FUNDAMENTALS OF SEISMIC DESIGN
Assignment #2
Limit State Analysis
MEEES Student:
José Martín Velásquez Vargas
E-mail:
[email protected]
Professor: José
Restrepo
Assistant Professor: Matthew Tobolski
October, 2006
Pavia, Italy
Fundamentals of Seismic Design
MEEES student: José Velásquez
PROBLEM 4
Description of the problem
A static pushover analysis is performed by hand on a cantilever wall, in order to determine the
base shear vs. top story displacement relationship. The structure has a total of 7 stories with a
clear height of 2.5m between floors with an 800mm slab at each level. The cross sections of
the wall are shown in figure 1 bellow.
Figure
1
. Cross sections of the slabs. (1) 1
stfloor section. (2) Floors from 2
ndto 7
th.
The pushover analysis is performed for two load cases with lower and upper bound axial loads
of 100 kN/floor and 500 kN/floor, respectively. It has also been determined that an
appropriate rotational soil spring has a stiffness of 1.25 x 10
6kN-m/rad representing the use
of a pile foundation.
The moment-curvature relationships for all the floors and both load axial bounds are
developed by means of the Xtract program (Imbsen and Associated, 2006). The geometry, the
material properties, the reinforcement distribution and the confinement properties are all
shown in figures 1 and 2.
(a)
(b)
(c)
Figure 2. Material properties. (a) Unconfined concrete. (2) Confined concrete (Mander model). (3) Steel model.
Fundamentals of Seismic Design
MEEES student: José Velásquez
1. STATIC PUSHOVER CURVES
In order to plot the pushover curves, the following limit strains are considered for the
materials.
Table 1. Strain limits for the pushover analysis.
Limit strains
ci
Concrete tensile strain
0.007%
cii
Onset of concrete cover spalling
-0.400%
ciii
Deep of concrete cover spalling
-0.400%
civ
Crushing of confined concrete core
4.560%
si
Steel yielding strain
0.219%
sii
Outermost tensile strain
1.000%
siii
Onset of bar buckling (es-ec)>
3.750%
siv
Long. bar fracture for ec<=-0.004
and (es-ec)>
5.000%
A displacement controlled pushover analysis is performed over the critical section (base
section). In summary the steps followed to plot the pushover curves were:
• In an increasing way, a limit strain is defined and its correspondent curvature is
read from the moment-curvature relationship at the base. Also the related moment
from this diagram is read.
• With the moment at the base, the load distribution is calculated and the bending
moment diagram for the entire wall. In this analysis, a triangular-shaped distributed
load is assumed along the height of the wall.
• From the moments at every floor, the corresponding curvatures are read from
their moment-curvature relationships.
• Once the curvature diagram is plotted, by means of numerical integration, the
displacement associated with the current limit strain is computed.
These steps are repeated for all the limit strains. From the case sii, plasticity is already
considered to be developed and 2 hinges are assumed to be concentrated at the first floor.
Also when unloading takes place at the base, the other sections are considered to unload with
the yielding stiffness.
The pushover curves are shown in figure 4. Damage states are defined based on the strain
limits. In the upper load ciii could be considered as the actual ultimate stage because this is
when unloading takes place and it is expected that the wall perform unstable behavior. This
means ductility for the upper bound case is much lower than that of the lower bound case.
However, it is clearly seen that for the upper bound case the strength is increased.
