WO2006131051A1 - Joint de dilatation modulaire à dents pour ponts résistant à une dislocation importante - Google Patents

Joint de dilatation modulaire à dents pour ponts résistant à une dislocation importante Download PDF

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Publication number
WO2006131051A1
WO2006131051A1 PCT/CN2006/001057 CN2006001057W WO2006131051A1 WO 2006131051 A1 WO2006131051 A1 WO 2006131051A1 CN 2006001057 W CN2006001057 W CN 2006001057W WO 2006131051 A1 WO2006131051 A1 WO 2006131051A1
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WO
WIPO (PCT)
Prior art keywords
comb
expansion joint
base
root
joint device
Prior art date
Application number
PCT/CN2006/001057
Other languages
English (en)
French (fr)
Inventor
Bin Xu
Original Assignee
Bin Xu
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bin Xu filed Critical Bin Xu
Priority to US11/916,107 priority Critical patent/US7484259B2/en
Priority to JP2008513896A priority patent/JP4641558B2/ja
Priority to EP06741945.7A priority patent/EP1895055B1/en
Priority to ES06741945T priority patent/ES2436402T3/es
Publication of WO2006131051A1 publication Critical patent/WO2006131051A1/zh

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Classifications

    • 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
    • E01D19/06—Arrangement, construction or bridging of expansion joints

Definitions

  • the invention relates to a joint expansion joint device of a bridge, in particular to a bridge expansion joint device which is resistant to extra large displacement.
  • a comb type telescopic device with a fixed comb plate and a movable comb plate is a better one, especially in a large bridge expansion joint with a telescopic amount of more than 160 mm, as I am
  • the first proposed Chinese patent ZL02264872.0 "Assembled comb bridge expansion device" is the same, because its telescopic movement is completed by the movable comb placed on the expansion joint of the bridge, there is no longitudinal transition gap, and with the bridge deck, The road surface is connected as a whole, so the shockproof performance is good, the vehicle runs smoothly and comfortably, and the jumping phenomenon is effectively avoided, so that the vehicle passes smoothly and comfortably.
  • the beam body will be horizontally and vertically displaced in addition to the load and temperature of the vehicle. Under the influence of other factors such as wind, the beam will also be horizontal.
  • the transverse angle of the direction and the twisting deformation, the traditional modular and comb-type telescopic devices can not meet the needs of this deformation, the modular device will produce the longitudinal beam unchaining, the bearing is broken, and the comb of the comb-type telescopic device Between the rigid contact, under this lateral deformation, the comb teeth are prone to breakage, resulting in damage to the entire expansion joint device.
  • the technical problem to be solved by the present invention is to provide a modular comb bridge expansion joint which can keep the device intact and not broken when the beam body is deformed by an external force such as wind and the like due to the external state of the art. Device.
  • Another technical problem to be solved by the present invention is to provide a modular comb bridge expansion joint device which can resist lateral displacement of the beam body and resist vertical displacement of the beam body.
  • the modular comb-type bridge expansion device that is resistant to extra large displacement includes at least two modules arranged side by side in the width direction of the bridge, wherein each module includes a separate setting a fixed comb plate and a movable comb plate on the beam body on both sides of the bridge expansion joint, wherein the movable comb plate is placed on the bridge expansion joint, and the fixed comb plate and the movable comb plate are respectively provided with comb teeth at opposite ends thereof.
  • the root of the movable comb is rotatably connected to the base fixedly integrated with the beam body, and the comb teeth of the fixed comb are rotatably connected and fixed At the root of the comb plate, at the same time, the middle portion of the comb teeth of the fixed comb plate is disposed on the pad plate fixedly integrated with the beam body so as to be laterally offset relative to the horizontal.
  • the rotatable connection between the root of the movable comb and the base may be as follows: the root of the movable comb has a downwardly convex cylindrical pivot, and the base has a corresponding cylindrical recess, and Adjacent parts are connected by a positioning bolt, and the hole through which the positioning bolt passes is a waist hole, the waist
  • the holes are filled with elastic damping material at the gaps on both sides of the positioning bolt; the elastic support can also be padded at the bottom of the cylindrical recess to reduce the flexing force, absorb and dissipate the impact force and vibration force of the vehicle;
  • the positioning bolt can penetrate the movable comb and the base, and the tail step of the bolt or/and the surface of the nut is spherical, and the base or/and the movable comb have corresponding ball sockets at corresponding positions, so that the whole The device is resistant to certain vertical displacements.
