values of maximum relative displacement and final relative displacement from the dynamic analysis of Building 2 for the conditions of Operation Greenhouse are also presented in Table 2.8. A comparison of the recorded end computed rebound for Building 2 shows that the com- puted rebound is generally smaller‘ tnan the actual. Owing to the discrepancy between computed and actual revound at Greenhouse, an empirical approach ts used to evaluate the amount of recovery. The final perm2nent deflections for shot Mike of Operation Ivy are ob tine¢ by subtracting the actual rebound observed during Table 2.3— COMPARISON OF RECORDED AND COMPUTED DEFLECTIONS FOR BUILDING 2 AT OPERATION GREENHOUSE Maximum story Final story deflection, ft Recorded Conputed Rebound, ft deflection, ft First Second Third Xs eT ¥ Yaw ys Ys Ya Xs Yaw: story sory story 0.135 0.133 9,403 0.417 0,262 0.256 0.080 0.059 0.120 0.289 90,140 0.152 0,075 0,074 0.283 0.128 9.122 0.104 Table 2.4—-COMPUTED MAXIMUM RELATIVE DEFLECTIONS, SHOT MIKE, OPERATION IVY, BIILDING 2 Maximum relative deflection for 0-sec me of rtsé, ft Overpressure Maximum relative deflection for 0.018-cee Ume of rise. ft First story Second story Third story ¥ u-%t yn-y ‘1 ¥o~7 Ve rN 8 16 +3 0.041 0,0b4 0,065 0.087 0.199 0.318 0.106 0,252 0.297 0.065 0.087 OAS 9,523 0.246 9,282 4 18 37 0.165 0.256 O.518 0.488 0.526 0.723 0.324 0,361 0.358 0,178 0.260 0.533 0,447 0.533 0.718 (Pye), pat 13 19 0.158 1,170 0.387 0.723 0.316 0.428 First story Second sicry 0.115 (397 Third story , 0,291 6.305 9.323 0,327 Operation Greenhouse (Table 2.3) from the computed maximum cieplacemenis of the various analyees, The resulting permeneit deflectiona obiained are considcte7 to de the most reagonabls ihat can be estimated at the present time. Resulta of Auwysia A series of piict analyses was performed on Building 2 using the recors is obtained from Operation Greenhouse. These analyses were used .o determine the resistance vaiues for the columns of the building which wruld give the best approximation to the defection recersis of Operation Greeisouse. The approach adopted was to vary the height of columa o-tween plastic hinges. The recorded and computed dispiacement va time curves for the relative deflectinn of each of the three stories of Building 2 are presented in rigs. 2.54 to 2.58 The computed curves represent the best agreement obtained from the several analyses performed, The resigtances were ontained using the column heights aé listed on the figures. The co:nputations for these 2nalyees are included in Appendix E. Fourteen loading cases were investiga.cd for Building 2, a8 indicated in Tables 2.4 and 2.5, under the conditions of shot Mixe of Operation Ivy. The effective coivran heights interpreted from the Greenhouse data were used in the determination of the resistance values for theae analyses. Eight values of overpressure with an instantancous time of rise were considered. These analyses define the variation of maximum response with overpressure for the complete range of yielding to failure. Six additicnal analyses were performed Incurporating a time of rise of 18 msec in the front-face loading. These six analyses were used to show the = ; , ih” 2.3.6 vw 21 i # j 4 ; 4 j z § 4 x i 3 j3 a A é rncwy daa aie’ ie Sicha bel descents, SECRET — RESTRICTED DATA