【摘要】 本文介绍预弯梁的意义及物理概念。对预弯梁的优越性及制造工艺作一简要说明,提出正截面强度的理论模式,同时介绍正截面强度试验结果,并与非预弯的劲性加筋梁作了试验比较。更多还原

【Abstract】 This paper introduces the significance and physical concept of the preflexbeam. A brief description is given for the advantages as well as the manufac-turing technique of this beam, and a theory based on ultimate moment is de-veloped. The experimental results are also presented and compared with thoseof unpreflex beam.更多还原