  • the rotatable connection between the root of the movable comb and the base can also be used in the following manner: the root of the movable comb has a downwardly convex cylindrical pivot, and the same portion of the pivot is disposed under the same a convex pin, and the base has a corresponding cylindrical recess for receiving the shaft therein, and a waist-shaped recess in which the pin can be accommodated, the waist-shaped recess is located
  • the gaps on both sides of the pin are filled with an elastic damping material, and further include a central bolt that penetrates the movable comb plate and the base at the pivot portion and rotatably couples the two;
  • the cylindrical recess and the bottom of the waist recess may also be padded with an elastic support to reduce the flexing force, absorb and dissipate the impact force and vibration force of the vehicle; the tail step of the central bolt or/and the surface of the nut is spherical
  • the base or/and the movable comb have corresponding
  • the relatively rotatable connection between the root of the fixed comb and the comb teeth can be achieved simply by a locating pin extending through both, and other prior art can be employed.
  • the relatively horizontally laterally offset connection between the comb teeth of the fixed comb and the backing plate can be achieved simply by the positioning bolts extending through the two, and the hole through which the positioning bolt passes is formed on the backing plate.
  • the hole, the waist hole is filled with an elastic damping material at the gap on both sides of the positioning bolt; of course, other prior art can also be employed.
  • an insurance may be connected between the root of the movable comb and the base.
  • a spring or a safety bolt the safety bolt penetrates the base and the movable comb from bottom to top, and the corresponding hole of the movable comb is a stepped hole, wherein a compression spring is disposed, and the safety bolt is disposed on the upper part of the step Outside, and the upper limit of the nut.
  • the structure disclosed in the prior invention patent application CN200410049491.5 "A large anti-flexible comb type bridge expansion joint device” can be used.
  • the following structure can be selected: the root of the movable comb is also comb-shaped, and the bottom surface is fixed with a rotating shaft.
  • a shaft seat composed of a press seat and a bracket is also provided, and the press seat and the support are provided.
  • the seat is integrally fixed by bolts, wherein the bottom surface of the pressure seat has a semi-cylindrical groove, and the top surface of the bracket also has a semi-cylindrical groove, the two grooves together constitute a shaft seat for accommodating the rotating shaft therein, and the bracket has a convex cylindrical shaft pivot, and a corresponding cylindrical recess on the base, and the bracket and the base are integrally connected by a positioning bolt at an adjacent portion, and the hole through which the positioning bolt passes is A waist hole, the waist hole is filled with an elastic damping material at a space on both sides of the positioning bolt.
  • the movable comb and the comb teeth of the present invention are deflected correspondingly, and the comb teeth on the fixed comb plate are also made.
  • the shearing force is effectively reduced, the dissipative impact force and the vibration force are absorbed, thereby reducing the fatigue damage of the telescopic device and avoiding the occurrence of comb fracture, and the spherical structure of the bolt, the elastic support, the safety tension spring, the safety bolt and the
  • the unique vertical rotation design can further adapt to the vertical displacement of the beam body, so that the entire bridge expansion device can adapt to the multi-directional angular displacement of the beam body without rigid damage, further improving the ability of the device to resist fatigue damage and prolonging The life of the telescopic unit; the modular design not only facilitates construction and maintenance, but also reduces manufacturing and maintenance costs.
  • FIG. 1 is a schematic structural view of Embodiment 1 of the present invention.
  • Figure 2 is a cross-sectional view taken along line A-A of Figure 1.
  • Fig. 3 is an enlarged cross-sectional view taken along line B-B of Fig. 1.
  • Figure 4 is a partial enlarged view of Figure 2.
  • Figure 5 is a cross-sectional view taken along line C-C of Figure 4 .
  • Figure 6 is a partial enlarged view of another portion of Figure 2.
  • Figure 7 is a cross-sectional view taken along line D-D of Figure 6.
  • Figure 8 is a cross-sectional view taken along line E-E of Figure 6.
  • FIG. 9 is a schematic structural view of a first embodiment of the present invention when a lateral corner displacement occurs.
  • FIG. 10 is a schematic structural diagram of Embodiment 2 of the present invention.
