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Monotonic And Reversed Cyclic Behavior Of Floor To Wall Intersections In Masonry Structures Under In Plane Shear Loading Using 1 3 Scale Direct Modeling Technique
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Book Synopsis Monotonic and Reversed Cyclic Behavior of Floor-to-wall Intersections in Masonry Structures Under In-plane Shear Loading Using 1/3 Scale Direct Modeling Technique by : Kang-Ho Oh
Download or read book Monotonic and Reversed Cyclic Behavior of Floor-to-wall Intersections in Masonry Structures Under In-plane Shear Loading Using 1/3 Scale Direct Modeling Technique written by Kang-Ho Oh and published by . This book was released on 1988 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Structural Modeling and Experimental Techniques, Second Edition by : Harry G. Harris
Download or read book Structural Modeling and Experimental Techniques, Second Edition written by Harry G. Harris and published by CRC Press. This book was released on 1999-03-30 with total page 806 pages. Available in PDF, EPUB and Kindle. Book excerpt: Structural Modeling and Experimental Techniques presents a current treatment of structural modeling for applications in design, research, education, and product development. Providing numerous case studies throughout, the book emphasizes modeling the behavior of reinforced and prestressed concrete and masonry structures. Structural Modeling and Experimental Techniques: Concentrates on the modeling of the true inelastic behavior of structures Provides case histories detailing applications of the modeling techniques to real structures Discusses the historical background of model analysis and similitude principles governing the design, testing, and interpretation of models Evaluates the limitations and benefits of elastic models Analyzes materials for reinforced concrete masonry and steel models Assesses the critical nature of scale effects of model testing Describes selected laboratory techniques and loading methods Contains material on errors as well as the accuracy and reliability of physical modeling Examines dynamic similitude and modeling techniques for studying dynamic loading of structures Covers actual applications of structural modeling This book serves students in model analysis and experimental methods, professionals manufacturing and testing structural models, as well as professionals testing large or full-scale structures - since the instrumentation techniques and overall approaches for testing large structures are very similar to those used in small-scale modeling work.
Book Synopsis Masters Theses in the Pure and Applied Sciences by : Wade H. Shafer
Download or read book Masters Theses in the Pure and Applied Sciences written by Wade H. Shafer and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 421 pages. Available in PDF, EPUB and Kindle. Book excerpt: Masters Theses in the Pure and Applied Sciences was first conceived, published, and disseminated by the Center for Information and Numerical Data Analysis and Synthesis (CINDAS) * at Purdue University in 1957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dissemination phases of the activity were transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thought that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this joint undertaking we had concluded that it was in the interest of all con cerned if the printing and distribution of the volumes were handled by an interna tional publishing house to assure improved service and broader dissemination. Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Cor poration of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 34 (thesis year 1989) a total of 13,377 theses titles from 26 Canadian and 184 United States universities. We are sure that this broader base for these titles reported will greatly enhance the value of this important annual reference work. While Volume 34 reports theses submitted in 1989, on occasion, certain univer sities do report theses submitted in previous years but not reported at the time.
Download or read book The Masonry Society Journal written by and published by . This book was released on 1990 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Behavior of Floor-to-wall Connections in Concrete Masonry Structures by : S. Ahmad Anvar
Download or read book Behavior of Floor-to-wall Connections in Concrete Masonry Structures written by S. Ahmad Anvar and published by . This book was released on 1983 with total page 840 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Seismic Performance of Partially Grouted Reinforced Concrete Masonry Buildings Using 1/3-Scale Units Phase 1: Correlation Study of Masonry Materials and Assemblages by : Emre Alpaslan
Download or read book Seismic Performance of Partially Grouted Reinforced Concrete Masonry Buildings Using 1/3-Scale Units Phase 1: Correlation Study of Masonry Materials and Assemblages written by Emre Alpaslan and published by . This book was released on 2011 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt: In order to justify the feasibility of small-scale concrete masonry modeling technique for the construction of the 1/3-scale masonry test building, model masonry materials and assemblages performance related to nominal full-scale concrete masonry tests must be clearly established. This will be accomplished by conducting a suite of material tests (block units, mortar, grout, and reinforcing steel), assemblage tests (axial compression prism, bed-joint shear (cross specimens), diagonal tension, and flexural tension), and component tests (out-of-plane and in-plane walls) using both full-scale and reduced scale units. This experimental study is intended to investigate the feasibility of using of 1/3-scale direct modeling techniques of concrete block masonry materials and assemblages under different loading conditions. The methodology and techniques of fabrication 1/3-scale direct models of concrete block masonry components material and masonry assemblages were evaluated. For concrete masonry components material, the strength of block unit, mortar and grout and the stress-strain and ductility characteristics of reinforcement were examined. The behavior of ungrouted and grouted 1/3-scale assemblages were investigated by conducting axial compression, bed-joint shear, diagonal tension and modulus of rupture tests. Direct correlation between the model and prototype test results was performed. Good correlation of failure modes, strength and deformation characteristics was achieved. The experimental results demonstrated that direct modeling techniques applied to the investigation of behavior characteristics of masonry materials and assemblages is effective in understanding the overall behavior of full-scale concrete block masonry.
