gyz300圆型四氟板式橡胶支座 131 6657 0832
四氟滑板式桥梁支座，本产品是于普通板式橡胶支座上粘接一层厚2-3mm的聚四氟乙烯板而成。除具有普通板式橡胶支座的竖向刚度与弹性变形，能承受垂直荷载及适应梁端转动外，因四氟乙烯与梁底不锈钢板间的低摩擦系数(μ≤0.03)可使桥梁上部构造的水平位移不受限制，跨度>30米的大跨度桥梁、简支梁连续板桥和多跨连续梁桥可作活动支座使用;连续梁顶推、T型梁横移和大型设备滑移可作滑块使用。
PTFE slide bridge bearing, this product is on the ordinary plate rubber bearing adhesive layer of thick 2-3mm PTFE plate. In addition to the vertical with normal rubber bearing stiffness and elastic deformation under vertical load and can adapt to the rotation of the outer end of the beam, because of low coefficient of friction between the steel plate and beam bottom tetrafluoroethylene (U = 0.03) the horizontal displacement of the upper structure of the bridge is not restricted, span >30 meters long span bridge, continuous beam bridge and multi span continuous beam bridge can be used as a movable support; continuous beam pushing and shifting of T beam and large equipment can use the slider slip.
材料分类
Material classification
a:氯丁橡胶: 适用温度+60℃∽-25℃
A: neoprene: suitable for temperature +60 to -25 degrees
b:天然橡胶: 适用温度+60℃∽-40℃
B: natural rubber: suitable temperature +60 to -40 degrees
使用方法
Usage method
1)选用
1) selection
a:查看板式橡胶支座的安装施工图纸，主要注意板式橡胶支座的规格型号、厚度、设计承载力等主要技术参数。四氟滑板橡胶支座还要注意预埋钢板的尺寸和安装位置及方向;
A: view the installation and construction drawings of plate rubber bearings, mainly pay attention to the specifications, types, thickness, design capacity and other main technical parameters of plate rubber bearings. The size, installation position and direction of the embedded steel plate should also be noted in the PTFE rubber bearing;
b:选用板式橡胶支座时,支座的最大承载力应与桥梁支点反力相吻合,其容许偏差范围宜为±10%;
When the b: plate rubber bearing is used, the maximum bearing capacity of the bearing should be consistent with the reaction force of the bridge fulcrum, and the allowable deviation range should be + 10%;
gyz300圆型四氟板式橡胶支座 131 6657 0832
c: 对于弯、坡、斜、宽桥梁，宜选用圆形板式橡胶支座。公路桥梁工程不宜使用带球冠或坡形的橡胶支座;
C: for circular, sloping, inclined and wide bridges, circular plate rubber bearings should be selected. The highway bridge engineering is the use of rubber bearings with spherical or slope shape;
d:当桥梁纵坡坡度不大于1%时，板式橡胶支座可直接设置于墩台上，但应考虑纵坡影响所需要的厚度。当纵坡坡度大于1%时，应采用预埋钢板(加楔形钢板)、混凝土垫块(带坡度的垫石)或其他措施将梁底调平，保证支座平置。板式橡胶支座应按JTG D62的有关规定验算并在验算满足规定要求后方可使用。
D: when the bridge longitudinal slope is not greater than 1%, the laminated rubber bearing can be directly arranged on the pier, but should consider the influence of the required thickness of longitudinal slope. When the longitudinal slope is greater than 1%, the embedded steel plate (wedge steel plate), concrete cushion block (with slope cushion stone) or other measures should be used to adjust the bottom of the beam to ensure the flat support. The plate type rubber bearing should be checked according to the relevant provisions of JTG D62 and can be used before the checking calculation meets the specified requirements.
e:GJZF4、GYZF4型四氟滑板橡胶支座应水平安装。并应设置上下钢板，四氟滑板与不锈钢板间应该涂放5201-2硅脂润滑油，安装后一定要设置防尘罩;支座的四氟滑板不得设置在支座底面，与四氟滑板接触的不锈钢板也不能直接设置在桥梁墩、台垫石上。
Horizontal mounting of e:GJZF4 and GYZF4 type PTFE slide rubber bearings. And should be set on the steel plate, stainless steel plate and PTFE slide should apply 5201-2 grease lubricating oil, after installation must be set dustproof; PTFE sliding bearings should be set up in the bottom surface of the supporting seat, stainless steel plate in contact with PTFE skateboarding also cannot be provided directly to the bridge pier and abutment pad stone.
