Canadian Dam Association Bulletin - Fall 2016 - 32

By knowing that ε = 5000x10-6 and αc = 1x10-5, then ΔT = 500° C. Therefore, in order to simulate concrete growth strain, a change of temperature 500° C (expansion) is applied to the concrete substructure. No expansion strain was applied to any of the steel members, such as stay vanes or speed rings. Furthermore, (αs) is considered to be zero. Also, the weight of the unit components and hydrostatic loads at the upstream and downstream faces are included in the FE model as shown in Table 1 and Table 2, respectively. The weight of the unit is applied as distributed load at the location of the unit components. Figure 6: Stay vanes and speed rings part 4.3 Stay Vanes and Speed Rings Figure 7: Contact between speed rings and concrete substructure The AAR was modeled as concrete thermal expansion strain (e) equals 5000 x 10-6 mm/mm (5000 me). This value was calculated by calibrating the model using the measurements of the existing clearances. Considering that: ε = αc ΔT (2) IKM Testing Canada Ltd is part of the IKM Group with over 2900 employees worldwide supporting industries such as Hydro, Oil & Gas and Pulp & Paper. * Concrete relief Cutting (AAR) * Concrete Surface Scarification and Remediation * UHP Hydro Cutting and Blasting * Decommissioning of Concrete Structures (Piers, Abutments & Elevated Surfaces) IKM Testing Canada Ltd | www.ikm.com Offices: Paradise, NL and Halifax, NS Contact: 902-889-2512 or sales@ca.ikm.com 32 734625_IKM.indd 1 The stay vanes and speed rings were meshed using three-dimensional solid - stress/displacement 8-node brick elements (C3D8). The general material properties were taken as specified before. In order to simulate the actual condition, the speed rings were defined to be in rigid contact with the concrete using the 'Surface to Surface Contact' option as shown in Figure 6 and Figure 7. The stay vanes and speed rings part was meshed into elements of approximately 100 mm. 5 MODEL CALIBRATION AND VERIFICATION The FE model has been calibrated using the measured relative deformation (offset) between top and bottom speed rings. The value of the thermal strain that is applied in the FEA is calculated such that the result of the FEA for the offset is close to the actual measured value of offset of G1. Hence, the value of the measured average strain from the instrumentations readings is verified against the calculated value from model calibration. 5.1 Concrete Instrumentation Data Analysis At Otto Holden GS, AAR concrete growth has been monitored since 1998 by various instruments located between G5 and G6. Data from these instruments is gathered by Dam Performance Monitoring and the View past issues of the2/25/15 CDA Bulletin 2:20 AM online at www.naylornetwork.com/cda-NXT/ http://www.ikm.com/ikm-testing-canada http://www.ikm.com http://www.naylornetwork.com/cda-NXT/

Table of Contents for the Digital Edition of Canadian Dam Association Bulletin - Fall 2016

Board of Directors
Board of Directors Nominations
Remedial Work at Lake Major Dam
CDA Conference Report: Otto Holden Generating Station Alkali-Aggregate Reaction Investigation
DSR Bulletin
Icold Corner
Notice of Annual General Meeting
Call for Papers, 2017 Conference
Young Professional Activities
Buyers’ Guide and Trade List
Canadian Dam Association Bulletin - Fall 2016 - cover1
Canadian Dam Association Bulletin - Fall 2016 - cover2
Canadian Dam Association Bulletin - Fall 2016 - 3
Canadian Dam Association Bulletin - Fall 2016 - 4
Canadian Dam Association Bulletin - Fall 2016 - 5
Canadian Dam Association Bulletin - Fall 2016 - 6
Canadian Dam Association Bulletin - Fall 2016 - Board of Directors
Canadian Dam Association Bulletin - Fall 2016 - 8
Canadian Dam Association Bulletin - Fall 2016 - Board of Directors Nominations
Canadian Dam Association Bulletin - Fall 2016 - Remedial Work at Lake Major Dam
Canadian Dam Association Bulletin - Fall 2016 - 11
Canadian Dam Association Bulletin - Fall 2016 - 12
Canadian Dam Association Bulletin - Fall 2016 - 13
Canadian Dam Association Bulletin - Fall 2016 - 14
Canadian Dam Association Bulletin - Fall 2016 - 15
Canadian Dam Association Bulletin - Fall 2016 - 16
Canadian Dam Association Bulletin - Fall 2016 - 17
Canadian Dam Association Bulletin - Fall 2016 - 18
Canadian Dam Association Bulletin - Fall 2016 - 19
Canadian Dam Association Bulletin - Fall 2016 - 20
Canadian Dam Association Bulletin - Fall 2016 - 21
Canadian Dam Association Bulletin - Fall 2016 - 22
Canadian Dam Association Bulletin - Fall 2016 - 23
Canadian Dam Association Bulletin - Fall 2016 - 24
Canadian Dam Association Bulletin - Fall 2016 - 25
Canadian Dam Association Bulletin - Fall 2016 - CDA Conference Report: Otto Holden Generating Station Alkali-Aggregate Reaction Investigation
Canadian Dam Association Bulletin - Fall 2016 - 27
Canadian Dam Association Bulletin - Fall 2016 - 28
Canadian Dam Association Bulletin - Fall 2016 - 29
Canadian Dam Association Bulletin - Fall 2016 - 30
Canadian Dam Association Bulletin - Fall 2016 - 31
Canadian Dam Association Bulletin - Fall 2016 - 32
Canadian Dam Association Bulletin - Fall 2016 - 33
Canadian Dam Association Bulletin - Fall 2016 - 34
Canadian Dam Association Bulletin - Fall 2016 - 35
Canadian Dam Association Bulletin - Fall 2016 - 36
Canadian Dam Association Bulletin - Fall 2016 - 37
Canadian Dam Association Bulletin - Fall 2016 - DSR Bulletin
Canadian Dam Association Bulletin - Fall 2016 - Icold Corner
Canadian Dam Association Bulletin - Fall 2016 - 40
Canadian Dam Association Bulletin - Fall 2016 - Notice of Annual General Meeting
Canadian Dam Association Bulletin - Fall 2016 - Call for Papers, 2017 Conference
Canadian Dam Association Bulletin - Fall 2016 - 43
Canadian Dam Association Bulletin - Fall 2016 - Young Professional Activities
Canadian Dam Association Bulletin - Fall 2016 - Buyers’ Guide and Trade List
Canadian Dam Association Bulletin - Fall 2016 - 46
Canadian Dam Association Bulletin - Fall 2016 - cover3
Canadian Dam Association Bulletin - Fall 2016 - cover4
Canadian Dam Association Bulletin - Fall 2016 - outsert1
Canadian Dam Association Bulletin - Fall 2016 - outsert2
Canadian Dam Association Bulletin - Fall 2016 - outsert3
Canadian Dam Association Bulletin - Fall 2016 - outsert4
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