Book Synopsis Monotonic and Cyclic Behaviour of Reinforced Concrete-Masonry Shear Wall Boundary Elements by : Belal Ali AbdelHafeez AbdelRahman
Download or read book Monotonic and Cyclic Behaviour of Reinforced Concrete-Masonry Shear Wall Boundary Elements written by Belal Ali AbdelHafeez AbdelRahman and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: As a seismic force-resisting system (SFRS), reinforced masonry shear walls with masonry boundary elements (RMSW+BEs) were found to achieve enhanced strength, stability, and ductility levels compared to rectangular RMSWs. The seismic design of RMSW+BEs necessitates reliable experimental and analytical investigations of their reinforced masonry boundary elements (RMBEs). The axial monotonic and cyclic stress-strain curves of RMBEs are essential to predict the lateral cyclic response of RMSW+BEs. This research aims to investigate, experimentally and analytically, the axial monotonic and cyclic behaviour of RMBEs built with C-shape masonry blocks. Moreover, this research proposes monotonic and cyclic stress-strain models for unconfined and confined RMBEs subjected to axial compression loading. Furthermore, a numerical study was performed to assess the sensitivity of the nonlinear seismic response of RMSW+BEs to various wall configurations and design parameters. This research's experimental work involved investigating various parameters affecting the compressive strength of fully grouted concrete masonry prisms and the axial monotonic and cyclic behaviour of RMBEs. Forty-two masonry prisms and 69 RMBEs were tested. The studied parameters were the vertical reinforcement ratio, the confinement ratio, the cross-section geometry (i.e., square vs. rectangular RMBEs), the masonry bonding pattern, pre-wetting of dry RMBEs, various grout types, and the grout compressive strength. The results showed that RMBEs built with rectangular sections exhibited enhanced strain ductility and post-peak behaviour than square RMBEs. Besides, using low grout compressive strength significantly reduced the strain ductility and yielded sharp strength degradation of the RMBEs. The RMBEs' experimental results revealed that the monotonic stress-strain curves form envelope curves to their cyclically tested counterparts. The proposed monotonic and cyclic stress-strain models showed good-to-excellent agreement with the experimental results, predicting the envelope and cyclic stress-strain curves' major characteristics. The numerical study's results showed that the seismic design of RMSW+BEs can be optimized through careful choice of their design parameters. Enhancing the RMSW+BEs lateral yield and ultimate capacities and the lateral effective stiffness can be achieved by increasing the vertical reinforcement ratio of the RMBEs and the masonry compressive strength. Contrarily, reducing the masonry strain at peak stress and/or the masonry modulus of elasticity greatly hinders the walls' displacement ductility.
Book Synopsis Historical Earthquake-Resistant Timber Frames in the Mediterranean Area by : Nicola Ruggieri
Download or read book Historical Earthquake-Resistant Timber Frames in the Mediterranean Area written by Nicola Ruggieri and published by Springer. This book was released on 2016-10-06 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a selection of the best papers from the HEaRT 2013 conference, held in Cosenza, Italy, which provided a valuable forum for engineers and architects, researchers and educators to exchange views and findings concerning the technological history, construction features and seismic behavior of historical timber-framed walls in the Mediterranean countries. The topics covered are wide ranging and include historical aspects and examples of the use of timber-framed construction systems in response to earthquakes, such as the gaiola system in Portugal and the Bourbon system in southern Italy; interpretation of the response of timber-framed walls to seismic actions based on calculations and experimental tests; assessment of the effectiveness of repair and strengthening techniques, e.g., using aramid fiber wires or sheets; and modelling analyses. In addition, on the basis of case studies, a methodology is presented that is applicable to diagnosis, strengthening and improvement of seismic performance and is compatible with modern theoretical principles and conservation criteria. It is hoped that, by contributing to the knowledge of this construction technique, the book will help to promote conservation of this important component of Europe’s architectural heritage.
