CN113186806A - Steel bridge high-strength bolt anti-loosening connection node device - Google Patents
Steel bridge high-strength bolt anti-loosening connection node device Download PDFInfo
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- CN113186806A CN113186806A CN202110522455.XA CN202110522455A CN113186806A CN 113186806 A CN113186806 A CN 113186806A CN 202110522455 A CN202110522455 A CN 202110522455A CN 113186806 A CN113186806 A CN 113186806A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 451
- 239000010959 steel Substances 0.000 title claims abstract description 451
- 210000001015 abdomen Anatomy 0.000 claims abstract description 51
- 230000000149 penetrating effect Effects 0.000 claims description 17
- 230000006978 adaptation Effects 0.000 claims description 2
- 230000002265 prevention Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 7
- 238000004080 punching Methods 0.000 description 3
- 230000003187 abdominal effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
- E01D2/02—Bridges characterised by the cross-section of their bearing spanning structure of the I-girder type
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/30—Metal
Abstract
The invention discloses a steel bridge high-strength bolt anti-loose connection node device. The first steel beam and the second steel beam comprise upper flanges, webs and lower flanges; the first bolt penetrates through the upper C-shaped steel plate, the first steel plate and the upper flange to fixedly connect the upper C-shaped steel plate, the first steel plate and the upper flange together; the second bolts penetrate through the trough-shaped steel plates and the lower flange to fixedly connect the trough-shaped steel plates and the lower flange together; and the third bolts penetrate through the abdomen groove-shaped steel plates and the web plates to fixedly connect the abdomen groove-shaped steel plates and the web plates together. According to the invention, the steel plate is used for supporting and fixing the high-strength bolt connecting node to form an integral node, so that the looseness prevention of the high-strength bolt connecting node of the steel bridge is improved.
Description
Technical Field
The invention belongs to the technical field of bolt connection, and relates to a steel bridge high-strength bolt anti-loosening connection node device; more particularly, the invention relates to a steel bridge high-strength bolt anti-loosening connecting node with more integrity and a connecting method thereof.
Background
In recent years, with the accelerated urbanization process of China, the green traffic concept is continuously popularized. The steel structure bridge is rapidly developed as an economical and green construction traffic infrastructure. At present, high-strength bolt connection plays an important role in exerting the joint force of the steel bridge as a widely applied connection mode. In the operation of a steel structure bridge, the overall stability of the connection of bridge nodes is related to the whole life cycle of the bridge and even influences the basic driving safety of a bridge. Therefore, a steel bridge high-strength bolt anti-loosening connecting node and a connecting method which are more integral are researched and developed for connection of the inner beam body of the steel structure bridge, so that the inner node of the bridge is firmer and more stable, and the whole safety performance of the bridge structure is higher.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to provide a steel bridge high-strength bolt anti-loosening connecting node device.
The technical scheme is as follows: the invention discloses a steel bridge high-strength bolt anti-loosening connecting joint device which comprises a first steel beam (1) and a second steel beam (2) which are adjacent, wherein the first steel beam (1) and the second steel beam (2) respectively comprise an upper flange at the upper part, a web at the middle part and a lower flange at the lower part;
an upper C-shaped steel plate (3) is detachably arranged on the upper flange, a plurality of first bolt holes (14) matched with each other in position are uniformly formed in the upper C-shaped steel plate (3) and the two upper flanges, first bolts (6) used for connecting upper flanges of the upper C-shaped steel plate (3), the first steel beam (1) and the second steel beam (2) are arranged in the first bolt holes (14) in a penetrating mode, and first nuts (15) are arranged on the first bolts (6) penetrating through the first bolt holes (14);
two sides of the lower flange are detachably provided with a trough-shaped steel plate (7) respectively; second bolt holes (16) matched with a plurality of positions are uniformly formed in the two channel-shaped steel plates (7) and the two lower flanges, second bolts (8) used for connecting the lower flange intervals of the channel-shaped steel plates (7), the first steel beams (1) and the second steel beams (2) penetrate through the second bolt holes (16), and second nuts (17) are arranged on the second bolts (8) penetrating through the second bolt holes (16);
two ends of the web plate of the first steel beam (1) and the second steel beam (2) are respectively provided with a detachable belly channel steel plate (9),
the web plate of abdomen channel steel sheet (9), first girder steel (1) and second girder steel (2) on the equipartition seted up third bolt hole (18) of a plurality of position looks adaptation wear to be equipped with in third bolt hole (18) and be used for connecting third bolt (10) of abdomen channel steel sheet (9), first girder steel (1) and second girder steel (2) web department all install third nut (19) on third bolt (10) that a plurality of passed third bolt hole (18).
