CN104878686B - Prevent the construction method of Curved Beam Bridge horizontal comparison device - Google Patents
Prevent the construction method of Curved Beam Bridge horizontal comparison device Download PDFInfo
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- CN104878686B CN104878686B CN201510302494.3A CN201510302494A CN104878686B CN 104878686 B CN104878686 B CN 104878686B CN 201510302494 A CN201510302494 A CN 201510302494A CN 104878686 B CN104878686 B CN 104878686B
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Abstract
A kind of construction method preventing Curved Beam Bridge horizontal comparison device, its device includes the outer assembly containing lower member and the inner assembly containing upper member.Upper and lower component is all in the L-shaped being made up of planar attachment plate and upright main support.Two sides, upright main support left and right is that upper and lower curvature is equal and horizontal curvature direction with Curved Beam Bridge and the consistent curved surface of bending radius.Inside and outside assembly and between them the rubber steel of the filling zoarium that hardens all be seated between bridge pier and beam body and transmit beam body horizontal displacement.The thin tail sheep of beam body is hardened fit the prevention by rubber steel；Big displacement is retrained by lower member and absorbs permission value.Displacement destroy rubber steel harden zoarium time, change and harden zoarium to stop excessive displacement according to calculating the rubber steel that re-designs.The device installed by the inventive method can effectively stop beam body horizontal displacement and seismic fall beam, its maintaining is convenient.Assembly of the invention is installed on original bridge pier platform cap, reduces the cost increasing bridge pier platform cap size.
Description
Technical field
The present invention relates to the construction method of the protection device of a kind of beam bridge, particularly relate to a kind of construction method preventing Curved Beam Bridge horizontal comparison device.
Background technology
Owing to communication function and the restriction of orographic condition, urban viaduct and viaduct many employings curved bridge, abnormity broaden bridge or ramp bridge.Curved Beam Bridge especially Sharp-Radius Curved Bridges is because of the feature of structure stress, it is easy to occur that such as continuous beam the inner side of curve end bearing comes to nothing or curve beam body is to diseases such as curve outer radial entirety sidesways.Curved Beam Bridge beam body radial deflection disease can not be recovered after occurring, and can only increase year by year.Investigation finds, the grade separation Curved Beam Bridge of Shenzhen's radius 250 meters soon, records accumulative horizontal comparison and reaches 50cm.After Curved Beam Bridge beam body generation sidesway, the axial ratio of beam body and the horizontal wall inscription of bridge floor can occur to change accordingly therewith, make beam body stress change, and aggravation disease of beam body converts to unfavorable direction, after the outer side-play amount of beam body runs up to a certain degree, beam body just has unstability, the possibility coming off and tumbling.
At present, Curved Beam Bridge top, downtown area beam body mostly is skew web plate box-beam structure, bottom is some independent bridge pier structures, tradition prevents the device one of Curved Beam Bridge beam body horizontal comparison from being employing hold-down support between beam body and bridge pier, and two is that direction across bridge both sides arrange anti-horizontal comparison block on bridge pier platform cap.The limited amount that hold-down support is arranged on continuous beam, it is impossible to restrictive curve beam bridge horizontal comparison.Block is set in standing pier platform cap direction across bridge both sides to prevent Curved Beam Bridge horizontal comparison, needs to add the bridge pier platform cap direction across bridge size of bridge.Add the bridge pier platform cap direction across bridge size of bridge, not only affect bridge attractive in appearance but also increase construction costs.It addition, above-mentioned anti-side shifter, later period maintenance maintenance the most more difficulty.
Summary of the invention
It is an object of the invention to provide a kind of simple in construction, the anti-horizontal comparison of beam body is effective, the construction method preventing Curved Beam Bridge horizontal comparison device that maintenance is easy.