Book Synopsis In-Plane Shear Behaviour of Fully Grouted Reinforced Masonry Shear Walls by : Hany Mohamed Seif ElDin
Download or read book In-Plane Shear Behaviour of Fully Grouted Reinforced Masonry Shear Walls written by Hany Mohamed Seif ElDin and published by . This book was released on 2016 with total page 371 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reinforced masonry (RM) shear walls are the key structural elements widely used to resist lateral loads in masonry buildings due to their capability to provide lateral strength, stiffness, and energy dissipation. The flexural behaviour of RM shear walls is well defined and follows the simple flexural theory of reinforced concrete structures based on plane-section assumption. On the other hand, the shear behaviour of RM shear walls in the plastic hinge region is more complex due to the interaction between the nonlinear responses of their constituent materials, namely: concrete masonry blocks, mortar, grout, and steel reinforcement. The main objective of this thesis is to evaluate the inelastic behaviour of fully grouted RM shear walls that are dominated by shear failure. The research objective was achieved by conducting experimental, numerical, and analytical studies. The experimental work involved assessing the response of nine full-scale fully grouted rectangular RM shear walls when subjected to in-plane axial compressive stress, cyclic lateral excitations, and top moment. The main variables considered were the level of axial compressive stress, shear span to depth ratio, horizontal reinforcement ratio, anchorage end detail, and the spacing of horizontal and vertical reinforcement. The effect of the studied parameters is analyzed and presented in detail according to force-based, displacement-based, and performance-based seismic design considerations. Moreover, nonlinear finite element models were developed to simulate the behaviour of RM shear walls subjected to cyclic loading, and validated using results from the nine RM tested walls. Good agreements with the experimental load-displacement hysteretic loops were achieved in all models. In addition, a parametric study was performed to consider more variations in some of the parameters examined in the experimental work, which arrived at similar conclusions of the tested walls. Using the results of the tested RM shear walls together with the parametric study, an equation for predicting the in-plane shear strength, Vn, of RM shear walls was proposed and verified with results of 64 RM wall tests from five sources in the literature. Statistical analysis was performed to evaluate the accuracy of the proposed equation against ten widely-used equations, including the design equations given in the Canadian Standards Association CSA S304-2014, the US Masonry Standards Joint Committee MSJC-2013, and the Standards Association of New Zealand NZS 4230:2004. The analysis shows that the proposed equation provides a sufficiently conservative and more accurate prediction for Vn than any of the other evaluated equations.
Book Synopsis Study of Deflection of Single and Multi-Storey Light Frame Wood Shear Walls by : Mohammad Mehdi Bagheri
Download or read book Study of Deflection of Single and Multi-Storey Light Frame Wood Shear Walls written by Mohammad Mehdi Bagheri and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The behavior of wood shear walls has been the focus of researchers and engineers for many years due to their availability in the North American construction landscape. A review of the established literature showed that most of the research have focused on the shear wall behavior as a whole with no investigation specifically targeting the individual components of its deflection. Also, little to no attention has been given to the investigation of the cumulative effects especially when the out-of-plane diaphragm stiffness is considered. The current study aims at investigating the effects of construction details variation on the behavior of the shear walls and evaluating whether the current deflection equation, as per wood design standard (CSA 2014) can adequately predict the overall wall stiffness. A total of 27 full-scale single-storey walls, with different construction details and aspect ratios, were tested under either static or monotonic (as both are the same) loading. The parameters that were varied in the testing were the stud size and spacing, nail diameter and spacing, sheathing panel type and thickness and hold-down anchoring system/type. For the two-storey walls, two different loading cases were considered, namely where the load was applied at the top or bottom storey only. The results showed that the strength and stiffness correlated almost directly to the inverse of the wall aspect ratio. There was no clear trend when considering the effect of the walls' aspect ratios on ductility. Unexpectedly, walls with aspect ratios not permitted according to the wood design standard (4:1 and 6:1) followed similar strength and stiffness trends and had sufficient ductility ratios as those with smaller aspect ratios. This observation explains in part some of the discrepancies found between engineering calculations and behavior of actual building with light frame wood shear walls. Significant discrepancies were found when comparing the various deflection constituent with those estimated using the design expression. Adding more end studs and changing the size of the studs had no significant effect on the overall wall capacity and little effect on its stiffness. Reducing the stud spacing had, as expected, no effect on the wall capacity; however, the results showed that the bending stiffness was affected by the overall number of studs in the wall and not solely by the end studs. Shear