Fundamentals of Seismic Design
MEEES student: José Velásquez
Base Shear vs. Drif Ratio
ci
si
sii
cii
siii
ciii
siv
ci
si
sii
cii
0
100
200
300
400
500
600
0.00%
0.50%
1.00%
1.50%
2.00%
2.50%
3.00%
3.50%
4.00%
Drift ratio
Lower bound (100 kN/floor)
Upper bound (500 kN/floor)
DSI
DSII
DSIII
ciii
siii
siv
Base shear (kN)
0.00m
0.20m
0.40m
0.60m
0.80m
1.00m
Roof displacement
MEEES student: José Velásquez
2. MOMENT-CURVATURE DIAGRAMS OF ALL THE FLOORS
Moment-curvature for all stories (lower bound: axial load = 100kN/floor)
0
1000
2000
3000
4000
5000
6000
7000
8000
0.00
0.05
0.10
0.15
0.20
Curvature x wall length (rad)
M
o
ment (kN
-m)
1st floor - 700 kN
2nd floor - 600 kN
3rd floor - 500 kN
4th floor - 400 kN
5th floor - 300 kN
6th floor - 200 kN
7th floor - 100 kN
Fundamentals of Seismic Design
MEEES student: José Velásquez
Moment-curvature for all stories (upper bound: axial load = 500kN/floor)
0
1000
2000
3000
4000
5000
6000
7000
8000
0.00
0.05
0.10
0.15
0.20
Curvature x wall length (rad)
Mome
nt
(k
N
-m)
1st floor - 3500 kN
2nd floor - 3000 kN
3rd floor - 2500 kN
4th floor - 2000 kN
5th floor - 1500 kN
6th floor - 1000 kN
7th floor - 500 kN
In figures 5 and 6 moment-curvatures diagrams are plotted for all 7 floors and both axial load
cases. The curvatures are normalized to the wall length.
For the lower bound case the moment strength goes from 8000 to 5000 kN-m as the height
increases. However the ultimate curvature in the first floor is appreciately decreased due to the
high axial load.
For the upper bound case the moment strength goes from 8500 to 4000 kN-m as the height
increases. However the ultimate curvature in the first floor is significantly decreased due to the
high axial load. This gives and idea that plastic hinges may develop in the second floor as well
due to the low ductility of the first floor.
3. STRAIN LIMITS DEFINITION FOR THE BASE OF THE WALL
The strain limits from table 1 are identified for the base section and for axial load cases. Both
plots are shown in figure 7
In the lower bound curve, siv takes place before civ. This means that the steel fractures before
the concrete can keep on using its remaining strength. Since there is no tell at this stage, the
section cannot resist moment anymore. This is way, the moment-curvature diagram is taken
until siv only.
In the upper bound curve, loss of strength is developed. In this case ciii must be taken as the
ultimate practical stage. This is due to the fact that when the section loses strength it usually
has an unstable behavior and the ductility cannot be well developed. Just for theoretical
analysis, all the limits are shown in figure 7.
Fundamentals of Seismic Design
MEEES student: José Velásquez
Moment-curvature for the base section (upper and lower bounds)
si sii ci si ci cii ciii =civ siii siv cii ciii sii siii siv 0 1000 2000 3000 4000 5000 6000 7000 8000 9000 0.00 0.01 0.02 0.03 0.04 0.05 0.06
Curvature x Wall length (rad)
Mo m e n t ( k N -Upper bound (500 kN/m) Lower bound (100 kN/m)
Figure 7. Strain limits for the base section and lower and upper bound axial load cases.
4. STEP-BY-STEP RESULTS
In the following figures, for each strain limit state it is shown the first mode distribution
(triangular-shaped), the bending moment diagram, the associated curvature distribution (based
on moment-curvature for each floor) for both load cases, and the displacement profile. The
displacements are derived by means of Integration.
