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quot;UltraHigh Performance Concrete for Precast Seismic

quot;UltraHigh Performance Concrete for Precast Seismic

"Ultra-High Performance Concrete for Precast Seismic ...

Ultra-high performance concrete (UHPC), characterized by high compressive and tensile strength, and superior bond properties, is a potential material that can

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Ultra-High Performance Concrete for Precast Seismic Bridge ...

Ultra-high performance concrete (UHPC), characterized by high compressive and tensile strength, and superior bond properties, is a potential material that can

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Ultrahigh-Performance Concrete for Posttensioned Precast ...

Moreover, the use of advanced concrete materials, such as ultra-high performance concrete (UHPC), can further reduce the seismic damage of precast

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Seismic performance of a novel interior precast concrete ...

Nov 01, 2020  Ultra-high performance concrete (UHPC) is a type of new composite material with the compressive strength of at least 120 MPa , ... Seismic performance of

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Seismic performance of precast concrete columns with ...

Experimental study on interfacial shear behaviour between ultra-high performance concrete and normal strength concrete in precast composite members Constr

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Precast Seismic Bridge Column Connection Using Ultra- High ...

Jan 01, 2020  In high seismic regions, prefabricated columns have seen limited applications because the connections generally coincide with the plastic hinge (PH) region, where

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A Perspective on the Seismic Design of Precast Concrete ...

A Perspective on the Seismic Design of Precast Concrete Structures in New Zealand ... with high interest rates and pressure for new building space in the mid

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Seismic Design Considerations for Precast Concrete ...

precast concrete is rapidly disappear­ ing in regions of high seismicity. Creating a Viable Precast Concrete Industry If precast concrete is to become a

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PREcast Seismic Structural Systems - PCI

The precast seismic systems used in the test building possess several novel features [Nakaki et al. 1999]. First, they all take advantage of the jointed nature of

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SEISMIC PERFORMNACE AND STRUCTURAL DETAILS OF

Limit States for Proposed Precast Segmental Concrete Bridge Columns The limit states for the precast segmental concrete bridge columns shown in Figures 4, 5 and

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Seismic Response of Precast Bridge Columns with Composite ...

Ultra-High Performance Concrete (UHPC) is an advanced cementitious composite material that exhibits high ductility and durability with superior mechanical properties, e.g. compressive strength in ...

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Seismic Performance Evaluation of Precast Girders with ...

Jul 31, 2014  Keywords: Ultra High Performance Concrete (UHPC); precast girder connection; Seismic performance; shake table test, Accelerated Bridge Construction (ABC). Abstract: The major objective of this study is to evaluate the seismic performance of two precast deck-bulb-tee girders with field-cast UHPC connections.A series of shake table tests were performed to analyze the seismic

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Numerical study on seismic behavior of precast bridge ...

A new earthquake resilient ultra-high-performance concrete (UHPC) bridge column was proposed and fabricated with precast segmental construction. ... The seismic performance of the precast columns ...

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Ultra-High Performance Concrete (UHPC): Fundamentals ...

Jul 14, 2018  Ultra-High Performance Concrete (UHPC) is a new class of concrete that is exceptionally strong and durable. It is not only ideal for traditional applications of regular concrete, but it also allows for new applications of concrete in areas such as contemporary design that involve thinner components or complex shapes.

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Precast Seismic Bridge Column Connection Using Ultra- High ...

Jan 01, 2020  In high seismic regions, prefabricated columns have seen limited applications because the connections generally coincide with the plastic hinge (PH) region, where major damage occurs. This paper proposes a simple and damage-tolerant precast column connection for use in medium and high seismic regions that uses ultra-high-performance concrete ...

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"New Connection Details to Connect Precast Cap Beams to ...

Shafieifar, Mohamadreza, "New Connection Details to Connect Precast Cap Beams to Precast Columns Using Ultra High Performance Concrete (UHPC) for Seismic and Non-seismic Regions" (2018). FIU Electronic Theses and Dissertations. 3857. https://digitalcommons.fiu/etd/3857.

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TECHNOTE Ultra-High Performance Concrete

Oct 11, 2011  Ultra-High Performance Concrete Introduction Advances in the science of concrete materials have led to the development of a new class of cementitious composites, namely ultra-high performance concrete (UHPC). The mechanical and durability properties of UHPC make it an ideal candidate for use in developing

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Experimental study on internal precast beam–column ultra ...

Therefore, UHPC has been used to connect precast deck panels [6] and precast piers [7]. For precast concrete (PC) frame structures, the beams and columns are usually precast in a factory, and they are connected at the beam–column joint in situ. Good joint integrity is vital for the seismic performance of concrete structures.

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Seismic response of precast bridge columns with composite ...

While robust seismic ABC connections have been developed using ultra-high performance concrete (UHPC), sole sourcing of robust commercial UHPC mixes is causing bidding issues and limiting the wide adoption of such seismic ABC connections. Thus, validating alternative solutions that use non-proprietary materials could help overcome such challenges.

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Lge‑ ‑ ec w onnec ontac ‑ UHPC rout

noncontact√lap-spliced√bars√and√ultra-high√performance√concrete√(UHPC)√grout.√One√1:2.5√ scale√specimen√was√fabricated√and√tested√to√investigate√the√seismic ...

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WHY ARE BUILDINGS WITH SHEAR WALLS PREFERRED IN SEISMIC ...