  • Figure 11 is a cross-sectional view taken along line F-F of Figure 10 .
  • Figure 12 is an enlarged cross-sectional view taken along line G-G of Figure 10 .
  • Figure 13 is a partial enlarged view of Figure 11 .
  • Figure 14 is a cross-sectional view taken along line H-H of Figure 13;
  • Figure 15 is a schematic structural view of a third embodiment of the present invention.
  • Figure 16 is a cross-sectional view taken along line I-I of Figure 15.
  • Figure 17 is a partial enlarged view of Figure 16.
  • Figure 18 is an enlarged cross-sectional view taken along line J-J of Figure 15;
  • Figure 19 is a cross-sectional view taken along line K-K of Figure 18.
  • Figure 20 is a cross-sectional view taken along line L-L of Figure 18. detailed description
  • an embodiment of the present invention applied to a steel box girder includes a plurality of modules arranged side by side in the width direction of the bridge, wherein each module includes beams respectively disposed on both sides of the bridge expansion joint.
  • the root of the movable comb 1 is connected to the base 5 which is fixedly integrated with the beam body in a relatively rotatable manner: the root of the movable comb 1 has a downwardly convex cylindrical pivot 12, and the base 5 has a corresponding one.
  • the cylindrical recess 51 has an elastic support 52 at the bottom, and is integrally connected by positioning bolts 4 on both sides (the number of the positioning bolts 4 can be determined according to specific conditions, and one positioning bolt 4 is also Moreover, the hole 51 through which the positioning bolt 4 passes through the base 5 is a waist hole, and the waist hole 51 is filled with the elastic damping material 53 at the gap on both sides of the positioning bolt 4, see FIG. 4 and FIG.
  • a safety bolt 3 is further connected between the root of the movable comb 1 and the base 6, and the safety bolt 3 penetrates the base 5 and the movable comb 1 from bottom to top, and the movable comb
  • the corresponding hole of 1 is a stepped hole, wherein a compression spring 31 is disposed, which is disposed outside the portion of the safety bolt 3 above the step, and is placed at the upper limit of the nut, see FIG. 4;
  • the positioning step of the positioning bolt 4 and the nut surface are spherical, and the base 5 and the movable comb 1 have corresponding ball sockets at corresponding positions, see FIG. 4;
  • the fixed comb plate 2 is placed on the backing plate 6 of the beam body, and the root portion of the fixing comb plate 2 and the respective comb teeth 22 are connected to each other by a positioning pin 23 extending through the two, so as to see a figure. 2, FIG. 6; and the middle portion of the comb tooth 22 is connected to the horizontally and horizontally offset by the positioning bolt 21 extending through the comb 22 and the backing plate 6, and the positioning bolt 21 is received on the backing plate 6.
  • the through holes 61 are waist-shaped holes which are filled with elastic damping material 62 at the gaps on both sides of the positioning bolt 21, see Figs. 6, 7, and 8.
  • FIG. 10 to FIG. 14 it is a second embodiment of the present invention, which differs from the first embodiment in a relatively rotatable connection between the root of the movable comb 1 and the base 5 .
  • the activity is
  • the root of the combing plate 1 has a downwardly convex cylindrical pivot 12, and a similarly projecting stud 13 is disposed adjacent to the pivot 12, and the base 5 has corresponding shafts
  • the pivot 12 receives a cylindrical recess 52 therein and a waist recess 54 in which the stud 13 can be received.
  • the bottom of the cylindrical recess 52 and the waist recess 54 are respectively padded with an elastic support 52, 55, wherein the waist-shaped recess 54 is further filled with an elastic damping material 56 at a space on both sides of the stud 13 and further includes a central bolt 7 at the pivot portion 12 Passing through the movable comb 1 and the base 5 and rotatably connecting the two;
  • the tail step or/and the nut surface of the central bolt 7 are spherical, and the base 5 and the movable comb 1 have corresponding ball sockets at corresponding positions, see FIG. 12 and FIG. 13;
  • FIG. 15 to FIG. 20 it is a third embodiment of the present invention, and the difference from the first embodiment and the second embodiment is also a relatively rotatable connection between the root of the movable comb 1 and the base 5.
  • the difference from the first embodiment and the second embodiment is also a relatively rotatable connection between the root of the movable comb 1 and the base 5.
