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Abdullah Alzlfawi_Thesis.pdf (14 MB)

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EFFECT OF SLAB AND PIER CONNECTION ON TRANSVERSE CRACKING IN STRUCTURAL SLAB BRIDGES

Alzlfawi, Abdullah Hamoud
http://rave.ohiolink.edu/etdc/view?acc_num=akron1525450625325638

Abstract Details

2018, Master of Science in Engineering, University of Akron, Civil Engineering.
Bridge deck cracking is a major problem not only in The United State but also in Australia and Europe as well. Cracking on the decks effect the bridge durability and severability. Therefore, there is a need for researchers to investigate the bridge deck cracking. These transverse cracks are usually formed above the pier cap region. Transverse cracks are not only observed on aged bridges but are found even on the newly constructed bridges. It is a common practice in Ohio Department of Transportation (ODOT) to use rigid connection in which U-bar, are used to tie the pier cap with the superstructure. However, there was a recent trial to change the connection type from rigid to pin for which there was no valid experimental study. It was assumed that, by changing the connection type, the crack widths over the pier cap region would reduce. Therefore, it was necessary to analyze ODOT bridges based on the deck slab and substructure connection type and then compare them with other DOT trails such as ones by IOWA Department of Transportation (IOWA DOT) in order to understand the differences in terms of connection specifications. Finite element modeling (FEM) was used to analyze the bridges with pin and rigid connections. SAP2000 and CSI-Bridge were also used to analyze the bridges. FEM results show a slight difference in moments between the two connection types. Based on FEM results, an experimental has been done in the lab. The lab experiments included two slabs that were connected by (i) pin connection and (ii) rigid connection with the supporting column. The specimens samples were tested in flexure to monitor the crack patterns and crack widths. The laboratory experiments indicate that crack widths for specimens with pin connection and rigid connection showed minimum difference but in case of pin connections the number of cracks is larger compared to those for rigid connections.
Anil Patnaik, Dr. (Advisor)
Zhe Luo, Dr. (Committee Member)
Srivatsan Tirumalai, Dr. (Committee Member)
211 p.
Civil Engineering
SAP2000; CSI Bridge; Slab, Pier, Connection; Transverse crack, Stiffness, Concrete

Recommended Citations

Citations

  • Alzlfawi, A. H. (2018). EFFECT OF SLAB AND PIER CONNECTION ON TRANSVERSE CRACKING IN STRUCTURAL SLAB BRIDGES [Master's thesis, University of Akron]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=akron1525450625325638

    APA Style (7th edition)

  • Alzlfawi, Abdullah. EFFECT OF SLAB AND PIER CONNECTION ON TRANSVERSE CRACKING IN STRUCTURAL SLAB BRIDGES. 2018. University of Akron, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=akron1525450625325638.

    MLA Style (8th edition)

  • Alzlfawi, Abdullah. "EFFECT OF SLAB AND PIER CONNECTION ON TRANSVERSE CRACKING IN STRUCTURAL SLAB BRIDGES." Master's thesis, University of Akron, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=akron1525450625325638

    Chicago Manual of Style (17th edition)

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This open access ETD is published by University of Akron and OhioLINK.