Dynamic response of structures subjected to pounding and structure–soil–structure interaction

Madani, B.; Behnamfar, Farhad; Riahi, Hossein Tajmir

doi:10.1016/j.soildyn.2015.07.002

Cited by 62 publications

(40 citation statements)

References 26 publications

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“…This contact law is more suited when the impact zone behaves elastically, and its size is quite limited compared with the size of the impacting bodies . Penalty like methods, such as classical gap elements composed of a spring in parallel with a damper, have also been used . Khatiwada et al carried out a comparative study between a linear viscoelastic impact element model and a Hertz contact law‐based model.…”

Section: Introductionmentioning

confidence: 99%

“…24 Penalty like methods, such as classical gap elements composed of a spring in parallel with a damper, have also been used. 8,[25][26][27] Khatiwada et al 14 carried out a comparative study between a linear viscoelastic impact element model and a Hertz contact law-based model. Comparison of numerical simulation results with experimental recorded displacement amplification of frames, with impacting slabs of rather regular shape, showed that the linear viscoelastic impact element provided the most satisfactory results.…”

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confidence: 99%

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Shake table tests of structures subject to pounding

Crozet

Politopoulos

Chaudat

2019

Earthq Engng Struct Dyn

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Summary Pounding between adjacent structures during earthquakes may significantly modify their response in terms of forces and displacements. In addition, it has a considerable influence on acceleration and thus on floor response spectra. Therefore, pounding may be unfavorable to the response of equipment. Despite extensive research in this field, the effects of pounding on structures are difficult to quantify accurately. This article presents results of shake table tests carried out on two representative scale adjacent structures subject to pounding. Besides investigating the effects of the gap between structures and the excitation signal, this study examines also the effect of tying the two structures together by means of rigid links to suppress pounding. The results of the experimental campaign are then compared with those of numerical simulations. Analyses and experimental results show good agreement regarding both impact forces and interstorey drifts.

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Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

Shake table tests of structures subject to pounding

Crozet

Politopoulos

Chaudat

2019

Earthq Engng Struct Dyn

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show abstract

“…Madani et al [17] considered different cases of 3-to 12-story adjacent structures for evaluating the effects of structural pounding and Structure-Soil-Structure Interaction (SSSI). Although they conducted a comprehensive study on the pounding phenomenon and SSSI effect, they did not consider the P-Delta effect in modeling.…”

Section: Introductionmentioning

confidence: 99%

Evaluation the P-Delta Effect on Collapse Capacity of Adjacent Structures Subjected to Far-field Ground Motions

2018

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In urban areas, adjacent structures can be seen in any insufficient distance from each other, because of economic and refusal of acquired minimum separation distance according to seismic previsions. Collapse capacity assessment of structures is one of the important objectives of performance-based seismic engineering. The purpose of this study is to consider the pounding phenomenon and P-Delta effect in seismic collapse capacity assessment of structures. For this purpose, 2-, 4-, 6- and 8-story adjacent structures with different conditions of separation distance among them, were modeled in the OpenSees software. Furthermore, Incremental Dynamic Analyses (IDAs) were performed using 78 far-field ground motion records to compute the collapse capacities of adjacent structures. The results obtained from IDAs for adjacent structures show that during pounding, taller structure reaches its collapse capacity earlier than shorter one. In addition, by considering the P-Delta effect and increasing the distance between adjacent structures, time of collapse and number of impacts increases. According to results, considering the P-Delta effect in modeling has significant influence in seismic collapse capacity assessment of pounding structures.

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“…Alamo et al [18] studied SSSI impacts on the responses of nearby piled structures under obliquely incident shear waves using BEM-FEM. Madani et al [19] addressed impact of soil flexibility (SSSI) on the resultant of pounding forces using Opensees.…”

Section: Introductionmentioning

confidence: 99%

Studies on Pounding Response Considering Structure-Soil-Structure Interaction under Seismic Loads

Liu

Lü

2017

Sustainability

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Pounding phenomena considering structure-soil-structure interaction (SSSI) under seismic loads are investigated in this paper. Based on a practical engineering project, this work presents a three-dimensional finite element numerical simulation method using ANSYS software. According to Chinese design code, the models of adjacent shear wall structures on Shanghai soft soil with the rigid foundation, box foundation and pile foundation are built respectively. In the simulation, the Davidenkov model of the soil skeleton curve is assumed for soil behavior, and the contact elements with Kelvin model are adopted to simulate pounding phenomena between adjacent structures. Finally, the dynamic responses of adjacent structures considering the pounding and SSSI effects are analyzed. The results show that pounding phenomena may occur, indicating that the seismic separation requirement for adjacent buildings of Chinese design code may not be enough to avoid pounding effect. Pounding and SSSI effects worsen the adjacent buildings' conditions because their acceleration and shear responses are amplified after pounding considering SSSI. These results are significant for studying the effect of pounding and SSSI phenomena on seismic responses of structures and national sustainable development, especially in earthquake prevention and disaster reduction.

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Dynamic response of structures subjected to pounding and structure–soil–structure interaction

Cited by 62 publications

References 26 publications

Shake table tests of structures subject to pounding

Shake table tests of structures subject to pounding

Evaluation the P-Delta Effect on Collapse Capacity of Adjacent Structures Subjected to Far-field Ground Motions

Studies on Pounding Response Considering Structure-Soil-Structure Interaction under Seismic Loads

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