Design method of substation assembled concrete independent foundation

Journal Information

J. Hefei Univ. Tech. (Nat. Sci.), May.2024, Vol.47 No.5: 696-702

DOI: 10.3969/j.issn.1003-5060.2024.05.019

Authors

CHEN Cheng $ ^{1} $, AO Bin $ ^{2} $, GUAN Xinpeng $ ^{3} $, YU Fei $ ^{4,5} $, ZHU Dong $ ^{4} $

(1. State Grid East Inner Mongolia Electric Power Co., Ltd., Hohhot 010010, China; 2. Anhui Huadian Engineering Consulting and Design Co., Ltd., Hefei 230061, China; 3. State Grid Tongliao Power Supply Company, Tongliao 028000, China; 4. School of Civil and Hydraulic Engineering, Hefei University of Technology, Hefei 230009, China; 5. Xinjiang Key Laboratory of Water Conservancy Engineering Safety and Water Disaster Prevention, Urumqi 830052, China)

Abstract and Keywords

Abstract: To further promote the modular construction of substation, the cast-in-place concrete independent foundation in substation project is used as a prototype to analyze its force characteristics and foundation form, and the assembled block and connection design of the foundation is carried out, and the bearing capacity and crack resistance of the designed assembled foundation is verified through ABAQUS finite element simulation and relevant specification formula. The results show that the design of the blocks is reasonable and can meet the requirements of factory fabrication, transportation and lifting; the prestress-shear key connection method is suitable for the assembled concrete foundation, and the designed prestressed tendons and shear keys meet the requirements of bending and shear bearing capacity and crack resistance of the foundation joint surface, and have a certain safety reserve.

Keywords: substation; independent foundation; assembled; prestressed; shear key

作者信息

陈城 $ ^{1} $，敖斌 $ ^{2} $，关新鹏 $ ^{3} $，于飞 $ ^{4,5} $，朱东 $ ^{4} $

（1. 国网内蒙古东部电力有限公司，内蒙古呼和浩特 010010；2. 安徽华电工程咨询设计有限公司，安徽合肥 230061；3. 国网通辽供电公司，内蒙古通辽 028000；4. 合肥工业大学土木与水利工程学院，安徽合肥 230009；5. 新疆水利工程安全与水灾害防治重点实验室，新疆乌鲁木齐 830052）

摘要和关键词

摘要: 为进一步推动变电站模块化建设,文章以变电站工程中现浇混凝土柱下独立基础为原型,分析其受力特点和基础形式,进行基础装配式分块和连接设计,并通过ABAQUS有限元模拟和相关规范公式验证所设计装配式基础是否满足承载力和抗裂要求。研究结果表明:分块设计方案较为合理,可以满足工厂制作方便、运输及吊装要求;预应力-抗剪键的连接方式适用于装配式基础,所设计的预应力筋和抗剪键满足基础接缝面的抗弯、抗剪承载力和抗裂要求,并且具有一定的安全储备。

关键词: 变电站；独立基础；装配式；预应力；抗剪键

Funding

2022年新疆水利工程安全与水灾害防治重点实验室研究资助项目（ZDSYS-YJS-2022-11）

合肥工业大学学报(自然科学版)

Navigation