The negative skin friction (NSF) of pile foundations is one the most important factors in triggering building subsidence. To study mechanism and development NSF over time, four methods have been used: theoretical calculations, field tests, model numerical modeling. address difficulty sampling prototype soft soils this uses a dynamic triaxial instrument to select similar material ratio that can ...

Although there is enough knowledge indicating on the influence of frequency content of input motion on the deformation demand of structures, state-of-the-practice seismic studies use the intensity measures such as peak ground acceleration (PGA) which are not frequency dependent. The ratio of strong ground motions can be used in seismic hazard studies as the representative of frequency content o...

The current study aims to investigate damage assessment of the RC frames with brick masonry infill (BMI). effects near-source ground motions (GMs) are considerably predominant in seismic response structure as related far-source motion due their forward directivity plus long period. is characterized by enormous everlasting translation, strong peak acceleration (PGA), and a very low-frequency pul...

Abstract Difference methods have been routinely used to compute velocity and acceleration from precise positioning with global navigation satellite systems (GNSS). A low sampling rate (say a not greater than 1 Hz, for example) has always implicitly assumed applicability of the methods, because random measurement errors are significantly amplified, either proportional in case or square-proportio...

This article develops ground-motion models (GMMs) by using a support vector regression (SVR) for western part of China. These SVR GMMs constitute mathematical equations that can predict the peak ground acceleration (PGA) and response spectral at different periods. Given earthquake magnitude (Mw), hypocentral distance (Rhypo) shear-wave velocity averaged over top 30 m soil (Vs30), predicted valu...

Hillslope instability has been thought to be one of the most important factors for landslide susceptibility. In this study, we apply geomorphic analysis using multi-temporal DEM data and shake intensity analysis to evaluate the topographic characteristics of the landslide areas. There are many geomorphologic analysis methods such as roughness, slope aspect, which are also as useful as slope ana...

Soil liquefaction is a phenomenon that can occur when soil loses strength and behaves like liquid during an earthquake. A site investigation essential for determining site’s susceptibility to liquefaction, these investigations frequently generate project-specific geotechnical reports. However, many of reports are stored unused after construction projects completed. This study suggests consolida...

In this paper a simple tool for seismic design of steel structures for a selected ductility level is presented. For this purpose, a consistent set of earthquakes is selected and sorted based on the maximum acceleration of ground surface. The selected records are applied as the base motion to a single-degree-of-freedom system with strain hardening and the maximum response acceleration is determi...

Bengkulu City is an area in Indonesia that has a high seismic intensity. This very vulnerable to undergo earthquakes. Therefore, there necessity study the hazard assessment this area. paper presents vulnerability based on ground response analysis combined with probabilistic assessment. The soil profiles around are investigated using geophysical survey by microtremor and analysis. motion of soft...