Abstract Structural analysis is the mathematical calculation of forces, stresses, and deflections within structures, either as part of the design of those structures or as a tool in understanding the performance of existing structures. There are two broad classes of analysis: classical methods and matrix methods. The distinction is based on theory: classical methods were developed to analyze particular types of simple structures and provide answers by means of analytical formulation; matrix methods which are more general and systematic so that they can be conveniently handle structures of any size and complexity, and are computer-oriented using matrix computations. Both approaches, however, are based on the same three fundamental relations: equilibrium, constitutive, and compatibility. The solutions are approximate when any of these relations are only approximately satisfied. Finite element analysis, which originated as an extension of matrix analysis to surface structures (e.g., plates and shells), has now developed to the extent that it can be applied to structures and solids of practically any shape or form. The application of these methods usually requires an understanding on the part of the analyst of the structural analysis principals. The objective of this thesis is to give comparative study of the methods applied in the structural analysis: Classical, Matrix, and Finite-Element.
مالك أحمد النفاتي (2009)

ﺗم ﺗﻧﻔﯾذ ﺣﺎﺟز اﻷﻣواج اﻟرﺋﯾﺳﻲ ﻟﻣﯾﻧﺎء طراﺑﻠس اﻟﺑﺣري ﺑوﺿﻌﻪ اﻟﺣﺎﻟﻲ ﺧﻼل ﻓﺗرة اﻟﺳﺑﻌﯾﻧﯾﺎت ﺟراء اﻟﻌواﺻف اﻟﺗﻲ اﺟﺗﺎﺣت اﻟﻣﻧطﻘﺔ ﺧﻼل ﺑداﯾﺔ ،وﺑﻣﺟرد اﻧﺗﻬﺎﺋﻪ ﺗﻌرض اﻟﺣﺎﺟز ﻷﺿرار ﺑﺎﻟﻐﺔ اﻟﻣﺗﻣﺛل ﻓﻲ ﺳوء ﺗﻘدﯾر ،ﻧﺗﯾﺟﺔ ﻟﻘﺻور اﻟﺗﺻﻣﯾم،ﻣﻣﺎ أدى إﻟﻰ اﻧﻬﯾﺎر ﺑﻌض أﺟزاﺋﻪ ﺑﺎﻟﻛﺎﻣل،اﻟﺛﻣﺎﻧﯾﻧﺎت إﻟﻰ ﺣﺎﻓﺔ ،ﺧﻠف اﻟﻧﺗوءات اﻟﺻﺧرﯾﺔ ، وﺗﻐﯾﯾر ﻣوﺿﻊ اﻟﺣﺎﺟز ﻣن ﻣﺳﺎرﻩ اﻟﺳﺎﺑق ،اﻟﻣوﺟﺔ اﻟﺗﺻﻣﯾﻣﯾﺔ اﻟﺣﯾداﻟﺑﺣري. إﻻ ، وﻓﻘﺎً ﻹﻋﺎدة ﺗﻘﯾﯾم اﻟظروف اﻟﻣﻧﺎﺧﯾﺔ ﻟﻠﻣﻧطﻘﺔ ،ﺗم إﻋﺎدة ﺗﺻﻣﯾم اﻟﺣﺎﺟز 1982وﻓﻲ ﻋﺎم ﻣﻣﺎ أدى إﻟﻰ ،ﺳﻧﺔ 17 أن أﻋﻣﺎل إﻋﺎدة ﺗﺄﻫﯾل اﻟﺣﺎﺟز ﻟم ﺗﻧﻔد ﻟﻣدة زادت ﻋن ، ز ﯾﺎدة ﺣﺟم اﻷﺿرار ﺑﺎﻟﺗﺎﻟﻲ ﺗم إﻋﺎدة ، ﻟم ﯾﻌدﻣﻧﺎﺳﺑﺎً ﻟوﺿﻊ اﻟﺣﺎﺟز ﺣﯾﻧﻬﺎ 1982 إﻟﻰ اﻟﺣد اﻟذي أﻋﺗﺑرﻣﻌﻪ أن ﺗﺻﻣﯾم ﻋﺎم ﺗﺄﺧرت ﻣﺟدداً إﻟﻰ ،وﺗﻧﻔﯾذ اﻹﺻﻼﺣﺎت اﻟﻼزﻣﺔ ، إﻻ أن أﻋﻣﺎل إﻋﺎدة اﻹﻧﺷﺎء ،1999 اﻟﺗﺻﻣﯾم ﻓﻲ ﻋﺎم ﺳﻧﺔ أﺧرى، وﺑﺎﻟﺗﺎﻟﻲ ﺟﺎءت ﻫذﻩ اﻟدراﺳﺔ ﻟﺗﻘﯾﯾم ﻣدى ﻣﻼﺋﻣﺔ 11 أي ﻟﺣواﻟﻲ ،2010ﺑداﯾﺔ اﻟﻌﺎم ﺳواءً ﻣن ﺣﯾث اﺧﺗﻼف ﻣﺣددات اﻟﺗﺻﻣﯾم ،ﺗﺻﺎﻣﯾم اﻟﻣﺷروع ﻟﻠﺣﺎﻟﺔ اﻟﻔﻧﯾﺔ اﻟﻘﺎﺋم ﻋﻠﯾﻬﺎ اﻟﺣﺎﺟز ﺣﺎﻟﯾﺎً أو درﺟﺔ ﺗدﻫور اﻟﻌﻧﺎﺻر اﻟﺧرﺳﺎﻧﯾﺔ ﻟﻠﺣﺎﺟز، وﻗد ﺗم ذﻟك ﻣن ﺧﻼل ﻣﻘﺎرﻧﺔ اﻟﺑﯾﺎﻧﺎت اﻟﻣﺟﻣﻌﺔ و اﻟﺗﺻﻣﯾم . ﺑﻣﺎ ﺗم ﺗﺟﻣﯾﻌﻪ ﻣن ﺑﯾﺎﻧﺎت ﺣﺎﻟﯾﺔ ،1999 اﻟﻧﻬﺎﺋﻲ ﻟﻠﻣﺷروع ﻋﺎم و ﺧﻠﺻت اﻟدراﺳﺔ، إﻟﻰ أن اﻟﻣﻌطﯾﺎت اﻟﺗﻲ ﺑﻧﯾت ﻋﻠﯾﻬﺎ ﻣﺣددات اﻟﺗﺻﻣﯾم اﻷﺳﺎﺳﯾﺔ وﺧﺻوﺻﺎً اﻟﻣوﺟﺔ اﻟﺗﺻﻣﯾﻣﯾﺔ ﯾﻧﺑﻐﻲﻣراﺟﻌﺗﻬﺎ ﻣن ﺧﻼل ﻣﺎ ﻫو ﻣﺗﺎح ﻣن