高危转换带双塔结构

各位大侠你们好,小弟在这里请教几个问题,希望大家帮我解答解答.
本工程简介:框支剪力墙结构体系,转换层在5层,地下2层,地上31层,地震烈度6度地区.双塔(无法分开计算),采取软件正版PKPM.
1、双塔结构的周期比如何计算并控制?
2、剪重比6度地区如何控制(抗规5.2.5)?
3、刚度比如何控制(只能采取高规E.0.2条) !如: ---------------------------------------------------------------------------
Floor No. 5 Tower No. 1
Xstif= 25.3100(m) Ystif= -20.3349(m) Alf = 31.3563(Degree)
Xmass= 26.7034(m) Ymass= -18.7096(m) Gmass= 11360.2656(t)
Eex = 0.0435 Eey = 0.0517
Ratx = 0.6137 Raty = 0.6117
Ratx1= 3.7478 Raty1= 3.0392 薄弱层地震剪力放大系数= 1.00
RJX = 1.0512E+08(kN/m) RJY = 1.0913E+08(kN/m) RJZ = 1.0781E+11(kN/m)
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Floor No. 6 Tower No. 1
Xstif= 5.1105(m) Ystif= -3.8368(m) Alf = 0.0000(Degree)
Xmass= 5.1566(m) Ymass= -4.3552(m) Gmass= 851.5920(t)
Eex = 0.0035 Eey = 0.0440
Ratx = 0.3384 Raty = 0.4165
Ratx1= 1.2836 Raty1= 1.2802 薄弱层地震剪力放大系数= 1.00
RJX = 3.5568E+07(kN/m) RJY = 4.5454E+07(kN/m) RJZ = 6.3153E+09(kN/m)
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Floor No. 6 Tower No. 2
Xstif= 48.4508(m) Ystif= -32.3343(m) Alf = -23.7098(Degree)
Xmass= 48.3826(m) Ymass= -33.3166(m) Gmass= 923.7524(t)
Eex = 0.0057 Eey = 0.0783
Ratx = 0.3757 Raty = 0.3293
Ratx1= 1.1651 Raty1= 1.1666 薄弱层地震剪力放大系数= 1.00
RJX = 3.9490E+07(kN/m) RJY = 3.5939E+07(kN/m) RJZ = 5.6577E+09(kN/m)
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请问各位刚度比如果看待?谢谢,请多指教!