CN212641215U - Variable cross-section polygonal steel arch internode positioning device - Google Patents
Variable cross-section polygonal steel arch internode positioning device Download PDFInfo
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- CN212641215U CN212641215U CN202020849264.5U CN202020849264U CN212641215U CN 212641215 U CN212641215 U CN 212641215U CN 202020849264 U CN202020849264 U CN 202020849264U CN 212641215 U CN212641215 U CN 212641215U
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Abstract
The utility model provides a variable cross-section polygonal steel arch internode positioning device, which comprises a plurality of first positioning mechanisms and a plurality of second positioning mechanisms, wherein the first positioning mechanisms and the second positioning mechanisms are both arranged at internode connecting parts of polygonal steel arch ribs; the first positioning mechanism comprises a first fixing plate and a second fixing plate which are respectively fixed on two adjacent polygonal steel arch ribs, and a first connecting plate is arranged between the first fixing plate and the second fixing plate; the second positioning mechanism comprises a main top plate and an end plate which are respectively fixed on two adjacent polygonal steel arch ribs, a guide through hole is formed in the end plate, and one end of the main top plate is inserted into the guide through hole. Variable cross section polygon steel encircle internode positioner, two sets of positioning mechanism arrange respectively in top, bottom plate and the left and right sides two lower webs of hexagonal steel arch rib, the combination realizes the quick locate function of internode.
Description
Technical Field
The utility model belongs to the technical field of steel arch rib installation location, especially, relate to a polygonal steel arch internode positioner of variable cross section.
Background
With the rapid development of bridge technology, the bridge bearing mode is continuously updated. Particularly, in recent years, large steel structure bridges replace concrete bridges with quick construction, low cost, economy and reasonability, and tower structures mainly supporting the stress of the bridges are gradually replaced by steel arches with the advantages of light weight, quickness, attractive appearance and the like. The steel arch rib not only can bear the load, but also can be designed and manufactured into beautiful shapes to form unique scenery of the bridge.
The steel arch rib has various forms, and can be divided into a bridge spanning type perpendicular to or forming a certain angle with the main bridge and a bridge following type parallel to the main bridge according to the connection mode with the main bridge, and the bridge following type is divided into a single arch type and a double arch type. The steel arch rib can be divided into truss type, steel pipe type, box type and the like according to the self structure of the steel arch rib, the truss type is widely applied due to light structure weight and convenient construction, and the truss type can be subdivided into triangular, trapezoidal, rectangular and polygonal trusses; the box-type steel arch rib is mainly of a four-side type and a hexagon, and the steel arch rib with the hexagonal variable cross section is favored by people due to the fact that the edge angle is smooth and the steel arch rib is overlook.
The method for manufacturing and installing the box-type steel arch rib mainly comprises the steps of manufacturing the box-type steel arch rib in sections in a workshop, integrally pre-assembling the box-type steel arch rib in a manufacturing plant, and transporting the box-type steel arch rib to a site for installation. Due to the poor conditions of the installation site, the installation difficulty is increased when the variable cross-section hexagonal steel arch rib is installed. In order to meet the design and standard requirements when the steel arch rib is installed, the preassembly precision in a manufacturing plant is reproduced, and the auxiliary positioning device between the segments is designed, so that the steel arch rib can be assembled quickly and accurately during installation, and the installation efficiency and precision of the steel arch rib are improved.
Disclosure of Invention
In view of this, the present invention provides a positioning device for use between segments of a polygonal steel arch with variable cross-section to reproduce the pre-assembly status of a manufacturing plant, so as to satisfy the requirement of positioning precision and assembling efficiency for assembling and mounting between segments.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
a variable cross-section polygonal steel arch internode positioning device comprises a plurality of first positioning mechanisms and a plurality of second positioning mechanisms, wherein the first positioning mechanisms and the second positioning mechanisms are both arranged at the internode connecting parts of polygonal steel arch ribs, the first positioning mechanisms are respectively arranged on the upper half parts of the polygonal steel arch ribs, and the second positioning mechanisms are respectively arranged on the lower half parts of the polygonal steel arch ribs;
the first positioning mechanism comprises a first fixing plate and a second fixing plate which are respectively fixed on two adjacent polygonal steel arch ribs, a first connecting plate is arranged between the first fixing plate and the second fixing plate, one end of the first connecting plate is fixedly connected with the first fixing plate, and the other end of the first connecting plate is fixedly connected with the second fixing plate;
the second positioning mechanism comprises a main top plate and an end plate, wherein the main top plate and the end plate are respectively fixed on two adjacent polygonal steel arch ribs, the main top plate is arranged along the length direction of the polygonal steel arch ribs, the end plate is perpendicular to the main top plate, a guide through hole is formed in the end plate, and one end of the main top plate is inserted into the guide through hole.
