Structural analysis of a buidling using Robot Structural Analysis

AIM: Structural analysis of a building using Robot Structural Analysis

TASK 1:

HVAC SYSTEMS:

HVAC stands for Heating, Ventilating, and Air Conditioning, and HVAC systems are, effectively, everything from our air conditioner at home to the large systems used in industrial complexes and apartment blocks. A good HVAC system aims to provide thermal control and indoor comfort, and one that is designed using the principles of thermodynamics, fluid mechanics, and heat transfer.

Basically, HVAC means the various systems and types used for moving air between different indoor and outdoor spaces. In addition to that, HVAC also offers heating and cooling in both residential and commercial buildings.

HVAC systems ensure the air quality of a building. From residential buildings like houses and apartments to commercial buildings like offices and hospitals, all use an HVAC system.

The big air conditioner boxes that we might see on top of apartment blocks or offices are examples of (the visible part of) HVAC systems. They’re typically deployed in large industrial buildings, skyscrapers, apartment blocks, and large interior environments. They’re also an essential component of environments where there are health regulations requiring that temperature and humidity be kept at certain levels, using air taken from outside.

But heating and cooling systems we use in our home are also HVAC systems. They may take a different form, but many of the fundamental principles determining how they operate, as well as their efficiency, crosses over from the smallest of personal devices right through to the biggest commercial installations.

NECESSITY OF HVAC IN MODELLING A BUILDING:

HVAC system is a necessity, not a choice. HVAC systems play a crucial role in the maintenance of indoor air quality.

In research by Environmental Protection Agency, poor air quality was the largest factor for environment-related sickness. Efficient HVAC systems solve this problem. It circulates the air, regulates the temperature according to the weather, and removes harmful particles or gases from the air. These features greatly reduce the risk of allergies, lung-related problems, and seasonal flu.

HVAC units are systems that help to regulate the flow of air, heat, and ventilation in a building. Overall, the main objective of having an HVAC in a building is to make occupants in a building feel comfortable for them to become healthier, happier, and more productive.

Buildings need HVAC installed in them because:

HVAC systems are used for controlling the overall climate in a building. This means that when it’s warm outside, it balances the temperature to make the inside cooler or warmer during the cold season. The air conditioner works during the warmer days while boilers or heaters are turned on during the colder days.

 HVAC fosters enhanced productivity in offices as they feel comfortable. And when they are comfortable, their minds and body tend to function better, leading them to deliver better job results.

HVAC improves air quality in the building, helping make it appropriate for human breathing and comfort. It reduces humidity so occupants can enjoy a better atmosphere. This is most especially useful in buildings or underground spaces where ventilation is limited.

HVAC systems help you achieve more savings when it comes to energy bills. Gone are the days where we used fans and old-school air conditioners to feel cooler inside a building or fireplaces to keep us warmer. We also don’t have to waste energy when we forget to turn them off at night because modern HVACs are now automatic. Schedules and conditions can now be set. For instance, the newer air conditioner will stop working when it senses the temperature desired is already achieved and will start working again when it senses a drop in temperature. Some units can even tell when the occupants already left the premises and automatically shuts down. Since the air conditioner won’t work continuously, more energy can be saved.

TASK 2:

To design a HVAC system for each floors and to include the following components

1. Distribution centre
   b. Collector
   c. Ducts
   d. Blower
   and to assign the components to appropriate groups to complete modelling of the HVAC unit

Initially open a new mechanical template

Now using the link Revit option link the architectural model of week 7

Click on systems tab.

Select air terminal from the ribbon

Now select supply diffuser

The supply diffuser is placed at locations as shown.

In the same way the return diffuser is placed at locations as shown.

Now click on mechanical equipment and select the air handling unit.

Place the air handling unit in the required place so that no clashes with wall takes place.

Next we have to provide ducts.

For this, initially select the return diffusers and AHU unit and then click on duct.

Then generate the layout desired.

Similarly, duct for the supply diffusers was also created.

All the ducts for other rooms was also created as shown.

The HVAC system is developed for level 1.

Click on hide analytical model option for easy selection.

Select the HVAC systems from level one and copy it to the clipboard.

And then paste it into the next levels.

The HVAC systems are loaded for level 2 and in this way and in this way it was applied to rest of the floors.

RESULTS:

HVAC systems was developed for the model created.

TASK 3:

Use the add-ins tab to load plug-ins for robot structural analysis to your Revit software

Aim: To load plug-ins for robot structural analysis to Revit software using the add-ins tab.

Procedure:

 Click on the cart symbol provided at the top right corner of the window.

Now, an Autodesk app store opens.

In the search panel search for Structural Analysis toolkit 2020

Select the first one.

Download the application file.

