CN113291987A - Reusable tower crane lifting beam embedded part and construction method - Google Patents
Reusable tower crane lifting beam embedded part and construction method Download PDFInfo
- Publication number
- CN113291987A CN113291987A CN202110478752.9A CN202110478752A CN113291987A CN 113291987 A CN113291987 A CN 113291987A CN 202110478752 A CN202110478752 A CN 202110478752A CN 113291987 A CN113291987 A CN 113291987A
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- board
- bury
- tower crane
- wall body
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- 238000010276 construction Methods 0.000 title claims abstract description 25
- 210000004379 membrane Anatomy 0.000 claims description 13
- 239000012528 membrane Substances 0.000 claims description 13
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 10
- 238000009415 formwork Methods 0.000 claims description 9
- 238000000465 moulding Methods 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 230000001680 brushing effect Effects 0.000 claims description 4
- 210000002219 extraembryonic membrane Anatomy 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000005452 bending Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 238000010008 shearing Methods 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 230000007306 turnover Effects 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012372 quality testing Methods 0.000 description 1
- 238000002407 reforming Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/18—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
- B66C23/20—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes with supporting couples provided by walls of buildings or like structures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/72—Counterweights or supports for balancing lifting couples
- B66C23/78—Supports, e.g. outriggers, for mobile cranes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention relates to a reusable tower crane lifting beam embedded part and a construction method, comprising the following steps: openly bury the board, the back bury the board and set up in openly bury the connecting piece of board one side, the connecting piece is used for connecting the tower crane, openly bury the board with the back bury the board locate the wall body both sides respectively and through bolted connection, openly bury the board the back bury the board and be equipped with a plurality of archs towards wall body one side, be equipped with on the wall body with openly bury the board the back buries board shape assorted recess, just openly bury the board be equipped with the corresponding bolt hole in a plurality of positions on the board is buried to the back. According to the reusable tower crane lifting beam embedded part and the construction method, the friction force between the embedded plate and the wall body is increased through the protrusions on the embedded plate, so that the shearing force applied to the bolt is greatly reduced, and the phenomenon that the bolt cannot be taken out of the wall body due to deformation is avoided.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a reusable tower crane lifting beam embedded part and a construction method.
Background
At present, in civil engineering construction, the connection between a lifting beam of a heavy tower crane (a movable arm tower crane and the like) and a concrete wall body is realized through an embedded part, and the embedded part is generally embedded in the concrete members such as the wall body or a structural beam and the like in a form of adopting a rectangular steel plate and welding anchor pulling reinforcing steel bars before concrete pouring.
The traditional method has the following disadvantages: the material is wasted, because the tower crane is temporarily used for construction, after the tower crane is dismantled, the embedded part can only be placed in concrete and cannot be dismantled, so that the metal material is wasted; the hidden danger in the later period is large, and the bonding force between the plastering mortar and the concrete member in the area in the later period is insufficient to easily cause falling off because the embedded part is mounted by being attached to a wall body; the construction is inconvenient, and the installation of later stage tower crane hoisting beam needs on burying the piece welding otic placode or layer board to need the on-the-spot quality testing (like ultrasonic inspection) to check and accept, no matter the installation with check and accept the construction loaded down with trivial details, delay the time limit for a project.
In recent years, with the development of technology, turnover embedded parts are also generated, and a form of fixing an embedded plate by using a wall-penetrating bolt is generally adopted, but after the embedded parts are stressed, the wall-penetrating bolt is deformed too much and cannot be taken out smoothly, the bearing capacity is low, the reliability and the safety are not high, the embedded parts cannot be reused, and the cost is high.
Disclosure of Invention
The invention aims to solve the problem that the existing tower crane embedded part cannot be taken out and reused due to bolt deformation after being used, and adopts the technical scheme that: a reusable tower crane lifting beam embedded part, comprising: openly bury the board, the back bury the board and set up in openly bury the connecting piece of board one side, the connecting piece is used for connecting the tower crane, openly bury the board with the back bury the board locate the wall body both sides respectively and through bolted connection, openly bury the board the back bury the board and be equipped with a plurality of archs towards wall body one side, be equipped with on the wall body with openly bury the board the back buries board shape assorted recess, just openly bury the board be equipped with the corresponding bolt hole in a plurality of positions on the board is buried to the back.
The further improvement is that the bulges are strip bulges which are arranged in parallel.
