Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Zahrai, A."'
Publikováno v:
Structures. 30:62-74
In this paper, a drift-based seismic design (Dr.BSD) procedure is proposed by which a multi-story frame can be proportioned for a predetermined maximum inter-story drift uniformly distributed along all stories. While conceptually the proposed step-by
Publikováno v:
Applied Mathematical Modelling. 63:362-373
While classical matrix and finite-element methods are very powerful for structural analysis, some essential shortcomings such as not placing the transverse and axial loads in their actual locations on a member, as well as necessity of a large number
Publikováno v:
International Journal of Steel Structures. 18:880-890
Vertical link beam as a practical yielding damper is a kind of passive control device which dissipates seismic energy and thus reduces the rate of damage to structures through in-plane shear deformations. Proper stiffness, ductility and significant e
Publikováno v:
Mechanics of Advanced Materials and Structures. 25:592-599
This article, based on first-order shear deformation theory, presents the buckling analysis of a rotationally restrained orthotropic rectangular Mindlin plate resting on a Pasternak elastic foundation. Thus, the Mindlin–Reissner plate theory is emp
Publikováno v:
Steel and Composite Structures. 23:571-583
A kind of accordion-web RBS connection, "Tubular Web RBS (TW-RBS)" connection is proposed in this research. TW-RBS is made by replacing a part of web with a tube at the desirable location of the beam plastic hinge. This paper presents first a numeric
Autor:
Seyed Mehdi Zahrai, Seyed Amin Mousavi
Publikováno v:
Engineering Structures. 136:54-67
A passive mechanical device, called Slack Free Connection (SFC), is introduced by which hysteretic behavior of tension-only braces (TOBs) would be greatly improved in terms of energy dissipation capability. SFC has a mono-directional behavior such th
Publikováno v:
Engineering Structures. 223:111158
While lots of efforts have been made to develop accurate numerical models for prediction of ultra-low cycle fatigue (ULCF), it still needs more studies. As it is crucial to exactly define the mechanical behavior of steel for entire range up to failur
Publikováno v:
Journal of Building Engineering. 32:101513
A typical Buckling Restrained Brace (BRB) consists of a steel core and a mortar-filled tube to prevent buckling of the core. In BRBs, the mortar used in a casing considerably increases their weight. In another type of such braces, to reduce the weigh
Autor:
Mahrad Fahiminia, Seyed Mehdi Zahrai
Publikováno v:
Soil Dynamics and Earthquake Engineering. 137:106268
Knee braces located in the corner regions of beams and columns have high potential to be widely used in different structures under wind and earthquake loading. Since it is possible that even such braces experience buckling, some attention has been pa
Publikováno v:
Structural Engineering and Mechanics. 57:785-808
An innovative Reduced Beam Section (RBS) connection, called Tubular Web RBS connection (TW-RBS), has been recently introduced and its performance has been numerically investigated in some earlier studies. The TW-RBS connection is a kind of accordion-