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【单选题】
下列关于钢筋混凝土高层建筑中框架-核心筒结构与板柱-剪力墙结构结构形式的区分,以及抗震设计中对它们不同要求的一些说法,其中全部正确?()[2008年真题]
A.
框架-核心筒结构必须有核心筒;板柱-剪力墙结构无核心筒
B.
框架-核心筒结构有周边框架梁;板柱-剪力墙结构无周边框架梁
C.
框架-核心筒结构的核心筒与周边框架之间宜采用梁板结构;板柱-剪力墙结构楼盖可无内部纵横梁
D.
框架-核心筒结构的各层框架柱只需承担相应方向地震剪力的20%;板柱-剪力墙结构中的各层板柱部分承担相应方向地震剪力的20%
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