三角形桁架式桩腿是目前自升式平台主流采用的一种桩腿形式。三角形桁架式桩腿发源于3桩腿自升式钻井平台，其桩腿朝向与三角形主船体一致。随着自升式平台采用矩形或船型主船体，桩腿在主船体中存在不同的朝向布置。本计算分析基于简化力学模型，以某四桩腿自升式平台为例，利用有限元软件，对4种典型桩腿朝向布置进行计算分析，得到了三角形桁架式桩腿的受力特点及规律，提出优化布置建议，为后续自升式平台的研发提供参考。
Currently, triangular truss leg is a widely-used type of leg for self-elevated platform. Triangular truss leg originated from self-elevated drilling rig with 3 legs and the orientation of legs is the same as the triangular platform. With the adoption of rectangular and hull-shaped hull for self-elevated platform, the leg orientation varies from different platforms. Based on simplified engineering mechanics analysis, taking a self-elevated platform for example, this study uses FEA software to analyze 4 types of leg orientation arrangement. The loads feature and pattern was gained and optimization suggestion was proposed to provide reference for the self-development and innovation of subsequent self-elevated platform.
2025,47(4): 148-153 收稿日期：2024-4-30
DOI：10.3404/j.issn.1672-7649.2025.04.024
分类号：U674.35
作者简介：钱笠君(1987-),男,硕士,高级工程师,研究方向为船舶结构设计
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