WO2021022671A1 - 一种预防大纵坡高墩桥桥墩偏位装置 - Google Patents

一种预防大纵坡高墩桥桥墩偏位装置 Download PDF

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Publication number
WO2021022671A1
WO2021022671A1 PCT/CN2019/111167 CN2019111167W WO2021022671A1 WO 2021022671 A1 WO2021022671 A1 WO 2021022671A1 CN 2019111167 W CN2019111167 W CN 2019111167W WO 2021022671 A1 WO2021022671 A1 WO 2021022671A1
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Prior art keywords
downslope
upslope
pier
limiter
slope
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PCT/CN2019/111167
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English (en)
French (fr)
Inventor
梁晓东
杨振武
周俊华
谢鸿
金鑫
Original Assignee
湖南联智桥隧技术有限公司
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Priority claimed from CN201910725496.1A external-priority patent/CN110396913B/zh
Priority claimed from CN201921271064.XU external-priority patent/CN210827076U/zh
Application filed by 湖南联智桥隧技术有限公司 filed Critical 湖南联智桥隧技术有限公司
Publication of WO2021022671A1 publication Critical patent/WO2021022671A1/zh

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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

Definitions

  • the invention relates to the technical field of bridge engineering, in particular to a device for preventing the piers of a large longitudinal slope and high pier bridge from being deviated.
  • the high pier deflection exceeded the limit in one or two years after the operation, and the cover beam and the main The longitudinal deflection of the beam in the upslope direction exceeds the limit, causing damage to the bridge support, damage to the expansion joints, increased unfavorable force on the bottom of high piers, sharp increase in bending moment stress, cracks at the bottom of the pier, and a series of diseases such as a decrease in the bearing capacity of the bridge .
  • Treatment of bridge pier deviation and reinforcement limit construction costs are high, and the construction is difficult, causing huge economic losses and economic benefits to the operating unit and the local economy.
  • the Chinese patent application number 201510415496.3 discloses a spring stopper for the displacement of the top of a high-pier bridge pier, but it has the following shortcomings:
  • the high pier deflection exceeds the limit, and the longitudinal deflection of the cap beam and the main girder in the upslope direction exceeds the limit.
  • the purpose of the present invention is to provide a device for preventing pier deflection of a large longitudinal slope and high pier bridge.
  • the specific technical solutions are as follows:
  • the large longitudinal slope high pier bridge includes a pier, a cover beam, an upslope main beam and a downslope main beam.
  • the cover beam is arranged on the bridge pier, and the upper
  • the slope main beam is set on the cap beam through the upslope support
  • the downslope main beam is set on the cap beam through the downslope support.
  • the device for preventing pier deflection of large longitudinal slope and high pier bridge includes at least one set of deflection preventing device, the deflection preventing device is fixedly arranged on the cover beam, and the deflection preventing device is provided with a downslope direction A stopper, the downslope main beam is provided with a downslope transverse diaphragm, the downslope stopper is located on the side of the downslope transverse diaphragm away from the upslope main beam, and passes through the downslope stopper Cooperating with the down-slope diaphragm to realize automatic correction of the deviated bridge pier, so as to prevent excessive deflection of the bridge pier.
  • the anti-deflection device includes a downslope limiter, and the downslope limiter includes a downslope limiter body and a lower slope arranged on the downslope limiter body.
  • a slope stopper, the downward slope stopper is arranged on the cover beam through a downward slope limiter body.
  • the anti-deflection device further includes an upslope limiter
  • the upslope limiter includes an upslope limiter body and an upslope limiter body.
  • the upslope stopper is provided with an upslope transverse partition on the upslope main beam, the upslope stopper is arranged on the cover beam through the upslope stopper body, and the upper The slope stop is located on the side of the upslope transverse diaphragm away from the downslope main girder, and the cooperation of the upslope diaphragm and the upslope stop prevents excessive correction of the bridge pier.
  • the upper slope limiter body and the downslope limiter body are respectively arranged on both sides of the length of the cover beam, and the upslope limiter body and the downslope limiter body
  • the body of the part is L-shaped structure and symmetrically arranged.
  • the upslope limiter body cooperates with a set of right-angle edges on the cover beam to realize the upslope limiter body is set on the cover beam, and the downslope limiter body is arranged on the cover beam.