walls sheathed with plywood panels exhibits slightly higher peak load and initial stiffness than those with OSB, which was mainly attributed to the greater panel thickness, and possibly density, of the plywood. Both sheathing types provided similar levels of ductility, as expected. Thicker sheathing increased the capacity and stiffness of the wall with no significant change observed in ductility ratio. The wall strength was significantly affected by the nail diameter and nail spacing, but no difference was observed when the nail edge/end distance was increased. The results also showed that discrete hold-down system behaved in a non-linear manner with a significantly greater initial stiffness than that assumed in design. The study also showed that having continuous hold-down connections has a positive effect on the capacity, stiffness and ductility of the wall when compared with discrete hold-downs. Having no hold-down adversely affects the wall capacity and stiffness, but did not affect the ductility of the wall. For the two-storey walls, the deflection estimated based on the cumulative effect assumption showed slight differences when compared with that observed in the experimental study. It was observed that the majority of the cumulative effect stems from the rigid body rotation due to deformation in the hold-down devices. A Computer shear wall model (through SAP2000) was developed using linear "frame" and "membrane" elements for the framing and sheathing members, respectively, whereas the sheathing to framing nails and hold-down were modeled using nonlinear springs. It was found that the model was capable of predicting the peak load, ultimate deflection and yield loads with reasonable accuracy, but overestimated the initial stiffness and ductility of the walls. In general, when the force-displacement curves were compared it was evident that the model was capable of predicting the wall behaviour with reasonable accuracy. When investigating the cumulative effects using the model, the results clearly showed that the assumption of cumulative effects due to rigid body rotation is valid for stacked shearwalls with no consideration for the floor diaphragm. The effect of the diaphragm on the behavior of the shear walls, in particular its out-of-plane rigidity was simulated by modeling the floors as beam. The out of plane stiffness of the shear walls was investigated for idealized (infinitely stiff or flexible) as well as "realistic". The results showed reductions in the shearwall deflection in the magnitude of approximately 80% considering the out of plane rigidity of the diaphragm. It was also concluded that considering conservative estimates of out of plane stiffness might lead to a very significant reduction in deflection and that assuming the floor diaphragm to be infinitely rigid out of plan seems reasonable. For diaphragms supported on multiple panels further reduction in the deflection was observed. More work, particularly at the experimental level, is needed to verify the finding obtained in the numerical investigation related to the effect of out of plane diaphragm stiffness.
Book Synopsis Behaviour of Partially Grouted Reinforced Masonry Shear Walls Under Cyclic Reversed Loading by : Majid Maleki
Download or read book Behaviour of Partially Grouted Reinforced Masonry Shear Walls Under Cyclic Reversed Loading written by Majid Maleki and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Behavior of Reinforced Concrete Masonry Walls Subjected to Combined Axial Loading and Out-of-plane Bending by : Kun Hu
Download or read book Behavior of Reinforced Concrete Masonry Walls Subjected to Combined Axial Loading and Out-of-plane Bending written by Kun Hu and published by . This book was released on 2005 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis NEHRP Recommended Provisions (National Earthquake Hazards Reduction Program) for Seismic Regulations for New Buildings and Other Structures: Commentary by : United States. Federal Emergency Management Agency
Download or read book NEHRP Recommended Provisions (National Earthquake Hazards Reduction Program) for Seismic Regulations for New Buildings and Other Structures: Commentary written by United States. Federal Emergency Management Agency and published by . This book was released on 2001 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Computational Strategies for Masonry Structures by : Paulo José Brandão Barbosa Lourenço
Download or read book Computational Strategies for Masonry Structures written by Paulo José Brandão Barbosa Lourenço and published by . This book was released on 1996 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Flexural Behavior of Reinforced Block Masonry Walls Under Out-of-plane Monotonic Loading by : Muris Wadie Farah
Download or read book Flexural Behavior of Reinforced Block Masonry Walls Under Out-of-plane Monotonic Loading written by Muris Wadie Farah and published by . This book was released on 1988 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effects of Key Parameters on the Performance of Concrete Masonry Shear Walls Under In-plane Loading by : Jacob Dean Sherman
Download or read book Effects of Key Parameters on the Performance of Concrete Masonry Shear Walls Under In-plane Loading written by Jacob Dean Sherman and published by . This book was released on 2011 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Experimental Performance of Concrete Masonry Shear Walls Under In-plane Loading by : Christina Marie Kapoi
Download or read book Experimental Performance of Concrete Masonry Shear Walls Under In-plane Loading written by Christina Marie Kapoi and published by . This book was released on 2012 with total page 147 pages. Available in PDF, EPUB and Kindle. Book excerpt:
