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An application of physics: simply supported bridges made of post-tensioned concrete and structural steel beam

Márquez Peñaranda, J F; Pineda Rodríguez, J R; Rojas Suárez, J P (Journal of Physics: Conference SeriesReino Unido, 2022-01-06)

Bridges represent an important application of physics capable of solving real transportation problems. Knowledge of convenience of different mechanical solutions when analyzing and designing bridge is needed. For these ...
Physical-mathematical model for determination of variation of internal forces in the simplified analysis of a beam

Márquez Peñaranda, J F; Cáceres Rubio, J R; Palacios Pabón, J D (2021-08-26)

. Springs are often taught in subjects of physics such as statics and solid mechanics belonging to civil engineering programs and mechanical engineering. This knowledge can be applied successfully in the modeling of ...
Relevance of the use of measurement units and orders of magnitude in the training of civil engineers

Márquez Peñaranda, J F; Cáceres Rubio, J R; Pineda Rodríguez, J R (Reino Unido, 2021-05-22)

Worldwide, a typical civil engineering program focuses in formal, natural, and applied sciences within an environment of ethical and social responsibility. Mathematics and computer sciences are the main formal sciences. ...

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An application of physics: simply supported bridges made of post-tensioned concrete and structural steel beam
...
Márquez Peñaranda, J F | 2022-01-06

Bridges represent an important application of physics capable of solving real transportation problems. Knowledge of convenience of different mechanical solutions when analyzing and designing bridge is needed. For these reasons, this work is focused on the study of convenience of using two types of bridges. Simply supported short-medium span bridges (30 m to 45 m) are usually excessively long when choosing reinforced concrete solutions and usually short for other types of structures such as cable-stayed or cantilever bridges. The suitability of simply supported bridges leads to the need of studying their cost benefit ratios. This work studies the cost benefit ratio for post-tensioned concrete beams and structural steel girders in simply supported straight bridges. Eight models built of type I sections were used in both cases to analyze the bridges using a software based on the stiffness method. Span of each bridge was set to 30 m, 35 m, 40 m, and 45 m. The convenience of each type of bridge was done comparing the total and the cost per linear meter of each solution (post-tensioned and structural steel). Comparison was done using material consumption, labor, and construction processes costs only. Also, allowable vertical displacement given by current bridge design standards was verified

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Physical-mathematical model for determination of variation of internal forces in the simplified analysis of a beam
...
Márquez Peñaranda, J F | 2021-08-26

. Springs are often taught in subjects of physics such as statics and solid mechanics belonging to civil engineering programs and mechanical engineering. This knowledge can be applied successfully in the modeling of structures and the consequent development of structural analysis. This paper presents the results of an investigation on physic-mathematical models which uses springs to replace complex connective conditions attempting to simplify the structural analysis process. The work focuses on the analysis of beams supported upon masonry walls, applying variations to the span lengths, sections and loads on them and considering realistic variations of the stiffness conditions required in the supports to meet the demands that these variations impose. For this, continuous beams with two spans with three types of section that are supported by walls that support different levels of restriction from different heights of the building of which they are part are modeled. It is concluded that there is an important influence of the slenderness of the beams and the degree of confinement of the supports upon the precision of the simplified model.

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Relevance of the use of measurement units and orders of magnitude in the training of civil engineers
...
Márquez Peñaranda, J F | 2021-05-22

Worldwide, a typical civil engineering program focuses in formal, natural, and applied sciences within an environment of ethical and social responsibility. Mathematics and computer sciences are the main formal sciences. The most widely used natural sciences are physics, earth science, and chemistry. On the other hand, a student who begins the professional cycle of the program must develop skills in applied science to solve practical problems. Complex processes and concepts requiring skills related to mathematics and physics must be developed. Such processes and concepts demand an impeccable handling of operations which involve diverse precision degrees, measurement units and a high variety of basic and derived quantities. This work describes the identification and classification of the main errors made by students when solving written exams applied in a natural environment of structural design courses. Data were collected during four years at a university in Colombia. Report of errors was grouped into five categories named modelling, quantities, regulation, signs, and others. Collected errors were evaluated qualitatively and quantitatively. In addition, each error was assigned to a risk level (high, intermediate, low) according to its potentiality to generate catastrophic errors in professional practice. The quality and number of observed errors seem to be correlated with the time of year in which they occur. On the other hand, the high-risk errors resulted to outweigh the two lower risk levels. This finding is worrying and serves as the basis for making an urgent call to review the way of teaching and its relationship with practical results. In synthesis, this study presents a novel manner to study the formation errors in engineering civil programs. In the near future, it is expected to use the results of this research to propose a procedure for the design and feedback of teaching strategies consistent with the evaluation objectives of each course.

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Browsing by Author "Márquez Peñaranda, J F"

An application of physics: simply supported bridges made of post-tensioned concrete and structural steel beam

Physical-mathematical model for determination of variation of internal forces in the simplified analysis of a beam

Relevance of the use of measurement units and orders of magnitude in the training of civil engineers

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An application of physics: simply supported bridges made of post-tensioned concrete and structural steel beam

Physical-mathematical model for determination of variation of internal forces in the simplified analysis of a beam

Relevance of the use of measurement units and orders of magnitude in the training of civil engineers

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Browsing by Author "Márquez Peñaranda, J F"

An application of physics: simply supported bridges made of post-tensioned concrete and structural steel beam ﻿

Physical-mathematical model for determination of variation of internal forces in the simplified analysis of a beam ﻿

Relevance of the use of measurement units and orders of magnitude in the training of civil engineers ﻿

Envíos recientes

An application of physics: simply supported bridges made of post-tensioned concrete and structural steel beam

Physical-mathematical model for determination of variation of internal forces in the simplified analysis of a beam

Relevance of the use of measurement units and orders of magnitude in the training of civil engineers

Portales Institucionales

An application of physics: simply supported bridges made of post-tensioned concrete and structural steel beam

Physical-mathematical model for determination of variation of internal forces in the simplified analysis of a beam

Relevance of the use of measurement units and orders of magnitude in the training of civil engineers