Furthermore, a plurality of first stiffening plates are fixed on two sides of the main top plate, and the first stiffening plates are fixedly connected with the polygonal steel arch ribs.
Furthermore, an avoiding groove is formed in the main top plate and is located at the joint between the sections of the polygonal steel arch rib.
Furthermore, the main top plate comprises a fixed section, a transition section, a positioning section and a guiding section, the transition section is located between the fixed section and the guiding section, the positioning section is located between the transition section and the guiding section, the height of the fixed section is greater than that of the positioning section, the positioning section is clamped in the guiding through hole, and a guiding inclined plane is arranged at the bottom of the guiding section.
Furthermore, the fixed section of the main top plate is provided with a connecting part, the connecting part is positioned on one side of the avoiding groove, the connecting part is fixedly connected with the polygonal steel arch rib, and the first stiffening plates are fixed on two sides of the connecting part.
Furthermore, the two ends of the first connecting plate are respectively connected with the first fixing plate and the second fixing plate through bolts.
Furthermore, a plurality of second stiffening plates are fixed on both sides of the end plate, and the second stiffening plates are fixedly connected with the polygonal steel arch ribs.
Compared with the prior art, polygonal steel arch internode positioner of variable cross section have following advantage:
(1) variable cross section polygon steel encircle internode positioner, two sets of positioning mechanism arrange respectively in hexagonal steel arch rib's top, bottom plate and control two lower webs, the quick locate function in internode is realized in the combination, the installation of applicable various complicated design line type steel arch rib.
(2) Variable cross section polygon steel encircle internode positioner, the preparation material size is little, utilize the clout to make, improve material utilization rate. The arrangement is simple and quick, and the steel arch rib is directly welded on the steel arch rib body; the detachable wall can be repeatedly used after being detached, thereby saving materials and having certain economic effect.
(3) Variable cross section polygon steel encircle internode positioner, realize installation guide effect and quick fixed constraint effect through the main roof when the installation to installation that can be quick targets in place, efficiency when improving the installation.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:
fig. 1 is a schematic view of a positioning device according to an embodiment of the present invention connected to a steel arch rib;
fig. 2 is a schematic view illustrating a connection between a first positioning mechanism and a steel arch rib according to an embodiment of the present invention;
fig. 3 is a schematic view illustrating a connection between a second positioning mechanism and a steel arch rib according to an embodiment of the present invention;
fig. 4 is a top view of a first positioning mechanism according to an embodiment of the present invention;
fig. 5 is a side view of a first positioning mechanism according to an embodiment of the present invention;
fig. 6 is a front view of a column top plate according to an embodiment of the present invention;
fig. 7 is a top view of a second positioning mechanism according to an embodiment of the present invention;
fig. 8 is a front view of an end plate according to an embodiment of the present invention.
Description of reference numerals:
1. a first positioning mechanism; 11. a first fixing plate; 12. a second fixing plate; 13. a first connecting plate; 2. a second positioning mechanism; 21. a main top plate; 211. a first stiffener plate; 212. avoiding the groove; 213. a fixed section; 2131. a connecting portion; 214. a transition section; 215. a positioning section; 216. a guide section; 2161. a guide slope; 22. an end plate; 221. a guide through hole; 222. a second stiffener plate; 3. an Nth segment; 4. segment N + 1; 5. splicing seams; 6. a steel arch rib; 61. a top plate; 62. a base plate; 63. a lower left web; 64. a lower right web; 65. and designing a rib plate.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for 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 therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. 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," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, 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 through specific situations.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1-8, a variable cross-section polygonal steel arch internode positioning device comprises a plurality of first positioning mechanisms 1 and a plurality of second positioning mechanisms 2, wherein the first positioning mechanisms 1 and the second positioning mechanisms 2 are both arranged at the internode connection part of a polygonal steel arch rib 6, the first positioning mechanisms 1 are respectively arranged at the upper half part of the polygonal steel arch rib 6, and the second positioning mechanisms 2 are respectively arranged at the lower half part of the polygonal steel arch rib 6;
preferably, the first positioning mechanism 1 is provided in 1 number and is disposed on the top plate 61 of the steel arch rib 6, and the second positioning mechanism 2 is provided in 3 number and is disposed on the bottom plate 62, the left lower web 63 and the right lower web 64, respectively. The transverse positions of the first positioning mechanism 1 and the second positioning mechanism 2 are arranged at the positions of the cross-section plates corresponding to the rib plates 65 designed inside the steel arch ribs 6, and the axial positions are arranged at the on-site splicing seams 5 of the two sections of steel arch ribs 6, as shown in fig. 1. Two sets of positioning mechanisms are respectively arranged on the top and the bottom plate 62 of the hexagonal steel arch rib 6 and the left and the right lower webs, and are combined to realize the function of quickly positioning the internodes, so that the positioning mechanism is suitable for mounting various linear steel arch ribs 6 with complicated designs.
