A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Recent Advancements in Static and Seismic Stability Analysis of Caissons
Caissons are massive rigid foundation system which are used to support structures subjected to large lateral loads and moments. Numerical analyses have been performed in the present study to obtain generalized 3D interaction diagram relating vertical load, lateral load and moment at failure. Resistive stresses and moments acting on various caisson face have been determined and resistive moment shared between sides and base of caisson have been studied. An empirical correlation has been developed for obtaining the percentage of resisting moment shared by sides of caisson. The numerical study revealed the geometry of 3D failure wedge which was then adopted in the theoretical studies to obtain seismic passive earth pressure coefficients due to cohesion, surcharge and unit weight components. Limit equilibrium method of analysis has been adopted in conjugation with modified pseudo-dynamic approach for the theoretical study to obtain the seismic passive earth pressure coefficients for dry as well as submerged strata. Formulation for variation of acceleration along depth in different layers has also been reported to take varying seismic inertial force into account. The results of the various studies have been validated with previous literature and found to compare well with the existing studies.
Recent Advancements in Static and Seismic Stability Analysis of Caissons
Caissons are massive rigid foundation system which are used to support structures subjected to large lateral loads and moments. Numerical analyses have been performed in the present study to obtain generalized 3D interaction diagram relating vertical load, lateral load and moment at failure. Resistive stresses and moments acting on various caisson face have been determined and resistive moment shared between sides and base of caisson have been studied. An empirical correlation has been developed for obtaining the percentage of resisting moment shared by sides of caisson. The numerical study revealed the geometry of 3D failure wedge which was then adopted in the theoretical studies to obtain seismic passive earth pressure coefficients due to cohesion, surcharge and unit weight components. Limit equilibrium method of analysis has been adopted in conjugation with modified pseudo-dynamic approach for the theoretical study to obtain the seismic passive earth pressure coefficients for dry as well as submerged strata. Formulation for variation of acceleration along depth in different layers has also been reported to take varying seismic inertial force into account. The results of the various studies have been validated with previous literature and found to compare well with the existing studies.
Recent Advancements in Static and Seismic Stability Analysis of Caissons
Indian Geotech J
Chatterjee, Kaustav (author) / Kumar, Mohit (author)
Indian Geotechnical Journal ; 54 ; 210-233
2024-02-01
24 pages
Article (Journal)
Electronic Resource
English
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