.png){kind=icon}
.png){kind=icon}
Return
Seismic Bearing Capacity of Strip Footing on Hoek–Brown Rock Using Modified Pseudo-dynamic Analysis
.png){kind=icon}
PRE
AI
P
J
DOI：10.1007/s00603-026-05884-3.png)
.png){kind=icon}
Original request for help.png){kind=icon}
Share.png){kind=icon}
Save
Abstract
En 中文
This study evaluates the ultimate bearing capacity of a strip footing resting on a Hoek–Brown rock mass subjected to seismic loading. A lower-bound limit-analysis framework is employed, integrating finite-element modeling, power cone and second-order cone programming, and a modified pseudo-dynamic approach. The bearing capacity is presented in terms of a non-dimensional capacity factor and assessed over a wide range of parameters, including the Geological Strength Index (GSI), Hoek–Brown parameter mi, damage factor Dm, horizontal and vertical seismic acceleration coefficients (kh and kv), normalized frequency parameter of an earthquake (ωHr/vt), and damping ratio (ξ). The results reveal a significant impact of seismic forces on the bearing capacity. Furthermore, the influence of load inclination and eccentricity in seismic conditions is analyzed. The study also investigates the stress state proximity to plastic failure for a better understanding of the failure mechanisms of strip footing on the surface of the Hoek–Brown rock mass subjected to seismic loading. This work lays the groundwork for future studies aimed at improving the seismic safety of geotechnical structures founded on rock masses.
Keywords:
Seismic bearing capacity
Modified pseudo-dynamic analysis
Lower-bound limit analysis
Journal
IF:
6.6
Papers:
6.0K
Citations:
3.0W
Organization
Cited Papers