seismic upgrading of masonry structures with frp

seismic upgrading of masonry structures with frp

12 Pages · 2002 · 664 KB · English

structures. As a consequence most of these structures need seismic upgrading work in order to ensure their conservation and functional use. A considerable amount of research has been conducted in the past to improve the mechanical behavior of masonry structures using a variety of reinforcement 

seismic upgrading of masonry structures with frp free download


SEISMIC UPGRADING OF MASONRY STRUCTURES WITH FRP A Borri, University of Perugia, Italy M Corradi , University of Perugia, Italy A Vignoli, University of Florence, Italy Abstract This study aims to provide a basic understanding of the behavior of masonry structures reinforced with Fiber Rein forced Polymers (FRP) epoxybonded to the masonry surfaces The main investigation consis ts of three parts: the first relates to the determination of shear strength of masonr y specimens reinforced using carbon and glass FRP Several specimens have been tested in order to determine the tangential modulus of elasticity and the shear strengt h of the masonry The second part of the investigation relates to the seismic upgrading of masonry vaults or arches The use of carbon and glass FRP as a reinforcing method for different kinds of vaults or arches, as well as the different possible positions of the FRP sheets, is analyzed, and some solutions are proposed to avoid peeling problem s and increase the efficiency of the bond surface The third and final par t of the investigation is concerned with a method of reinforcing masonry structures by wrappi ng FRP sheets around the external perimeters of buildings to avoid outofplane mechanisms Keywords: seismic upgrading, masonry structur es, shear strength, vault, FRP sheet, outof plane mechanism 1 Introduction Many unreinforced masonry structures are widel y present throughout Italy and other regions around the world These structures seem to suffer t he most severe damage during earthquakes Not only the prohibitive cost of replacing all substandard structures , but also the conservation of the historic heritage of the country, necessitates the dev elopment of innovative techniques for rehabilitating deteriorating structures As a consequence most of these struct ures need seismic upgrading work in order to ensure their conservation and functional use A considerable amount of research has been conducted in the past to improve the mechanical behavior of masonry structures using a variety of reinforcement techniques The shear reinforcement of walls was realized by employing metallic bars, or in jecting lime or cement based mortars In recent years, reinforcing concrete struct ures by the wrapping and bonding of FiberReinforced Polymers made of sheets, straps, belts or procur ed shells has became increasingly popular, but limited research has been conducted on the use of FRP reinforc ement in masonry structures In countries such as Italy, the use of brickwork as a building material has prompted a wide range of studies to investigate its structural behavior in a variety of applications As an example, Di Tommaso and others first applied FRP in order to upgrade the seismic behavior of belltowers [1] This paper contains an abstract of the most part of research carried out by the authors dur ing the years following the UmbrianMarchigiano earthquake of 1997 References are reported at the end of this paper 2 Shear reinforcement of masonry w alls Various kinds of intervention may be carried out to upgrade a wall Currently, the most wide spread technique consists of injecting limebased grout s or fixing a metal net on masonry surfaces under a concrete jacket Borri, Corradi and Vignoli applied th is technique in order to upgrade several twoleaf and threeleaf walls The results substantially showed that while the injection technique can be effective when used as a repair technique, its adoption as a preventive measure necessitates a previous, careful analysis of the masonry texture and of its characteristics, in order to under stand if the grout can, in effect, penetrate it

------------- Read More -------------

Download seismic-upgrading-of-masonry-structures-with-frp.pdf

seismic upgrading of masonry structures with frp related documents

DEPARTMENT of HEALTH and HUMAN - Centers for Disease Control and

507 Pages · 2008 · 6.61 MB · English

influenza, natural disasters, and terrorism, while remaining focused on the threats to health and local, tribal and territorial health network.

A Typology of Victim Characterization in Television Crime Dramas

33 Pages · 2010 · 278 KB · English

her analysis of one season of Law & Order, NYPD Blue, and The Practice. She found that only

Addressing FRTB with Oracle Financial Services Analytical Applications

9 Pages · 2017 · 324 KB · English

Integrated risk and finance data model ensuring compliance with Risk Data Aggregation as per BCBS239 Identify 12-month stress period over observation time. » Default risk charge Oracle Financial Services Analytical Applications' (OFSAA) FRTB solution enables banks to accurately measure,.

List of Developing Nations Afghanistan Albania Algeria Angola

2 Pages · 2011 · 538 KB ·

Algeria. Angola. Antigua and Barbuda. Argentina. Armenia. Azerbaijan Hungary. India. Indonesia. Iran, Islamic Republic of. Iraq. Jamaica. Jordan.

22 NAVAJO NATION COUNCIL | Office of the Speaker

2 Pages · 2013 · 295 KB · English

Law and Order Committee receives update regarding and an additional amount of $1.4 million to ensure operation through operations through the winter season.

Building Permits Granted Development Services Department City of San Antonio

84 Pages · 2012 · 272 KB · English

438 RICHLAND HILLS DR BLDG 10. DL CAMBRIDGE DEV GROUP, INC. (713)961-1336 x. 2251200. NEW 2-STORY MULTI-FAMILY APARTMEN. $947,363.00 2284202. 20x4=80 sq ft at csw, 171 sq ft at approach. $0.00. 3106 PIEDRA DE RIO. PRESIDIO CONST LLC. (210)679-8837 x. 2284203.

Department of History Postgraduate Handbook 2017-18

48 Pages · 2017 · 906 KB · English

Social and cultural change in early modern Ireland; the diffusion of print and the changing experience of . support for their modules (https://www.maynoothuniversity.ie/current-students). Social Media. The Department of History has a presence on social Format (e.g., film, video, DVD), that is, the

constraints facing the implementation of the greater new orleans urban water plan

5 Pages · 2015 · 480 KB · English

IMPLEMENTATION OF THE GREATER. NEW ORLEANS URBAN WATER PLAN. Annabel Visschedijk en Frans van de Ven*. On September 6th of last year the Greater New Orleans Urban Water Plan. (UWP) was presented. A comprehensive plan which addresses flooding caused by heavy rainfall and 

Rounding Algorithms for a Geometric Embedding of Minimum Multiway Cut

12 Pages · 2010 · 187 KB ·

between its embedded volume and minimum 3-way cut. and 5 we solve the 3-terminal case, giving matching up- cut of any embedded graph.

TIX Fun Deck (Group Area) Swinging pirate ship with a heart

1 Pages · 2010 · 3.41 MB · English

Midway Games Midway Games Desperados Hideaway (Group Area) all n) Arcade Smoking Area ATS ATS Tick et s S w e e t Join SpongeBob SquarePants and his Bikini Bottom