![Concrete properties (Mander et al.) in SeismoStruct
Steel properties (Blinear) in SeismoStruct
Section Properties:
b=300;% [mm]
h=300;% [mm]
L=3000;% [mm] Column Length
%As: As1 As2 As3 As4 As5 As6](https://image.slidesharecdn.com/xy9yqfflsusxwlip6wbz-signature-6dc5a4c8c01496a1035131bb49a007ad206aed910c36e3bcabc30fae24706d14-poli-191029063352/85/1st-order-pushover-analysis-of-column-subjected-to-compression-and-tension-axial-load-in-matlab-and-seismo-struct-displacement-control-2-320.jpg)
![As=[100.528 0 0 0 0 100.528]; % NOTE: As1 & As6 = 2fi8
%d:d1 d2 d3 d4 d5 d6
d=[25 0 0 0 0 275];
Concrete Properties:
fc =25;% [N/mm^2] Unconfined concrete strength
ecu=0.004;% Ultimate concrete strain
Ec=5000*sqrt(fc);
ec0=(2*fc)/Ec;
fct=-0.7*sqrt(fc);% Concrete tension stress
ect1=(2*fct)/Ec;ect2=(2.625*fct)/Ec;ect3=(9.292*fct)/Ec;% Concrete tension
strain
Steel Reinforcing Properties:
fy =400;% [N/mm^2] Yield strength of reinforcing steel
Es =2e5;% [N/mm^2] Modulus of elasticity of steel
fu=1.5*fy;% Ultimate steel stress
ey=fy/Es;% Yeild steel strain](https://image.slidesharecdn.com/xy9yqfflsusxwlip6wbz-signature-6dc5a4c8c01496a1035131bb49a007ad206aed910c36e3bcabc30fae24706d14-poli-191029063352/85/1st-order-pushover-analysis-of-column-subjected-to-compression-and-tension-axial-load-in-matlab-and-seismo-struct-displacement-control-3-320.jpg)
1st order pushover analysis of column subjected to compression and tension axial load in matlab and seismo struct (displacement control)
- 2. Concrete properties (Mander et al.) in SeismoStruct Steel properties (Blinear) in SeismoStruct Section Properties: b=300;% [mm] h=300;% [mm] L=3000;% [mm] Column Length %As: As1 As2 As3 As4 As5 As6
- 3. As=[100.528 0 0 0 0 100.528]; % NOTE: As1 & As6 = 2fi8 %d:d1 d2 d3 d4 d5 d6 d=[25 0 0 0 0 275]; Concrete Properties: fc =25;% [N/mm^2] Unconfined concrete strength ecu=0.004;% Ultimate concrete strain Ec=5000*sqrt(fc); ec0=(2*fc)/Ec; fct=-0.7*sqrt(fc);% Concrete tension stress ect1=(2*fct)/Ec;ect2=(2.625*fct)/Ec;ect3=(9.292*fct)/Ec;% Concrete tension strain Steel Reinforcing Properties: fy =400;% [N/mm^2] Yield strength of reinforcing steel Es =2e5;% [N/mm^2] Modulus of elasticity of steel fu=1.5*fy;% Ultimate steel stress ey=fy/Es;% Yeild steel strain
- 4. esh=0.01;% Strain at steel strain-hardening esu=0.09;% Ultimate steel strain Esh=(fu-fy)/(esu-esh); Analysis Report: ########################################### # Compression Axial Load‐Displacement Analysis # ########################################### (+)Increment 1 : Strain: 0.00004 ‐ Displacement: 0.126 ‐ Axial Load: 94.99 (+)Increment 2 : Strain: 0.00009 ‐ Displacement: 0.277 ‐ Axial Load: 206.36 (+)Increment 3 : Strain: 0.00019 ‐ Displacement: 0.563 ‐ Axial Load: 408.95 (+)Increment 4 : Strain: 0.00028 ‐ Displacement: 0.840 ‐ Axial