CN113245482A - Method for manufacturing reinforcement cage - Google Patents
Method for manufacturing reinforcement cage Download PDFInfo
- Publication number
- CN113245482A CN113245482A CN202110667530.1A CN202110667530A CN113245482A CN 113245482 A CN113245482 A CN 113245482A CN 202110667530 A CN202110667530 A CN 202110667530A CN 113245482 A CN113245482 A CN 113245482A
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- steel bar
- joints
- reinforcement
- manufacturing
- cage
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- 230000002787 reinforcement Effects 0.000 title claims abstract description 88
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 111
- 239000010959 steel Substances 0.000 claims description 111
- 238000003466 welding Methods 0.000 claims description 12
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 10
- 239000011241 protective layer Substances 0.000 claims description 10
- 230000001681 protective effect Effects 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 238000003754 machining Methods 0.000 claims description 6
- 238000005498 polishing Methods 0.000 claims description 5
- 125000006850 spacer group Chemical group 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 239000004567 concrete Substances 0.000 claims description 2
- 238000010422 painting Methods 0.000 claims description 2
- 230000003014 reinforcing effect Effects 0.000 description 9
- 238000004804 winding Methods 0.000 description 2
- 238000009435 building construction Methods 0.000 description 1
- 238000005520 cutting process 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
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F27/00—Making wire network, i.e. wire nets
- B21F27/12—Making special types or portions of network by methods or means specially adapted therefor
- B21F27/121—Making special types or portions of network by methods or means specially adapted therefor of tubular form, e.g. as reinforcements for pipes or pillars
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Reinforcement Elements For Buildings (AREA)
Abstract
The invention discloses a method for manufacturing a reinforcement cage, which is used for upsetting two joints of a reinforcement so as to improve the yield strength and the ultimate strength of the two joints of the reinforcement. The adjacent reinforcement cages are connected through the threaded connection sleeve on the connectors of the reinforced bars after upsetting, the connection of the reinforced bars corresponding to the upper and lower sections of reinforcement cages is realized through the sleeve, the strength of the connectors of the reinforced bars is improved, the strength of the connecting positions of the upper and lower sections of reinforcement cages is correspondingly improved, and the purpose of improving the overall strength of the reinforcement cages is finally achieved.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a reinforcement cage manufacturing method.
Background
The connecting technology of the filling pile reinforcement cage is quite mature, and when the diameter of the reinforcement cage is larger than 20mm, the connection is mostly connected by a sleeve. When the upper section of reinforcement cage is connected with the lower section of reinforcement cage, the processing length of the reinforcement joint of the upper section of reinforcement cage is a straight thread with the length of a straight thread sleeve, the processing length of the reinforcement joint of the lower section of reinforcement cage is a straight thread with the length of 1/2 straight thread sleeves, after the upper section of reinforcement cage is aligned with the steel bar of the lower section of reinforcement cage, the connecting sleeve of the reinforcement joint of the upper section of reinforcement cage is screwed on the reinforcement joint of the lower section of reinforcement cage, and the reinforcement joint of the upper section of reinforcement cage and the reinforcement joint of the lower section of reinforcement cage are meshed with the threads of the connecting sleeve to respectively account for half of the length of the sleeve.
Because the straight thread length that needs to connect the steel reinforcement of upper segment steel reinforcement cage is telescopic length, and the steel reinforcement of upper segment steel reinforcement cage connects the back of accomplishing with lower section steel reinforcement cage, and the steel reinforcement of upper segment steel reinforcement cage connects the screw thread that can be sleeve length 1/2 and is located outside the sleeve, and the steel bar diameter of this part is less than the parent metal reinforcing bar, and its intensity is less than the timber reinforcing bar, and is comparatively weak, influences the bulk strength of steel reinforcement cage.
Therefore, how to improve the overall strength of the reinforcement cage becomes a technical problem to be solved urgently by those skilled in the art.
Disclosure of Invention
In view of the above, the invention provides a reinforcement cage manufacturing method to improve the overall strength of the reinforcement cage.
In order to achieve the purpose, the invention provides the following technical scheme:
a reinforcement cage manufacturing method comprises the following steps:
1) upsetting two joints of the steel bar in sequence;
2) sequentially processing thread heads at the two joints of the steel bar;
3) manufacturing a plurality of reinforcement cages by sections of the reinforcement in the step 2);
4) sequentially connecting the plurality of reinforcement cages manufactured in the step 3).
