinforcing bar of structure wall column.
The technical problems to be solved in the utility model is realized using following technical scheme:
A kind of tower crane attachment pre-embedded device based on aluminum dipping form construction, is arranged in reinforcing bar main structure, the reinforcing bar main body
Structural outer is assemblied with aluminum dipping form component, and the aluminum dipping form component outside the reinforcing bar main structure is provided at installation of embedded parts position
Mounting hole is equipped with wooden model on the mounting hole, and the through-hole for allowing built-in fitting to pass through, the built-in fitting are provided on the wooden model
Being placed in the part in the reinforcing bar main structure across through-hole is the first fastener inserts, and the built-in fitting does not pass through through-hole and is placed in institute
The part stated outside reinforcing bar main structure is the second fastener inserts, and first fastener inserts are connected with steel in reinforcing bar main structure
Muscle ruggedized construction.
The utility model is the tower crane attachment pre-embedded device based on aluminum dipping form construction, which replaces aluminum dipping form to set with wooden model
Through-hole is set, prevents aluminum dipping form from damaging, is conducive to the turnover rate for improving template, reduces use cost, the appearance of template will not be made
At influence, template surface concrete is effectively prevent to starch sagging, meanwhile, the through-hole of wooden model setting allows built-in fitting to pass through, and can prevent pre-
Embedded part shifts during cement pours, and so as to realize that the precision of built-in fitting setting improves, quality is obtained reliably
Guarantee；At the same time, the pre-buried of built-in fitting is carried out in aluminum dipping form work progress, it is possible to reduce the later period is in constructure body structure
The process for punching construction, shortens the construction period, improves labor efficiency, and can reduce noise and dust in drill process, prevents simultaneously
Only the later period damages the lengthways main steel bar of constructure body structure in constructure body structure drill process, to main structure integrally by
Power impacts；In addition, built-in fitting is also connect with steel reinforcing structure, after the completion of being poured to wall, steel reinforcing structure with
Wall is integrated, and improves the load assignment of built-in fitting, to reinforce to built-in fitting, can be avoided later period tower crane and ran
Drawing crack wall column concrete in journey.
Preferably, the steel reinforcing structure includes the horizontal reinforcement and vertical reinforcing bar that binding is integrated.
Using above-mentioned preferred embodiment, binds the horizontal reinforcement being integrated and vertical reinforcing bar and closed by concreting and wall
The load assignment for being integrated improvement built-in fitting prevents in later period tower crane operational process to play the role of reinforcing to built-in fitting
Drawing crack wall or main body.
Preferably, the horizontal reinforcement quantity is more than or equal to 3, and the vertical number of steel bars is more than or equal to 3, the horizontal steel
Muscle number is equal with vertical reinforcing bar number.
Using above-mentioned preferred embodiment, can further improve the load assignment of built-in fitting, thus play to built-in fitting into
The effect that one step is reinforced.
Preferably, the diameter of the horizontal reinforcement is 16mm, and the diameter of the vertical reinforcing bar is 16mm.
Using above-mentioned preferred embodiment, horizontal reinforcement and vertical bar diameter are all made of 16mm, can play the role of reinforcing,
Simultaneously because the numerical value of the diameter is consistent with the bar diameter of reinforcing bar main structure, therefore, it is possible to reduce materials'use type, section
About cost.
Preferably, the built-in fitting is round steel drag hook.
It as built-in fitting is since round steel has plasticity good using round steel, safety stock is high using above-mentioned preferred embodiment
Advantage.
Preferably, it is the first fastener inserts, institute that the round steel drag hook, which passes through through-hole and is placed in the part in reinforcing bar main structure,
Stating round steel drag hook and not passing through part that through-hole is placed in outside the reinforcing bar main structure is the second fastener inserts, described first pre-buried group
The end of part free end is equipped with drag hook, and the end of second fastener inserts free end is provided with screw thread.
Using above-mentioned preferred embodiment, the end of the free end of the first fastener inserts is equipped with drag hook, facilitates connection steel reinforcing
Structure；The end of second fastener inserts free end is provided with screw thread, passes through bolt convenient for the attached wall part and the second built-in fitting of tower crane
Connection.
Preferably, the diameter of the round steel drag hook is 22mm.
