[PDF] Top 20 Rev. IBRACON Estrut. Mater. vol.8 número6

... The last issue of the 2015 Volume of the IBRACON Structures and Materials Journal (Volume 8 Num- ber 6, December 2015) is now released. This number brings ive articles discussing topics related to concrete ... See full document

... The model proposed by Leukart and Ramm [8] adopts (step 1) a decomposition of the macroscopic strain tensor into its volumet- ric and deviatoric components (V-D split); (step 2) that the dam- age process is the ... See full document

... An initial estimative of lateral stifness of the models could be obtained by analyzing the drifts of Figure [8]. Note that the maximum drifts in the orthogonal X direction were slightly higher in relation to Y ... See full document

... Figure 8, the geometric characteristics of the experi- mental model are presented: span between supports of 4500 mm, expanded depth equal to 575 mm, diameter of the openings equal to 375 mm and spacing of adjacent ... See full document

... monly used methods that can perform bifurcacional analysis. Stratford et al. [7] used the inite element method to perform pre- buckling and postbuckling analysis to study all beam load-displace- ment path. Initial ... See full document

... In both tests performed by Goyal and Jackson [7], and in those performed by Kim and Yang [8], two columns with the same geo- metric characteristics and material (for example, the irst line of the Table, columns A1 ... See full document

... Several reports of experimental tests on concrete and ceramic blocks ([3], [4], [5]) indicate that it is not valid to simply add a grout- ed area to the hollow ungrouted section to determine the prism strength. According ... See full document

... It was used the algorithm “Calcula_TimeHistory” to generate the corresponding functions and this way to load the nodes of the computational model in order to obtain a time series of t[r] ... See full document

... The result graphics are the vertical displacement of the composite beam, bending moment and normal forces of each of the two beams and the connector shear force. The implementation was[r] ... See full document

... The presence of displaced semicircles suggests a non- ideal be- havior of the capacitor , leading to the introduction of the constant phase element (CPE) to the equivalent circuits. SAGUES et al. [8] introduced ... See full document

... Figures 8 and 9, a comparison is presented between design charts drawn for concretes of class up to C50 and for concrete class C90, respectively (both for the rectangular section called ... See full document

... These mixtures can be used like backill material in soil retaining walls replacing the clayey soil due to its better strength and shear behavior and low unit weight.. A numerical simula[r] ... See full document

... hydraulic conductivity values were similar for all the three mixes in both falling and constant head tests, indicating that the variation of the coarse aggregate gradation used in this[r] ... See full document

... As the ib Model Code 2010 does not present neither instructions to estimate the punching strength of slabs supported on rectan- gular columns, nor provisions to treat the cases where th[r] ... See full document

... There are already researches that present the infrared thermogra- phy as an eficient technique to evaluate defects at FRP/Concrete interface. One of them[7] uses water and air-illed debonds in dif- ferent sizes. These ... See full document

... Size effect is an important issue in concrete structures bearing in mind that it can inluence many aspects of analysis such as strength, brittleness and structural ductility, fracture [r] ... See full document

... cutting, the lateral surfaces of the specimens were sealed with sil- icone rubber in order to ensure one-dimensional water transport. The amounts of water absorbed by capillary action by the bricks were measured using ... See full document

... However, when analyzing a inished structure, a large number of these unknowns factors during the design phase, are already deined and can be measured, which justiies a modiication in actions increasing factors and in ... See full document

... The irst contribution is related to macromodeling research, which investigates the utilization and improvement of diagonal-strut mod- els. A number of important studies have been published since the 1970s. Relevant ... See full document

... The treatment of the progressive losses is more complex. These losses are interdependent, with the result of one altering the result of the other and visa-versa. The methods adopted by Prestress are those present in ... See full document