Furthermore, two first steel plates (5) are arranged below the two upper flanges and at two ends of the web plate through first bolts (6); the first steel plate (5) is also provided with a first bolt hole (14);
a bump (4) for clamping the first steel beam (1), the second steel beam (2), the upper C-shaped steel plate (3) and the first steel plate (5) is further arranged at the lower part of the inner side of the upper C-shaped steel plate (3), and a groove (12) is formed below the bump (4); a clamping block (13) matched with the groove (12) is arranged on the first steel plate (5);
and arc-shaped chamfers (11) are respectively arranged at one ends of the convex block (4) and the upper C-shaped steel plate (3).
Furthermore, the height of the two belly channel steel plates (9) is matched with that of the web plate, the upper sides of the two belly channel steel plates are arranged on the lower side of the first steel plate (5), and the lower sides of the two belly channel steel plates are clamped on the lower flanges of the first steel beam (1) and the second steel beam (2).
Furthermore, the first steel beam (1) and the second steel beam (2) are two adjacent H-shaped or I-shaped steel beams respectively; the first steel plates (5) are two straight steel plates; the first bolt (6) is a steel beam upper flange bolt group, the second bolt (8) is a steel beam lower flange bolt group, and the third bolt (10) is a steel beam web bolt group.
Furthermore, the first bolt (6), the second bolt (8) and the third bolt (10) are all bolts with large hexagonal heads.
Furthermore, the number of the first bolt holes (14) uniformly distributed on the upper C-shaped steel plate (3), the first steel plate (5) and the two upper flanges is 8; the number of the second bolt holes (16) uniformly distributed on the trough-shaped steel plate (7) and the two lower flanges on one side is respectively 4; the number of the third bolt holes (18) uniformly distributed on the two abdomen groove-shaped steel plates (9) and the two webs is 10.
Further, the connection method of the steel bridge high-strength bolt anti-loosening connection node device comprises the following specific operation steps:
(6.1) punching matched positions on an upper flange, a web plate, a lower flange, an upper C-shaped steel plate (3), a first steel plate (5), a channel-shaped steel plate (7) and an abdomen channel-shaped steel plate (9) of the first steel beam (1) and the second steel beam (2);
(6.2) aligning the upper flanges of the first steel beam (1) and the second steel beam (2) which are opposite to each other, and primarily fixing the first steel beam and the second steel beam after penetrating through the upper C-shaped steel plate (3);
(6.3) aligning and tightly attaching two ends of the first steel beam (1) and the second steel beam (2) to form a node, then moving the upper C-shaped steel plate (3) to the node to enable the upper C-shaped steel plate (3) to be respectively located at the node of the upper flange of the first steel beam (1) and the node of the upper flange of the second steel beam (2), and simultaneously aligning first bolt holes (14) formed in the upper C-shaped steel plate (3), the upper flange of the first steel beam (1) and the upper flange of the second steel beam (2);
(6.4) moving the first steel plate (5) to enter the lower part of the upper flange through the upper C-shaped steel plate (3) and a circular arc chamfer (11) on a lug (4) arranged on the inner side of the upper C-shaped steel plate (3), arranging a fixture block (13) in a groove (12), supporting and fixing the first steel plate (5) through the fixture block (13) and the groove (12), and aligning a first bolt hole (14) formed in the first steel plate (5) with a first bolt hole (14) formed in the upper flange and the upper C-shaped steel plate (3);
