摘要
进行了钢桥纵横梁接连处维护加强效果的研究,研究表明直角缺口与圆形缺口的应力比为2.01,采用圆形缺口的疲劳寿命为直角缺口的7倍~8倍,采用Upper flange splice加强对延长疲劳寿命效果最为突出。
The paper researches the maintenance and strengthen effect in joints of crossbar in steel bridge,indicates that the stress ratio of the right angle and circular notches is 2.01,illustrates the fatigue life of the circular notch is 7 to 8 times of the one for right angle,and points out the effect of prolonging the fatigue life is outstanding by adopting Upper flange splice.
出处
《山西建筑》
2009年第30期337-338,共2页
Shanxi Architecture
关键词
钢桥
加强效果
应力
疲劳寿命
steel bridge
strengthen effect
stress
fatigue life
