An experimental study on shaking table tests on models of a concrete gravity dam

Phansri, Bupavech; Charoenwongmit, Sumetee; Yooprasertchai, Ekkachai; Park, Kyungho; Warnitchai, Pennung; Shin, Donghun

doi:10.1007/s12205-014-1221-8

Cited by 10 publications

(8 citation statements)

References 22 publications

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“…Many experimental works on seismic damage behavior of concrete dams have been conducted in China and other countries over several decades. [19][20][21][22][23][24][25][26][27][28][29][30][31] It is worth mentioning that Y Chen et al 32 carried out the model failure test of the Shapai roller compacted concrete (RRC) arch in China and obtained the anticipated effect of induced joints to reduce tensile stress, cracking process, failure pattern, and mechanism of the arch dam, and confirmed the engineering design and construction of the arch dam, which survived the Wenchuan earthquake without suffering any damage.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation of a small-scaled model for overflow section of a high gravity dam on shaking table

Wang

Chen

Wei

et al. 2019

Advances in Mechanical Engineering

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A 203 m-high concrete gravity dam is a huge structure for which the dynamic responses, damage mechanism, and safety evaluation under an intense earthquake need to be investigated carefully and in detail. This article presents the results of the dynamic failure model test on the overflow section of the aforementioned dam. It presents the seismic characteristics, failure mode, and safety evaluation for the overflow section during a strong earthquake. Two models of the dam section have been tested on the shaking table to simulate earthquake effects in a laboratory. The first model considers the Chinese code seismic wave, while the second model considers the Wenchuan seismic wave, a natural wave. The peak ground acceleration (PGA) of the first crack during testing determines the seismic safety level of the dam, and the locations and forms of cracks at the end of testing indicate the vulnerable areas of the dam under two kinds of earthquake inputting. After the final analysis, the results of the experimental works for the overflow during an earthquake offer an important reference for engineering designers working on anti-seismic design.

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Section: Introductionmentioning

confidence: 99%

Experimental investigation of a small-scaled model for overflow section of a high gravity dam on shaking table

Wang

Chen

Wei

et al. 2019

Advances in Mechanical Engineering

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“…Although studies found that increasing the amount of PGA substantially increased the damage and fractures within the gravity dam body and decreased the gravity dam's tolerance to earthquakes with increasing fractures, the fracture form had a major effect on gravity dam crack resistance. As a result, the crack's form must be thoroughly examined in order to determine the dam's stability [17,19,[22][23][24][25][26][27][28][29][30][31]. When an Operating Basic Earthquake (OBE) happens, fractures of up to 200 mm long and 0.3 mm in width emerge, according to Aldemir et al [17].…”

Section: Data Collectionmentioning

confidence: 99%

Overall Review of Seismic Wave Affected on Gravity Dam

Jamel¹,

Irzooki²,

Al-Obaidi³

2021

IJDNE

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Under seismic activity, gravity dams may crack and slide, causing damage to their bodies, as well as losing structural strength and rigidity. Investigating the factors that affect seismic waves on the stabilization of gravity dams is focused on reviewing the most significant previous literature in the present study. The seismic that causes damage starts at the gravity dam's heel and progresses upstream; this damage was not affected by the type of foundation of gravity dam, not even material damping. Still, it was noticeably affected within the different frequencies and amplitudes. In contrast, the sliding is governed by the direction of the forces generated at a lower frequency value. Also, the maximum hydrodynamic pressure was observed beyond peak ground acceleration value, where its distribution was almost linear at 25% of reservoir depth, as the remaining lower part (represented by 75% of reservoir depth) shows a nonlinear inclination.

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“…A dynamic experiment of small-scale dam models needs to satisfy the following similarity requirements between the scaled model and prototype structure in the elastic stage of the structural. 3,5,26 The similarity between inertial force and elastic restoring force is…”

Section: Development Of Damage Similarity Theorymentioning

confidence: 99%

“…Aldemir et al 4 devised a seismic pseudo-dynamic testing method for a small-scale model of a concrete gravity dam. Phansri et al 5 discussed the shaking table tests for small-scale models of a concrete gravity dam to simulate the propagation mode of seismic cracks. Wang et al 6,7 conducted an experimental study in their seismic analysis of a high gravity dam with reinforcement on a shaking table with water.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Non-fully Similar Laws of Damage to an Arch Dam in Shaking Table Model Tests

Chen

Lundbäck

et al. 2020

Advances in Mechanical Engineering

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In order to overcome the defect that the general shaking table test can’t clarify the scale relationship between the prototype structure and the scale model in the damaged area based on the fully similar laws, we derived a method that can analyze the relationship between the prototype structure and the scale model in the damaged area based on non-fully similar lows and verified it. We selected the appropriate material (the emulation concrete material, ECM), which has a good scale relationship with the prototype material in the elastic stage, the crack appearance stage, and crack propagation stage (damage stage). We proposed some similar ratios to reveal the similar relationship between the prototype structure and the scale model in the elastic stage, the crack appearance stage, and the crack propagation stage. Especially, we proposed two similar ratios: cr and hr (deduced by the fracture toughness similarity requirements and the fracture energy similarity requirements, respectively) which can well reflect the similar relationship between the prototype structure and the scale model in the damaged area. In order to verify these ratios, we compared the results of the prototype structure numerical simulation with those of the shaking table test of the scale model. The results show that hr has higher accuracy for predicting the relationship between the prototype structure and the scale model in the damaged area.

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An experimental study on shaking table tests on models of a concrete gravity dam

Cited by 10 publications

References 22 publications

Experimental investigation of a small-scaled model for overflow section of a high gravity dam on shaking table

Experimental investigation of a small-scaled model for overflow section of a high gravity dam on shaking table

Overall Review of Seismic Wave Affected on Gravity Dam

Investigation of Non-fully Similar Laws of Damage to an Arch Dam in Shaking Table Model Tests

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