Moments in Deck Slabs Due to Cantilever Loads

Mufti, Aftab A.; Bakht, Baidar; Jaeger, Leslie G.

doi:10.1061/(asce)0733-9445(1993)119:6(1761)

Cited by 7 publications

(18 citation statements)

References 4 publications

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“…Figure 2-5(b) demonstrated the notation used in above relationships. It is interesting to note that, Mufti et al (1993) proved that variation the peak intensity of transverse moment My cannot turn into linear relationship, even for larger value of Sc/S, unlike the common postulate of linear variation the peak intensity of My.…”

Section: Mufti Et Al (1993)mentioning

confidence: 94%

“…Nevertheless, Mufti et al (1993) proposed a simplified method for determining the intensity of hogging moment in the first internal panel due to a concentrated load on the deck slab overhang.…”

Section: Mufti Et Al (1993)mentioning

confidence: 99%

“…Figure 2-4: Partial cross section of bridge demonstrating bending moment reinforcement in deck slab overhang and internal panel of deck slab, (Adapted from Mufti et al, (1993)) Mufti et al (1993) solved the problem based of some simplification. For instance, they reached to the point that, the girders can be supposed to be non-deflecting; furthermore, it can be assumed that the deck slab is simply supported over the girder close to external girder.…”

Section: Mufti Et Al (1993)mentioning

confidence: 99%

“…For instance, they reached to the point that, the girders can be supposed to be non-deflecting; furthermore, it can be assumed that the deck slab is simply supported over the girder close to external girder. Based on such these simplification, Mufti et al (1993) proposed two equations for finding the magnitude of the bending moment in both cantilever overhang and first internal panel as follows:…”

Section: Mufti Et Al (1993)mentioning

confidence: 99%

“…Equation 2-5 is for finding hogging moment intensity in the cantilever slab and equation 2-6 is for calculation of transverse moment in the internal panel due to the concentrated load applied on cantilever slab. Value of Bc and Bi can be found through tabulated tables Mufti et al (1993) prepared. Figure 2-5(b) demonstrated the notation used in above relationships.…”

Section: Mufti Et Al (1993)mentioning

confidence: 99%

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Investigation of the transverse and longitudinal moments at the transverse free end of deck slab cantilevers subjected to CHBDC truck loading

Pourmand¹

2021

Preprint

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Clause 5.7.1.3 of the Canadian Highway Bridge Design Code (CHBDC) specifies an equation for the calculation of transverse moment intensity (My) in the deck slab cantilever due to truck loading in a slab-on-girder bridge system. Also, it states that the transverse moment intensity shall be assumed 2My for the locations within a distance equal to cantilever length of the transverse free end of the deck slab cantilever. However, CHBDC design values do not consider the effects of barrier length, variable thickness of the barrier wall and shape of the cantilever’s edge stiffening on the response. In addition, the longitudinal moment on the deck slab cantilever due to truck loading is as yet unavailable. Thus, a parametric study was conducted, using the finite element modelling, to investigate the effect of these key parameters in the transverse and longitudinal moments at the region of the transverse free edge of deck slab cantilever. Based on the data generated from this parametric study, imperial equations for the transverse and longitudinal moments at the transverse end of the deck slab cantilever were deduced.

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Section: Mufti Et Al (1993)mentioning

confidence: 94%

Section: Mufti Et Al (1993)mentioning

confidence: 99%

Section: Mufti Et Al (1993)mentioning

confidence: 99%

Section: Mufti Et Al (1993)mentioning

confidence: 99%

Section: Mufti Et Al (1993)mentioning

confidence: 99%

See 3 more Smart Citations

Investigation of the transverse and longitudinal moments at the transverse free end of deck slab cantilevers subjected to CHBDC truck loading

Pourmand¹

2021

Preprint

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Cantilever Slabs

Bakht¹,

Mufti²

2015

Bridges

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Environmental and economical optimization of reinforced concrete overhang bridge slabs

Chalouhi

Ciulla

Bueno

et al. 2023

Struct Multidisc Optim

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The dimensioning of overhang slabs in bridge decks is usually based on simplified, thus conservative methods. The resulting over-dimensioned overhang bridge slabs can also affect the design of the girders. In this paper, an optimization procedure for the design of this structural element is presented. The aim is to minimize investment cost and global warming potential in the material production stage simultaneously while fulfilling all safety requirements. The design variables used in this study are the thicknesses of the overhang slab and the height of the edge beam. However, a complete detailed design of reinforcement is performed as well. Both a single-objective and a multi-objective formulation of the nonlinear problem are presented and handled with two well-known optimization algorithms: pattern search and genetic algorithm. The procedure is applied to a case study, which is a bridge in Sweden designed in 2013. One single solution minimizing both objective functions is found and leads to savings in investment cost and CO2-equivalent emissions of 4.2% and 9.3%, respectively. The optimization procedure is then applied to slab free lengths between 1 and 3 m. The outcome is a graph showing the optimal slab thicknesses for each slab length to be used by designers in the early design stage.

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Moments in Deck Slabs Due to Cantilever Loads

Cited by 7 publications

References 4 publications

Investigation of the transverse and longitudinal moments at the transverse free end of deck slab cantilevers subjected to CHBDC truck loading

Investigation of the transverse and longitudinal moments at the transverse free end of deck slab cantilevers subjected to CHBDC truck loading

Cantilever Slabs

Environmental and economical optimization of reinforced concrete overhang bridge slabs

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