  • the positioning member body cooperates with another set of right-angled edges on the cover beam to realize the downward slope direction limiting member body is arranged on the cover beam.
  • the anti-deflection device further includes at least one tie rod and fasteners arranged at both ends of the tie rod, and both the upslope stopper body and the downslope stopper body are provided with Through holes, the pull rod sequentially penetrates the through holes on the upslope limiter body and the downslope limiter body, and cooperates with the fasteners at both ends to realize the upslope limiter body and the downslope limiter body Clamp the cover beam.
  • the downslope stopper and the upslope stopper are respectively arranged on the downslope limiter body and the upslope limiter body on the cover beam by welding.
  • the material of the upslope limiter body, the downslope limiter body, the downslope stop and the upslope stop are all high-strength steel plates.
  • the device for preventing large longitudinal slope and high pier bridge pier deflection of the present invention includes at least one set of anti-deflection devices, through the downslope stopper on the anti-deflection device and the downslope crosswise on the main girder.
  • the clapboard cooperates to realize automatic correction of the deviated bridge piers, to prevent excessive deflection of the bridge piers, and to prevent the unfavorable force on the bottom of the pier due to excessive displacement of the pier top.
  • the anti-deflection device of the present invention can solve the current situation that the piers of high-pier bridges are inclined upward during the thermal expansion and contraction of the bridge, and prevent the bridge from falling off due to excessive bridge deviation.
  • the invented anti-deflection device can realize automatic correction of bridge piers, eliminates the need for manual correction procedures after bridge piers are deviated, and can save manpower and cost.
  • the anti-deflection device of the present invention also includes an upslope limiter.
  • the upslope limiter includes an upslope limiter body and an upslope direction set on the upslope limiter body. Stopper, the upslope diaphragm and the upslope stopper can prevent over-correction during the process of correcting the pier, that is, the downward diaphragm and the downward stopper cooperate to correct the pier If the bridge piers excessively move downhill, the uphill diaphragm and the uphill stop will contact and limit the position.
  • the cooperation of the upslope stopper and the downslope stopper can prevent the main girder of the bridge from falling off (that is, preventing the main girder uphill and/or the main girder and the bridge pier from falling off), especially It can prevent the main beam from falling off during an earthquake.
  • the upslope limiter body and the downslope limiter body in the anti-deflection device of the present invention are both L-shaped structures, and the upslope limiter body is realized by tie rods and fasteners Clamping the cover beam with the body of the downslope limiter, the structure is simple, reliable, easy to install, and convenient to determine the installation position of the anti-deflection device according to actual needs, ensuring that the anti-deflection device of the present invention is stable and integrated with the cover beam , To ensure the reliability of the anti-offset device.
  • the downslope stopper and the upslope stopper are both correspondingly arranged on the downslope limiter body and the upslope limiter on the cover beam by welding.
  • the downslope stopper and the upslope stopper are respectively arranged on the lower slope by welding.
  • the distance between the down-slope stop and the down-slope diaphragm and the distance between the up-slope stop and the up-slope diaphragm can be determined according to the actual situation to meet the needs of different bridges and different applications. Therefore, it is ensured that the anti-deflection device of the present invention can prevent the pier deflection from exceeding the limit (that is, excessive deflection), and realize the correction of the deviated pier.
  • Figure 1 is a schematic diagram of the application of the anti-offset device of the present invention.
  • Figure 2 is a schematic diagram of the structure of the anti-offset device in Figure 1;
  • the large longitudinal slope high pier bridge includes a pier 1, a cover beam 2, an upslope main beam 8 and a down slope main beam 9.
  • the cover beam 2 is set on the bridge pier 1
  • the upslope main beam 8 is set on the cover beam 2 through the upslope support 13
  • the downslope main beam 9 is set on the cover beam through the downslope support 12
  • an expansion joint is left between the main beam 8 in the upslope direction and the main beam 9 in the downslope direction.
  • an expansion joint device 15 is provided at the expansion joint.
  • the expansion joint device 15 can refer to the prior art.
