bridge bent shaking table validation tests

columnbridge bentof an existing CA highwaybridge; Inertia force at the cap beam with affixed 6 concrete blocks; Total of 12 GMs: A horizontal & the vertical components;Testsconducted using PEER 6-DOFshaking table.Shaking Table Test Testsetup 6

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Large-Scale Shake Table Test Verification of Bridge
Large-Scale Shake Table Test Verification of Bridge

Large-Scale Shake Table Test VerificationofBridge Condition AssessmentMethods Methods that identify structural component stiffness degradation by pre- and postevent low amplitude vibration measurements, based on a linear time-invariant (LTI) system model, are conceptually justified by examining the hysteresis loops the structural components experience in such vibrations.

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Shaking Table Tests of Curved Bridge considering Bearing
Shaking Table Tests of Curved Bridge considering Bearing

On the basis of theoretical research, the scholars have also carried out someshaking table testson isolatedbridges[18–24]. Most of these isolatedbridge testsare carried out for the straightbridge, and theshaking table testsfor isolated curvedbridgesare rarely studied.

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Blind Prediction Contest | Blind Prediction Contest
Blind Prediction Contest | Blind Prediction Contest

PEER is organizing a blind prediction contest for a bridge bent that consists of two self-centering resilient columns tested on the PEER UC Berkeley shaking table in October 2017. The specimen was subjected to increasing intensity shaking using several near-fault ground motion records until …

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Shaking table tests of the seismic response of a utility
Shaking table tests of the seismic response of a utility

Thetestswere conducted on ashaking tablewith a design load of 10 kN. The dimensions of theshaking tableare 1.2 m × 1.2 m (length × width), as shown in Fig. 1(a). The maximum accelerations of theshaking table, namely, 1.2 g and 2.0 g, were measured with loads of 10 kN and 5 kN, respectively.

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A Pre-Tensioned, RockingBridgeSystem for Accelerated
A Pre-Tensioned, RockingBridgeSystem for Accelerated

The seismic performance of the new system was evaluated with shaking table tests of a quarter-scale, two-span bridge. The maximum displacements of the bents were similar to those expected for a conventional bridge through the Design Level event (PGA=0.75g).

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Hysteretic behavior investigation of self-centering double
Hysteretic behavior investigation of self-centering double

Huangxulu LinkBridgeis a two-span continuousgirder bridgewith double-column rocking piers. Thebridgeand design details of the prototype rocking piers are shown in Fig. 1. As shown, external and replaceable energy dissipation devices and un-bonded post-tensioned tendons were …

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PEER Reports | Pacific Earthquake Engineering Research Center
PEER Reports | Pacific Earthquake Engineering Research Center

PEER 2008/06 -Shaking Table Testsand Numerical Investigation of Self-Centering Reinforced ConcreteBridgeColumns Hyung IL Jeong, Junichi Sakai, Stephen A. Mahin -Report PEER 2008/05 - Performance-Based Earthquake Engineering Design Evaluation Procedure forBridgeFoundations Undergoing Liquefaction-Induced Lateral Ground Displacement

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Development of theShaking Tableand Array System
Development of theShaking Tableand Array System

For instance, in 2008, Gao Wenjun madeshaking tablearraytestresearch of organic glass model on Chongqing ChaotianmenBridgewith the 2-subarray system of Chongqing Traffic Academy; conducted a multipointshaking tablearraytestresearch on concrete-filled steel tubes archbridgewith the 9-subarray system in Beijing University of Technology.

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Newbridge design improves earthquake resistance, reduces
Newbridge design improves earthquake resistance, reduces

Cyclic tests of the critical connections have demonstrated that the system can deform to drift ratios of around 6% with minimal damage and negligible residual displacements. Shaking table tests of a 25% scale, two-span bridge at the University of Nevada, Reno will be used to evaluate the dynamic performance of the system.

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Large-Scale ShakeTable TestVerification ofBridge
Large-Scale ShakeTable TestVerification ofBridge

Large-Scale ShakeTable Test Verification of Bridge Condition Assessment Methods... Two large-scale shaketableexperiments, one on a two-column reinforced concrete (RC)bridge bentspecimen, and the other on a two-span three-bentRCbridgespecimen were performed, in which specimens were subjected to earthquake ground motions with increasing ...

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Blind Prediction Contest | Blind Prediction Contest
Blind Prediction Contest | Blind Prediction Contest

PEER is organizing a blind prediction contest for abridge bentthat consists of two self-centering resilient columns tested on the PEER UC Berkeleyshaking tablein October 2017. The specimen was subjected to increasing intensityshakingusing several near-fault ground motion records until …

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A Pre-Tensioned, RockingBridgeSystem for Accelerated
A Pre-Tensioned, RockingBridgeSystem for Accelerated

The modifications to this procedure necessary to align with the objectives of the new system are straightforward and could be implemented within current design practice. A modeling strategy for the pre-tensionedbentsystem is also proposed and specific aspects of this approach are validated against the subassembly andshaking table testresults.

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Assessment of an Earthquake ResilientBridgewith
Assessment of an Earthquake ResilientBridgewith

Theshaking tableperformance of a quarter-scale, two-spanbridgeconstructed using the new system was compared with that of a conventional cast-in-placebridgewith similar geometry tested in 2005. The newbridgesystem was constructed in about 20% of the time needed for …

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Development of theShaking Tableand Array System
Development of theShaking Tableand Array System

The advantages and disadvantages of different control algorithms were contrastively analyzed. Typicalshaking table test, array systemtests, and experimental simulation materials were induced and contrasted. Internal existingshaking tableand array systemtest’s structural type, reduced scale, and model-material selection were provided.

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Hysteretic behavior investigation of self-centering double
Hysteretic behavior investigation of self-centering double

The limited damage and residual drift aftertestswere considered as its main advantage. Cheng verified this significant advantage byshaking table tests. Nonlinear elastic response has no or little energy dissipation in hysteresis, which also limits the force demands.

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NHERI @ UC San Diego -Completed Projects
NHERI @ UC San Diego -Completed Projects

Completed Projects. ... (RBSD) methodology, and finally a series of full-scaleshaking table testsof a 10-story CLT building specimen to validate the proposed design. The project will deliver a new tall building type capable of transforming the urban building landscape by addressing urbanization demand while enhancing resilience and ...

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Assessment of an Earthquake ResilientBridgewith
Assessment of an Earthquake ResilientBridgewith

Assessment of an Earthquake ResilientBridgewith Pretensioned, Rocking Columns. Close CCEER-16-03.pdf. View/ Download. Close ...

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Newbridge design improves earthquake resistance, reduces
Newbridge design improves earthquake resistance, reduces

Jul 01, 2014· Newbridge design improves earthquake resistance, reduces damageand speeds construction ... RockingBridge Bentfor ABC in Seismic Regions, Quake Summit 2014. ...Shaking table tests…

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The purpose of this study was to develop precast column details that are able to dissipate energy under seismic loads. Several innovative precast concrete columns were designed then studied experimentally on a shaketableand analyzed. Two types of precastbridgecolumns were studied, including segmental columns and monolithic columns.

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