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-JQGZ-II型抗震减震球形钢支座销售厂家
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JQGZ-II型抗震减震球形钢支座特点
球形钢支座传力可靠，转动灵活，它不但具备盆式橡胶支座承载能力大，容许支座位移大等特点，
而且能更好地适应支座大转角的需要，与盆式支座相比具有下列优点：
1、球形钢支座通过球面传力，不出现力的缩颈现象，作用在混凝土上的反力比较均匀；
2、球形钢支座通过球面聚四氟乙烯板的滑动来实现支座的转动过程，转动力矩小，
而且转动力矩只与支座球面半径及聚四氟乙烯板的摩擦系数有关，与支座转角大小无关，
特别适用于大转角的要求，设计转角可达0.05rad.
3、支座各向转动性能一致，适用于宽桥、曲线桥；
4、支座不用橡胶承压，不存在橡胶老化对支座转动性能的影响，特别适用于低温地区。
JQGZ-II型抗震减震球形钢支座 结构原理是安置于密封钢盆中的橡胶块，在三向受力的情况下，而产生的反力，承受桥梁的垂直荷载，同时，利用橡胶的弹性，满足梁端的转动，通过焊接在上座板上的不锈钢板与聚四氟乙烯的自由滑移，完成桥梁上部构造的水平位移。本系列产品具有结构合理，承载能力大，变形小，水平位移量大，转动灵活，并有良好的缓冲性能，是建筑连续式桥梁的支座， 盆式橡胶支座 减震铰接支座且具有重量轻，结构紧凑，构造简单，建筑高度低，加工制造方便，节省钢材，降低造价等优点，是适宜于大垮桥梁使用的较理想的支座。常用的有GPZ、GPZ（Ⅱ）、GPZ(KZ)三大类。 球型钢支座目前承载力为31个级别，承载力0.8MN-60MN，能满足大型桥梁建造的需要。www.grgcxj.cn www.yhtzjzp.com www.grgcxj.com www.grxjgs.com www.hsgrgc.com www.grxjgc.com
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