5 5. DOCUMENTATION

The tests were extensively documented with drawings, photographs, and videotape. The acceleration and displacement histories of the shaking table during each test were recorded digitally. Still photographs were taken to record the damage to each wall of each model after every test.

The dynamic motion of each test model was recorded on videotape. Four video cameras were activated at the four corners of the model to record the motion of each of the four walls. It was important to record the dynamic motions of the models from all angles to be able to study the motion in detail after the testing was completed. During the test sequence the cracks were numbered as they appeared, and the number of each crack coincided with the test number in which the crack occurred.