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首页> 外文期刊>Journal of Earthquake Engineering >AUTOMATIC MINIMIZATION OF THE RIGIDITY ECCENTRICITY OF 3D REINFORCED CONCRETE BUILDINGS
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AUTOMATIC MINIMIZATION OF THE RIGIDITY ECCENTRICITY OF 3D REINFORCED CONCRETE BUILDINGS

机译：自动最小化3D钢筋混凝土建筑的刚度

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摘要

The objective of this paper is to obtain the optimum design of 3D reinforced concrete buildings in terms of their performance under earthquake loading. This goal is achieved by considering the minimisation of the eccentricity between the mass centre and the rigidity centre of each storey layout as the optimisation objective in order to produce torsionally balanced structures. This problem is considered as a combined topology and sizing optimisation problem. The location and the size of the columns and the shear walls of the structure of each storey layout constitute the design variables. Apart from the constraints imposed by the seismic and reinforced concrete structure design codes, architectural restrictions are also taken into account. The test examples showed that a reduction in the structural cost of the building is achieved by minimising the eccentricity between the mass centre and the rigidity centre of each storey layout. Evolutionary optimisation algorithms and in particular a specially tailored algorithm based on Evolution Strategies is implemented for the solution of this type of structural optimisation problems.
机译：本文的目的是根据地震荷载下的性能获得3D钢筋混凝土建筑物的最佳设计。通过考虑将每个楼层布局的质心和刚度中心之间的偏心率的最小化作为优化目标以产生扭转平衡的结构来实现该目标。该问题被认为是组合的拓扑和大小优化问题。每个楼层布局的结构的柱的位置和大小以及剪力墙构成了设计变量。除了抗震和钢筋混凝土结构设计规范施加的约束外，还考虑了建筑约束。测试示例表明，通过使每个楼层布局的重心和刚度中心之间的偏心率最小化，可以降低建筑物的结构成本。为了解决这类结构优化问题，实施了进化优化算法，特别是基于进化策略的特殊定制算法。

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