  • the anti-vertical displacement structure disclosed in the invention patent application CN200410049491.5 "A large anti-flexible comb type bridge expansion joint device”
  • its ability to resist vertical displacement is further strengthened, and its specificity
  • the structure is as follows: the root of the movable comb 1 is comb-shaped, and the bottom surface is fixed with a rotating shaft 14 .
  • a shaft seat composed of the pressing seat 82 and the bracket 83 is further provided.
  • the bracket 82 and the bracket 83 are integrally fixed by bolts 81.
  • the bottom surface of the pressure seat 82 has a semi-cylindrical groove
  • the top surface of the bracket 83 also has a semi-cylindrical groove
  • the two grooves together constitute a shaft seat for accommodating the rotating shaft 14 therein.
  • the bracket 83 has a downwardly convex cylindrical pivot 83a
  • the base 5 has a corresponding cylindrical recess 51.
  • the bottom is padded with an elastic support 52, and the positioning bolts are passed on both sides.
  • the bracket 83 and the base 5 are integrally connected, and the hole 53 through which the positioning bolt 9 passes through the base 5 is a waist hole, and the waist hole 53 is filled with elastic damping material at the gap between the two sides of the positioning bolt 9. 91.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Bridges Or Land Bridges (AREA)
  • Road Paving Structures (AREA)

Description

一种抗特大变位的模块式梳型梁伸缩缝装置 技术领域
本发明涉及一种桥梁的伸缩缝装置， 特别是一种抗特大变位的桥梁伸缩缝装置。 背景技术
在现有的桥梁伸缩缝装置中， 采用固定梳板和活动梳板配合的梳型伸缩装置是较 好的一种， 尤其是应用伸缩量在 160毫米以上的大型桥梁伸缩缝中， 如本人在先提出的 中国专利 ZL02264872.0号的 《装配式梳型桥梁伸缩装置》就是如此， 由于其伸缩运动 由置于桥梁伸缩缝之上的活动梳板完成， 无纵向过渡间隙， 而且与桥面、 路面连接成 一个整体， 因此防震性能好， 车辆行驶平稳、 舒适， 有效地避免了跳车现象， 使车辆 平顺、 舒适地驶过。
