Evaluation of Hollow-Core-FRP-Concrete-Steel Column and Footing Connection

Abstract

Accelerated bridge construction (ABC) has recently gained popularity among state departments of transportation in the U.S. to minimize construction costs, time, and waste, and optimize the use of materials. This research focused on the connection details between hollow-core fiber-reinforced polymer-concrete-steel columns for ABC construction and their foundations. Three foundation anchorage details were tested with multiple embedment lengths into the footing to evaluate the connection’s capability to transfer bending moment and achieve the ultimate column flexural and shear capacities. Nine column-footing (CF) specimens were cast in a form of steel pipe embedded to the footing and tested to failure. Seven specimens were cast to study the effect of embedment length, diameter-to-thickness ratio, compressive strength of the concrete footing, and end-of-column anchorage on monolithically cast connection capacity. Two specimens utilizing a socketed connection filled with ultra-high-performance concrete (UHPC), designed to represent connection of precast elements, were also cast and tested to failure. Embedment length had a significant effect on the performance of the CF connection. The short embedment lengths tested (1.6D_i and 1.68D_i) were not sufficient to develop the steel pipe flexural strength for the monolithic connection specimens with a normal-strength concrete footing. However, the use of socketed connection with UHPC, high-strength concrete footing, and welding a series of lugs to the embedded pipe prevented the steel pipe from pulling out, to some extent. The longer 1.8D_i embedment length resulted in the steel pipe reaching its flexural strength without pullout, whether using the socketed connection with UHPC, high-strength concrete, or normal-strength concrete.

Keywords

infrastructure construction bridges and structures ultra-high-performance concrete structures testing and evaluation of transportation structures connection polymer-concrete-steel

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References

Stephens

Lehman

Roeder

Concrete-Filled Tube Bridge Pier Connections for Accelerated Bridge Construction, Department of Civil and Environmental Engineering, University of Washington, Report No. CA15-2417, 2015.

ElGawady

Abdulazeez

Column-Footing Connection Evaluation of Hollow-Core Composite Bridge Columns. Missouri University of Science and Technology, 2018.

Teng

J. G.

Wong

Y. L.

Dong

S. L.

Hybrid FRP–Concrete–Steel Tubular Columns: Concept and Behavior. Construction and Building Materials, Vol. 21, No. 4, 2007, pp. 846–854.

Han

Tao

Liao

Tests on Cyclic Performance of FRP–Concrete–Steel Double-Skin Tubular Columns. Fuzhou University, 2010.

Zhang

Teng

Behavior of Hybrid Double-Skin Tubular Columns Subjected to Combined Axial Compression and Cyclic Lateral Loading. University of Wollongong, 2012.

Albitar

Ozbakkaloglu

Fanggi

Behavior of FRP-HSC and FRP-HSC-Steel Double-Skin Tubular Columns under Cyclic Axial Compression. Journal of Composites for Construction, Vol. 19, No. 2, 2015. https://doi.org/10.1061/(ASCE)CC.1943-5614.0000510.

Moon

Lehman

Roeder

Lee

Evaluation of Embedded Concrete-Filled Tube (CFT) Column-to-Foundation Connections. University of Washington, Seattle, 2013.

Pantelides

Neupane

Analysis of ABC Bridge Column-to-Footing Joints with Recessed Splice Sleeve Connectors, Mountain-Plains Consortium, Report No. MPC-638, 2022.

Khaleghi

Schultz

Seguirant

Marsh

Haraldsson

Eberhard

Stanton

Accelerated Bridge Construction in Washington State: From Research to Practice. PCI Journal, Vol. 57, 2012, pp. 34–49.

10.

Haraldsson

Janes

Eberhanrd

Stanton

Seismic Resistance of Socket Connection between Footing and Precast Column. Journal of Bridge Engineering, Vol. 18, No. 9, 2013. https://doi.org/10.1061/(ASCE)BE.1943-5592.0000413.

11.

Cheng

Sritharan

Side Shear Strength of Preformed Socket Connections Suitable for Vertical Precast Members, The American Society of Civil Engineers. Journal of Bridge Engineering, Vol. 24, No. 5, 2019. https://doi.org/10.1061/(ASCE)BE.1943-5592.000139

12.

Zhong

Wang

Review on Seismic Behavior of Precast Bridge Column with Socket Connections. Journal of Physics: Conference Series, Vol. 1838, 2021, p. 012043.

13.

