CN115977260A - L-shaped lug plate type anchoring connection device for stay cable structure and use method thereof - Google Patents
L-shaped lug plate type anchoring connection device for stay cable structure and use method thereof Download PDFInfo
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- CN115977260A CN115977260A CN202211350027.4A CN202211350027A CN115977260A CN 115977260 A CN115977260 A CN 115977260A CN 202211350027 A CN202211350027 A CN 202211350027A CN 115977260 A CN115977260 A CN 115977260A
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- 238000004873 anchoring Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims description 7
- 238000003466 welding Methods 0.000 claims abstract description 19
- 230000007704 transition Effects 0.000 claims abstract description 15
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 8
- 239000010959 steel Substances 0.000 claims abstract description 8
- 239000002131 composite material Substances 0.000 claims abstract 2
- 238000009434 installation Methods 0.000 abstract description 5
- 238000005728 strengthening Methods 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 description 4
- 239000012528 membrane Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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Abstract
The invention relates to an L-shaped ear plate type anchoring connecting device for a stayed cable structure; the composite steel plate comprises a rigid structure and a cable, wherein the rigid structure comprises a gusset plate, an L-shaped stiffening plate, a transition column, a beam, a column variable section and a frame beam; the gusset plate is composed of an ear plate of the inhaul cable and a web plate which is rigidly connected, and a pin shaft hole and a tooling hole are formed in the plate surface of the gusset plate; the L-shaped stiffening plates are made of strip steel and are used for strengthening the connection strength among the three node plates and reducing the weight of a node area; the transition beam is used for avoiding stress concentration between the connecting plate and the frame beam; the beam and column variable cross-section sections are used for structural stress members which are additionally arranged when the sizes of the main structure and the node area are different. According to the connecting device provided by the invention, the joint main body structure is assembled and welded in a factory, and boring is carried out to ensure the concentricity of the three-plate pin shaft hole. Therefore, the welding quality of the main structure of the node is ensured, the efficiency is improved, the structural stress is not influenced, and the installation speed of the on-site node is greatly improved.
Description
Technical Field
The invention relates to the technical field of node construction of steel structure buildings, in particular to an L-shaped lug plate type anchoring connection device for a stay cable structure and a use mode thereof.
Background
The large-span space structure is one of the fastest-developing structure types at present, and the structure forms mainly comprise a grid structure, a reticulated shell structure, a cable membrane structure, a thin shell structure and the like. In which cable membrane structures typically utilize flexible steel cables to pre-stress the membrane to a certain degree, thereby forming a structural system with a certain degree of rigidity that can cover large spaces. For the connection node of the cable membrane structure, the anchoring connection between the stay cable and the rigid structure is one of the more critical problems, the force transmission of the beam cable anchoring structure is a more complex area, if the area is improperly designed, the stress concentration phenomenon is easy to occur, and the fatigue failure may occur under the action of long-term static load and dynamic load.
Disclosure of Invention
The invention aims to provide an L-shaped ear plate type anchoring connection device applied to a stay cable structure, the ear plate type anchoring connection node is convenient to prefabricate and install, and force transmission of a stay cable meets the stress requirement.
In order to achieve the above object, the present invention is realized by:
the L-shaped ear plate type anchoring and connecting device for the stayed-cable structure comprises a rigid structure and a cable, wherein the rigid structure comprises a gusset plate, an L-shaped stiffening plate, a transition column, a beam, a column variable section and a frame beam; the gusset plate is composed of an ear plate of the inhaul cable and a web plate which is rigidly connected, and a pin shaft hole and a tooling hole are formed in the plate surface of the gusset plate; the L-shaped stiffening plates are made of strip steel and are used for strengthening the connection strength among the three node plates and reducing the weight of a node area; the transition beam is used for avoiding stress concentration between the connecting plate and the frame beam; the beam and column variable cross-section sections are used for structural stress members which are additionally arranged when the sizes of the main structure and the node area are different.
The application method of the L-shaped ear plate type anchoring connection device for the stayed-cable structure,
step 1, all connecting pieces are processed in a factory in advance;
step 2, after the size of the gusset plate is determined, pin shaft holes are required to be processed, and the concentricity of the pin shaft holes of the three plates is ensured;
step 3, welding the gusset plate and the L-shaped stiffening plate;
step 4, welding the transition beam and the connecting plate;
step 5, welding the variable-section beam and the transition beam;
step 6, welding the frame beam and the variable cross-section beam;
and 7, after the integral structure is installed, performing cable-threading anchoring and tensioning.
