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钢管与核心混凝土之间的紧箍力是钢管混凝土结构和构件研究中十分重要的问题。以前,国内外无人实际测量出紧箍力的数值。本文作者分析了实测紧箍力的重要意义,探讨了间接测定方法存在的问题,首次提出了直接测定紧箍力的可行方法—液压比拟法。同时,文中较详细地介绍了这种方法的基本原理、试验装置、试验过程及测定实例。
The tight hoops between the steel tube and the core concrete is a very important issue in the study of the concrete-filled steel tube structure and its components. In the past, no one at home and abroad actually measured the value of the tightening force. The author of this paper analyzes the significance of the measured tight hooping force, discusses the problems of the indirect measurement method, and proposes a feasible method for the direct determination of the hooping force for the first time—a hydraulic comparison method. At the same time, the basic principle, test device, test process and determination example of this method are introduced in detail in this paper.