(6.5), an abdomen channel-section steel plate (9) is arranged on each of two sides of webs of the first steel beam (1) and the second steel beam (2), the upper end of the abdomen channel-section steel plate (9) is jacked to the lower side of the first steel plate (5) firstly, the first steel plate (5) is supported, then the lower end of the abdomen channel-section steel plate (9) is clamped to the upper surfaces of the lower flanges of the first steel beam (1) and the second steel beam (2), the abdomen channel-section steel plate (9) is pushed, so that the abdomen channel-section steel plates (9) on two sides are tightly attached to the webs of the first steel beam (1) and the second steel beam (2), and meanwhile, third bolt holes (18) formed in the abdomen channel-section steel plate (9) are aligned with the third bolt holes (18) formed in the webs of the first steel beam (1) and the second steel beam (2);
(6.6) respectively clamping two channel steel plates (7) on the lower flanges at two sides of the first steel beam (1) and the second steel beam (2), fixing the first steel beam (1) and the second steel beam (2), respectively forming second bolt holes (16) in the channel steel plates (7), the lower flanges of the first steel beam (1) and the second steel beam (2), and aligning the second bolt holes (16) formed in the channel steel plates (7) with the second bolt holes (16) in the lower flanges;
(6.7) penetrating a first bolt (6) through first bolt holes (14) formed in upper flanges of the first steel beam (1) and the second steel beam (2) and upper C-shaped steel plates (3) and the first steel plate (5) from top to bottom, placing a first nut (15) in a first screw groove formed in the upper C-shaped steel plate (3), and detachably installing the first nut (15) on the penetrating first bolt (6), so that the upper flanges of the first steel beam (1) and the second steel beam (2), the upper C-shaped steel plates (3) and the first steel plate (5) are screwed and fixed;
(6.8) penetrating a third bolt (10) through the two abdomen groove-shaped steel plates (9) and third bolt holes (18) formed in webs of the first steel beam (1) and the second steel beam (2) clamped between the two abdomen groove-shaped steel plates (9) from back to front, and detachably installing a third nut (19) on the penetrating third bolt (10), so that the webs of the two abdomen groove-shaped steel plates (9), the first steel beam (1) and the second steel beam (2) are connected and fixed;
(6.9) penetrating a second bolt (8) from bottom to top through a second bolt hole (16) formed in the lower flanges of the channel steel plate (7), the first steel beam (1) and the second steel beam (2), and detachably installing a second nut (17) on the penetrating second bolt (8) so as to connect and fix the lower flanges of the first steel beam (1) and the second steel beam (2) and the channel steel plate (7); and finally, connecting the first steel beam (1) and the second steel beam (2) together to form an integral joint.
Has the advantages that: compared with the prior art, the high-strength bolt connecting node is supported and fixed by the steel plate to form an integral node, so that the looseness prevention performance of the high-strength bolt connecting node of the steel bridge is improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a left side view of the present invention;
FIG. 3 is a cross-sectional perspective view taken along A-A in FIG. 2;
FIG. 4 is a schematic view of the components of the apparatus of the present invention;
FIG. 5 is a first schematic diagram of the components of the present invention;
FIG. 6 is a second schematic diagram of the components of the present invention;
FIG. 7 is an enlarged schematic view at A of FIG. 3 of the present invention;
FIG. 8 is an enlarged schematic view of the invention at B in FIG. 3;
fig. 9 is an enlarged schematic view at C of fig. 5 of the present invention.
