Patent ID: 6675539
Filing Date: 2004-01-13
Classification: E04B,E04F,E04H

Abstract:
A seismic roof motion-absorbing gap cover assembly, comprisingan elongated y-axis slideway affixed to a building unit B on one side of an motion-absorbing gap and extending along a y-axis longitudinally parallel to a center plane of the motion-absorbing gap, a y-axis slider received on the y-axis slideway for sliding movement, a plurality of roof support members secured to the y-axis slider in spaced apart relation against horizontal movements relative to the y-axis slider, and a roof having one end affixed to a building unit A on the other side of the motion-absorbing gap, spanning the motion-absorbing gap, and supported on the roof support members by a plurality of elongated spaced-apart x-axis slide members for movement relative to the roof support members along an x-axis perpendicular to the center plane of the motion-absorbing gap, each x-axis slide member having a length such that it is supported by the roof support member throughout a range of displacements in the x-axis direction of the building units between maximum and minimum design displacements in an earthquake from a neutral position, wherein each x-axis slide member is a member of a framework of the roof and is affixed to the building unit A at one end and extends continuously across the motion-absorbing gap) and beyond the roof support member by a distance not less than a maximum design displacement in an earthquake.