EBookClubs

Read Books & Download eBooks Full Online

EBookClubs

Read Books & Download eBooks Full Online

Book Modelling and Analysis of Reinforced Concrete Structures for Dynamic Loading

Download or read book Modelling and Analysis of Reinforced Concrete Structures for Dynamic Loading written by Christian Meyer and published by Springer. This book was released on 2014-05-04 with total page 257 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive review of the material behavior of concrete under dynamic loads, especially impact and impuls, opens the volume. It is followed by a summary of the various analytical tools available to engineers interested in analyzing the nonlinear behavior of reinforced concrete members for dynamic load. These range from relatively simple and practice-oriented push-over analysis to sophisticated layered finite element models. Important design-related topics are discussed, with special emphasis on performance of concrete frames subjected to seismic loads. The significance of modern software systems is recognized by including extensive examples. For readers not current in dynamic analysis methods, an appendix contains a review of the mathematical methods most commonly used for such analysis.

Book Strength and Behavior of Laced Reinforced Concrete Slabs Under Static and Dynamic Load

Download or read book Strength and Behavior of Laced Reinforced Concrete Slabs Under Static and Dynamic Load written by W. A. Keenan and published by . This book was released on 1969 with total page 69 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this project was to evaluate the behavior of laced reinforced concrete members when subjected to short duration dynamic loads similar to that produced by high-explosive detonations. The primary objective was to establish the increase in stresses and strains in a laced member under dynamic load relative to those produced in the member under static load. Secondary objectives were to evaluate the following characteristics of a laced reinforced concrete member: (a) the dynamic strength throughout the entire range of ductile response, (b) rotation capacity of the member at clamped supports, and (c) the dynamic versus static response under uniform load. (Author).

Book Strength and Behavior of Restrained Reinforced Concrete Slabs Under Static and Dynamic Loadings

Download or read book Strength and Behavior of Restrained Reinforced Concrete Slabs Under Static and Dynamic Loadings written by W. A. Keenan and published by . This book was released on 1969 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two studies, one theoretical, the other experimental are reported. The strength and behavior of restrained reinforced concrete slabs were investigated under both static and dynamic loads. Nine 6-foot-square slabs were tested: six under uniform static pressure and three under long-duration dynamic loads. Steel reinforcement ranged from zero to 1.33 percent. The slabs failed initially in a flexural mode, followed by total collapse at a much greater deflection. The thinner slabs deflected more than 2.5 times their thickness under both types of loading. The theoretical study deals with a square slab, restrained against rotation and longitudinal movement at the edges. The study covers static resistance, failure criteria, size and extent of fragments, and design recommendations. An analytical method is developed to predict the static resistance, deflection, and longitudinal restraining thrust at ultimate failure. The resistance and behavior of longitudinally restrained square slabs are predictable, and if properly designed can resist dynamic loads effectively and more economically than those with no longitudinal edge restraint. (Author).

Book Behaviour and Modelling of Reinforced Concrete Structures Subjected to Impact Loads

Download or read book Behaviour and Modelling of Reinforced Concrete Structures Subjected to Impact Loads written by Selcuk Saatci and published by . This book was released on 2007 with total page 576 pages. Available in PDF, EPUB and Kindle. Book excerpt: The analysis and design of reinforced concrete (RC) structures against extreme loads, such as earthquakes, blasts, and impacts, has been an objective of many researchers and designers. As a result of recently elevated terror threat levels in the world, demand for the impact resistant design of buildings has increased. Numerous studies have been conducted to-date toward understanding and developing methodologies predicting the behaviour of RC structures under impact loads. However, the lack of a complete understanding of shear behaviour under high dynamic conditions hindered the efforts for accurate prediction of impact behaviour, since severe shear mechanisms may dominate the behaviour of RC structures when subjected to impact loads. This current study aimed to apply one of the more successful methods of static reinforced concrete shear analysis, the Modified Compression Field Theory (MCFT), to the analysis of dynamic loads, and thus, develop an efficient and reliable tool for impact analysis of RC structures. A two-dimensional nonlinear finite element analysis program for reinforced concrete, VecTor2, developed previously at the University of Toronto for static loads, was modified to include the consideration of dynamic loads, including impacts. VecTor2 uses the MCFT for its computational methodology, along with a wide array of material and behavioural models for reinforced concrete. To verify the performance of VecTor2 and its computational methodology under impact loads, an experimental program was also undertaken to provide data for corroboration. Eight reinforced concrete beam specimens, four pairs, were tested under free falling drop-weights, impacting the specimens at the mid-span. All specimens had identical longitudinal reinforcement, but varying shear reinforcement ratio, intended to investigate the effects of shear capacity on the impact behaviour. A total of 20 tests were conducted, including multiple tests on each specimen. The test results showed that the shear characteristics of the specimens played an important role in their overall behaviour. All specimens, regardless of their shear capacity, developed severe diagonal shear cracks, forming a shear-plug under the impact point. The VecTor2 analyses of the test specimens were satisfactory in predicting damage levels, and maximum and residual displacements. The methodology employed by VecTor2, based on the MCFT, proved to be successful in predicting the shear-dominant behaviour of the specimens under impact.

