四川麻将

 地脚螺栓四川麻将的抗拉才能就是圆钢自身的抗拉才能了，巨细等于截面面积乘以抗拉强度规划值(140MPa)就是规划时的答应抗拉承载力。地脚螺栓一般用Q235钢，即为光圆的。目前没见到过用螺纹的状况，不过要是受力需要的话也未尝不可。螺纹钢(Q345)强度大，做螺母的丝扣没有光圆的简单。

  DUIYUGUANGYUANDIJIAOLUOSHUANERYAN，MAISHENYIBANWEIQIZHIJINGDE25BEI，RANHOUZUOYIGE120mmZUOYOUZHANGDE90DUWANGOU。JIARULUOSHUANZHIJINGHENDA(RU45mm)MAISHENTAISHENDEHUA，NENGGOUZAILUOSHUANDUANBUHANFANGBAN，JIZUOYIGEDATOUJIUNENGGOULE(BUGUOYESHIYOUYI DINGYAOQIUDE)。MAISHENHEWANGOUDOUSHIWEILEBAOZHENGLUOSHUANYUGENDIDEMOCALI，BUHUISHILUOSHUANFASHENGBACHUSUNHUAI。

  SUOYI，DIJIAOLUOSHUANDEKANGLACAINENGJIUSHIYUANGANGZISHENDEKANGLACAINENGLE，JUXIDENGYUJIEMIANMIANJICHENGYIKANGLAQIANGDUGUIHUAZHI(140MPa)JIUSHIGUIHUASHIDEDAYINGKANGLACHENGZAILI。

  GUDINGDIJIAOLUOSHUANYOUCHENGWEIDUANDIJIAOLUOSHUAN，TAYUGENDIJIAOGUANZAIYIQI，YONGLAIGUDINGMEIYOUJILIEZHENDANGHECHONGJIDESHEBEI。HUODONGDIJIAOLUOSHUANYOUCHENGWEIZHANGDIJIAOLUOSHUAN，SHIYIZHONGKECHAIXIEDEDIJIAOLUOSHUAN，YONGYUGUDINGGONGZUOSHIYOUJILIEZHENDANGHECHONGJIDEZHONGXINGJIXIESHEBEI。ZHANJIEDIJIAOLUOSHUANWEIJINNIANCHANGYONGDEYIZHONGDIJIAOLUOSHUAN，QIBANFAHEYAOQIUTONGZHANGMAODIJIAOLUOSHUAN。DANZHANJIESHILIUYIBAKONGNEIZAWUCHUIJING，BINGBUDESHOUCHAO。ZHANGMAODIJIAOLUOSHUANWANGWANGBEIYONGYUGUDINGJINGZHIDEJIANDANSHEBEIHUOFUZUOSHEBEI。