Wherein, 1 is the first girder steel, 2 is the second girder steel, 3 is upper portion C shaped steel board, 4 is the lug, 5 is the first steel board, 6 is the first bolt, 7 is C shaped steel board, 8 is the second bolt, 9 is belly groove type steel board, 10 is the third bolt, 11 is the circular arc chamfer, 12 is the recess, 13 is the fixture block, 14 is the first bolt hole, 15 is the first nut, 16 is the second bolt hole, 17 is the second nut, 18 is the third bolt hole, 19 is the third nut.
Detailed Description
As shown in fig. 1 to 9, the anti-loosening connecting joint device for the high-strength bolt of the steel bridge comprises a first steel beam 1 and a second steel beam 2 which are adjacent to each other, wherein each of the first steel beam 1 and the second steel beam 2 comprises an upper flange at the upper part, a web at the middle part and a lower flange at the lower part;
the upper C-shaped steel plate 3 is slidably arranged on the upper flanges of the first steel beam 1 and the second steel beam 2, the convex block 4 is arranged at the lower part of the inner side of the upper C-shaped steel plate 3, and the convex block 4 is arranged on two sides of the inner part of the upper C-shaped steel plate 3; a first slidable steel plate 5 provided on said projection 4,
a first bolt 6 passes through first bolt holes 14 formed in upper flanges of the first steel beam 1 and the second steel beam 2, the upper C-shaped steel plate 3 and the first steel plate 5 and is fixed through a first nut 15, so that the upper flanges of the first steel beam 1 and the second steel beam 2 are connected together;
the first steel beam 1 and the second steel beam 2 are symmetrically arranged on the lower flange of the first steel beam 1 and the lower flange of the second steel beam 2, and the second bolt 8 penetrates through a second bolt hole 16 formed in the lower flange of the first steel beam 7, the first steel beam 1 and the second steel beam 2 and is fixed through a second nut 17, so that the lower flanges of the first steel beam 1 and the second steel beam 2 are connected together;
the symmetry is located the belly channel type steel sheet 9 of first girder steel 1 and the 2 web both sides of second girder steel, and third bolt 10 passes both sides belly channel type steel sheet 9 and the second bolt hole 18 of seting up on first girder steel 1 and the 2 web of second girder steel between the channel type steel sheet 9 of both sides are established to the card to fix it through third nut 19, will first girder steel 1 with the web of second girder steel 2 links together.
Further, arc chamfers 11 are arranged at the lug 4 and one end of the upper C-shaped steel plate 4; a groove 12 is clamped below the projection 4, a fixture block 13 which is arranged on the first steel plate 5 and is matched with the groove 12 is arranged, and the length of the fixture block 13 is smaller than that of the first steel plate 5;
during installation, will upper portion C shaped steel plate 3 moves to the node of first girder steel 1 and second girder steel 2, and after first steel plate 5 passed through circular arc chamfer 11, fixture block 13 got into in the recess 12, withstood the lower part of girder steel top flange, and lug 4 supported first steel plate 5 simultaneously, and first steel plate 5 is equipped with first bolt hole 14, and first bolt 6 passes respectively upper portion C shaped steel plate 3, first girder steel 1 and second girder steel 2 top flange with behind the first steel plate 5, fixed through first nut 15, first nut 15 is partly hidden in first bolt hole 14, carries on spacingly through first bolt hole 14 to first nut 15.
Further, the upper C-shaped steel plate 3 is moved to a node of the first steel beam 1 and the second steel beam 2, after the first steel plate 5 passes through the arc-shaped chamfer 11, the clamping block 13 enters the groove 12, and the lower parts of the upper flanges of the first steel beam 1 and the second steel beam 2 can be propped against.
Further, after the first bolt 6 penetrates through the first bolt holes 14 formed in the upper C-shaped steel plate 3, the upper flanges of the first steel beam 1 and the second steel beam 2, and the first steel plate 5, the first bolt 6 is fixed through the first nut 15, in addition, the first nut 15 is partially hidden in the first bolt hole 14, and the first nut 15 is limited through the first bolt hole 14.
