Codes in Structural Engineering

Revista IBRACON de Estruturas e Materiais, 2015

IRJET, 2020

This research paper attempts to exhibit a comparative study for the design of reinforced concrete structures. In this research, two International structural codes have been used to analyze the different processes of strength designs., which are, IS456:2000 and Euro Code2:1992. This study elaborates the criteria of codes and exhibits the design of structures. However, the principles in these codes are the same but are different in its details. This project intends to relate IS 456-2007 and Eurocode II. The broad design standards (L/D ratio, stress-strain block parameters, load combinations and the formula compared along with the area of steel) for vital structural members to get an overview of how the codes illustrate in correspondence to each other. Emphasis will be put to the results in a tabular and graphical description for greater clarity and parallel interpretation.

Revista IBRACON de Estruturas e Materiais, 2015

The safety evaluation of an existing concrete structure differs from the design of new structures. The partial safety factors for actions and resistances adopted in the design phase consider uncertainties and inaccuracies related to the building processes of structures, variability of materials strength and numerical approximations of the calculation and design processes. However, when analyzing a finished structure, a large number of unknown factors during the design stage are already defined and can be measured, which justifies a change in the increasing factors of the actions or reduction factors of resistances. Therefore, it is understood that safety assessment in existing structures is more complex than introducing security when designing a new structure, because it requires inspection, testing, analysis and careful diagnose. Strong knowledge and security concepts in structural engineering are needed, as well as knowledge about the materials of construction employed, in order t...

Hormigón y Acero

This article highlights the most relevant aspects of the new generation of Eurocodes for the assessment of existing structures, and in particular those governing concrete structures. In this respect, Eurocode 0 will include a new section (prEN 1990-2. Basis of assessment and retrofitting of existing structures: general rules and actions) covering the approach and analysis that must be included in this type of assessment, while Eurocode 2 (prEN1992-1-1:2021 Design of concrete structures) includes Annex I: Assessment of existing structures, which is informative and covers particular aspects of the assessment of concrete structures.

IABSE Symposium, Lisbon 2005, 2005

Engineering Structures, 1997

IABSE Symposium, Venice 2010: Large Structures and Infrastructures for Environmentally Constrained and Urbanised Areas, 2010

Theoretical aspects on the risk assessment of the reinforced concrete structures are presented. The earthquake capacity ratio is analysed for reinforced concrete framed structure. More attention is paid to the seismic shear force capacity and some new procedures are introduced to estimate the earthquake capacity of existing structures.The present seismic design and assessment of existing structures are done in Romania by using new codes in agreement with the Eurocodes. The impact of these new design codes in comparison with the previous codes is presented for reinforced concrete structures.The assessment and rehabilitation were performed on a office building RC framed structure built in 1971. The assessment of in-situ conditions showed up the main problems of the RC structure which consisted of inadequate concrete strength at some columns. The strengthening solution consisted in transversal confinement with composite fibre reinforced polymers of the columns.