  • the device for preventing large longitudinal slope and high pier bridge pier deflection of the present invention includes at least one set of anti-deflection devices, which are fixedly arranged on the cover beam 2, and the anti-deflection device is provided with a downward slope Block 10, the downslope main beam 9 is provided with a downslope transverse partition 11, and the downslope stop 10 is located on the side of the downslope transverse partition 11 away from the upslope main beam 8 and passes The cooperation of the downslope stop 10 and the downslope diaphragm 11 realizes the automatic correction of the deviated bridge pier 1, thereby preventing excessive deflection of the bridge pier 1. It should be noted that the bridge pier is deviated within the allowable range. Bit is allowed, but if it exceeds the allowed range, it will affect the bridge.
  • the anti-deflection device includes a downslope limiter 3, the downslope limiter 3 includes a downslope limiter body and a downslope stopper 10 arranged on the downslope limiter body , The downslope stopper 10 is arranged on the cover beam 2 through the downslope stopper body.
  • the anti-deflection device further includes an upslope limiter 4, and the upslope limiter 4 includes an upslope limiter body and an upslope stopper arranged on the upslope limiter body 7.
  • the upslope main beam 8 is provided with an upslope transverse partition 14, the upslope stopper 7 is provided on the cover beam 2 through an upslope stopper body, and the upper
  • the slope stop 7 is located on the side of the upslope diaphragm 14 away from the downslope main girder 9, and the cooperation of the upslope diaphragm 14 and the upslope stop 7 can prevent excessive correction of the bridge pier 1.
  • the expansion joint becomes smaller, the piers are deviated toward the upslope within the allowable range, and the downslope stop is in contact with the downslope diaphragm.
  • the expansion joint becomes larger and the lower
  • the main girder shrinks in the slope direction, and the down-slope diaphragm and the down-slope stopper cooperate to correct the pier (here the bridge pier will be additionally subjected to the downward-slope force exerted by the down-slope diaphragm and the combined force on the pier Towards the downward slope, the bridge piers deviate from the downward slope to achieve correction) to prevent the bridge piers from further deviating toward the upward slope during cold shrinkage, thereby preventing excessive deflection of the bridge piers.
  • Setting up-slope diaphragms and upslope stoppers can prevent over-correction in the process of correcting the bridge piers, that is, when the downward-sloping diaphragms and downward-sloping stops cooperate to correct the pier, if The bridge piers excessively move downhill, and the uphill diaphragm and the uphill stop will contact and limit.
  • the downslope stopper 10 and the upslope stopper 7 are respectively arranged on the downslope stopper body and the upslope stopper body on the cover beam 2 by welding, that is: the upper After the slope limiter body and the downslope limiter body are both installed on the cover beam 2, the downslope stopper 10 and the upslope stopper 7 are respectively set on the downslope limiter by welding On the body and the upslope limiter body.
  • the distance between the down-slope stop and the down-slope diaphragm, and the distance between the up-slope stop and the up-slope diaphragm should be set according to the actual conditions of the bridge application.
  • JTGF80/1-2004 Highway Engineering Quality Inspection and Evaluation Standards
  • JTG/TH21-2011 Highway and Bridge Technical Condition Evaluation Standards
  • the upper slope limiter body and the downslope limiter body are respectively arranged on both sides of the length of the cover beam 2.
  • the length direction of the cover beam is perpendicular to the bridge
  • the cover beam is arranged in the length direction, and the cover beam plays the role of supporting the main beam body.
  • the upper slope limiter body and the downslope limiter body are both L-shaped and symmetrically arranged.
  • the upper slope limiter The body of the piece body cooperates with a set of right-angle edges on the cover beam 2 to realize the upslope limiter body is arranged on the cover beam 2, and the body of the downslope limiter body cooperates with another set of right-angle edges on the cover beam 2 to realize the down
  • the slope limiter body is arranged on the cover beam 2.
  • the anti-deflection device also includes at least one tie rod 6 and fasteners 5 arranged at both ends of the tie rod 6, and both the upslope limiter body and the downslope limiter body are provided with through holes, so The pull rod 6 passes through the through holes on the body of the upslope limiter and the body of the downslope limiter in turn, and cooperates with the fasteners 5 at both ends to realize the clamping of the upslope limiter body and the downslope limiter body Cover beam 2.
  • three through holes are provided on both the downslope limiter body and the upslope limiter body, and the downslope limiter body and the upslope limiter body are connected by three tie rods,
  • the material of the pull rod is preferably 40Cr.
  • the fastener is a nut, two ends of the pull rod are provided with threads, and the nut cooperates with the threads on the pull rod to achieve fastening.
