Phân tích công nghệ và tính toán thiết kế thi công kết cấu vòm chéo có tỷ lệ chiều cao đặc biệt lớn ở cầu Phật Tích, tỉnh Bắc Ninh

0 Người đánh giá. Xếp hạng trung bình 0

Tác giả: HÀ HOÀNG

Ngôn ngữ: vie

Ký hiệu phân loại:

Thông tin xuất bản: Tạp chí Xây dựng, 2024

Mô tả vật lý: tr.42

Bộ sưu tập: Metadata

ID: 381157

Thêm vào giỏ Liên kết toàn văn

Công trình cầu Phật Tích bắc qua sông Đuống, tỉnh Bắc Ninh được thiết kế dạng vòm - dây cáp treo với kết cấu đặc biệt vòm chéo trên mặt bằng, nâng đỡ hệ mặt cầu bằng bê tông cốt thép dự ứng lực (BTCT DƯL). Do yêu cầu về kiến trúc, mỹ quan nên các vòm được thiết kế với tỷ lệ chiều cao/chiều dài nhịp rất lớn dẫn tới những khó khăn, phức tạp trong thiết kế và công nghệ xây dựng. Quá trình triển khai thi công xây dựng cầu đã phải phân tích so sánh nhiều phương án công nghệ khác nhau để chọn ra phương án khả thi, đảm bảo chỉ tiêu kinh tế-kỹ thuật và an toàn. Bài báo giới thiệu quá trình phân tích, lựa chọn công nghệ và một số nội dung tính toán chủ yếu ở bước thiết kế thi công cho việc xây dựng cầu Phật Tích. Từ khóa: Cầu vòm - dây cáp treo
dầm bê tông cốt thép dự ứng lực
phân tích lựa chọn công nghệ xây dựng
tính toán công trình phụ tạm phục vụ thi công.The Phat Tich bridge across the Duong River in Bac Ninh Vietnam is designed in the form of an arch - hanging cables with a special structure of diagonal arches on the ground, supporting the bridge deck system with pre-stressed reinforced concrete (PC). Due to architectural and aesthetic requirements, the bridge arch was designed with a high height ratio, leading to difficulties and complications in design and construction technology. During the bridge construction process, many different technological options had to be analyzed and compared to choose a feasible option, ensuring economic-technical and safety criteria. The article introduces the process of analysis, technology selection and some main calculation contents in the design and construction step for the construction of Phat Tich bridge. Keywords: Arch bridge - suspension cables
prestressed reinforced concrete beams
analysis and selection of construction technology
calculation of temporary auxiliary works for construction.

1. Đọc trực tuyến

1. Đọc trực tuyến

Tạo bộ sưu tập với mã QR