CN107035391B - Connecting device of lock angle steel pipe and steel frame - Google Patents
Connecting device of lock angle steel pipe and steel frame Download PDFInfo
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- CN107035391B CN107035391B CN201710366617.9A CN201710366617A CN107035391B CN 107035391 B CN107035391 B CN 107035391B CN 201710366617 A CN201710366617 A CN 201710366617A CN 107035391 B CN107035391 B CN 107035391B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 142
- 239000010959 steel Substances 0.000 title claims abstract description 142
- 238000003466 welding Methods 0.000 claims abstract description 21
- 238000005553 drilling Methods 0.000 claims description 5
- 239000011435 rock Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 1
- 238000010276 construction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/14—Lining predominantly with metal
- E21D11/18—Arch members ; Network made of arch members ; Ring elements; Polygon elements; Polygon elements inside arches
- E21D11/22—Clamps or other yieldable means for interconnecting adjacent arch members either rigidly, or allowing arch member parts to slide when subjected to excessive pressure
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- Engineering & Computer Science (AREA)
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- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
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- Joining Of Building Structures In Genera (AREA)
Abstract
The invention belongs to the field of part connection in civil engineering, and particularly relates to a connecting device for a lock angle steel pipe and a steel frame, which comprises a first connecting part and a second connecting part, wherein the first connecting part is integrally in a U-shaped structure, penetrates through a through hole in the steel frame and is fixedly connected with the through hole, the through hole is positioned in the middle of the first connecting part, the second connecting part is in a cylindrical structure with holes at two ends, one end of the second connecting part is sleeved outside the end part of the first connecting part, the other end of the second connecting part is sleeved outside the exposed end of the lock angle steel pipe, and internal threads are arranged in the second connecting part and matched with external threads of the first connecting part and the lock. The connecting device can effectively connect the angle locking steel pipe and the steel frame, reduces the influence of the welding technical level of workers on the integrity of the steel frame and the steel frame, can obviously improve the stability and the foot locking efficiency of the foot locking steel pipe, and achieves the aims of controlling vault sinking and horizontal convergence.
Description
Technical Field
The invention belongs to the field of part connection in civil engineering, and particularly relates to a device for connecting a lock angle steel pipe and a steel frame, which can improve the action efficiency of a lock leg steel pipe and simultaneously control vault sinking and horizontal convergence to the maximum extent.
Background
At present, when the excavation operation of tunnel engineering is implemented, an important link in various construction methods is a locking angle steel pipe. At present, the common method is that the lock angle anchor pipe is installed and fed by adopting an air pick or hammering, and the end of the lock angle anchor pipe is firmly welded with the arch angle of the profile steel arch frame. And the welding quality of technical workers determines the functions of the angle locking steel pipe on the sinking and horizontal convergence of the arch crown of the tunnel. Based on this, the existing installation method of the lock angle anchor pipe has the following defects and shortcomings: (1) the welding technology of the technical workers is uneven, so that the condition of infirm welding can occur, and the connection between the steel pipe and the steel frame is unstable; (2) when the welding is not firm, the lock angle and the steel frame cannot form a whole, the vault sinking and the horizontal convergence effect are controlled to be unobvious through the lock angle, and (3) a large amount of welding is needed for connection, so that the lock angle is low in efficiency.
Due to the defects and shortcomings, further improvement and improvement are urgently needed in the field, and a connecting device is designed to avoid unstable locking angles and low efficiency caused by uneven welding technology of workers so as to meet the requirements of locking angle steel pipes in projects such as tunnel excavation and the like.
Disclosure of Invention
Aiming at the defects or the improvement requirements in the prior art, the invention provides a connecting device for a lock angle steel pipe and a steel frame, which adopts a mode of drilling a steel frame, then uses a deformed steel bar to pass through the steel frame, adopts a bolt and a gasket for reinforcement after welding in the middle, and finally adopts a similar steel bar sleeve to connect a lock foot steel pipe and the deformed steel bar, thereby reducing the influence of the welding technical level of workers on the integrity of the lock foot steel pipe and the steel frame, improving the action efficiency of the lock foot steel pipe and simultaneously controlling the vault sinking and horizontal convergence to the maximum extent.
In order to achieve the above object, according to one aspect of the present invention, there is provided a device for connecting a steel frame and a steel angle locking pipe, comprising a first connecting portion and a second connecting portion,
wherein the first connecting part is of a U-shaped structure as a whole, a through hole is arranged on the steel frame, the first connecting part passes through the through hole and is fixedly connected with the through hole, the through hole is positioned in the middle of the first connecting part,
one end of the lock angle steel pipe is exposed, the two ends of the first connecting portion are connected with the exposed end of the lock angle steel pipe through second connecting portions respectively, the second connecting portions are of a cylindrical structure with holes at the two ends, one end of each second connecting portion is sleeved outside the end portion of the first connecting portion, the other end of each second connecting portion is sleeved outside the exposed end of the lock angle steel pipe, external threads are arranged at the two ends of the first connecting portion and the exposed end of the lock angle steel pipe, internal threads are arranged inside the second connecting portions and matched with the external threads of the first connecting portions and the lock angle steel pipe, and fixed connection is achieved.
