Coverart for item
The Resource Collapse analysis of externally prestressed structures

Collapse analysis of externally prestressed structures

Label
Collapse analysis of externally prestressed structures
Title
Collapse analysis of externally prestressed structures
Creator
Contributor
Subject
Genre
Language
eng
Summary
The use of external prestressing is becoming more popular throughout Europe due to their expected higher durability and the possibility of active maintenance of the prestressing cables. Questions have been raised about the behaviour of these structures beyond service loads.A comprehensive numerical analysis has been carried out comparing the behaviour of three different types of externally prestressed bridges to a conventionally internally prestressed bridge. The external types are a monolithically built bridge with external tendons, a monolithically built bridge with external tendons and blocked deviators, and a precast segmental bridge with external tendons. The internally prestressed bridge is monolithic. The primary objectives are to determine whether or not ductile failure occurs, i.e. the load-deflection response, and the tendon stress increase at ultimate stage.The results show that the monolithically built bridges have a considerable higher ultimate moment capacity as well as deflection. This shows the advantage of using continuous ordinary reinforcement. All externally prestressed types did not reach the capacities of the internally prestressed bridge. It was found that ductility depends mostly on the reinforcement within the cross-section. Externally prestressed girders have no prestressing cables in the cross-section and need sufficient ordinary reinforcement in order to deform ductile. Although the tendon stress increase up to failure in the actual analysis is remarkable, the discussion shows that the magnitude varies greatly depending on the layout of the whole structure
Cataloging source
MiAaPQ
LC call number
TA665 -- .T36 2009eb
Literary form
non fiction
Nature of contents
dictionaries
Label
Collapse analysis of externally prestressed structures
Link
http://ebookcentral.proquest.com/lib/multco/detail.action?docID=594979
Instantiates
Publication
Copyright
Carrier category
online resource
Carrier category code
cr
Carrier MARC source
rdacarrier
Color
multicolored
Content category
text
Content type code
txt
Content type MARC source
rdacontent
Contents
  • Collapse analysis of externally prestressed structures -- Abstract -- Contents at a Glance -- Contents -- Acknowledgements -- Notation -- 1 Introduction -- 1.1 Definitions -- 1.2 Significance of this study -- 1.3 Scope of the project -- 1.4 Historical overview and typical characteristics of external prestressing -- 1.5 Further structural applications of external prestressing -- 2 Behaviour of externally prestressed structures -- 2.1 Tendon layout considerations -- 2.2 Behaviour at serviceability stage -- 2.3 Fatigue problems -- 2.4 Behaviour at ultimate limit stage -- 2.4.1 Influence of tendon slip on the ultimate limit state -- 2.4.2 Influence of the arrangement of the deviators on the behaviourat ultimate limit state -- 2.4.3 Influence of simply support and continuous support on theultimate limit state -- 2.4.4 Precast segmental and monolithic bridges -- 3 Collapse analysis -- 3.1 Investigated bridge types and their differences -- 3.2 Original bridge data -- 3.3 Simplified bridge data as basis for the calculations -- 3.4 FE Calculation -- 3.4.1 Technical aspects -- 3.4.2 General approach -- 3.4.3 Geometric model -- 3.4.4 Element specifications -- 3.4.5 Constitutive models -- 3.4.6 Ordinary reinforcement -- 3.4.7 Prestress -- 3.4.8 Material and geometric non-linearity -- 3.4.9 Kinematic constraints -- 3.4.10 Discrete crack propagation analysis of the precastsegmental type with gap elements -- 3.4.11 Summary of the dividing features of the different structure types for the FE analysis -- 4 Results -- 4.1 Load deflection behaviour -- 4.2 Tendon stress increase up to failure -- 4.3 Other results -- 5 Discussion of the results -- 5.1 Interpretation of the results -- 5.2 Discussion of the exactness of the FE calculations by comparing to the full scale test -- 5.3 Comparison to other FE calculations and test results -- 6 Conclusion and Recommendations
  • 6.1 Concluding remarks -- 6.2 Recommendations -- References -- Codes of practice -- Appendix
Control code
EBC594979
Dimensions
unknown
Extent
1 online resource (148 pages)
Form of item
online
Isbn
9783836622981
Media category
computer
Media MARC source
rdamedia
Media type code
c
Note
Electronic reproduction. Ann Arbor, Michigan : ProQuest Ebook Central, 2017. Available via World Wide Web. Access may be limited to ProQuest Ebook Central affiliated libraries.
Sound
unknown sound
Specific material designation
remote
System control number
  • (MiAaPQ)EBC594979
  • (Au-PeEL)EBL594979
  • (CaPaEBR)ebr10487505
  • (OCoLC)679421034
Label
Collapse analysis of externally prestressed structures
Link
http://ebookcentral.proquest.com/lib/multco/detail.action?docID=594979
Publication
Copyright
Carrier category
online resource
Carrier category code
cr
Carrier MARC source
rdacarrier
Color
multicolored
Content category
text
Content type code
txt
Content type MARC source
rdacontent
Contents
  • Collapse analysis of externally prestressed structures -- Abstract -- Contents at a Glance -- Contents -- Acknowledgements -- Notation -- 1 Introduction -- 1.1 Definitions -- 1.2 Significance of this study -- 1.3 Scope of the project -- 1.4 Historical overview and typical characteristics of external prestressing -- 1.5 Further structural applications of external prestressing -- 2 Behaviour of externally prestressed structures -- 2.1 Tendon layout considerations -- 2.2 Behaviour at serviceability stage -- 2.3 Fatigue problems -- 2.4 Behaviour at ultimate limit stage -- 2.4.1 Influence of tendon slip on the ultimate limit state -- 2.4.2 Influence of the arrangement of the deviators on the behaviourat ultimate limit state -- 2.4.3 Influence of simply support and continuous support on theultimate limit state -- 2.4.4 Precast segmental and monolithic bridges -- 3 Collapse analysis -- 3.1 Investigated bridge types and their differences -- 3.2 Original bridge data -- 3.3 Simplified bridge data as basis for the calculations -- 3.4 FE Calculation -- 3.4.1 Technical aspects -- 3.4.2 General approach -- 3.4.3 Geometric model -- 3.4.4 Element specifications -- 3.4.5 Constitutive models -- 3.4.6 Ordinary reinforcement -- 3.4.7 Prestress -- 3.4.8 Material and geometric non-linearity -- 3.4.9 Kinematic constraints -- 3.4.10 Discrete crack propagation analysis of the precastsegmental type with gap elements -- 3.4.11 Summary of the dividing features of the different structure types for the FE analysis -- 4 Results -- 4.1 Load deflection behaviour -- 4.2 Tendon stress increase up to failure -- 4.3 Other results -- 5 Discussion of the results -- 5.1 Interpretation of the results -- 5.2 Discussion of the exactness of the FE calculations by comparing to the full scale test -- 5.3 Comparison to other FE calculations and test results -- 6 Conclusion and Recommendations
  • 6.1 Concluding remarks -- 6.2 Recommendations -- References -- Codes of practice -- Appendix
Control code
EBC594979
Dimensions
unknown
Extent
1 online resource (148 pages)
Form of item
online
Isbn
9783836622981
Media category
computer
Media MARC source
rdamedia
Media type code
c
Note
Electronic reproduction. Ann Arbor, Michigan : ProQuest Ebook Central, 2017. Available via World Wide Web. Access may be limited to ProQuest Ebook Central affiliated libraries.
Sound
unknown sound
Specific material designation
remote
System control number
  • (MiAaPQ)EBC594979
  • (Au-PeEL)EBL594979
  • (CaPaEBR)ebr10487505
  • (OCoLC)679421034