  • the material of the upslope limiter body, the downslope limiter body, the downslope block 10 and the upslope block 7 are all high-strength steel plates.
  • the high-strength steel plate is specifically Q460 steel.
  • the upslope limiter body and the downslope limiter body are respectively arranged on the two sets of right-angled sides of the cover beam, and the tie rods are used to pass through the upper slope limiter body and the downslope limiter body in turn. Through holes, both ends of the tie rods are locked with nuts, so that the upper slope limiter body and the down slope limiter body can clamp the cover beam.
  • the downslope stopper 10 and the upslope stopper 7 are correspondingly installed on the downslope stopper body and the upslope stopper body by welding. In this process, the downslope stopper needs to be controlled. The distance between the block and the downslope diaphragm, and the distance between the upslope block and the upslope diaphragm.
  • the anti-deflection device of the present invention can solve the current situation that the piers of high-pier bridges are inclined upward during the thermal expansion and contraction of the bridge, and prevent the bridge from falling off due to excessive bridge deviation.
  • the invented anti-deflection device can realize automatic correction of bridge piers, eliminates the need for manual correction procedures after bridge piers are deviated, and can save manpower and cost.

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  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

本发明提供了一种预防大纵坡高墩桥桥墩偏位装置，包括至少一组防偏位装置，所述防偏位装置固定设置于盖梁上，所述防偏位装置上设有下坡向挡块，所述下坡向主梁上设有下坡向横隔板，所述下坡向挡块位于下坡向横隔板远离上坡向主梁的一侧，通过下坡向挡块和下坡向横隔板的配合实现将偏位后的桥墩进行自动校正，防止桥墩过度偏位。通过本发明的防偏位装置可以解决目前高墩桥的桥墩在桥梁热胀和冷缩的过程中均往上坡向偏位的情况，防止桥梁偏位超标导致桥梁出现脱落的情况，通过本发明的防偏位装置可以实现对桥墩进行自动校正，省去了桥墩偏位后需要人工校正的流程，可以起到节约人力和成本的目的。