Specifically, the steelframe can be effectively locked through the first connecting portion of U type, can avoid the welding inefficacy that workman welding technique discrepancy brought, reduce effectively because the welding not firm the condition of taking place to connect position and steelframe separation, and through second connecting portion with first connecting portion and lock angle steel pipe threaded connection, can be with lock angle steel pipe and first connecting portion zonulae occludens, and then with the steelframe firm connection, and because the lock angle steel pipe of different sizes and shapes can be used to U type connecting portion, wide suitability has. And the threaded connection can be quickly connected, so that the corner locking efficiency is improved. The connecting device adopting the structure can effectively connect the lock angle steel pipe and the steel frame, improve the stability of the lock leg steel pipe, obviously improve the lock leg efficiency and realize the purposes of controlling vault sinking and horizontal convergence.
Further preferably, after the first connecting portion passes through the through hole of the steel frame, the first connecting portion is fixedly connected with the steel frame at the through hole in a welding mode. Through welded mode with steelframe and first connecting portion zonulae occludens, can avoid first connecting portion to slide in the steelframe, realize firm connection.
Preferably, bolts and washers are respectively disposed at both sides of the through-holes to reinforce the first connection portion. More comparative tests show that the first connecting portion can be further firmly connected with the steel frame by the bolts and the gaskets, the failure of the locking steel tube caused by the fact that technical workers are not firmly welded in construction can be avoided by the aid of the bolt gaskets and the like, the locking feet are controlled, the bolt connection anti-seismic performance is better, and vault sinking and horizontal convergence can be effectively controlled.
Preferably, the first connecting portion is different from the lock angle steel pipe in diameter, and the inner diameters of the two ends of the second connecting portion are respectively matched with the diameters of the first connecting portion and the lock angle steel pipe. More comparative tests show that the inner diameter of the second connecting part is matched with the first connecting part and the lock angle steel pipe, so that the second connecting part and the lock angle steel pipe can be tightly and firmly connected, a good anti-seismic effect is achieved, and the stability of the lock angle is improved.
Preferably, the first connecting part is a twisted steel bar, and the second connecting part is a steel sleeve. The reinforcing steel bar material has higher strength, and can prolong the service life of the connecting device as a connecting material, thereby improving the stability of the lock corner.
Generally, compared with the prior art, the technical scheme of the invention has the following advantages and beneficial effects:
(1) according to the connecting device, the steel frame is drilled, the threaded steel bar penetrates through the steel frame, the middle of the steel frame is welded and then is reinforced by the bolt and the washer, and finally the similar steel bar sleeve is adopted to connect the foot locking steel pipe and the threaded steel bar, so that the influence of the welding technology level of workers on the integrity of the foot locking steel pipe and the steel frame is reduced, the vault sinking and the horizontal convergence can be controlled to the maximum extent while the action efficiency of the foot locking steel pipe is improved.
(2) The steel frame can be effectively locked by the first connecting portion of the U-shaped connecting portion, welding failure caused by uneven welding technology of workers can be avoided, the situation that the connecting portion is separated from the steel frame due to infirm welding is effectively reduced, the first connecting portion and the lock angle steel pipe are in threaded connection through the second connecting portion, the lock angle steel pipe can be tightly connected with the first connecting portion, and further the lock angle steel pipe can be firmly connected with the steel frame, the U-shaped connecting portion can use the lock angle steel pipes with different sizes and shapes, and the steel frame locking device has wide applicability. And the threaded connection can be quickly connected, so that the corner locking efficiency is improved. The connecting device adopting the structure can effectively connect the lock angle steel pipe and the steel frame, improve the stability of the lock leg steel pipe, obviously improve the lock leg efficiency and realize the purposes of controlling vault sinking and horizontal convergence.
(3) Through welded mode with steelframe and first connecting portion zonulae occludens, can avoid first connecting portion to slide in the steelframe, realize firm connection. Adopt bolt and packing ring can further firmly be connected first connecting portion and steelframe, utilize bolt packing ring etc. can also avoid technical worker's welding insecure to cause the lock foot steel pipe to become invalid in the construction, realize having accuse lock foot, adopt bolted connection anti-seismic performance better moreover, can effectively control the vault and sink and the level convergence.