It is an object of the invention to be capable of.The device preventing Curved Beam Bridge horizontal comparison of the present invention includes at least two tradition bearing used on each bridge pier platform cap of Curved Beam Bridge bottom.nullThe present invention prevents the device characteristic of Curved Beam Bridge horizontal comparison to be: above the bridge pier platform cap of the some bridge piers in described Curved Beam Bridge bottom, outside is respectively and fixedly provided with a bridge pier pre-embedded steel slab，Bridge pier pre-embedded steel slab is connected lower member by pre-embedded bolt by nut，Described bridge pier pre-embedded steel slab、Pre-embedded bolt、Nut、Lower member constitutes outer assembly，Pre-embedded steel slab in corresponding position is fixed with a beam inside lower member in Curved Beam Bridge upper beam body，In beam pre-embedded steel slab by pre-embedded bolt in beam by beam body nut at beam body external connection upper member，Pre-embedded steel slab in beam、Pre-embedded bolt in beam、Beam body nut、Upper member constitutes inner assembly，Described lower member and upper member are the most L-shaped，And lower member is made up of lower member planar attachment plate and lower member upright main support，Upper member is made up of upper member planar attachment plate and upper member upright main support，Described lower member planar attachment plate is fixed on above bridge pier platform cap，Described upper member planar attachment plate is fixed on bottom beam body，Described lower member upright main support upper surface is fitted and connected with beam body，Described upper member upright main support lower surface is fitted and connected with bridge pier platform cap，It is filled with rubber steel between described lower member upright main support and upper member upright main support to harden zoarium，Described outer assembly、Inner assembly and rubber steel harden the fit device constituting and preventing Curved Beam Bridge horizontal comparison，The device both sides preventing Curved Beam Bridge horizontal comparison are respectively provided with at least one bearing，Prevent the device of Curved Beam Bridge horizontal comparison and at least two bearing from jointly supporting the beam body of Curved Beam Bridge.
The present invention prevents the device of Curved Beam Bridge horizontal comparison, the height of wherein said lower member and upper member is all equal with described height of support, side, two, the left and right of described lower member upright main support or upper member upright main support is the curved surface that curvature the most everywhere is equal, the central spot of described lower member upright main support bending radius is in the opposite side of lower member planar attachment plate, and the central spot of described upper member upright main support bending radius is in upper member planar attachment plate the same side.
The present invention prevents the device of Curved Beam Bridge horizontal comparison, and wherein said lower member upright main support is consistent with the bending direction of Curved Beam Bridge with the bending direction of upper member upright main support curved surface, and the bending radius of curved surface is equal with the horizontal curvature radius of Curved Beam Bridge.
The construction method preventing Curved Beam Bridge horizontal comparison device of the present invention through the following steps that complete, including:
Step 1: calculated curve horizontal loading on bridge value；Calculate the tolerable injury level shift value of beam body at corresponding bridge pier platform crown portion；According to above-mentioned value, horizontal shear force that the horizontal loading of calculated curve beam bridge produces also determines in bridge pier pre-embedded steel slab, pre-embedded bolt, nut, lower member, beam in pre-embedded steel slab, beam that pre-embedded bolt, beam body nut, upper member and rubber steel harden fit material trademark, specifications and models, design size and the quantity used respectively；
Step 2: according to the design of Curved Beam Bridge, the model of selected bearing, and foundation the high computational lower member of bearing, the vertical height of upper member.
Step 3: according to step 1, the result of calculation of step 2, designs and produces in bridge pier pre-embedded steel slab, pre-embedded bolt, nut, lower member, beam pre-embedded bolt, beam body nut, upper member and rubber steel in pre-embedded steel slab, beam and hardens zoarium.
Step 4: during the bridge pier platform cap pouring construction of Curved Beam Bridge, bridge pier pre-embedded steel slab, pre-embedded bolt, nut are combined, according to design size, bridge pier pre-embedded steel slab it is embedded in the outside of the bridge pier platform cap of Curved Beam Bridge and fixes with the embedded bar in bridge pier platform cap, being connected on bridge pier pre-embedded steel slab constitute outer assembly by lower member by lower member planar attachment plate with pre-embedded bolt, nut afterwards；During prefabrication of beam construction, pre-embedded bolt, beam body nut in pre-embedded steel slab, beam in beam are combined, fix in pre-embedded steel slab in beam being embedded in beam body according to design size and with the embedded bar of beam body, by upper member planar attachment plate, upper member is connected to bottom beam body constitute inner assembly with pre-embedded bolt in beam, beam body nut afterwards.
Step 5: lift (or cast-in-place) beam body on bridge pier platform cap, during lifting (or cast-in-place) beam body, the inner assembly location dimension inside the place of should ensure that assembly outside is correct, the most also should ensure that lower member upright main support, upper member upright main support bending direction consistent with the bending direction of Curved Beam Bridge.
Step 6: place the rubber steel made by regulation between inner assembly and outer assembly and harden zoarium.
The present invention prevents the construction method of Curved Beam Bridge horizontal comparison device, when wherein said bridge pier pre-embedded steel slab or beam body pre-embedded steel slab are pre-buried, its edge all should be more than 5cm far from concrete edge, when upper member planar attachment plate connects, its edge all should be greater than 5cm far from beam base concrete edge, when lower member planar attachment plate connects, its edge all should be more than 5cm far from bridge pier platform cap concrete edge.