但是在斜拉桥、 悬索桥、 弧形梁桥等桥梁中， 梁体除了在车辆荷载及气温作用下 会发生纵向、 竖向变位外， 在风力等其他因素作用下， 梁体还会发生水平方向的横向 转角及扭动变形， 传统的模数式及梳型伸缩装置均不能满足这种变形需要， 模数式装 置会产生纵横梁脱链、 支座断裂， 而梳型伸缩装置的梳齿之间为刚性接触， 在这种横 向变形作用下， 梳齿容易发生断折， 从而造成整个伸缩缝装置的损坏。 发明内容
本发明所要解决的技术问题是针对上述现有技术现状而提供一种在梁体因风动等 外力作用下发生特大横向转角变位时仍能保持装置完整不断裂的模块式梳型桥梁伸缩 缝装置。
本发明所要解决的另一个技术问题是提供一种既能抗梁体横向变位又能抗梁体竖 向变位的模块式梳型桥梁伸缩缝装置。
本发明解决上述技术问题所釆用的技术方案为： 该抗特大变位的模块式梳型桥梁 伸缩装置， 包括有至少二个按桥梁的宽度方向并排排列的模块， 其中每个模块包括分 别设置在桥梁伸缩缝两侧梁体上的固定梳板和活动梳板， 其中活动梳板跨置于桥梁伸 缩缝之上， 固定梳板和活动梳板在各自相对的端部各设置有梳齿并相互交叉间隔设 置， 其特征在于所述活动梳板的根部以可相对转动的方式连接在与梁体固定一体的底 座上， 而所述固定梳板的梳齿则以可转动的方式连接在固定梳板的根部上， 同时， 固 定梳板的梳齿中部再以可相对水平横向偏移的方式设置在与梁体固定一体的垫板上。
所述的活动梳板根部与底座之间的可相对转动连接可以采用以下方式： 活动梳板 的根部具有下凸的圆柱状轴枢， 而底座上则具有相对应的圆柱状凹窝， 并在相邻部位 通过定位螺栓将两者连接一体， 而且， 底座上容该定位螺栓穿过的孔为腰形孔， 该腰 形孔在定位螺栓两侧的空隙处充填有弹性阻尼材料； 在所述的圆柱状凹窝底部还可衬 垫有弹性支座， 以消减挠变力、 吸收消散车辆冲击力和振动力； 所述的定位螺栓可贯 穿所述的活动梳板和底座， 并且螺栓的尾部台阶或 /和螺母表面呈球面状， 而底座或 /和 活动梳板则在对应处具有对应的球窝， 以使整个装置能抵抗一定的竖向变位。
所述的活动梳板根部与底座之间的可相对转动连接还可以釆用以下方式： 活动梳 板的根部具有下凸的圆柱状轴枢， 并在该轴枢的相邻部位设置有同样下凸的柱销， 而 底座上则具有相对应的可将所述的轴枢容纳其中的圆柱状凹窝以及可将所述的柱销容 纳其中的腰形凹窝， 该腰形凹窝在位于所述柱销两侧的空隙处充填有弹性阻尼材料， 并且， 还包括有一中央螺栓， 该中央螺栓在所述的轴枢部位贯穿活动梳板和底座并将 两者可转动地连接一体； 所述的圆柱状凹窝及腰形凹窝底部还可衬垫有弹性支座， 以 消减挠变力、 吸收消散车辆冲击力和振动力； 所述中央螺栓的尾部台阶或 /和螺母表面 呈球面状， 而底座或 /和活动梳板则在对应处具有对应的球窝， 以使整个装置能抵抗一 定的竖向变位。
所述固定梳板的根部与梳齿之间的可相对转动的连接可以简单地通过一贯穿两者 的定位销轴来实现， 也可采用其他现有技术。
所述固定梳板的梳齿与垫板之间的可相对水平横向偏移的连接可以简单地通过贯 穿两者的定位螺栓来实现， 并且垫板上容该定位螺栓穿过的孔为腰形孔， 该腰形孔在 定位螺栓两侧的空隙处充填有弹性阻尼材料； 当然也可采用其他现有技术。
为了防止在较大的形变力作用下活动梳板竖向变位过度而脱离与底座之间的可转 动连接， 还可在所述活动梳板的根部与所述的底座之间还连接有一保险拉簧或者一保 险螺栓， 该保险螺栓自下而上贯穿底座和活动梳板， 并且活动梳板的对应孔为一台阶 孔， 其中设置有一压缩弹簧， 套设在保险螺栓位于台阶之上的部位外， 并被螺母上限 位。
事实上， 对于抵抗梁体的竖向变位， 还可采用本人的 CN200410049491.5号在先发 明专利申请《一种特大抗挠变梳型桥梁伸缩缝装置》 中所公开的结构， 具体地， 可以 选用以下结构： 活动梳板根部也呈梳状， 并且底面固接有一转轴 ·， 在活动梳板根部的 梳状间隔内还设置有由压座和托座构成的轴座， 压座和托座通过螺栓固定一体， 其中 压座底面具有半圆柱状凹槽， 托座顶面也具有半圆柱状凹槽， 两个凹槽共同构成可将 转轴容纳其中的轴座， 并且， 所述的托座具有下凸的圆柱状轴枢， 而底座上则具有相 对应的圆柱状凹窝， 并在相邻部位通过定位螺栓将托座和底座连接一体， 而且， 底座 上容该定位螺栓穿过的孔为腰形孔， 该腰形孔在定位螺栓两侧的空隙处充填有弹性阻 尼材料。
