Statistics for Spatial Data.

Theory of fuzzy integrals and its applications

Probability, Reliability and Statistical Methods in Engineering Design

Emerging artificial intelligence methods in structural engineering

Structural health monitoring (SHM) techniques have been widely used in long-span bridges. However, due to limitations of computational ability and data analysis methods, the knowledge in ma...

Review of Bridge Structural Health Monitoring Aided by Big Data and Artificial Intelligence: From Condition Assessment to Damage Detection

A finite–discrete element framework for the 3D modeling of geogrid–soil interaction under pullout loading conditions

The current design and construction trends toward sustainable development have led to increased attention on designing high performance building structures, especially emphasizing reductions in energy consumption and CO2 emissions. Facades have the potential to drastically affect building energy performance and the comfort level of occupants; therefore, more attention and effort needs to be given to their design than at present. However, the involvement of various interdisciplinary professionals and the need for satisfying different design criteria makes the design process considerably complicated. This complexity is related to the required integration and provision for balance between all necessary functions of a facade system, which can be conflicting with each other. Consequently, most designers still tend to use conventional design methods that lack consideration of all required criteria. Multi-Criteria Decision Making (MCDM) analysis is a useful tool to assist designers with this integration, by generating the best solutions for achieving conflicting and multiple objectives. MCDM methods have been extensively used in management and optimization fields; however, their application to building technology, especially in facade design, is relatively recent. Currently there are many MCDM methods available, each with related benefits and drawbacks. Nevertheless, not all MCDM methods are appropriate for providing solutions to the facade design problem. This paper reviews and compares the most common MCDM methods for facade design. Accordingly, the most efficient methods for sustainable facade design are introduced and used in a decision-making process to examine their efficiency in facade design.

Multi-criteria decision-making methods for preliminary design of sustainable facades

Wavelet-based analysis of mode shapes for statistical detection and localization of damage in beams using likelihood ratio test

Experimental and numerical studies have been conducted to investigate the earth pressure distribution on cylindrical shafts in soft ground. A small-scale laboratory setup that involves a mechanically adjustable lining installed in granular material under an axisymmetric condition is first described. The earth pressure acting on the shaft and the surface displacements are measured for different induced wall movements. Numerical modeling is then performed using the discrete element method to allow for the simulation of a large soil displacement and particle rearrangement near the shaft wall. The experimental and numerical results are summarized and compared against previously published theoretical solutions. The shaft-soil interaction is discussed, and conclusions regarding soil failure and the earth pressure distributions in both the radial and circumferential directions are presented.

Discrete Element and Experimental Investigations of the Earth Pressure Distribution on Cylindrical Shafts

Three-dimensional analysis of soil-structure interaction problems considering the response at the particle scale level is a challenging numerical modeling problem. An efficient framework that takes advantage of both the finite- and discrete-element approaches to investigate soil-geogrid interactions is described in this paper. The method uses finite elements to model the structural components and discrete particles to model the surrounding soil to reflect the discontinuous nature of the granular material. The coupled framework is used in this study to investigate two geotechnical engineering problems, namely, strip footing over geogrid-reinforced sand and geogrid-reinforced fill over a strong formation containing void. The numerical model is first validated using experimental data and then used to provide new insights into the nature of the three-dimensional interaction between the soil and the geogrid layer.

Luc Chouinard

Papers

A finite–discrete element framework for the 3D modeling of geogrid–soil interaction under pullout loading conditions

Multi-criteria decision-making methods for preliminary design of sustainable facades

Wavelet-based analysis of mode shapes for statistical detection and localization of damage in beams using likelihood ratio test

Discrete Element and Experimental Investigations of the Earth Pressure Distribution on Cylindrical Shafts

Three-Dimensional Analysis of Geogrid-Reinforced Soil Using a Finite-Discrete Element Framework