The first positioning mechanism 1 comprises a first fixing plate 11 and a second fixing plate 12 which are respectively fixed on two adjacent polygonal steel arch ribs 6, a first connecting plate 13 is arranged between the first fixing plate 11 and the second fixing plate 12, one end of the first connecting plate 13 is fixedly connected with the first fixing plate 11, and the other end of the first connecting plate 13 is fixedly connected with the second fixing plate 12; the first fixing plate 11 and the second fixing plate 12 are fixed by welding.
The second positioning mechanism 2 comprises a main top plate 21 and an end plate 22 which are respectively fixed on two adjacent polygonal steel arch ribs 6, the main top plate 21 is arranged along the length direction of the polygonal steel arch ribs 6, the end plate 22 is arranged perpendicular to the main top plate 21, a guide through hole 221 is formed in the end plate 22, and one end of the main top plate 21 is inserted into the guide through hole 221. The main top plate 21 and the end plate 22 are fixed by welding. The size of the manufacturing material is small, the manufacturing can be carried out by utilizing excess materials, and the utilization rate of the material is improved. The arrangement is simple and quick, and the steel arch rib 6 is directly welded on the body of the steel arch rib; the detachable wall can be repeatedly used after being detached, thereby saving materials and having certain economic effect.
A plurality of first stiffening plates 211 are fixed on both sides of the main top plate 21, and the first stiffening plates 211 are fixedly connected with the polygonal steel arch ribs 6. The first stiffening plate 211 plays a role in increasing the strength of the main top plate 21, and ensures that the main top plate 21 is firmly fixed.
An avoiding groove 212 is formed in the main top plate 21, and the avoiding groove 212 is located at the joint between the sections of the polygonal steel arch rib 6. The avoidance groove 212 spans the splicing seams 5 (i.e. the joints between the sections) of the two sections of steel arch ribs 6 to avoid interference with the connection of the splicing seams 5.
The main top plate 21 comprises a fixed section 213, a transition section 214, a positioning section 215 and a guiding section 216, wherein the transition section 214 is located between the fixed section 213 and the guiding section 216, the positioning section 215 is located between the transition section 214 and the guiding section 216, the height of the fixed section 213 is greater than that of the positioning section 215, the positioning section 215 is clamped in the guiding through hole 221, and a guiding inclined plane 2161 is arranged at the bottom of the guiding section 216. In the process that the main top plate 21 is inserted into the guide through hole 221, the guide section 216 enters the guide through hole 221 first, the guide inclined surface 2161 at the bottom of the guide section 216 plays a role in guiding until the positioning section 215 is inserted into the guide through hole 221, the positioning section 215 is matched with the guide through hole 221, the positioning section 215 is clamped by the guide through hole 221, and the main top plate 21 is fixed, so that two adjacent sections of steel arch ribs 6 form a connection relationship. When the installation, the main top plate 21 realizes the installation guiding function and the quick fixing and restraining function, so that the installation can be quickly carried out in place, and the installation efficiency is improved.
The fixing section 213 of the main top plate 21 is provided with a connecting portion 2131, the connecting portion 2131 is located on one side of the avoiding groove 212, the connecting portion 2131 is fixedly connected with the polygonal steel arch rib 6, and the first stiffening plates 211 are fixed on two sides of the connecting portion 2131. The main top plate 21 is welded to the steel arch rib 6 only through the connecting portion 2131, and the positioning section 215 of the main top plate 21 is positioned in close contact with the guide through hole 221 of the end plate 22.
Both ends of the first connecting plate 13 are connected to the first fixing plate 11 and the second fixing plate 12 by bolts, respectively. The first connecting plate 13 is convenient to mount and dismount by adopting a bolt connection mode, so that two adjacent steel arch ribs 6 can be quickly positioned.
A plurality of second stiffening plates 222 are fixed on both sides of the end plate 22, and the second stiffening plates 222 are fixedly connected with the polygonal steel arch rib 6. The second stiffening plate 222 is used for reinforcing the strength of the end plate 22, and the end plate 22 is ensured to be welded more firmly.