Library Locations

  • Albina LibraryBorrow it
    3605 NE 15th Avenue, Portland, OR, 97212, US
    45.549039 -122.650525
  • Belmont LibraryBorrow it
    1038 SE César E. Chávez Boulevard, Portland, OR, 97214, US
    45.515217 -122.622669
  • Capitol Hill LibraryBorrow it
    10723 SW Capitol Highway, Portland, OR, 97219, US
    45.448003 -122.725422
  • Central LibraryBorrow it
    801 SW 10th Avenue, Portland, OR, 97205, US
    45.519098 -122.682899
  • Fairview-Columbia LibraryBorrow it
    1520 NE Village Street, Fairview, OR, 97024, US
    45.532283 -122.439336
  • Gregory Heights LibraryBorrow it
    7921 NE Sandy Boulevard, Portland, OR, 97213, US
    45.551662 -122.581264
  • Gresham LibraryBorrow it
    385 NW Miller Avenue, Gresham, OR, 97030, US
    45.500070 -122.433041
  • Hillsdale LibraryBorrow it
    1525 SW Sunset Boulevard, Portland, OR, 97239, US
    45.479852 -122.694013
  • Holgate LibraryBorrow it
    7905 SE Holgate Boulevard, Portland, OR, 97206, US
    45.490548 -122.582218
  • Hollywood LibraryBorrow it
    4040 NE Tillamook Street, Portland, OR, 97212, US
    45.537544 -122.621237
  • Isom BuildingBorrow it
    205 NE Russell Street , Portland, OR, 97212, US
    45.541222 -122.663268
  • Kenton LibraryBorrow it
    8226 N Denver Avenue, Portland, OR, 97217, US
    45.582857 -122.686379
  • Midland LibraryBorrow it
    805 SE 122nd Avenue, Portland, OR, 97233, US
    45.516683 -122.538488
  • North Portland LibraryBorrow it
    512 N Killingsworth Street, Portland, OR, 97217, US
    45.562454 -122.671507
  • Northwest LibraryBorrow it
    2300 NW Thurman Street, Portland, OR, 97210, US
    45.535316 -122.699254
  • Rockwood LibraryBorrow it
    17917 SE Stark Street, Portland, OR, 97233, US
    45.519541 -122.479013
  • Sellwood-Moreland LibraryBorrow it
    7860 SE 13th Avenue, Portland, OR, 97202, US
    45.467703 -122.652639
  • St. Johns LibraryBorrow it
    7510 N Charleston Avenue, Portland, OR, 97203, US
    45.590046 -122.751043
  • The Title Wave Used BookstoreBorrow it
    216 NE Knott Street, Portland, OR, 97212, US
    45.541647 -122.663075
  • Troutdale LibraryBorrow it
    2451 SW Cherry Park Road, Troutdale, OR, 97060, US
    45.529595 -122.409662
  • Woodstock LibraryBorrow it
    6008 SE 49th Avenue, Portland, OR, 97206, US
    45.478961 -122.612079
Processing Feedback ...