| 1. | A new prestressed bowshaped structure strain multiplier was designed to solve problem which strain amplitude is much lower than the threshold of fatigue life gage , and this strain multiplier take the advantages of entire structure , lower stiffness , good reliability and convenience to use 设计出一种弓形预应力结构应变倍增器,解决了桥梁应变幅值远远低于疲劳寿命计门槛值这一关键问题,此倍增器具有整体性强、刚度低、可靠性好、使用方便等优点。 |