HEALTH MONITORING AND DAMAGE ASSESSMENT BY PARAMETER ESTIMATION OF FRAMED STRUCTURES FROM STATIC RESPONSES
Published In: INTERNATIONAL CONFERENCE ON ADVANCES IN ENGINEERING AND TECHNOLOGY
Author(s): JAYDEEP CHOWDHURY , PRIYABRATA GUHA
Abstract: Structural damage assessment of framed structure utilizing a sensitivity based parameter identification method is presented in this paper. A subset of applied static forces and subset of measured strains are used to identify the elemental stiffness parameters of all or a portion of a finite element model of the structure. Here we developed a method for parameter estimation of linear elastic structures using static strain measurements, preserving structural connectivity and determines the changes in cross-sectional properties, including large changes or elemental failure for stable structures. To linearize the associated non linear problem a first order Taylor series expansion is used as an iterative scheme. The algorithm automatically adjusts the structural element stiffness parameters in order to improve the comparison between a measured and theoretical response in an optimal way. In this study we have artificially generated the required measured input. The identified cross-sectional
- Publication Date: 25-May-2014
- DOI: 10.15224/978-1-63248-028-6-03-55
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PARAMETRIC STUDY ON PILE WALL USED AS RETENTION SYSTEM FOR DEEP EXCAVATIONS
Published In: INTERNATIONAL CONFERENCE ON ADVANCES IN ENGINEERING AND TECHNOLOGY
Author(s): CHAVDA JITESH , SOLANKI C. H
Abstract: Inadequate space in urban area has set forth a challenging trend to go deeper into the ground, and increase the space required for providing public amenities, parking space and for housing utilities. Closely spaced structures in the vicinity of excavation, soft and compressible landfills, presence of underground utilities, and restriction of lateral ground movements have made the supporting systems a formidable task to execute [3]. Deep excavations are supported by systems like conventional retaining walls, sheet pile walls, braced walls, diaphragm walls and pile walls. In urban areas noise and vibration creating supporting systems are avoided and hence Pile wall can be used effectively. In this work, numerical modelling of Pile Wall using PLAXIS – 3D is conducted in order to carry out parametric studies, effect of stage wise excavation on ground and pile wall deformation.
- Publication Date: 25-May-2014
- DOI: 10.15224/978-1-63248-028-6-03-56
- Views: 0
- Downloads: 0