Theoretical and experimental study on steel open-web sandwich floor with flanged cruciform section shear key

Shen, Ruilin; Xiao, Jianchun; Ma, Kejian; Mao, Jiayi; Gui-ping, LI; Zeng, Weiyi; Wang, Qin

doi:10.1590/1679-78255897

Cited by 5 publications

(3 citation statements)

References 8 publications

(7 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In essence, open‐web girders can be studied by introducing shear deformation based on the intersection beam method for solid beams. Although the method was mentioned in Shen's study, [ 17 ] his test model was a simply supported beam model in nature, which was not well applicable.…”

Section: Introductionmentioning

confidence: 99%

Comparative study on overall and local static performance of steel open‐web girders

Bai¹,

Zhang

et al. 2022

Structural Design Tall Build

Self Cite

View full text Add to dashboard Cite

Summary To quantify the mechanical properties of five types of steel open‐web girders that have been tested or applied in practical engineering, a systematic study of the overall and local mechanical properties of steel open‐web girders based on the same dimensions and material conditions was presented. An overall study of the quasi‐intersection beam method for shear deformation was introduced for 8 × 8 grid open‐web girders to derive the determinants of the load distribution factor. Based on the load distribution factors, the essence and formula of any shear key node domain (SKND) were derived theoretically. The reliability of the numerical model was verified by tests on the H‐type unidirectional SKNDs, which led to a comparative load–displacement study of unidirectional and bidirectional SKNDs. Quantitative results of the overall flexural capacity and SKND load capacity of the H‐type, TH‐type, TS‐type, T‐type, and DT‐type open‐web girders were obtained. The maximum shear deformation in the elastic phase of the five open‐web girders accounted for 39.04% to 54.76% of the overall deformation. In this study, the adjustment factors of the modeling analysis based on the current practical design of equivalent dense‐ribbed solid beams (DRSBs) were revised. A method of SKND's design load capacity under the action of bidirectional forces was put forward for the first time.

show abstract

Section: Introductionmentioning

confidence: 99%

Comparative study on overall and local static performance of steel open‐web girders

Bai¹,

Zhang

et al. 2022

Structural Design Tall Build

Self Cite

View full text Add to dashboard Cite

show abstract

“…The elastic damage constitutive model was established by the UMAT interface in Abaqus and the bearing capacity of the shear key of the vierendeel girder was analyzed. The shear keys of the vierendeel girder were mainly shear deformation (Jiang et al 2019 andShen et al 2020). It was difficult to reflect the mechanical performance of the shear key truly with the aforementioned double scalar elastic damage constitutive model.…”

Section: Introductionmentioning

confidence: 99%

Double scalar elastic damage constitutive model considering shear damage

Zhang

Shen

2021

Lat. Am. j. solids struct.

View full text Add to dashboard Cite

“…e experimental study on the shear key of SOSP shows that the joint has better shear bearing capacity and ductility [9,10]. A static loading test on shear key joints of SOSP is performed and the formula of the intersection beam analogy method is obtained [11]. e shear connectors also appear in the composite beam and beam column joints.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study and Numerical Study on Shear Bearing Capacity of Shear Key Joints of Reinforced Concrete Open‐Web Sandwich Plates

Zhang

et al. 2021

Advances in Materials Science and Engineering

Self Cite

View full text Add to dashboard Cite

The shear key in the reinforced concrete open-web sandwich plate (RCOSP) is a block joint that connects with the top chord and the bottom chord. In order to understand the failure mode of the shear key and verify the accuracy of the current algorithm, a total of 9 test pieces are prepared and classified 3 groups were assigned longitudinal reinforcement (LR) ratios of 0.49%, 0.82%, and 1.24%, respectively. The horizontal concentrated static loading under simple support condition is carried out. The test results show that the shear key is horizontally cut and the concrete is pulled apart or crushed along the direction of chord width at the shear key-chords area; the strain level of the concrete and stirrup of the shear key is lower averagely; the development of the horizontal displacement and the strain of the longitudinal bars of the test pieces goes through elastic, elastoplastic, and plastic stages; the ultimate load of the test pieces has almost no relationship with the reinforcement ratio of shear key but is controlled by the degree of crack development in the area where shear key connects with the chords. To avoid the current algorithm overestimating the shear capacity of shear key, the restricted condition of shear section is proposed. The finite element analysis (FEA) further verifies that the restricted condition of shear section proposed in this paper is reasonable and necessary.

show abstract

Theoretical and experimental study on steel open-web sandwich floor with flanged cruciform section shear key

Cited by 5 publications

References 8 publications

Comparative study on overall and local static performance of steel open‐web girders

Comparative study on overall and local static performance of steel open‐web girders

Double scalar elastic damage constitutive model considering shear damage

Experimental Study and Numerical Study on Shear Bearing Capacity of Shear Key Joints of Reinforced Concrete Open‐Web Sandwich Plates

Contact Info

Product

Resources

About