OUTLINE OF SEISMIC RETROFITTING OF RAILWAY RC STRUCTURES

Seismic Retrofitting RC Structures with Precast Prestressed Concrete Braces- ABAQUS FEA Modeling

Precast prestreesed concrete braces are a new method for seismic strength of Concrete Structures which has the following benefits: a) no wet concrete work in construction site b) No bolt or anchorage to the existing frame c) easy to apply d) short construction period e) low construction cost, to evaluate seismic performance of strengthened structure a model consist of existing frame and concret...

Seismic Retrofitting of Steel and Composite Building Structures

Seismic Retrofitting of Existing Shear Walls by Means of High Performance Rc Jacket

A new technique for the strengthening of existing R/C shear walls based on the application of very thin high performance jackets is presented in this paper. The strengthening jacket is made of high performance concrete and high strength steel mesh. The experimental study on a 1:3 scale R/C wall, proportioned to resist the vertical loads only, and reinforced by means of a 15 mm thick high perfor...

Seismic Performance Reliability of RC Structures: Application of Response Surface Method and Systemic Approach

The present study presents an algorithm that models uncertainties at the structural component level to estimate the performance reliability of RC structures. The method calculates the performance reliability using a systemic approach and incorporates the improved response surface method based on sampling blocks using the first-order reliability method and conditional reliability indices. The re...

Multi-criteria Decision Making for Seismic Retrofitting of an Underdesigned Rc Structure

Seismic retrofitting of under-designed structures is a consolidated approach to risk management. Several options are available for the achievement of the vulnerability reduction goals, each of those having peculiar performances in respect of different technical and non-structural criteria. Selection of the best solution is a non-trivial task, because criteria may conflict each other. MultiCrite...