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The first row of each force-displacement file contains the test name, and the second row contains the number of force-displacement pairs in the history. From the third row onwards, the force-displacement pairs are provided in adjacent columns. The first column contains the top-displacement values (in mm), and the second column contains the lateral-load values (in kN). Regardless of the actual test geometry, all force-displacement data are reported in terms of an equivalent cantilever column.
The following notation (abbreviations and units) applies to data downloaded in spreadsheet format and displayed for column properties.
| f'c | Characteristic compressive strength of concrete (MPa) |
| fyl | Yield stress of longitudinal reinforcement (MPa) |
| fyt | Yield stress of transverse reinforcement (MPa) |
| fsu long | Ultimate steel strength for longitudinal reinforcement(MPa) |
| fsu trans | Ultimate steel strength for transverse reinforcement(MPa) |
| B | Column Width (mm) |
| H | Column Depth (mm) |
| L | Length of equivalent cantilever (mm) |
| Bar Dia | Diameter of transverse reinforcement (mm) |
| Spacing | Spacing of transverse reinforcement (mm) |
| Clear Cover | Distance between outer surface of column to outer edge of transverse reinforcement (mm) |
| Total # Bars | Number of longitudinal reinforcing bars |
| Diameter | Diameter of longitudinal reinforcement bars (mm) |
| Gross Area | Gross sectional area of column (mm2) |
| Vol. Trans | Volumetric transverse reinforcement ratio (reported) |
| Reinf. Ratio | Longitudinal reinforcement ratio (calculated) |
| Nv | Number of transverse shear bars in cross section |
| Configuration | C : Cantilever
DC : Double Cantilever DE : Double Ended |
| Type of Confinement (Code) | (1) I: Interlocking ties
(2) R: Rectangular ties (around perimeter) (3) RD: Rectangular and Diagonal ties (4) RI: Rectangular and Interlocking ties (5) RIJ: Rectangular and Interlocking ties, with J-hooks (6) RJ: Rectangular ties with J-hooks (7) RO: Rectangular and Octagonal ties (8) RU: Rectangular ties and U-bars (9) UJ: U-bars with J-hooks |
| P-D Codes | 1 : Feff (=Mbase/L) Provided
2 : Shear Provided 3 : P Ram rotation decreases V 4 : P Ram rotation increases V -- : Not provided in report |
| Failure Type | 1 : Flexure
2 : Shear 3 : Flexure-Shear |
| f'c | Characteristic compressive strength of concrete (MPa) |
| fy Long. Bars | Yield stress of longitudinal reinforcement (MPa) |
| fy, Spiral | Yield stress of transverse reinforcement (MPa) |
| fsu Long. Bars | Ultimate steel strength (MPa)(blank indicates that fsu was not reported) |
| Diameter | Diameter of column (mm) (Note:In case of square and octagonal sections D refers to the largest circle that can be inscribed in the section) |
| Length | Length of equivalent cantilever (mm) |
| P | Axial load (kN) |
| Diameter, Spiral | Diameter of spiral reinforcement (mm) |
| Hoop Spacing, Sv | Spacing of transverse reinforcement (mm) |
| Cover to Ctr. of Hoop Bar | Distance between outer surface of column and center of spiral reinforcement (mm). If there is no spiral, cover is taken as distance between outer surface and outside of longitudinal reinforcement. |
| Longitudinal Bars | Number of longitudinal reinforcing bars |
| Diameter Long. Bars | Diameter of longitudinal reinforcement bars (mm) |
| rho Spiral | Volumetric transverse reinforcement ratio |
| rho Long | Longitudinal reinforcement ratio |
| Area Core | Sectional area (mm2) circumscribed by spiral/hoop reinforcement. Diameter taken as distance from center to center of spiral. |
| Cross-Section | O : Octagonal
C : Circular S : Square |
| Configuration | C : Cantilever
DC : Double Cantilever DE : Double Ended HH : Cantilever with Hammer Head CFB : Cantilever with Flexible Base |
| P-D Codes | 1 : Feff (=Mbase/L) Provided
2 : Shear Provided 3 : P Ram rotation decreases V 4 : P Ram rotation increases V -- : Not provided in report |
| Failure Type | 1 : Flexure
2 : Shear 3 : Flexure-Shear |
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The Structural Performance Database is a project of the Pacific Earthquake Engineering Research Center, funded by the National Science Foundation. Contact Marc Eberhard at the University of Washington with questions or comments. Report technical problems to the server administrator. Copyright 2003. |