نتایج جستجو برای: composite column

تعداد نتایج: 194888  

2017
Miguel Alonso Edinaldo N. dos Santos-Silva Damià Jaume

Notodiaptomus cannarensissp. n. is described from a reservoir on the Amazonian slope of the Ecuadorian Andes. The new species is unique among diaptomid calanoid copepods in the display of hypertrophied, symmetrical wing-like extensions at each side of the female composite genital somite. Furthermore, it displays a female urosome reduced to only two somites due to the incorporation of abdominal ...

2003
Julia Marson

To investigate their adequacy as energy dissipating elements during earthquakes, this paper reports on cyclic inelastic tests executed to determine the maximum strength and ductility of four concrete-filled circular steel piers joined to a foundation detail proposed to develop the full composite strength at the base of these columns. Column diameters considered were 324 and 406 mm, with D/t rat...

2000
A. Nanni G. Manfredi A. Prota E. Cosenza

Many opportunities are becoming available for using composite materials to strengthen/upgrade existing reinforced concrete (RC) structures. This paper focuses on a new technique for the seismic upgrade of RC beam-column connections in gravity load-designed (GLD) frames by the application (combined or not) of FRP rods and laminates. The FRP rods provide flexural strengthening, whereas the lay-up...

2016
Martin Faust Martin Boissier Marvin Keller David Schwalb Holger Bischoff Katrin Eisenreich Franz Färber Hasso Plattner

Databases commonly use multi-column indices for composite keys that concatenate attribute values for fast entity retrieval. For realworld applications, such concatenated composite keys contribute significantly to the overall space consumption, which is particularly expensive for main memory-resident databases. We present an integer-based hash representation of the actual values for the purpose ...

Journal: :Thin-walled Structures 2021

Brittle fracture is one of the principal disincentives to limit use ultrahigh-strength steels in tall buildings. This paper proposes a novel column-to-column connection without full penetration welding reinforced concrete-filled steel tubular composite columns. The describes an experimental investigation into flexural behavior proposed RCFST connection, which was manufactured using grades H-SA7...

Journal: :international journal of civil engineering 0
s. eshghi v. zanjanizadeh

this paper presents an experimental study on seismic repair of damaged square reinforced concrete columns with poor lap splices, 90-degree hooks and widely spaced transverse bars in plastic hinge regions according to aci detailing (pre.1971) and (318-02) using gfrp wraps. three specimens were tested in “as built” condition and retested after they were repaired by glass fiberreinforced plastic s...

2016
MOHAMMED A. MOUSSA MOHAMED M. MAROUF Mohammed A. Moussa

Introduction: Posterior reduction probably reduces only the periphery of the endplate with its strong annular attachments while the central area remains depressed allowing for efficient realignment of the spine, direct and indirect decompression. With distraction force, restoration of vertebral body height and partial clearance of bone or discal fragments from within the spinal canal by ligamen...

Journal: :CoRR 2015
Jan Schreck Peter Jung Slawomir Stanczak

We develop a framework that we call compressive rate estimation. We assume that the composite channel gain matrix (i.e. the matrix of all channel gains between all network nodes) is compressible which means it can be approximated by a sparse or low rank representation. We develop and study a novel sensing and reconstruction protocol for the estimation of achievable rates. We develop a sensing p...

Journal: :Advances in transdisciplinary engineering 2022

In this paper, a new combined form of Glass Fiber Reinforced Plastic (GFRP) column and steel fiber mortar reinforced damaged Concrete (RC) is proposed. With the help ABAQUS finite element software, model GFRP tube RC established. Based on experiment strengthening column, parameters such as winding angle tube, strength section loading mode are studied by numerical simulation. The results show th...

Journal: :Sustainability 2023

A detailed nonlinear finite element model was established based on completed experiments to investigate the behavior of a blind-bolted T-stub composite joint that connects beam concrete-filled square tube column. This accomplished by comparing experimental results and simulation using hysteresis curve, failure mode, plastic deformation strain development ensure reliability accuracy model. param...

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