Preferably, in the method for manufacturing a reinforcement cage, the step 1) specifically includes the steps of:
11) sequentially polishing two joints of the steel bar until the plane where the joints of the steel bar are located is flat;
12) and sequentially upsetting the two joints of the steel bar by using an upsetting machine until the diameter of the two joints of the steel bar is at least 10mm larger than that of the parent steel bar.
Preferably, in the method for manufacturing a reinforcement cage, the step 2) specifically includes the steps of:
21) machining a first thread with the length being at least the length of a sleeve on one of the two joints of the steel bar, and machining a second thread with the length being at least half of the length of the sleeve on the other of the two joints of the steel bar;
22) and checking whether the first thread and the second thread are qualified or not through a ring-pass no-go gauge.
Preferably, in the method for manufacturing a reinforcement cage, the step 3) specifically includes the steps of:
31) calculating the length of the hoop material;
32) manufacturing the stirrup on a reinforcing steel bar ring manufacturing table and welding the stirrup according to requirements;
33) placing the support frames on the same straight line of the same horizontal plane at intervals of 2-3 m, and then placing the steel bars in the step 1) on the support frames straightly;
34) sleeving the stirrups into a steel bar according to the design requirement or sleeving the steel bar into the stirrups, wherein the stirrups are vertical to the steel bar, and the steel bar is in spot welding or binding connection with the stirrups;
35) winding spiral ribs at specified intervals on a structure formed by connecting the reinforcing steel bars and the stirrups, and binding the spiral ribs through thin iron wires and fixing the spiral ribs at intervals by spot welding;
36) and welding or binding a protective layer cushion block.
Preferably, in the above method for manufacturing a reinforcement cage, the thickness of the protective layer spacer in the step 36) is 6-8 cm.
Preferably, in the manufacturing method of the reinforcement cage, the protective layer cushion block is a reinforced concrete prefabricated cushion block.
Preferably, in the method for manufacturing a reinforcement cage, the step 4) specifically includes the steps of:
41) screwing the sleeve on joints with long screw thread lengths of the steel bars, and marking the steel bars at two ends of one joint by painting;
42) screwing a protective cover on the sleeve, and sleeving a protective cap on a joint with a short screw thread length of the steel bar;
43) and aligning two steel bars with marks, descending the upper section of the steel bar cage to enable the joint of the upper section of the steel bar cage to be in contact with the joint of the lower section of the steel bar cage, removing the protective cap, and rotating the sleeve to realize the connection of the joint of the upper section of the steel bar cage and the joint of the lower section of the steel bar cage.
According to the technical scheme, the upsetting operation is carried out on the two joints of the steel bar so as to improve the yield strength and the ultimate strength of the two joints of the steel bar. The adjacent reinforcement cages are connected through the threaded connection sleeve on the connectors of the reinforced bars after upsetting, the connection of the reinforced bars corresponding to the upper and lower sections of reinforcement cages is realized through the sleeve, the strength of the connectors of the reinforced bars is improved, the strength of the connecting positions of the upper and lower sections of reinforcement cages is correspondingly improved, and the purpose of improving the overall strength of the reinforcement cages is finally achieved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a reinforcement cage according to an embodiment of the present invention;
fig. 2 is a flowchart of a reinforcement cage manufacturing method according to an embodiment of the present invention;
fig. 3 is a flow chart of upsetting reinforcing bars according to an embodiment of the present invention;
FIG. 4 is a flow chart of processing a filament end according to an embodiment of the present invention;
FIG. 5 is a flow chart of a sectional fabrication of a reinforcement cage according to an embodiment of the present invention;
fig. 6 is a flow chart of the connection of adjacent reinforcement cages according to an embodiment of the present invention.
1. And (5) reinforcing steel bars, 2, stirrups.
Detailed Description
The invention discloses a method for manufacturing a reinforcement cage, which aims to improve the overall strength of the reinforcement cage.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Please refer to fig. 1-6.
The invention discloses a method for manufacturing a reinforcement cage, which comprises the following steps:
1) sequentially upsetting two joints of the steel bar 1;
2) sequentially processing thread heads at two joints of the steel bar 1;
3) manufacturing a reinforcement cage by sections of the reinforcement 1 in the step 2);
4) sequentially connecting the reinforcement cages manufactured in the step 3).
