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| Shape optimization of shear steel plate damper with diamond hole |
| Received:April 19, 2017 Revised:July 05, 2017 |
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| DOI：10.7511/jslx20170419001 |
| KeyWord:ABAQUS PYTHON diamond-shaped hole metal damper shape optimization |
| Author | Institution |
| 陈聪 |
浙江科技学院 中德工程师学院, 杭州 ;同济大学 土木工程防灾国家重点实验室, 上海 |
| 吕西林 |
同济大学 土木工程防灾国家重点实验室, 上海 |
| 陈云 |
海南大学 土木建筑工程学院, 海口 |
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| Abstract: |
| The stress in the rectangle web of the steel plate damper under shear forces is not uniform.Some parts of the web enters plastic deformation and become damaged,thus wasting the material and even resulting in poor ductility.To make a full use of the material,a diamond-shaped hole can be made to the rectangle steel web plate could have diamond hole or an X-shaped steel web plate can be made.However,the optimal shape of the diamond-shaped hole has not been researched and the shape optimization method was seldom mentioned.To obtain a better hysteretic performance,the two types of the steel plate dampers are shape-optimized in this paper.The finite element model was verified by the test results firstly,and then the shape was optimized through the optimization module coded by the authors,using scripts developed in PYTHON language based on ABAQUS software.The results of plastic deformation distribution and hysteresis results according to the shapes before and after optimization were compared.Maximum plastic stain were reduced after optimization,which indicates that the stress in the shear steel plate became more uniform.The hysteresis curve of the script optimization method was fuller,and the energy dissipation capacity was better.This paper provides a reference for the design and shape optimization of the shear steel plate damper with a diamond-shaped hole. |
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