ﺑﯾﺎﻧﺎت ﻣﻧﺎﺧﯾﺔ ﺟدﯾدة، ﻛﻣﺎ أن طرق وﻛﻣﯾﺔ اﻹﺻﻼﺣﺎت اﻟﻣﻘﺗرﺣﺔ ﻟﻠﻌﻧﺎﺻر اﻟﺧرﺳﺎﻧﯾﺔ ﻟم ﺗﻌد ﻛﺎﻓﯾﺔ ﻟﻣﺎ ﺑﻠﻐﺗﻪ ﻫذﻩ اﻟﻌﻧﺎﺻر ﻣن أﺿرار. Abstract Been implemented breakwater's main port of Tripoli Maritime as it now stands during the seventies, and once it had completed was the barrier to damage, due to the storms that swept the region during the early eighties, which led to the collapse of some of its parts in full, as a result of inadequate design, of miscalculation wave design, and change position of the barrier from the previous track, behind the rocky outcrops, to the edge of the reef. In 1982 was the redesign of the barrier, according to a re-evaluation of the climatic conditions of the region, but the rehabilitation work on the barrier does not run out for a period in excess of 17 years, leading to increase the size of the damage, to the extent that I consider him that the design of 1982 is no longer appropriate for the development of barrier timely, therefore, been re-design in 1999, but that the work of re-construction, and implement the necessary reforms, delayed again to the beginning of the year 2010, ie about 11 years old again, and therefore this study was to assess the adequacy of project designs for the case of art based upon the barrier currently, both in terms of different design parameters or the degree of deterioration of the concrete elements of the barrier, has been done by comparing the data collected and the final design of the project in 1999, what has been compiled from the current dat The study concluded, that the data upon which the determinants of basic design, especially the wave design should be reviewed through the availability of a new climate data, and methods and the amount of proposed reforms of the concrete elements are no longer sufficient for the language of these elements of damage
أكرم البشير الشتيوي (2011)

The number of deteriorating bridges due to chloride-induced corrosion increases annually as does the cost of inspection, maintenance, repair and where necessary replacement. Meanwhile, budgets made available to bridge owners/managers for repair and maintenance of these bridges are reducing. To optimise and manage their budget spend, bridge owners/mangers need to rely more on rational decision making methods rather than on subjective engineering judgment. In this thesis, the author has developed a probabilistic- based model which aims to predict the lifetime performance of Reinforced Concrete (RC) structures exposed to chloride corrosive environment and consequently to optimise their lifetime management.
Omran Kenshel(11-2009)