Structural behavior of hybrid double-skin tubular FRP–concrete–steel column: state-of-the-art review

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
C. Pavithra ◽  
J. Revathy ◽  
P. Gajalakshmi
Keyword(s):  
State Of The Art ◽  
Structural Behavior ◽  
Steel Column ◽  
Double Skin

Hybrid double skin FRP – Steel column with rubberised concrete infill under axial loading

2021 ◽  
Vol 249 ◽  
pp. 113267
Author(s):  
Shovona Khusru ◽  
David P. Thambiratnam ◽  
Mohamed Elchalakani ◽  
Sabrina Fawzia
Keyword(s):  
Axial Loading ◽  
Steel Column ◽  
Double Skin

ADAPTIVE BUILDING EXOSKELETONS: A biomimetic model for the rehabilitation of social housing

2015 ◽  
Vol 9 (1) ◽  
pp. 134 ◽  
Author(s):  
Giuliana Scuderi
Keyword(s):  
Social Housing ◽  
State Of The Art ◽  
Fundamental Property ◽  
Second World War ◽  
Structural Behavior ◽  
Structural Interventions ◽  
World War ◽  
Building Systems ◽  
Definition Of ◽  
Second World

This research is an attempt to describe a new biomimetic model for the rehabilitation of social housing. In particular, the constructions built in Europe in the post Second World War period suffer of material and social degradation requiring architectural, functional and structural interventions. The analysis of the state of the art underlined the importance of the envelope in the definition of new performances and standards. Through a bio-mimicry approach, the paper shows the process leading to the definition of a building exoskeleton: a structural envelope able to solve complex sets of problems integrating different building systems. Adaptability results being a fundamental property to define an effective seismic and structural behavior but also to respond to changing user’s needs and environmental conditions. In the last part of the paper, information about feasible technologies and techniques to realize the exoskeleton are presented. Finally, the conclusions show the potentiality of the model if applied in critical contexts where intensive and diffusive interventions of recovery of social housing are needed.

scholarly journals Reactive Powder Concrete Beam's Behavior in Flexural : Review

2021 ◽  
Vol 14 (4) ◽  
pp. 113-131
Author(s):  
Sheelan Mahmoud Hama ◽  
Dhifaf Natiq Hamdullah ◽  
Shaho Mahmoud Hama
Keyword(s):  
Coarse Aggregate ◽  
Concrete Beams ◽  
State Of The Art ◽  
Flexural Behavior ◽  
Structural Behavior ◽  
Reactive Powder Concrete ◽  
Stress Strain Relation ◽  
Structural Applications ◽  
Bending Load ◽  
Reactive Powder

Reactive Powder Concrete can be considered  as a special type of concrete in which the coarse aggregate will be eliminated to get a homogenous microstructure with a maximum density for final result. Many researchers presented a state of the art review on reactive powder's production,  mechanical properties, durability, development and applications. But the review about structural behavior is hardly to found. Because of importance of this type of concrete and its structural applications. This paper focused on review the researchers that deals with structural behavior of reactive powder concrete beams under bending load. Also review the proposed design equations related with reactive concrete behavior.  Before starting a review of strength , stress-strain relation and  ductility are presented because of their importance and effect on structure behavior of beams under bending. According to review of previous studies the type of fibers and its content as volumetric ratio, type of pozalanic materials and its content , amount of longitudinal steel reinforcement  are main factors that affected the flexural behavior of  reinforced Reactive Powder Concrete

scholarly journals Technical and scientific aspects of dams in Brazil: a theoretical approach

2020 ◽  
Vol 15 (5) ◽  
pp. 1
Author(s):  
Admilson Da Penha Pacheco ◽  
Renato Filipe Faria Henriques ◽  
Paulo Marcelo Vieira Ribeiro
Keyword(s):  
Literature Review ◽  
Theoretical Approach ◽  
State Of The Art ◽  
Structural Behavior ◽  
Dam Safety ◽  
Design Codes ◽  
Performance Parameters ◽  
Monitoring Methods ◽  
Environmental Aspects ◽  
Safety Procedures

The safety of a dam is the result of a series of factors, including structural, geotechnical, hydraulic, operational and environmental aspects. In Brazil, Law No. 12.334 of September 2010 establishes the National Dam Safety Policy, which requires safety reports and monitoring inspections for existing dams. The inspection comprises a set of devices installed on the dam, which are used to assess the structural behavior based on performance parameters of the structure, such as displacements, flows, stresses, slopes and others. Dam auscultation procedures, historically, have been performed since the 1950s. Since then, there have been significant advances in instrumentation and dam auscultation methods. This work presents a theoretical approach on technical and scientific aspects of dams in Brazil, based on a state-of-the-art literature review, involving auscultation of dams in the context of design codes, concepts, instrumentation, safety, procedures and monitoring methods.

Steel Buried Structures: Condition, Deterioration, and Rehabilitation Approaches

2020 ◽  
Author(s):  
Robert Cichocki ◽  
Ian Moore ◽  
Kevin Williams
Keyword(s):  
State Of The Art ◽  
Steel Structures ◽  
The State ◽  
Structural Behavior ◽  
Steel Bridge ◽  
Buried Structures ◽  
Environmental Value ◽  
Maintenance And Rehabilitation ◽  
Bridge Structures ◽  
Bridge Crossing

Buried steel structures, commonly referred to as buried bridges, culverts, or soil-steel structures are a valuable bridge crossing solution. Owners manage their bridge assets by evaluating their condition and rehabilitating as required. Ontario’s resources for managing and rehabilitating buried steel bridge structures are limited, and an investigation into the maintenance and rehabilitation practice of Ontario’s assets demonstrates a lag in their maintenance and rehabilitation. Knowledge regarding rehabilitation of these structures is dispersed and unconcise, leaving owners challenged to understanding how to best manage and rehabilitate their assets. This paper investigates the age, condition, and rehabilitation of steel buried bridges in Ontario and reviews the commonly encountered deterioration and distress mechanisms along with the state-of-the-art rehabilitation practices. With an understanding of structural behavior, deterioration, and rehabilitation opportunities for structures nearing the end of their service lives, owners will be better equipped to effectively manage their inventory and leverage the economic, social, and environmental value of buried structures.

A Study on Experimental on Bending-Shear Behavior of Concrete-Filled Double Skin Steel Tubular Beams

2020 ◽  
Vol 986 ◽  
pp. 71-77
Author(s):  
Lee Seung Jo
Keyword(s):  
Restraint Stress ◽  
Concrete Strength ◽  
Maximum Load ◽  
Steel Tube ◽  
Diameter Ratio ◽  
Structural Behavior ◽  
Displacement Ductility ◽  
Failure Type ◽  
Double Skin ◽  
Outside Diameter

This study examined the effects of the inside-outside diameter ratio (Di/D0), concrete strength, and inside-outside reinforcement type of steel tube on the structural behavior of concrete-filled double-skin steel tubular (CFDT) beams. Towards this end, the failure type, load-deflection relationship, ultimate strength, and displacement ductility were compared and analyzed. The results showed that the maximum load-deflection and failure type are affected by the Di/D0 and the reinforcement method. Furthermore, the higher the Di/D0 was, the lower the restraint stress and maximum load became.

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