Type of Document Master's Thesis Author Alander, Chad C. M.S. Author's Email Address email@example.com URN etd-4798-112921 Title Standoff Screws Used In Composite Joists Degree Master of Science Department Civil Engineering Advisory Committee
Advisor Name Title Easterling, William Samuel Committee Chair Cousins, Thomas E. Committee Member Murray, Thomas M. Committee Member Keywords
- shear connectors
- composite joists
- standoff screws
Date of Defense 1998-05-05 Availability unrestricted Abstract
The purpose of this study is to evaluate the performance
of the 5/16 in. diameter Elco Grade 8 standoff screw as
a mechanical shear connector in composite joists.
Standoff screws are being investigated as an alternative
to welded shear studs in short span composite joists.
The data and results obtained from 106 pushout tests
performed on the Elco Grade 8 standoff screw are
presented. The test parameters include: standoff screw
height, quantity of standoff screws per deck rib, standoff
screw position, slab depth, base angle thickness, deck
type, and amount of transverse reinforcement.
The test results from this study are compared to those
obtained in previous research performed by Hankins
(1994), and the applicability of Hankins' predictive
equation for the shear strength of the Elco Grade 8
standoff screw is investigated. The influences of various
test parameters on the shear strength of the standoff
screw are evaluated and the effects of grouping the
standoff screws in the deck ribs are examined. The
performance of the standoff screw in solid slab
applications is also ivestigated. Predictive equations for
the shear strength of the Elco Grade 8 standoff screw,
based on screw-related failure modes, concrete rib
failures, and longitudinal splitting of solid concrete slabs,
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28.8 Modem 56K Modem ISDN (64 Kb) ISDN (128 Kb) Higher-speed Access ABSTRACT.PDF 4.87 Kb 00:00:01 < 00:00:01 < 00:00:01 < 00:00:01 < 00:00:01 APPX.PDF 26.35 Kb 00:00:07 00:00:03 00:00:03 00:00:01 < 00:00:01 BEGINNG.PDF 15.55 Kb 00:00:04 00:00:02 00:00:01 < 00:00:01 < 00:00:01 CH1.PDF 73.47 Kb 00:00:20 00:00:10 00:00:09 00:00:04 < 00:00:01 CH2.PDF 647.91 Kb 00:02:59 00:01:32 00:01:20 00:00:40 00:00:03 CH3.PDF 92.37 Kb 00:00:25 00:00:13 00:00:11 00:00:05 < 00:00:01 CH4.PDF 241.55 Kb 00:01:07 00:00:34 00:00:30 00:00:15 00:00:01 CH5.PDF 33.21 Kb 00:00:09 00:00:04 00:00:04 00:00:02 < 00:00:01 REF.PDF 10.29 Kb 00:00:02 00:00:01 00:00:01 < 00:00:01 < 00:00:01 TITLE.PDF 2.46 Kb < 00:00:01 < 00:00:01 < 00:00:01 < 00:00:01 < 00:00:01 VITA.PDF 4.11 Kb 00:00:01 < 00:00:01 < 00:00:01 < 00:00:01 < 00:00:01
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