Anchor Bolt Steel Strength in Annular Stand-Off Base Plate Connections

2014 ◽  
Vol 2406 (1) ◽  
pp. 23-31 ◽  
Author(s):  
Kenton E. McBride ◽  
Ronald A. Cook ◽  
David O. Prevatt ◽  
William Potter
Keyword(s):  
Base Plate ◽  
Anchor Bolt ◽  
Steel Strength ◽  
Plate Connections ◽  
Bolt Steel

Fatigue strength of steel pipe-base plate connections

1983 ◽  
Vol 5 (1) ◽  
pp. 87
Author(s):  
John W Fisher ◽  
Chitoshi Miki ◽  
Roger G Slutter ◽  
Denis R Mertz ◽  
William Frank
Keyword(s):  
Fatigue Strength ◽  
Base Plate ◽  
Steel Pipe ◽  
Plate Connections

scholarly journals Anchor Bolt Position in Base Plate In Terms Of T and J Anchor Bolt

2017 ◽  
Vol 97 ◽  
pp. 01110 ◽  
Author(s):  
Mohamad Hairi b Osman ◽  
Luqmanalhakim bin Imran ◽  
Hannifah binti Tami ◽  
Nor Azira bt Abdul Rahman ◽  
Salman bin Salim
Keyword(s):  
Base Plate ◽  
Anchor Bolt

Parametric analysis of the structural response of steel base plate connections

1999 ◽  
Vol 71 (1) ◽  
pp. 87-103 ◽  
Author(s):  
M.J. Kontoleon ◽  
E.S. Mistakidis ◽  
C.C. Baniotopoulos ◽  
P.D. Panagiotopoulos
Keyword(s):  
Parametric Analysis ◽  
Structural Response ◽  
Base Plate ◽  
Steel Base ◽  
Plate Connections

scholarly journals Strength resistance factors for seismic design of exposed based plate connections in special steel moment resisting frames

2020 ◽  
Vol 36 (2) ◽  
pp. 537-553 ◽  
Author(s):  
Pablo Torres-Rodas ◽  
Jawad Fayaz ◽  
Farzin Zareian
Keyword(s):  
Seismic Design ◽  
Base Plate ◽  
Limit States ◽  
Reliability Factor ◽  
Resistance Factors ◽  
Moment Resisting Frames ◽  
Modes Of Failure ◽  
Moment Resisting ◽  
Plate Connections ◽  
Story Building

This study presents a critical assessment of the reliability of current base plate connections in steel special moment resisting frames (SMRFs). Using a probabilistic outlook, this research evaluates the reliability of exposed column base (ECB) connections in SMRFs designed based on the current seismic design provisions; it suggests (and implements) a statistical approach to compute resistance factors for three modes of failure (concrete bearing, base plate yielding at tensile interface, and anchor bolt fracture) of ECB connections to achieve a target reliability index, β, of 4.5. Since ECB connections are limited to short buildings, therefore, this study is conducted on two-story and four-story SMRFs which are analyzed using a suite of 120 ground motions originating from strike-slip and reverse faults. ECB connections for the two-story building are designed to simulate pinned connection, while the bases of the four-story building represent moment connections. Detailed methodology for calculating the β of ECB connections is presented considering the three limit states in a moment–axial load interaction curve. Results indicate that the implementation of current seismic provisions results in β ~ 3.3 for non-moment resisting ECB connections for all tried combinations of resistance factors. For moment resisting ECB connections, however, only the designs based on a resistance factor for concrete bearing failure mode less than the current 0.65 result in an acceptable reliability factor of β > 4.5.

Instrumentation Results of New Manual for Assessing Safety Hardware Crash Tested Barriers for William P. Lane, Jr. Bridge

2021 ◽  
pp. 036119812110548
Author(s):  
Travis A Hopper ◽  
Maria Lopez ◽  
Scott Eshenaur
Keyword(s):  
Reinforced Concrete ◽  
Base Plate ◽  
Strain Gauges ◽  
Load Testing ◽  
Steel Rail ◽  
Test Configuration ◽  
Vehicle Impact ◽  
Plate Connections ◽  
Plate Connection ◽  
Deck Slab

Two new bridge barriers were crash tested in accordance with AASHTO Manual for Assessing Safety Hardware (MASH) guidelines for future use on the William P. Lane Bridge over the Chesapeake Bay: (1) a combination barrier consisting of a reinforced concrete parapet with a top steel rail evaluated for Test Level 4 (TL-4); and (2) a combination barrier consisting of a steel parapet with a top steel rail evaluated for test levels TL-4 and TL-5. For the first test configuration, the reinforced concrete barrier was attached to a representative overhang deck slab using anchor rods. In the vicinity of the vehicle impact points, load cells were installed to measure forces in anchor bolts, and strain gauges were attached to reinforcing bars to resolve measured strain data into forces through the overhang deck slab. In the second test configuration, the steel barrier was supported by evenly spaced representative floorbeams using a bolted base plate connection. Strain gauges were attached to elements of the barrier at support locations adjacent to the vehicle impact point to evaluate force transfer through the barrier system into the base plate connections. Linear potentiometers were installed to measure lateral dynamic deflection of the barrier near the vehicle impact region. This paper presents the analysis results of the force, strain, and displacement data measured in the barrier and deck structural components during crash load testing.

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