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熊進(jìn)剛  伍衛(wèi)秀    （南昌大學(xué)土木學(xué)院 330029） 

程文瀼     （東南大學(xué)土木工程學(xué)院  南京 210018）

[提要]  分析了鋼筋混凝土簡(jiǎn)支短梁和連續(xù)短梁實(shí)測(cè)荷載-撓度曲線的特征，探討了剪切效應(yīng)和斜向開裂對(duì)鋼筋混凝土短梁剛度和變形的影響，提出了考慮剪切效應(yīng)和斜裂縫影響的鋼筋混凝土短梁變形的計(jì)算公式，計(jì)算結(jié)果與試驗(yàn)結(jié)果符合較好。
[關(guān)鍵詞]  短梁  轉(zhuǎn)換梁  剛度  變形

 

According to others' and the author's test results, the characteristic of the tested load-deflection curve of R.C.short beams with simple supports and continuous supports is analysed. The effects of shear and inclined cracks on the deformation are discussed. The calculating formulas of the deformation considering shear effect and inclined cracks are given out, and the calculating results are consistent with the test results.
Keywords:  short beam; transfer girder; stiffness; deformation