In a further improvement, the cross section of the protrusion perpendicular to the extending direction is trapezoidal.
In a further development, the oblique side of the cross-section of the projection makes an angle of 105 ° with the top side.
The improvement is that the connecting piece comprises two lug plates which are arranged in parallel, and pin shaft holes are arranged on the lug plates.
The improved structure is characterized in that the ear plates are provided with first stiffening plates for connecting the two ear plates.
The connecting piece comprises a supporting groove formed by encircling two side plates and a transverse plate.
The further improvement is that the outer sides of the two side plates are provided with second stiffening plates extending transversely, and the outer side of the transverse plate is provided with a third stiffening plate extending downwards.
On the other hand, the invention also provides a construction method of the reusable tower crane lifting beam embedded part, which comprises the following steps:
manufacturing a moulding bed for forming a groove on a wall;
setting a moulding bed along with the pouring of the wall body, and removing the moulding bed after the concrete is solidified;
hoisting the front buried plate and the back buried plate to a specified position by using a construction integral hoisting formwork or scaffold facility;
two uppermost high-strength screws penetrate through the upper part of the designated position;
directly penetrating the front buried plate and the back buried plate through a high-strength bolt and clamping the high-strength bolt into a groove of a wall body, and temporarily fixing the high-strength bolt and the back buried plate by using a bolt;
and penetrating the rest bolts, and screwing the double-sided nuts of the bolts to finish the installation of the buried plate.
The further improvement is that the form is arranged along with the pouring of the wall body, and the form is removed after the concrete is solidified, comprising the following steps:
according to the size and the specific positioning of the forming die, the reinforcing steel bars in the corresponding areas of the wall body are arranged according to the following ratio of 1: 6 bending to avoid the tire mold, and adding a bearing reinforcing steel bar according to the requirement or taking other measures to avoid the collision of the tire mold and the reinforcing steel bar and the like;
brushing a release agent on the side of the tire membrane concrete, installing a tire membrane, arranging a PVC sleeve at the position of a tire membrane bolt hole, wherein the diameter of the sleeve is larger than that of a bolt, and the sleeve penetrates through the tire membrane bolt hole to reach an outer template;
fixing and adjusting the fetal membrane and the outer template at the inner side to determine the precision, closing the templates and pulling the split bolts;
and pouring concrete, and removing the formwork after the formwork is disturbed after the initial setting of the concrete and the concrete reaches a certain strength.
The invention has the beneficial effects that:
according to the reusable tower crane lifting beam embedded part and the construction method, the friction force between the embedded plate and the wall body is increased through the protrusions on the embedded plate, so that the shearing force applied to the bolt is greatly reduced, and the phenomenon that the bolt cannot be taken out of the wall body due to deformation is avoided.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic structural view of a reusable tower crane lifting beam embedded part of the invention;
FIG. 2 is a schematic structural diagram of the reusable tower crane lifting beam embedded part after construction:
FIG. 3 is a schematic view of the connector structure of the present invention;
FIG. 4 is a schematic view of a connector structure according to another embodiment of the present invention;
FIG. 5 is a schematic view of the construction of the fetal membranes of the present invention;
fig. 6 is a schematic view of the construction structure of the wall surface filling after the buried plate is removed.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
In the description of the invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the invention, "a plurality" means two or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.
As shown in fig. 1 and 2, the invention provides a reusable tower crane lifting beam embedded part, which comprises: openly bury board 1, the back bury board 2 and set up in openly bury connecting piece 3 of board 1 one side, connecting piece 3 is used for connecting the tower crane, openly bury board 1 with the board 2 is buried in the back and is located wall body 100 both sides respectively and carry out the split through the bolt and connect, cliies wall body 100, openly bury board 1 the back is buried board 2 and is equipped with a plurality of archs 4 towards wall body one side, be equipped with on wall body 100 with openly bury board 1 the back buries 2 shape assorted recesses, just openly bury board 1 the back is buried and is equipped with the corresponding bolt hole in a plurality of positions on the board 2. During the use, bury board 1, the back and bury board 2 and install in the corresponding recess on the wall body through bolt 5 with the front, and this recess also have with protruding recess that corresponds, after the fixed mounting, with the corresponding part of tower crane connect in on the connecting piece.
According to the reusable tower crane lifting beam embedded part and the construction method, the friction force between the embedded plate and the wall body is increased through the protrusions on the embedded plate, so that the shearing force applied to the bolt is greatly reduced, and the phenomenon that the bolt cannot be taken out of the wall body due to deformation is avoided.