与现有技术相比， 在梁体因受风等外力作用下发生横向转角变位时， 本发明的活 动梳板及其梳齿会作相应的偏转， 固定梳板上的梳齿也会作相应的偏移， 并在弹性阻 尼材料作用下有效地消减挠变力， 吸收消散冲击力和振动力， 从而减缓伸缩装置的疲 劳破坏， 避免梳齿断裂的发生， 同时螺栓球面结构、 弹性支座、 保险拉簧、 保险螺栓 以及特有的竖向转动设计， 能进一步适应梁体的竖向变位， 从而使整个桥梁伸縮装置 能适应梁体的多向转角变位而不发生刚性损坏， 进一步提高装置抵御疲劳破坏的能 力， 延长伸缩装置使用寿命； 而模块化设计不但方便施工和维修， 也降低了制造与维 护的费用。 附图说明
图 1为本发明实施例一的结构示意图。
图 2为图 1的 A-A剖视图。
图 3为图 1的 B-B剖视放大图。
图 4为图 2的局部放大图。
图 5为图 4的 C-C剖视图。
图 6为图 2的另一部位局部放大图。
图 7为图 6的 D-D剖视图。
图 8为图 6的 E-E剖视图。
图 9为本发明实施例一在发生横向转角变位时的结构示意图。
图 10为本发明实施例二的结构示意图。
图 11为图 10的 F-F剖视图。
图 12为图 10的 G-G剖视放大图。
图 13为图 11的局部放大图。
图 14为图 13的 H-H剖视图。
图 15为本发明实施例三的结构示意图。
图 16为图 15的 I-I剖视图。
图 17为图 16的局部放大图。
图 18为图 15的 J-J剖视放大图。
图 19为图 18的 K-K剖视图。
图 20为图 18的 L-L剖视图。 具体实施方式
以下结合附图实施例对本发明作进一步详细描述。
如图 1〜图 9所示， 为本发明应用于钢箱梁的一个实施例， 它包括多个按桥梁的宽 度方向并排排列的模块， 其中每个模块包括分别设置在桥梁伸缩缝两侧梁体上的固定 梳板 2和活动梳板 1， 其中活动梳板 1跨置于桥梁伸缩缝之上， 固定梳 2板和活动梳板 1在 各自相对的端部各设置有梳齿 21、 11并相互交叉间隔设置， 参见图 1、 图 2;
所述活动梳板 1的根部以可相对转动的方式连接在与梁体固定一体的底座 5上： 活 动梳板 1的根部具有下凸的圆柱状轴枢 12， 而底座 5上则具有相对应的圆柱状凹窝 51并 在底部衬塾有弹性支座 52， 并在两侧部位分别通过定位螺栓 4将两者连接一体 (定位螺 栓 4的数量可视具体情形而定， 一个定位螺栓 4也能起作用)， 而且， 底座 5上容该定位 螺栓 4穿过的孔 51为腰形孔， 该腰形孔 51在定位螺栓 4两侧的空隙处充填有弹性阻尼材 料 53， 参见图 3、 图 4、 图 5; 所述活动梳板 1的根部与所述的底座 6之间还连接有一保险 螺栓 3 , 该保险螺栓 3自下而上贯穿底座 5和活动梳板 1， 并且活动梳板 1的对应孔为一台 阶孔， 其中设置有一压缩弹簧 31， 套设在保险螺栓 3位于台阶之上的部位外， 并被螺母 上限位， 参见图 4;
为能抵抗一定的竖向变位， 所述的定位螺栓 4尾部台阶和螺母表面均呈球面状， 而 底座 5和活动梳板 1则在对应处具有对应的球窝， 参见图 4;
所述的固定梳板 2置于梁体固定一体的垫板 6之， 固定梳板 2的根部与各个梳齿 22之 间通过贯穿两者的定位销轴 23而实现可相对转动连接， 参见图 2、 图 6; 而所述梳齿 22 的中部则通过贯穿梳齿 22及垫板 6的定位螺栓 21而实现可相对水平横向偏移的连接， 并 且， 垫板 6上容该定位螺栓 21穿过的孔 61为腰形孔， 该腰形孔 61在定位螺栓 21两侧的空 隙处充填有弹性阻尼材料 62， 参见图 6、 图 7、 图 8。
当桥梁因外力而发生横向转角变位时， 各模块的活动梳板即顺应地绕齿根发生一 定角度的偏转， 并带动固定梳板的梳齿发生一定的横向偏移， 从而避免梳齿的断裂， 参见图 9。
