[PDF] Top 20 Rev. IBRACON Estrut. Mater. vol.9 número1

... The irst issue of the 2016 Volume of the IBRACON Structures and Materials Journal (Volume 9 Number 1 February 2016) is now published. The issue begins with a study of reinforced concrete col- umns ... See full document

... Figure 12 – (a) Image of the first reference plane generated by the software and identification of beams; (b) Critical irregularity points over 100% of the area of the scanned facade vs[r] ... See full document

... ening of reinforced concrete beams with CFRP still has been de- signed using commercial packages based on the requirements of the 2002 release of ACI 440.2R guide [10], which allows the design of the strengthening ... See full document

... The present study evaluated the performance of a concrete mixture prepared with RCA for use as pavement based on perviousness, workability, and mechanical strength, in addition t[r] ... See full document

... The objective of this paper is to use a particle packing analytical model, the CPM (Compressible Packing Model), to verify the maximum packing density of cement and silica fume, which c[r] ... See full document

... In some circumstances, the structures are submitted to diferent loads on the project phase, whether by operational errors or proj- ect mistakes, as well as by changes in the structure conception regard to the necessity ... See full document

... Electrical resistance strain gauges positioned along the steel reinforcement and on the concrete surface at column mid-height were used to measure strains on the steel and concrete sur[r] ... See full document

... Table 9 presents the theoretical results for shear resistance ac- cording to the codes ACI 318 [3], EUROCODE 2 [4] and NBR 6118 [5] and the experimental results obtained from tests of the six pre- stressed beams, ... See full document

... Estamos publicando a edição outubro de 2016 da Revista IBRACON de Estruturas e Materiais (Vo- lume 9 Número 5, Outubro de 2016). Esta edição traz oito artigos sobre materiais e estruturas de concreto. O ... See full document

... From the linear interval (stress x strain) the elasticity modulus and the Poisson ratio were obtained, admitting as the linear interval values from 0.5 MPa to 30% of the average failur[r] ... See full document

... However, the design codes adopt a ixed set of partial safety fac- tors that are applied to all structures present in the implementation scope of the code. This assumption makes that diferent types of structural elements ... See full document

... A tied-arch strut and tie model consistent with the peak measured loads and based on the procedure proposed by Wight & Parra- Montesinos [9], was slightly modiied in order to estimate the ef- fective strength ... See full document

... The study indicated a clear necessity to relection on the subject, since there is no concern, or even, a lack of knowledge by the interviewed professionals regarding the care and proced[r] ... See full document

... In order to obtain an equation that represents the results related to the medium and maximum bond stress according to the concrete strength and the diameter of the bar, for Brazilian m[r] ... See full document

... Recycling is seen as an alternative in trying to remove from the en- vironment the waste produced daily by our society. In Brazil, about 54.38 million tons per year of municipal solid waste are produced [2]. However, a ... See full document

... Thus, many structures need equilibrium and kinematic relationships to be used in the structure’s deformed coniguration [4]. Thus, global stability veriication becomes a requirement in project design of re- inforced ... See full document

... the safety aspect. According to Bastos [6], in addition to the transmission of vertical loads to the foundation elements, the pillars are part of the brac- ing system responsible for ensuring the overall stability of the ... See full document

... The fourth issue of volume nine of the IBRACON Structures and Materials Journal (Volume 9 Num- ber 4, August 2016) is now released. The issue begins with a global stability analysis of a reinforced concrete ... See full document

... However, this type of process generates ashes that, dependingon the residue source, contain heavy metals and organic compounds in its composition, as in the case of calcined sewage sludge. An analysis performed on this ... See full document

... Figures 9 and 10, respectively, show typical failure modes in cylin- drical and hourglass-like ...(Figure 9(a)) and column-like (Fig- ure 9(b)), shear mode of failure was the only mode observed in ... See full document