SATWE总信息中侧向刚度三种参数含义
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计算模型中的部分数据:
各层刚心、偏心率、相邻层侧移刚度比等计算信息
Floor No : 层号
Tower No : 塔号
Xstif,Ystif : 刚心的X,Y 坐标值
Alf : 层刚性主轴的方向
Xmass,Ymass : 质心的X,Y 坐标值
Gmass : 总质量
Eex,Eey : X,Y 方向的偏心率
Ratx,Raty : X,Y 方向本层塔侧移刚度与下一层相应塔侧移刚度的比值(剪切刚度) Ratx1,Raty1 : X,Y 方向本层塔侧移刚度与上一层相应塔侧移刚度70%的比值
或上三层平均侧移刚度80%的比值中之较小者
Ratx2,Raty2 : X,Y 方向本层塔侧移刚度与上一层相应塔侧移刚度90%、110%或者150%比值
110%指当本层层高大于相邻上层层高1.5倍时,150%指嵌固层
RJX1,RJY1,RJZ1: 结构总体坐标系中塔的侧移刚度和扭转刚度(剪切刚度)
RJX3,RJY3,RJZ3: 结构总体坐标系中塔的侧移刚度和扭转刚度(地震剪力与地震层间位移的比)
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Floor No. 1 Tower No. 1
Xstif= -2.9025(m) Ystif= -0.4783(m) Alf = 0.0000(Degree) Xmass= -2.8108(m) Ymass= -1.3220(m) Gmass(活荷折减)= 1601.4902( 1523.7156)(t)
Eex = 0.0069 Eey = 0.0558
Ratx = 1.0000 Raty = 1.0000
Ratx1= 2.3441 Raty1= 2.1114
Ratx2= 2.5148 Raty2= 2.2651
薄弱层地震剪力放大系数= 1.00
RJX1 = 1.0101E+08(kN/m) RJY1 = 9.9743E+07(kN/m) RJZ1 = 0.0000E+00(kN/m)
RJX3 = 2.5453E+07(kN/m) RJY3 = 2.9077E+07(kN/m) RJZ3 = 0.0000E+00(kN/m)
RJX3/H = 6.3632E+06(kN/m) RJY3/H = 7.2692E+06(kN/m) RJZ3/H = 0.0000E+00(kN/m) ---------------------------------------------------------------------------
Floor No. 2 Tower No. 1
Xstif= -3.0089(m) Ystif= -0.7051(m) Alf = 0.0000(Degree) Xmass= -2.8681(m) Ymass= -1.1790(m) Gmass(活荷折减)= 1314.2793( 1230.5623)(t)
Eex = 0.0108 Eey = 0.0333
Ratx = 1.2821 Raty = 1.3200
Ratx1= 1.9303 Raty1= 1.8714
Ratx2= 1.5014 Raty2= 1.4555
薄弱层地震剪力放大系数= 1.00
RJX1 = 1.2951E+08(kN/m) RJY1 = 1.3166E+08(kN/m) RJZ1 = 0.0000E+00(kN/m)
RJX3 = 1.5512E+07(kN/m) RJY3 = 1.9673E+07(kN/m) RJZ3 = 0.0000E+00(kN/m)
RJX3/H = 5.3488E+06(kN/m) RJY3/H = 6.7840E+06(kN/m) RJZ3/H = 0.0000E+00(kN/m) ---------------------------------------------------------------------------
Floor No. 3 Tower No. 1
Xstif= -2.7991(m) Ystif= -1.0423(m) Alf = 0.0000(Degree)
Xmass= -2.8753(m) Ymass= -1.1865(m) Gmass(活荷折减)= 1315.4917( 1231.7747)(t)
Eex = 0.0058 Eey = 0.0099
Ratx = 1.0076 Raty = 0.9946
Ratx1= 1.6892 Raty1= 1.6264
Ratx2= 1.3327 Raty2= 1.3046
薄弱层地震剪力放大系数= 1.00
RJX1 = 1.3049E+08(kN/m) RJY1 = 1.3094E+08(kN/m) RJZ1 = 0.0000E+00(kN/m)
RJX3 = 1.1479E+07(kN/m) RJY3 = 1.5018E+07(kN/m) RJZ3 = 0.0000E+00(kN/m)
RJX3/H = 3.9584E+06(kN/m) RJY3/H = 5.1788E+06(kN/m) RJZ3/H = 0.0000E+00(kN/m) ---------------------------------------------------------------------------
Floor No. 4 Tower No. 1
Xstif= -2.9414(m) Ystif= -0.7743(m) Alf = 0.0000(Degree)
Xmass= -2.8753(m) Ymass= -1.1865(m) Gmass(活荷折减)= 1315.4917( 1231.7747)(t)
Eex = 0.0051 Eey = 0.0289
Ratx = 1.0000 Raty = 1.0000
Ratx1= 1.5737 Raty1= 1.5225
Ratx2= 1.2691 Raty2= 1.2454
薄弱层地震剪力放大系数= 1.00
RJX1 = 1.3049E+08(kN/m) RJY1 = 1.3094E+08(kN/m) RJZ1 = 0.0000E+00(kN/m)
RJX3 = 9.5711E+06(kN/m) RJY3 = 1.2791E+07(kN/m) RJZ3 = 0.0000E+00(kN/m)
RJX3/H = 3.3004E+06(kN/m) RJY3/H = 4.4106E+06(kN/m) RJZ3/H = 0.0000E+00(kN/m)
此计算模型首层层高4米,以上均为2.9米。(此模型采取的是剪力墙结构,仅作举例说明)
以上“Ratx,Raty : X,Y 方向本层塔侧移刚度与下一层相应塔侧移刚度的比值(剪切刚度)”此处的剪切刚度计算参照高规附录E,用以判断转换层上下结构侧向刚度比。例如,假设此模型为框支转换结构,一层为框支层,则按照附录E.0.1要求,抗震设计时转换层与相邻上层侧向刚度比不应小于0.5,宜接近1,在此处,即第二层的Ratx、Raty要小于2。此时二层的Ratx=RJX1(2F)/RJX1(1F)=1.2951*10/1.0101=1.2821;
Raty=RJY1(2F)/RJY1(1F)=1.3166*10/9.9743=1.3200
如果在二层转换,则三层的Ratx、Raty要小于1/0.6=1.6667。计算方法类似。
根据高规5.3.7,地下室顶板作为上部结构嵌固端,地下一层与首层侧向刚度比