基于PKPM对多伸缩缝结构的建模方法的研究

Study on Modeling Methods of Multi-Expansion Joints Structure Calculated with PKPM

本文主要对多伸缩缝结构在利用PKPM系列软件进行结构建模计算时的各种方法进行阐述,包含对整个工程模型一次性全部输入的整体建模和按照伸缩缝把结构模型分开输入的分开建模。并通过一个工程实例对两种建模方法的计算结果和配筋信息进行对比,发现并不相同,整体建模计算时的配筋结果比分开建模计算时要大一些。通过对比分析两种不同的计算方法得到的结果和配筋信息,发现分开建模是更准确的建模方法。本文的研究为设计人员计算多伸缩缝结构时提供一个参考。

Two modeling methods of multi-expansion joints structure calculated with PKPM are discussed in this paper, which includes holistic modeling, modeling with all the data in one time and successive modeling, modeling according to expansion joints successively. By comparison of the accounting results in a real situation, especially the reinforcing bars data, it is discovered that the reinforcing bars are used more in the holistic modeling than in the successive modeling and thus the successive modeling is more accurate than holistic modeling. Therefore, this paper can serve as a reference for designers in multi-expansion joints calculation.