Limit State Description: Concrete tensile strain = 0.007% Lower axial load: 500 kN/floor
Damage State: DSI
Force distribution (kN/m) Moment diagram (kN-m) Curvature (rad/m)
15 20 15.00 20.00 15.00 20.00 5 10 5.00 10.00 5.00 10.00
Curvature (rad/m) Moment (kN-m) Shear (kN) Deflection (m) Curvature (rad/m) Moment (kN-m) Shear (kN) Deflection (m)
23.10 0.00E+00 0.00 0.00 0.034 0.00E+00 0.00 0.00 0.080
22.30 1.40E-07 2.53 6.28 0.033 2.79E-07 5.92 14.71 0.077
19 80 1 91E-06 41 43 24 48 0 029 4 52E-06 97 06 57 35 0 068
Height (m) Lower bound (100 kN/floor) Upper bound (500 kN/floor)
0 0.00 10.00 20.00 30.00 0.00 0 500 1000 1500 2000 2500 3000 3500 0.00 0.00E+00 1.00E-04 2.00E-04 20.00 Deflection (m) 19.80 1.91E-06 41.43 24.48 0.029 4.52E-06 97.06 57.35 0.068 19.00 2.93E-06 63.17 29.85 0.028 6.89E-06 148.00 69.93 0.065 16.50 7.31E-06 157.43 45.19 0.024 1.72E-05 368.81 105.88 0.055 15.70 9.08E-06 195.38 49.65 0.022 2.13E-05 457.72 116.31 0.053 13.20 1.56E-05 335.57 62.14 0.018 3.66E-05 786.15 145.58 0.043 12.40 1.80E-05 386.72 65.68 0.017 4.22E-05 905.97 153.88 0.040 9.90 2.62E-05 563.43 75.32 0.013 6.15E-05 1319.95 176.46 0.031 9.10 2.90E-05 624.75 77.95 0.012 6.83E-05 1463.62 182.62 0.029 6.60 3.92E-05 828.57 84.74 0.009 9.07E-05 1941.11 198.52 0.020 5.80 4.24E-05 897.06 86.46 0.007 9.82E-05 2101.57 202.54 0.017 3.30 5.35E-05 1118.57 90.39 0.004 1.25E-04 2620.50 211.76 0.010 15.00 20.00 2.50 5.63E-05 1191.22 91.19 0.003 1.32E-04 2790.69 213.64 0.007 0.00 6.75E-05 1421.00 92.27 0.000 1.61E-04 3329.00 216.17 0.000 0.026 0.062 0.008 0.019 0.034 0.080 Total (m) Def lect io n Total (m) From foundation (m)
Remaining wall (including hinges, m) From foundation (m)
Remaining wall (including hinges, m)
5.00 10.00 0.00 0.00 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.10
Limite State: cii Upper axial load: 100 kN/floor
Limit State Description: Onset of concrete cover spalling = -0.4% Lower axial load: 500 kN/floor
Damage State: DSI
Force distribution (kN/m) Moment diagram (kN-m) Curvature (rad/m)
15 20 15.00 20.00 15.00 20.00 5 10 5.00 10.00 0 00 5.00 10.00
Curvature (rad/m) Moment (kN-m) Shear (kN) Deflection (m) Curvature (rad/m) Moment (kN-m) Shear (kN) Deflection (m)
23.10 0.00E+00 0.00 0.00 0.645 0.00E+00 0.00 0.00 0.445
22.30 4.66E-07 9.52 23.65 0.621 6.99E-07 15.08 37.48 0.429
19.80 7.27E-06 156.01 92.19 0.545 1.15E-05 247.20 146.07 0.376
19.00 1.11E-05 237.89 112.40 0.520 1.76E-05 376.96 178.10 0.359
Height (m) Lower bound (100 kN/floor) Upper bound (500 kN/floor)
