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目前,将高层建筑结构划分为单片抗侧力结构,进行空间协同工作分析的矩阵位移法程序,仍是最为广泛应用的设计程序。它概念清晰,需要机器容量小。它的主要依据是《钢筋混凝土高层建筑结构设计与施工规定(JZl02—79)》和《工业与民用建筑抗震设计规范(TJ11—78)》。现就程序编制中的一些问题进行阐述。一、协同工作的基本公式。一般高层建筑具有空间工作特点,由于刚度中心与外荷载合力作用线往往不重合,宜采用双向协同的公式:
At present, the matrix displacement method, which divides high-rise building structures into monolithic anti-lateral structures and performs spatial collaborative analysis, is still the most widely used design procedure. It has a clear concept and requires a small machine capacity. Its main basis is “the regulations for the design and construction of reinforced concrete high-rise building structures (JZl02-79)” and the “Code for Seismic Design of Industrial and Civil Buildings (TJ11-78)”. We will now elaborate on some of the issues in programming. First, the basic formula of collaborative work. Generally high-rise buildings have spatial work characteristics. Since the centerline of the stiffness and the combined force of the external loads are often not coincident, a bidirectional and coordinated formula should be adopted: