CN208136711U - It is a kind of suitable for steel bridge or the anti-pulling support of steel reinforced concrete composite beam bridge - Google Patents

It is a kind of suitable for steel bridge or the anti-pulling support of steel reinforced concrete composite beam bridge Download PDF

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Publication number
CN208136711U
CN208136711U CN201720810321.7U CN201720810321U CN208136711U CN 208136711 U CN208136711 U CN 208136711U CN 201720810321 U CN201720810321 U CN 201720810321U CN 208136711 U CN208136711 U CN 208136711U
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China
Prior art keywords
steel
steel plate
support
bridge
plate
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Expired - Fee Related
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CN201720810321.7U
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Chinese (zh)
Inventor
田钦
廖子涵
熊进刚
宋固全
雷斌
张爱萍
王靓妮
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Nanchang University
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Nanchang University
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Abstract

It is a kind of suitable for steel bridge or the anti-pulling support of steel reinforced concrete composite beam bridge, the anti-pulling support are made of positioning steel core, support upper steel plate, the slipper of support, annular rubber plate with groove, support lower steel plate, side anti-pulling steel block and arc-shaped limit device;The slipper of support adapts to the suitable bridge of beam body to displacement;Annular rubber plate with groove undertakes the rotating function of support;In addition, be respectively disposed with direction across bridge anti-pulling steel block on support lower steel plate, the suitable bridge that the horizontal segment of anti-pulling steel block is directly buckled in support upper steel plate two sides when earthquake limits the biggish buckling deformation of beam body on sliding rail.The utility model has the advantages that rotational deformation is good, durability is good, height of support is low etc..

