本方法适用于新制的,使用中的及检修后的混凝土成型用振动台的校验。ìÉɦü¥à·bbs.3c3t.comh?·ÁÓÐm}
ìÉɦü¥à·bbs.3c3t.comh?·ÁÓÐm}一、总则ìÉɦü¥à·bbs.3c3t.comh?·ÁÓÐm}
ìÉɦü¥à·bbs.3c3t.comh?·ÁÓÐm} 混凝土成型用标准振动台系用于按GB/T50081-2002、GBJ82-1985中成型混凝土试件时的专用设备。ìÉɦü¥à·bbs.3c3t.comh?·ÁÓÐm}
ìÉɦü¥à·bbs.3c3t.comh?·ÁÓÐm}二、技术要求ìÉɦü¥à·bbs.3c3t.comh?·ÁÓÐm}
ìÉɦü¥à·bbs.3c3t.comh?·ÁÓÐm}1、应有铭牌,其中包括制造厂、型号、规格出厂编号与日期。ìÉɦü¥à·bbs.3c3t.comh?·ÁÓÐm}
ìÉɦü¥à·bbs.3c3t.comh?·ÁÓÐm}2、外表面应平整光洁,振动平稳,声音正常,台面应水平。ìÉɦü¥à·bbs.3c3t.comh?·ÁÓÐm}
ìÉɦü¥à·bbs.3c3t.comh?·ÁÓÐm}3、电气部件绝缘性能应良好。ìÉɦü¥à·bbs.3c3t.comh?·ÁÓÐm}
ìÉɦü¥à·bbs.3c3t.comh?·ÁÓÐm}4、基座与基础用地脚螺栓固定。ìÉɦü¥à·bbs.3c3t.comh?·ÁÓÐm}
ìÉɦü¥à·bbs.3c3t.comh?·ÁÓÐm}5、振动台面尺寸:1000×1000±5mm。ìÉɦü¥à·bbs.3c3t.comh?·ÁÓÐm}
ìÉɦü¥à·bbs.3c3t.comh?·ÁÓÐm}6、振动频率:50±3HZ。ìÉɦü¥à·bbs.3c3t.comh?·ÁÓÐm}
ìÉɦü¥à·bbs.3c3t.comh?·ÁÓÐm}7、空载时的有效振幅为0.5±0.1mm。ìÉɦü¥à·bbs.3c3t.comh?·ÁÓÐm}
ìÉɦü¥à·bbs.3c3t.comh?·ÁÓÐm}三、校验用标准器具ìÉɦü¥à·bbs.3c3t.comh?·ÁÓÐm}
ìÉɦü¥à·bbs.3c3t.comh?·ÁÓÐm}8、二级测振仪;ìÉɦü¥à·bbs.3c3t.comh?·ÁÓÐm}
ìÉɦü¥à·bbs.3c3t.comh?·ÁÓÐm}9、2m长钢卷尺,分度值1mm。ìÉɦü¥à·bbs.3c3t.comh?·ÁÓÐm}
ìÉɦü¥à·bbs.3c3t.comh?·ÁÓÐm}四、校验方法ìÉɦü¥à·bbs.3c3t.comh?·ÁÓÐm}
ìÉɦü¥à·bbs.3c3t.comh?·ÁÓÐm}(一)外观与工作状态校验ìÉɦü¥à·bbs.3c3t.comh?·ÁÓÐm}
ìÉɦü¥à·bbs.3c3t.comh?·ÁÓÐm}10、用感官和启动试验检查,要符合1、2、3、4条规定。ìÉɦü¥à·bbs.3c3t.comh?·ÁÓÐm}
ìÉɦü¥à·bbs.3c3t.comh?·ÁÓÐm}(二)技术参数校验方法:ìÉɦü¥à·bbs.3c3t.comh?·ÁÓÐm}
ìÉɦü¥à·bbs.3c3t.comh?·ÁÓÐm}11、用钢卷尺测量振动台面的尺寸。ìÉɦü¥à·bbs.3c3t.comh?·ÁÓÐm}
ìÉɦü¥à·bbs.3c3t.comh?·ÁÓÐm}12、用测振仪测振动台面的频率与有效振幅时,应待振动台振动平稳后测,测振点布置在振动台的四周边,共4点(如图一所示)如不能同时测四个点时,至少要同时测2个点。先测1、2点,后测3、4点。所测4个点均应符合第6、7条的要求。ìÉɦü¥à·bbs.3c3t.comh?·ÁÓÐm}
ìÉɦü¥à·bbs.3c3t.comh?·ÁÓÐm}13、振动频率可根据电机转速测定,也可以采用测振仪测定。 ìÉɦü¥à·bbs.3c3t.comh?·ÁÓÐm}
ìÉɦü¥à·bbs.3c3t.comh?·ÁÓÐm}五、校验结果评定ìÉɦü¥à·bbs.3c3t.comh?·ÁÓÐm}
ìÉɦü¥à·bbs.3c3t.comh?·ÁÓÐm}14、新振动台必须全部符合技术要求。ìÉɦü¥à·bbs.3c3t.comh?·ÁÓÐm}
ìÉɦü¥à·bbs.3c3t.comh?·ÁÓÐm}15、使用中的振动台应符合6、7条技术要求。ìÉɦü¥à·bbs.3c3t.comh?·ÁÓÐm}
ìÉɦü¥à·bbs.3c3t.comh?·ÁÓÐm}16、校验周期壹年。ìÉɦü¥à·bbs.3c3t.comh?·ÁÓÐm}
ìÉɦü¥à·bbs.3c3t.comh?·ÁÓÐm}六、附录ìÉɦü¥à·bbs.3c3t.comh?·ÁÓÐm}
ìÉɦü¥à·bbs.3c3t.comh?·ÁÓÐm}校验附录表ìÉɦü¥à·bbs.3c3t.comh?·ÁÓÐm}
ìÉɦü¥à·bbs.3c3t.comh?·ÁÓÐm}混凝土成型用标准振动台校验记录表ìÉɦü¥à·bbs.3c3t.comh?·ÁÓÐm}
ìÉɦü¥à·bbs.3c3t.comh?·ÁÓÐm}仪器编号: 校验编号:ìÉɦü¥à·bbs.3c3t.comh?·ÁÓÐm}
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