The present invention prevents the device of Curved Beam Bridge horizontal comparison and construction method difference from prior art to be in the device that the present invention prevents Curved Beam Bridge horizontal comparison, constituted outer assembly by bridge pier pre-embedded steel slab, pre-embedded bolt, nut, lower member, pre-embedded bolt, beam body nut, upper member in pre-embedded steel slab, beam in beam constitute inner assembly.Lower member is in the L-shaped being made up of lower member planar attachment plate and lower member upright main support, and upper member is in the L-shaped being made up of upper member planar attachment plate and upper member upright main support.Upper member upright main support, the side, two, left and right of lower member upright main support are all the curved surfaces that curvature is equal the most everywhere, the bending radius of this curved surface is equal with the horizontal curvature radius of Curved Beam Bridge, consistent with the bending direction of Curved Beam Bridge, to ensure that the constraint of beam body is side horizontal displacement constraint, it is to avoid the constraint in unfavorable direction makes beam body and bridge pier platform cap destroy.It is filled with rubber steel between upper member upright main support and lower member upright main support to harden zoarium.Outer assembly, inner assembly and rubber steel harden the fit device constituting and preventing Curved Beam Bridge horizontal comparison.The most each bearing that at least one tradition use is set in the device both sides preventing Curved Beam Bridge horizontal comparison.Prevent the device of Curved Beam Bridge horizontal comparison and the bearing of both sides from jointly supporting the beam body of Curved Beam Bridge.Between this device is placed on bottom bridge pier platform cap and beam body, directly transmission beam body horizontal displacement.When there is beam body horizontal comparison under Curved Beam Bridge is due to vehicular load and difference variation, its less horizontal displacement is undertaken by the zoarium that hardens of the rubber steel between inner assembly and outer assembly；Greater level displacement is retrained by the lower member outside bridge pier platform cap and is absorbed and necessarily allows value.When beam body displacement cause rubber steel harden fit destruction time, harden fit destroyed deciding degree horizontal displacement value and horizontal loading size according to rubber steel, and change and harden zoarium to stop excessive lateral displacement according to calculating the rubber steel re-designed.
The present invention prevent the device of Curved Beam Bridge horizontal comparison and construction method are described further below in conjunction with the accompanying drawings.
Accompanying drawing explanation
Fig. 1 is the apparatus structure schematic diagram that the present invention prevents Curved Beam Bridge horizontal comparison.
Fig. 2 is the E-E cross-sectional view in Fig. 1.
Fig. 3 is the upper member structural representation that the present invention prevents in the device of Curved Beam Bridge horizontal comparison.
Fig. 4 is upper member structure elevational schematic view.
Fig. 5 is the lower member structural representation that the present invention prevents in the device of Curved Beam Bridge horizontal comparison.
Fig. 6 is lower member structure schematic top plan view.
Detailed description of the invention
As shown in Figure 1 and Figure 2, in the case of using at least two tradition bearing 1 on Curved Beam Bridge bottom each bridge pier platform cap 2, the detailed description of the invention of the present invention is:
On the bridge pier platform cap 2 of the some bridge piers in Curved Beam Bridge bottom, outside is respectively and fixedly provided with a bridge pier pre-embedded steel slab 3.Bridge pier pre-embedded steel slab 3 is connected lower member 6 by pre-embedded bolt 4 by nut 5.Bridge pier pre-embedded steel slab 3, pre-embedded bolt 4, nut 5, lower member 6 constitute outer assembly.Pre-embedded steel slab 8 in correspondence is fixed with a beam on the left of lower member 6 in Curved Beam Bridge top beam body 7.In beam, pre-embedded steel slab 8 passes through pre-embedded bolt 4-1 by beam body nut 5-1 at beam body 7 external connection upper member 9.In beam, in pre-embedded steel slab 8, beam, pre-embedded bolt 4-1, beam body nut 5-1, upper member 9 constitute inner assembly.Lower member 6 and upper member 9 are the most L-shaped, and lower member 6 is made up of lower member planar attachment plate 6-1 and lower member upright main support 6-2, and upper member 9 is made up of upper member planar attachment plate 9-1 and upper member upright main support 9-2.Lower member planar attachment plate 6-1 is fixed on above bridge pier platform cap 2, and lower member upright main support 6-2 upper surface is fitted and connected with beam body 7.Upper member planar attachment plate 9-1 is fixed on bottom beam body 7, and upper member upright main support 9-2 lower surface is fitted and connected with bridge pier platform cap 2.It is filled with rubber steel between lower member upright main support 6-2, upper member upright main support 9-2 and hardens fit 10.Traditional bearing 1 is set on the left of inner assembly.Outer assembly, inner assembly and rubber steel harden and fit 10 constitute the device preventing Curved Beam Bridge horizontal comparison.The device both sides preventing Curved Beam Bridge horizontal comparison are respectively provided with at least one bearing 1, prevent the device of Curved Beam Bridge horizontal comparison and at least two bearing 1 from jointly supporting the beam body 7 of Curved Beam Bridge.
