Results 61 to 70 of about 376 (194)

A safety-based evaluation of strut-and-tie methods for shear design of RC deep beams in accordance with international concrete codes

Engineering and Applied Science Research, 2020
On the basis of strut-and-tie models (STMs) in accordance with international concrete codes such as ACI 318-14, AASHTO LRFD, CSA A23.3, Eurocode2 and fibMC 2010, a safety-based evaluation of shear design methods for RC deep beams was performed and is ...
Duangtida Muendacha, Jaruek Teerawong, Panatchai Chetchotisak   +2 more
doaj   +1 more source

Experimental evaluation of optimized strut‐and‐tie models for a dapped beam

Structural Concrete, 2016
AbstractStrut‐and‐tie modelling constitutes a powerful tool for the design of complex structural reinforced concrete elements. It has been proved numerically that strut‐and‐tie (ST) models obtained using structural optimization methods produce designs that are more efficient.
Oviedo, R., Gutierrez, S., Santa María Oyanedel, Hernán   +2 more
openaire   +4 more sources

Influence of shear reinforcement detailing on the shear capacity of reinforced concrete beams

Structural Concrete, EarlyView.
Abstract Alternative shear reinforcement layouts that do not fully enclose the longitudinal tensile reinforcement can significantly improve the constructability of reinforced concrete (RC) members. However, their influence on shear transfer mechanisms is not yet fully understood. To address this gap, an experimental program comprising 10 shear tests on
Franz Untermarzoner, Michael Rath, Simon Leitner, Tobias Huber, Johann Kollegger, Patrick Huber   +5 more
wiley   +1 more source

Evaluating structural resistance and updating modeling uncertainties through testing

Structural Concrete, EarlyView.
Abstract The aging of infrastructure necessitates a robust and rational methodology for the assessment of existing structures. Design codes provide general models which cover different design scenarios and are thus overly conservative. Also, such design approaches lack field data and, if applied directly to existing works, often lead to unnecessarily ...
Miguel Fernández Ruiz, Peter Tanner, Nicola Tarque Ruiz, Binbin Zhou, Duarte Viula Faria   +4 more
wiley   +1 more source

Structural Performance of RC Beams containing Tension-Only Nodes

International Journal of Concrete Structures and Materials, 2018
Strut and Tie (S&T) models are used for the design of what are known as “discontinuity regions” in reinforced concrete (RC) structures. Building codes such as ACI-318 and Eurocode 2 do not give information on the nodes that only connect ties in S&T ...
Manuel Alejandro Fernández-Ruiz, Luisa María Gil-Martín, Enrique Hernández-Montes   +2 more
doaj   +1 more source

Refinement of Strut-and-Tie Model for Reinforced Concrete Deep Beams

PLOS ONE, 2015
تُستخدم العوارض العميقة بشكل شائع في المباني الشاهقة والهياكل البحرية والأساسات. وفقًا للعديد من الرموز والمعايير، يوصى باستخدام نموذج الدعامة والربط (STM) كنهج عقلاني لتحليلات العارضة العميقة. يركز هذا البحث على STM الموصى به من قبل ACI 318-11 و AASHTO LRFD ويستخدم النتائج التجريبية لتعديل عامل فعالية الدعامة في STM للعوارض العميقة للخرسانة المسلحة ...
Mohammad Panjehpour, Hwa Kian Chai, Yen Lei Voo   +2 more
openaire   +5 more sources

‘From the Fields Into the Bars’: The Story of Israel's First Transgender Novel, The Cut (1977)

Gender &History, EarlyView.
ABSTRACT In 1977, an Israeli transgender woman, Judy Spotheim, published an autobiographical novel entitled The Cut. It describes the emergence of a trans community in the commercial‐sex areas of Tel Aviv‐Jaffa, hoping to humanise trans women (coccinelles). This article is the first to study the novel and present a biography of Spotheim.
Gil Engelstein, Iris Rachamimov
wiley   +1 more source

Mainland diversification and recent island lineages in the reduviid genus Tapirocoris: an integrative taxonomic framework with four new species

Insect Science, EarlyView.
Using an integrative taxonomic framework that combines COI DNA barcodes, geometric morphometrics and phylogeography, we revise the assassin bug genus Tapirocoris and recover seven well‐supported species, including four newly described cryptic species.
Ping Zhao, Qinpeng Liu, Minmin Ou, Huaiyu Liu, Yingqi Liu, Jianyun Wang, Miao Yang, Zhuo Chen, Wanzhi Cai   +8 more
wiley   +1 more source

Never Mind the Bollards: Exploring the Role of GCHQ, MI5, and the National Technical Authorities in UK Security Markets

The Howard Journal of Crime and Justice, EarlyView.
ABSTRACT The cultures and governance of security markets in the United Kingdom are often characterised through a paradoxical narrative of simultaneous state retreat and progressive advance. In the face of repeated recent high‐profile security failures, and global changes in material political economy, we argue that UK security governance is adapting to
Ben Collier, Jamie Buchan
wiley   +1 more source

Study on an Optimal Strut-And-Tie Model for Concrete Deep Beams

Applied Sciences, 2019
The optimal strut-and-tie models (STMs) of two typical irregular concrete deep beams were constructed using evolutionary structural optimization and compared with those of previous studies.
Haitao Chen, Lai Wang, Jitao Zhong
doaj   +1 more source