Comparative Study of Staggered Truss System With and Without Shear Wall

Mistry, Dharmin B; Agrawal, Vimlesh V.; Patel, Vishal B.

doi:10.48175/ijarsct-1050

Cited by 1 publication

(2 citation statements)

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“…Zhou et al [ 22 ] indicated that with an increase in the open-web panel length of the truss, the top lateral displacement and ductility of the structure increase. Mistry et al [ 23 ] studied staggered truss systems with and without a shear wall by using ETAB software. The results showed that the staggered truss system with a shear wall is more efficient.…”

Section: Introductionmentioning

confidence: 99%

“…The results showed that the substitution of rotational friction dampers at the location of the plastic hinges can enhance ductility and reduce failure probability Zhou et al [22] indicated that with an increase in the open-web panel length of the truss the top lateral displacement and ductility of the structure increase. Mistry et al [23] studied staggered truss systems with and without a shear wall by using ETAB software The results showed that the staggered truss system with a shear wall is more efficient. It is not effective to enhance or improve the seismic performance of an ordinary staggered However, in a high earthquake intensity area, an ordinary staggered truss steel framing system may face the problem of insufficient ductility and energy dissipation capacity [17].…”

Section: Introductionmentioning

confidence: 99%

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Experimental and Theoretical Studies on Hysteretic Behavior of Friction Energy Dissipation Composite Chord under Quasi-Static Tests

Zhou

et al. 2023

Materials

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To improve the seismic performance of a staggered truss steel framing system, the basic force unit in the truss system is replaced by a friction energy dissipation truss. The difference between a friction energy dissipation truss and an ordinary truss is that the upper chord is a friction energy dissipation composite chord. In this paper, we investigate the effects of the number of bolts and the friction surface on the energy dissipation capacity of the chord by a quasi-static test on six composite chord specimens at a scale of 1:2. The results show that the hysteresis curves of friction energy dissipation composite chords are ideal rectangles, and the energy dissipation capacity is excellent. The more bolts there are in the specimen, the slower the energy dissipation capacity of the chord decreases. Among the different friction surface specimens, the energy dissipation capacity of the aluminum friction plate specimen decays the fastest, while the energy dissipation capacity of the shot-blasted treated specimen decays substantially after the first cycle. Friction plates can improve the stability of the hysteresis properties. Based on the test results, this paper proposes a calculation method for the ultimate bearing capacity of the composite chord, which provides a basis for the design of a friction energy dissipation truss. In addition, we studied the effects of different bolt clamping forces and slotted bolt hole lengths on the energy dissipation capacity of composite chords by establishing a finite element analysis. It was shown that as the clamping force of the bolt increases, the energy dissipation capacity of the specimen becomes stronger but the stability decreases. The energy dissipation capacity of the chord is close to a linear relationship with the slotted bolt hole lengths; thus, increasing the slotted bolt hole lengths within the allowable range of inter-story drifts can enhance the energy dissipation capacity of the chord. Finally, we propose the design method of the angle steel by analyzing the force of the chord.

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Section: Introductionmentioning

confidence: 99%