Book Fire Static and Dynamic Tests of Building Structures

Download or read book Fire Static and Dynamic Tests of Building Structures written by G.S.T. Armer and published by CRC Press. This book was released on 1997-01-23 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book includes examinations of the role of full-scale buildings in the development of structural design methods and recommendations on improved construction practice and safety of building occupants in the event of fire and explosion.

Book Investigation on the Behaviour of Reinforced Concrete Slabs Under Dynamic Impact Loading

Download or read book Investigation on the Behaviour of Reinforced Concrete Slabs Under Dynamic Impact Loading written by Mudar Hamsho and published by Grin Publishing. This book was released on 2016-06-27 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt: Project Report from the year 2015 in the subject Engineering - Civil Engineering, grade: 1.3 (90-100%), Dresden Technical University, language: English, abstract: In the frame of a research program at the TU Dresden, reinforced concrete slabs are tested in a drop-tower. The goal is to obtain a model with which the prediction of the structural behav-ior of the slabs under high loading rates, depending on different parameters. The global behavior response of RC slabs (symmetric reinforcement without shear stirrups) due to a hard impact projectile and a strain rate 10-1 [1/s] has been addressed in this project-work. A complex drop-mass apparatus is used to conduct experiments and investigations on the impact dynamic behavior of RC slabs The focus was on the response stage of the linear elastic field and how to correlate this re-sponse stage to the drop-height depending on raw experimental data. A process of data analysis for hundreds, thousands, or millions of data measurements has been carried out and an analytical model based on a system of single degree of freedom and different simplifications is shown with different verification methods. The model enables predicting bending response due to impact. The test of 11 slabs with drop-heights (1 to 4 meters) provides the required data to calibrate the analytical model as well as future numerical models.

Book Resilient Infrastructure

Download or read book Resilient Infrastructure written by Sreevalsa Kolathayar and published by Springer Nature. This book was released on 2021-10-28 with total page 509 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the select proceedings of the Virtual Conference on Disaster Risk Reduction (VCDRR 2021). This book discusses various relevant topics such as Disaster resilience and Infrastructure, Risk reduction and structural measures, Evidence based approach for DRR Case studies, Numerical modelling and Constructions methods, Prevention Methods and Safety Engineering, Cross cutting issue in DRR and Infrastructure etc. The book is also a comprehensive volume on multi-hazards and their management for a sustainable built environment. This book will be useful for academicians, research scholars and industry professionals working in the area of civil engineering and disaster management.

Book Dynamic Strength Study of Small Fixed edge Longitudinally Restrained Two way Reinforced Concrete Slabs

Download or read book Dynamic Strength Study of Small Fixed edge Longitudinally Restrained Two way Reinforced Concrete Slabs written by Wayne M. Brown and published by . This book was released on 1973 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt: Increases in ultimate strengths of 23.7 (Series I) and 24.6 (Series II) percent under dynamic loading were obtained. Theoretical slab strengths were determined. Modification of the equations used allowed good predictions of tensile membrane resistance of the static slabs. The equations were used to predict peak pressures sustained by the dynamic slabs.