Abstract Gypseous soil is located in dry and semi-arid areas unsaturated conditions this type of becomes a serious issue for engineering geotechnical when it wet. the properties structure change, exposed to soaking leaching, because gypsum dissolved water causing rupture bonds that hold particles together reduction suction power holds them together. Large settlements potential collapse will hap...

This paper investigates the seismic performance of Intermediate Moment-Resisting Steel Frame structures considering effects height and soil-structure interaction. For this purpose, three 3D 3, 6 9-story were designed using CSI ETABS software in accordance with ASCE7-16. Then 2D frames simulated by OpenSEES to account for nonlinearity material, plastic hinge elements used. The analyzed IDA metho...

The presence of gypsum in soil has a high effect on the mechanical and physical properties soil. This depends fundamentally type quantity existent present study attempts to improve gypseous using new pozzolanic material discovered as from attapulgite clay. It is called “High Reactivity Attapulgite” HRA. objective this investigate ability be moderate stabilizer used for treating was obtained one...

Black spruce (Picea mariana) is the most abundant tree species in the boreal biome, but little is known about how climate warming may change recruitment in peatlands, especially those affected by permafrost thaw. We used results from a seven-year study in northern Manitoba, Canada, to address the following questions: (1) What is the relative importance of early life history transitions on P. ma...

Progressive collapse is defined as the spread of an initial damage from one member to another, leading to extensive partial or total collapse of the structure. In this research, the potential of progressive collapse due to a sudden removal of vertical load-bearing elements in reinforced concrete buildings structures with different floor plans such as geometrical regular and irregular floor plan...

Estimation of collapse performance is primarily conducted through Collapse Fragility Curves (CFC’s). The EDP-based approach is the main scheme for attaining such curves and employs IDA. Obtaining CFC’s from IDA results is tremendously time consuming and computationally demanding. Introduction of more efficient methods of seismic analysis, can potentially improve this issue. The Endurance Time (...

in the first impounding of rockfill dams, additional settlements occur in upstream side in saturated rockfills due to collapse phenomenon even high rainy seasons can cause additional deformation in the dumped rockfills. unfortunately these displacements are not taken into account in the conventional numerical models which are currently used to predict embankment dam behavior during impounding. ...

Simulations de grandes déformations et post-rupture des murs de soutènement segmentaires utilisant la méthode des mailles-libres (SPH) ABSTRACT: Numerical methods are extremely useful in gaining insights into the behaviour of reinforced soil retaining walls. However, traditional numerical approaches such as limit equilibrium or finite element methods are unable to simulate large deformation and...