Upsetting of two joints of the steel bar 1 in the step 1) is mainly performed by a cold heading process.
The diameters of the two joints of the steel bar 1 are enlarged through a cold heading process, and meanwhile, after the two joints of the steel bar 1 are subjected to cold heading, the yield strength and the ultimate strength of the joints of the steel bar 1 are improved to some extent, so that the strength of the joints of the steel bar 1 is higher than that of a base material of the steel bar 1.
And step 2) processing a screw head at the joint of the steel bar 1 to realize the threaded connection between the joint of the steel bar 1 and the sleeve.
The lengths of the thread ends processed by the two joints of the steel bar 1 are unequal. Specifically, the length of the processed thread end at the first end of the steel bar 1 is at least the length of the sleeve, and the length of the processed thread end at the second end of the steel bar 1 is at least half of the length of the sleeve.
And 3) manufacturing a reinforcement cage on the reinforcement 1 processed in the step 2).
And 4) connecting the plurality of reinforcement cages manufactured in the step 3), and finishing the manufacturing of the reinforcement cages.
Through the manufacturing method of the reinforcement cage disclosed by the scheme, upsetting operation is carried out on the two joints of the reinforcement 1 so as to improve the yield strength and the ultimate strength of the two joints of the reinforcement 1. The connection of adjacent steel reinforcement cages is specifically that the sleeve is in threaded connection on the joint of the steel reinforcement 1 after upsetting, the connection of the steel reinforcement 1 corresponding to the positions of the upper and lower steel reinforcement cages is realized through the sleeve, and because the strength of the joint of the steel reinforcement 1 is improved, the strength of the connecting position of the upper and lower steel reinforcement cages is correspondingly improved, and the purpose of improving the overall strength of the steel reinforcement cages is finally achieved.
In a specific embodiment of the present disclosure, step 1) specifically includes the steps of:
11) sequentially polishing two joints of the steel bar 1 until the plane where the joints of the steel bar 1 are located is flat;
12) and (3) upsetting the two joints of the steel bar 1 by using an upsetting machine in sequence until the diameter of the two joints of the steel bar 1 is at least 10mm larger than that of the parent body of the steel bar 1.
And step 11), polishing the joint plane of the steel bar 1 by using a grinding wheel cutting machine or a polishing machine.
Before step 12), the upsetting machine needs to be debugged, and the pressing die corresponding to the specification of the steel bar 1 needs to be replaced.
Preferably, the diameter of the end portion of the reinforcing bar 1 after upsetting is required to satisfy the base circle of the base material of the reinforcing bar 1 that is not damaged when the end portion is processed.
Preferably, the two joints of the steel bar 1 have a diameter at least 10mm larger than that of the base material of the steel bar 1.
In one embodiment of the present invention, the diameter of the base material of the reinforcing bar 1 is 20mm, and the diameter of the end of the reinforcing bar 1 is increased to 32mm after upsetting.
Here, after the end of the reinforcing bar 1 is upset, it is necessary to check whether or not there is a crack in the upset portion of the reinforcing bar 1.
The step 2) specifically comprises the following steps:
21) machining a first thread with the length at least equal to the length of a sleeve on one of the two joints of the steel bar 1, and machining a second thread with the length at least equal to half of the length of the sleeve on the other joint of the two joints of the steel bar 1;
22) and checking whether the first thread and the second thread are qualified or not through a ring and a no-go gauge.
The thread end processing equipment needs to be debugged before the step 21) is carried out. The thread head processing equipment is generally a roller press or a threading machine.
Step 22) is a step of checking whether the thread ends are qualified. The special ring go-no go gauge is used for inspection, the go gauge can smoothly pass through effective screw threads, and the screw-in of the no go gauge cannot exceed three threads.
The step 3) specifically comprises the following steps:
31) calculating the length of the material used for the stirrup 2;
32) manufacturing stirrups 2 on a reinforcing steel bar 1 ring manufacturing platform and welding according to requirements;
33) placing the support frames on the same straight line of the same horizontal plane at intervals of 2-3 m, and then placing the steel bars 1 in the step 1) on the support frames straightly;
34) sleeving the stirrup 2 into the steel bar 1 or sleeving the steel bar 1 into the stirrup 2 according to the design requirement, wherein the stirrup 2 is vertical to the steel bar 1, and the steel bar 1 and the stirrup 2 are connected in a spot welding or binding manner;
35) winding spiral ribs at specified intervals on a structure formed by connecting the steel bar 1 and the stirrup 2, and binding the spiral ribs through thin iron wires and fixing the spiral ribs at intervals by spot welding;
36) and welding or binding a protective layer cushion block.