Description

一种预防大纵坡高墩桥桥墩偏位装置 技术领域
本发明涉及桥梁工程技术领域，具体涉及一种预防大纵坡高墩桥桥墩偏位装置。
 背景技术
中等跨径预制装配式简支变连续梁桥在山区高速公路中应用广泛，然而其柔性高墩在施工或运营过程中可能会出现较大偏位，尤其是在上部结构相邻联之间伸缩缝位置处高墩墩顶的偏移现象更为显著。
受大纵坡桥梁本质影响，桥墩的盆式支座在气温影响以及重载汽车的高频共振，便决定了柔性高墩的力学性质，即：柔性高墩在盆式支座限位刚度低的情况下，桥梁主梁不管是受热膨胀还是降温冷缩柔性高墩一定会往上坡方向产生纵向偏位，具体的原因可以参见期刊《郭彤[1], 汪建群[2]. 大纵坡柔性高墩桥桥墩偏位处治及其安全性评估[J]. 中外公路, 2016(2).》。
目前国内绝大多数桥梁设计院均未在桥梁设计时明确设计高墩柔性桥墩纵向限位装置，仅仅只是简要说明桥梁施工完毕需要安装纵向限位装置，但因为没有明确的设计图纸和市场上也没有现成的限位装置供采购，所以一般施工单位在桥梁施工完毕后均未加装纵向限位装置，以致使在运营后的一两年中便出现高墩偏位超限，盖梁与主梁出现上坡方向的纵向偏位超限，造成桥梁支座损害、伸缩缝破坏，高墩底部不利受力增大，弯矩应力剧增，桥墩墩底开裂，桥梁承载能力下降等一系列病害。处理桥墩偏位及加固限位施工成本高，施工难度大，给运营单位和当地经济造成巨大的经济损失和经济效益。
申请号为201510415496 .3的中国专利公开了一种高墩桥梁墩顶位移弹簧限位器，但是其存在以下不足：
（1）对桥梁梁体结构破坏较大：加劲钢板A1与梁体连接固定采用焊钉形式与梁体固结，加劲肋B1也是受力部件，在温差影响下预估有80-200KN水平力，对梁体结构本身就是一种破坏。
（2）结构脱落，限位出现失效：在现有常见实际桥梁结构中，在承受重载、温差环境较大时，梁体应力变化，弯矩变化，主梁作用力下很容易使焊钉松动脱落，久之必然会出现加劲肋B1松动脱落，限位失效。
综上所述，急需一种预防大纵坡高墩桥桥墩偏位装置以解决现有技术中存在的问题。
 技术问题
高墩桥在运营后出现高墩偏位超限，盖梁与主梁出现上坡方向的纵向偏位超限。
 技术解决方案
本发明目的在于提供一种预防大纵坡高墩桥桥墩偏位装置，具体技术方案如下：
一种预防大纵坡高墩桥桥墩偏位装置，大纵坡高墩桥包括桥墩、盖梁、上坡向主梁和下坡向主梁，所述盖梁设置于桥墩上，所述上坡向主梁通过上坡向支座设置于盖梁上，所述下坡向主梁通过下坡向支座设置于盖梁上，上坡向主梁和下坡向主梁之间留有伸缩缝，所述预防大纵坡高墩桥桥墩偏位装置包括至少一组防偏位装置，所述防偏位装置固定设置于盖梁上，所述防偏位装置上设有下坡向挡块，所述下坡向主梁上设有下坡向横隔板，所述下坡向挡块位于下坡向横隔板远离上坡向主梁的一侧，通过下坡向挡块和下坡向横隔板的配合实现将偏位后的桥墩进行自动校正，从而实现防止桥墩过度偏位。
以上技术方案中优选的，所述防偏位装置包括下坡向限位件，所述下坡向限位件包括下坡向限位件本体和设置于下坡向限位件本体上的下坡向挡块，所述下坡向挡块通过下坡向限位件本体设置于所述盖梁上。
以上技术方案中优选的，所述防偏位装置还包括上坡向限位件，所述上坡向限位件包括上坡向限位件本体和设置于上坡向限位件本体上的上坡向挡块，所述上坡向主梁上设有上坡向横隔板，所述上坡向挡块通过上坡向限位件本体设置于所述盖梁上，且所述上坡向挡块位于上坡向横隔板远离下坡向主梁的一侧，通过上坡向横隔板和上坡向挡块的配合实现防止对桥墩校正过度。
以上技术方案中优选的，所述上坡向限位件本体和下坡向限位件本体分别设置于盖梁长度方向的两侧，所述上坡向限位件本体和下坡向限位件本体均为L型结构且对称设置，所述上坡向限位件本体与盖梁上的一组直角边配合实现上坡向限位件本体设置于盖梁上，所述下坡向限位件本体与盖梁上另一组直角边配合实现下坡向限位件本体设置于盖梁上。
