Results 121 to 130 of about 243,337 (305)
Influence of longitudinal reinforcement on development of normal cracks
Journal of Civil Engineering and Management, 2005 Using a model of normal crack propagation in reinforced concrete members, an analytical expression is presented for the stress intensity factor defining the intensity of stress in area at the crack tip. This factor is in linear relationship to the stress
Vidmantas Jokūbaitis, Petras Pukelis
doaj +1 more source
Micro-Assembly using Elastomeric Surfaces with Switchable Dry Adhesion [PDF]
, 2012 This work presents a micromanufacturing method for constructing microsystems, which we term ‘micro-masonry’ based on individual manipulation, influenced by strategies for deterministic materials assembly using advanced forms of transfer printing ...
Kim, Seok
core
Multiscale Seismic Vulnerability Assessment and Retrofit of Existing Masonry Buildings
Buildings, 2019 The growing concern about the protection of built heritage and the sustainability of urban areas has driven the reoccupation of existing masonry buildings, which, in the great majority of the cases, were not designed or constructed to withstand ...
T. Ferreira, N. Mendes, Rui A. Silva
semanticscholar +1 more source
Impact of half‐joint failures on RC girder bridges: A robustness quantification study
Structural Concrete, EarlyView.Abstract The robustness of bridge structures is critical to ensuring safety and service continuity, particularly in aging infrastructure exposed to degradation and unexpected loads. Reinforced concrete (RC) half‐joint bridges—widely built in Italy between the 1950s and 1970s—exhibit specific vulnerabilities due to inspection challenges, durability ...
Paolo Martinelli, Matteo Colombo
wiley +1 more source
The Baltic Journal of Road and Bridge Engineering, 2018 The primary aim of this article is to present design approaches for calculating the additional strengthening of masonry arches with the use of the Strut-and-Tie model and applicable standards and their comparison to the experiments.
Martin Zlámal, Petr Štěpánek
doaj +1 more source
Structural Concrete, EarlyView.Abstract The previous seismic events indicated the vulnerability of old reinforced concrete (RC) structures against earthquakes due to the absence of seismic detailing and capacity design specifications in such buildings. In this context, beam‐column joints (BCJ) of the existing RC structures built before the 1970s have exhibited poor structural ...
Peyman Sabbahfar +3 more
wiley +1 more source
Automation of small sample positioning for mechanical testing in hot cells
Acta Polytechnica CTU ProceedingsThe main objective of this paper is to propose an improvement and automation of the current mechanical testing procedure of concrete and rock samples in hot cells, i.e. in laboratories designed for radioactive sample testing.
Kateřina Hrdličková +3 more
doaj +1 more source
Effect of longâ€term loading and fire temperatures on mechanical properties of concrete
Journal of Civil Engineering and Management, 2005 During a fire, reinforced concrete structures are exposed to high temperatures and subjected to longâ€term action of variable and permanent loads.
Bronius Jonaitis, Vytautas Papinigis
doaj +1 more source
Dynamic investigation on the Mirandola bell tower in post-earthquake scenarios [PDF]
, 2016 After the seismic events of the 20th and 29th of May 2012 in Emilia (Italy), most of the monumental and historic buildings of the area were severely damaged. In a few structures, partial collapse mechanisms were observed (e.g.
Boscato, Giosue +6 more
core +1 more source