Application of steel-concrete composite pile foundation system as energy storage medium

IF 2.2 4区工程技术 Q2 ENGINEERING, CIVIL Structural Engineering and Mechanics Pub Date : 2021-01-01 DOI:10.12989/SEM.2021.77.6.753

A. Agibayeva, D. Lee, H. Ju, Dichuan Zhang, J. Kim

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引用次数: 6

Abstract

Feasibility studies of a reinforced concrete (RC) deep pile foundation system with the compressed air energy storage (CAES) technology were conducted in previous studies. However, those studies showed some technical limitations in its serviceability and durability performances. To overcome such drawbacks of the conventional RC energy pile system, various steel-concrete composite pile foundations are addressed in this study to be utilized as a dual functional system for an energy storage medium and load-resistant foundation. This study conducts finite element analyses to examine the applicability of various composite energy pile foundation systems considering the combined effects of structural loading, soil boundary forces, and internal air pressures induced by the thermos-dynamic cycle of compressed air. On this basis, it was clearly confirmed that the role of inner and outer tubes is essential in terms of reliable storage tank and better constructability of pile, respectively, and the steel tubes in the composite pile foundation can also ensure improved serviceability and durability performances compared to the conventional RC pile system.

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钢-混凝土复合桩基础体系作为储能介质的应用

在以往的研究中，对钢筋混凝土(RC)深桩基础系统进行了压缩空气储能(CAES)技术可行性研究。然而，这些研究表明，其适用性和耐久性性能存在一些技术局限性。为了克服传统钢筋混凝土能量桩体系的这些缺陷，本文研究了多种钢-混凝土复合桩基础，将其作为储能介质和抗荷载基础的双重功能体系。考虑结构荷载、土体边界力和压缩空气热力循环引起的内部空气压力的综合作用，本文通过有限元分析来检验各种复合能源桩基础体系的适用性。在此基础上，明确了内管和外管分别在可靠的贮槽和更好的桩可施工性方面的作用，并且复合桩基础中的钢管也比常规RC桩体系具有更高的使用性能和耐久性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Structural Engineering and Mechanics 工程技术-工程：机械

CiteScore

3.80

自引率

18.20%

发文量

审稿时长

11 months

期刊介绍： The STRUCTURAL ENGINEERING AND MECHANICS, An International Journal, aims at: providing a major publication channel for structural engineering, wider distribution at more affordable subscription rates; faster reviewing and publication for manuscripts submitted; and a broad scope for wider participation. The main subject of the Journal is structural engineering concerned with aspects of mechanics. Areas covered by the Journal include: - Structural Mechanics - Design of Civil, Building and Mechanical Structures - Structural Optimization and Controls - Structural Safety and Reliability - New Structural Materials and Applications - Effects of Wind, Earthquake and Wave Loadings on Structures - Fluid-Structure and Soil-Structure Interactions - AI Application and Expert Systems in Structural Engineering. Submission of papers from practicing engineers is particularly encouraged.