The old and new concrete of composite beam with doubleT-section was tested to investigate the effect of tension sequence of prestressing tendon on mechanical behavior of composite beam.
In textile plant, doubleT-beam has been gradually applied.
在新型纺织厂房内,双T板逐步得到应用。
3
Researching the relative displacement between the double-T plates and the longitudinal beam and the longitudinal maximum distance to set a frame as the first measure to resist the earthquake.