Further, the channel steel plates 7 on the two sides of the lower flanges of the first steel beam 1 and the second steel beam 2 clamp the lower flanges of the first steel beam 1 and the second steel beam 2, the second bolt holes 16 penetrate through the lower sides of the channel steel plates 7 and partially enter the lower flanges of the first steel beam 1 and the second steel beam 2, one end of each second bolt 8 enters the second bolt holes 16 and penetrates through the lower flanges of the first steel beam 1 and the second steel beam 2 and the upper sides of the channel steel plates 7 to be fixed through second nuts 17, in addition, the heads of the second bolts 8 are completely hidden in the second bolt holes 16, the bolts 8 are limited through the second bolt holes 16, and the lower portions of the channel steel plates 7 are flat.
Further, the lower flange of first steel sheet 5 and first girder steel 1 and second girder steel 2 is being pushed up respectively to both sides about the belly channel-section steel sheet 9, and first steel sheet 5 is being pushed up to the higher authority of belly channel-section steel sheet 9 for to the support of first steel sheet 5, the lower extreme card of belly channel-section steel sheet 9 is to the upper surface on first girder steel 1 and second girder steel 2 lower flange, makes the connected node on last flange and lower flange pass through belly channel-section steel sheet 9 and combines together, and third bolt 10 passes and establishes third bolt hole 18 of seting up on belly channel-section steel sheet 9, first girder steel 1 and the second girder steel 2 web, and rethread third nut 19 is fixed third bolt 10, thereby will the web of first girder steel 1 and second girder steel 2 links together.
Further, the first steel beam 1 and the second steel beam 2 are two adjacent H-shaped or I-shaped steel beams respectively; the first steel plate 5 is two straight steel plates; the first bolts 6 are steel beam upper flange bolt groups, the second bolts 8 are steel beam lower flange bolt groups, and the third bolts 10 are steel beam web plate bolt groups.
Further, the first bolt 6, the second bolt 8 and the third bolt 10 are all large hexagon bolts; specifically, the bolts are high-strength bolts, and the types of the bolts are M20, M22, M24, M27, M30 and other steel structure bridge inner large hexagon head bolts.
Further, the number of the first bolt holes 14 uniformly distributed on the upper C-shaped steel plate 3, the first steel plate 5 and the two upper flanges is 8; the number of the second bolt holes 16 uniformly distributed on the trough-shaped steel plate 7 and the two lower flanges on one side is respectively 4; the number of the third bolt holes 18 uniformly formed in the two abdominal channel steel plates 9 and the two webs is 10, and the number of the bolts is not limited to the above number, and may be changed as appropriate.
Further, a connection method of locking connected node device of steel bridge high strength bolt, its characterized in that: the specific operation steps are as follows:
punching matched positions on an upper flange, a web plate and a lower flange of the first steel beam (1) and the second steel beam (2), an upper C-shaped steel plate (3), a first steel plate (5), a channel-shaped steel plate (7) and an abdomen channel-shaped steel plate (9);
aligning the upper flanges of the first steel beam (1) and the second steel beam (2) which are opposite to each other, and primarily fixing the first steel beam and the second steel beam after penetrating through the upper C-shaped steel plate (3);
