“装配式钢筋混凝土管形通道”联合作用体系计算

Calculation of Joint Action System of Fabricated Reinforced Concrete Tubular Channels

"装配式钢筋混凝土管形通道"的结构型式和受力条件相对复杂。采用过程计算的方法,针对结构特点、技术标准、施工方案和施工流程,制定了计算阶段和计算项目,明确了各验算状况、作用效应组合的对应关系及相关系数取值。鉴于目前对此类结构体系的计算理论和计算模型研究还不尽深入,提出基于弹性初始状态的"有限元m法"计算方法和土压力动态计算方法,建立结构与土体联合作用体系计算模型并编制相应计算软件。通过模拟施工和使用阶段的通用结构计算及其状态验算,验证了结构设计的安全性。

The structure type and stress conditions of ＂ Fabricated reinforced concrete tubular channel＂ are relatively complicated. In this paper the method of process calculation is applied, according to the structure characteristics, technical standards, construction plan and construction process, the calculation stage and computing items are set up, made clear the corresponding relation and related coefficient for the checking condition, checking status and combination of action effectare. Due to inadequate study on the computational theory and calculation model of such structural system, this paper puts forward ＂finite element m method＂ calculation method and earth pressure dynamic calculation method based on initial elastic state, the calculation model for joint action system of structure and the soil is set up and relevant calculation software is worked out. Through the simulation construction and the calculation of general structure at the operation phase and its state checking, the security of the structure design is verified.