0 0.00 10.00 20.00 30.00 40.00 50.00 0.00 0 1000 2000 3000 4000 5000 6000 7000 8000 0.00 0.00E+00 5.00E-03 1.00E-02 20.00 Deflection (m) 16.50 2.76E-05 592.82 170.19 0.444 4.37E-05 939.36 269.67 0.307 15.70 3.25E-05 735.74 186.96 0.420 5.43E-05 1165.82 296.25 0.290 13.20 1.97E-04 1263.65 234.01 0.344 1.02E-04 2002.33 370.80 0.238 12.40 2.63E-04 1456.24 247.34 0.320 1.10E-04 2307.51 391.93 0.221 9.90 4.63E-04 2121.68 283.65 0.246 3.69E-04 3361.94 449.46 0.170 9.10 4.97E-04 2352.61 293.54 0.222 3.51E-04 3727.86 465.14 0.154 6.60 7.00E-04 3120.12 319.10 0.151 6.73E-04 4944.02 505.64 0.105 5.80 7.67E-04 3378.04 325.56 0.129 6.57E-04 5352.72 515.87 0.090 3.30 1.15E-03 4212.16 340.38 0.062 1.05E-03 6674.43 539.35 0.045 2.50 1.52E-03 4485.72 343.40 0.042 1.00E-03 7107.91 544.14 0.032 1.75 3.08E-03 4744.10 345.47 0.024 1.21E-03 7517.32 547.42 0.020 10.00 15.00 1.75 3.08E 03 4744.10 345.47 0.024 1.21E 03 7517.32 547.42 0.020 0.00 1.07E-02 5351.00 347.47 0.000 5.16E-03 8479.00 550.58 0.000 0.099 0.157 0.546 0.289 0.645 0.445 Total (m) Deflection Total (m) From foundation (m)
Remaining wall (including hinges, m) From foundation (m)
Remaining wall (including hinges, m)
0.00 5.00 10.00 0 00 0 10 0 20 0 30 0 40 0 50 0 60 0 70 0.00 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70
Limit State Description: Deep of concrete cover spalling -0.4% Lower axial load: 500 kN/floor
Damage State: DSII
Force distribution (kN/m) Moment diagram (kN-m) Curvature (rad/m)
15 20 15.00 20.00 15.00 20.00 5 10 5.00 10.00 0 00 5.00 10.00
Curvature (rad/m) Moment (kN-m) Shear (kN) Deflection (m) Curvature (rad/m) Moment (kN-m) Shear (kN) Deflection (m)
23.10 0.00E+00 0.00 0.00 0.728 0.00E+00 0.00 0.00 0.464
22.30 4.66E-07 9.63 23.95 0.701 6.99E-07 15.01 37.30 0.446
19.80 7.30E-06 157.96 93.34 0.615 1.15E-05 246.06 145.40 0.392
19.00 1.11E-05 240.87 113.80 0.588 1.75E-05 375.23 177.28 0.374
Height (m) Lower bound (100 kN/floor) Upper bound (500 kN/floor)
0 0.00 10.00 20.00 30.00 40.00 50.00 0.00 0 1000 2000 3000 4000 5000 6000 7000 8000 0.00 0.00E+00 5.00E-03 1.00E-02 1.50E-02 20.00 Deflection (m) 16.50 2.78E-05 600.24 172.32 0.502 4.36E-05 935.04 268.43 0.320 15.70 3.51E-05 744.95 189.30 0.475 5.41E-05 1160.46 294.89 0.302 13.20 1.97E-04 1279.47 236.94 0.390 1.01E-04 1993.12 369.10 0.248 12.40 2.70E-04 1474.48 250.44 0.363 1.10E-04 2296.90 390.13 0.231 9.90 4.63E-04 2148.24 287.20 0.279 3.65E-04 3346.47 447.39 0.178 9.10 5.30E-04 2382.07 297.22 0.253 3.47E-04 3710.72 463.00 0.161 6.60 7.00E-04 3159.18 323.10 0.172 6.67E-04 4921.28 503.31 0.110 5.80 8.00E-04 3420.33 329.64 0.147 6.51E-04 5328.10 513.50 0.094 3.30 1.18E-03 4264.90 344.64 0.071 1.04E-03 6643.73 536.87 0.047 2.50 1.70E-03 4541.89 347.70 0.048 9.93E-04 7075.22 541.63 0.033 1.75 3.00E-03 4803.50 349.80 0.027 1.18E-03 7482.74 544.91 0.021 10.00 15.00 1.75 3.00E 03 4803.50 349.80 0.027 1.18E 03 7482.74 544.91 0.021 0.00 1.28E-02 5418.00 351.82 0.000 5.68E-03 8440.00 548.05 0.000 0.100 0.156 0.628 0.308 0.728 0.464 Total (m) Deflection Total (m) From foundation (m)