Description

It is a kind of suitable for steel bridge or the anti-pulling support of steel reinforced concrete composite beam bridge
Technical field
The utility model belongs to bridge construction technology field, is related to a kind of anti-pulling support and its construction method.
Background technique
In recent years, China greatly develops the use of steel bridge or steel reinforced concrete composite beam bridge.Such bridge improve integral strength, While anti-seismic performance, mitigates self weight, increases under-clearance, moreover it is possible to effectively shorten construction period.Steel bridge or steel reinforced concrete composite beam bridge Although General Purpose Rubber support can be used, have the disadvantage that.
(1)Anti-pulling ability is too weak.Laminated rubber bearing can preferably solve the corner generated when normal operation, but meet with Violent earthquake, beam body occur then provide enough restraining forces when big corner warpage.
(2)Board-like rubber shear resistance is limited.When larger displacement, the shear-deformable pole more than rubber of support occur for beam body When limiting shear-deformable, support rubber part is easy to damage.
(3)Direction across bridge stop block structure is unreasonable.Direction across bridge two sides setting of the Bridges in Our Country mostly at the top of pier cap beam at present Reinforced concrete block, but the shear resistance of reinforced concrete block is insufficient, in earthquake it occur frequently that destroying;And block is sent out When raw collision, collision stress effect can be directly delivered to bridge pier bottom, damage to pier bottom.
Utility model content
To solve the above problems, the utility model is that steel bridge or steel reinforced concrete composite beam bridge devise a kind of novel base for supporting, energy Preferably solve the problems, such as existing support, and the demand characteristics of energy further satisfaction steel bridge or steel reinforced concrete composite beam bridge.This is practical new Type can effectively limit beam body direction across bridge displacement and larger buckling deformation, adapt to beam body along bridge to displacement demand.In addition, passing through The relatively new design of beam body and abutment contact surface promotes the shear resistance of junction.
The utility model is achieved through the following technical solutions.
It is described in the utility model a kind of suitable for steel bridge or the anti-pulling support of steel reinforced concrete composite beam bridge, specifically include positioning Steel under steel core, support upper steel plate, stainless steel plate, polyfluortetraethylene plate, middle steel plate, annular rubber plate with groove, support Plate, arc-shaped limit device and side anti-pulling steel stop block structure.
Support upper steel plate is one piece of rectangle steel, is fixed by bolts in beam body bottom.It is opened in direction across bridge two sides Have suitable bridge to sliding rail, convenient for beam body when earthquake suitable bridge to sliding.A circular groove is equipped in center simultaneously.
The positioning steel core embedded in support upper steel plate center, be fixed on beam body bottom leveling steel plate and support upper steel plate it Between, top is slightly above support upper steel plate, and the raised area is among the groove of leveling steel plate.
The slipper is located at below support upper steel plate, and upper part is one piece of stainless steel plate, and middle part is that one piece of circle is poly- Tetrafluoroethene plate, lower part are one piece of middle steel plates for being provided with circular groove;Polyfluortetraethylene plate is embedded in middle steel plate, with stainless steel Plate contact, stainless steel plate and support upper steel plate weld.
The annular rubber plate with groove and middle steel plate are connected with glue, and lower end is placed in the arc of support lower steel plate Between shape limiting device.
The support lower steel plate direction across bridge two sides are respectively arranged anti-pulling steel block, and for limiting, top beam body is biggish to stick up Song deformation;The support lower steel plate is respectively arranged arc-shaped limit device to two sides along bridge, for limiting circular ring shape rubber with groove Offset plate it is each to displacement.
The lower part of the support lower steel plate is fixed together with pier coping portion.
Further, it is equipped with a groove among the support upper steel plate, cylindrical steel core, steel core upper end are embedded in groove Higher than support upper steel plate 5mm-10mm, direction across bridge two sides are equipped with along bridge direction guiding rail.
Further, it is equipped with a groove in the middle part of middle steel plate, round polyfluortetraethylene plate, direction across bridge two sides are embedded in groove Equipped with groove.
Further, annular rubber plate with groove, top and the bottom are two blocks of circular ring shape steel plates for being surrounded by rubber, in Portion is annular rubber layer, and steel plate ring-type bandwidth is bigger than rubber layer, forms groove.
Further, side anti-pulling steel block, upper part are horizontal rectangular, and middle and lower part is inverted T-type structure.
Further, insertion is cylindrical in a groove positions steel core, and steel core is positioned after insertion can be slightly higher than support upper steel plate, In the raised area groove that embeddable leveling steel plate is held successfully in advance in construction and installation.On the one hand, this mounting means is advantageous In the centering of support and superstructure;On the other hand, the flat design of steel core can increase the stress surface of shearing, reduce shear stress, Promote the shear resistance of beam body and support junction.
The slipper being made of stainless steel plate, polyfluortetraethylene plate and middle steel plate, by mutually sliding adaptation beam body Along bridge to displacement demand.For polyfluortetraethylene plate in the circular groove of middle steel plate, middle steel plate provides smooth heavily fortified point for it Real supporting surface.In addition, middle steel plate direction across bridge two sides are provided with groove convenient for centering when its installation.
Annular rubber plate with groove is formed by circular ring shape steel plate and annular rubber layer clamping with groove, is directly put It is placed between arc-shaped limit device.The cyclic annular bandwidth of two blocks of steel plates is larger, forms groove.Surrounding is enclosed with rubber.Occurring to turn When dynamic, deformation occurs for rubber layer, and steel plate rotates with it.Design with groove is respectively provided with groove, Ke Yizeng at inner and outer rings When adding the rotation space of steel plate, while can reduce support receiving vertical load, the damage bulged in the middle part of rubber layer, raising is held Loading capability and durability.
It is disposed with direction across bridge anti-pulling steel block on support lower steel plate, is fixed by bolts in steel plate direction across bridge two sides.Ground When shake, the horizontal segment of anti-pulling steel block is directly buckled in the suitable bridge at support upper steel plate both ends on sliding rail, and limitation beam body is biggish Buckling deformation.
Further, under normal operating conditions, sliding rail is not closely to be engaged with anti-pulling steel block, vertically equal with direction across bridge Equipped with gap, the normal rotation and direction across bridge displacement of beam body are adapted to respectively.
It there also is provided arc-shaped limit device on support lower steel plate, be set to along bridge to two sides, be bonded rubber slab arrangement, arc Design so that limiting device is blocked the bottom of rubber slab, limit each to displacement of rubber slab.