Load: 595.85 (+)Increment 5 : Strain: 0.00037 ‐ Displacement: 1.103 ‐ Axial Load: 764.01 (+)Increment 6 : Strain: 0.00043 ‐ Displacement: 1.288 ‐ Axial Load: 877.58 (+)Increment 7 : Strain: 0.00087 ‐ Displacement: 2.615 ‐ Axial Load: 1565.38 (+)Increment 8 : Strain: 0.00104 ‐ Displacement: 3.122 ‐ Axial Load: 1770.34 (+)Increment 9 : Strain: 0.00117 ‐ Displacement: 3.512 ‐ Axial Load: 1906.15 (+)Increment 10 : Strain: 0.00130 ‐ Displacement: 3.903 ‐ Axial Load: 2022.97 (+)Increment 11 : Strain: 0.00160 ‐ Displacement: 4.800 ‐ Axial Load: 2219.51 (+)Increment 12 : Strain: 0.00200 ‐ Displacement: 6.000 ‐ Axial Load: 2235.40 (+)Increment 13 : Strain: 0.00240 ‐ Displacement: 7.200 ‐ Axial Load: 2235.55 (+)Increment 14 : Strain: 0.00280 ‐ Displacement: 8.400 ‐ Axial Load: 2235.70 (+)Increment 15 : Strain: 0.00320 ‐ Displacement: 9.600 ‐ Axial Load: 2235.85 (+)Increment 16 : Strain: 0.00360 ‐ Displacement: 10.800 ‐ Axial Load: 2236.00 (+)Increment 17 : Strain: 0.00400 ‐ Displacement: 12.000 ‐ Axial Load: 2240.42 +======================+ = Analysis curve fitted = Displacement Axial Load (mm) (kN) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ 1.0e+003 * 0 0 0.0027 2.0134 0.0120 2.2404 +======================+ +‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐+ Elastic EA : 753.87 (kN) Plastic EA : 24.33 (kN) Unconfined Section Axial Ductility Rito : 4.49 Ultimate Axial Capacity (kN) : 2240.42 +‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐+ ###################################### # Tension Axial Load ‐Displacement Analysis # ###################################### (+)Increment 1 : Strain: ‐0.00001 ‐ Displacement: ‐0.030 ‐ Axial Load: ‐11.68 (+)Increment 2 : Strain: ‐0.00112 ‐ Displacement: ‐3.363 ‐ Axial Load: ‐75.48 (+)Increment 3 : Strain: ‐0.00223 ‐ Displacement: ‐6.697 ‐ Axial Load: ‐80.42 (+)Increment 4 : Strain: ‐0.00334 ‐ Displacement: ‐10.030 ‐ Axial Load: ‐80.42 (+)Increment 5 : Strain: ‐0.00445 ‐ Displacement: ‐13.363 ‐ Axial Load: ‐80.42 (+)Increment 6 : Strain: ‐0.00557 ‐ Displacement: ‐16.697 ‐ Axial Load: ‐80.42 (+)Increment 7 : Strain: ‐0.00668 ‐ Displacement: ‐20.030 ‐ Axial Load: ‐80.42 (+)Increment 8 : Strain: ‐0.00779 ‐ Displacement: ‐23.363 ‐ Axial Load: ‐80.42 (+)Increment 9 : Strain: ‐0.00890 ‐ Displacement: ‐26.697 ‐ Axial Load: ‐80.42 (+)Increment 10 : Strain: ‐0.01001 ‐ Displacement: ‐30.030 ‐ Axial Load: ‐80.43 . . . (+)Increment 72 : Strain: ‐0.07890 ‐ Displacement: ‐236.697 ‐ Axial Load: ‐115.05 (+)Increment 73 : Strain: ‐0.08001 ‐ Displacement: ‐240.030 ‐ Axial Load: ‐115.61 (+)Increment 74 : Strain: ‐0.08112 ‐ Displacement: ‐243.363 ‐ Axial Load: ‐116.17 (+)Increment 75 : Strain: ‐0.08223 ‐ Displacement: ‐246.697 ‐ Axial Load: ‐116.73 (+)Increment 76 : Strain: ‐0.08334 ‐ Displacement: ‐250.030 ‐ Axial Load: ‐117.29