以上技术方案中优选的，所述防偏位装置还包括至少一根拉杆以及设置在拉杆两端的紧固件，所述上坡向限位件本体和下坡向限位件本体上均设有通孔，所述拉杆依次贯穿上坡向限位件本体和下坡向限位件本体上的通孔，配合两端的紧固件实现上坡向限位件本体和下坡向限位件本体夹紧盖梁。
以上技术方案中优选的，所述下坡向挡块和上坡向挡块均采用焊接方式对应设置在位于盖梁上的下坡向限位件本体和上坡向限位件本体上。
以上技术方案中优选的，所述上坡向限位件本体、下坡向限位件本体、下坡向挡块和上坡向挡块的材质均为高强度钢板。
 有益效果
应用本发明的技术方案，具有以下有益效果：
（1）本发明的预防大纵坡高墩桥桥墩偏位装置包括至少一组防偏位装置，通过防偏位装置上的下坡向挡块和下坡向主梁上的下坡向横隔板配合实现将偏位后的桥墩进行自动校正，防止桥墩过度偏位，预防因墩顶位移偏位过大时墩底的不利受力的情况。桥梁受热膨胀，伸缩缝变小，桥墩在允许的范围内朝上坡向发生偏位，下坡向挡块与下坡向横隔板相接触，当桥梁冷缩时，伸缩缝变大，下坡向主梁收缩，下坡向横隔板和下坡向挡块配合将桥墩进行校正（此处桥墩会额外受到下坡向横隔板施加的朝下坡向的力），防止发生冷缩时桥墩进一步朝上坡向偏位，进而防止桥墩过度偏位。通过本发明的防偏位装置可以解决目前高墩桥的桥墩在桥梁热胀和冷缩的过程中均往上坡向偏位的情况，防止桥梁偏位超标导致桥梁出现脱落的情况，通过本发明的防偏位装置可以实现对桥墩进行自动校正，省去了桥墩偏位后需要人工校正的流程，可以起到节约人力和成本的目的。
（2）本发明的防偏位装置还包括上坡向限位件，所述上坡向限位件包括上坡向限位件本体和设置于上坡向限位件本体上的上坡向挡块，通过上坡向横隔板和上坡向挡块可以防止在对桥墩进行校正的过程中出现校正过度的情况，即下坡向横隔板和下坡向挡块配合将桥墩进行校正时，如果桥墩过度朝下坡向运动，上坡向横隔板和上坡向挡块将会接触进行限位。同时上坡向挡块和下坡向挡块的配合能够防止桥梁的主梁出现脱落的情况（即防止上坡向主梁和/或下坡向主梁与桥墩之间出现脱落），特别在地震的时候能够预防主梁脱落情况。
（3）本发明的防偏位装置中的所述上坡向限位件本体和下坡向限位件本体均为L型结构，且通过拉杆和紧固件实现上坡向限位件本体和下坡向限位件本体夹紧盖梁，该结构简单可靠、易于安装，方便根据实际需求确定防偏位装置的安装位置，保证本发明的防偏位装置稳定的与盖梁成为一个整体，保证防偏位装置的可靠性。
（4）本发明的防偏位装置中，所述下坡向挡块和上坡向挡块均采用焊接方式对应设置在位于盖梁上的下坡向限位件本体和上坡向限位件本体上，即：上坡向限位件本体和下坡向限位件本体均设置于盖梁上后，所述下坡向挡块和上坡向挡块均采用焊接方式对应设置于下坡向限位件本体和上坡向限位件本体上。这样可以根据实际的情况确定下坡向挡块和下坡向横隔板之间的间距、上坡向挡块和上坡向横隔板之间的间距，满足不同桥梁、不同应用情况的需求，确保本发明的防偏位装置能够实现防止桥墩偏位超限（即过度偏位），以及实现对偏位后的桥墩进行校正。
除了上面所描述的目的、特征和优点之外，本发明还有其它的目的、特征和优点。下面将参照图，对本发明作进一步详细的说明。
 附图说明
构成本申请的一部分的附图用来提供对本发明的进一步理解，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。在附图中：
图1是本发明防偏位装置的应用示意图；
图2是图1中防偏位装置的结构示意图；
其中，1、桥墩，2、盖梁，3、下坡向限位件，4、上坡向限位件，5、紧固件，6、拉杆，7、上坡向挡块，8、上坡向主梁，9、下坡向主梁，10、下坡向挡块，11、下坡向横隔板，12、下坡向支座，13、上坡向支座，14、上坡向横隔板，15、伸缩缝装置。
 本发明的实施方式
以下结合附图对本发明的实施例进行详细说明，但是本发明可以根据权利要求限定和覆盖的多种不同方式实施。
实施例1：