The construction method of steel bridge or steel reinforced concrete composite beam bridge anti-pulling support described in the utility model, according to the following steps:(1) The groove of steel core insertion support upper steel plate will first be positioned;(2)Stainless steel plate and support upper steel plate are welded again;(3)It will be under support Steel plate is mounted in pier coping portion, installs arc-shaped limit device to two sides along bridge;(4)Annular rubber plate with groove lower end is put It is placed between arc-shaped limit device;(5)Middle steel plate is placed on annular rubber plate with groove;(6)In support lower steel plate Direction across bridge two sides are installed by anti-pulling steel block;(7)Metal is set between the groove and anti-pulling steel block of middle steel plate two sides Fixator, by middle steel plate centering;(8)Middle steel plate is connect by glue with annular rubber plate with groove;(9)It will justify Shape polyfluortetraethylene plate is embedded in the groove of middle steel plate;(10)Support upper steel plate is placed on middle steel plate, stainless steel is made Plate is contacted with polyfluortetraethylene plate;(11)Upper steel plate is connect by bolt with leveling steel plate, positioning steel core the raised area insertion The groove at steel plate center is leveled, guarantees that leveling steel plate and support upper steel plate fit closely, contact is uniform, reasonable stress, branch seat Set level;(12)Remove Metallic anchors.
The innovation of the utility model is as follows.
(1)It improves existing support and levels the contact surface design of steel plate.On the one hand, centering when construction is facilitated to install;Separately On the one hand, the shear resistance of support direction across bridge in earthquake is promoted.
(2)Support is set to have suitable bridge to sliding function by the sliding between polyfluortetraethylene plate and stainless steel.
(3)The groove design of rubber slab promotes its durability and rotation sensitivity.
(4)Using integral type loop fastener scheme, height of support is reduced, is easy to the maintenance replacement of support.
(5)The steel block of the utility model is directly arranged on support, on the one hand, steel block is compared to armored concrete Block shear resistance is substantially improved;On the other hand, steel block is laid in dispersion, and position of collision disperses, the collision on single steel block Power is smaller, keeps the collision stress effect for passing to pier bottom smaller, can effectively reduce support damage and pier bottom damage.
Detailed description of the invention
Fig. 1 is the three-dimensional organigram of the utility model entirety.
Fig. 2 is the direction across bridge layout drawing of the utility model.
Fig. 3 is partial enlarged view at the B of Fig. 2.
Fig. 4 is the upper bracket steel plate of the utility model and the structure arrangement detail of positioning steel core.
Arrangement sectional view of the Fig. 5 for upper steel plate in Fig. 3 structure in beam body bottom.
Fig. 6 is the suitable bridge of the utility model to layout drawing.
Fig. 7 be the utility model slipper along bridge to working state figure.
Fig. 8 is the arrangement detail of Metallic anchors when the utility model is installed.
Fig. 9 is the semi-cutaway of the utility model.
Figure 10 is partial enlarged view at the C of Fig. 9.
Figure 11 is working state figure of the utility model when larger buckling deformation occurs for beam body.
Figure 12 is the detail drawing of installation of steel block on support lower steel plate.
In figure:1 is support upper steel plate bolt, and 2 is position steel core, and 3 be support upper steel plate, and 4 be stainless steel plate, and 5 be poly- Tetrafluoroethene plate, 6 be middle steel plate, and 7 be the slipper of support, and 8 be annular rubber plate with groove, and 9 be steel under support Plate, 10 be side anti-pulling steel block, and 11 be arc-shaped limit device, and 12 be anchor bolt, and 13 be side steel block bolt, and 14 be annulus Shape steel plate, 15 be rubber layer, and 16 be floorings, and 17 be I-steel girder, and 18 be bridge pier, and 19 be I-steel bottom wing listrium, and 20 are Steel plate is leveled, 21 be Metallic anchors.
Specific embodiment
It is the cutting three-dimensional figure of a kind of steel bridge or steel reinforced concrete composite beam bridge anti-pulling support as shown in Figure 1.Its structure is mainly wrapped Include positioning steel core 2, support upper steel plate 3, the slipper 7 of support, annular rubber plate 8 with groove, support lower steel plate 9, side Face anti-pulling steel block 10 and arc-shaped limit device 11.
As shown in Figures 2 and 3, support is fixed between I-steel bottom wing listrium 19 and bridge pier 18 by bolt and anchor bolt. Wherein there are gap Ls 1, L2 between side anti-pulling steel block 10 and each component, adapt to direction across bridge displacement and beam body rotation respectively Demand.The bridge type that this example is selected is I-shaped steel plate combination beam bridge, and it is mixed that the support also can operate with other kinds of steel- Composite beam bridge or steel bridge.
As shown in figure 4,3 direction across bridge two sides of support upper steel plate be provided with along bridge to sliding rail, center be equipped with circular groove, For placement positioning steel core.Support upper steel plate is surrounded by 4 bolts hole.Steel core 2 is first placed in groove in the construction process In, then the bottom that support upper steel plate 3 is fixed on I-steel girder 17 by leveling steel plate 20 by four bolts 1.Cylindrical type The height of steel core 2 is slightly larger than depth of groove, and the height being higher by is in 5mm-10mm.
After installation is complete as shown in figure 5, positioning 2 the raised area of steel core makes to adjust by the groove of insertion leveling steel plate 20 Plain plate 20 is fitted closely with support upper steel plate 3.
As shown in Figure 6 and Figure 7, the slipper 7 of the utility model passes through between polyfluortetraethylene plate and stainless steel plate Sliding adapts to beam body along bridge to larger displacement.Wherein stainless steel plate and 3 lower end of support upper steel plate are welded, and polyfluortetraethylene plate is embedding In the groove of middle steel plate 6.In addition, being equipped with square groove in middle steel plate direction across bridge two sides.As shown in figure 8, middle steel plate 6 When installation, Metallic anchors 21 can be set between groove and anti-pulling steel block 10, centering when installing convenient for middle steel plate 6.
As shown in figure 9, annular rubber plate 8 with groove is the form of steel plate clamping rubber, rubber layer is arranged up and down Steel plate 14 effectively reinforcement structure anti-pressure ability, intermediate rubber layer 15 can adapt to the rotational deformation of beam body.Further, band groove 8 upper end of annular rubber plate connect with middle steel plate by glue.It is as shown in Figure 10 stainless steel plate and polyfluortetraethylene plate Contact surface detail drawing.
As shown in FIG. 11 and 12, support lower steel plate is equipped with arc-shaped limit device 11, and limiting device can block with groove The bottom of annular rubber plate 8 limits each to displacement of rubber slab.In addition, support lower steel plate direction across bridge two sides are additionally provided with tension Steel block 10 is pulled out, the middle and lower part of steel block 10 is inverted T-type structure, is fixed on support lower steel plate 9 by 4 bolts 13.It is this Design can increase shearing stress surface, enhancing structure shear resistance.Further, as shown in figure 11, anti-pulling steel block 10 is upper Portion's structure can clasp two side rails of support upper steel plate 3 in earthquake, limit the biggish buckling deformation of beam body.