As it is shown in figure 1, the height of component 6 and upper member 9 is all the most equal with described bearing 1.
As shown in Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, side, two, the left and right of lower member upright main support 6-2 or upper member 9 upright main support 9-2 is the curved surface that curvature the most everywhere is equal.The central spot of lower member upright main support 6-2 bending radius is in the opposite side of lower member planar attachment plate 6-1.The central spot of upper member upright main support 9-2 bending radius is in upper member planar attachment plate 9-1 the same side.
As shown in Figure 1 and Figure 2, lower member upright main support 6-2 is consistent with the bending direction of Curved Beam Bridge with the bending direction of upper member upright main support 9-2 curved surface, and the bending radius of curved surface is equal with the horizontal curvature radius of Curved Beam Bridge.
The construction method preventing Curved Beam Bridge horizontal comparison device of the present invention is through the following steps that complete:
Step 1: calculated curve horizontal loading on bridge value；Calculate the tolerable injury level shift value of beam body 7 at corresponding bridge pier platform cap 2 top；According to above-mentioned value, horizontal shear force that the horizontal loading of calculated curve beam bridge produces also determines in bridge pier pre-embedded steel slab 3, pre-embedded bolt 4, nut 5, lower member 6, beam in pre-embedded steel slab 8, beam that pre-embedded bolt 4-1, beam body nut 5-1, upper member 9 and rubber steel harden fit 10 material trademark, specifications and models, design size and the quantity used respectively.
Step 2: according to the design of Curved Beam Bridge, the model of selected bearing 1 and quantity, and foundation the high computational lower member 6 of bearing 1, the vertical height of upper member 9.
Step 3: according to step 1, the result of calculation of step 2, designs and produces in bridge pier pre-embedded steel slab 3, pre-embedded bolt 4, nut 5, lower member 6, beam pre-embedded bolt 4-1, beam body nut 5-1, upper member 9 and rubber steel in pre-embedded steel slab 8, beam and hardens fit 10.
Step 4: during bridge pier platform cap 2 pouring construction of Curved Beam Bridge, bridge pier pre-embedded steel slab 3, pre-embedded bolt 4, nut 5 are combined, according to design size, bridge pier pre-embedded steel slab 3 it is embedded in the outside of the bridge pier platform cap 2 of Curved Beam Bridge and fixes with the embedded bar in bridge pier platform cap 2, being connected on bridge pier pre-embedded steel slab 3 constitute outer assembly by lower member 6 by lower member planar attachment plate 6-1 with pre-embedded bolt 4, nut 5 afterwards.During beam body 7 prefabricated construction, pre-embedded bolt 4-1, beam body nut 5-1 in pre-embedded steel slab in beam 8, beam are combined, in pre-embedded steel slab in beam 8 being embedded in beam body 7 according to design size and fix with the embedded bar in beam body 7, pass through upper member planar attachment plate 9-1 with pre-embedded bolt 4-1, beam body nut 5-1 in beam afterwards and upper member 9 is connected to bottom beam body 7 constitute inner assembly.
Step 5: lift (or cast-in-place) beam body 7 on bridge pier platform cap 2, during lifting beam body 7, the inner assembly location dimension inside the place of should ensure that assembly outside is correct, the most also should ensure that lower member upright main support 6-2, upper member 9-2 bending direction consistent with the bending direction of Curved Beam Bridge.
Step 6: place the rubber steel made by regulation between inner assembly and outer assembly and harden fit 10.
The present invention prevents in the construction method of Curved Beam Bridge horizontal comparison device, and when in bridge pier pre-embedded steel slab 3 or beam, pre-embedded steel slab 8 is pre-buried, its edge all should be more than 5cm far from concrete edge.When upper member planar attachment plate 9-1 connects, when its edge all should be greater than 5cm, lower member planar attachment plate 6-1 connection far from beam base concrete edge, its edge all should be more than 5cm far from bridge pier platform cap 2 concrete edge.
