Nghiên cứu sự làm việc của bể chứa chất lỏng chịu tác dụng của tải trọng nổ

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Tác giả: HỮU HÀ NGUYỄN, THẾ HÙNG THÂN, NGỌC ANH VŨ, NGỌC QUANG VŨ

Ngôn ngữ: vie

Ký hiệu phân loại:

Thông tin xuất bản: Tạp chí Xây dựng, 2023

Mô tả vật lý: tr.143

Bộ sưu tập: Metadata

ID: 337207

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During the exploitation and use of the storage tanks, they are often subjected to dynamic loads such as earthquakes and explosions. The design and construction of specific works such as liquid storage tanks subject to special effects (earthquakes, explosions) with high accuracy and safety has attracted the attention of scientists. However, the calculation of the explosive load and the ability to withstand the bursting wave load for the liquid tank is complicated and expensive. Therefore, the study, calculation and simulation of the effect of explosive loads on the liquid tank is a practical issue that needs to be considered, which will help reduce the cost of testing as well as damage to people and property. This paper presents a method of calculating and simulating the structure of a liquid storage tank under the impact of explosive waves using Abaqus software. Through numerical tests, the influence of load determination methods, the influence of surface waves and liquid level height on the calculation results of the liquid storage tank structure has been studied. Keywords: Independent water tank
explosive load
simulation by Abaqus
finite element methodTrong quá trình khai thác và sử dụng các bể chứa thường phải chịu tác dụng của các loại tải trọng động như động đất, nổ. Việc thiết kế xây dựng các công trình đặc thù như bể chứa chất lỏng chịu các tác dụng đặc biệt (động đất, nổ) với độ chính xác và an toàn cao đã lôi cuốn sự quan tâm của các nhà khoa học. Tuy nhiên, tính toán tải trọng nổ và thử nghiệm khả năng chịu tác dụng của tải trọng sóng nổ đối với bể chứa chất lỏng là vấn đề phức tạp. Vì vậy việc nghiên cứu tính toán, mô phỏng tác dụng của tải trọng nổ lên bể chứa chất lỏng là vấn đề thiết thực, cần được xem xét, điều này sẽ giúp giảm chi phí thử nghiệm cũng như thiệt hại về người và của. Bài báo trình bày phương pháp tính toán và mô phỏng kết cấu bể chứa chất lỏng chịu tác dụng của sóng nổ bằng phần mềm Abaqus. Thông qua các thử nghiệm số nghiên cứu ảnh hưởng của các phương pháp xác định tải trọng, ảnh hưởng của sóng bề mặt và chiều cao mực chất lỏng đến kết quả tính toán kết cấu bể chứa chất lỏng. Từ khóa: Bể nước độc lập
tải trọng nổ
mô phỏng bằng Abaqus
phương pháp phần tử hữu hạn.

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