Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 30 for “"Masonry walls"”.
-
On the Effective Stiffness of Slender Concrete Masonry Walls
The slender masonry wall design procedure in the Canadian Standard for Design of Masonry Structures, CSA S304-14, (2014) has been found to be overly conservative. The calculated effective stiffness term, EIeff, which is used to determine the secondary moment due to wall deflection, was noted as a …
-
Assessment of Perforated Unreinforced Masonry Walls Responding In-Plane
… seismic assessment of perforated unreinforced masonry (URM) walls subjected to in-plane loading through accurate analysis of the wall lateral capacity and seismic demand. Current assessment methods for determining the capacity of perforated URM walls loaded in-plane, as outlined in the New …
-
Nanoenhanced Polyurea As A Blast Resistant Coating For Concrete Masonry Walls
… of improved blast resistance for concrete masonry walls. However, many available protective coatings are not flame retardant. This thesis focuses on nanoenhanced polyurea for applications in improving blast resistance, while possessing improved flame retardancy, of concrete masonry walls. …
-
Seismic Performance of Unreinforced Masonry Walls Retrofitted with Post-tensioning Tendons
Unreinforced masonry (URM) structures have historically been regarded as structurally unsound in response to seismic events. The tendency for URM walls to collapse out-of-plane in a brittle manner is continually cause for concern. Retrofit of these walls is necessary in order to prevent severe …
-
Passive solar energy : modifications of existing masonry walls to improve thermal performance.
Existing brick walls usually have a high U value, one method of improvement is by insulation, but if the wall faces approximately south, it is possible that greater benefits could be obtained by improving the wall's performance as a solar collector. Three solid 225 mm walls were constructed: one …
-
Equivalent Viscous Damping and Inelastic Displacement for Strengthened and Reinforced Masonry Walls
The masonry still one of the widespread construction system for low-rise residential buildings even for countries prone to seismic risk. Despite seismic design methods yet in use are force-based, in the last decades was highlighted as the differences in strength between two levels of damage is low, …
-
An Analytical Study of the Interaction of Frames and Infill Masonry Walls
… severely damaged due to the presence of infill masonry walls acting in the plane of the frame. In this study a nonlinear dynamic model to study the behavior of frames infilled by masonry walls has been presented. The nonlinearities of the model include the interaction between the frame and wall, …
-
Blast Retrofit of Unreinforced Masonry Walls Using Fabric Reinforced Cementitious Matrix (FRCM) Composites
Unreinforced masonry (URM) walls are commonly found in existing and heritage buildings in Canada, either as infill or load-bearing walls. Such walls are vulnerable to sudden and brittle failure under blast loads due to their insufficient out-of-plane strength. The failure of such walls under blast …
-
Fatigue of Masonry Walls with CFRP Applied Externally for Out-of-Plane Loads
… fiber- reinforced polymers (FRP) when applied to masonry walls subjected to out-of-plane loading. The project aims to provide further research and add to the general testing database of FRP enhanced masonry. An introduction to the problems and solutions associated with unreinforced masonry is …
-
Empirical analysis of masonry walls : structural design and seismic reinforcement through tilting experiments
Masonry is a fundamental building material that is used for a significant proportion of structures across the world, many of which lie in potentially hazardous environments. While masonry naturally has poor performance under lateral loads which lead to tensile forces, many of these structures lie …
-
Increasing the Blast Resistance of Concrete Masonry Walls Using Fabric Reinforced Cementitious Matrix (FRCM) Composites
Unreinforced masonry (URM) walls are often used as load-bearing or infill walls in buildings in many countries. Such walls are also commonly found in existing and heritage buildings in Canada. URM walls are strong structural elements when subjected to axial loading, but are very vulnerable under …
-
Influence of Diaphragm Flexibility on the Out -of -Plane Dynamic Response of Unreinforced Masonry Walls
… on the out-of-plane behavior of unreinforced masonry bearing walls in buildings subjected to earthquake motions. Results from a set of shake table tests reveal that, in general, the walls performed very well despite the intensity of the base motion and the slenderness of the wall. This was due …
-
Strengthening of reinforced masonry walls subjected to out-of-plane pseudo-static cyclic load using advanced composite
… conducted experimental tests on unreinforced masonry walls (URM) strengthened with advanced composite materials. Consequently, the strengthening design guidelines are limited in their scope to URM. This research aimed to investigate the behavior of reinforced masonry walls strengthened with …
-
Towards Nearly Zero Energy Buildings in Lebanon: Bioclimatic Design and Experimental Strategies
… three test cells with different double masonry walls and insulation configurations are built and their internal temperatures are monitored for a full summer season. They are maintained under a strictly-controlled environment. Later, these test cells are computationally simulated and …
-
Optimization of timber-based strengthening techniques for the seismic retrofit of existing masonry buildings
… the seismic and energy retrofit of unreinforced masonry (URM) buildings considering various case scenarios and evaluating both the mechanical and the energetic performance of the intervention. Timber engineered products were employed as base components for the retrofit intervention. The products …
-
Hotel and Conference Center for Foreign Dignitaries
… and surfaces reinforced by parallel load bearing masonry walls. These brick walls buffer the interior from the exterior and demarcate the program. Punched voids provide natural light. Each element including entry, wall, stair, column, and fireplace is designed to comply with the collective …
-
The hidden life of Montrose : strategies for building in an historic environment
… buildings. The discovery of really thick masonry walls at Montrose serves as inspiration for the principle of using thick masonry walls as another ordering system. Building within an existing environment will become increasingly important as expansion of cities becomes less favourable as …
-
On The Shear Strength Of Partially Grouted Concrete Masonry
Masonry shear walls are one of the most common structural elements in buildings. The in-plane shear capacity of load-bearing walls is of great importance in the seismic design of structures. This study focuses on the shear behaviour of wide-spaced reinforced partially grouted (WRPG) concrete …
-
The impact of high frequency/low energy seismic waves on unreinforced masonry
… higher frequency waves travelling through stiff masonry structures can trigger two types of failure mechanisms that have not yet been taken into account. First, the high frequencies can cause small vertical inter-stone vibrations that result in irreversible relative displacements of the stones, …
Page 1 of 2