The invention provides a universal stay cable lug plate type anchoring connection node convenient for assembly and welding. The main structure of the node is assembled and welded in a factory, and the concentricity of the three-plate pin shaft hole is ensured by boring. Therefore, the welding quality of the main structure of the node is ensured, the efficiency is improved, the structural stress is not influenced, and the installation speed of the on-site node is greatly improved. This node passes through the otic placode and realizes being connected between cable and the beam column, for convenient field installation and avoid the structure stress concentration problem to appear, considers the otic placode with the cable and the web of rigid structure as an integral gusset plate, and the scene only needs to splice, dress and weld complete connecting piece tip and structural beam with mill and weld. The connecting structure can solve the problem of smooth force transmission of the stay cable, and directly transmits the cable force of the stay cable to the main structural beam through the connecting piece.
Drawings
Fig. 1 is a schematic structural diagram of a gusset plate in the connecting device.
Fig. 2 is a schematic structural view of an "L" -shaped stiffening plate in the present connection device.
Fig. 3 is a schematic structural view of a transition beam and a transition column in the connecting device.
Fig. 4 is a schematic structural diagram of a beam and column variable cross-section in the connecting device.
Fig. 5 is a schematic structural view of a frame beam and a frame column in the connecting device.
Fig. 6 is a diagram illustrating a node assembling process in the present connection apparatus.
Detailed Description
The invention is further illustrated by the following specific examples.
As shown in fig. 1 to 6, an L-shaped ear plate type anchoring connection device for a cable-stayed structure comprises a rigid structure and a cable, wherein the rigid structure comprises a gusset plate, an "L" -shaped stiffening plate, a transition column, a beam, a column variable cross-section and a frame beam; the gusset plate is composed of an ear plate of the inhaul cable and a web plate which is rigidly connected, and a pin shaft hole and a tooling hole are formed in the plate surface of the gusset plate; the L-shaped stiffening plates are made of strip steel and are used for strengthening the connection strength among the three node plates and reducing the weight of a node area; the transition beam is used for avoiding stress concentration between the connecting plate and the frame beam; the beam and column variable cross-section sections are used for structural stress members which are additionally arranged when the sizes of the main structure and the node area are different.
The application method of the L-shaped ear plate type anchoring connection device for the stayed-cable structure,
step 1, all connecting pieces are processed in a factory in advance;
step 2, after the size of the gusset plate is determined, pin shaft holes are required to be processed, and the concentricity of the pin shaft holes of the three plates is ensured;
step 3, welding the gusset plate and the L-shaped stiffening plate;
step 4, welding the transition beam and the connecting plate;
step 5, welding the variable-section beam and the transition beam;
step 6, welding the frame beam and the variable-section beam;
and 7, after the integral structure is installed, performing cable-threading anchoring and tensioning.
At present, the types of large-size lug plate type anchoring nodes are fewer, and the connecting device provides convenience for application and popularization of the stay cable in the large-span multilayer steel frame structure column corner node. The connecting device not only ensures the structural strength of the beam column, but also solves the problem of connection between the cable body and the structural member, and ensures the stability of the node. The force transmission path meets the stress requirement: the stay cable force is transmitted to the pin shaft through the anchor head, the pin shaft is transmitted to the gusset plate through the pin shaft hole, and the gusset plate is transmitted to the main body structure through the connecting welding seam.
The invention comprehensively considers the factors, the main structure of the node is assembled and welded in a factory, and the three-plate pin shaft hole concentricity is ensured by boring. Therefore, the welding quality of the main structure of the node is ensured, the efficiency is improved, the structural stress is not influenced, and the installation speed of the on-site node is greatly improved. This node passes through the otic placode and realizes being connected between cable and the beam column, for convenient on-the-spot installation and avoid the structure stress concentration problem to appear, considers the connecting plate with the cable and the integral gusset plate of structure web as, and the scene only needs to weld the complete connecting piece tip of mill's concatenation welding and structure roof beam, can solve passing power of cable. And transmitting the cable force of the inhaul cable to the structural beam through the connecting piece.
Claims (2)
1. The utility model provides a L shape otic placode formula anchor connecting device for stayed-cable structure, characterized by: the composite steel plate comprises a rigid structure and a cable, wherein the rigid structure comprises a gusset plate, an L-shaped stiffening plate, a transition column, a beam, a column variable section and a frame beam; the number and the angle of the cables are determined according to the design and are connected with the reserved holes of the rigid structure through pin shafts, and the components of the rigid structure are processed in a factory in a welding mode.
