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.
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Showing 1 to 20 of 115 for “"seismic performance"”.
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Seismic performance of pile-reinforced slopes
… support elements of transport infrastructure in seismic regions. In this thesis, the seismic performance of such slopes in non-liquefiable granular soils has been investigated and an extensive programme of centrifuge testing was conducted to quantify the improvements to seismic slope performance …
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Seismic Performance of Anchored Brick Veneer
A study was conducted on the out-of-plane seismic performance of anchored brick veneer with woodframe backup wall systems, to evaluate prescriptive design requirements and current construction practices. Prescriptive requirements for the design and construction of anchored brick veneer are …
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Stochastic Seismic Performance Evaluation of Buildings
A method is presented for determining the probabilities that a structure will sustain various levels of damage or become unsafe due to earthquake loading during its lifetime. Uncertainties in the dynamic analysis associated with both the loading and the prediction of the structural response are …
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Seismic performance assessment for structural optimization
… of earthquakes has spurred the implementation of performance-based design to mitigate damage in addition to protecting human lives. A developing trend is to consider damage directly as a measure of seismic performance. In spite of the ability to estimate the cost of future earthquakes, adjusting …
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Seismic Performance of Precast Concrete Flooring Systems
… Zealand highlighted several concerns around the seismic performance of the support connections for precast concrete flooring systems. The objective of this research was to investigate the support connection detailing for these precast concrete flooring systems that had been identified as …
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Methods for improving seismic performance of bridges
Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 1998.
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Seismic performance of single-propped retaining walls
This thesis analyzed the dynamic performance of single-propped retaining walls in dry sand under different seismic excitations using the finite difference software FLAC v7.0 (Itasca). The structure comprises two reinforced concrete diaphragm walls connected by a row of cross-lot struts that is used …
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Seismic Performance of Self-Consolidating Concrete Bridge Columns
… at South Dakota State University to evaluate the seismic performance of self-consolidating concrete (SCC) bridge columns. This study included literature review, experimental evaluation of concrete mixtures, experimental testing of reinforced concrete bridge columns under combined axial loading and …
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Seismic Performance of Prestressed Pile-To-Bent Cap Connections
… a SCDOT sponsored research project to study the seismic performance of precast prestressed concrete piles plainly embedded into cast-in-place bent caps, a full scale 3-pile bridge bent was constructed based on typical SCDOT designs and subjected to earthquake loading at the Large Scale Structures …
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Seismic Performance Assessment of Wood-Frame Shear Wall Structures
… of this dissertation is to evaluate the seismic performance of a wide range of wood-frame shear wall building designs under the influence of modeling and analysis parameter variations. The first step towards the broad objective of seismic performance evaluation is to identify the …
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Retrofitting beam-to-column joints for improved seismic performance microform
… did not include provisions for ductility during seismic events was not prevalent in most codes. The guidelines that did exist were minimal, and often left a fair amount of room for interpretation by the design engineer. Hence, many of the reinforced concrete structures designed during that time …
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Seismic Performance of Rail-Counterweight System of Elevator in Buildings
… the effect of different parameters on the seismic responses of the rail-counterweight system. In order to improve the seismic performance of the rail-counterweight system, several protective schemes are investigated. One simple approach is to increase the damping of the system using …
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Seismic Performance of Unreinforced Masonry Walls Retrofitted with Post-tensioning Tendons
… 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 damage and injury to occupants. This paper is concerned with …
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Seismic Performance of Square Nickel-Titanium Reinforced ECC Columns with Headed Couplers
Current bridge seismic design could be improved by moving towards performance based design to keep bridges operational and keep repair costs to a minimum by reducing damage to column plastic hinges and minimizing residual drifts. These objectives can be accomplished by using innovative materials …
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Experimental Investigation into the Long-Term Seismic Performance of Dry Storage Casks
… were conducted to assess the long-term seismic performance of Dry Storage Casks (DSCs). Four scaled specimens were designed to cover a wide range of commercially available DSCs with emphasis on aspect ratios, the radius over the height of the center of mass (r/hc.g.). The aspect ratios …
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Seismic Performance of Column-to-Drilled-Shaft Connections in Reinforced Concrete Bridges
… on the behavior of these connections under seismic loads. In order to understand the force-transfer mechanism of column-shaft connections under seismic loading, one quasi-static cyclic experimental test was conducted on a column-shaft subassembly. Measured results were compared with those …
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Seismic Performance of Prestressed Concrete Piles In Cip Reinforced Concrete Pile Caps
… (CIP) reinforced concrete bent caps subjected to seismic loading is not well understood. Current standard SCDOT connection details require the plain embedment of the pile into the bent cap one pile diameter with a construction tolerance of ± 6 inches. To better understand the moment capacity and …
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Development of Electromagnetic Friction Dampers for Improving Seismic Performance of Civil Structures
… extensively in friction dampers to improve seismic performance of civil structures. Friction dampers are well-known for having a highly nonlinear hysteretic behavior caused by stick-slip motion at low velocities, a phenomenon that is inherent in friction and increases the acceleration …
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Seismic performance assessment of quasi-isolated highway bridges with seat-type abutments
"Seismic isolation is one of the most popular strategies to protect civil engineering structures against earthquake hazards. For highway bridges, isolation physically decouples a bridge superstructure from its substructures resting on a shaking ground, leading to a significant reduction in the …
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