青岛胶州湾海底隧道射流风机预埋钢板拉拔试验方法  

Pull-out test methods of pre-embedded steel plate for jet fan in undersea tunnel of Qingdao Jiaozhou Bay

作　　者：高双飞[1] 周波[1] 杨厚明[2] 

机构地区：[1]北京北安时代电梯安装工程有限公司,北京100045 [2]青岛理工大学,山东青岛266033

出　　处：《工程建设》2011年第4期33-34,50,共3页Engineering Construction

摘　　要：介绍了一种检测隧道射流风机预埋钢板抗拉强度的工程实用方法:为方便与检测设备连接,每块钢板中心处预先焊接一个螺栓,由另一个螺栓与焊接螺栓连接,螺栓穿过穿心千斤顶并用螺帽固定。设备安装好后,通过对穿心千斤顶加压,穿心千斤顶通过其下部的螺帽对螺栓产生拉力,预埋钢板也承受同样的拉力,从而可以检测预埋钢板抗拉的强度。A practical engineering method for testing tensile strength of pre-embedded steel plate for tunnel jet fan was introduced.In order to facilitate and test equipment connection,a bolt is pre-welded on the centre of every steel plate,and it will be connected with another bolt,the bolt goes through the jack and is fixed with nut cap.After installation of equipment,pressure is applied on piercing jack,the jack produces pulling force on the bolt by the lower nut cap,the pre-embedded steel plate bears the same pulling force,thus the tensile strength of the pre-embedded steel plate can be measured.

关 键 词：预埋钢板 拉拔试验 射流风机 隧道 

分 类 号：TU375[建筑科学—结构工程]