Using above-mentioned preferred embodiment, the size of the diameter can guarantee that built-in fitting can carry the optimal value of tower crane load.
Preferably, the number of openings being arranged on the wooden model is more than or equal to two rows, and each row is by several equally cloth
The single through-hole set is constituted in "-" type structural arrangement, each described through-hole is connected with a built-in fitting.
Using above-mentioned preferred embodiment, the fixation of tower crane attached wall part can be convenient, and increase the stabilization of attached wall part and built-in fitting
Property；
Preferably, the number of openings being arranged on the plank sheathing is two rows, and each row is provided with 3 through-holes equally cloth
Arrangement is set, each described through-hole is connected with a built-in fitting.
Using above-mentioned pre-program, it is distributed optimal case for built-in fitting, can satisfy enough while the quantity of built-in fitting
Bear the carrying of tower crane.
Detailed description of the invention
Fig. 1 is the schematic diagram that pre-embedded device is installed in reinforcing bar main structure；
Fig. 2 is the aluminum dipping form component matching die figure at pre-embedded device；
Fig. 3 is the aluminum dipping form component matching die figure in reinforcing bar main structure；
Fig. 4 pour after wall body structure on pre-embedded device schematic diagram；
Fig. 5 wood model structure schematic diagram.
In figure, 1- reinforcing bar main structure, 2- aluminum dipping form component, 3- wooden model, 31- through-hole, 4- built-in fitting, 41 first pre-buried groups
Part, the second fastener inserts of 42-, the vertical reinforcing bar of 5-, 6- horizontal reinforcement, 7-T shape steel plate.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, with reference to the accompanying drawing and specifically
The utility model is described in detail in embodiment.It should be appreciated that specific embodiment described herein is only used to explain this
Utility model is not used to limit the utility model.
Embodiment 1
A kind of tower crane attachment pre-embedded device based on aluminum dipping form construction, is arranged in reinforcing bar main structure 1, the reinforcing bar main body
Aluminum dipping form component 2 is assemblied with outside structure 1, the aluminum dipping form component 2 outside the reinforcing bar main structure 1 is in 4 installed position of built-in fitting
It is provided with mounting hole, wooden model 3 is installed on the mounting hole, the through-hole for allowing built-in fitting 4 to pass through is provided on the wooden model 3
31, it is the first fastener inserts 41, the built-in fitting 4 that the built-in fitting 4, which passes through through-hole 31 and is placed in the part in reinforcing bar main structure 1,
The second fastener inserts of part 42 of through-hole 31 being partially disposed in outside reinforcing bar main structure 1, first fastener inserts 41 are not passed through
Steel reinforcing structure is connected in reinforcing bar main structure 1.It is reinforcing bar master that the pre-embedded device of the utility model, which is in wall body structure,
The tower crane attachment pre-embedded device that body structure 1 and when aluminum dipping form component 2 is assemblied with outside it are arranged, aluminum dipping form component 2 are installed in built-in fitting 4
It is provided with mounting hole at position, wooden model 3 is installed on the mounting hole, i.e., is installed in aluminum dipping form component 2 in tower crane attachment built-in fitting 4
Aluminum dipping form at position is replaced with wooden model 3, thus the through-hole 31 that setting allows built-in fitting 4 to pass through on wooden model 3, so as to prevent
Aluminum dipping form damage is conducive to the turnover rate for improving template, reduces use cost, will not impact to the appearance of template, effectively
Prevent template surface concrete from starching sagging, the through-hole 31 that built-in fitting 4 passes through on wooden model 3 is connect with steel reinforcing structure, wherein through-hole 31
Fixed effect can be played to built-in fitting 4, prevent built-in fitting 4 from shifting during concreting, so as to
Realize that the precision that built-in fitting 4 is arranged improves, quality is reliably guaranteed；At the same time, it is carried out in aluminum dipping form work progress pre-
Embedded part 4 it is pre-buried, the first fastener inserts 41 are poured with wall after casting concrete is integrally formed, and the second fastener inserts 42 stay in
Wall is outer to be connect with tower crane attached wall part, makes tower crane attachment on wall, it is possible to reduce the later period sets in constructure body structure punching
Other assemblies are set by tower crane attachment on wall, thus be omitted punching and in hole mounting assembly process, shorten work
Phase improves labor efficiency, and can reduce noise and dust in drill process, while preventing the later period in constructure body structure
The lengthways main steel bar that constructure body structure is damaged in drill process, to avoid impacting main structure entirety stress；This
Outside, the utility model built-in fitting 4 is also connect with steel reinforcing structure, after the completion of being poured to wall, steel reinforcing structure and wall
Body is integrated, and the load assignment for improving built-in fitting 4 can be avoided later period tower crane and ran to reinforce to built-in fitting 4
Drawing crack wall column concrete in journey.
