《混凝土结构设计规范》GB 50010-2002

-e_a) (7.3.4-6)
  式中
  e'--轴向压力作用点至受压区纵向普通钢筋和预应力钢筋的合力点的距离；
  h'₀--纵向受压钢筋合力点至截面远边的距离。
  4矩形截面对称配筋(A'_s=A_s)的钢筋混凝土小偏心受压构件，也可按下列近似公式计算纵向钢筋截面面积；

(7.3.4-7)

  此处，相对受压区高度ξ可按下列公式计算：

(7.3.4-8)

字串9

  第7.3.5条   I形截面偏心受压构件的受压翼缘计算宽度b'_f应按本规范第7.2.3条确定，其正截面受压承载力应符合下列规定：
  1当受压区高度x≤h'_f时，应按宽度为受压翼缘计算宽度b'_f的矩形截面计算。
  2当受压区高度x>h'_f时(图7.3.5)，应符合下列规定：

N≤α1fc[bx+(b'f-b)h'f]+f'yA's-σsAs-(σ'p0-f'py)A'p-σpAp

(7.3.5-1)

Ne≤α1fc[bx(h0-)+(b'f-b)h'f(h0-)]+f'yA's(h0-a's)-(σ'p0-f'py)A'p(h0-a'p)

(7.3.5-2)

Ne'≤fc[bh(h'0-)+(bf-b)hf(h'0-)+(b'f-b)h'f(-a')]+f'yAs(h'0-as)-(σp0-f'py)Ap(h'0-ap)

(7.3.5-3)

字串3

e'=y'-a'-(e0-ea)

(7.3.5-4)

  式中
  y'--截面重心至离轴向压力较近一侧受压边的距离，当截面对称时，取y'=h/2.
  注：对仅在离轴向压力较近一侧有翼缘的T形截面，可取bf
共108页: 上一页 [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17] [18] [19] [20] [21] [22] [23] [24] [25] [26] [27] 28 [29] [30] [31] [32] [33] [34] [35] [36] [37] [38] [39] [40] [41] [42] [43] [44] [45] [46] [47] [48] [49] [50] [51] [52] [53] [54] [55] [56] [57] [58] [59] [60] [61] [62] [63] [64] [65] [66] [67] [68] [69] [70] [71] [72] [73] [74] [75] [76] [77] [78] [79] [80] [81] [82] [83] [84] [85] [86] [87] [88] [89] [90] [91] [92] [93] [94] [95] [96] [97] [98] [99] [100] [101] [102] [103] [104] [105] [106] [107] [108] 下一页

Tags：《混凝土结构设计规范》GB 50010-2002

搜爱设计 - Saoai.Com

上一篇：电视矮柜3Dmax模型图库1
下一篇：落地灯3D模型图库