&lt;b&gt;A comparative experimental investigation of reinforced-concrete pipes under three-edge-bearing test: Spigot and Pocket and Ogee Joint pipes

Silva, Jefferson Lins da; Debs, Mounir Khalil El; Kataoka, Marcela Novischi

doi:10.4025/actascitechnol.v40i1.30860

Cited by 5 publications

(7 citation statements)

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“…By applying the data in the Table 1 to equations ( 3), ( 11), ( 12), ( 13), ( 14) and ( 15), it is obtained the design values (DV) of the ultimate and service forces for the pipes with DN 800mm, respectively 70.647kN/m and 24.796kN/m, and for the pipes with DN 1200mm, 80.085kN/m and 27.050kN/m. Basic statistics of the experiments of Silva [8] and Silva et al [9] are presented in Table 2.…”

Section: Resultsmentioning

confidence: 99%

“…Basic statistics for the experiments of Silva [8] and Silva et al [9] are determined in this paper, such as mean and standard deviation of the ultimate force (P ult ) and service force (P ser ) for both samples (DN 800mm and DN 1200mm) with 16 elements each. From such data, it is possible to define confidence intervals (CI) for the means of P ult and P ser .…”

Section: Discussionmentioning

confidence: 99%

“…The experimental results are shown in force-displacement graphics, with an aspect similar to the one exposed in Figure 4 [8,9]. Therewith, the values of maximum or ultimate force (P ult ) and cracking or service force (P ser ) are obtained from the experimental response of each pipe.…”

Section: Figurementioning

confidence: 99%

“…Therefore, statistical processes are used to compare the design values with the experiments presented by Silva [8] and Silva et al [9]. The model uncertainty is not quantified in this paper because Silva [8] and Silva et al [9] do not present sufficient data to dissociate the model uncertainty to the other ones, as the ones associated to materials and to the experimental procedure itself. Thus, resistance characteristic values are used to the materials to ensure feasibility of the accuracy evaluation of the design model in comparison with experiments.…”

Section: Diagram Of Internal Forces (After [2])mentioning

confidence: 99%

“…The experiments carried out by Silva [8] and Silva et al [9] were developed from a sample of 16 pipes with DN 800mm and a sample of 16 pipes with DN 1200mm. The reinforcement of all pipes are composed by a welded wire mesh of CA-60 steel, which the elasticity modulus is 210GPa.…”

Section: Three-edge-bearing Testmentioning

confidence: 99%

See 4 more Smart Citations

Statistical analysis of the design procedure used in reinforced concrete pipes

Floresta

Vieira

Mendes

et al. 2020

Rev. IBRACON Estrut. Mater.

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Structural design procedures are based on simplified hypotheses that attempt to approximate the actual behaviour. Depending on the adopted hypothesis, the design procedure may not satisfactorily describe the structural actual behaviour. Such condition occurs in the design of reinforced concrete pipes, where there are uncertainties related especially on the internal forces and the installation type of the pipe. Moreover, the main design hypothesis is that the cross section is plane and perpendicular to the deformed axis. Based on materials resistance principles it is known that this hypothesis is unsatisfactory to pipes with aspect ratio lower than ten. Note that the commercial reinforced concrete pipes usually present aspect ratio well below ten. In the light of the foregoing, the main objective of this paper is to analyse the accuracy of the design procedure for reinforced concrete pipes. Therefore, statistical processes were used to compare design values with experimental results. The comparisons in this paper showed that the design procedure results in oversized pipes.

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Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Figurementioning

confidence: 99%