The further improvement does, protruding 4 can be protruding for array form, also can be irregularly distributed's arch, and protruding in this embodiment is the strip arch, and is a plurality of protruding 4 parallel arrangement provides the ascending reaction force of tower crane through protruding in vertical direction.
The further improvement is that the cross section of the protrusion 4 perpendicular to the extending direction is trapezoidal, and the protrusion with the trapezoidal cross section can be better detached on the premise of providing good vertical supporting force.
In a further development, the inclined edge of the section of the protuberance 4 is inclined at an angle of 105 ° with respect to the top edge, in order to facilitate the demoulding of the membrane when making the groove in the surface of the wall.
The tower crane is connected and is buried the board and need carry out the adaptation according to the structure of tower crane hoisting beam, as shown in fig. 3, an adaptation structure in this embodiment does, connecting piece 3 includes two parallel arrangement's otic placode 31, just be equipped with pinhole hole 32 on the otic placode 31.
The further improvement is that the ear plates 31 are provided with first stiffening plates 33 for connecting the two ear plates 31, so as to prevent the two ear plates from being close to each other after being stressed and causing bottom fracture. In order to make the ear plate supported well from top to bottom, the first stiffener plates 33 are disposed from top to bottom, and may be installed by welding.
In another embodiment, as shown in fig. 4, the connecting member 3 is a supporting structure, which includes two side plates 34 and a supporting groove 36 surrounded by a transverse plate 35.
The further improvement is that the outer sides of the two side plates 34 are provided with second stiffening plates 341 extending transversely, the outer side of the transverse plate 35 is provided with third stiffening plates 351 extending downwards, and the second stiffening plates and the third stiffening plates provide good lateral supporting force for the support bracket, so that outward deformation of the support bracket is avoided.
On the other hand, the invention also provides a construction method of the reusable tower crane lifting beam embedded part, which comprises the following steps:
manufacturing a moulding bed 200 (shown in figure 5) for forming a groove on a wall;
setting a moulding bed along with the pouring of the wall body, and removing the moulding bed after the concrete is solidified;
hoisting the front buried plate and the back buried plate to a specified position by using a construction integral hoisting formwork or scaffold facility;
two uppermost high-strength screws penetrate through the upper part of the designated position;
directly penetrating the front buried plate and the back buried plate through a high-strength bolt and clamping the high-strength bolt into a groove of a wall body, and temporarily fixing the high-strength bolt and the back buried plate by using a bolt;
and penetrating the rest bolts, and screwing the double-sided nuts of the bolts to finish the installation of the buried plate.
The further improvement is that the manufacturing of the forming die for forming the groove on the wall body comprises the following steps:
as shown in figure 5, a steel plate 201 rolling machine is used for directly rolling a continuous groove 202, angle steel is used as a forming enclosing purlin 203 at the back of the continuous groove and is wrapped, a stiffening rib plate 204 is used on the inner side of a protruding area to avoid deformation, the tire mold is directly fixed on an outer side mold plate to avoid reforming or damaging the existing mold plate, and meanwhile, the continuous groove can be turned over and reused.
The further improvement is that the form is arranged along with the pouring of the wall body, and the form is removed after the concrete is solidified, comprising the following steps:
according to the size and the specific positioning of the forming die, the reinforcing steel bars in the corresponding areas of the wall body are arranged according to the following ratio of 1: 6 bending to avoid the tire mold, and adding a bearing reinforcing steel bar according to the requirement or taking other measures to avoid the collision of the tire mold and the reinforcing steel bar and the like;
brushing a release agent on the side of the tire membrane concrete, installing a tire membrane, arranging a PVC sleeve at the position of a tire membrane bolt hole, wherein the diameter of the sleeve is larger than that of a bolt, and the sleeve penetrates through the tire membrane bolt hole to reach an outer template;
fixing and adjusting the fetal membrane and the outer template at the inner side to determine the precision, closing the templates and pulling the split bolts;
and pouring concrete, and removing the formwork after the formwork is disturbed after the initial setting of the concrete and the concrete reaches a certain strength.
