| 伸臂式结构地震剪力图和弯矩图的理论包络线 |
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| 引用本文： | 王前信,张艳红,王珞珈. 伸臂式结构地震剪力图和弯矩图的理论包络线[J]. 地震工程与工程振动, 1998, 18(2): 59-68 |
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| 作者姓名： | 王前信 张艳红 王珞珈 |
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| 作者单位： | 1. 中国地震局工程力学研究所，中国哈尔滨 150080.
2. 加州理工学院土木系，美国加州 91125 |
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| 摘 要： | 本文以人工工振型作为理论工具、推演出伸臂式结构地震剪力地震弯矩的主、次上界的简练公式。不难理解，上界地震剪力图和弯矩图就分别相当于无数地震剪力图的弯矩图的包络线。文中还推演出主、次上界与等效静力解之间的一个十分简明的理论关系。
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| 关 键 词： | 人工振型 伸臂式结构 理论包络线 地震剪力图 |
THEORETICAL ENVELOPES OF SEISMIC SHEAR FORCE AND BENDING MOMENT DIAGRAMS OF CANTILEVER-TYPED STRUCTURES |
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| Wang Qianxin Zhang Yanhong. THEORETICAL ENVELOPES OF SEISMIC SHEAR FORCE AND BENDING MOMENT DIAGRAMS OF CANTILEVER-TYPED STRUCTURES[J]. Earthquake Engineering and Engineering Vibration, 1998, 18(2): 59-68 |
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| Authors: | Wang Qianxin Zhang Yanhong |
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| Abstract: | In this paper, taking the artificial modes as the theoretical tool, concise forznulas fbr the principal and secondary upper bound seismic shear foroe and bending moment of the cantilever-typed structure are derived. Practically , the upper bound seismic shear force and bending moment diagrams are the envelopes of countless scismic shear force and bending moment diagfams. Besides, a simple relationship between the upper bounds and the equivalent static solution is fouand. |
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| Keywords: | Principal upper bound Seoondary upper bound Artificial mode: Design modei Nnn-contribution mode |
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