Composite steel beams with precast hollow core slabs: behaviour and design

Lam, Dennis

doi:10.1002/pse.128

Cited by 8 publications

(7 citation statements)

References 16 publications

(13 reference statements)

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“…2(c), long‐span composite floor with trusses in Fig. 2(d) and composite beams with precast hollow core slabs11 shown in Fig. 2(e).…”

Section: Floor Systemsmentioning

confidence: 99%

“… Different types of composite floor system: (a) slab on top of solid steel section; (b) slim‐floor system; (c) composite cellular beam; (d) composite truss; (e) composite beam with precast concrete slabs11 …”

Section: Floor Systemsmentioning

confidence: 99%

“…This type of construction has many advantages11, including the elimination of steel decking, long span without propping and speedy construction, and their use should become more widespread. However, there does not appear to be any reported study of fire performance of this type of construction.…”

Section: Floor Systemsmentioning

confidence: 99%

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Performance of steel–concrete composite structures in fire

Wang

2005

Progress Structural Eng Maths

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This paper presents a review of recent studies of the behaviour of steel-concrete composite structures in fire, including an assessment of research investigations and their implications on fire-resistant design of composite structures. The paper focuses on the three main parts of composite structure: floor systems, columns and joints. The section on composite floor systems includes bending behaviour of conventional composite floor/beam system with composite slabs on top of a solid steel I-beam; tensile membrane action in this system; slim-floor construction; composite cellular beam; composite truss and composite beam with precast concrete slabs. The section on composite columns includes studies of concrete-filled tubular (CFT) column; design of composite columns and performance of CFT columns within structures. The section on joints covers both steel and composite joints, including experiments on joints in fire; finite element simulation; the component method; behaviour of different joint components at elevated temperatures and implications of joint behaviour on steel and composite structural behaviour in fire. Within each section, wherever appropriate, the effects of whole structural behaviour are discussed. Furthermore, potential future research studies are identified to help understand the subject and develop improved performance-based practical fire resistant design calculation methods.

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“…2(c), long‐span composite floor with trusses in Fig. 2(d) and composite beams with precast hollow core slabs11 shown in Fig. 2(e).…”

Section: Floor Systemsmentioning

confidence: 99%

Section: Floor Systemsmentioning

confidence: 99%

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Performance of steel–concrete composite structures in fire

Wang

2005

Progress Structural Eng Maths

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“…Providing an accurate value of load capacity would incr ment in design calculations of tie spacing. Lam et al [7] and Lam [8] investigated a system where the composite with steel beams was carried out by headed studs and straight ties, as rein concrete topping and void infill cast integrally. The headed studs are weld side of the top flange of the beam, while the ties are inserted into saw-cut the flanges of the HCS and extended to the contiguous slab.…”

Section: Introductionmentioning

confidence: 99%

“…This connection detailing is more comm cause of their low cost, convenience, and fast installation. However, to da reported studies on the capacity or the mode of failure of the reinforcing b Hence, it is uncertain whether the reinforcing bar connection meets the int Force Reaction Lam et al [7] and Lam [8] investigated a system where the composite action of HCS with steel beams was carried out by headed studs and straight ties, as reinforcement, and concrete topping and void infill cast integrally. The headed studs are welded to the upper side of the top flange of the beam, while the ties are inserted into saw-cut milled slots in the flanges of the HCS and extended to the contiguous slab.…”

Section: Introductionmentioning

confidence: 99%

Behavior of Reinforcing Bar Connection of Hollow-Core Slabs to Steel Beams under In-Plane Forces

Brito

Mahmoud²,

El-Salakawy

2022

CivilEng

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Hollow-core slab (HCS) floors supported on steel beams require the use of steel reinforcement as connections to avoid slab displacement caused by lateral loads. However, current North American design codes offer limited provisions on the design and behavior of such connections. In this study, the results of an experimental investigation conducted on such connections to assess their capacity and mode of failure are presented. Eleven full-scale assemblies of HCS reinforcing bar connections to steel beams were tested to failure under monotonic in-plane loading (compression, tension, or shear). Test results revealed that connections tested under compression failed by bar buckling without yielding. Under tension, the connection bar reached close-to-yielding or yielding strains at the unrestrained portion of the bar, followed by grout splitting in the shear key or the grouted core. Finally, the mechanism of failure of specimens subjected to shear was governed by bar yielding.

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