Dynamic load testing of a modular truss bridge using military vehicles

2022 ◽  
Vol 254 ◽  
pp. 113822
Author(s):  
Brandon Pinkney ◽  
Marc-André Dagenais ◽  
Gordon Wight
Keyword(s):  
Dynamic Load ◽  
Load Testing ◽  
Military Vehicles ◽  
Truss Bridge

Semi-empirical methods versus dynamic load testing in piles

Geotecnia ◽  
2015 ◽  
Vol 135 ◽  
pp. 89-113
Author(s):  
Jean Felix Cabette ◽  
◽  
<br>Heloisa Helena Silva Gonçalves ◽  
<br>Fernando Antônio Marinho ◽  
◽  
...  
Keyword(s):  
Dynamic Load ◽  
Load Testing ◽  
Empirical Methods ◽  
Semi Empirical

Driven cast-in-situ pile capacity: insights from dynamic and static load testing

2021 ◽  
Author(s):  
Kevin N. Flynn ◽  
Bryan A. McCabe
Keyword(s):  
Dynamic Load ◽  
Shear Stresses ◽  
Load Testing ◽  
Pile Capacity ◽  
Compression Load ◽  
Shaft Resistance ◽  
Pile Installation ◽  
Cast Concrete ◽  
Load Tests

Driven cast-in-situ (DCIS) piles are classified as large displacement piles. However, the use of an oversized driving shoe introduces additional complexities influencing shaft resistance mobilisation, over and above those applicable to preformed displacement piles. Therefore, several design codes restrict the magnitude of shaft resistance in DCIS pile design. In this paper, a series of dynamic load tests was performed on the temporary steel driving tubes during DCIS pile installation at three UK sites. The instrumented piles were subsequently subjected to maintained compression load tests to failure. The mobilised shear stresses inferred from the dynamic tests during driving were two to five times smaller than those on the as-constructed piles during maintained load testing. This was attributed to soil loosening along the tube shaft arising from the oversized base shoe. Nevertheless, the radial stress reductions appear to be reversible by the freshly-cast concrete fluid pressures which provide lower-bound estimates of radial total stress inferred from the measured shear stresses during static loading. This recovery in shaft resistance is not recognised in some European design practices, resulting in conservative design lengths. Whilst the shaft resistance of DCIS piles was underpredicted by the dynamic load tests, reasonable estimates of base resistance were obtained.

Site Resonance Frequency Assessment through Dynamic Load Testing (DLT): Early Results of a Test Carried out in the Experimental Site of Fivizzano (MS, Italy)

2011 ◽  
Author(s):  
Mario Luigi Rainone ◽  
Sara Di Benedetto ◽  
Pasquale Greco ◽  
Patrizio Signanini ◽  
Patrizio Torrese
Keyword(s):  
Resonance Frequency ◽  
Dynamic Load ◽  
Load Testing ◽  
Experimental Site ◽  
Early Results

scholarly journals Empirical Formulas to Predict the Axial Capacity of Driven Piles Using in-Situ Dynamic Load Testing Data

2019 ◽  
Vol 9 (2) ◽  
pp. 129-134
Author(s):  
Anis Shatnawi ◽  
◽  
Wassel AL Bodour ◽  
Mu’tasim Abdel-Jaber ◽  
Bashar Tarawneh
Keyword(s):  
Dynamic Load ◽  
Load Testing ◽  
Driven Piles ◽  
Empirical Formulas ◽  
Axial Capacity ◽  
Testing Data
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