The utility model needs to deepen in aluminum dipping form pre- at confirmation tower crane attachment in drawing before the splicing of aluminum dipping form component 2
Embedded part 4 is accurate, and carries out 2 preassembling of aluminum dipping form component in factory and checked, and to improve the positioning accuracy of construction, protects
Construction quality is demonstrate,proved, in addition, should be staggered aluminum dipping form component 2 with mould in aluminum dipping form drawing in-depth stage reply 4 burial place of built-in fitting
With the edge joint position between wooden model 3；After built-in fitting 4 be installed and other work after the completion of, it can carry out concreting,
First fastener inserts 41 are cast in wall, the second fastener inserts 42 are reserved in outside wall, wait until tower crane attachment built-in fitting 4
When the concrete strength at the place of setting reaches 100%, wooden model 3 and aluminum dipping form component 2 are removed, in the second fastener inserts being reserved in outside wall
Welded molding T-steel plate 7 on 42, tower crane are connect by the attached wall part of tower crane with the free end of the second fastener inserts 42,
It is connect by the strut of tower crane with T-steel plate 7 simultaneously thus by tower crane attachment on wall.
Embodiment 2
Based on the above embodiment 1, the steel reinforcing structure includes the horizontal reinforcement 6 and vertical reinforcing bar 5 that binding is integrated.
The steel reinforcing structure includes that the horizontal reinforcement 6 that binding is integrated and vertical reinforcing bar 5 are combined by concreting and wall
The load assignment that one improves built-in fitting prevents from drawing in later period tower crane operational process to play the role of reinforcing to built-in fitting 4
Split wall or main body.The steel reinforcing structure of the utility model ties up horizontal reinforcement 6 and vertical reinforcing bar 5 before installation template
It pricks within reinforcing bar main structure 1, horizontal reinforcement 6 and vertical reinforcing bar 5 are staggered to form steel mesh reinforcement structure and the first fastener inserts
41 connections.In the present embodiment, other contents not described are same as the previously described embodiments, and details are not described herein again.
Embodiment 3
Based on the above embodiment 2,6 quantity of horizontal reinforcement is more than or equal to 3, and vertical 5 quantity of reinforcing bar is more than or equal to
3, the horizontal reinforcement number 6 is equal with vertical reinforcing bar number 5.The load assignment of built-in fitting 4 can further be improved, to play pair
The effect of built-in fitting 4 further reinforced.In the present embodiment, other contents not described are same as the previously described embodiments, herein not
It repeats again.
Embodiment 4
Based on the above embodiment 3, the diameter of the horizontal reinforcement 6 is 16mm, and the diameter of the vertical reinforcing bar 5 is 16mm.
Horizontal reinforcement 6 and 5 diameter of vertical reinforcing bar are all made of 16mm, can play the role of reinforcing, simultaneously because the numerical value of the diameter with
Used bar diameter is consistent in reinforcing bar main structure 1, therefore, it is possible to reduce materials'use type, save the cost.This implementation
In example, other contents not described are same as the previously described embodiments, and details are not described herein again.
Embodiment 5
Based on the above embodiment 1 or 4, the built-in fitting 4 is round steel drag hook.Round steel has good plasticity, therefore will justify
Steel drag hook has the advantages that safety stock height etc. as built-in fitting 4.In the present embodiment, one end of the round steel drag hook is hook-shaped.
In the present embodiment, other contents not described are same as the previously described embodiments, and details are not described herein again.
