TKD - Department of Civil Engineering and Energy Technology

Applying BIM and 3D laser scanning technology on virtual pre-assembly for complex steel structure in construction

Ying, Chunli; Zhou, Yin; Han, Daguang; Qin, Guocheng; Hu, Kaixin; Guo, Jieming; Guo, Tong (IOP Publishing, 2019)

Steel structure needs to be assembled before the components are transported to the site to ensure the installation of the steel structure successfully. The traditional assembly is a physical assembly method, which needs ...

Effect of Shrinkage Reducing Admixture on Drying Shrinkage of Concrete with Different w/c Ratios

Kioumarsi, Mahdi; Azarhomayun, Fazel; Haji, Mohammad; Shekarchi, Mohammad (MDPI, 2020-12-15)

The reduction of the moisture content of concrete during the drying process reduces the concrete’s volume and causes it to shrink. In general, concrete shrinkage is a phenomenon that causes concrete volume to dwindle and ...

Thermal analysis of flat roof systems with regards to their thermal insulation and exterior surface emissivity coefficient

Choidis, Petros; Kontoleon, Karolos; Evgenidis-Karadimitriou, Panagiotis; Mazzeo, Domenico (IOP Publishing, 2020)

In this study, a numerical analysis of the thermal performance of a flat roof system is presented. The dynamic thermal behaviour of this system is assessed with regards to the effects produced by an insulation layer and ...

Pre-code RC bare frame: Seismic retrofit with alternative strategies

Zucconi, Maria; Marcello, Sabene; Kioumarsi, Mahdi; Ferracuti, Barbara (American Institute of Physics, 2020-11-25)

In the last fifty years, a significant number of earthquakes that caused great economic losses and casualties have been recorded. In particular, in the last ten years, many seismic events occurred, and their medium magnitude ...

Bond strength of RC elements with consideration of corrosion: An experimental survey

Benenato, Armando; Ferracuti, Barbara; Imperatore, Stefania; Kioumarsi, Mahdi (American Institute of Physics, 2020-11-25)

The researches on the bond behavior of corroded reinforcements are finalized to the assessment of the structural serviceability loss, providing appropriate tools for the evaluation of the structural integrity, i.e. relation ...

Effect of stiffeners on behavior of steel plate shear wall with rectangular openings

Bypour, Maryam; Kioumarsi, Mahdi; Zucconi, Maria (American Institute of Physics, 2020-11-25)

Steel Plate Shear Walls (SPSWs) with and without stiffeners, due to excellent seismic performance, are considered as a lateral load resisting system. Stiffeners have widely been used in SPSW to improve the buckling behavior ...

Optimum Design of RC Footings with Genetic Algorithms According to ACI 318-19

Ramirez, German Solorzano; Plevris, Vagelis (MDPI, 2020-06-11)

Engineers usually use trial-and-error approaches for dealing with design problems where they need to find the most economical design of a structural element in terms of its material cost while satisfying all the safety ...

Prediction of properties of FRP-confined concrete cylinders based on artificial neural networks

Ahmad, Afaq; Plevris, Vagelis; Khan, Q. (MDPI, 2020-09-14)

Recently, the use of fiber-reinforced polymers (FRP)-confinement has increased due to its various favorable effects on concrete structures, such as an increase in strength and ductility. Therefore, researchers have been ...

A comparative study of differential evolution variants in constrained structural optimization

Georgioudakis, Manolis; Plevris, Vagelis (Frontiers Media, 2020-07-09)

Differential evolution (DE) is a population-based metaheuristic search algorithm that optimizes a problem by iteratively improving a candidate solution based on an evolutionary process. Such algorithms make few or no ...

Editorial: Innovative approaches in computational structural engineering

George, Tsiatas; Plevris, Vagelis (Frontiers Media, 2020-04-08)

Inspection and Assessment of Corrosion in Pretensioned Concrete Bridge Girders Exposed to Coastal Climate

Osmolska, Magdalena Jadwiga; Hornbostel, Karla; Kanstad, Terje; Hendriks, Max; Markeset, Gro (MDPI, 2020-09-17)

he most common methods for detecting chloride-induced corrosion in concrete bridges are half-cell potential (HCP) mapping, electrical resistivity (ER) measurements, and chloride concentration testing, combined with visual ...

Experimental and numerical studies on thermal performance of an office cubicle having gypsum boards coated with PCM-enhanced spackling

Vik, Tor Arvid; Madessa, Habtamu Bayera; Chaudhuri, Arnab; Aamodt, Andreas; Phengphan, Chakkrit; Afriyie, Ebenezer Twumasi (SINTEF Academic Press, 2020)

PCM enhanced wallboards on internal surfaces of building spaces is an attractive solution for improvement of thermal performance in buildings. This work deals with using a novel spackling compound as a primer coating ...

POD-interpolation based prediction of indoor airflows

Kluftødegård, Mats; Chaudhuri, Arnab (SINTEF akademisk forlag, 2020)

This work reports a proper orthogonal decomposition (POD)-interpolation based prediction of indoor airows related to displacement ventilation. Steadystate computational uid dynamics (CFD) solution snapshots with varying ...

Shear capacity prediction of stiffened steel plate shear walls (SSPSW) with openings using response surface method

Bypour, Maryam; Kioumarsi, Mahdi; Yekrangnia, Mohammad (Elsevier, 2021)

In this study, nonlinear finite element (NLFE) analysis is conducted to determine the maximum shear capacity () of stiffened steel plate shear walls (SSPSW) with rectangular openings. Results of a wide range of parametric ...

Hygrothermal performance of log walls in a building of 18th century and prediction of climate change impact on biological deterioration

Choidis, Petros; Tsikaloudaki, Katerina; Kraniotis, Dimitrios (EDP Open, 2020-06-30)

Several studies underline the dramatic changes that are expected to take place in nature and environment due to climate change. The latter is also expected to affect the built environment. Particular emphasis is currently ...