... Copyright Computers and Structures, Inc., 1978-1997 The CSI Logo is a registered trademark of Computers and Structures, Inc SAP2000 is a registered trademark of Computers and Structures, Inc Windows ... Group Name ROOF 2ND COLS FRCOLS BRCOLS BRACE1 BRACE2 FRMGIRD BASE Description All roof level joints, frame elements and shell elements All second level joints, frame elements and shell elements All ... trademark of Microsoft Corporation DISCLAIMER CONSIDERABLE TIME, EFFORT AND EXPENSE HAVE GONE INTO THE DEVELOPMENT AND DOCUMENTATION OF SAP2000 THE PROGRAM HAS BEEN THOROUGHLY TESTED AND USED...