Ali Imanpour

Seismic Stability of Steel Wide Flange Columns in Concentrically Braced Frames: Response and Design Recommendations

Omid Moammer, Ali Imanpour, Yasaman Balazadeh-Minouei, Robert Tremblay

Abstract This paper evaluates the seismic stability response of wide flange steel concentrically braced frame (CBF) columns and proposes drift-based stability design recommendations for such columns under seismic loading. Four full-scale tests were conducted on seismically compact W 250 × 101 under …

ca, us (code pays fourni par la source)

Constraint-dependent CTOD resistance and triaxiality-based damage initiation relationships of API X52 pipeline steel using XFEM analysis of SENT, SENB, and CT specimens

Mohammad Kheirkhah Gildeh, Amirhossein Iranmehr, Ali Imanpour, Nader Yoosef-Ghodsi et autres

Direct comparisons of CTOD resistance among single-edge notched tension (SENT), single-edge notched bending (SENB), and compact tension (CT) specimens are often complicated by differences in material, specimen dimensions, testing procedures, and crack growth measurement methods. As a result, the separate effects of …

ca (code pays fourni par la source)

Seismic Response of Steel Concentrically Braced Frames of Conventional Construction Category

MEHRNAZ MOHAMMADESMAEILI, Ali Imanpour

Abstract Conventional Construction lateral load‐resisting systems are commonly used in the construction of single and multi‐storey steel structures in Canada. The 2024 edition of the Canadian steel design and construction standard introduced explicit seismic design requirements for various steel lateral load‐resisting systems …

ca (code pays fourni par la source)

A Design Aid for Steel Concentrically Braced Frame Connections

Hana Bashady, Ali Imanpour

Abstract This paper presents a computational design aid developed to rapidly optimize steel concentrically braced frame gusset plate connection designs by balancing structural requirements, seismic considerations, and constructability. The tool automates the connection design process using finite element analysis and built‐in logic …

ca (code pays fourni par la source)

Seismic demand on CBF columns designed according to European and Canadian standards

Massimino Gnazzo, Bardia Mahmoudi, Mario D’Aniello, Ali Imanpour et autres

Abstract This paper presents the seismic response evaluation of inverted‐V steel concentrically braced frames (CBFs) designed according to 2026 Eurocode 8 and 2024 CSA S16. A five‐storey inverted‐V CBF is first designed in accordance with the provisions of these two standards. Planar …

it, ca (code pays fourni par la source)

Seismic Performance of Buckling-Restrained Braces Subjected to Subduction Interface Earthquake Demands

Gabriel Capettini, Ali Imanpour, Moad Bani, Brandt W. Saxey

Abstract Five full-scale buckling-restrained brace (BRB) specimens, part of the second story of a 5-story steel buckling-restrained braced frame (BRBF), were tested experimentally to investigate their seismic response under demands imposed by long-distance subduction interface earthquakes anticipated in the Pacific Northwest. Two …

ca, fr (code pays fourni par la source)

Full Scale Testing of the Application of Geobuffer to Reduce Risk of Pipeline Failure at Fault Crossings

Javad Mirzaei, Ali Fathi, Ali Imanpour, Lijun Deng et autres

Geobuffer is an orthotropic back-fill (OBF) system positioned adjacent to the pipelines to distribute geohazard-induced ground displacements. OBF modifies the pipe's boundary conditions to enable more effective distribution of imposed displacements along the pipe, preventing local concentration of stress and strain. The …

ca, id (code pays fourni par la source)

Seismic design and response of inverted-V CBFs compliant with European and Canadian Standards

Massimino Gnazzo, Bardia Mahmoudi, Mario D’Aniello, Ali Imanpour et autres

This paper describes the main findings of a research activity devoted to investigating the influence of the design rules provided in the second generation of Eurocode 8 (EN 1998–1–1, EN 1998–1–2) and Canadian steel design standard (CSA S16) on the seismic performance …

it, ca (code pays fourni par la source)

XFEM Model for Characterizing Fracture Toughness of X52 Pipe Steels

Amr Mohamadien, Saher Attia, Ali Imanpour, Nader Yoosef-Ghodsi et autres

Abstract The extended finite element method (XFEM) has recently emerged as a highly effective tool for analyzing crack propagation in complex structures, but its use in pipeline fracture studies, particularly with cohesive zone models (CZMs), is still developing. Current XFEM fracture criteria …

ca, Égypte (code pays fourni par la source)

Fracture Toughness Characterizations of Single Edge Notch (SENB) Testing Using DIC System

Amr Mohamadien, Ali Imanpour, Sylvester Agbo, Nader Yoosef-Ghodsi et autres

The fracture toughness resistance curve (e.g., J-R curve and crack tip opening displacement (CTOD) or δ-R curve) is important in facilitating strain-based design and integrity assessment of oil and gas pipelines. This paper aims to present laboratory experimental data to characterize fracture …

ca (code pays fourni par la source)

Constraint-Dependent CTOD Resistance and Triaxiality-Based DamageModeling of API X52 Pipeline Steel Using XFEM Analysis of SENT, SENB,and CT Specimens

Mohammad Kheirkhah Gilde, Amirhossein Iranmehr, Ali Imanpour, Nader Yoosef-Ghodsi et autres

ca (code pays fourni par la source)

Multi-Element Hybrid Simulation Framework with Online Model Updating for Seismic Analysis of Multi-Storey Steel Braced Frames

Anahita Sadat Hosseini, Ali Imanpour

ca (code pays fourni par la source)