Load–deformation prediction for eccentrically loaded bolt groups by a kinematic hardening approach

Siu, W.H.; Su, R.K.L.

doi:10.1016/j.jcsr.2008.03.002

Cited by 14 publications

(7 citation statements)

References 14 publications

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“…Su and Zhu (2005) conducted experimental and numerical studies on BSP coupling beams and showed that small slips on the steel-concrete interface could significantly affect the overall response of BSP beams. Su and Siu proposed some numerical procedures for predicting the nonlinear load-deformation response of bolt groups (Su and Siu 2007;Siu and Su 2009) as well as the longitudinal and transverse slip profiles (Siu 2009;Siu and Su 2011) in BSP beams. Their predicted longitudinal slips were in good agreement with the test results obtained at some discrete locations on the beams .…”

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confidence: 99%

Experimental Study of Moderately Reinforced Concrete Beams Strengthened with Bolted-Side Steel Plates

2013

Advances in Structural Engineering

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Existing reinforced concrete (RC) beams can be effectively strengthened by attaching steel plates to the side faces of the beams using anchor bolts. The performance of this type of beam, bolted side-plated (BSP) beams, is mainly controlled by the degree of partial interaction at the steel-concrete interface. In this study, a total of seven moderately reinforced BSP beams with different steel plate depths and various bolt spacings were tested. Their behaviours were compared to the available test results for lightly reinforced BSP beams obtained by other researchers. The results show that moderately reinforced RC beams are more effective in increasing the flexural strength and ductility capacity using deeper steel plates than the use of a greater number of anchor bolts. It was also found that the longitudinal and transverse slips were controlled by both the stiffness ratios of the steel plates to the RC beam and the force-slip response of the anchor bolts.

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confidence: 99%

Experimental Study of Moderately Reinforced Concrete Beams Strengthened with Bolted-Side Steel Plates

2013

Advances in Structural Engineering

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“…BSP is a technique in which the plates are installed to the side faces of the RC beams by means of anchor bolts [41][42][43][44][45][46]. The behavior of this type of beams is determined by the degree of partial interaction at the interface between concrete and steel plates.…”

Section: Bolted Side Plating (Bsp) Techniquementioning

confidence: 99%

“…According to a series of experimental and theoretical studies, Oehlers et al [41] established the relationship between the degree of the plate-RC partial interaction and the shear stiffness of the bolt connection. A computer program was developed by Su and Siu [42,43] to calculate the non-linear behavior of bolt groups under in-plane loading. To verify the accuracy and effectiveness of this program, a numerical investigation was carried out to study the response of individual bolts subjected to in-plane loads and a bolt group.…”

Section: Bsp Techniquementioning

confidence: 99%

Repair of Fire-Damaged Reinforced Concrete Flexural Members: A Review

Yin

Zhou

et al. 2019

Sustainability

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The mechanical properties of both concrete and steel reinforcement, and the load-bearing capacity of reinforced concrete (RC) structures are well known to be temperature-sensitive, as demonstrated by the severe damage that major fires cause in buildings, followed—in extreme cases—by their collapse. Since in most cases RC structures survive a fire, retrofitting fire-damaged RC members is a hot subject today. In this paper, after a recall on the performance of RC beams and slabs in fire, different repair techniques are considered, among them externally bonded reinforcement, near surface-mounted fiber-reinforced polymers (FRP), bolted side plating, jacketing with high- and ultra-high performance concretes or mortars, and damaged-concrete replacement. Last but not least, the design equations aimed at evaluating the residual load-bearing capacity after repairing are also presented and discussed.

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“…A proper selection of bolt-plate arrangements is of utmost importance for the design of BSP beams. Kinematic hardening approach developed by the authors may be used for the analysis of non-linear responses of bolt groups [9].…”

Section: Variation Of Strain Factor Of the Critical Sectionmentioning

confidence: 99%

Effects of plastic hinges on partial interaction behaviour of bolted side-plated beams

Siu

2010

Journal of Constructional Steel Research

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a b s t r a c tSlips of mechanical connectors in steel plate reinforced concrete (RC) structures can significantly affect the load-carrying capacity of the structures. The difference in deformation between the steel plate and the reinforced concrete counterpart is known as partial interaction. In this study, the flexural behaviour of bolted side-plated (BSP) reinforced concrete beams was investigated experimentally. Two new deformation-based parameters, namely the strain factor and curvature factor, were introduced to quantify the degree of partial interaction between the RC beam and the steel plates. The experimental results revealed that the degree of partial interaction between RC beams and steel plates could be reduced by as much as 50% when the BSP beam proceeded from a linear to a non-linear stage in which plastic hinges have formed in critical sections. Consequently, the load-carrying capacity was reduced by up to 30% of the theoretical additional strength provided by the bolt-plate system, which is more than double the allowance proposed previously in the literature. The under-estimation of the effect of partial interaction in composite structures can result in unsafe design.

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Load–deformation prediction for eccentrically loaded bolt groups by a kinematic hardening approach

Cited by 14 publications

References 14 publications

Experimental Study of Moderately Reinforced Concrete Beams Strengthened with Bolted-Side Steel Plates

Experimental Study of Moderately Reinforced Concrete Beams Strengthened with Bolted-Side Steel Plates

Repair of Fire-Damaged Reinforced Concrete Flexural Members: A Review

Effects of plastic hinges on partial interaction behaviour of bolted side-plated beams

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