Zobrazeno 1 - 10
of 83
pro vyhledávání: '"Robert J. Peterman"'
Publikováno v:
Progress in Orthodontics, Vol 17, Iss 1, Pp 1-9 (2016)
Abstract Background Dolphin® visual treatment objective (VTO) prediction software is routinely utilized by orthodontists during the treatment planning of orthognathic cases to help predict post-surgical soft tissue changes. Although surgical soft ti
Externí odkaz:
https://doaj.org/article/4c37042ebdb2426caaf963ac5b1262e4
Publikováno v:
Fibers, Vol 3, Iss 4, Pp 539-559 (2015)
This research program is intended to verify the influence of using distributed external U-wrap CFRP anchorage to shift the failure mode from overall debonding to sectional flexural failure for concrete beams externally bonded with CFRP sheets. Premat
Externí odkaz:
https://doaj.org/article/27f24028cd56444a91ca8aa2561fcfca
Publikováno v:
Advanced Materials Research. 1165:65-86
The important characteristic in the creation of longitudinal splitting cracks in pretensioned concrete members has found to be the geometry of the pre-stressing wire indents. Longitudinal splitting along prestressing tendons can result in severe spli
Publikováno v:
Advanced Engineering Forum. 41:75-84
Prestressed concrete ties could develop end-splitting cracks along tendons due to lateral bursting stresses. The lateral bursting stresses can form due to Hoyer effect (change in diameter of the prestressing tendons due to Poisson’s ratio), the jac
Autor:
Adrijana Savic, B. Terry Beck, Robert J. Peterman, Aref Shafiei Dastgerdi, Aaron A. Robertson
Publikováno v:
Advanced Engineering Forum. 39:103-126
This research was focused on evaluating the influence of the different variables that affectsplitting in prestressed concrete members, particularly prestressed concrete ties. These include the thickness of concrete cover, release strength of concrete
Publikováno v:
2022 Joint Rail Conference.
A study was conducted to estimate the flexural capacity of monoblock tie under practical load and various ballast support conditions through a numerical approach. The current recommended design approach is maximum allowable stresses by American Railw
Publikováno v:
2022 Joint Rail Conference.
An experimental testing of prestressed concrete monoblock ties was conducted at Kansas State University to collect load-deflection data. The experimental results were used to validate the developed tie analysis and design computational tool. Present
Publikováno v:
2022 Joint Rail Conference.
The importance of the indent geometry of prestressing wire used in the manufacture of prestressed concrete railroad ties is well known. In particular, it has been shown to have a major affect on the magnitude of the transfer length. Important paramet
Publikováno v:
2021 Joint Rail Conference.
Prestressed concrete ties could develop end-splitting cracks along tendons due to lateral bursting stresses. The lateral bursting stresses can form due to Hoyer effect (change in diameter of the prestressing tendons due to Poisson’s ratio, the jack
Publikováno v:
Construction and Building Materials. 206:179-192
Splitting cracks in pre-tensioned concrete members often occur at the early stages after detensioning. To prevent these splitting failures, concrete members need to be resistant to crack growth at the strengths in which the beam is detensioned. In th