In frequent bending stress condition, fatigue cracking occurred due to the cracking source had been initiated in welding heat affected zone.
在承受频繁的弯曲应力作用后，在其焊接热影响区萌生了裂纹源进而发生疲劳开裂。
The defects of the traditional bridge deck pavement of poor heat stability, easy cracking and poor fatigue resistance and water resistance.
克服了传统桥面铺装后，热稳定性差，易开裂，抗疲劳、抗水性差等缺陷。
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