When the steel arch rib is installed according to the installation process, after an initial installation segment (such as the Nth segment 3 in figure 1) which is in contact with the steel beam and is a steel arch rib 6 is installed and fixed, the installation of the steel arch rib 6 of the next segment (such as the (N + 1) th segment 4 in figure 1) is started: when the (N + 1) th segment 4 is in contact with the (N) th segment 3, the hoisting machine is firstly utilized to be preliminarily positioned, at this time, the edges of the steel arch rib bottom plate 62, the left lower web 63 and the right lower web 64 of the (N + 1) th segment 4 are in contact with the tops of the main top plates 21 of the 3 second positioning mechanisms 2 of the (N) th segment 3, and then the precise positioning of the (N) th segment 3 and the (N + 1) th segment 4 is completed by utilizing the guiding function of the main top plates 21 of the 3 second positioning mechanisms 2 of the bottom plate 62, the left lower web 63 and the right lower web 64 of the (N + 1) th segment 3, until the positioning section 215 of the main top plate 21 of the second positioning mechanism 2 is inserted into the guiding through hole 221 of the end plate 22 and is clamped by the guiding through hole 221, namely the positioning of the lower part of the.
And then another crane is used for controlling the free end of the (N + 1) th section 4 steel arch rib 6, so that the first fixing plate 11 and the second fixing plate 12 of the first positioning mechanism 1 of the top plate 61 of the opposite end steel arch rib 6 are fixedly connected with the first connecting plate 13 through bolts, namely, the splicing state during processing is reproduced, and the positioning and installation of the (N + 1) th section 4 steel arch rib are completed. Subsequent segments are installed sequentially as described above.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. Variable cross section polygon steel encircles internode positioner, its characterized in that: the positioning device comprises a plurality of first positioning mechanisms and a plurality of second positioning mechanisms, wherein the first positioning mechanisms and the second positioning mechanisms are both arranged at the internode connecting parts of the polygonal steel arch ribs, the first positioning mechanisms are respectively arranged at the upper half parts of the polygonal steel arch ribs, and the second positioning mechanisms are respectively arranged at the lower half parts of the polygonal steel arch ribs;
the first positioning mechanism comprises a first fixing plate and a second fixing plate which are respectively fixed on two adjacent polygonal steel arch ribs, a first connecting plate is arranged between the first fixing plate and the second fixing plate, one end of the first connecting plate is fixedly connected with the first fixing plate, and the other end of the first connecting plate is fixedly connected with the second fixing plate;
the second positioning mechanism comprises a main top plate and an end plate, wherein the main top plate and the end plate are respectively fixed on two adjacent polygonal steel arch ribs, the main top plate is arranged along the length direction of the polygonal steel arch ribs, the end plate is perpendicular to the main top plate, a guide through hole is formed in the end plate, and one end of the main top plate is inserted into the guide through hole.
2. The variable cross-section polygonal steel internode positioning device of claim 1, wherein: and a plurality of first stiffening plates are fixed on both sides of the main top plate and are fixedly connected with the polygonal steel arch ribs.
3. The variable cross-section polygonal steel internode positioning device of claim 2, wherein: and the main top plate is provided with an avoiding groove which is positioned at the internode connecting part of the polygonal steel arch rib.
4. The variable cross-section polygonal steel internode positioning device of claim 3, wherein: the main top plate comprises a fixed section, a transition section, a positioning section and a guiding section, the transition section is located between the fixed section and the guiding section, the positioning section is located between the transition section and the guiding section, the height of the fixed section is larger than that of the positioning section, the positioning section is clamped in the guiding through hole, and a guiding inclined plane is arranged at the bottom of the guiding section.
5. The variable cross-section polygonal steel internode positioning device of claim 4, wherein: the fixed section of the main top plate is provided with a connecting part, the connecting part is positioned on one side of the avoiding groove, the connecting part is fixedly connected with the polygonal steel arch rib, and the first stiffening plates are fixed on two sides of the connecting part.
6. The variable cross-section polygonal steel internode positioning device of claim 1, wherein: and two ends of the first connecting plate are respectively connected with the first fixing plate and the second fixing plate through bolts.
7. The variable cross-section polygonal steel internode positioning device of claim 1, wherein: and a plurality of second stiffening plates are fixed on both sides of the end plates and fixedly connected with the polygonal steel arch ribs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020849264.5U CN212641215U (en) | 2020-05-20 | 2020-05-20 | Variable cross-section polygonal steel arch internode positioning device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020849264.5U CN212641215U (en) | 2020-05-20 | 2020-05-20 | Variable cross-section polygonal steel arch internode positioning device |
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| CN212641215U true CN212641215U (en) | 2021-03-02 |
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| CN202020849264.5U Active CN212641215U (en) | 2020-05-20 | 2020-05-20 | Variable cross-section polygonal steel arch internode positioning device |
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