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441
-— «oaei test
~^^\f^
Horizontal displacement
Smulatian
Model test -
Sinulation
Model test -
^
10 Li 30 2i 30
(s)
Vertical displacement
(s)
Vertical displacenent
FIG. 3.1
MEASURED AND SIMULATED
DISPLACEMENT RESPONSES AT POINT A
OF NON-ISOLATED MODEL
FIG. 3.2
MEASURED AND SIMULATED
DISPLACEMENT RESPONSES AT POINT A
OF ISOLATED MODEL
SIMULATION ANALYSIS FOR A 200M SPAN LATTICED DOME
Analysis Model
As analysis model a single-layer latticed dome of 200m span and 46.63m rise is selected, as shown in
Fig. 4.1. The dome is composed of pin-jointed steel pipes and pin-supported on the base isolation
devices at the bottom of a tension ring which is assumed to be so stiff that the isolation devices can be
idealized as a single d. o. f. system movable only in the horizontal x-direction. In Table 4.1 are shown
the principal dimensions of the dome which were so determined as to satisfy the allowable stress
design criteria against the gravity loads, wind loads and temperature change of 40°C (AIJ, 1973).
TABLE 4.1
PRINCIPAL DIMENSIONS OF DOME
FIG. 4.1
ANALYSIS MODEL
Span
Rise
Radius of curvature
Half subtended angle
Gravity load
Total mass of dome
Young's modulus of steel
Poisson's ratio of steel
Section of roof member
Section of tension ring
200m
46.63 m
130.54m
50°
1.96 kN/nr
76701
0.206 MN/mm 3
0.3
0500x20
0900x50