Remaining wall (including hinges, m) From foundation (m)
Remaining wall (including hinges, m)
0.00 5.00 10.00 0 00 0 10 0 20 0 30 0 40 0 50 0 60 0 70 0.00 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70
Limite State: civ Upper axial load: 100 kN/floor
Limit State Description: Crushing of confined concrete core 4.56% Lower axial load: 500 kN/floor
Damage State: DSIII
Force distribution (kN/m) Moment diagram (kN-m) Curvature (rad/m)
15 20 15.00 20.00 15.00 20.00 5 10 5.00 10.00 0 00 5.00 10.00
Curvature (rad/m) Moment (kN-m) Shear (kN) Deflection (m) Curvature (rad/m) Moment (kN-m) Shear (kN) Deflection (m)
23.10 0.00E+00 0.00 0.00 1.577 0.00E+00 0.00 0.00 0.843
22.30 3.73E-07 8.09 20.10 1.519 6.99E-07 1.92 4.78 0.811
19.80 6.19E-06 132.59 78.35 1.339 1.15E-05 31.55 18.64 0.712
19.00 9.41E-06 202.19 95.53 1.281 1.75E-05 48.10 22.73 0.681
Height (m) Lower bound (100 kN/floor) Upper bound (500 kN/floor)
0 0.00 10.00 20.00 30.00 40.00 50.00 0.00 0 1000 2000 3000 4000 5000 6000 7000 8000 0.00 0.00E+00 5.00E-03 1.00E-02 1.50E-02 2.00E-02 2.50E-02 3.00E-02 3.50E-02 20.00 Deflection (m) 16.50 2.35E-05 503.86 144.65 1.102 4.36E-05 119.87 34.41 0.582 15.70 2.91E-05 625.33 158.91 1.044 5.41E-05 148.77 37.80 0.551 13.20 1.31E-04 1074.02 198.89 0.864 1.01E-04 255.52 47.32 0.452 12.40 1.97E-04 1237.71 210.23 0.807 1.10E-04 294.46 50.01 0.421 9.90 3.64E-04 1803.29 241.08 0.628 3.65E-04 429.01 57.35 0.323 9.10 4.30E-04 1999.57 249.49 0.572 3.47E-04 475.71 59.36 0.292 6.60 5.67E-04 2651.90 271.22 0.395 6.67E-04 630.90 64.52 0.197 5.80 6.34E-04 2871.11 276.71 0.340 6.51E-04 683.06 65.83 0.167 3.30 7.76E-04 3580.06 289.30 0.167 1.04E-03 851.72 68.83 0.076 2.50 8.45E-04 3812.57 291.87 0.113 1.06E-02 907.04 69.44 0.048 1.75 9.44E-04 4032.17 293.63 0.062 1.06E-02 959.28 69.86 0.025 10.00 15.00 1.75 9.44E 04 4032.17 293.63 0.062 1.06E 02 959.28 69.86 0.025 0.00 3.64E-02 4548.00 295.32 0.000 1.51E-02 1082.00 70.26 0.000 0.084 0.020 1.493 0.823 1.577 0.843 Total (m) Deflection Total (m) From foundation (m)
Remaining wall (including hinges, m) From foundation (m)
Remaining wall (including hinges, m)
0.00 5.00 10.00 0 00 0 10 0 20 0 30 0 40 0 50 0 60 0 70 0 80 0 90 1 00 1 10 1 20 1 30 1 40 1 50 1 60 0.00 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 1.00 1.10 1.20 1.30 1.40 1.50 1.60
