Page 295 - Advanced Design Examples of Seismic Retrofit of Structures

286 Advanced Design Examples of Seismic Retrofit of Structures

TABLE 5.2 Field Observations and Tests

Location Number Material Items Sign
Foundation 13 Concrete l Foundation F1–
dimensions F4
l Base plate properties
l Nondestructive
weld test
l Ultrasonic bar
detection (size,
number, arrangement)
l Concrete coring
l Cutting through
concrete for visual
inspection
l Bar tensile test
Floor (beam- 14 Steel l Determination of the C1–
column connection details C5
connection) l Nondestructive
weld test
l Beams and columns
profiles
l Floor details
l Diaphragm system
1st story (beam- 5 Steel l Determination of the C2,
column connection details C4,
connection) l Nondestructive C5
weld test
l Tensile test of
columns and beams

TABLE 5.3 The Results of the Standard Tests on the Material

Expected Value Lower Bound
Material Parameter (MPa) (MPa)
Steel (beams and Yield strength f yE ¼2360 f yL ¼2275
columns)
Ultimate f uE ¼3980 f uL ¼3910
strength
0
0
Concrete Compressive f cE ¼10.04 f cL ¼8.16
strength
Bars in foundation Yield strength f yE ¼3280 f yL ¼3161
Ultimate f uE ¼4633 f uL ¼4552
strength