A New Approach to the Design and Checking of Reinforced Concrete Sections

Author(s):  
M.Y. Rafiq ◽  
D.J. Easterbrook
2016 ◽  
Vol 6 (1) ◽  
pp. 19 ◽  
Author(s):  
Ahmad Salah Edeen Nassef ◽  
Mohammed A. Dahim

<p class="1Body">This paper was investigating the buckling problem of reinforced concrete columns considering the reinforced concrete as bi – modular material. Governing differential equations was driven. The relation between the non-dimensional transverse deflection and non-dimensional distance between centroid axis and the neutral axis "eccentricity" was drawn to enable the solution of the governing differential equation. The new approach was verified with different experimental results and different codes of practice.<strong></strong></p>


2003 ◽  
Vol 81 (18-19) ◽  
pp. 1957-1966 ◽  
Author(s):  
Matěj Lepš ◽  
Michal Šejnoha

2021 ◽  
Vol 4 (7(112)) ◽  
pp. 6-17
Author(s):  
Pavlo Vegera ◽  
Rostyslav Vashkevych ◽  
Yaroslav Blikharskyy ◽  
Roman Khmil

This paper reports the improved and verified procedure for calculating reinforced concrete beams affected by damage to stretched reinforcement when loaded. The main results from testing the reinforced concrete beams with damage in the stretched zone in the form of one hole in the reinforcement in the middle of the beam are given. The variable parameter of the study was the level of load resulting in the damage. It acquired values of 0, 30 %, 50 %, 70 % of the bearing capacity of control undamaged samples. Overall, the results of testing 12 samples are given. A new procedure has been proposed for taking into consideration changes in the mechanical characteristics of stretched reinforcement arising from its damage. This makes it possible to more accurately establish the bearing capacity of reinforced concrete bended elements affected by damage to their reinforcement during operation. The analysis of the calculation, compared with experimental quantities, led to a conclusion that the strain model could determine when the bearing capacity of reinforced concrete beams without damage and with damage to working reinforcement is exhausted. Based on the improved algorithm, the principle of using a strain model was proposed to establish when the bearing capacity of damaged samples, taking into consideration the effect of the load level, is exhausted. The theoretical estimation, considering when the bearing capacity is exhausted, showed results that are 3...21 % less than the experimental values, which ensures reliability of calculation of such structures. The proposed calculation provides a new approach to determining the bearing capacity of reinforced concrete beams damaged during operation. That, in turn, makes it possible to more accurately determine the residual bearing capacity of structures and increases the safety of their operation.


2014 ◽  
Vol 580-583 ◽  
pp. 3196-3203
Author(s):  
Gui Xiang Chen ◽  
Bing Hui Hao ◽  
Yi Qing Zhao

BIM is a kind of multidimensional model information technology based on CAD which has been applied in some large projects at home and abroad. The technology of BIM has the characteristics of 3D visualization, virtual design and collaborative design and so on. In this paper, ideas about applying BIM Technology in granary projects have been put forward from the design stage, project implementation stage and the stage of cost control by taking a big diameter underground silo of reinforced concrete for example, simulating the architecture, structure, process of construction and process of grain flowing of underground silos, then creating the model of architecture, dynamic construction model of 4D. The article provides a new approach of applying BIM technology to granary facilities.


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