006-《建筑结构(第2版)》-第六章受拉构件承载力计算讲解.doc

PAGE PAGE 320 第六章　受拉构件承载力计算 【学习重点】 轴心受拉构件承载力计算；偏心受拉构件承载力计算。 【学习目标】 了解受拉构件的种类；熟悉轴心受拉构件计算的适用范围；掌握受拉构件承载力的计算方法；熟悉偏心受压构件的构造要求及计算适用范围；掌握偏心受拉构件承载力的计算方法。 钢筋混凝土受拉构件按纵向拉力作用位置的不同分为轴心受拉和偏心受拉两种类型。当纵向拉力math display=block semantics miN/mi annotation encoding=MathType-MTEFMathType@MTEF@5@5@+=feaaguart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLnhiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr4rNCHbWexLMBbXgBd9gzLbvyNv2CaeHbl7mZLdGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=xfr=xb9adbaqaaeGaciGaaiaabeqaamaabaabauaakeaacaWGobaaaa@3FF0@/annotation /semantics /math 作用在截面形心时，称为轴心受拉构件，如钢筋混凝土屋架下弦杆、高压圆形水管及圆形水池等。当纵向拉力math display=block semantics miN/mi annotation encoding=MathType-MTEFMathType@MTEF@5@5@+=feaaguart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLnhiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr4rNCHbWexLMBbXgBd9gzLbvyNv2CaeHbl7mZLdGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=xfr=xb9adbaqaaeGaciGaaiaabeqaamaabaabauaakeaacaWGobaaaa@3FF0@/annotation /semantics /math 作用在偏离截面形心时，或截面上既作用有纵向拉力math display=block semantics miN/mi annotation encoding=MathType-MTEFMathType@MTEF@5@5@+=feaaguart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLnhiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr4rNCHbWexLMBbXgBd9gzLbvyNv2CaeHbl7mZLdGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=xfr=xb9adbaqaaeGaciGaaiaabeqaamaabaabauaakeaacaWGobaaaa@3FF0@/annotation /semantics /math ，又作用有弯矩math display=block semantics miM/mi annotation encoding=MathType-MTEFMathType@MTEF@5@5@+=feaaguart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLnhiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr4rNCHbWexLMBbXgBd9gzLbvyNv2CaeHbl7mZLdGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=xfr=xb9adbaqaaeGaciGaaiaabeqaamaabaabauaakeaacaWGnbaaaa@3FEF@/annotation /semantics /math 的