Jul 12, 2015  Reinforced concrete (RC) buildings often have vertical plate-like RC walls called Shear Walls (Figure 1) in addition to slabs, beams and columns. These walls generally start at foundation level and are continuous throughout the building height. Their thickness can be as low as 150mm, or as high as 400mm in high rise buildings.

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Seismic effect Roads Bridges

May 01, 2018  In the case of multi-span precast structures, the focus is on connections. Caltrans has invested over $5 million in research to support the development of seismic design practices that will provide robust performance of joints connecting precast elements under everyday (service-level) demands as well as a 1,000-year seismic event.

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Architectrual Precast Solutions Precast Concrete ...

The precast concrete sandwich panel, a feature in many contemporary cladding systems, consists of two precast panels separated by an insulated core and fixed together with mechanical connectors. The system provides high thermal resistance and offers a cost-effective way to provide cladding for new buildings or re-cladding for renovations.

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Structural Engineering - Lyles School of Civil Engineering ...

2008-2009, JTRP: High Performance Concrete Pavement for Indiana, Frosch. 2008-2012, JTRP/FHWA: Improving the Design of U-Beams for Indiana, Frosch w/ Kreger. 2008-2009, PCI: A New Connection System for Precast Bridge Deck Panels, Frosch.

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Performance of Ultra-high Performance Concrete Self ...

joints. This research assessed the seismic performance of post-tensioned precast segmental piers with ultra-high performance concrete (UHPC) through large scale laboratory testing. Pier specimens were constructed with the same configuration, except that the segment of the column right above the precast foundation had varying material and design ...

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Modeling seismic behavior of precast segmental UHPC bridge ...

Mar 09, 2020  Ultra-high performance concrete (UHPC) is regarded as one of the most innovative cement-based materials during the last 30 years (De Larrard and Sedran 1994), which is attributed to its superior material characters in terms of compressive and tensile properties (Graybeal 2007; Park et al. 2012), durability (Wang et al. 2014), and bond behavior (Yuan and Graybeal 2015).

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Seismic Performance Evaluation of Precast Girders with ...

Jul 31, 2014  Keywords: Ultra High Performance Concrete (UHPC); precast girder connection; Seismic performance; shake table test, Accelerated Bridge Construction (ABC). Abstract: The major objective of this study is to evaluate the seismic performance of two precast deck-bulb-tee girders with field-cast UHPC connections.A series of shake table tests were performed to analyze the seismic

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Structures Design Office --- Ultra High Performance Concrete

Overview. Ultra High Performance Concrete (UHPC) is part of FHWA's Every Day Counts intended to highlight some advantages of accelerated project delivery and long-term durability minimizing repairs and future disruption to traffic. Both the FHWA and FDOT support the use of accelerated project delivery techniques such as UHPC and Prefabricated Bridge Elements and Systems (PBES) as an economical ...

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Experimental investigation of seismic behavior of UHPC ...

The concept of an equivalent plastic-hinge model was used to evaluate the lateral behavior of precast segmental ultra-high-performance concrete (UHPC) bridge columns.

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Deployments FHWA

This interactive map displays in-service bridges in the United States and Canada that use ultra-high performance concrete. This map was created by the researchers and staff at the FHWA Turner-Fairbank Highway Research Center in McLean, VA, USA. For additional functions such as search and filter capabilities click the link below to launch the ...

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Sri Srithran - Projects

Use of Ultra-High Performance Concrete in Geotechnical and Sub-structure Applications (TR-558) Identification of the Best Practices for the Design, Construction, and Repair of Bridge Approach Sections (TR-481) Design of Jointed Precast Building Systems for High Seismic Zones, Phase I

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TAKTL® Ultra High Performance Concrete Facade + Wall ...

TAKTL manufactures Architectural UHPC facade cladding panels for rainscreen, curtainwall, and prefabricated wall assembly applications.

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Know-How about Precast Building Systems

Sep 11, 2021  There are a variety of precast concrete designs that can be used to achieve these goals economically and effectively. Hence for seismic resistance for high rise structures, it is important to provide an exclusive Lateral Load Resisting System (LLRS) which will supplement the behavior of moment-resisting frames in resisting the lateral load.

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Sri Sritharan - HomePage

His research interests include Earthquake-resistant design and analysis of structures, precast/prestressed structural systems, soil-foundation structure interaction , Ultra-high performance concrete and special topics in Wind Engineering and Wind Energy Systems. His research projects have been funded by the National Science Foundation ...

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CIVwinter2013 by Annex Business Media - Issuu

Dec 09, 2013  An innovative bridge near Thunder Bay, Ontario, incorporates ultra-high-performance concrete in both its precast elements and field-cast connections. By Vic

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Unfortunate Shear Wall Location - Structural engineering ...

Apr 20, 2018  Then some precast typical, non-redundant connection rusts out and a poor gal in shipping and receiving winds up with a 16,000 lb wall panel on her desk. - I put seismic damage at a distant third in terms of risk. Perhaps, sometime in the next 2500 years, there'll be an MCE earthquake and then the roof deck and/or mini panel will get torn up a bit.

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Strength and Durability of Ultra High Performance Concrete

UHPC, or Ultra High Performance Concrete, is a class of concrete defined by its exceptionally high strength and durability. It was developed in Europe in the 1980s for specialized applications that demand superior strength and corrosion resistance marine anchors, piers and seismic structures.

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Precast Solutions Fall 2011 by Travis Collins - Issuu

Oct 26, 2011  steel and precast solutions. The total cost of the George Street Bridge was. $11.6 million. This includes $9.6 million to construct the 36,000 sq ft of precast concrete arch structure over the ...

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