The device preventing Curved Beam Bridge horizontal comparison of the present invention is to using laminated rubber bearing and pot rubber bearing to prevent the one of Curved Beam Bridge horizontal comparison from supplementing.Utilizing the present invention to prevent the device of Curved Beam Bridge horizontal comparison and construction method from building Curved Beam Bridge, can effectively stop Curved Beam Bridge beam body horizontal comparison, slow down Curved Beam Bridge horizontal comparison disease and increase the weight of, it can also stop seismic level to fall beam simultaneously.The present invention is utilized to prevent the device of Curved Beam Bridge horizontal comparison and construction method from building Curved Beam Bridge, it is not necessary to increasing the size of the bridge pier platform cap of Curved Beam Bridge, only install on original bridge pier platform cap, construction costs is lower than the size increasing bridge pier platform cap.Harden fit 10 owing to being provided with removable rubber steel, facilitate the maintenance of Curved Beam Bridge.
Embodiment described above is only to be described the preferred embodiment of the present invention; not the scope of the present invention is defined; on the premise of designing spirit without departing from the present invention; various deformation that technical scheme is made by those of ordinary skill in the art and improvement, all should fall in the protection domain that claims of the present invention determines.
Claims (4)
- null1. the construction method preventing Curved Beam Bridge horizontal comparison device，It is characterized in that: bridge pier platform cap (2) of the some bridge piers in Curved Beam Bridge bottom outside above is respectively and fixedly provided with a bridge pier pre-embedded steel slab (3)，Bridge pier pre-embedded steel slab (3) is connected lower member (6) by pre-embedded bolt (4) by nut (5)，Described bridge pier pre-embedded steel slab (3)、Pre-embedded bolt (4)、Nut (5)、Lower member (6) constitutes outer assembly，At inherent lower member (6) inner side, Curved Beam Bridge top beam body (7), correspondence is fixed with pre-embedded steel slab (8) in a beam，In beam pre-embedded steel slab (8) by pre-embedded bolt (4-1) in beam by beam body nut (5-1) at beam body (7) external connection upper member (9)，Pre-embedded steel slab (8) in beam、Pre-embedded bolt (4-1) in beam、Beam body nut (5-1)、Upper member (9) constitutes inner assembly，Described lower member (6) and upper member (9) are the most L-shaped，And lower member (6) is made up of lower member planar attachment plate (6-1) and lower member upright main support (6-2)，Upper member (9) is made up of upper member planar attachment plate (9-1) and upper member upright main support (9-2)，Described lower member planar attachment plate (6-1) is fixed on bridge pier platform cap (2) above，The upper member planar attachment plate (9-1) of described upper member (9) is fixed on beam body (7) bottom，Described lower member upright main support (6-2) upper surface is fitted and connected with beam body (7)，Described upper member upright main support (9-2) lower surface is fitted and connected with bridge pier platform cap (2)，It is filled with rubber steel between described lower member upright main support (6-2) and upper member upright main support (9-2) to harden zoarium (10)，Described outer assembly、Inner assembly and the rubber steel zoarium (10) that hardens constitutes and prevents the device of Curved Beam Bridge horizontal comparison，The described device both sides preventing Curved Beam Bridge horizontal comparison are respectively provided with at least one bearing (1)，Prevent device and the beam body (7) of at least two bearing (1) support Curved Beam Bridge jointly of Curved Beam Bridge horizontal comparison，Its construction method comprises the following steps:Step 1: calculated curve horizontal loading on bridge value；Calculate the tolerable injury level shift value of beam body (7) at corresponding bridge pier platform cap (2) top；According to above-mentioned value, horizontal shear force that the horizontal loading of calculated curve beam bridge produces also determines in bridge pier pre-embedded steel slab (3), pre-embedded bolt (4), nut (5), lower member (6), beam in pre-embedded steel slab (8), beam that pre-embedded bolt (4-1), beam body nut (5-1), upper member (9) and rubber steel harden material trademark, specifications and models, design size and the quantity that zoarium (10) uses respectively；Step 2: according to the design of Curved Beam Bridge, the model of selected bearing (1) and quantity, and the high computational lower member (6) of foundation bearing (1), the vertical height of upper member (9)；Step 3: according to step 1, the result of calculation of step 