装配式人防外墙等效荷载作用下整体性能的分析

运用有限元模拟计算，分析了在等效荷栽及墙外侧土压力的共同作用下，装配式人防外墙结构的整体性能及结构的开口情况、灌注桩的应力分布、装配式墙板的应力以及应变分布等。研究发现：装配式人防外墙结构会产生开口，但开口值较小；桩体的受力比较连续，桩体混凝土沿土压力方向逐渐由受压为主变为受拉为主，墙体的上下端面应力比较集中。结果表明，本文的研究成果对装配式人防外墙结构的设计和施工实践具有指导意义。

Analysis of Integrated Performance of Fabricated Exterior Wall for Civil Air Defense under Equivalent Load

Under the equivalent load and the lateral earth pressure, the finite element method was usea to analyze the integrated performance and opening conditions of the fabricated exterior wall, the stress distribution in cast-in-place piles, and the stress and strain distributions in the fabricated exterior wall. The research has discovered that the fabricated exterior wall may have small openings, the loading on the cast-in-place pile is rather continuously distributed, the stress in the pile shaft concrete is dominated by the compressive state to the tensile state along the direction of earth pressure on the pile, and the stresses on the top and bottom edges are rather concentrated. The results of this paper have an important significance for guiding the design and construction of similar fabricated walls.