(4) Through the internal diameter with the second connecting portion and match with first connecting portion and lock angle steel pipe, can closely firmly connect the two, and have good antidetonation effect, improve the stability of lock angle. The reinforcing steel bar material has higher strength, and can prolong the service life of the connecting device as a connecting material, thereby improving the stability of the lock corner.
(5) The connecting device disclosed by the invention is simple in structure, easy to obtain, low in cost, simple to install, good in connecting effect, high in stability and suitable for large-scale popularization and use.
Drawings
FIG. 1 is a front view of the connecting device for steel frame and steel lock leg of the present invention;
FIG. 2 is a side view of the connecting device for steel frame and steel locking leg of the present invention;
fig. 3(a) - (c) are detailed views of the steel tube with locking pin and the connecting sleeve of the U-shaped threaded steel bar.
The same reference numbers will be used throughout the drawings to refer to the same or like elements or structures, wherein:
the steel frame comprises 1-a steel frame, 2-a first connecting part, 3-a locking angle steel pipe, 4-a second connecting part, 5-a bolt and 6-a gasket.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
As shown in fig. 1, fig. 2 and fig. 3(a) - (c), which are structural views of the device for connecting a steel frame and a steel angle locking pipe according to the present invention, as shown in the figure, it includes a first connecting part 2 and a second connecting part 4,
wherein the first connecting part 2 is of a U-shaped structure as a whole, a through hole is arranged on the steel frame 1, the first connecting part 2 passes through the through hole and is fixedly connected with the through hole, the through hole is positioned in the middle of the first connecting part 2,
one end of the lock angle steel pipe 3 is exposed, the two ends of the first connecting portion 2 are connected with the exposed ends of the lock angle steel pipe 3 through the second connecting portions 4 respectively, the second connecting portions 4 are of a cylindrical structure with holes at the two ends, one end of each of the second connecting portions is sleeved outside the end portion of the first connecting portion 2, the other end of each of the first connecting portions is sleeved outside the exposed ends of the lock angle steel pipe 3, external threads are arranged at the two ends of the first connecting portions 2 and the exposed ends of the lock angle steel pipe 3, internal threads are arranged inside the second connecting portions 4, and the external threads of the first connecting portions 2 and the external threads of the lock angle steel pipe 3 are.
In an embodiment of the present invention, the first connection portion 2 is fixedly connected to the steel frame 1 by welding at a through hole of the steel frame after passing through the through hole.
In another embodiment of the present invention, a bolt 5 and a washer 6 are respectively disposed at both sides of the through hole to reinforce the first connection portion 2.
In another embodiment of the present invention, the first connecting portion 2 and the corner-locking steel pipe 3 have different diameters, and the inner diameters of both ends of the second connecting portion 4 are respectively matched with the diameters of the first connecting portion 2 and the corner-locking steel pipe 3.
In another embodiment of the invention, the first connection part 2 is a rebar and the second connection part 4 is a steel casing.
To better explain the invention, a specific example is given below:
and (4) drilling holes in the middle of the steel frame by using drilling equipment. Threading two ends of the deformed steel bar and making the deformed steel bar into a U shape, placing bolts and gaskets on two sides in the middle of the steel frame, and then enabling the U-shaped deformed steel bar to pass through the steel frame. And C, enabling the phi 50 lock leg steel pipe subjected to wire hammering and turning to enter a rock stratum and grouting, rotating the U-shaped threaded steel bar according to the position of the lock leg steel pipe to align the lock leg steel pipe, connecting the lock leg steel pipe by using a connecting sleeve, and fixing a bolt and a gasket in the middle of the steel frame. The bolt washer and the like are utilized to avoid the failure of the steel tube of the locking leg caused by the infirm welding of technical workers in construction, and the controlled locking leg is realized to control the sinking and horizontal convergence of the vault.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (1)
1. A connecting device for a lock angle steel pipe and a steel frame is characterized by comprising a first connecting part (2) and a second connecting part (4);
the first connecting part (2) is integrally of a U-shaped structure; firstly, a through hole is formed in a steel frame (1), then the first connecting part (2) penetrates through the through hole and then is fixedly connected with the through hole, and the through hole is located in the middle of the first connecting part (2);