The steps for dismantling the embedded part are as follows:
(1) after the tower crane climbs beyond the area, the embedded parts (the front embedded plate and the back embedded plate) in the area can be dismantled;
(2) loosening the bolts, not detaching all the bolts at the bottom, and disturbing and loosening two bolts and nuts at the top;
(3) removing all the bolts except the two bolts at the top;
(4) and (3) fastening a steel wire rope of a crane or a winch onto the lifting hook, removing the last nut, then placing the buried plate to a designated position, removing surface residues, brushing oil for maintenance, and preparing for later-period turnover and reuse.
The method for repairing the surface of the wall body after the buried plate is removed comprises the following steps:
(1) after the embedded part is removed, planting ribs and arranging reinforcing mesh sheets in the groove area of the embedded part;
(2) the original PVC sleeve is provided with split bolts and is provided with a template, and a dustpan opening is formed in the top of the PVC sleeve;
(3) and (3) pouring and tamping concrete or high-strength grouting material by using the dustpan opening to finish the surface filling work.
The concrete structure after the filling construction is shown in fig. 6, wherein 0401 in the drawing is a split bolt, 0402 is a transverse enclosing purlin made of steel pipes, 0403 is a groove-shaped pressing plate, 0405 is a template, 0406-position vertical enclosing purlin, 0407 is a dustpan opening, 0503 is a steel bar net piece, 0504 is a planting rib, 6 is a PVC sleeve pipe, and 100 is a wall body.
By adopting the construction method, the problem of turnover of the embedded part embedded plate of the heavy tower crane is solved.
The turnover problem of the embedded part embedded plate is realized, the economic benefit is improved, and the resources are saved.
The construction quality of subsequent construction subsections of the wall body is improved.
The installation and the dismounting are convenient, and the structure bearing is stable and reliable.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (10)
1. The utility model provides a but reuse's tower crane lifting beam built-in fitting which characterized in that includes: openly bury the board, the back bury the board and set up in openly bury the connecting piece of board one side, the connecting piece is used for connecting the tower crane, openly bury the board with the back bury the board locate the wall body both sides respectively and through bolted connection, openly bury the board the back bury the board and be equipped with a plurality of archs towards wall body one side, be equipped with on the wall body with openly bury the board the back buries board shape assorted recess, just openly bury the board be equipped with the corresponding bolt hole in a plurality of positions on the board is buried to the back.
2. The reusable tower crane lifting beam embedded part according to claim 1, wherein the protrusions are strip-shaped protrusions, and the protrusions are arranged in parallel.
3. The reusable tower crane lifting beam embedded part according to claim 2, wherein the cross section of the protrusion perpendicular to the extension direction is trapezoidal.
4. The reusable tower crane lifting beam embedment of claim 3, wherein the oblique edge of the cross-section of the protrusion makes an angle of 105 ° with the top edge.
5. The reusable tower crane lifting beam embedded part according to claim 1, wherein the connecting part comprises two ear plates arranged in parallel, and pin shaft holes are arranged on the ear plates.
6. The reusable tower crane lifting beam embedded part according to claim 5, wherein a first stiffening plate for connecting the two ear plates is arranged on the ear plates.
7. The reusable tower crane lifting beam embedded part according to claim 1, wherein the connecting part comprises a supporting bracket formed by encircling two side plates and a transverse plate.
8. The reusable tower crane lifting beam embedded part according to claim 7, wherein a second stiffening plate extending transversely is arranged on the outer sides of the two side plates, and a third stiffening plate extending downwards is arranged on the outer side of the transverse plate.
9. A method for constructing a reusable tower crane lifting beam embedded part according to any one of claims 1-8, comprising the following steps:
manufacturing a moulding bed for forming a groove on a wall;
setting a moulding bed along with the pouring of the wall body, and removing the moulding bed after the concrete is solidified;
hoisting the front buried plate and the back buried plate to a specified position by using a construction integral hoisting formwork or scaffold facility;
two uppermost high-strength screws penetrate through the upper part of the designated position;
directly penetrating the front buried plate and the back buried plate through a high-strength bolt and clamping the high-strength bolt into a groove of a wall body, and temporarily fixing the high-strength bolt and the back buried plate by using a bolt;
and penetrating the rest bolts, and screwing the double-sided nuts of the bolts to finish the installation of the buried plate.