2)安装
2) installation
a:安装准备
A: Installation Preparation
a.1 板式橡胶支座安装处宜设置支承垫石,支承垫石平面尺寸大小应按局部承压计算确定,垫石长度、宽度应比支座相应的尺寸至少增加50mm左右，其高度应为100mm以上，且应考虑便于支座的更换。
A.1 rubber bearing installation should set the bearing pad stone, bearing pad stone plane size should be according to the local pressure calculation, cushion stone length and width should be higher than the corresponding support size increase of at least about 50mm, its height should be more than 100mm, and should be considered for the replacement of bearings.
a.2 支座垫石内应布置钢筋网，钢筋直径为8mm时，间距宜为50mm×50mm，桥梁墩、台内应有竖向钢筋延伸至支座垫石内，支座垫石的混凝土强度等级不应低于C50。
A.2 bearing pad stone internal layout of steel mesh, bar diameter is 8mm, the suitable spacing is 50mm * 50mm, bridge pier and abutment should have vertical bars extending to the bearing pad stone, concrete strength bearing pad stone should not be less than C50.
a.3 支座垫石表面应平整、清洁、干爽、无浮沙。支座垫石顶面标高要求准确无误。在平坡情况下，同一片梁两端支承垫石及同一桥墩、台上支承垫石应处于同一设计标高平面内，其相对高差不应超过±1.5 mm，同一支承垫石高差应小于0.5 mm。
gyz300圆型四氟板式橡胶支座 131 6657 0832
A.3 bearing pad stone surface should be smooth, clean, dry, no sand. The elevation of the top of the cushion stone should be accurate. In the case of flat slope, with a beam at both ends of bearing pad stone piers, and the same table bearing pad stone should be in the same plane design elevation, the relative height should not exceed 1.5 mm, with a height of bearing pad stone should be less than 0.5 mm.
b: 支座安装
Installation of b: bearing
b.1 支座进场后，应检查支座上是否有制造商的商标或永久性标记。安装时，应按照设计图纸要求，在支承垫石和支座上均标出支座位置中心线，以保证支座准确就位。
When the B.1 bearing comes into play, the manufacturer's trademark or permanent mark shall be checked on the support. When installing, the center line of bearing position should be marked on the support stone and support according to the requirements of the design drawings, so as to ensure the correct positioning of the bearing.
b.2 支座安装时，应防止支座出现偏压或产生过大的初始剪切变形。安装完成后，必须保证支座与上、下部结构紧密接触，不得出现脱空现象。对未形成整体的梁板结构，应避免重型车辆通过。
When the B.2 bearing is installed, it is necessary to prevent the bearing from bias or to produce excessive initial shear deformation. After installation, the bearing must be closely contacted with the upper and lower structures, and no voids occur. The heavy vehicle should be avoided when the beam slab structure is not formed.
b. 3 桥梁墩台的设计应考虑支座养护、更换的需要。任何情况下，不允许两个或两个以上的支座沿梁纵向中心线在同一支承点并排安装;在同一根梁(板)上，横向不宜设置多于两个支座;不同规格的支座不应并排安装。
The design of B. 3 bridge pier should consider the need to support maintenance and replacement. In any case, does not allow two or more than two bearings along the beam longitudinal center line on the same support mounted side by side on the same; beam (plate), transverse should not be set more than two bearings; bearing different specifications should not be installed side by side.
b. 4 支座安装后，应全面检查是否有支座漏放，支座安装方向、位置(与预埋钢板的接触、支座中心线位置)、支座规格型号是否有错，临时固定设施是否拆除，四氟滑板支座是否注入硅脂油(严禁使用润滑油代替硅脂油)等现象，一经发现，应及时调整和处理，确保支座安装后的正常工作，并记录支座安装后出现的各项偏差及异常情况。
B. 4 supports after installation, should check whether the support drain, installation direction and position of the support (contact and support center line position and pre buried steel), bearing specifications is wrong, whether the removal of temporary fixed facilities, PTFE sliding bearings are injected into the silicone oil (lubricating oil instead of silicone oil is prohibited to use). The phenomenon, once discovered, should be timely adjustment and treatment, ensure the normal work of bearing after installation, and record the deviation and abnormal situation after the installation of bearings.
b.5 支座使用阶段平均压应力σc=10MPa。支座橡胶弹性体体积Eb=2000MPa。
The average compressive stress B.5 c=10MPa during the service stage of the support. Volume of rubber elastomer in support Eb=2000MPa.
支座与混凝土接触时，摩擦系数μ=0.3;与钢板接触时，摩擦系数μ=0.2;聚四氟乙烯板与不锈钢板接触(加硅脂时)摩擦系数μ小于等于0.03,当温度低于-25℃时，μf值增大30%，滑板支座必须安装时候给四氟板表面加硅脂时。
Bearing contact with concrete, friction coefficient of =0.3; and the steel plate contact, friction coefficient =0.2; PTFE plate contact with stainless steel plate (add grease when) the friction coefficient is less than or equal to 0.03, when the temperature is lower than -25 DEG C, F value increased 30%, installed when PTFE surface to add grease when slide must support.
b.6 矩形支座安装时以短边尺寸顺桥向放置。
B.6 rectangular support installation with short side dimensions along the bridge placement.
gyz300圆型四氟板式橡胶支座 131 6657 0832
