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-