Grouted sleeve connections used in precast reinforced concrete construction – Experimental investigation of a column-to-column joint

Tullini, Nerio; Minghini, Fabio

doi:10.1016/j.engstruct.2016.09.021

Cited by 163 publications

(69 citation statements)

References 18 publications

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“…The intensity of the ground motion was quantified by the maximum horizontal peak ground acceleration, which was obtained from ShakeMaps. Some buildings might have two floors or intermediate floors in specific areas, typically along one of the two short edges, where offices are usually located.Modern seismic design codes require adequate structural ductility and compliance with capacity design, with particular regard to connections between precast members [20][21][22][23]. With reference to Italian buildings, mainly comprising low-rise to mid-rise masonry and RC structures, Rota et al [9] proposed typological fragility curves based on earthquake damage data collected in the past 30 years.…”

mentioning

confidence: 99%

“…Each frame comprises columns clamped on either cast-in-place or precast pocket foundations, main beams simply supported on the column tops and precast slab elements, also simply supported on the main girders. Some buildings might have two floors or intermediate floors in specific areas, typically along one of the two short edges, where offices are usually located.Modern seismic design codes require adequate structural ductility and compliance with capacity design, with particular regard to connections between precast members [20][21][22][23]. However, up until 2005, the region struck by the Emilia earthquakes was not considered as a seismic area by building codes.…”

mentioning

confidence: 99%

“…Modern seismic design codes require adequate structural ductility and compliance with capacity design, with particular regard to connections between precast members [20][21][22][23]. However, up until 2005, the region struck by the Emilia earthquakes was not considered as a seismic area by building codes.…”

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confidence: 99%

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Empirical seismic fragility for the precast RC industrial buildings damaged by the 2012 Emilia (Italy) earthquakes

Buratti

Minghini

Ongaretto

et al. 2017

Earthq Engng Struct Dyn

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The paper analyses the seismic fragility of precast reinforced concrete buildings using observational damage data gathered after the 2012 Emilia earthquakes that struck Northern Italy. The damage level in 1890 buildings was collected, classified and examined. Damage matrices were then evaluated, and finally, empirical fragility curves were fitted using Bayesian regression. Building damage was classified using a six-level scale derived from EMS-98. The completeness of the database and the spatial distribution of the buildings investigated were analysed using cadastral data as a reference. The intensity of the ground motion was quantified by the maximum horizontal peak ground acceleration, which was obtained from ShakeMaps

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confidence: 99%

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confidence: 99%

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Empirical seismic fragility for the precast RC industrial buildings damaged by the 2012 Emilia (Italy) earthquakes

Buratti

Minghini

Ongaretto

et al. 2017

Earthq Engng Struct Dyn

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“…This includes mild steel pipes (Henin and Morcous 2015;Abd. Rahman et al 2010;Ling et al 2012;Alias et al 2014;Alias et al 2013), high strength steel (Seo et al 2016), aluminum tubes (Ling et al 2008;Tullini and Minghini 2016), spirals (Aldin Hosseini and Abd. Rahman 2013;Aldin Hosseini and Abd.…”

Section: Introductionmentioning

confidence: 99%

“…There could be other forces acting on the connection. Hence, experimental studies were conducted on the precast concrete frames with the connections of beam-to-beam (Aldin Hosseini et al 2015;Sayadi et al 2014), column-to-beam (Ameli et al 2015;Kim 2000), column-to-column (Tullini and Minghini 2016), wall-to-wall (Soudki et al 1995;Zhu and Guo 2016) and column-to-foundation (Haber et al 2014;Belleri and Riva 2012) to determine the structural performance.…”

Section: Introductionmentioning

confidence: 99%

An Experimental Study of Welded Bar Sleeve Wall Panel Connection under Tensile, Shear, and Flexural Loads

Ling¹,

Rahman

Ibrahim

et al. 2017

Int J Concr Struct Mater

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This paper presents an experimental study of a new grouted splice connection for wall panels, called Welded Bar Sleeve (WBS). The connections were made from steel pipes and tested with incremental tensile, shear and flexural loads until failure. The aim is to determine the behaviour of the connection under the three load cases. For this, the connections are evaluated in terms of the load-displacement responses, ultimate capacities, ductility responses and some feasibility assessment criteria. WBS was found to provide sufficient strength at the bar embedded length of 8, 8 and 11 times the bar diameter under tensile, shear and flexural loads, respectively. It is effective under tension, but could only service up to 1/3 of its ultimate shear capacity. Flexural load is the most critical load case for the connection. For this, further enhancements are required when subjected to shear and flexural loads.

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Tensile and flexural tests on ultrahigh performance concrete grouted sleeve connection

Qiu

Shao

Zhu

et al. 2022

Structural Concrete

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Connections in the assembled precast elements become essential locations for creating structural continuity. However, the construction challenges of conventional steel sleeve connections, such as rebar embedment length, rebar congestion, and formed grout defects (i.e., voids), are still a concern area for researchers and engineers. In this study, a proposed ultrahigh performance concrete (UHPC) grouted sleeve connection was presented for assembled precast elements, which might reduce defects, enhance durability, and accelerate structure construction. The tensile test of grouted sleeve connection with different grouting materials, rebar diameters, and anchoring lengths was conducted to determine an optimal anchoring length used in the flexural design.The precast specimens with the UHPC grouted sleeve connection were tested under flexural load. Also, strain changes in concrete, sleeve, and rebar were reported in tensile and flexural tests. The tensile test results showed two types of failure modes, the rebar rupture and bond failure between rebar and grouting. The recommended rebar anchoring length in the flexural design was six times the rebar diameter. The flexural test results showed that the precast specimen with or without the shear key has a similar failure mode as compared to the cast-in-place specimen, while their average cracking load, yield load, and ultimate load were 27.9%, 11.0%, and 7.4%, respectively, which is less than those of the cast-in-place specimen. Also, the flexural cracking resistance was the highest in the sleeve segment, followed by the joint region and the rebar segment. This study provides a reference for the design of the UHPC grouted sleeve connection for assembled precast elements.

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Grouted sleeve connections used in precast reinforced concrete construction – Experimental investigation of a column-to-column joint

Cited by 163 publications

References 18 publications

Empirical seismic fragility for the precast RC industrial buildings damaged by the 2012 Emilia (Italy) earthquakes

Empirical seismic fragility for the precast RC industrial buildings damaged by the 2012 Emilia (Italy) earthquakes

An Experimental Study of Welded Bar Sleeve Wall Panel Connection under Tensile, Shear, and Flexural Loads

Tensile and flexural tests on ultrahigh performance concrete grouted sleeve connection

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