The thickness of the protective layer cushion block is generally 6-8 cm. The protective layer cushion block can be a concrete prefabricated cushion block of a steel bar 1 or a steel bar 1 'ear', the diameter of the steel bar 1 'ear' is not less than 10mm, the length is not less than 15cm, the height is not less than 8cm, and the protective layer cushion block is welded on the outer side of the steel bar 1.
In the step 34), the joints of the adjacent steel bars 1 are distributed at intervals in a staggered manner along the axis direction of the steel bars 1, the staggered length is not more than 50cm, and the number of the joints of the steel bars 1 in the section of the steel bar cage perpendicular to the axis of the steel bar cage is not more than 50% of the total number of the steel bars 1.
The step 4) specifically comprises the following steps:
41) screwing the sleeve on joints with long screw thread lengths of the steel bars 1, and marking the steel bars 1 at two ends of one joint by paint;
42) screwing a protective cover on the sleeve, and sleeving a protective cap on a joint with a short screw thread length of the steel bar 1;
43) and aligning two steel bars 1 with marks, descending the upper section of steel bar cage to the contact of the upper section of steel bar cage and the steel bars 1 of the lower section of steel bar cage, removing the protective cap, and rotating the sleeve to realize the connection of the joints of the upper section of steel bar cage and the lower section of steel bar cage.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. A reinforcement cage manufacturing method is characterized by comprising the following steps:
1) upsetting two joints of the steel bar (1) in sequence;
2) sequentially processing thread heads at two joints of the steel bar (1);
3) manufacturing a plurality of reinforcement cages by sections of the reinforcement (1) in the step 2);
4) sequentially connecting the plurality of reinforcement cages manufactured in the step 3).
2. A reinforcement cage manufacturing method according to claim 1, wherein the step 1) specifically comprises the steps of:
11) sequentially polishing two joints of the steel bar (1) until the plane where the joints of the steel bar (1) are located is flat;
12) and sequentially upsetting the two joints of the steel bar (1) by using an upsetting machine until the diameter of the two joints of the steel bar (1) is at least 10mm larger than that of the parent body of the steel bar (1).
3. A reinforcement cage manufacturing method according to claim 1, wherein the step 2) specifically comprises the steps of:
21) machining a first thread with the length being at least the length of a sleeve on one of the two joints of the steel bar (1), and machining a second thread with the length being at least half of the length of the sleeve on the other joint of the two joints of the steel bar (1);
22) and checking whether the first thread and the second thread are qualified or not through a ring-pass no-go gauge.
4. A reinforcement cage manufacturing method according to claim 1, wherein the step 3) specifically comprises the steps of:
31) calculating the length of the material of the stirrup (2);
32) manufacturing the stirrups (2) on a reinforcing steel bar (1) ring manufacturing platform and welding according to requirements;
33) placing the support frames on the same straight line of the same horizontal plane at intervals of 2-3 m, and then placing the steel bars (1) in the step 1) on the support frames straightly;
34) sleeving the stirrups (2) into the reinforcing steel bars (1) according to the design requirement or sleeving the reinforcing steel bars (1) into the stirrups (2), wherein the stirrups (2) are perpendicular to the reinforcing steel bars (1), and the reinforcing steel bars (1) are in spot welding or binding connection with the stirrups (2);
35) spiral ribs are wound at specified intervals on a structure formed by connecting the reinforcing steel bars (1) and the stirrups (2), and the spiral ribs are bound by thin iron wires and fixed at intervals by spot welding;
36) and welding or binding a protective layer cushion block.
5. The method for manufacturing a reinforcement cage according to claim 4, wherein the thickness of the protective layer spacer in the step 36) is 6-8 cm.
6. A method for manufacturing a reinforcement cage according to claim 5, wherein the protective layer spacer is a concrete precast spacer for the reinforcement (1).