Limit State Description: Steel yielding strain = 0.219% Lower axial load: 500 kN/floor
Damage State: DSI
Force distribution (kN/m) Moment diagram (kN-m) Curvature (rad/m)
15 20 15.00 20.00 15.00 20.00 5 10 5.00 10.00 5.00 10.00
Curvature (rad/m) Moment (kN-m) Shear (kN) Deflection (m) Curvature (rad/m) Moment (kN-m) Shear (kN) Deflection (m)
23.10 0.00E+00 0.00 0.00 0.159 0.00E+00 0.00 0.00 0.225
22.30 2.79E-06 6.73 16.72 0.152 6.05E-07 12.68 31.50 0.217
19 80 5 12E-06 110 29 65 17 0 133 9 69E-06 207 81 122 80 0 190
Height (m) Lower bound (100 kN/floor) Upper bound (500 kN/floor)
0 0.00 10.00 20.00 30.00 40.00 0.00 0 1000 2000 3000 4000 5000 6000 7000 0.00 0.00E+00 5.00E-04 1.00E-03 1.50E-03 20.00 Deflection (m) 19.80 5.12E-06 110.29 65.17 0.133 9.69E-06 207.81 122.80 0.190 19.00 7.82E-06 168.18 79.46 0.127 1.48E-05 316.90 149.72 0.181 16.50 1.95E-05 419.11 120.32 0.107 3.68E-05 789.69 226.71 0.154 15.70 2.18E-05 520.15 132.18 0.101 4.57E-05 980.07 249.05 0.146 13.20 4.42E-05 893.36 165.44 0.081 8.11E-05 1683.29 311.72 0.119 12.40 5.09E-05 1029.52 174.87 0.075 9.20E-05 1939.84 329.48 0.111 9.90 2.95E-04 1499.97 200.53 0.056 2.29E-04 2826.26 377.84 0.085 9.10 2.98E-04 1663.23 207.53 0.050 2.14E-04 3133.88 391.03 0.077 6.60 4.63E-04 2205.83 225.60 0.033 4.60E-04 4156.27 425.07 0.052 5.80 4.67E-04 2388.17 230.16 0.028 4.35E-04 4499.84 433.68 0.045 3.30 6.67E-04 2977.87 240.64 0.014 7.30E-04 5610.96 453.41 0.023 15.00 20.00 2.50 6.75E-04 3171.27 242.77 0.010 6.92E-04 5975.37 457.44 0.017 0.00 8.43E-04 3783.00 245.65 0.000 1.01E-03 7128.00 462.86 0.000 0.070 0.132 0.089 0.093 0.159 0.225 Total (m) Def lect io n Total (m) From foundation (m)
Remaining wall (including hinges, m) From foundation (m)
Remaining wall (including hinges, m)
5.00 10.00 0.00 0.00 0.10 0.20 0.30
Limite State: sii Upper axial load: 100 kN/floor
Limit State Description: Outermost tensile strain = 1.0% Lower axial load: 500 kN/floor
Damage State: DSI
Force distribution (kN/m) Moment diagram (kN-m) Curvature (rad/m)
15 20 15.00 20.00 15.00 20.00 5 10 5.00 10.00 0 00 5.00 10.00
Curvature (rad/m) Moment (kN-m) Shear (kN) Deflection (m) Curvature (rad/m) Moment (kN-m) Shear (kN) Deflection (m)
23.10 0.00E+00 0.00 0.00 0.368 0.00E+00 0.00 0.00 0.393
22.30 4.02E-07 8.63 21.46 0.354 6.99E-07 15.04 37.38 0.378
19.80 6.57E-06 141.55 83.64 0.309 1.15E-05 246.59 145.71 0.332
19.00 1.00E-05 215.84 101.98 0.295 1.75E-05 376.03 177.66 0.317
Height (m) Lower bound (100 kN/floor) Upper bound (500 kN/floor)
