2.2.1 Exterior-wall-offset Measurements Table 2.1-—SUMMARYOF EXTERIOR-WALL-OFFSET AND COLUMN-OFFSET MEASUKEMENIS Average horizontal dieplacement relative to base, ft Bldg. Floor No, level wy Greenhouset Total 1 Second Third Roof 6.00 0.00 - 0.015 6.00 0.08 0.02 0.00 0.01 0.02 2 Second Third Roof 0.u8 0.14 0.32 0.08 0.18 0.32 3 Secona Third Roof 0.07 6.20 6,34 4 Sc. cond Thad Roof 0.6u 0.00 ~ 0.018 5 Second O14 Roof 0.38 Third 6 Serond Third Rom + Second Third Roof 0.20 | Per story Total 0.14 0.32 0.64 0.10 0.24 0.24 O10 0.34 0,58 0.04 0.13 0.26 0.81 0.33 9.00 6.13 0.18 0.21 0.13 0.31 0.52 0.01 0.01 0.01 0.01 0.01 0.00 0.03 0.23 0.22 G.2z 0.24 0.€° 0.21 0.54 0.03 0.07 6.06 0.03 0.1¢ 0.16 0.146 0.34 0.02 0.06 0.12 0.93 ~0.058 -0 665 Colurar-offset Measurements, ft 0.01 0.02 0.01 0.11 0.33 0.04 ~ 0.048 — 0.058 © Average ct mea.urements in Sec. 4.1. Average of mesourements in refcrence 10. tAverage of measurements in Sec. B.2. tNegabve sign indicates motion toward Crome’ ru, distances to the two points, C!.anges in the relative positions of the survey pointes were occained by comparison with earlier surveys, This information is summarited m Tabie 2.1, and the complete data are contained in Sec. B.1. 2.2.2 Column-offset Measurements The column-offset measurements for Buildings 2, 3, 5, and 6 were inade by hanging a plumb tcb from the ceiling in each story adjacent to the tront or rear of the coluinns on that floor. Horizontal-offget measurements were made from the \..umb line to the top and bottum of the adjacent face of each column (Fig. 2.4). The relative permanent distortion of each 21- umn in 2 horizontal direction was determined from the difference of the offsets at the top and bottom of the column. The column deformation thug obtained is approximately the total horizontal deformation of the frame of the structure caused by all the blast tests performed in the 16 SECRET — RESTRICTED DATA aoibsinicein Ti oe mately parallel with the walls of Structure 3.1.1, using a surveyor’s transit. Each line of sight defined a vertical plane located about | ft from the face of a wall. Offsat measurements were made perpendicular from each vertical plane to the survey points located in the wails (Fig. 2.2), The location of the survey points ta shown in Fig, 2.3, The position of each point relative to a vertical plane through the base point wi 4 then determined uy the dif-erence in the offset omy The exterior-wall-cffset measurements were made by establishing lines of sight app. oxi-