And install it into your computer.

Now in the analysis panel we can see that that the ROBOT STRUCTURAL ANALYSIS option becomes available

RESULTS:

Autodesk the ROBOT STRUCTURAL ANALYSIS has been successfully installed on the computer.

TASK 4:

The need to assess buildings/analyse while modelling elements. Does design affect modelling in anyways?

Structural analysis is important in modelling elements because it allows you to calculate and determine the effects of loads and internal forces on a structure, building, or object. It is especially critical for structural engineers to ensure that they fully comprehend the load routes and the effects of the loads on their engineering design. It lets engineers and designers to confirm that a piece of equipment or structure is safe to operate under the projected loads.

Wind load, live load, and dead load are all forces that are applied to these elements. As a result, it is critical for the engineer to examine how each of these elements perform under these loads; this is the structural analysis' main focus. The modelling is influenced by the structural design. Structural analysis can be performed during design, testing, or after the building has been constructed, and it usually takes into account the materials used, the geometry of the structure, and the applied loads. Structural analysis primarily focuses on individual structural parts and the pressures they face. It will aid in the creation of better models by addressing faults with existing models and allowing for the incorporation of alternatives.

TASK 5:

To export the complete analytical model to robot structural analysis.
a. List your assumptions on what boundary conditions will be realistic for the analysis approach
b. Use the design standards to decide what loads must be applied to floorings based on the type of structure decided
c. List the load combinations and include them in the analysis model
d. Analyse the building and report the following results
i. Maximum Moment in each floor for all Load Combinations
ii. Maximum Displacement in each floor for all Load combinations
iii. Lateral Displacement in building for all Lateral Load combinations
e. After analysis, do you think you have a better approach or idea in modelling structural members?

a) Boundary conditions are points on a structure where the external force or displacement are known at the outset of the study. Every position on the border of our structure must have a known force or displacement for a structural analysis issue to be solvable. It's possible that the known force or displacement is of some magnitude or that it's zero. A zero boundary condition would exist, for example, if there are no external forces acting on some parts of the structure. When the displacement boundary condition is 0, the structure is maintained in place at that position.

b) Loads applied to floorings are:

• Dead load.
• Live load.
• Wind load.

c)

AIM: To create a list of load combinations that will be included in the analysis model.

PROCEDURE:

Initially open the week 7 assignment in the structural template and open the analytical model.

Click on manage tab and go to structural settings

Structural dialogue box appears and set the load combinations as shown.

In analyse tab click on boundary conditions and make it fixed state.

Now the boundary conditions are defined.

In the analyse tab choose loads and apply the loads.

Now for analysis go to analyse tab and click on ROBOT STRUCTURAL ANALYSIS option and then click ok.

The model is now opened in robot structural analysis

Go to Analysis tab select loads and then select apply loads.

Click  analyse and run the calculations.

d) Description of the model is provided here.

e) The analysis of the model gave better approach in modelling structural elements.

RESULTS:

ROBOT STRUCTURAL ANALYSIS was performed on the model.

TASK 6:

Energy analysis and its considerations while modelling in Revit

Impact of factor of sustainability ion the quality of your design

Energy analysis is a conventional method of evaluating how energy is used in operations involving the physical or chemical processing of materials, as well as energy transfer and/or conversion.

The following are the four main steps in an energy usage analysis:

1. Calculation of heat loss and gain in building spaces, as well as the heating and cooling loads on building systems.
2. Calculation of energy addition and extraction to meet temperature and humidity set points that may fluctuate.
3. Determination of main equipment fuel usage in order to meet the energy demand of the HVAC system
4. It compares the cost of equipment, fuels, electricity, labour, and retrofit components against the cost of investing in other ways.

In building models, energy stimulation can aid in the analysis of energy transport in, out, and through rooms and volumes. This data can assist designers in making more educated, cost-effective decisions that increase building performance while reducing environmental impact.

The geometry, climate, building type, envelope features, and active systems of a building are used to calculate predicted energy use (fuel and electricity) (HVAC and lighting).It takes into account the interdependencies of the building as a whole system.

• Through intelligent design, a sustainable design aims to totally remove negative environmental impacts. This notion can be applied to any discipline of design, including architecture. Regardless of the application, a sustainable design will strive to incorporate environmentally preferable results such as:
• Lower energy and water usage throughout the life cycle.
• Reduce greenhouse gas emissions or mitigate them through carbon offsets to reduce the impact of climate change. Activities that function as a buffer
• Reduce resource use via manufacturing without waste.
• Look for ways to use bio mimicry principles wherever possible by following the 3R concept (Reduce, Reuse and Recycle).
• Give preference to non-toxic materials.
• Emphasize quality and durability over price.