Application of Fea in civil engineering

 Team members:

Ganesh Mokate 45

Gaurav Mane 42

Rehan Sayyed 57

Prathamesh Borude 9

Rohan Thorve 67

Introduction

Finite element analysis (FEA) is a useful gizmo especially in the field of highly structured complex body engineering to find common analytical solutions. Think of a concrete beam that can be supported on both ends, considering the load on the center of the center. Deviations in the middle range are often mathematically determined, because the initial and boundary conditions are limited and overhead. However, once you move the same beam that applies, as in the middle of the bridge, the playing power becomes much harder to research with simple statistics.

Within the field of architecture and engineering, there are a number of problems where FEA tends to simplify the structure and understand its overall performance

elastomeric bearing pad pad design, FEA in engineering Finite element analysis of a bridge's elastomeric bearing pad with SimScale because advanced computer-assisted-engineering (CAE) sector, as well as FEA tools, are of great benefit to the engineering field. . the use of advanced FEA tools has not only led to new and more efficient products but has accelerated the development of more accurate design techniques.

FEA in Civil Engineering

Whether you are building a simple residence building or the next Burj Khalifa, understanding the ethics and reliability of your building is critical to ensuring the safety of its occupants.

Building analysis involves determining the performance of a building when faced with loads, such as those caused by gravity, wind, or perhaps in extreme cases natural disasters (e.g., earthquakes). Using the basic concepts of applied statistics, any building constructed is often analyzed — buildings, bridges, dams or perhaps foundations.

For example, within ideal conditions, a building like the Burj Khalifa would rise to 3m at its highest point. Imagine sitting on a very high floor and facing the very current movements. For more than one reason (including nauseous occupants), this type of movement should be controlled, and many structures use a damper to reduce movement. 


However, unlike the Taipei 101, instead of taking a key position with a damper, the team of builders and engineers responsible for Burj Khalifa instead made its own design in order to "confuse" the winds, and thus reduce emissions. to get this different system working.

On the other side of the spectrum, earthquakes are a major problem in the most densely populated parts of the world. When it comes to natural disasters, the increased number of building codes is less obvious and more likely to cause serious damage. for example, during the 1985 earthquake in Mexico City, much of the damage occurred in buildings that had between 8 and 15 stories. Tall or short buildings go much better. Why? The frequency of seismic waves occurs to mimic the natural frequency of medium-sized structures, causing them to slide violently, eventually leading to collapse. The video below provides a brief description of the dynamics and how it is downgraded.

While common solutions such as minute distribution methods, unit loading method, or compression strength formula, are often used to specify the performance of specific structures (such as steel beams, beams or roads). In unfamiliar buildings, we have to dig deeper. Initially, environmental engineers used laboratory experiments to unravel these design problems, especially in relation to the behavior of steel structures when they carry loads of wind and earthquakes. However, such reliance on laboratory tests was very expensive and not readily available. Therefore, building codes are developed. These codes make it easier for developers to define what kind of behavior is acceptable and safe for common buildings. However, with the advent of CAE tools available, designing, testing and ensuring the safety of a new construction project and its materials has become easier, faster, and much cheaper.


Precipitation, soil Erosion and hydrology 

The movement of the water, which is produced in the coastal areas are much more dominant than that of the inland waterway system. The generation of high-current, waves, tides and ocean currents, storm surges, tsunamis, wind, current, etc, complications, and, in addition to the water problem, the cause subsequent damage to, and destruction of marine structures. 

In this context, the problem of coastal currents in the boundary conditions, reflection and diffraction of the wave in the currents make it difficult for the engineers in the analysis in order to find a solution. Thus, the man-made coastal streams, the finite-element of the artificial fluid flow) and is based on the analysis of your account, the empirical method, it's a modern trend. 

Over the past few decades, the hydrological model has been used only in the coastal areas and river basins, in order to understand the movement of water into the porous soil, and, hence, its contribution to the water table. 

While for the linear static analysis of how the project is mostly based on the load of the river, the dam, the non-linear analysis, it is necessary to comprehensively consider the effects of the transport system, in which the inner surface of the pad, and the outer surface of the bump steel, the lining in contact with the water, the contact between the concrete and the steel, lining, etc 

New building materials

Innovative Building Materials Concrete has been around for a while. There are many factors such as the alkali-silica reaction in which research is ongoing. Why does concrete crack and how does formation affect the growth of cracks? Can we make a living for ourselves?

One of the most important ifs in the imitation of FEA is the precise determination of the fabric structures. this is often the case when novel research sites such as multiscale modeling inherit an image. using a multi-country model, one is in a position to use a small structure (or otherwise each material) to make concrete material (or otherwise its whole property).

Soil, Erosion and Hydrology The movement of water produced in coastal areas is more pronounced than inland waterways. Production of current high waves, waves, ocean currents, hurricanes, tsunamis, wind currents, etc. It brings hardship, and the water particles on the sides cause damage and destruction to marine structures.

