4. {0>技术性能<}0{>Technical performance<0}
4.1 {0>SQMZ型双曲面铸造钢支座竖向承载力、水平承载力、位移、转角和摩擦系数应满足支座设计要求。<}0{>The vertical bearing capacity, horizontal bearing capacity, displacement, turning angle and friction coefficient of the SQMZ hyperboloidal cast steel bearing must satisfy the requirements of design.<0}
4.1.1 {0>支座适用梁型：<}0{>The applicable beams of the bearings:<0}
{0>SQMZ－I 2300、SQMZ－I 3000型双曲面铸造钢支座适用单向简支T梁;<}0{>SQMZ－I 2300 and SQMZ－I 3000 hyperboloidal cast steel bearings are applicable to one-way simple T beams;<0}
4.1.2 {0>支座竖向承载力：<}0{>Vertical bearing capacity of the bearing:<0}
{0>SQMZ－I 2300、SQMZ－Ⅱ 2300支座竖向承载力2300KN;<}0{> The vertical bearing capacity of SQMZ－I 2300 and SQMZ－Ⅱ 2300 bearings is 2300KN;<0}
4.1.3 {0>支座可承受水平力：<}0{>The bearable horizontal force for the bearing:<0}
（1）{0>SQMZ－I型：活动方向可承受的水平力为竖向承载力的5%;<}0{>For SQMZ－I bearings: the bearable horizontal force in the moving direction is 5% of vertical bearing capacity;<0}
{0>固定方向可承受的水平力为竖向承载力的20%。<}0{> the bearable horizontal force in the fixed direction is 20% of vertical bearing capacity.<0}
4.1.4 {0>设计转角：支座顺桥向设计转角为0.02rad，横桥向设计转角为0.01rad。<}0{>designed turning angle: the designed turning angle for the longitudinal direction of the bridge is 0.02rad and that for cross direction of the bridge is 0.01rad.<0}
4.1.5 {0>设计位移：<}0{>The designed displacement.<0}
{0>支座多向活动(DX)支座和纵向活动（ZX）支座顺桥向设计位移为±30mm。<}0{> The designed displacement of the multidirectional mobile bearings (DX) and longitudinal mobile bearings （ZX） on the longitudinal direction of the bridge is ±30mm.<0}
4.1.6 {0>设计地震峰值加速度：以上各类型支座设计地震峰值速度均为0.15g<a≤0.2g。<}0{>The designed earthquake motion peak acceleration is 0.15g<a≤0.2g.<0}
4.2 {0>固定支座和单向活动支座非活动方向设计滑动间隙为0.5mm。<}0{>The designed sliding gap of the fixed bearings and one-way mobile bearings for non-movable direction is 0.5mm.<0}
4.3 {0>支座设计转角：顺桥向为0.02rad; 横桥向为0.01rad。<}0{>The designed turning angle: 0.02rad for longitudinal direction and 0.01rad for transverse direction.<0}
4.4 {0>支座适用温度范围：-50℃～+60℃。<}0{>Range of applicable temperature of the bearings: -50℃～+60℃.<0}
4.5 {0>支座可以用于20‰坡道上。<}0{>The bearings can be used on 20‰ramps.<0}{0>当用于坡道上时，可采取支座顶板设置坡度调整或梁底混凝土调整。<}0{>When the bearings are used on ramps, top plates of the bearings or concrete on the beam bottom will be adjusted to suit the gradient of the ramps.<0}{0>调整后线路坡度与支座顶板顶坡度差值不应大于4‰。<}0{>After adjustment the difference between the gradients of the ramp line and the top plates should not exceed 4‰.<0}
4.6 {0>活动支座摩擦系数：温度高于-25℃时μ≤0.03，温度低于-25℃时μ≤0.05。<}0{>The friction coefficient of mobile bearings: μ≤0.03 when temperature is above -25℃ and μ≤0.05 when temperature is below -25℃.<0}

华译网北京翻译公司翻译过大量有关技术性能及要求的文件资料,Beijing Chinese Translation Service Company has translated many technical documents about Technical performance and requirements

5. {0>技术要求<}100{>Technical requirements<0}
5.1 {0>支座用材<}0{>Materials used by the bearings<0}
5.1.1 {0>支座用钢材、不锈钢板、聚四氟乙烯板、硅脂应符合《铁路桥梁钢支座》的要求。<}0{>Steel, stainless steel, 、polytetrafluoroethylene plates and silicone grease must comply with the requirements of Steel Bearings For Railway bridges.<0}
5.1.2 {0>单向活动支座导槽的滑板采用SF-I三层复合板，其物理机械性能应满足TB/T2331的要求。<}0{>SF-I three-layer composite boards will be used for the sliding plate of channel guide of the one-way mobile bearings. The physical properties of the SF-I boards must meet the requirements of TB/T2331.<0}
5.1.3 {0>支座调高垫板及支座连接板采用Q235D，其化学成分及机械性能应符合GB700—1988的要求。<}0{>The adjustment liner plates and connecting plates of the bearings will use Q235D steel, the chemical composition and mechanical properties of which should meet the requirements of GB700—1988.<0}