aligning and tightly attaching two ends of a first steel beam (1) and a second steel beam (2) to form a node, then moving an upper C-shaped steel plate (3) to the node, respectively positioning the upper C-shaped steel plate (3) at the node of the upper flange of the first steel beam (1) and the second steel beam (2), and simultaneously aligning first bolt holes (14) formed in the upper flange of the upper C-shaped steel plate (3), the first steel beam (1) and the second steel beam (2);
moving a first steel plate (5) to enter the lower part of an upper flange through an upper C-shaped steel plate (3) and an arc-shaped chamfer (11) on a lug (4) arranged on the inner side of the upper C-shaped steel plate (3), arranging a fixture block (13) into a groove (12), supporting and fixing the first steel plate (5) through the fixture block (13) and the groove (12), and aligning a first bolt hole (14) formed in the first steel plate (5) with a first bolt hole (14) formed in the upper flange and the upper C-shaped steel plate (3);
the method comprises the following steps that an abdomen channel steel plate (9) is arranged on each of two sides of webs of a first steel beam (1) and a second steel beam (2), the upper end of the abdomen channel steel plate (9) is jacked to the lower portion of the first steel plate (5) to support the first steel plate (5), then the lower end of the abdomen channel steel plate (9) is clamped to the upper surfaces of the lower flanges of the first steel beam (1) and the second steel beam (2), the abdomen channel steel plate (9) is pushed, so that the abdomen channel steel plates (9) on two sides are tightly attached to the webs of the first steel beam (1) and the second steel beam (2), and meanwhile, third bolt holes (18) formed in the abdomen channel steel plate (9) are aligned with the third bolt holes (18) formed in the webs of the first steel beam (1) and the second steel beam (2);
the method comprises the following steps of (1) respectively clamping two channel steel plates (7) on lower flanges at two sides of a first steel beam (1) and a second steel beam (2), fixing the first steel beam (1) and the second steel beam (2), respectively forming second bolt holes (16) in the channel steel plates (7), the first steel beam (1) and the second steel beam (2), and aligning the second bolt holes (16) formed in the channel steel plates (7) with the second bolt holes (16) in the lower flanges;
a first bolt (6) penetrates through first bolt holes (14) formed in the upper flanges of the first steel beam (1) and the second steel beam (2), the upper C-shaped steel plate (3) and the first steel plate (5) from top to bottom, a first nut (15) is placed in a first screw groove formed in the upper C-shaped steel plate (3) and detachably arranged on the penetrating first bolt (6), and therefore the upper flanges of the first steel beam (1) and the second steel beam (2), the upper C-shaped steel plate (3) and the first steel plate (5) are connected and fixed;
the third bolt (10) penetrates through the two abdomen groove-shaped steel plates (9) and third bolt holes (18) formed in webs of the first steel beam (1) and the second steel beam (2) clamped between the two abdomen groove-shaped steel plates (9) from back to front, and a third nut (19) is detachably arranged on the penetrating third bolt (10), so that the webs of the two abdomen groove-shaped steel plates (9), the first steel beam (1) and the second steel beam (2) are connected and fixed;
penetrating a second bolt (8) from bottom to top through a second bolt hole (16) formed in the lower flanges of the channel steel plate (7), the first steel beam (1) and the second steel beam (2), and detachably installing a third nut (15) on the penetrating second bolt (8), so that the lower flanges of the first steel beam (1) and the second steel beam (2) and the channel steel plate (7) are connected and fixed; and finally, connecting the first steel beam (1) and the second steel beam (2) together to form an integral joint.
