LRFD Resistance Factor Calibration for Axially Loaded Drilled Shafts in the Las Vegas Valley

2010

GeoCongress 2012, 2012

Transportation Research Record: Journal of the Transportation Research Board, 2012

Journal of Infrastructure Systems, 2012

Canadian Geotechnical Journal, 2008

Reliability-based design concepts and their application to load and resistance factor design (LRFD or limit states design (LSD) in Canada) are well known, and their adoption in geotechnical engineering design is now recommended for many soil–structure interaction problems. Two important challenges for acceptance of LRFD for the design of reinforced soil walls are (i) a proper understanding of the calibration methods used to arrive at load and resistance factors, and (ii) the proper interpretation of the data required to carry out this process. This paper presents LRFD calibration principles and traces the steps required to arrive at load and resistance factors using closed-form solutions for one typical limit state, namely pullout of steel reinforcement elements in the anchorage zone of a reinforced soil wall. A unique feature of this paper is that measured load and resistance values from a database of case histories are used to develop the statistical parameters in the examples. Th...

Journal of Geotechnical and Geoenvironmental Engineering, 2003

Academia Letters, 2021

Indonesian Journal of Educational Research and Technology

This study aims to determine the impact of social media on students' academic performance in terms of their grade point average (GPA). This study specifically aimed: (1) to determine the percentage of students using social media in terms of doing research work, doing assignments or projects, and studying, (2) to find out the time students spend on social media, (3) to find out the academic performance of students in terms of GPA, (4) to determine if there is a significant relationship between time spent on social media and academic performance in terms of GPA, (5) to determine if there is a significant relationship between usage of social media and academic performance in terms of GPA. A quantitative approach was employed to support this study, particularly the correlation method was utilized. Survey questionnaires were used to solicit data and information from 35 randomly chosen respondents of the study. This study's findings revealed that 80% of students used social media ...