Nonlinear Analysis for Investigating Seismic Performance of a Spun Pile-Column of Viaduct Structure

Q3 Engineering

Open Civil Engineering Journal Pub Date : 2023-07-01 DOI:10.28991/cej-2023-09-07-02

A. F. Setiawan, A. K. Santoso, M. F. Darmawan, A. D. Adi, S. Ismanti

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引用次数: 0

Abstract

Slab-on-pile SOP viaducts have been constructed on several highways and railways in Indonesia, but there are certain doubts about some practical structural seismic design concepts. Therefore, this study aims to investigate the seismic performance of a single spun pile column for the SOP viaduct using nonlinear analysis. The essential variables used include the effect of top pile reinforced concrete infill treatment, soil-pile structure interaction (SPSI), and different response modification factors (R). Moreover, the single spun pile column was designed as a macro model with a force-based beam-column element having a fiber section in the plastic hinge. The static pushover analysis and quasi-static cyclic were also conducted to determine the displacement limit state and the equal viscous damping, respectively. Furthermore, seven pairs of ground motion excitations were used to investigate seismic performance in line with ASCE 7-10 and ASCE 61-14. The results showed that the implementation of the top-pile reinforced concrete infill treatment slightly reduced seismic response but evoked more severe pile curvature in the embedded zone. In addition, the behavior and seismic performance were slightly better than those without treatment when considering the SPSI. This study recommends the spun pile column for the SOP viaduct with a response modification factor of 1.5 to avoid probable brittle failure occurrence under earthquake load. Doi: 10.28991/CEJ-2023-09-07-02 Full Text: PDF

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高架桥旋转桩柱结构抗震性能研究的非线性分析

桩上板SOP高架桥已经在印度尼西亚的几条高速公路和铁路上建成，但在一些实用的结构抗震设计概念上存在一定的疑问。因此，本研究旨在利用非线性分析方法研究SOP高架桥单桩柱的抗震性能。采用的基本变量包括顶桩钢筋混凝土填筑处理的影响、桩土结构相互作用(SPSI)和不同的响应修正因子(R)。并将单桩柱设计为塑性铰中具有纤维截面的力基梁柱单元的宏观模型。通过静力推覆分析和准静力循环，分别确定了位移极限状态和等粘滞阻尼。此外，根据ASCE 7-10和ASCE 61-14的要求，采用7对地震动激励对其抗震性能进行了研究。结果表明:桩顶钢筋混凝土填筑处理的实施对地震反应略有降低，但在预埋区引起了更严重的桩曲;此外，考虑SPSI时，其性能和抗震性能略优于未处理的结构。本研究建议SOP高架桥采用响应修正系数为1.5的旋桩柱，以避免地震荷载作用下可能发生的脆性破坏。Doi: 10.28991/CEJ-2023-09-07-02全文:PDF

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来源期刊

Open Civil Engineering Journal Engineering-Civil and Structural Engineering

CiteScore

1.90

自引率

0.00%

发文量

期刊介绍： The Open Civil Engineering Journal is an Open Access online journal which publishes research, reviews/mini-reviews, letter articles and guest edited single topic issues in all areas of civil engineering. The Open Civil Engineering Journal, a peer-reviewed journal, is an important and reliable source of current information on developments in civil engineering. The topics covered in the journal include (but not limited to) concrete structures, construction materials, structural mechanics, soil mechanics, foundation engineering, offshore geotechnics, water resources, hydraulics, horology, coastal engineering, river engineering, ocean modeling, fluid-solid-structure interactions, offshore engineering, marine structures, constructional management and other civil engineering relevant areas.