板式橡膠支座的初始剪切變形如何避免：

橡膠支座應選在年平均氣溫時進行
，盡量不要在Z高氣溫或者Zdiqiwenshijinxinganzhuanggongzuo，jinliangjianshaoyouyuwaijiewendubianhuazaochengliangtidepengzhanghuoshousuoyinqizhizuodejianqiebianxing。dangzaibixuzaibushiyidehuanjingxiashigongshi
，kaolvdaowenduyingxiang，zailuolianghoubuyaojiyuchaichujialiangsheshi，dengdaomeipianliangbanluoxiahouyaozaixijianzhazhizuoshifouyouchushijianqiebianxingxianxiang，ruguoyoubianxingyidingyaojinxingtiaozheng，tiaozhengshizhiyuyaojiangliangbanyiduanshaoweiqigao，zhizuohuiyinzishendanxingzidonghuifu
，fuwei。zheyangkeyijianshaochushijianqiebianxingyinqideyingxiang。ruojialiangshebeichaichuhou，zhizuofashengbianxing
，keyongqianjindingdengxiangyingqizhonggongjujiangliangduandingqi，yikaozhizuodehuifulizidongfuwei。ruozhizuobianxingyanzhongyinggaijinxinggenghuan。

板(ban)式(shi)橡(xiang)膠(jiao)支(zhi)座(zuo)因(yin)外(wai)力(li)影(ying)響(xiang)發(fa)生(sheng)剪(jian)切(qie)變(bian)形(xing)，這(zhe)是(shi)常(chang)見(jian)現(xian)象(xiang)

，我(wo)們(men)需(xu)要(yao)做(zuo)的(de)就(jiu)是(shi)減(jian)少(shao)橡(xiang)膠(jiao)支(zhi)座(zuo)的(de)剪(jian)切(qie)變(bian)形(xing)
，橡(xiang)膠(jiao)支(zhi)座(zuo)發(fa)生(sheng)過(guo)大(da)的(de)剪(jian)切(qie)變(bian)形(xing)會(hui)加(jia)劇(ju)橡(xiang)膠(jiao)的(de)老(lao)化(hua)
，嚴(yan)重(zhong)縮(suo)短(duan)橡(xiang)膠(jiao)的(de)支(zhi)座(zuo)的(de)使(shi)用(yong)壽(shou)命(ming)。板(ban)式(shi)橡(xiang)膠(jiao)支(zhi)座(zuo)的(de)允(yun)許(xu)剪(jian)切(qie)模(mo)量(liang)為(wei) 1.0Mpa
，允許剪切角正切值 tga ≤0.7 

，所以板式橡膠支座在外力因素的影響下，其Z大剪切角正切值不大於 0.7時不影響它的使用性能。