A three-dimensional animation system for seismic response of multistory structures

✍ Scribed by M. G. Konicki; H. Adeli

• Publisher: John Wiley and Sons
• Year: 1997
• Tongue: English
• Weight: 589 KB
• Volume: 8
• Category: Article
• ISSN: 0899-9457
• DOI: 10.1002/(sici)1098-1098(1997)8:3<313::aid-ima9>3.0.co;2-d

✦ Synopsis

A three-dimensional animation system has been develnodes of the structure (normally beam-column joints). The effect oped for visualizing the dynamic response of multistory structures of the inertia forces in the dynamic analysis is described by the subjected to earthquake excitations, using the IRIX operating system concentrated masses. The number of degrees of freedom of the and implemented in Graphics Library (GL) Windows and ANSI C promodel is defined by the total number of displacement components, gramming language. The animation system includes three-dimencorresponding to the directions in which the concentrated masses sional multistory frames with flexible floors. The input can be any vibrate.

accelerogram data (ground acceleration record) due to any real or Floors are assumed to be flexible and axial, and transverse artificial earthquake. The user of the system can select the input padeflections of each individual beam and column are taken into rameters of the structure, such as the number of bays, stories, bay account (Fig. ). Each node has six degrees of freedom. The width, story height, etc., and view their effect on the dynamic behavior of the structure. Sample outputs are presented for two irregular high-dynamic equation of motion of a structure subjected to ground rise building structures. The graphics interface is linked to the dynamic acceleration is expressed in matrix form as [4] analysis program. It computes the required displacements to be inputted back into the graphics interface which plots the deflected MuF / Cuh / Ku Å 0MIuF g

(1)

profile of the structure dynamically.