In the context of coastal flow problems, boundary conditions of exposure and distribution of wave energy make it difficult for community engineers to research equals and recruitment solutions. Therefore, coastal modeling (moderate liquid flow modeling) and analysis based on price-environmental performance is a modern phenomenon.

Problem formulation

The problem Of the pipe joint study, various studies have been carried out on residential buildings, taking into account the vertical truss system.. Consider the vertical truss profiles with a height varying from 4m, 8m, 10m, 12m16m20m24m of the circular tubular load, the feedback link in the vertical tube of the economy, combined with the dead load, wind load, what is the structural support for the windows in a shopping center with SAP2000 as a medium. The design of the round pipe truss is divided into four categories - "the compression of the elements" Thrill elements ", which is a Likely context" Rays of the sun from above, an analysis of the most critical ones, which are supplied by the degree of the correlation strength is considered for the further analysis of the pipe joint is based on the Indian standards as the minimum angle between the chord and the brace is called, is 30, it is considered that the basis of the cost of the angle of 45, 60, and is considered to be the study of the behavior of the connection, when the angle is changed. In addition to this, vertical, spacing, etc., are also changes, and the horizontal distance of q to the changes of the joint link. The materials used for the The tubular connecting to represent the steel, the modulus of elasticity (E) = 2 × 105N/mm2, Poisson's ratio (µ) = 0.3, connection of type-C-the only plane in the same manual, the circular tubular connection. The analysis, the design of a tubular structure, which is carried out with the use of such codes ARE: 806: in 1968, IS: 800-2007, in accordance with the IS: 875 (Part2) -1987 (Deal, 2003) and IS: 1161: 1998, CIDECT: in 2008, for the purpose of the building.

Numeric, preparation and analysis

in this case, the matching of the K-pipe with the boundary conditions both at the end of the project, and the one on the other end of the chord, in the radial part, and to the ends of the chord assigned to it. The load is calculated on the basis of the analysis of the tube-shaped economy of the software, SAP2000, which is also used in the composition according to plan, in the form of the last invoices. 2) the angle between the chord and the firmament (θ) is assumed to be: 30,45,60, it is the vertical distance between the axes of the brackets will vary with the 0,5,10,15, etc., and the horizontal distance between the axis of the bracket (p) to vary as well. 


The element type to be used for FIVE-a-FIXED-SOLID185 - IT is used for 3D solid-state modeling of the structure. It is defined by eight nodes with three degrees of freedom at each node, which is closely related to the action, have a look, and the nodal directions of the X, Y, and Z. the element has the ductility, hyperelasticity, stress, strength, creep, large deflections and large deformation capacity. Solid 185 to deteriorate in the bricks, the lens, the tetrahedron to the use of non-sites.[19]

 HOWEVER SOLID186 is a three-dimensional 20-node higher-order solid elements, which indicates that the quadratic behavior is variable. The article, which is a set of 20 nodes with 3 degrees of freedom at each node, which is carefully steps through the observation of the X -, Y -, and Z-directions). The element has the ductility, hyperelasticity, stress, strength, creep, large deflections and large deformation capacity. It is mostly in-line with the non-traditional networks.

Result

Based on the above, the numeric formula in order to study the model in Ansys, in order to form a new K-the Design of the stress, a change in the angle of the horizontal distance between the points (q) and the vertical distance (s) from the center of the composition, with the following results are obtained (see Fig.4) in the boundary conditions, at the end of the chord is determined, the other is the radial, which is bounded





Conclusion

Despite the fact that the application of the foreign economic activity in the fields of civil engineering are numerous, and its potential continues to grow. In addition, it is expected to continue to grow and achieve a market capitalisation of more than us $ 10 billion by the year 2020 alone. The engineers realized that if they are living in is not the strongest of the structure, but it should always be. This is a long-term goal, the TECHNOLOGY has become more popular, and so it should be what it brings to the table, and, in particular, in today's virtual modeling tools like SimScale are nothing more than a tool for large enterprises and small and medium-sized businesses.

References
[1] M.A.Vyzantiadou, A.V.Avdelas Point fixed glazing systems: technological and morphological aspects Institute of Steel Structures, Department of Civil Engineering, Aristotle University; November 2003 

[2] Laszlo Gergely Vigh, Laszlo Dunai Finite element modelling and analysis of bolted joints of 3D tubular structures Department of Structural Engineering, Budapest University of Technology and Economics, Hungary; August 2004 

[3] Peter Trebilcock and Mark Lawson Architectural Design in Steel 

 [4] CSI educational services SAP Structural Design Guide Manual, Optimised Modelling and Design of Structures using SAP2000

 [5] Indian Standard code of practice for use of steel in general building construction IS: 806(1968) 

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