0 0.00 10.00 20.00 30.00 40.00 50.00 0.00 0 1000 2000 3000 4000 5000 6000 7000 8000 0.00 0.00E+00 1.00E-03 2.00E-03 3.00E-03 4.00E-03 20.00 Deflection (m) 16.50 2.50E-05 537.87 154.41 0.250 4.37E-05 937.04 269.01 0.270 15.70 3.11E-05 667.54 169.63 0.236 5.42E-05 1162.94 295.52 0.255 13.20 1.64E-04 1146.52 212.32 0.192 1.01E-04 1997.37 369.88 0.209 12.40 2.34E-04 1321.26 224.42 0.178 1.10E-04 2301.80 390.96 0.194 9.90 3.97E-04 1925.01 257.35 0.134 3.67E-04 3353.61 448.34 0.149 9.10 4.64E-04 2134.54 266.34 0.121 3.49E-04 3718.63 463.99 0.135 6.60 6.34E-04 2830.90 289.52 0.081 6.70E-04 4931.78 504.39 0.092 5.80 7.00E-04 3064.92 295.39 0.068 6.54E-04 5339.46 514.60 0.079 3.30 1.01E-03 3821.72 308.83 0.032 1.04E-03 6657.90 538.01 0.040 2.50 1.01E-03 4069.93 311.57 0.021 9.97E-04 7090.31 542.79 0.028 1.75 3.77E-03 4304.35 313.45 0.013 1.19E-03 7498.70 546.07 0.018 10.00 15.00 1.75 3.77E 03 4304.35 313.45 0.013 1.19E 03 7498.70 546.07 0.018 0.00 3.77E-03 4855.00 315.26 0.000 3.85E-03 8458.00 549.22 0.000 0.090 0.156 0.279 0.237 0.368 0.393 Total (m) Deflection Total (m) From foundation (m)
Remaining wall (including hinges, m) From foundation (m)
Remaining wall (including hinges, m)
0.00 5.00 10.00 0 00 0 10 0 20 0 30 0 40 0.00 0.00 0.10 0.20 0.30 0.40
Limit State Description: Onset of bar buckling (es-ec)> 3.75% Lower axial load: 500 kN/floor
Damage State: DSII
Force distribution (kN/m) Moment diagram (kN-m) Curvature (rad/m)
15 20 15.00 20.00 15.00 20.00 5 10 5.00 10.00 0 00 5.00 10.00
Curvature (rad/m) Moment (kN-m) Shear (kN) Deflection (m) Curvature (rad/m) Moment (kN-m) Shear (kN) Deflection (m)
23.10 0.00E+00 0.00 0.00 0.674 0.00E+00 0.00 0.00 0.613
22.30 4.66E-07 9.58 23.80 0.648 6.99E-07 4.81 11.95 0.590
19.80 7.30E-06 157.03 92.79 0.569 1.15E-05 78.80 46.57 0.518
19.00 1.11E-05 239.45 113.13 0.543 1.75E-05 120.17 56.78 0.495
Height (m) Lower bound (100 kN/floor) Upper bound (500 kN/floor)
0 0.00 10.00 20.00 30.00 40.00 50.00 0.00 0 1000 2000 3000 4000 5000 6000 7000 8000 0.00 0.00E+00 5.00E-03 1.00E-02 1.50E-02 20.00 Deflection (m) 16.50 2.78E-05 596.70 171.30 0.464 4.36E-05 299.46 85.97 0.423 15.70 3.51E-05 740.55 188.19 0.439 5.41E-05 371.65 94.44 0.400 13.20 1.97E-04 1271.91 235.54 0.360 1.01E-04 638.32 118.21 0.328 12.40 2.70E-04 1465.77 248.96 0.334 1.10E-04 735.61 124.94 0.305 9.90 4.63E-04 2135.56 285.50 0.257 3.65E-04 1071.74 143.28 0.235 9.10 5.30E-04 2368.00 295.46 0.232 3.47E-04 1188.40 148.28 0.212 6.60 7.00E-04 3140.52 321.19 0.158 6.67E-04 1576.09 161.19 0.144 5.80 8.00E-04 3400.13 327.69 0.135 6.51E-04 1706.38 164.45 0.122 3.30 1.18E-03 4239.71 342.60 0.065 1.04E-03 2127.73 171.94 0.058 2.50 1.70E-03 4515.06 345.64 0.044 3.84E-03 2265.91 173.46 0.038 1.75 3.00E-03 4775.13 347.73 0.025 3.84E-03 2396.43 174.51 0.021 10.00 15.00 1.75 3.00E 03 4775.13 347.73 0.025 3.84E 03 2396.43 174.51 0.021 0.00 1.14E-02 5386.00 349.74 0.000 1.12E-02 2703.00 175.52 0.000 0.100 0.050 0.574 0.564 0.674 0.613 Total (m) Deflection Total (m) From foundation (m)
