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 68 for “"Live Load"”.
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A stochastic live load model for buildings.
Massachusetts Institute of Technology, Dept. of Civil Engineering. Thesis. 1972. Ph. D.
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Live Load Testing of Appalachia, Va Concrete Arch Bridges for Load Rating Recommendation
… downtown Appalachia, Virginia were selected for live load testing by Virginia Department of Transportation (VDOT). Both bridges have supported an increasing amount of extreme coal truck traffic throughout their service life and are essential to the efficient transport of coal in the region. …
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Simplified live-load moment distribution factors for simple span slab on I-girder bridges
… identify and assess various methods of computing live load distribution factors and to use the results of laboratory and field tests to compare these methods. It is further a goal of this work to use these methods to perform a parametric study over a wide range of typical slab on steel I-girder …
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A determination of the live load on locomotive driving springs, under actual running conditions
Thesis: B.S., Massachusetts Institute of Technology, Department of Mechanical Engineering, 1906
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Analysis and comparison of the South African and Eurocode live load models for railway bridges
… Transport Services (SATS) and Eurocode (EC) live load models for railway bridges. The study is specifically concerned with the critical load effects of shear and bending moment. The load models are simulated as moving loads over the full length of simply supported and continuous railway …
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Live load distribution factors for multi-span girder bridges with plank decking subjected to farm vehicles
… provide simplified formulae to determine Live Load Distribution Factors (LLDFs) for highway bridges. The formulae for the AASHTO code-specified LLDFs have been developed, considering the effect of typical highway trucks. In addition to highway bridges, there are a large number of bridges …
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Live Load Testing and Analysis of the Southbound Span of U.S. Route 15 over Interstate-66
… LTBP Pilot Program, researchers have performed live load tests on the U.S. Route 15 Southbound bridge over Interstate-66. The main performance and behavior characteristics focused on are service strain and deflection, wheel load distribution, dynamic load allowance, and rotational behavior of …
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Review of South African live load models for traffic loading on bridge and culvert structures using weigh-in-motion (WIM) data
… weigh-in-motion (WIM) sensors to calculate the load effects on single lane, simply supported structures spanning up to 30m. The main objective was to compare the load effects caused by the recorded vehicles with those calculated using TMH7 Part 2 and the alternative live load models proposed in …
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Refined Evaluation of Effective Prestress in the Varina-Enon Bridge
… the Varina-Enon Bridge is back-calculated using live load strain data from the long-term data collection system. Previous work has overestimated live load moment since the influence of the crack opening has not been accounted for. This research refines the methods used to determine live load …
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Effect of loaded length on the buckling strength of slender arches
… of slender arches subjected to a static dead load that is uniform over the structure and to a static live load that is uniform on a horizontal projection. The live load starts at one end and extends over a variable length. The effect of the length of the live load on the buckling behavior of a …
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Field monitoring of integral abutment bridge approach slabs
… testing was conducted to study the effects of live load on the approach slabs. Although live load effects were distinctly observed, the thermal strain change even during daily cycles is more substantial compared to live load induced strains. Finite element analyses of the IAB approach slabs …
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Performance of a Bridge Deck with Glass Fiber Reinforced Polymer (GFRP) Bars as the Top Mat of Reinforcement
… first objective of this research was to perform live load testing on a bridge deck reinforced with GFRP in one span and steel in the other. The results were compared to the findings from the initial testing performed one year earlier. The strains and deflections of the bridge deck were recorded …
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The influence of load distribution on the reliability analysis of lumber properties data
… information concerning the statistical nature of loads acting on light frame structures, distributions of maximum lifetime roof snow load and maximum lifetime floor live load were developed for use in differential reliability analyses of lumber properties data. The dead load was combined with the …
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Review of codes of practice for the design of box culverts for recommendation for South African Bureau of Standards (SABS)
… study of the application of the vertical earth load, traffic live load and the nominal earth pressure in the design methodology of culverts as outlined in TMH7 – Code of Practice for the design of highways bridges and culverts in South Africa Part 2, AASHTO LRFD Bridge Design specification and …
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Time varying probability of failure of steel floor beams subjected to real fire
… severity, heat transfer, mechanical properties, loads, structural analysis and reliability. Simple submodels have been adopted commensurate with the level of accuracy of other models in fire safety engineering. The submodel for real fire severity is Lie's. Heat transfer submodels have been …
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Reliability of reinforced concrete beams in torsion
… with an increase in beam reinforcement. When the live load is reduced for members having a load influence area greater than 400 ft 2, the reliability index is found to increase with increase in basic live load to nominal dead load ratio.
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The comparison of working stress design, ultimate strength design and limit design theories of reinforced concrete
… based on the redistribution of moments at high loads. This thesis presents the comparison of these three theories of reinforced concrete. The members of an interior panel of a continuous framed structure are designed by the working stress design method and then a few members are analyzed by the …
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