This paper presents a study that forms part of an ongoing project on the seismic retrofit of reinforced concrete (RC) structures with fibre-reinforced polymer (FRP). In this study, a stress-strain model for FRP-confined concrete subjected to cyclic loading was implemented into OpenSees to support the performance-based design of FRP jackets for the seismic retrofit of RC columns/structures. Init...

Seismic vulnerability assessment is crucial for evaluating the resilience of structures. OpenSees, an open-access and versatile tool, plays a pivotal role in accurately simulating complex behavior structures subjected to seismic loads. However, lacking built-in graphical user interface (GUI) one limitations OpenSees that can hinder usability accessibility. Moreover, users must rely on command-l...

The work in this report is motivated by the performance-based engineering approach advocated by PEER. A comprehensive, object-oriented software framework for finite element sensitivity and reliability analysis is developed. The work builds on the existing software OpenSees. An essential ingredient in finite element reliability analysis is accurate, consistent and efficient computation of respon...

The finite-element software framework OpenSees is extended with parameter updating and response sensitivity capabilities to support client applications such as reliability, optimization, and system identification. Using software design patterns, member properties, applied loadings, and nodal coordinates can be identified and repeatedly updated in order to create customized finite-element model ...

Composite pressure vessels have the characteristics of light weight, corrosion resistance, good sealing, and high reliability, been widely used in military civilian applications. With widespread use composite today, determining how to conduct scientific research correct analysis becomes very important. continuous development computer technology improvement finite element algorithms, numerical c...