[PDF] Top 20 Rev. IBRACON Estrut. Mater. vol.7 número3

... O terceiro número do sétimo volume da Revista IBRACON de Estruturas e Materiais está sendo publicado, com sete artigos sobre materiais e estruturas de concreto. A avaliação de momentos de segunda ordem em ... See full document

... ensaiadas 7 (sete) ligações internas laje-pilar e analisados os resultados das cargas últimas, issuração, deslocamento vertical, deformações das armaduras de lexão e do ... See full document

... The third issue of the seventh volume of the IBRACON Structures and Materials Journal is now pub- lished, with seven articles on concrete structures and materials. Evaluation of second order moments in reinforced ... See full document

... It is noteworthy the quality of MPT by its proximity from MEF, checked in the normal stresses diagrams. The maximum compressive stress compared in Table [7] reinforce this fact. The largest difference oc- curs in ... See full document

... Therefore, the objective of this paper is to describe the statistical analyses of the results of the acceptance control of the concrete used for the manufacturing of tetrapods at the B[r] ... See full document

... in the 1980s, the modelling of structural phenomena considering uncertainties became attractive. This approach allows the inclu- sion of uncertainties in several analyses in a consisten[r] ... See full document

... According to Carpinteri et al. [16], a substantial increase in the ultimate deformation of the beam is expected when compression rebars are introduced. This characteristic is captured by the pres- ent model, as seen in ... See full document

... The turbidity and concentration of iron showed a similar behavior to the apparent color, with signiicantly higher values at point 1 and a sig - niicant decrease as the water passed thro[r] ... See full document

... This study presents an alternative way of assessing the inal efforts of a structure, including second order effects, using both the coef - icients γ z and B 2. A range of medium-sized[r] ... See full document

... a) Used as plasticizer and set retarder, the admixture led to dif- iculties to grout penetration under high temperatures. Its effect was not observed for temperatures greater than 30ºC.[r] ... See full document

... O quarto número do volume de 2014 da Revista IBRACON de Estruturas e Materiais (Volume 7 Número 4) está sendo publicado. Este número traz oito artigos sobre temas relacionados com estru- turas de concreto e ... See full document

... Fragility curves are useful tools for assessing the vulnerability of bridges, describing the conditional probability that a structure or a structural component will meet or exceed a speciic damage state for various ... See full document

... has main and secondary ribs: main ribs on the direction of the small- est span and secondary ribs follow the direction of the largest span. The distances between the rib axes differ between the two direc- tions; they are ... See full document

... The codes used in this research estimate the punching shear re- sistance of slabs with holes adjacent to the column in a similar way, differing only in the shape, length and position of[r] ... See full document

... This research evaluates the behavior of slab-column connections in a reinforced concrete lat slab system and subjected to symmetrical loading, strengthened to the shear with carbon iber[r] ... See full document

... All concrete with addition of SBA showed a reduction of at least 10% in the properties related to permeability and an increase in compressive strength of up to 20% compared to standard [r] ... See full document

... The reinforcements’ strains were monitored using electrical strain gauges (EERs) manufactured by Excel Sensors with grid dimen- sions (3.18x3.18) mm² - model PA-06-125AA-120L, which were in- stalled on the steel bars. ... See full document

... Figure 4 shows the average compressive strength values (Rc) at 7, 28 and 90 days. It is conirmed that the mixture with 10% of replacement of Portland cement by MK and in the same w/b ratio reaches higher strength ... See full document

... With the computer program developed it is also possible to ind reinforcement values for processed inite element models. The program was used to design the reinforcement for a model of a subway station. The contour maps ... See full document

... The second issue of the Volume 7 of the IBRACON Structures and Materials Journal is now released. This issue brings an article on ire design of composite ribbed slabs, a topic not covered by the Brazil- ian ... See full document