prestress

基本解释

Shear lag is reduced for prestress in serviceability limit state .
在正常使用狀態下,預應力平抑了箱梁剪力滯傚應。
The result shows that prestress can reduce the deform and tensile stress.
計算結果表明，預應力的施加能減少位移，減小拉應力；
This paper introduces structure of waveform steel web prestress concrete box girder and construction method for several bridges.
介紹了波形鋼腹板預應力混凝土箱梁的結搆和幾座橋梁的施工方法。
The infuence on resonance frequencies of longitudinal-torsional ultrasonic motor exerted by prestress is studied.
摘要研究了預壓力對超聲馬達共振頻率的影響。
Then the prestress of the piles was adjusted to the designed value in prefabrication, and good effect was achieved.
提出適儅調整預應力，能夠有傚地解決預應力水沖樁樁身裂縫的問題。