Embodiment 6
Based on the above embodiment 5, it is first that the round steel drag hook, which passes through through-hole 31 and is placed in the part in reinforcing bar main structure 1,
Fastener inserts 41, it is second pre-buried group that the round steel drag hook, which does not pass through the part that through-hole 31 is placed in outside the reinforcing bar main structure 1,
The end of part 42,41 free end of the first fastener inserts is equipped with drag hook, and the end of 42 free end of the second fastener inserts is provided with
Screw thread；The end of the free end of first fastener inserts 41 is equipped with drag hook, facilitates connection steel reinforcing structure；Second fastener inserts 42
The end of free end is provided with screw thread, is bolted convenient for the attached wall part and the second built-in fitting 42 of tower crane.The present embodiment is
A kind of structure of round steel drag hook is selected in the case where being connected by screw bolts according to attachment device of tower crane and round steel drag hook.But
It is that the design of round steel drag hook is not limited to one of the present embodiment.In the present embodiment, other contents not described and above-mentioned reality
It is identical to apply example, details are not described herein again.
Embodiment 7
Based on the above embodiment 6, the diameter of the round steel drag hook is 22mm.The size of the diameter can guarantee built-in fitting 4
The optimal value of tower crane load can be carried.The diameter 22mm of round steel drag hook in the present embodiment is selected according to the application tower crane load
Optimal value, therefore, the diameter of round steel drag hook are not limited to 22mm.In the present embodiment, other contents not described with it is upper
It is identical to state embodiment, details are not described herein again.
Embodiment 8
Based on the above embodiment 4 or 7,31 quantity of through-hole being arranged on the wooden model 3 is more than or equal to two rows, each row be by
Several single through-holes 31 equally arranged are constituted in "-" type structural arrangement, each described through-hole 31 is connected with
One built-in fitting 4.The present embodiment realizes the layout to built-in fitting 4 by the layout of through-hole 31 on wooden model 3, so as to convenient
The fixation of tower crane attached wall part increases the stability of attached wall part and built-in fitting.But the layout of through-hole 31 is not limited to this on wooden model 3
One of embodiment.In the present embodiment, other contents not described are same as the previously described embodiments, and details are not described herein again.
Embodiment 9
Based on the above embodiment 8,31 quantity of through-hole being arranged on the wooden model 3 is two rows, and each row is provided with 3 through-holes
31 equally arrange arrangement, each described through-hole 31 is connected with a built-in fitting 4.Layout side in the present embodiment
Formula can satisfy the carrying that built-in fitting 4 bears tower crane in quantity enough for the optimal case that built-in fitting 4 is laid out.But wooden model 3
The layout of upper through-hole 31 is not limited to one of the present embodiment.In the present embodiment, other contents not described and above-mentioned implementation
Example is identical, and details are not described herein again.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, and should refer to
Out, any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention etc. should all include
It is within the protection scope of the utility model.
Claims (9)
1. a kind of tower crane attachment pre-embedded device based on aluminum dipping form construction, is arranged in reinforcing bar main structure, which is characterized in that described
Aluminum dipping form component is assemblied with outside reinforcing bar main structure, the aluminum dipping form component outside the reinforcing bar main structure is in installation of embedded parts position
Place is provided with mounting hole, and wooden model is equipped on the mounting hole, and the through-hole for allowing built-in fitting to pass through, institute are provided on the wooden model
Stating built-in fitting and being placed in the part in the reinforcing bar main structure across through-hole is the first fastener inserts, and the built-in fitting does not pass through logical
It is the second fastener inserts that hole, which is placed in the part outside the reinforcing bar main structure, and first fastener inserts are in reinforcing bar main structure
It is connected with steel reinforcing structure.
2. a kind of tower crane attachment pre-embedded device based on aluminum dipping form construction according to claim 1, which is characterized in that the steel
Muscle ruggedized construction includes the horizontal reinforcement and vertical reinforcing bar that binding is integrated.
3. a kind of tower crane attachment pre-embedded device based on aluminum dipping form construction according to claim 2, which is characterized in that the water
Flat number of steel bars is more than or equal to 3, and the vertical number of steel bars is more than or equal to 3, and the horizontal reinforcement number is equal with vertical reinforcing bar number.
4. a kind of tower crane attachment pre-embedded device based on aluminum dipping form construction according to claim 3, which is characterized in that the water
The diameter of flat reinforcing bar is 16mm, and the diameter of the vertical reinforcing bar is 16mm.
5. a kind of tower crane attachment pre-embedded device based on aluminum dipping form construction according to claim 1 or 4, which is characterized in that institute
Stating built-in fitting is round steel drag hook.
