A finite element model of externally prestressed structures | |
| Author | Al-Qureshi, Umer Haroon |
| Call Number | AIT Thesis no. ST-99-8 |
| Subject(s) | Prestressed construction Finite element method Prestressed construction Finite element method |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering. |
| Publisher | Asian Institute of Technology |
| Abstract | External prestressing is a new technology recently introduced for use in highway bridges to meet the requirement of fast and economic construction, with minimum interference to the current traffic. Finite element modeling of different components of externally prestressed structures is performed. The main structures are modeled with previously developed non-linear truss, plane stress/strain and thin-walled six node elements. Cables are specially developed based on a non-linear truss element. The most important part of the externally prestressed structures, which make its behavior different from other types of prestressing, is the interfaces among tendons, deviators and different segments of main structures. These interfaces are modeled with various types of contact elements. Considering all the possible conditions of interfaces, some new elements are developed. Finally a number of numerical examples are tested by a sequential step by step loading. The results contain the validity and the effectiveness of the present model. |
| Year | 1999 |
| Type | Thesis |
| School | School of Engineering and Technology |
| Department | Department of Civil and Infrastucture Engineering (DCIE) |
| Academic Program/FoS | Construction Engineering and Infrastructure Management (CM) |
| Chairperson(s) | Worsak Kanok-Nukulchai.;Worsak Kanok-Nukulchai.; |
| Examination Committee(s) | Songkiat Matupayont;Gupta, S. P.;Pennung Warnitchai; |
| Scholarship Donor(s) | Government of Japan; |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 1999 |