如图 10〜14所示， 为本发明的实施例二， 与实施例一不同之处在于活动梳板 1的***与底座 5之间的可相对转动的连接方式， 在本实施例中， 活动梳板 1的根部具有下凸 的圆柱状轴枢 12， 并在该轴枢 12的相邻部位设置有同样下凸的柱销 13， 而底座 5上则具 有相对应的可将所述的轴枢 12容纳其中的圆柱状凹窝 52以及可将所述的柱销 13容纳其 中的腰形凹窝 54， 圆柱状凹窝 52和腰形凹窝 54的底部分别衬垫有弹性支座 52、 55， 而 其中腰形凹窝 54在位于所述柱销 13两侧的空隙处还充填有弹性阻尼材料 56， 并且， 还 包括有一中央螺栓 7， 该中央螺栓 7在所述的轴枢 12部位贯穿活动梳板 1和底座 5并将两 者可转动地连接一体；
为能抵抗一定的竖向变位， 所述中央螺栓 7的尾部台阶或 /和螺母表面呈球面状， 而底座 5和活动梳板 1则在对应处具有对应的球窝， 参见图 12、 图 13;
另外一个与实施例一的区别是， 在本实施例中， 所述活动梳板 1的根部与所述的底 座 6之间的保险连接用保险拉簧 32替代了保险螺栓 3， 参见图 13。
如图 15〜图 20所示， 为本发明的实施例三， 与实施例一和实施例二的不同之处也 在于活动梳板 1的根部与底座 5之间的可相对转动的连接方式， 在本实施例中， 实际上 结合了本人在 CN200410049491.5号发明专利申请《一种特大抗挠变梳型桥梁伸缩缝装 置》 中所公开的抗竖向变位的结构， 其抗竖向变位的能力进一步加强， 其具体结构 为： 活动梳板 1的根部呈梳状， 并且底面固接有一转轴 14， 在活动梳板 1根部的梳状间 隔内还设置有由压座 82和托座 83构成的轴座， 压座 82和托座 83通过螺栓 81固定一体， 其中压座 82底面具有半圆柱状凹槽， 托座 83顶面也具有半圆柱状凹槽， 两个凹槽共同 构成可将转轴 14容纳其中的轴座， 并且， 所述的托座 83具有下凸的圆柱状轴枢 83a， 而 底座 5上则具有相对应的圆柱状凹窝 51在底部衬垫有弹性支座 52， 并在两侧部位通过定 位螺栓 9将托座 83和底座 5连接一体， 而且， 底座 5上容该定位螺栓 9穿过的孔 53为腰形 孔， 该腰形孔 53在定位螺栓 9两侧的空隙处充填有弹性阻尼材料 91。

Claims

权 利 要 求 书
1、 一种抗特大变位的模块式梳型梁伸缩缝装置， 包括有至少二个按桥梁的宽度方 向并排排列的模块， 其中每个模块包括分别设置在桥梁伸缩缝两侧梁体上的固定梳板 (2)和活动梳板 (1)， 其中活动梳板 (1)跨置于桥梁伸缩缝之上，固定梳板 (2)和活动梳板 (1) 在各自相对的端部各设置有梳齿 (21)、 （22)并相互交叉间隔设置， 其特征在于所述活动 梳板 (1)的根部以可相对转动的方式连接在与梁体固定一体的底座 (5)上， 而所述固定梳 板的梳齿 (22)则以可转动的方式连接在固定梳板 (2)的根部上,同时,固定梳板的梳齿 (22) 中部再以可相对水平横向偏移的方式设置在与梁体固定一体的垫板 (6)上。
2、 根据权利要求 1所述的抗特大变位的模块式梳型梁伸缩缝装置， 其特征在于所 述的活动梳板 (1)根部与底座 (5)之间的可相对转动连接釆用以下方式： 活动梳板 (1)的***具有下凸的圆柱状轴枢 (12)， 而底座 (5)上则具有相对应的圆柱状凹窝 (51)， 并在相邻 部位通过定位螺栓 (4)将两者连接一体， 而且， 底座 (5)上容该定位螺栓 (4)穿过的孔 (53) 为腰形孔， 该腰形孔 (53)在定位螺栓 (4)两侧的空隙处充填有弹性阻尼材料 (41)。
3、 根据权利要求 2所述的抗特大变位的模块式梳型梁伸缩缝装置， 其特征在于所 述的圆柱状凹窝底部 (51)衬垫有弹性支座 (：52)。
4、 根据权利要求 2所述的抗特大变位的模块式梳型梁伸缩缝装置， 其特征在于所 述的定位螺栓 (4)贯穿所述的活动梳板 (1)和底座 (5)， 并且螺栓 (4)的尾部台阶或 /和螺母 表面呈球面状， 而底座 (5)或 /和活动梳板 (1)则在对应处具有对应的球窝。
