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@article{207795,
        author = {Ammar Yasin Bamne and S. R. Takkalaki},
        title = {ECONOMICAL ANALYSIS OF INTEGRAL PORTAL FRAMES BRIDGES BY CHANGING VARIOUS ASPECT RATIO},
        journal = {International Journal of Innovative Research in Technology},
        year = {2026},
        volume = {13},
        number = {3},
        pages = {2616-2620},
        issn = {2349-6002},
        url = {https://ijirt.org/article?manuscript=207795},
        abstract = {Integral portal frame bridges have become an effective alternative to conventional bridges because they eliminate expansion joints and bearings, thereby reducing maintenance costs and improving durability. This study investigates the influence of varying pier heights on the structural behaviour and economy of a four-bay semi-integral portal frame bridge. Numerical modelling was carried out using STAAD.Pro Connect Edition for deck spans of 10 m and 12 m with pier heights varying from 5 m to 9 m. The bridge was analysed under IRC load combinations including dead load, superimposed dead load, wearing coat, temperature effects, creep, shrinkage, seismic loads, water current force, braking force, and IRC 70R/Class AA live loads. The results indicate that the temperature-dominant load combination produces the highest bending moments. Increasing pier height significantly reduces bending moments in both the piers and deck slab, leading to improved structural efficiency and economy. The study demonstrates that selecting an optimum aspect ratio can reduce structural demand, enhance durability, and minimize construction and maintenance costs.},
        keywords = {},
        month = {August},
        }