Design of angle trusses by codes and second-order analysis with experimental verification

Fong, M.; Cho, Suk-Han; Chan, Siu Lai

doi:10.1016/j.jcsr.2009.07.001

Cited by 18 publications

(12 citation statements)

References 7 publications

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“…The poisson's ratio was taken as 0.3 and modulus of elasticity (MOE) was 2.0×10 5 MPa. The end plate was created with Solid45 element, and its MOE was set as 2×10 8 MPa to increase local stiffness and reduce the local stress concentration in the bearings. In the simplified model, node DOF (degree of freedom) coupling method between angle limbs and filled plates was introduced to simulate bolt connections.…”

Section: Numerical Simulationsmentioning

confidence: 99%

“…It was found that joint slip was significant under service loads, and joint deformation should be considered in the analysis of transmission line towers. The effect of joint slippage on loading capacity of steel towers was also studied by Fong et al [8]. It concluded that the joint slippage would affect the tower displacement but not the failure modes, and eccentricity which reduces capacity compared to ideal centric loading.…”

Section: Introductionmentioning

confidence: 96%

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Experimental research on behavior of Q420 dual-angle steel with cruciform section under dynamic compression

Li¹,

Cao²,

Zhang³

et al. 2017

J. vibroeng.

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Abstract. In order to investigate the mechanical behavior and deformation characteristic of dual-angle steel with cruciform section, this paper presents a series of dynamic compression tests performed on the compound members. The specimens are designed with different width-to-thickness ratios and slenderness ratios. The cruciform plates are used as interconnectors between two components, with three or four bolts connecting each face and angle limb. The experimental results indicate that the failure mode of core members is a mixture of flexural buckling and local instability. The internal force distribution of two sub-members is asymmetric, with the ratios varying from 1.04 to 1.31. A simplified finite element model is then developed to stimulate their experimental behavior. The analytical model is verified by experimental results and proved to be precise and reliable. Moreover, the theoretical analysis is performed to investigate the critical stresses due to different buckling modes. The bearing capacity predicted by Chinese standard is proved to be not conservative, on this basis, a modified design approach is proposed, and the design capacities fit the test data well.

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Section: Numerical Simulationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 96%

Experimental research on behavior of Q420 dual-angle steel with cruciform section under dynamic compression

Li¹,

Cao²,

Zhang³

et al. 2017

J. vibroeng.

View full text Add to dashboard Cite

show abstract

“…when P ≤ P pm (17) in which P is the axial force, P pm is the compressive capacity of the concrete cross-section, P cp is the compressive capacity of a composite cross-section, M y and M z are the external moments about the y and z axes, P(δ y + ∆ y ) and P(δ z + ∆ z ) are the P-∆ and P-δ moments about the y and z axes, and M cpy and M cpz are the moment capacities of the composite cross-section about the y and z axes. As shown in the section capacity check equations, the P-∆ and P-δ effects have been included such that the assumption of effective length and determination of k and χ are no longer required, with the complicated design procedure thereby simplified.…”

Section: Section Capacity Checkmentioning

confidence: 99%

“…The elastic moment M er can be determined by elastic section analysis, and Eqs. (16) and (17) are used as the interactive equations for evaluating the crosssection plastic strength.…”

Section: Plastic Hinge By Section Spring Modelmentioning

confidence: 99%

“…Use of the PEP element for second-order analysis in various types of steel structure with different buckling modes such as snap-through and snap-back buckling has been demonstrated [13,14]. The behavior of slender structures with complex geometry such as space domes [15,16] and the angle truss [17][18][19] can also be modeled and analyzed well by the second-order analysis method.…”

Section: Introductionmentioning

confidence: 99%

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Second-order analysis and design of imperfect composite beam–columns

Fong

Liu

Chan

2010

Engineering Structures

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Numerical investigation of the design of single‐span steel portal frames using the effective length and direct analysis methods

Ingkiriwang

Far

2018

Steel Construction

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The era of globalization enables the design, fabrication and erection of steel structures to take place in different locations far away from each other. Therefore, a widely acceptable steel design standard is required, and designers should be familiar with alternative specifications that may be considerably different from one another. This study deals with single-span unbraced steel portal frames and makes a comparison between the design methodologies adopted by the Australian and American design provisions, in particular, the effective length method (ELM) and direct analysis method (DAM). A brief discussion on the main features of both standards is also presented. Furthermore, the results of the parametric study are portrayed, highlighting the differences between these two design standards regarding stress interaction. Finally, of the two aforementioned methods, the most applicable optimization method for the design and development of cost-effective industrial portal frame buildings is proposed with respect to the structure geometry.

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Design of angle trusses by codes and second-order analysis with experimental verification

Cited by 18 publications

References 7 publications

Experimental research on behavior of Q420 dual-angle steel with cruciform section under dynamic compression

Experimental research on behavior of Q420 dual-angle steel with cruciform section under dynamic compression

Second-order analysis and design of imperfect composite beam–columns

Numerical investigation of the design of single‐span steel portal frames using the effective length and direct analysis methods

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