5.1.4 {0>硬铬镀层：SQMZ型双曲面铸钢支座凸双曲面衬板表面应镀厚度不小于100μm的硬铬层，镀铬用基层钢板不得有表面孔隙、收缩裂纹和疤痕，镀铬层应满足GB/T11379的要求。<}0{>Hard chromium coating: the surface of the convex hyperboloidal backing plates of SQMZ hyperboloidal cast steel bearings should be coated with a hard chromium layer with a thickness of at least 100μm. There should be no surface porosity, shrinkage cracking or scars on the substrate steel plates for chromium coating and the chromium coating must meet the requirements of GB/T11379.<0}
5.2 {0>支座的加工制造<}0{>Processing and fabrication of the bearings<0}
5.2.1 {0>支座各部件加工误差、组装后的尺寸和间隙误差应符合设计图纸要求。<}0{>The processing deviations of each component and dimensional and clearance deviations after assembly of the bearings must meet the requirements of design drawings.<0}{0>未注尺寸公差等级不得低于GB/T1804-2000(m)级要求。<}0{>Dimensional deviation level should not be lower than the requirements of GB/T1804-2000(m) grade when there is no specific indication.<0}
5.2.2 {0>凸双曲面衬板和凹双曲面下支座板顺桥向或横桥向曲面的面轮廓间隙值△为：<}0{>The clearance value △ for the curved face profile on the longitudinal or transverse direction of the bridge of the convex hyperboloidal backing plates and concave hyperboloidal lower bearing plates are:<0}
{0>当L>600mm时，△≤0.0003L;<}0{>When L>600mm, △≤0.0003L;<0}
{0>当L≤600mm时，△≤0.2mm。<}0{>When L≤600mm, △≤0.2mm.<0}
{0>其中L为双曲面聚四氟乙烯板顺桥向或横桥向的水平投影长度。<}0{>Wherein L is the horizontal projected length of the hyperboloidal polytetrafluoroethylene plates on the longitudinal or transverse direction of the bridge.<0}
5.3 支座防腐涂装及防尘体系Anti-corrosion coatings and dustproof system of the bearings
5.3.1 支座、梁底螺栓、地脚螺栓和螺栓标准件防腐涂装应符合《铁路桥梁钢支座》的要求。The anti-corrosion coatings of the bearings, bolts on the beam bottom, anchor bolts and standard parts for bolts should comply with the requirements of Steel Bearings for Railway Bridges.
5.3.2 支座防尘装置应严格按照设计图纸的要求进行制造、安装。The dustproof devices of the bearings must be manufactured and installed strictly according to the requirements of design drawings.
5.4 支座组装Assembly of the bearings
5.4.1 凡待组装主要零部件必须有质检部门合格标记，外购及外协件必须附有关项目检验报告单或证明合格的证件时，方可进行组装。Major components to be assembled must have certificate markings of quality inspection authorities and purchased and outsourced parts must have test reports or certificates for related items before assembly.
5.4.2 SQMZ型双曲面铸造钢支座应在专用的平台上进行组装。SQMZ hyperboloidal cast steel bearing should be assembled on special platform.组装时支座上平和底平面不平行度不大于长边尺寸的2‰上、下支座板对称线垂直投影不重合偏差不超过±0.5mm。The nonparallelism between the top and bottom faces of the bearings must not exceed 2‰ of the long side measurement and the misalignment deviation for the vertical projection of the symmetric line of the top and bottom bearing plates must not exceed ±0.5mm.上、下支座板相对水平扭转转角度偏差水在于±0.1o。Deviation for the relative horizontal torsion angle of the top and bottom bearing plates must not exceed ±0.1o.支座各部位位置正确后预压50kN荷载，然后用临时连接板将支座接为整体。When all components of a bearing are correctly positioned a 50kN loaded is pre-applied, then the bearing will be connected to the whole piece with temporary connecting plates.
5.4.3 SQMZ型双曲面铸钢支座凹双曲面聚四氟乙烯板与支座下支座板粘接时，应采用与之配套的凸双曲面衬板作为成型模板进行压紧。Convex hyperboloidal backing plates should be used as the forming templates to press tightly when concave hyperboloidal polytetrafluoroethylene plates of SQMZ hyperboloidal cast steel bearings are bonded to the lower bearing plates.
5.4.4 支座组装后，非活动方向滑动间隙偏差不得超过±0.2mm。When the bearing is assembled, deviation for sliding clearance of non-movable direction must not exceed ±0.2mm.
5.4.5
支座组装后聚四氟乙烯板4个角点的外露高度容许偏差为0 ~ ＋0.2mm。 When the bearing is assembled, the allowable deviation for the exposed height of the four coners of polytetrafluoroethylene plates is 0 ～ ＋0.2mm.
5.4.6
支座组装后整体高度容许偏差： When the bearing is assembled, the allowable deviation for overall height is:
竖向承载力<20000kN时，偏差不大于±2mm; not exceed ±2mm when vertical bearing capacity is < 20000kN;