usage load meaning in Chinese

使用负荷

Secondly , through the examination and observation of the structural model of the cast - in - place pre - stressed compound floor slab system , under the normal usage load , the normal usage limit - state and the failing load , we have validated the space working - feature of the structural model under variable loads , including the rigidity , the crack , failing - state , failing load and the stress variation of the pre - stressed bar , and so on
其次，通过对该体系的结构模型在正常使用荷载、正常使用极限状态和破坏状态下的试验研究，验证了现浇预应力复合楼盖体系模型结构在各种荷载作用下的空间工作性能，包括刚度、裂缝、破坏形态、极限承载力及预应力筋的应力变化状态等。