10. The construction method according to claim 9, wherein the form is arranged along with the pouring of the wall body, and the form is removed after the concrete is solidified, and the construction method comprises the following steps:
according to the size and the specific positioning of the forming die, the reinforcing steel bars in the corresponding areas of the wall body are arranged according to the following ratio of 1: 6 bending to avoid the tire mold, and adding a bearing reinforcing steel bar according to the requirement or taking other measures to avoid the collision of the tire mold and the reinforcing steel bar and the like;
brushing a release agent on the side of the tire membrane concrete, installing a tire membrane, arranging a PVC sleeve at the position of a tire membrane bolt hole, wherein the diameter of the sleeve is larger than that of a bolt, and the sleeve penetrates through the tire membrane bolt hole to reach an outer template;
fixing and adjusting the fetal membrane and the outer template at the inner side to determine the precision, closing the templates and pulling the split bolts;
and pouring concrete, and removing the formwork after the formwork is disturbed after the initial setting of the concrete and the concrete reaches a certain strength.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110478752.9A CN113291987A (en) | 2021-04-30 | 2021-04-30 | Reusable tower crane lifting beam embedded part and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110478752.9A CN113291987A (en) | 2021-04-30 | 2021-04-30 | Reusable tower crane lifting beam embedded part and construction method |
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| Publication Number | Publication Date |
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| CN113291987A true CN113291987A (en) | 2021-08-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110478752.9A Pending CN113291987A (en) | 2021-04-30 | 2021-04-30 | Reusable tower crane lifting beam embedded part and construction method |
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| Country | Link |
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| CN (1) | CN113291987A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113860190A (en) * | 2021-10-29 | 2021-12-31 | 上海建工四建集团有限公司 | Cantilever tower crane girder-turning-free placing bracket and mounting method |
| CN113860189A (en) * | 2021-10-29 | 2021-12-31 | 上海建工四建集团有限公司 | Pin shaft type climbing beam of non-turnover internal climbing tower crane and use method thereof |
| CN114592591A (en) * | 2022-03-29 | 2022-06-07 | 山东建筑大学 | Support-free prefabricated air conditioner support and construction method |
| CN115419175A (en) * | 2022-08-29 | 2022-12-02 | 上海建工七建集团有限公司 | Connecting joint of concrete structure and cantilever plate and construction method thereof |
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| GB2090900B (en) * | 1981-01-13 | 1985-03-06 | Anthes Equip Ltd | Wall formwork |
| JP2006132303A (en) * | 2004-10-05 | 2006-05-25 | Maeda Corp | Fixing structure of steel frame stud to reinforced concrete beam |
| CN103696496A (en) * | 2013-12-25 | 2014-04-02 | 中建三局建设工程股份有限公司 | Slightly protruding reusable embedded part |
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| CN212769546U (en) * | 2020-07-27 | 2021-03-23 | 中建八局第三建设有限公司 | Staple bolt formula tower crane attaches wall with spacing early warning structure |
| JP6852935B1 (en) * | 2020-01-03 | 2021-03-31 | ▲広▼州大学 | Connection structure and mounting method of concrete slab and steel beam |
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2021
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| GB2090900B (en) * | 1981-01-13 | 1985-03-06 | Anthes Equip Ltd | Wall formwork |
| JP2006132303A (en) * | 2004-10-05 | 2006-05-25 | Maeda Corp | Fixing structure of steel frame stud to reinforced concrete beam |
| CN103696496A (en) * | 2013-12-25 | 2014-04-02 | 中建三局建设工程股份有限公司 | Slightly protruding reusable embedded part |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113860190A (en) * | 2021-10-29 | 2021-12-31 | 上海建工四建集团有限公司 | Cantilever tower crane girder-turning-free placing bracket and mounting method |
| CN113860189A (en) * | 2021-10-29 | 2021-12-31 | 上海建工四建集团有限公司 | Pin shaft type climbing beam of non-turnover internal climbing tower crane and use method thereof |
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| CN113860189B (en) * | 2021-10-29 | 2024-02-09 | 上海建工四建集团有限公司 | Pin shaft type overturn-free climbing system of internal climbing tower crane |
| CN114592591A (en) * | 2022-03-29 | 2022-06-07 | 山东建筑大学 | Support-free prefabricated air conditioner support and construction method |
| CN114592591B (en) * | 2022-03-29 | 2023-12-19 | 山东建筑大学 | Support-free prefabricated air conditioner bracket and construction method |
| CN115419175A (en) * | 2022-08-29 | 2022-12-02 | 上海建工七建集团有限公司 | Connecting joint of concrete structure and cantilever plate and construction method thereof |
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Application publication date: 20210824 |
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