The specific embodiment is as follows:
(1) respectively punching an upper flange, a lower flange, a web plate, an upper C-shaped steel plate 3, a first steel plate 5, a channel steel plate 7 and an abdomen channel steel plate 9 of the first steel beam 1 and the second steel beam 2, wherein the preset hole size is 32(mm), the cross-sectional sizes of the first steel beam 1 and the second steel beam 2 are H400 multiplied by 200 multiplied by 12 multiplied by 15(mm), and the cross-sectional size of the upper C-shaped steel plate 3 is C225 multiplied by 25 multiplied by 50 multiplied by 5 (mm); the cross-sectional dimension of the channel steel plate 7 is 20 × 50 × 5 × 5 (mm); the cross section of the I-shaped steel plate is 99 multiplied by 5 (mm);
the steel plates are all made of Q345 low-alloy structural steel; the bolt is a high-strength bolt with a large hexagon head and the bolt type of M30 and made of 10.9S;
(2) the upper C-shaped steel plate 3 penetrates through the upper flanges of the first steel beam 1 and the second steel beam 2;
(3) aligning and tightly attaching two ends of the first steel beam 1 and the second steel beam 2 to form a node, then moving the upper C-shaped steel plate 3 to the node, so that the upper C-shaped steel plate 3 is respectively positioned at the upper flange node of the first steel beam 1 and the second steel beam 2, and simultaneously aligning a first bolt hole 14 on the upper C-shaped steel plate 3 with a first bolt hole 14 on an upper flange;
(4) enabling the first steel plate 5 to move below the upper flange through an arc-shaped chamfer 11 on the upper C-shaped steel plate 3 and an arc-shaped chamfer 11 on a lug 4 arranged on the lower side inside the upper C-shaped steel plate, wherein the size of the arc-shaped chamfer 11 is 1.5mm multiplied by 45 degrees, the lug 4 protrudes out of the lower part of the upper C-shaped steel plate 3 by 10mm, a fixture block 13 is matched with a groove 12, the fixture block 13 is pushed into the groove 12, the support of the first steel plate 5 is fixed through the fixture block 13 and the groove 12, and meanwhile, a first bolt hole 14 of the first steel plate 5 is aligned with a first bolt hole 14 of the upper flange;
(5) placing a first nut 15 into the first screw groove, then installing a first bolt from top to bottom, and connecting and fixing the upper flanges of the first steel beam 1 and the second steel beam 2, the upper C-shaped steel plate 3 and the first steel plate 5;
(6) the abdomen channel-section steel plates 9 are installed at the web plates of the first steel beam 1 and the second steel beam 2, the upper ends of the abdomen channel-section steel plates 9 are firstly jacked to the first steel plate 5 to support the first steel plate 5, then the lower ends of the abdomen channel-section steel plates 9 are clamped to the upper surfaces of the lower flange of the first steel beam 1 and the second steel beam 2 to push the abdomen channel-section steel plates 9, so that the abdomen channel-section steel plates 9 on two sides are tightly attached to the web plates of the first steel beam 1 and the second steel beam 2, and meanwhile, the third bolt holes 18 of the abdomen channel-section steel plates 9 are aligned with the third bolt holes 18 on the web plates of the first steel beam 1 and the second steel beam 2;
(7) connecting and fixing the web plates of the abdominal channel steel plate 9 and the first steel beam 1 and the second steel beam 2 through a third bolt 10;
(8) the lower flanges of the first steel beam 1 and the second steel beam 2 are clamped by the channel steel plate 7 from two sides, and meanwhile, the second bolt holes 16 of the channel steel plate 7 are aligned with the second bolt holes 16 of the lower flanges;
(9) second bolt 8 from the second thread groove up installation down, let during the spiral shell head of second bolt 8 all enters into the second thread groove, connect through second bolt 8 with channel-section steel plate 7 and first girder steel 1 and the 2 lower flanges of second girder steel and fix, finally make first girder steel 1 and second girder steel 2 link together, form the wholeness node.
