scholarly journals Optimal Multi-Type Sensor Placement for Structural Identification by Static-Load Testing

Sensors ◽  
2017 ◽  
Vol 17 (12) ◽  
pp. 2904 ◽  
Author(s):  
Numa Bertola ◽  
Maria Papadopoulou ◽  
Didier Vernay ◽  
Ian Smith
Keyword(s):  
Static Load ◽  
Sensor Placement ◽  
Structural Identification ◽  
Load Testing ◽  
Static Load Testing

Highway 400 precast concrete inlay panel project: Instrumentation plan, installation, and preliminary results

2018 ◽  
Vol 45 (10) ◽  
pp. 889-898 ◽  
Author(s):  
Daniel Pickel ◽  
Susan Tighe ◽  
Warren Lee ◽  
Rico Fung
Keyword(s):  
Static Load ◽  
Asphalt Pavement ◽  
Precast Concrete ◽  
Earth Pressure ◽  
Load Testing ◽  
Dry Conditions ◽  
Rehabilitation Strategy ◽  
Support Reactions ◽  
Precipitation Events ◽  
Static Load Testing

The Ministry of Transportation of Ontario was interested in a rehabilitation strategy that could be used to address deep-seated rutting issues encountered on its 400-series highways. A precast concrete inlay panel (PCIP) rehabilitation design was developed and constructed involving the installation of precast panels into partially-milled asphalt pavement. Sub-surface instrumentation was installed at the PCIP–asphalt interface including earth pressure cells and moisture sensors installed in six instrumentation clusters. This instrumentation has been monitored to gather information regarding the PCIP trial installation. Readings from the moisture sensors indicate that water penetrates beneath the PCIPs in precipitation events, though these moisture levels recede under dry conditions, indicating that the water can exit the sub-slab area. Static load testing using a fully-loaded gravel truck was used to determine the different support reactions caused by different loading configurations. Higher loads were generally found beneath the joints in the two loading situations studied.

Resistance of Plastic Ophthalmic Lenses: The Effect of Base Curve on Different Materials During Static Load Testing

2001 ◽  
Vol 78 (7) ◽  
pp. 518-524 ◽  
Author(s):  
MOHAMADOU LAMINE DIALLO ◽  
PIERRE SIMONET ◽  
BENOIT FRENETTE ◽  
BERNARD SANSCHAGRIN
Keyword(s):  
Static Load ◽  
Load Testing ◽  
Base Curve ◽  
Static Load Testing

scholarly journals Bi-Directional Static Load Tests of Pile Models

2020 ◽  
Vol 10 (16) ◽  
pp. 5492
Author(s):  
Michał Baca ◽  
Włodzimierz Brząkała ◽  
Jarosław Rybak
Keyword(s):  
Bearing Capacity ◽  
Static Load ◽  
Load Testing ◽  
Pile Capacity ◽  
Pile Shaft ◽  
Load Tests ◽  
S Curve ◽  
Definition Of ◽  
Standard Tests ◽  
Static Load Testing

This work examined a new method of bi-directional static load testing for piles, referencing the Osterberg test. Measurements were taken, on a laboratory scale, using six models of piles driven into a box filled with sand. This method allowed for separate measurements of pile base and pile shaft bearing capacities. Based on the results, the total pile bearing capacity and equivalent Q–s diagrams were estimated. The results obtained show that the structure of the equivalent curve according to Osterberg is a good approximation of the standard Q–s curve obtained from load tests, except for loads close to the limit of bearing capacity (those estimates are also complicated by the inapplicability and ambiguity of a definition of the notion of limit bearing capacity); the equivalent pile capacity in the Osterberg method represents, on average, about 80% of the capacity from standard tests.

scholarly journals Calculation of Pile Side Friction by Multiparameter Statistical Analysis

2019 ◽  
Vol 2019 ◽  
pp. 1-12 ◽  
Author(s):  
Zhijun Zhou ◽  
Yaqin Dong ◽  
Peijun Jiang ◽  
Dandan Han ◽  
Tong Liu
Keyword(s):  
Statistical Analysis ◽  
Static Load ◽  
Load Test ◽  
Load Testing ◽  
Analysis Method ◽  
Static Load Test ◽  
Statistical Analysis Method ◽  
Loess Region ◽  
Side Friction ◽  
Static Load Testing

In this paper, a static load test and a multiparameter statistical analysis method are used to study the value of pile side friction in different soil layers in a loess region. Currently, static load testing is the most commonly used method to determine the bearing capacity of pile foundation. During the test, a vertical load is applied at the top of the pile, the data under each load level are recorded, and a Q-S curve is drawn to obtain the ultimate bearing capacity of a single pile. Reinforcement stress gauges are installed at different sections of the pile body, and then the axial force and the pile side friction of each section are calculated. Few studies have investigated the calculation of pile side friction in different soil layers using the multiparameter statistical analysis method. Obtaining accurate results using this method will provide an important supplement to the calculation of pile side friction and will also be conducive to the development of theoretical calculation of pile side friction. Therefore, taking Wuding Expressway project in loess region as an example, the lateral friction resistance of six test piles is studied through static load testing and multiparameter statistical analysis. The multiparameter statistical analysis method is compared with the static load test results, and the error is controlled within 20%. The results show that the calculation results of multiparameter statistical analysis essentially fulfill engineering requirements.

MODAL IDENTIFICATION OF STRUCTURES DURING STATIC LOAD TESTING: INTERACTION EFFECTS

2020 ◽  
Author(s):  
Antolin Lorenzana ◽  
Alvaro Magdaleno ◽  
Tomislav Jarak ◽  
Roberto Martinez ◽  
Antonio Balmori ◽  
...  
Keyword(s):  
Static Load ◽  
Interaction Effects ◽  
Modal Identification ◽  
Load Testing ◽  
Static Load Testing
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