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 87 for “"load tests"”.
-
Physical modeling of pile load tests in sand using the similitude and compressibility concepts
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2027-05-01
-
Full-Scale Lateral-Load Tests of a 3x5 Pile Group in Soft Clays and Silts
<p>A series of static lateral load tests were conducted on a group of fifteen piles arranged in a 3x5 pattern. The piles were placed at a center-to-center spacing of 3.92 pile diameters. A single isolated pile was also tested for comparison to the group response. The subsurface profile consisted of …
-
Finite element analyses of pile load tests performed in the Yorktown formation, Newport News, Virginia
… finite element method is used in determining the load-capacity and behavior of a single concrete pile modeled after full scale instrumented test piles which were employed in the Tidewater area of Virginia. Specifically, this report describes the subsurface conditions and full scale pile tests that …
-
Evaluation of Scale Effects in Load-Displacement Response of Drilled Shafts Based on Field Load Tests
Load testing such as standard top-down or bi-directional tests are widely accepted practices that provide foundation designers with site-specific information about the nominal resistance of drilled shaft foundations. The application of load testing in drilled shaft foundations provides insight into …
-
Slab-on-girder prestressed concrete bridges: linear and nonlinear finite element analysis and experimental load tests
… contribute to the overall distribution of live loads in bridges. Cast-in-place concrete intermediate diaphragms were investigated in this study in order to assess their load distribution effectiveness in prestressed concrete I-girder bridges. Finite element packages (Ansys and GT STRUDL) were …
-
Efeito do tempo de carregamento e a questão dos recalques de estacas em provas de carga
… pile performance when subjected to vertical load tests. The most usual types of piles are investigated. Load tests are analysed with the purpose of verifying the influence of the loading rate on settlements and on failure loads. It is observed that a more rapid loading - or less rigorous …
-
Statnamic Lateral Load Testing and Analysis of a Drilled Shaft in Liquefied Sand
Three progressively larger statnamic lateral load tests were performed on a 2.59 m diameter drilled shaft foundation after the surrounding soil was liquefied using down-hole explosive charges. An attempt to develop p-y curves from strain data along the pile was made. Due to low quality and lack of …
-
Capacidade de carga de fundações submetidas a esforços verticais de tração
… since the early 60 decade. A great number of load tests - especially conducted for an important transmission line foundation project - have been performed on footings and piers, permitting the comparison of the application of the principal theories to residual gneiss. These load tests have …
-
The use of CPT for calculating axial capacity of drilled shafts
… two decades due to their ability to carry large loads economically. Current methods for calculating axial capacity of drilled shafts rely heavily on static methods. The cone penetration test is a simple, fast, and economical test that provides a continuous measurement of in-situ soil resistance …
-
Testing of the suspended vehicle system scale model
… of both static and dynamic phases. Static tests were used to determine the behavior of the structure to dead loads. Free vibration tests indicated the fundamental structural frequencies, and moving load tests measured the response of the system to moving vehicle conditions. Although no …
-
Performance of a Bridge Deck with Glass Fiber Reinforced Polymer (GFRP) Bars as the Top Mat of Reinforcement
… 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 and …
-
Review of CPT based design methods for estimating axial capacity of driven piles in siliceous sand
… measured cone tip resistance. Large scale pile load tests, performed in the last two decades, have shown better agreement with recent CPT based design criteria, than with conventional American Petroleum Institute (API) earth pressure approach design guidelines. The CPT based design methods …
-
Full-Scale-Lateral-Load Test of a 1.2 m Diameter Drilled Shaft in Sand
… interaction models associated with laterally loaded deep foundations have typically been based on load tests involving relatively small diameter foundations. The lateral soil resistance for larger diameter foundations has been assumed to increase linearly with diameter; however, few, if any …
-
Response of suction caissons in soft clay under vertical and horizontal loading for tidal energy converter applications
… foundations must be thoroughly understood. TEC loading conditions will primarily be cyclic with the static loads resulting from the dead weight of the structure. The cyclic loads will have various components with periods up to approximately 24 hours and be strongly correlated to the tidal …
-
Internal hydrogen-induced subcritical crack growth in stainless steels
… a molten salt electrolyte. Constant strain rate tests and sustained load tests were performed in air at temperatures from 0 to 50$\sp\circ$C with hydrogen contents up to 41 wt. ppm. The electrical potential drop method with optical calibration was used to monitor the crack growth position, …
-
Effect of engine operating parameters and fuel characteristics on diesel engine emissions
… of 25% S-1 with a balance of 15 or 400 PPM D2. Tests were conducted with three engine operating conditions: 1682 RPM, 474 kPa BMEP; 2011 RPM, 1000 kPa BMEP; 2011 RPM, 1400 kPa BMEP. It was found that FT fuel reduced NOx emissions 19% in low load tests, but alone had little effect in higher load …
-
Seismic Damage Analysis and Design of Unreinforced Masonry Buildings
… effects of excessive deformation and repeated loadings. Model parameters for unreinforced brick masonry were obtained from cyclic load tests of masonry wall specimens. A random vibration method using a nonlinear hysteretic restoring force model to describe the load-deformation behavior of …
-
Behavior and Strength of Simple and Continuous Span Re-Entrant Composite Slabs
… through three Series of composite slab load tests. The test specimens in this study were constructed to simulate actual field construction of composite slabs as part of reinforced concrete structures. The results of this experimental study are analyzed using methods given in the ASCE …
-
Structural Performance of Fiber-Reinforced and Welded Wire Fabric-Reinforced Concrete Composite Slabs
… Slabs were subjected to flexural strength tests and concentrated load tests while monitoring load, steel deck strains, and deflections. Test results obtained from this test program were also compared to results from a similar test program conducted in 2001. Tests were also performed to …
-
Field Test of a Bridge Deck with Glass Fiber Reinforced Polymer Bars as the Top Mat of Reinforcement
… of this research project was to perform live load tests on a bridge deck with GFRP reinforcement in the field under service conditions. The strains and deflections in the span reinforced with GFRP in the top mat were recorded under a series of truck crossings, and these were compared to the …
Page 1 of 5