Claims (6)
1. The utility model provides a locking connected node device of steel bridge high strength bolt which characterized in that: the steel plate comprises a first steel beam (1) and a second steel beam (2) which are adjacent to each other, wherein the first steel beam (1) and the second steel beam (2) respectively comprise an upper flange, a web plate and a lower flange;
an upper C-shaped steel plate (3) is detachably arranged on the upper flanges, a plurality of first bolt holes (14) matched with each other in position are uniformly formed in the upper C-shaped steel plate (3) and the two upper flanges, first bolts (6) used for connecting the upper C-shaped steel plate (3), the first steel beam (1) and the upper flange intervals of the second steel beam (2) penetrate through the first bolt holes (14), and first nuts (15) are arranged on the first bolts (6) penetrating through the first bolt holes (14);
two sides of the lower flange are detachably provided with a trough-shaped steel plate (7) respectively; a plurality of second bolt holes (16) matched in position are uniformly formed in the two channel-shaped steel plates (7) and the two lower flanges, second bolts (8) used for connecting the channel-shaped steel plates (7), the first steel beams (1) and the lower flange intervals of the second steel beams (2) penetrate through the second bolt holes (16), and second nuts (17) are arranged on the second bolts (8) penetrating through the second bolt holes (16);
the both ends of the web of first girder steel (1) and second girder steel (2) have installed a detachable belly channel type steel sheet (9) respectively, two the third bolt hole (18) of a plurality of position looks adaptation is seted up to the equipartition on the web of belly channel type steel sheet (9), first girder steel (1) and second girder steel (2) wear to be equipped with in third bolt hole (18) and be used for connecting third bolt (10) of belly channel type steel sheet (9), first girder steel (1) and second girder steel (2) web department all installed third nut (19) on third bolt (10) that the third bolt hole (18) were passed to a plurality of.
2. The steel bridge high-strength bolt anti-loosening connecting joint device as claimed in claim 1, is characterized in that: two first steel plates (5) are further arranged below the two upper flanges and at two ends of the web plate through first bolts (6); the first steel plate (5) is also provided with a first bolt hole (14);
a bump (4) for clamping the first steel beam (1), the second steel beam (2), the upper C-shaped steel plate (3) and the first steel plate (5) is further arranged at the lower part of the inner side of the upper C-shaped steel plate (3), and a groove (12) is formed below the bump (4); a clamping block (13) matched with the groove (12) is arranged on the first steel plate (5);
and arc-shaped chamfers (11) are respectively arranged at one ends of the convex block (4) and the upper C-shaped steel plate (3).
3. The steel bridge high-strength bolt anti-loosening connecting joint device as claimed in claims 1 and 2, is characterized in that: the height of the two abdomen channel steel plates (9) is matched with that of the web plate, the upper sides of the two abdomen channel steel plates are arranged on the lower side of the first steel plate (5), and the lower sides of the two abdomen channel steel plates are clamped on the lower flanges of the first steel beam (1) and the second steel beam (2).
4. The steel bridge high-strength bolt anti-loosening connecting joint device as claimed in claim 1, is characterized in that: the first steel beam (1) and the second steel beam (2) are two adjacent H-shaped or I-shaped steel beams respectively; the first steel plates (5) are two straight steel plates; the first bolt (6) is a steel beam upper flange bolt group, the second bolt (8) is a steel beam lower flange bolt group, and the third bolt (10) is a steel beam web bolt group.
5. The steel bridge high-strength bolt anti-loosening connecting joint device as claimed in claim 1, is characterized in that: the first bolt (6), the second bolt (8) and the third bolt (10) are all large hexagon head-shaped bolts.
6. The steel bridge high-strength bolt anti-loosening connecting joint device as claimed in claim 1, is characterized in that: the number of the first bolt holes (14) uniformly distributed on the upper C-shaped steel plate (3), the first steel plate (5) and the two upper flanges is 8; the number of the second bolt holes (16) uniformly distributed on the trough-shaped steel plate (7) and the two lower flanges on one side is respectively 4; the number of the third bolt holes (18) uniformly distributed on the two abdomen groove-shaped steel plates (9) and the two webs is 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110522455.XA CN113186806A (en) | 2021-05-13 | 2021-05-13 | Steel bridge high-strength bolt anti-loosening connection node device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110522455.XA CN113186806A (en) | 2021-05-13 | 2021-05-13 | Steel bridge high-strength bolt anti-loosening connection node device |
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| Publication Number | Publication Date |
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| CN113186806A true CN113186806A (en) | 2021-07-30 |
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| CN202110522455.XA Pending CN113186806A (en) | 2021-05-13 | 2021-05-13 | Steel bridge high-strength bolt anti-loosening connection node device |
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