Developing a comprehensive framework and tool for composite section analysis including long-term effects | |
| Author | Patcharaphon Nimmanwattana |
| Call Number | AIT Thesis no.ST-24-06 |
| Subject(s) | Composite materials Composite construction Reinforced concrete |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering in Structural Engineering |
| Publisher | Asian Institute of Technology |
| Abstract | This study presents the extended stress equation for composite sections for axial flexural analysis and develops a framework and tools using a variety of materials in the load and time domains. The cross-section has been discretized in the modeling process using the layer-by-layer method, with each small layer having its own stress and strain properties. The objective of this method is to reduce the computational expense associated with numerical simulations of material stresses.Numerous time-dependent and time-independent effects, such as shrinkage creep, aging of concrete, tension stiffening, and relaxation of prestressing tendons, are considered in this analysis section. The developed framework shows that proposed algorithm can well forecast the long-term behavior of prestressed concrete beams. This was implemented using C# language.The results contained within this framework include the moment-curvature response, and the deflection at mid-span of the prestressed concrete beam is calculated in the member response. To verify the accuracy, these results were compared with findings from related studies in the literature and with measured data. |
| Year | 2024 |
| Type | Thesis |
| School | School of Engineering and Technology |
| Department | Department of Civil and Infrastucture Engineering (DCIE) |
| Academic Program/FoS | Structural Engineering (STE) /Former Name = Structural Engineering and Construction (ST) |
| Chairperson(s) | Krishna, Chaitanya;Anwar, Naveed (Co-chairperson) |
| Examination Committee(s) | Thanakorn Pheeraphan;Pennung Warnitchai |
| Scholarship Donor(s) | Royal Thai Government Fellowship |
| Degree | Thesis (M. Eng.) - Asian Institute of Technology, 2024 |