2, designs and produces in bridge pier pre-embedded steel slab (3), pre-embedded bolt (4), nut (5), lower member (6), beam pre-embedded bolt (4-1), beam body nut (5-1), upper member (9) and rubber steel in pre-embedded steel slab (8), beam and hardens zoarium (10)；Step 4: during bridge pier platform cap (2) pouring construction of Curved Beam Bridge, bridge pier pre-embedded steel slab (3), pre-embedded bolt (4), nut (5) are combined, according to design size, bridge pier pre-embedded steel slab (3) it is embedded in the outside of bridge pier platform cap (2) of Curved Beam Bridge and fixes with the embedded bar in bridge pier platform cap (2), by lower member planar attachment plate (6-1), lower member (6) being connected to bridge pier pre-embedded steel slab (3) with pre-embedded bolt (4), nut (5) afterwards and above constitute outer assembly；During beam body (7) prefabricated construction, pre-embedded bolt (4-1), beam body nut (5-1) in pre-embedded steel slab in beam (8), beam are combined, in pre-embedded steel slab in beam (8) being embedded in beam body (7) according to design size and fix with the embedded bar in beam body (7), by upper member planar attachment plate (9-1), upper member (9) is connected to beam body (7) bottom with pre-embedded bolt in beam (4-1), beam body nut (5-1) afterwards and constitutes inner assembly；Step 5: to the upper lifting of bridge pier platform cap (2) or cast-in-place beam body (7), lifting or during cast-in-place beam body (7) inner assembly location dimension inside the place's of should ensure that assembly outside correct, the most also should ensure that lower member upright main support (6-2), upper member upright main support (9-2) bending direction consistent with the bending direction of Curved Beam Bridge；Step 6: place the rubber steel made by regulation between inner assembly and outer assembly and harden zoarium (10).
- The construction method preventing Curved Beam Bridge horizontal comparison device the most according to claim 1, it is characterized in that: the height of described lower member (6) and upper member (9) is all the most equal with described bearing (1), the side, two, left and right of described lower member upright main support (6-2) or upper member upright main support (9-2) is the curved surface that curvature the most everywhere is equal, the central spot of described lower member upright main support (6-2) bending radius is in the opposite side of lower member planar attachment plate (6-1), the central spot of described upper member upright main support (9-2) bending radius is in upper member planar attachment plate (9-1) the same side.
- The construction method preventing Curved Beam Bridge horizontal comparison device the most according to claim 1 and 2, it is characterized in that: described lower member upright main support (6-2) is consistent with the bending direction of Curved Beam Bridge with the bending direction of the curved surface of upper member upright main support (9-2), and the bending radius of curved surface is equal with the horizontal curvature radius of Curved Beam Bridge.
- The construction method preventing Curved Beam Bridge horizontal comparison device the most according to claim 1, it is characterized in that: when in bridge pier pre-embedded steel slab (3) or beam, pre-embedded steel slab (8) is pre-buried, its edge all should be more than 5cm far from concrete edge, when upper member planar attachment plate (9-1) connects, its edge all should be greater than 5cm far from beam base concrete edge, and when lower member planar attachment plate (6-1) connects, its edge all should be more than 5cm far from bridge pier platform cap (2) concrete edge.
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| CN205529849U (en) * | 2015-11-02 | 2016-08-31 | 柳州东方工程橡胶制品有限公司 | Bridge stop device |
| CN106120538B (en) * | 2016-06-27 | 2019-04-23 | 中国一冶集团有限公司 | A kind of bridge shear key and installation method |
| CN109610298B (en) * | 2018-12-06 | 2024-01-02 | 大连理工大学 | Pin shaft type anti-seismic constraint system and method for curved beam bridge |
| CN109629463B (en) * | 2019-01-23 | 2023-12-08 | 河南中平交科研究设计院有限公司 | Bridge end reinforcing structure and bridge plate end crack treatment process |
| CN114953122B (en) * | 2022-06-20 | 2023-12-15 | 中交一公局西南工程有限公司 | Cast-in-situ multifunctional splicing die for small-radius curved beam bridge |
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| KR100635098B1 (en) * | 2005-06-27 | 2006-10-17 | 연세대학교 산학협력단 | Girder bridge protection device using sacrifice means |
| CN202626808U (en) * | 2012-06-11 | 2012-12-26 | 中国水电顾问集团贵阳勘测设计研究院 | Beam-type steel bridge |
| CN103835226B (en) * | 2014-03-21 | 2015-09-30 | 北京市市政工程设计研究总院有限公司 | Plane curve beam bridge anti-creep moves stopping means |
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