one end of the lock angle steel pipe (3) is exposed, the two ends of the first connecting part (2) are connected with the exposed end of the lock angle steel pipe (3) through second connecting parts (4) respectively, each second connecting part (4) is of a cylindrical structure with holes at the two ends, one end of each second connecting part is sleeved outside the end part of the first connecting part (2), the other end of each second connecting part is sleeved outside the exposed end of the lock angle steel pipe (3), external threads are arranged at the two ends of the first connecting part (2) and the exposed end of the lock angle steel pipe (3), internal threads are arranged inside each second connecting part (4) and matched with the external threads of the first connecting part (2) and the lock angle steel pipe (3), and fixed connection is achieved;
the first connecting part (2) penetrates through the through hole of the steel frame and is fixedly connected with the steel frame (1) at the through hole in a welding mode;
bolts (5) and washers (6) are respectively arranged on two sides of the through holes to reinforce the first connecting part (2);
the diameters of the first connecting part (2) and the lock angle steel pipe (3) are different, and the inner diameters of two ends of the second connecting part (4) are respectively matched with the diameters of the first connecting part (2) and the lock angle steel pipe (3);
the first connecting part (2) is a twisted steel bar, and the second connecting part (4) is a steel sleeve;
drilling holes in the middle of the steel frame by using drilling equipment; threading two ends of the deformed steel bar and manufacturing the deformed steel bar into a U shape, placing bolts and gaskets on two sides of the middle of the steel frame, and then enabling the U-shaped deformed steel bar to pass through the steel frame; and C, enabling the phi 50 lock leg steel pipe subjected to wire hammering and turning to enter a rock stratum and grouting, rotating the U-shaped threaded steel bar according to the position of the lock leg steel pipe to align the lock leg steel pipe, connecting the lock leg steel pipe by using a connecting sleeve, and fixing a bolt and a gasket in the middle of the steel frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710366617.9A CN107035391B (en) | 2017-05-23 | 2017-05-23 | Connecting device of lock angle steel pipe and steel frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710366617.9A CN107035391B (en) | 2017-05-23 | 2017-05-23 | Connecting device of lock angle steel pipe and steel frame |
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| Publication Number | Publication Date |
|---|---|
| CN107035391A CN107035391A (en) | 2017-08-11 |
| CN107035391B true CN107035391B (en) | 2020-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710366617.9A Active CN107035391B (en) | 2017-05-23 | 2017-05-23 | Connecting device of lock angle steel pipe and steel frame |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR102690540B1 (en) * | 2023-11-20 | 2024-08-05 | 포인텍이앤씨(주) | Steel lattice girder for supporting the tunnel excavation surface equipped with reinforcement to improve constructability |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202090934U (en) * | 2011-04-15 | 2011-12-28 | 中铁隧道集团有限公司 | Junction structure of H-shaped steel arch center and feet-lock anchor tubes in tunnel |
| RU123066U1 (en) * | 2010-10-20 | 2012-12-20 | Парвиз Натикбекович Алиев | SHOCK LOCK "AZ" UNDER SUSTAINABILITY METAL FRAME MAGNIFICENT FASTENERS FROM MINING SPECIAL PROFILES |
| CN105507459A (en) * | 2016-01-13 | 2016-04-20 | 天津大学 | Assembled type shear wall upper-layer and lower-layer combined connection structure |
| CN106523004A (en) * | 2016-12-23 | 2017-03-22 | 山东大学 | Rigid-after-flexible feet-lock bolt combined supporting device and installation method |
| CN206143651U (en) * | 2016-10-21 | 2017-05-03 | 山西省交通科学研究院 | Restore structure of reinforced concrete circular tube culvert pipe internode seam fast |
| CN106677805A (en) * | 2016-12-28 | 2017-05-17 | 中铁第四勘察设计院集团有限公司 | Connecting device of tunnel steel frame and locking anchor pipe |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204662938U (en) * | 2015-05-29 | 2015-09-23 | 江苏中南建筑产业集团有限责任公司 | A kind of overhang steel platform fixed end |
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- 2017-05-23 CN CN201710366617.9A patent/CN107035391B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU123066U1 (en) * | 2010-10-20 | 2012-12-20 | Парвиз Натикбекович Алиев | SHOCK LOCK "AZ" UNDER SUSTAINABILITY METAL FRAME MAGNIFICENT FASTENERS FROM MINING SPECIAL PROFILES |
| CN202090934U (en) * | 2011-04-15 | 2011-12-28 | 中铁隧道集团有限公司 | Junction structure of H-shaped steel arch center and feet-lock anchor tubes in tunnel |
| CN105507459A (en) * | 2016-01-13 | 2016-04-20 | 天津大学 | Assembled type shear wall upper-layer and lower-layer combined connection structure |
| CN206143651U (en) * | 2016-10-21 | 2017-05-03 | 山西省交通科学研究院 | Restore structure of reinforced concrete circular tube culvert pipe internode seam fast |
| CN106523004A (en) * | 2016-12-23 | 2017-03-22 | 山东大学 | Rigid-after-flexible feet-lock bolt combined supporting device and installation method |
| CN106677805A (en) * | 2016-12-28 | 2017-05-17 | 中铁第四勘察设计院集团有限公司 | Connecting device of tunnel steel frame and locking anchor pipe |
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| CN107035391A (en) | 2017-08-11 |
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