2. The method of using the L-shaped ear plate type anchoring connection device for the stayed-cable structure according to claim 1, wherein the method comprises the following steps:
step 1, all connecting pieces are processed in a factory in advance;
step 2, after the size of the gusset plate is determined, pin shaft holes are required to be processed, and the concentricity of the pin shaft holes of the three plates is ensured;
step 3, welding the gusset plate and the L-shaped stiffening plate;
step 4, welding the transition beam and the connecting plate;
step 5, welding the variable-section beam and the transition beam;
step 6, welding the frame beam and the variable-section beam;
and 7, after the integral structure is installed, performing cable-threading anchoring and tensioning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211350027.4A CN115977260A (en) | 2022-10-31 | 2022-10-31 | L-shaped lug plate type anchoring connection device for stay cable structure and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211350027.4A CN115977260A (en) | 2022-10-31 | 2022-10-31 | L-shaped lug plate type anchoring connection device for stay cable structure and use method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN115977260A true CN115977260A (en) | 2023-04-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211350027.4A Pending CN115977260A (en) | 2022-10-31 | 2022-10-31 | L-shaped lug plate type anchoring connection device for stay cable structure and use method thereof |
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| Country | Link |
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| CN (1) | CN115977260A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1001089A1 (en) * | 1998-10-15 | 2000-05-17 | Yincheng Hou | Novel technique for stay cable system |
| US20040134141A1 (en) * | 2001-05-10 | 2004-07-15 | Sven Hebbelinck | Flexible tensioned structure and method of calculating such a structure |
| US20150178411A1 (en) * | 2012-06-18 | 2015-06-25 | China Aviation Planning And Construction Development Co., Ltd. | Asymmetric cable-membrane tensegrity structure of opening type, method of constructing the same and method of designing the same |
| CN105297890A (en) * | 2015-11-26 | 2016-02-03 | 沈阳建筑大学 | Anchor connection node for buckling-restrained brace and concrete beam-column steel angles |
| CN206925780U (en) * | 2017-04-22 | 2018-01-26 | 上海海勃膜结构股份有限公司 | A kind of fixed boundary Membrane of Tensile Buildings corner gusset plate auxiliary mounting tool |
| CN207003655U (en) * | 2017-06-12 | 2018-02-13 | 上海海勃膜结构股份有限公司 | A kind of membrane structure border cable stretching node |
| CN207003669U (en) * | 2017-05-16 | 2018-02-13 | 上海海勃膜结构股份有限公司 | A kind of beam-ends fixes rope film node connection equipment |
| CN207296001U (en) * | 2017-05-16 | 2018-05-01 | 上海海勃膜结构股份有限公司 | A kind of flexible boundary rope film node tensioning equipment |
| CN108004911A (en) * | 2018-01-19 | 2018-05-08 | 郑州市交通规划勘察设计研究院 | Chamfering strengthens rigid frame formula steel diaphragm plate and its construction method |
| CN214696102U (en) * | 2020-11-25 | 2021-11-12 | 广州市越宏膜结构工程有限公司 | Structural member for anchoring single-layer ETFE (ethylene-vinyl acetate) membrane corner |
-
2022
- 2022-10-31 CN CN202211350027.4A patent/CN115977260A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1001089A1 (en) * | 1998-10-15 | 2000-05-17 | Yincheng Hou | Novel technique for stay cable system |
| US20040134141A1 (en) * | 2001-05-10 | 2004-07-15 | Sven Hebbelinck | Flexible tensioned structure and method of calculating such a structure |
| US20150178411A1 (en) * | 2012-06-18 | 2015-06-25 | China Aviation Planning And Construction Development Co., Ltd. | Asymmetric cable-membrane tensegrity structure of opening type, method of constructing the same and method of designing the same |
| CN105297890A (en) * | 2015-11-26 | 2016-02-03 | 沈阳建筑大学 | Anchor connection node for buckling-restrained brace and concrete beam-column steel angles |
| CN206925780U (en) * | 2017-04-22 | 2018-01-26 | 上海海勃膜结构股份有限公司 | A kind of fixed boundary Membrane of Tensile Buildings corner gusset plate auxiliary mounting tool |
| CN207003669U (en) * | 2017-05-16 | 2018-02-13 | 上海海勃膜结构股份有限公司 | A kind of beam-ends fixes rope film node connection equipment |
| CN207296001U (en) * | 2017-05-16 | 2018-05-01 | 上海海勃膜结构股份有限公司 | A kind of flexible boundary rope film node tensioning equipment |
| CN207003655U (en) * | 2017-06-12 | 2018-02-13 | 上海海勃膜结构股份有限公司 | A kind of membrane structure border cable stretching node |
| CN108004911A (en) * | 2018-01-19 | 2018-05-08 | 郑州市交通规划勘察设计研究院 | Chamfering strengthens rigid frame formula steel diaphragm plate and its construction method |
| CN214696102U (en) * | 2020-11-25 | 2021-11-12 | 广州市越宏膜结构工程有限公司 | Structural member for anchoring single-layer ETFE (ethylene-vinyl acetate) membrane corner |
Non-Patent Citations (1)
| Title |
|---|
| 赵鹏飞, 郝成新, 钱基宏, 宋涛, 赵基达, 张维帋, 翟彬: "浙江省黄龙体育中心主体育场斜拉索锚固节点模型试验研究", 建筑结构学报, no. 03, 30 May 2001 (2001-05-30), pages 70 - 74 * |
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