Results 51 to 60 of about 21,312 (304)

CALCULATION OF SEISMICALLY LOADED EARTH RETAINING STRUCTURES

open access: yesActa Polytechnica CTU Proceedings, 2022
Eurocode 1998-5 for the design of earth retaining structures in seismic conditions describes calculations using the Mononobe-Okabe method. This simplified quasi-static procedure is to some extent very conservative. The article describes the limits of this method and brings out the comparison using theoretical numerical examples with other approaches ...
Jan Pruška, Veronika Pavelcová
openaire   +3 more sources

SEISMIC ISOLATION AND ENERGY DISSIPATION: THEORETICAL BASIS AND APPLICATIONS [PDF]

open access: yes, 2008
The protection of the building from seismic events is a fundamental phase in the structures design should be introduced to avoid the loss of lives especially when it occurs in developing countries.
Marsico, Maria Rosaria
core  

Comparative structural response of two steel bridges constructed 100 years apart

open access: yes, 2011
This paper presents a comparative numerical analysis of the structural behaviour and seismic performance of two existing steel bridges, the Infiernillo II Bridge and the Pinhao Bridge, one located in Mexico and the other in Portugal. The two bridges have
Aníbal Costa   +17 more
core   +1 more source

An optimizing microseismic method for rock burst early warning based on mining production process

open access: yesDeep Underground Science and Engineering, EarlyView.
A classification early warning method of rock burst based on hourly microseismic data is proposed, which can be combined with the on‐site production process to provide more timely warning. Abstract Microseismic (MS) events have been reported in nearly every coal mining country, which could well lead to rock burst in underground coal mines.
Zepeng Han   +6 more
wiley   +1 more source

Confined length of reinforced concrete columns at various axial load levels

open access: yesGrađevinar, 2018
The seismic performance of reinforced concrete columns subjected to various levels of axial load is assessed in the paper. An equation relating the confined region to the applied axial load is proposed and compared to the Algerian seismic code RPA99 ...
Mounir Ait Belkacem   +3 more
doaj   +2 more sources

Stability Analysis Approach to Block Toppling in Rock Slopes Under Seismic Loads

open access: yesApplied Sciences
Rock slope toppling failure is a typical type of slope disaster. It is crucial for engineering practice to quickly and accurately evaluate the toppling stability of rock slopes under seismic loads.
Kai Fan, Caihua Liu, Chaoyi Sun
doaj   +1 more source

Seismic Resilience Evolution of Shield Tunnel with Structure Degradation

open access: yesApplied Sciences, 2023
The structural performance of shield tunnel structures is highly susceptible to degradation under complex environmental loads, with the most common manifestation being bolt preload loss.
Hongzhi Cui   +7 more
doaj   +1 more source

Simplified seismic analysis of a class of regular steel bridges

open access: yes, 2002
AASHTO's (American Association State Highway and Transportation Officials) simplified method of analysis for multiple-span regular bridges requires modeling and analysis of the structures and it is not less time-consuming than performing a computer-aided
Dicleli, Murat
core   +1 more source

Semi‐analytical solution for the stability of deep vertical shaft considering time‐dependent rock‐structure interaction

open access: yesDeep Underground Science and Engineering, EarlyView.
A novel cavity contraction solution and multilayer shaft wall model were developed to analyze deep shaft stability, considering rock viscosity, support structures, and water pressure, with successful validation through a Hulusu Coal Mine case study.
Bin Chen   +5 more
wiley   +1 more source

Measuring and Modeling Viscoelastic Relaxation of the Lithosphere with Application to the Northern Volcanic Zone, Iceland [PDF]

open access: yes, 2010
Viscoelastic relaxation of the stress perturbation caused by an earthquake or diking event can produce measurable ground deformation over 100 km away from the source. We consider the role of viscoelastic relaxation in two different contexts.
DiCaprio, Christopher John
core   +1 more source

Home - About - Disclaimer - Privacy