Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Effect of Static Load Inclination on Settlement of Strip Footing Under Cyclic Excitations
One of the key problems in foundation engineering is to observe the settlement of foundation. This problem becomes more complex in the context of cyclic stress reversal. The behavior of shallow foundations was reported experimentally and statistically considering the load inclination, by a number of researchers. However, the studies were limited to only static case. In many cases, the direction of load application of static load may fluctuate while mechanically applied cyclic load remains constant. In order to simulate such a system, in this study, a modified approach has been followed to observe the settlement of foundation under combined influence of pulse load and inclined static load. The footing-soil system is modeled with the help of Beam on Nonlinear Winkler Foundation Model (BNWF) analysis using OpenSEES. The soil is taken as dense sand with relative density (Dr) = 69%. Initial results from the model are validated against existing analytical and numerical solutions. Then the settlement pattern under long-term cyclic load is analyzed, and the influence of increase in load inclination is discussed. It is observed that the total settlement is controlled by the static and cyclic load intensity which in turn are influenced by the angle of static load inclination (α).
Effect of Static Load Inclination on Settlement of Strip Footing Under Cyclic Excitations
One of the key problems in foundation engineering is to observe the settlement of foundation. This problem becomes more complex in the context of cyclic stress reversal. The behavior of shallow foundations was reported experimentally and statistically considering the load inclination, by a number of researchers. However, the studies were limited to only static case. In many cases, the direction of load application of static load may fluctuate while mechanically applied cyclic load remains constant. In order to simulate such a system, in this study, a modified approach has been followed to observe the settlement of foundation under combined influence of pulse load and inclined static load. The footing-soil system is modeled with the help of Beam on Nonlinear Winkler Foundation Model (BNWF) analysis using OpenSEES. The soil is taken as dense sand with relative density (Dr) = 69%. Initial results from the model are validated against existing analytical and numerical solutions. Then the settlement pattern under long-term cyclic load is analyzed, and the influence of increase in load inclination is discussed. It is observed that the total settlement is controlled by the static and cyclic load intensity which in turn are influenced by the angle of static load inclination (α).
Effect of Static Load Inclination on Settlement of Strip Footing Under Cyclic Excitations
Lecture Notes in Civil Engineering
Sitharam, T. G. (Herausgeber:in) / Kolathayar, Sreevalsa (Herausgeber:in) / Jakka, Ravi (Herausgeber:in) / Sasmal, Suvendu Kumar (Autor:in) / Behera, Rabi Narayan (Autor:in)
04.01.2022
10 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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