Analysis for Position of Lower Lead in Steel Reinforced Concrete Building
| Autor: | Chien-ChouWeng, 翁健洲 |
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| Rok vydání: | 2018 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 106 This thesis aims to explore the installation of lightning guidelines for super high-rise buildings. The COMSOL Multiphysics, which is a multiphysics coupled finite element software, is applied for simulation analysis. The simulation applies the Heilder type lightning strike surge current to analyze the lightning strike of the lightning rod. The lower lead sets the position on the steel reinforced concrete inner steel structure, the main reinforcement and the stirrup. The simulation process records that the guide line is placed on the column stirrup. The potential difference between the inside and the outside, the potential distribution of the lower lead when the H-shaped steel is grounded, the magnetic flux density distribution inside the column and the induced current density of the lower stirrup are analyzed, and the relationship between various characteristics and data is analyzed. When the interior material of the column is made of concrete, the H-shaped steel bone is well grounded, and the guide wire under the lightning rod is placed inside the stirrup. The potential difference of the lower lead is small, which can effectively release the lightning current energy and minimize the damage of electrical equipment. The H-shaped steel grounding as an example, the optimal position of the lower lead is 3 cm inside the column. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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