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DEVELOPMENT OF CUSTOM LOAD AND RESISTANCE FACTORS FOR DESIGN OF REINFORCED CONCRETE STRUCTURES

Oluşturulma Tarihi: 27-09-2021

Niteleme Bilgileri

Tür: Tez

Alt Tür: Yüksek Lisans Tezi

Yayınlanma Durumu: Yayınlanmış

Dosya Biçimi: PDF

Dil: İngilizce

Konu(lar): Mühendislik (Genel). İnşaat mühendisliği (General),

Yazar(lar): ELOSTA, IBRAHIM MAHMOUD IBRAHIM (Yazar),

Emeği Geçen(ler): Mertol, Halit Cenan (Tez Danışmanı),

Anahtar Kelimeler

Reliability, Load and Resistance Factors, Reliability Index, Safety Level, Monte Carlo Simulation, First Order Second Moment


Özet

The load and resistance factors used nowadays in the design of reinforced concrete structures were developed before this century. Using these factors from the past significantly penalizes the design of reinforced concrete structures constructed using materials having better quality control and loads having better predictions of occurrences today. The purpose of this study was to develop a tool that determined the load and resistance factors depending on the statistical data (bias and covariance) related to current materials (concrete and steel) and current prediction of loads (dead, live, etc.) and the target reliability index. The First Order Second Moment (FOSM) and Monte Carlo Simulation (MSC) were the methods used as the structural reliability models. The first method was used to determine the resistance parameters for different failure modes. These resistance parameters (biases and covariances) were calculated using 20 million random variables using MCS Method to determine reliability index values. Finally, a program using Microsoft Excel Software was developed to determine custom load and resistance factors to design reinforced concrete members. Based on the input date for biases and covariances of resistance, dead, and live loads; failure modes of the beams and column members; and the target reliability index, the produced program selects custom load factors for your project.


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