Influence of the Soil-Structure Interaction on the Design of Steel-Braced Building Foundation

Azarbakht, Alireza; Ashtiany, Mohsen Ghafory

doi:10.1063/1.2963888

Cited by 3 publications

(1 citation statement)

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“…Numerous studies have been carried out regarding the effects of SSI on different structures and calculating their damage index. Some of this research has been accomplished on reinforced concrete (RC) structures [24][25][26][27][28] and some on the steel structures [29][30][31][32]. Only few studies have been dedicated to the investigation of the effects of the length of the link beam on the damage index in eccentrically braced steel frame systems.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Damage Index of Eccentrically-Braced Frames according to Link Beam’s Length with Soil-Structure Interaction Effects

Rahami

Fadaee

Hezaveh

2021

NMCE

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Due to features such as ductility and stiffness, the eccentrically-braced frames(EBF) have a good performance against seismic loads and have been considered by designers. Previous studies indicate that the soil underlying the structures affects their seismic behavior. In the case of EBFs, the link beam plays an imporatnt role in the seismic behavior of the system and thus, investigation into the effect of the geometric characteristics of the link on general behavior of the system, would be of utmost significance. In this respect, length of the link beam has been considered as the main variable in this study, taking the effects of soil-structure interaction (SSI) into account.Dynamic time-history analyses considering different lengths for the link beam with and without inclusion of the SSI, have been conducted, aiming to obtain damage indices. The results indicate that as the length decreases, in retrun, damage index (DI)increases and vice versa. Additionally, it was found that when the ratio of length of the link to that of the bay is approximately equal to 0.5, the DI values drop significantly. Also, results showed that considering the effect of SSI, applied general changes on the value of D, and showed different effects at various lengths of the link beams.

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Section: Introductionmentioning

confidence: 99%

Evaluation of Damage Index of Eccentrically-Braced Frames according to Link Beam’s Length with Soil-Structure Interaction Effects

Rahami

Fadaee

Hezaveh

2021

NMCE

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A simplified method in comparison with comprehensive interaction incremental dynamic analysis to assess seismic performance of jacket-type offshore platforms

Zolfaghari

Ajamy

Asgarian

2015

Int J Adv Struct Eng

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The primary goal of seismic reassessment procedures in oil platform codes is to determine the reliability of a platform under extreme earthquake loading. Therefore, in this paper, a simplified method is proposed to assess seismic performance of existing jacket-type offshore platforms (JTOP) in regions ranging from near-elastic to global collapse. The simplified method curve exploits well agreement between static pushover (SPO) curve and the entire summarized interaction incremental dynamic analysis (CI-IDA) curve of the platform. Although the CI-IDA method offers better understanding and better modelling of the phenomenon, it is a time-consuming and challenging task. To overcome the challenges, the simplified procedure, a fast and accurate approach, is introduced based on SPO analysis. Then, an existing JTOP in the Persian Gulf is presented to illustrate the procedure, and finally a comparison is made between the simplified method and CI-IDA results. The simplified method is very informative and practical for current engineering purposes. It is able to predict seismic performance elasticity to global dynamic instability with reasonable accuracy and little computational effort. Keywords Uncertainty Á Ground motion records Á Comprehensive interaction incremental dynamic analysis (CI-IDA) Á Static pushover analysis (SPO) Á Jacket-type offshore platform & A.

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Effect of uncertainty on the seismic behaviour of fixed pile-founded offshore platforms

Omrani

Amirabadi

Sharifi

2022

Ships and Offshore Structures

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Influence of the Soil-Structure Interaction on the Design of Steel-Braced Building Foundation

Cited by 3 publications

References 0 publications

Evaluation of Damage Index of Eccentrically-Braced Frames according to Link Beam’s Length with Soil-Structure Interaction Effects

Evaluation of Damage Index of Eccentrically-Braced Frames according to Link Beam’s Length with Soil-Structure Interaction Effects

A simplified method in comparison with comprehensive interaction incremental dynamic analysis to assess seismic performance of jacket-type offshore platforms

Effect of uncertainty on the seismic behaviour of fixed pile-founded offshore platforms

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