5、 根据权利要求 1所述的抗特大变位的模块式梳型梁伸缩缝装置， 其特征在于所 述的活动梳板 (1)根部与底座 (5)之间的可相对转动连接采用以下方式： 活动梳板 (1)的***具有下凸的圆柱状轴枢 (12)，并在该轴枢 (12)的相邻部位设置有同样下凸的柱销 (13)， 而底座 (5)上则具有相对应的可将所述的轴枢 (12)容纳其中的圆柱状凹窝 (51)以及可将所 述的柱销 (13)容纳其中的腰形凹窝 (54)， 该腰形凹窝 (54)在位于所述柱销 (13)两侧的空隙 处充填有弹性阻尼材料 (56)， 并且， 还包括有一中央螺栓 (7)， 该中央螺栓 (7)在所述的 轴枢 (12)部位贯穿活动梳板 (1)和底座 (5)并将两者可转动地连接一体。
6、 根据权利要求 5所述的抗特大变位的模块式梳型梁伸缩缝装置， 其特征在于所 述的圆柱状凹窝51)及腰形凹窝 (54)底部衬垫有弹性支座。
7、 根据权利要求 6所述的抗特大变位的模块式梳型梁伸缩缝装置， 其特征在于所 述中央螺栓 (7)的尾部台阶或 /和螺母表面呈球面状， 而底座 (5)或 /和活动梳板 (1)则在对 应处具有对应的球窝。
8、 根据权利要求 1所述的抗特大变位的模块式梳型梁伸缩缝装置， 其特征在于活 动梳板 (1)根部呈梳状， 并且底面固接有一转轴 (14)， 在活动梳板 (1)根部的梳状间隔内 还设置有由压座 (82)和托座 (83)构成的轴座， 压座 (82)和托座 (83)通过螺栓 (81)固定一 体， 其中压座 (82)底面具有半圆柱状凹槽， 托座 (83)顶面也具有半圆柱状凹槽， 两个凹 槽共同构成可将转轴 (14)容纳其中的轴座， 并且， 所述的托座 (83)具有下凸的圆柱状轴 枢 (83a), 而底座 (5)上则具有相对应的圆柱状凹窝 (51)， 并在相邻部位通过定位螺栓 (9) 将托座 (83)和底座 (5)连接一体， 而且， 底座 (5)上容该定位螺栓 (9)穿过的孔 (53)为腰形 孔， 该腰形孔 (53)在定位螺栓 (9)两侧的空隙处充填有弹性阻尼材料 (91)。
9、 根据权利要求 1至 8中任一所述的抗特大变位的模块式梳型梁伸缩缝装置， 其特 征在于所述固定梳板 (2)的根部与梳齿 (22)之间的可相对转动的连接通过一贯穿两者的 定位销轴 (23)来实现。
10、 .根据权利要求 1至 8所述的抗特大变位的模块式梳型梁伸缩缝装置， 其特征在 于所述固定梳板的梳齿 (22)与垫板 (6)之间的可相对水平横向偏移的连接通过贯穿两者 的定位螺栓 (21)来实现， 并且垫板 (6)上容该定位螺栓 (21)穿过的孔 (61)为腰形孔， 该腰 形孔 (61)在定位螺栓 (21)两侧的空隙处充填有弹性阻尼材料 (62)。
11、 根据权利要求 1至 8所述的抗特大变位的模块式梳型梁伸缩缝装置， 其特征在 于在所述活动梳板 (1)的根部与所述的底座 (5)之间还连接有一保险拉簧 (32)。
12、 根据权利要求 1至 8所述的抗特大变位的模块式梳型梁伸缩缝装置， 其特征在 于在所述活动梳板 (1)的根部与所述的底座 (5)之间还连接有一保险螺栓 (3)， 该保险螺栓 (3)自下而上贯穿底座 (5)和活动梳板 (1)， 并且活动梳板 (1)的对应孔为一台阶孔， 其中设 置有一压缩弹簧 (31)， 套设在保险螺栓 (3)位于台阶之上的部位外， 并被螺母上限位。
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US20080196183A1 (en) 2008-08-21
US7484259B2 (en) 2009-02-03
EP1895055A4 (en) 2009-10-28
EP1895055B1 (en) 2013-08-21
CN100406650C (zh) 2008-07-30
ES2436402T3 (es) 2013-12-30
JP4641558B2 (ja) 2011-03-02

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