Feng

Xiao

Liu

The Bond Properties Between Ultra-High-Performance Concrete and Normal Strength Concrete Substrate: Bond Macro-Performance and Overlay Transition Zone Microstructure, Science Direct. Cement and Concrete Composites, Vol. 128, 2022, p. 104436. https://doi.org/10.1016/j.cemconcomp.2022.104436

14.

Al-Madani

Al-Osta

Ahmad

Khalid

Al-Huri

Interfacial Bond Behavior Between Ultra High Performance Concrete and Normal Concrete Substrates, Science Direct. Construction and Building Materials, Vol. 320, 2022, p. 126229. https://doi.org/10.1016/j.conbuildmat.2021.126229.

15.

Munoz

Harris

Ahlborn

Froster

Bond Performance between Ultrahigh-Performance Concrete and Normal-Strength Concrete. ASCE Journal of Materials in Civil Engineering, Vol. 26, No. 8, 2013. https://doi.org/10.1061/(ASCE)MT.1943-5533.0000890.

16.

FHWA, “UHPC: A Robust Solution for Highway Infrastructure,”U.S. Department of Transportation Federal Highway Administration. https://highways.dot.gov/research/structures/ultra-high-performance-concrete/ultra-high-performanceconcrete#:~:text=Ultra%2Dhigh%20performance%20concretes%20have,connection%20of%20multiple%20prefabricated%20elements. Accessed December 10, 2023.

17.

Varbel

Flores

Toledo

Newtson

Weldon

Structural Testing of Ultra-High Performance Concrete Shear Keys in Concrete Bridge Superstructures. The American Society of Civil Engineers, Tran-SET, 2020.

18.

Hou

Zhu

Meng

Sun

Wang

Ren

Experimental Study on UHPC-Based Grouting Materials and Mechanical Performance of Grouted Splice Sleeve Joints. Frontiers, Structural Materials, Vol. 9, 2022, p. 912509. https://doi.org/10.3389/fmats.2022.912509.

19.

Yuan

Graybeal

Bond Behavior of Reinforcing Steel in Ultra-High Performance Concrete, Federal Highway Administration, FHWA-HRT-14-090, McLean, VA, 2014.

20.

Soliman

Heard

Williams

Ranade

Effects of the Tensile Properties of UHPC on the Bond Behavior. Construction and Building Materials, Vol. 392, 2023, p. 2023. https://doi.org/10.1016/j.conbuildmat.2023.131990,2023.

21.

Zhang

Han

Experimental and Numerical Investigation of Seismic Performance of Prefabricated Double-Column Piers Used in Accelerated Bridge Construction. Engineering Structures, Vol. 293, 2023, 116688. https://doi.org/10.1016/j.engstruct.2023.116688.

22.

Zhang

Han

Experimental Investigation of Seismic Behavior of UHPC-filled Socket Precast Bridge Column-Foundation Connection with Shear Keys. Engineering Structures, Vol. 228, p. 111527. https://doi.org/10.1016/j.engstruct.2020.111527, 2020.

23.

Abdelkarim

O. I.

ElGawady

M. A.

Gheni

Anumolu

Abdulazeez

Seismic Performance of Innovative Hollow-Core FRP–Concrete–Steel Bridge Columns. Journal of Bridge Engineering, Vol. 22, No. 2, 2016, p. 04016120.1–15, https://doi.org/10.1061/(ASCE)BE.1943-5592.00009985.

24.

Milner

J. C.

Performance of Multi-Hazard-Resistant Hollow-Core FRP-Concrete-Steel Columns with High-Strength SCC or UHPC, MS Thesis. The University of Oklahoma Norman, OK, 2023.

25.

AASHTO LRFD. Bridge Design Specifications, 8 ed, 2017. AASHTO LRFD.

26.

Building Code Requirements for Structural Concrete (ACI 318-19): An ACI Standard ; Commentary on Building Code Requirements for Structural Concrete, 2019.

27.

Yadak

Floyd

Volz

Evaluation of Hollow-Core-FRP-Concrete-Steel Column and Footing Connection Using a Socket Connection Filled with Ultra-High Performance Concrete. International Bridge Engineering Institute Conference, 2024.

28.

Looney

McDaniel

Volz

Floyd

Development and Characterization of Ultra-High Performance Concrete with Slag Cement for Use as Bridge Joint Material. British Journal of Civil and Architecture Engineering, Vol. 1, No. 2, 2019, pp. 1–14.