Results 21 to 30 of about 80,480 (279)

Member Discrete Element Method for Static and Dynamic Responses Analysis of Steel Frames with Semi-Rigid Joints

open access: yesApplied Sciences, 2017
In this paper, a simple and effective numerical approach is presented on the basis of the Member Discrete Element Method (MDEM) to investigate static and dynamic responses of steel frames with semi-rigid joints.
Jihong Ye, Lingling Xu
doaj   +1 more source

A robust finite element model updating method for pier’s structure with uncertainties in connections using particle swarm optimization algorithm [PDF]

open access: yesJournal of Structural and Construction Engineering, 2017
Conventional design of piers is done by assuming fully rigid connection of deck to piles. In practice, these connections are semi-rigid. Semi-rigid connections cause changes in the dynamic characteristics of the structure such as natural frequencies and ...
Mehdi Gholipour Feizi   +3 more
doaj   +1 more source

A Semi Rigid Novel Hydroxamate AMPED-Based Ligand for 89Zr PET Imaging

open access: yesMolecules, 2021
In this work, we designed, developed, characterized, and investigated a new chelator and its bifunctional derivative for 89Zr labeling and PET-imaging. In a preliminary study, we synthesized two hexadentate chelators named AAZTHAS and AAZTHAG, based on ...
Lisa Russelli   +6 more
doaj   +1 more source

Stability design of structures with semi-rigid connections [PDF]

open access: yes, 2010
The paper points out to the differences of the First order theory and Second order theory and of the significance in practical calculations. The paper presents theoretical foundations and expressions of calculations of impacts on the stability of ...
Igić Tomislav   +4 more
core   +1 more source

Assessment of stresses in reinforcement in the area of joints in composite steel-concrete slabs [PDF]

open access: yesArchives of Civil Engineering, 2021
The article draws attention to certain aspects of calculating the width of cracks and stresses in composite elements under bending, in which the slab is located in the tension zone.
Marcin Niedośpiał
doaj   +1 more source

On the Seismic Evaluation of Steel Frames Laterally Braced with Perforated Steel Plate Shear Walls Considering Semi-Rigid Connections

open access: yesBuildings, 2022
Steel plate shear walls usually do not satisfy the strong-column weak-beam design criteria, leading to larger column sections. On the other hand, rigid frame structures are typically constructed in low-rise to mid-rise buildings built in locations prone ...
Arsalan Majlesi   +5 more
doaj   +1 more source

Post Buckling Behavior of Prismatic Structural Steel Members with Semi Rigid Connections [PDF]

open access: yesEngineering and Technology Journal, 2016
In most designs of steel frames,beam-column connections are assumed either perfectly pinned or fully rigid. This assumption results in an incorrect estimation of the structural behavior of these frames.
Amer M. Ibrahim, Murtada A. Ismael
doaj   +1 more source

Semi-rigid tripeptide agonists of melanocortin receptors [PDF]

open access: yesBioorganic & Medicinal Chemistry Letters, 2009
A series of 30 RCO-HfR-NH(2) derivatives show preference for the mouse MC1R vs MC3-5Rs. trans-4-HOC(6)H(4)CH=CHCO-HfR-NH(2) (13) [EC(50) (nM): MC1R 83, MC3R 20500, MC4R 18130 and MC5R 935; ratio 1:246:217:11] is 11 times more potent than the lead compound LK-394 Ph(CH(2))(3)CO-HfR-NH(2) (2) and only 11 times less potent than the native tridecapeptide ...
University of Cincinnati, James L. Winkle College of Pharmacy, Cincinnati, OH 45267, USA ( host institution )   +9 more
openaire   +3 more sources

Classification System for Semi-Rigid Beam-to-Column Connections

open access: yesLatin American Journal of Solids and Structures
The current study attempts to recognise an adequate classification for a semi-rigid beam-to-column connection by investigating strength, stiffness and ductility. For this purpose, an experimental test was carried out to investigate the moment-rotation (M-
Iman Faridmehr   +2 more
doaj   +1 more source

Effect of semi-rigid locking screws on the stiffness of a fracture-fixation construct: A conceptual finite-element study

open access: yesAdvances in Mechanical Engineering, 2019
Strong stiffness provided by locking-plate system has resulted in nonunion and delayed union for long bone fracture. Longer bone plate can lengthen the working length to reduce the structural stiffness of the fixation device but will enlarge skin ...
Xiao-Hua Pan   +5 more
doaj   +1 more source

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