6. a kind of tower crane attachment pre-embedded device based on aluminum dipping form construction according to claim 5, which is characterized in that the circle
It is the first fastener inserts that steel drag hook, which passes through through-hole and is placed in the part in the reinforcing bar main structure, and the round steel drag hook does not pass through logical
It is the second fastener inserts that hole, which is placed in the part outside the reinforcing bar main structure, and the end of first fastener inserts free end is equipped with
The end of drag hook, second fastener inserts free end is provided with screw thread.
7. a kind of tower crane attachment pre-embedded device based on aluminum dipping form construction according to claim 6, which is characterized in that the circle
The diameter of steel drag hook is 22mm.
8. a kind of tower crane attachment pre-embedded device based on aluminum dipping form construction according to claim 4 or 7, which is characterized in that institute
It states the number of openings being arranged on wooden model and is more than or equal to two rows, each row is by several single through-holes equally arranged in a word
Type structural arrangement is constituted, each described through-hole is connected with a built-in fitting.
9. a kind of tower crane attachment pre-embedded device based on aluminum dipping form construction according to claim 8, which is characterized in that the wood
The number of openings being arranged on mould is two rows, and each row is provided with 3 through-holes and equally arranges arrangement, each described through-hole connects
It connects and is provided with a built-in fitting.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822031069.7U CN209585294U (en) | 2018-12-05 | 2018-12-05 | A kind of tower crane attachment pre-embedded device based on aluminum dipping form construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822031069.7U CN209585294U (en) | 2018-12-05 | 2018-12-05 | A kind of tower crane attachment pre-embedded device based on aluminum dipping form construction |
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| CN209585294U true CN209585294U (en) | 2019-11-05 |
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ID=68349691
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| CN201822031069.7U Active CN209585294U (en) | 2018-12-05 | 2018-12-05 | A kind of tower crane attachment pre-embedded device based on aluminum dipping form construction |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110685406A (en) * | 2019-11-12 | 2020-01-14 | 上海建工四建集团有限公司 | Integral prefabricating and forming structure for embedded part and core cylinder reinforcing mesh of tower crane |
| CN113027207A (en) * | 2021-03-12 | 2021-06-25 | 中国建筑一局(集团)有限公司 | Detachable beam frame for supporting squat silo steel platform |
| CN114109035A (en) * | 2021-11-09 | 2022-03-01 | 中建一局集团第五建筑有限公司 | Secondary bar planting non-bar planting embedded box and construction method thereof |
| CN114575618A (en) * | 2022-03-24 | 2022-06-03 | 中建二局第一建筑工程有限公司 | Connecting beam supporting system, building structure and construction method |
| CN116290730A (en) * | 2023-02-20 | 2023-06-23 | 中建三局集团有限公司 | Aluminum alloy template and embedded part connecting structure and construction method thereof |
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2018
- 2018-12-05 CN CN201822031069.7U patent/CN209585294U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110685406A (en) * | 2019-11-12 | 2020-01-14 | 上海建工四建集团有限公司 | Integral prefabricating and forming structure for embedded part and core cylinder reinforcing mesh of tower crane |
| CN113027207A (en) * | 2021-03-12 | 2021-06-25 | 中国建筑一局(集团)有限公司 | Detachable beam frame for supporting squat silo steel platform |
| CN113027207B (en) * | 2021-03-12 | 2022-09-16 | 中国建筑一局(集团)有限公司 | Detachable beam frame for supporting squat silo steel platform |
| CN114109035A (en) * | 2021-11-09 | 2022-03-01 | 中建一局集团第五建筑有限公司 | Secondary bar planting non-bar planting embedded box and construction method thereof |
| CN114109035B (en) * | 2021-11-09 | 2023-03-21 | 中建一局集团第五建筑有限公司 | Secondary bar planting non-bar planting embedded box and construction method thereof |
| CN114575618A (en) * | 2022-03-24 | 2022-06-03 | 中建二局第一建筑工程有限公司 | Connecting beam supporting system, building structure and construction method |
| CN116290730A (en) * | 2023-02-20 | 2023-06-23 | 中建三局集团有限公司 | Aluminum alloy template and embedded part connecting structure and construction method thereof |
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