Claims (5)

1. a kind of suitable for steel bridge or the anti-pulling support of steel reinforced concrete composite beam bridge, it is characterised in that:Main includes positioning steel core, branch Seat upper steel plate, the slipper of support, annular rubber plate with groove, support lower steel plate, side anti-pulling steel block and arc Shape limiting device;
The support upper steel plate is bolted on beam body bottom;
The positioning steel core is fixed between the leveling steel plate of beam body bottom and support upper steel plate embedded in support upper steel plate center, Top is slightly above support upper steel plate, and the raised area is among the groove of leveling steel plate;
The slipper is located at below support upper steel plate, and upper part is one piece of stainless steel plate, and middle part is one piece of round polytetrafluoro Vinyl plate, lower part are one piece of middle steel plates for being provided with circular groove;Polyfluortetraethylene plate is embedded in middle steel plate, connects with stainless steel plate Touching, stainless steel plate and support upper steel plate weld;
The annular rubber plate with groove and middle steel plate are connected with glue, and lower end is placed in the arc limit of support lower steel plate Between the device of position;
The support lower steel plate direction across bridge two sides are respectively arranged anti-pulling steel block, for limiting the buckling deformation of top beam body; The support lower steel plate is respectively arranged arc-shaped limit device to two sides along bridge, for limiting each of annular rubber plate with groove To displacement;
The lower part of the support lower steel plate is fixed together with pier coping portion.
2. according to claim 1 a kind of suitable for steel bridge or the anti-pulling support of steel reinforced concrete composite beam bridge, it is characterised in that: It is equipped with a groove among the support upper steel plate, cylindrical steel core is embedded in groove, steel core upper end is higher than support upper steel plate 5mm-10mm, direction across bridge two sides are equipped with along bridge direction guiding rail.
3. according to claim 1 a kind of suitable for steel bridge or the anti-pulling support of steel reinforced concrete composite beam bridge, it is characterised in that: It is equipped with a groove in the middle part of middle steel plate, round polyfluortetraethylene plate is embedded in groove, direction across bridge two sides are equipped with groove.
4. according to claim 1 a kind of suitable for steel bridge or the anti-pulling support of steel reinforced concrete composite beam bridge, it is characterised in that: Annular rubber plate with groove, top and the bottom are two blocks of circular ring shape steel plates for being surrounded by rubber, and middle part is annular rubber layer, Steel plate ring-type bandwidth is bigger than rubber layer, forms groove.
5. according to claim 1 a kind of suitable for steel bridge or the anti-pulling support of steel reinforced concrete composite beam bridge, it is characterised in that: Side anti-pulling steel block, upper part are horizontal rectangular, and middle and lower part is inverted T-type structure.
CN201720810321.7U 2017-07-05 2017-07-05 It is a kind of suitable for steel bridge or the anti-pulling support of steel reinforced concrete composite beam bridge Expired - Fee Related CN208136711U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107178030A (en) * 2017-07-05 2017-09-19 南昌大学 A kind of anti-pulling bearing and its construction method for being applied to steel bridge or steel reinforced concrete composite beam bridge
CN109629404A (en) * 2018-12-28 2019-04-16 同济大学 A kind of drag-line limit compound section reduces the large deformation rubber support of shear stiffness
CN109826086A (en) * 2019-01-21 2019-05-31 株洲时代新材料科技股份有限公司 A kind of friction pendulum support

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107178030A (en) * 2017-07-05 2017-09-19 南昌大学 A kind of anti-pulling bearing and its construction method for being applied to steel bridge or steel reinforced concrete composite beam bridge
CN109629404A (en) * 2018-12-28 2019-04-16 同济大学 A kind of drag-line limit compound section reduces the large deformation rubber support of shear stiffness
CN109826086A (en) * 2019-01-21 2019-05-31 株洲时代新材料科技股份有限公司 A kind of friction pendulum support

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Granted publication date: 20181123