参见图1-2，一种预防大纵坡高墩桥桥墩偏位装置，大纵坡高墩桥包括桥墩1、盖梁2、上坡向主梁8和下坡向主梁9，所述盖梁2设置于桥墩1上，所述上坡向主梁8通过上坡向支座13设置于盖梁2上，所述下坡向主梁9通过下坡向支座12设置于盖梁上，上坡向主梁8和下坡向主梁9之间留有伸缩缝，参见图1，伸缩缝处设有伸缩缝装置15，所述伸缩缝装置15可参考现有技术。
本发明的预防大纵坡高墩桥桥墩偏位装置包括至少一组防偏位装置，所述防偏位装置固定设置于盖梁2上，所述防偏位装置上设有下坡向挡块10，所述下坡向主梁9上设有下坡向横隔板11，所述下坡向挡块10位于下坡向横隔板11远离上坡向主梁8的一侧，通过下坡向挡块10和下坡向横隔板11的配合实现将偏位后的桥墩1进行自动校正，从而实现防止桥墩1过度偏位，需要说明的是，桥墩在允许的范围内发生偏位是允许的，但是如果超过允许范围将会对桥梁造成影响。
所述防偏位装置包括下坡向限位件3，所述下坡向限位件3包括下坡向限位件本体和设置于下坡向限位件本体上的下坡向挡块10，所述下坡向挡块10通过下坡向限位件本体设置于所述盖梁2上。
所述防偏位装置还包括上坡向限位件4，所述上坡向限位件4包括上坡向限位件本体和设置于上坡向限位件本体上的上坡向挡块7，所述上坡向主梁8上设有上坡向横隔板14，所述上坡向挡块7通过上坡向限位件本体设置于所述盖梁2上，且所述上坡向挡块7位于上坡向横隔板14远离下坡向主梁9的一侧，通过上坡向横隔板14和上坡向挡块7的配合实现防止对桥墩1校正过度。
桥梁受热膨胀，伸缩缝变小，桥墩在允许的范围内朝上坡向发生偏位，下坡向挡块与下坡向横隔板相接触，当桥梁冷缩时，伸缩缝变大，下坡向主梁收缩，下坡向横隔板和下坡向挡块配合将桥墩进行校正（此处桥墩会额外受到下坡向横隔板施加的朝下坡向的力，桥墩所受的合力朝向下坡向，桥墩朝下坡向偏位实现校正），防止发生冷缩时桥墩进一步朝上坡向偏位，进而防止桥墩过度偏位。
设置上坡向横隔板和上坡向挡块可以防止在对桥墩进行校正的过程中出现校正过度的情况，即下坡向横隔板和下坡向挡块配合将桥墩进行校正时，如果桥墩过度朝下坡向运动，上坡向横隔板和上坡向挡块将会接触进行限位。
所述下坡向挡块10和上坡向挡块7均采用焊接方式对应设置在位于盖梁2上的下坡向限位件本体和上坡向限位件本体上，即：所述上坡向限位件本体和下坡向限位件本体均设置于盖梁2上后，所述下坡向挡块10和上坡向挡块7均采用焊接方式对应设置于下坡向限位件本体和上坡向限位件本体上。
下坡向挡块和下坡向横隔板之间的间距、上坡向挡块和上坡向横隔板之间的间距应该根据桥梁应用的实际情况进行设置，具体可以参考《公路工程质量检验评定标准》（JTGF80/1-2004)和《公路桥梁技术状况评定标准》(JTG/T H21- 2011)进行设置，或者是参考相关的规定进行设置。
参见图1，所述上坡向限位件本体和下坡向限位件本体分别设置于盖梁2长度方向的两侧，本领域的技术人员可以理解盖梁的长度方向是垂直于桥梁的长度方向设置的，盖梁起到支撑主梁梁体的作用，所述上坡向限位件本体和下坡向限位件本体均为L型结构且对称设置，所述上坡向限位件本体与盖梁2上的一组直角边配合实现上坡向限位件本体设置于盖梁2上，所述下坡向限位件本体与盖梁2上另一组直角边配合实现下坡向限位件本体设置于盖梁2上。
所述防偏位装置还包括至少一根拉杆6以及设置在拉杆6两端的紧固件5，所述上坡向限位件本体和下坡向限位件本体上均设有通孔，所述拉杆6依次贯穿上坡向限位件本体和下坡向限位件本体上的通孔，配合两端的紧固件5实现上坡向限位件本体和下坡向限位件本体夹紧盖梁2。
参见图2，下坡向限位件本体和上坡向限位件本体上均设有三个通孔，所述下坡向限位件本体和上坡向限位件本体通过三根拉杆进行连接，所述拉杆的材质优选为40Cr。
优选的，所述紧固件为螺母，所述拉杆两端设有螺纹，螺母与拉杆上的螺纹配合实现紧固。
所述上坡向限位件本体、下坡向限位件本体、下坡向挡块10和上坡向挡块7的材质均为高强度钢板。所述高强度钢板具体为Q460钢。
应用本实施例的技术方案，具体是：
根据桥梁的实际情况确定设置防偏位装置的数量并确定好在盖梁上的安装位置。