7. A reinforcement cage manufacturing method according to claim 1, wherein the step 4) specifically comprises the steps of:
41) screwing the sleeve on joints with long threaded length of the steel bars (1), and marking the steel bars (1) at two ends of one joint by painting;
42) screwing a protective cover on the sleeve, and sleeving a protective cap on a joint with a short screw thread length of the steel bar (1);
43) and aligning two steel bars (1) with marks, descending the upper section of the steel bar cage to enable the joint of the upper section of the steel bar cage to be in contact with the joint of the lower section of the steel bar cage, removing the protective cap, and rotating the sleeve to realize the connection of the joint of the upper section of the steel bar cage and the joint of the lower section of the steel bar cage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110667530.1A CN113245482A (en) | 2021-06-16 | 2021-06-16 | Method for manufacturing reinforcement cage |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110667530.1A CN113245482A (en) | 2021-06-16 | 2021-06-16 | Method for manufacturing reinforcement cage |
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| CN113245482A true CN113245482A (en) | 2021-08-13 |
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| CN202110667530.1A Pending CN113245482A (en) | 2021-06-16 | 2021-06-16 | Method for manufacturing reinforcement cage |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114472763A (en) * | 2022-01-07 | 2022-05-13 | 中铁二十二局集团轨道工程有限公司 | Construction method for connecting main reinforcement straight threaded sleeves of underground continuous wall |
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|---|---|---|---|---|
| JPS6092514A (en) * | 1983-10-24 | 1985-05-24 | Ohbayashigumi Ltd | Underground continuous wall work |
| JP2006226064A (en) * | 2005-02-21 | 2006-08-31 | Geotop Corp | Pile construction method and pile structure |
| CN101886386A (en) * | 2010-07-10 | 2010-11-17 | 中铁六局集团有限公司 | Construction method for jointing of steel reinforcement cages of reinforced concrete drilling bored concrete pile |
| CN101967825A (en) * | 2010-09-15 | 2011-02-09 | 中铁四局集团第五工程有限公司 | Reinforcement cage and manufacturing method thereof |
| CN206346188U (en) * | 2016-11-30 | 2017-07-21 | 安徽省公路桥梁工程有限公司 | A kind of steel reinforcement cage |
| CN208219631U (en) * | 2018-04-11 | 2018-12-11 | 中建七局第四建筑有限公司 | A kind of borehole filling pile cage of reinforcement protection structure |
| CN209244103U (en) * | 2018-12-08 | 2019-08-13 | 上海宝冶集团有限公司 | A kind of steel bar cage protecting layer protective device |
| CN212714913U (en) * | 2020-07-09 | 2021-03-16 | 中建四局第一建筑工程有限公司 | Super-large-diameter cast-in-place pile double-layer reinforcement cage with embedded pipe |
-
2021
- 2021-06-16 CN CN202110667530.1A patent/CN113245482A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6092514A (en) * | 1983-10-24 | 1985-05-24 | Ohbayashigumi Ltd | Underground continuous wall work |
| JP2006226064A (en) * | 2005-02-21 | 2006-08-31 | Geotop Corp | Pile construction method and pile structure |
| CN101886386A (en) * | 2010-07-10 | 2010-11-17 | 中铁六局集团有限公司 | Construction method for jointing of steel reinforcement cages of reinforced concrete drilling bored concrete pile |
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| CN206346188U (en) * | 2016-11-30 | 2017-07-21 | 安徽省公路桥梁工程有限公司 | A kind of steel reinforcement cage |
| CN208219631U (en) * | 2018-04-11 | 2018-12-11 | 中建七局第四建筑有限公司 | A kind of borehole filling pile cage of reinforcement protection structure |
| CN209244103U (en) * | 2018-12-08 | 2019-08-13 | 上海宝冶集团有限公司 | A kind of steel bar cage protecting layer protective device |
| CN212714913U (en) * | 2020-07-09 | 2021-03-16 | 中建四局第一建筑工程有限公司 | Super-large-diameter cast-in-place pile double-layer reinforcement cage with embedded pipe |
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| Title |
|---|
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114472763A (en) * | 2022-01-07 | 2022-05-13 | 中铁二十二局集团轨道工程有限公司 | Construction method for connecting main reinforcement straight threaded sleeves of underground continuous wall |
| CN114472763B (en) * | 2022-01-07 | 2023-09-08 | 中铁二十二局集团轨道工程有限公司 | Construction method for connecting main rib straight thread sleeve of underground diaphragm wall |
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