Strength equations of longitudinal plate-to-circular hollow section (CHS) joints

Kim, Woo-Bum; Shin, Kyung‐Jae; Lee, Hee-Du; Lee, Swoo-Heon

doi:10.1007/s13296-015-6018-1

Cited by 18 publications

(5 citation statements)

References 2 publications

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“…he connection efficiency has been employed to compare structural advantages between different joint, which is defined as Eqn. (10). Substitute by Eqn.…”

Section: Connection Efficiencymentioning

confidence: 99%

“…For branch plate-to-circular hollow section, various literatures have been reported [6][7][8]. Recently, concrete-filled chord has been a prevailed technical practice in the tubular structure [9][10][11]. Besides concrete-filled circular section joint, elliptical section joint were also investigated about its structural performance [12][13].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Tension Strength Prediction of Transverse Branch Plate-to-Rectangular Joint with Concrete Filling

Xiong

Liu

et al. 2020

Frattura Ed Integrità Strutturale

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This paper predicts the tension strength of Concrete-filled Branch Plate-to-Rectangular Hollow (CBPRH) joint by conducting experimental and theoretical analysis. A total of 46 X-joints with different geometric parameters were investigated, in which 4 specimens were tested under ultimate tension and 42 specimens were numerically analyzed. The joint’s strength, failure mode and load-displacement curve were obtained. Perfobond Leister Rib (PBR) was welded in part of the specimens to investigate its effect on joint’s tensile performance. It is shown that the ultimate strength of transverse CBPRH joint benefit from grouting of chord and installation of PBR. The ultimate strength of CBPRH joint with PBR is larger than the counterpart without PBR. Tension strength equations were proposed for both CBPRH joints with and without PBR by nonlinear regression. The chord axial stress reduction factor was discussed and a modified equation originated from hollow joint was recommended for CBPRH joint. Connection efficiency was presented and compared among branch plate-to-rectangular hollow (BPRH) joint, CBPRH joint and CBPRH joint with PBR.

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“…he connection efficiency has been employed to compare structural advantages between different joint, which is defined as Eqn. (10). Substitute by Eqn.…”

Section: Connection Efficiencymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Tension Strength Prediction of Transverse Branch Plate-to-Rectangular Joint with Concrete Filling

Xiong

Liu

et al. 2020

Frattura Ed Integrità Strutturale

View full text Add to dashboard Cite

show abstract

“…The definition of joint strength adopted by the CIDECT design guides [14,15] i.e. lower of the maximum load and the load at the ultimate deformation limit was employed in other investigations [32,[34][35][36][39][40][41][42][43][44][45][46][47]. In addition, the strength equations in the design codes and guides [9][10][11][12][13][14][15][16][17], in general, already include material and joint partial factors or joint resistance factors.…”

Section: Remarks and Research Needsmentioning

confidence: 99%

“…The aforementioned investigations [32][33][34][35][36][37][38][39][40][41][42][43][44][45][46][47] indicate that applicability of design rules in EN 1993-1-8 [12] and the CIDECT design guides [14,15] for different HSS welded hollow section joints depends on the loading type, failure mode, steel yield stress, geometric parameters, chord preload ratio, weld type and weld size. However, the current research on the HSS welded joints is mostly focused on axially loaded welded uniplanar RHS T-, X-, K-and N-joints, and welded CHS X-joints as well as welded plate to CHS chord X-and K-joint.…”

Section: Remarks and Research Needsmentioning

confidence: 99%

Recent research advances of high strength steel welded hollow section joints

Lan

Chan

2019

Structures

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“…In a traditional steel tube truss structure, the chord and brace are generally designed to have the same type of cross sections, namely both of them are circular pipes or square pipes. Scholars have made a lot of researches on force characteristics of joints with various forms, and obtained a relatively systematic computation method [9][10][11][12][13][14]. In order to obtain a computational formula of axial rigidity of a Y-shaped round steel tube joint, Zhao [15] established a semicircular arch model based on an annular model and relations between joint deformation and axial rigidity, and derived a theoretical formula for axial rigidity of the joint.…”

Section: Introductionmentioning

confidence: 99%

Numerical analysis on dynamic stress and vibration for tubular joints of welded steel pipes under axial loads

Dong¹,

Cui²,

Sun³

et al. 2017

J. vibroeng.

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Reported researches rarely focus on dynamic stress concentration factors (SCF) of tubular joints between the chord and brace, where the chord is a square pipe, and the brace is a circular pipe. Tubular joints between a square pipe and circular pipe are widely applied in spatial structures as a support structure. Therefore, tubular joints of welded steel pipes under axial loads were studied numerically for determination of dynamic stress concentration factors (SCF). Finite element models were setup for a total of 165 tubular joints with various configurations, obtaining dynamic stress distributions of each model along the joint. Dynamic stress concentration factors on the brace and the chord were extracted respectively. Relations between sizes of dynamic stress concentration factors between the joint and structural parameters were discussed. The computational model was finally validated by the experimental test. The experimental curve was basically consistent with the finite element at the elastic stage of loading, indicating that the computational model at the elastic stage was very accurate. The paper mainly studied dynamic stress distribution of the tubular joint of welded steel pipes under an excitation load at the elastic stage, so the finite element model could be used to replace experimental test. SCF was 180° symmetric under different parameters. This angle was located at the crown point of tubular joints, while the welded steel pipe structure was a symmetric structure relative to the longitudinal plane. In addition, the chord and brace had SCF peaks at the angles of 90° and 270° because the two points were located at the saddle point of the tubular joints. Under angles of 0° and 180°, the SCF had obvious valley values because the two points were located at crown points of tubular joints. Finally, the vibration performance of the tubular joint was also analyzed. Vibration displacement could be reduced obviously through reinforcement of tubular joints with the collar plates. Axial pre-tensile forces would increase vibration displacement on top and bottom positions of the chord pipe. This paper can provide an important reference for the improvement of the dynamic stress concentration of joints of welded steel pipes.

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Strength equations of longitudinal plate-to-circular hollow section (CHS) joints

Cited by 18 publications

References 2 publications

Tension Strength Prediction of Transverse Branch Plate-to-Rectangular Joint with Concrete Filling

Tension Strength Prediction of Transverse Branch Plate-to-Rectangular Joint with Concrete Filling

Recent research advances of high strength steel welded hollow section joints

Numerical analysis on dynamic stress and vibration for tubular joints of welded steel pipes under axial loads

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