Short‐Term Behavior of Pultruded Fiber‐Reinforced Plastic Frame

Mosallam, Ayman; Bank, Lawrence C.

doi:10.1061/(asce)0733-9445(1992)118:7(1937)

Cited by 37 publications

(49 citation statements)

References 17 publications

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“…at a distance of l/2 from the edge of the specimen as shown in Fig. 3a simulating cases of local buckling of a beam or a column similar to those reported by Mosallam and Bank [16] and by Hassan and Mosallam [34] as shown in Fig. 4a.…”

Section: Pull-out Test Setup and Instrumentationsupporting

confidence: 73%

“…Over the past two decades or so, a number of studies focusing on the performance of PFRP connections and frame structures have also been reported. Some of the pioneering studies on PFRP frame structures were reported by Mosallam et al [14][15][16][17] presenting the results of a comprehensive theoretical and experimental program to evaluate both the short-and long-term behavior of PFRP structures subjected to both quasi-static and sustained loading.…”

Section: Introductionmentioning

confidence: 99%

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Structural evaluation of axial and rotational flexibility and strength of web–flange junctions of open-web pultruded composites

Mosallam

Feo

Elsadek

et al. 2014

Composites Part B: Engineering

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In past few decades, the interest in using pultruded fiber reinforced polymeric (PFRP) composites in construction\ud applications has grown rapidly. Several research studies were conducted and focused on the\ud performance of PFRP beams, columns and frame structures. The results of the majority of previous studies\ud highlighted a major problem associated with the deficiency of the off-the-shelf, unidirectional open-web\ud pultruded profiles. In this regards, a common conclusion was drawn by many researchers; that is: the\ud inherent structural deficiency of commercially produced unidirectional PFRP profiles, especially at the\ud flange/web(s) junction(s) that lacks fiber continuity. The lack of fiber continuity creates a ‘‘resin-rich’’\ud zones at the junctions that were shown to be responsible for rapid degradation of both axial and rotational\ud stiffness as well as the strength of the majority of PFRP profiles. Another related problem is the\ud use of incorrect framing connection details, currently being used by industry.\ud Such connection details mimic those associated with steel structures. This approach ignores both the\ud anisotropic and the viscoelastic nature of composites as well as the aforementioned inherent junction\ud deficiency that, in most cases, lead to a greater risk with regard to the safety, reliability and economic\ud aspects of such structures. This paper presents a summary of an experimental study aimed at evaluating\ud both axial and rotational stiffnesses and strengths of web–flange junctions, which may affect stiffness,\ud buckling, post-buckling, torsional and overall strength of PFRP structures. In particular, three sizes of\ud commercially-produced unidirectional pultruded H-profiles and two sizes of L-profiles were evaluated\ud under both service and ultimate loads. Using full-scale experimental data, P–d and M–h relations and idealized\ud expressions for each pultruded profile were developed that can be used for accurate modeling and\ud for establishing design limit-states for PFRP structures. In addition, two special test fixtures were\ud designed, fabricated and validated that can be adopted by ASTM/ISO standards for characterizing such\ud critical mechanical properties that are essential for reliable design of pultruded composite structures.\ud Conclusions and design recommendations are also presented

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Section: Pull-out Test Setup and Instrumentationsupporting

confidence: 73%

Section: Introductionmentioning

confidence: 99%

Structural evaluation of axial and rotational flexibility and strength of web–flange junctions of open-web pultruded composites

Mosallam

Feo

Elsadek

et al. 2014

Composites Part B: Engineering

View full text Add to dashboard Cite

show abstract

“…Previous full-scale studies [e.g., Mosallam (1990) and Mosallam and Bank (1992)] on the performance of PFRP portal frames illustrated the major impact of connection behavior on the overall performance of these structures. This includes buckling and post-buckling capacity ( Fig.…”

Section: Impact Of Connection Detail Design On the Overall Behavior Omentioning

confidence: 99%

“…Both the American Society of Civil Engineers (ASCE) and the Pultrusion Industry Council (PIC) of the Society of the Plastics Industry (SPI) have realized the importance and the urgent need for authoritative codes Mosallam (1990). and standards for structural pultruded composites.…”

Section: United Statesmentioning

confidence: 99%