将上坡向限位件本体和下坡向限位件本体分别设置于盖梁的两组直角边上，使用拉杆依次穿过上坡向限位件本体和下坡向限位件本体上的通孔，将拉杆的两端用螺母进行锁紧，实现上坡向限位件本体和下坡向限位件本体夹紧盖梁。
根据实际情况将下坡向挡块10和上坡向挡块7采用焊接方式对应设置于下坡向限位件本体和上坡向限位件本体上，在这个过程中需要控制下坡向挡块和下坡向横隔板之间的间距、上坡向挡块和上坡向横隔板之间的间距。
应用本发明的技术方案，效果是：
通过本发明的防偏位装置可以解决目前高墩桥的桥墩在桥梁热胀和冷缩的过程中均往上坡向偏位的情况，防止桥梁偏位超标导致桥梁出现脱落的情况，通过本发明的防偏位装置可以实现对桥墩进行自动校正，省去了桥墩偏位后需要人工校正的流程，可以起到节约人力和成本的目的。
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (7)

  1. 一种预防大纵坡高墩桥桥墩偏位装置，大纵坡高墩桥包括桥墩（1）、盖梁（2）、上坡向主梁（8）和下坡向主梁（9），所述盖梁（2）设置于桥墩（1）上，所述上坡向主梁（8）通过上坡向支座（13）设置于盖梁（2）上，所述下坡向主梁（9）通过下坡向支座（12）设置于盖梁上，上坡向主梁（8）和下坡向主梁（9）之间留有伸缩缝，其特征在于，包括至少一组防偏位装置，所述防偏位装置固定设置于盖梁（2）上，所述防偏位装置上设有下坡向挡块（10），所述下坡向主梁（9）上设有下坡向横隔板（11），所述下坡向挡块（10）位于下坡向横隔板（11）远离上坡向主梁（8）的一侧，通过下坡向挡块（10）和下坡向横隔板（11）的配合实现将偏位后的桥墩（1）进行自动校正，从而实现防止桥墩（1）过度偏位。
  2. 根据权利要求1所述的预防大纵坡高墩桥桥墩偏位装置，其特征在于，所述防偏位装置包括下坡向限位件（3），所述下坡向限位件（3）包括下坡向限位件本体和设置于下坡向限位件本体上的下坡向挡块（10），所述下坡向挡块（10）通过下坡向限位件本体设置于所述盖梁（2）上。
  3. 根据权利要求2所述的预防大纵坡高墩桥桥墩偏位装置，其特征在于，所述防偏位装置还包括上坡向限位件（4），所述上坡向限位件（4）包括上坡向限位件本体和设置于上坡向限位件本体上的上坡向挡块（7），所述上坡向主梁（8）上设有上坡向横隔板（14），所述上坡向挡块（7）通过上坡向限位件本体设置于所述盖梁（2）上，且所述上坡向挡块（7）位于上坡向横隔板（14）远离下坡向主梁（9）的一侧，通过上坡向横隔板（14）和上坡向挡块（7）的配合实现防止对桥墩（1）校正过度。
  4. 根据权利要求3所述的预防大纵坡高墩桥桥墩偏位装置，其特征在于，所述上坡向限位件本体和下坡向限位件本体分别设置于盖梁（2）长度方向的两侧，所述上坡向限位件本体和下坡向限位件本体均为L型结构且对称设置，所述上坡向限位件本体与盖梁（2）上的一组直角边配合实现上坡向限位件本体设置于盖梁（2）上，所述下坡向限位件本体与盖梁（2）上另一组直角边配合实现下坡向限位件本体设置于盖梁（2）上。
  5. 根据权利要求4所述的预防大纵坡高墩桥桥墩偏位装置，其特征在于，所述防偏位装置还包括至少一根拉杆（6）以及设置在拉杆（6）两端的紧固件（5），所述上坡向限位件本体和下坡向限位件本体上均设有通孔，所述拉杆（6）依次贯穿上坡向限位件本体和下坡向限位件本体上的通孔，配合两端的紧固件（5）实现上坡向限位件本体和下坡向限位件本体夹紧盖梁（2）。
  6. 根据权利要求5所述的预防大纵坡高墩桥桥墩偏位装置，其特征在于，所述下坡向挡块（10）和上坡向挡块（7）均采用焊接方式对应设置在位于盖梁（2）上的下坡向限位件本体和上坡向限位件本体上。
  7. 根据权利要求5所述的预防大纵坡高墩桥桥墩偏位装置，其特征在于，所述上坡向限位件本体、下坡向限位件本体、下坡向挡块（10）和上坡向挡块（7）的材质均为高强度钢板。
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