Remaining wall (including hinges, m) From foundation (m)
Remaining wall (including hinges, m)
0.00 5.00 10.00 0 00 0 10 0 20 0 30 0 40 0 50 0 60 0 70 0.00 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70
Limite State: siv Upper axial load: 100 kN/floor
Limit State Description: Long. bar fracture for ec<=-0.004 and (es-ec)> 5% Lower axial load: 500 kN/floor
Damage State: DSIII
Force distribution (kN/m) Moment diagram (kN-m) Curvature (rad/m)
15 20 15.00 20.00 15.00 20.00 5 10 5.00 10.00 0 00 5.00 10.00
Curvature (rad/m) Moment (kN-m) Shear (kN) Deflection (m) Curvature (rad/m) Moment (kN-m) Shear (kN) Deflection (m)
23.10 0.00E+00 0.00 0.00 0.809 0.00E+00 0.00 0.00 0.843
22.30 2.79E-07 9.60 23.87 0.779 6.99E-07 1.92 4.78 0.811
19.80 7.31E-06 157.46 93.05 0.684 1.15E-05 31.55 18.64 0.712
19.00 1.12E-05 240.12 113.45 0.654 1.75E-05 48.10 22.73 0.681
Height (m) Lower bound (100 kN/floor) Upper bound (500 kN/floor)
0 0.00 10.00 20.00 30.00 40.00 50.00 0.00 0 1000 2000 3000 4000 5000 6000 7000 8000 0.00 0.00E+00 5.00E-03 1.00E-02 1.50E-02 2.00E-02 2.50E-02 3.00E-02 3.50E-02 20.00 Deflection (m) 16.50 2.79E-05 598.36 171.78 0.559 4.36E-05 119.87 34.41 0.582 15.70 3.52E-05 742.61 188.71 0.529 5.41E-05 148.77 37.80 0.551 13.20 1.97E-04 1275.45 236.20 0.435 1.01E-04 255.52 47.32 0.452 12.40 2.80E-04 1469.85 249.66 0.405 1.10E-04 294.46 50.01 0.421 9.90 4.63E-04 2141.50 286.30 0.312 3.65E-04 429.01 57.35 0.323 9.10 5.20E-04 2374.59 296.29 0.283 3.47E-04 475.71 59.36 0.292 6.60 7.20E-04 3149.27 322.08 0.193 6.67E-04 630.90 64.52 0.197 5.80 8.00E-04 3409.60 328.60 0.165 6.51E-04 683.06 65.83 0.167 3.30 1.18E-03 4251.52 343.56 0.080 1.04E-03 851.72 68.83 0.076 2.50 1.70E-03 4527.64 346.61 0.054 1.06E-02 907.04 69.44 0.048 1.75 3.00E-03 4788.42 348.70 0.030 1.06E-02 959.28 69.86 0.025 10.00 15.00 1.75 3.00E 03 4788.42 348.70 0.030 1.06E 02 959.28 69.86 0.025 0.00 1.49E-02 5401.00 350.71 0.000 1.51E-02 1082.00 70.26 0.000 0.100 0.020 0.709 0.823 0.809 0.843 Total (m) Deflection Total (m) From foundation (m)
Remaining wall (including hinges, m) From foundation (m)
Remaining wall (including hinges, m)
0.00 5.00 10.00 0 00 0 10 0 20 0 30 0 40 0 50 0 60 0 70 0 80 0 90 1 00 1 10 1 20 1 30 1 40 1 50 1 60 0.00 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 1.00 1.10 1.20 1.30 1.40 1.50 1.60