| Title |
Rational Sectional Force and Design Improvement of Abutment Wing-Wall |
| Keywords |
Abutment;wing wall;sectional force;FE analysis;plate analysis;representative section;교대;날개벽;단면력;유한요소해석;판해석;대표단면 |
| Abstract |
Current Bridge Specification for Highway Bridges adopts a simplified method to determine sectional forces of abutment wing by dividing its area into four sections. This simplified method was developed in Japan when numerical analysis was not mature and computer resources were expensive. This simplified method has been with us without modification. This study evaluates the problem of current design practice to improve the design guideline for abutment wing. In this study, a finite element model of abutment wing based on shell elements was developed to obtain accurate sectional force. In addition, foreign design specifications regarding abutment wing were thoroughly examined. It has been observed that sectional forces obtained from the simplified method produce inaccurate results under various geometric shapes. Thus, it is recommended that two dimensional plate analyses should be adopted for future design of abutment wing wall. |