_ Question 2: T hank you for this explanation, it has been helpful to explain the difference in the check points. One way is to fine divide the elements, so that both the values match.
In the Loss table only at I & J end is provided, where as in tendon stress check, stresses are arrived at all the five points for each element and tabulated and hence accordingly the variation between both the tables. If the maximum stress point does not fall within the 5 points ( i, 1/4,1/2,3/4,j ) of the elements, you can note the difference between the values in Loss table and stress table. This is mainly attributed to the, points in which midas gives output results. You may note that these stresses do not exactly match. Point 1 refers to FDL1 i.e the stress at tendons at anchorage Point 2, is little tricky. I have attached a model file, in which I would refer how these values are derived for tendon stress check. Answer1 : If you may refer the help menu, following is stated. I was hoping you could point me in the direction of someone who has some expertise here who could help clear this up for me. Specifically, because the program doesn’t show how it has calculated the losses in the prestressing strands explicitly I am having trouble determining exactly how the program is coming up with the stress in the tendons (FDL1, FLL1).
The structure is designed in accordance with IRC guidelines.Question1 : I have a some questions I would like to ask. The design involves calculation of the section properties, primary and secondary moments, magnitude and location of the prestressing force, profile of the tendons, losses due to prestressing and shear stresses on the section.
At the construction stage, the PSC (prestressed) design of the span is carried out according to IRC standards to get output parameters such as principal stresses for prestressing tendon. The analysis was carried out to get various outputs such as bending moment, shear force, and time-dependent characteristics like creep and shrinkage. The paper discusses the analysis and design of the Composite Single Span PSC-I Girder Bridge under IRC loadings using MIDAS.
But, at the same time, there are several flaws in the structures due to the high technical requirements of bridge building, particularly the composite type of sections. In addition, new technology and equipment were gradually applied to road and bridge building. To facilitate traffic flow, composite bridges are increasingly being implemented on a wide scale for highway building. With the ever-increasing sophistication of the population and the usage of vehicles, the number of modern road and bridge construction projects in India is increasing.
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