Showing posts with label Article. Show all posts
Showing posts with label Article. Show all posts

Monday, June 19, 2023

WHAT IS REVIT AND WHO USES IT?




WHAT IS REVIT AND WHO USES IT?

Revit is a commercial building information modeling (BIM) software by the company Autodesk. It’s generally used by architects, structural engineers, mechanical, electrical, and plumbing (MEP) engineers, designers, and contractors. Autodesk Revit allows users to create, edit, and review 3D models in exceptional detail.

What Is the Difference Between Revit and AutoCAD?

Revit is often compared to AutoCAD, Autodesk’s CAD software that is also used in the AEC industry. However, while most AEC professionals use Revit and AutoCAD at the same time, these two are quite different.

AutoCAD is a design software that allows its users to create 3D and 2D drawings with the aid of a computer. On the other hand, Revit is used to build an intelligent 3D model with real-world information. For example, in AutoCAD, doors are just a part of a drawing. However, your Revit projects would feature an actual door model along with information about the material, pricing, etc.

REVIT FOR ARCHITECTS:

BIM tools have revolutionized architecture as we know it. Therefore, it comes as no surprise that most Revit users work in this field. Here, you can find just some of the things architects can do with Revit software.

Design and Documentation:



As we’ve already mentioned, Revit allows you to place real-life building components such as windows, walls, and doors instead of drawings, making a design more precise. Furthermore, it can help you generate floor plans, elevations, sections, details, and schedules. Before the BIM methodology was introduced, these tasks were both complex and time-consuming. Nowadays, thanks to BIM software such as Revit, the design process has become more straightforward and efficient.

Analysis:

With advanced analysis engines and access to performance data, Revit users can optimize the functionality of their architectural design. Furthermore, Revit can run highly accurate cost estimates and monitor the performance over the lifecycle of a project or building.

Visualization:

Another thing you can use Revit for is 3D building design visualization. Thanks to various rendering tools, you will be able to create construction documentation with cutaways, 3D views, and stereo panoramas. Furthermore, with Revit Interoperability and Autodesk’s 3ds Max software, you can access your building model in virtual reality.

Multidiscipline Coordination:

Finally, seeing that Revit is a multidiscipline BIM platform, architects can share their Revit models with structural engineers and construction professionals in real-time. This feature will not only speed up the design process and make team members more efficient, but also significantly improve the final product.

REVIT FOR STRUCTURAL ENGINEERS:

Architecture isn’t the only field that evolved thanks to the emergence of the BIM model. Namely, structural engineering also advanced thanks to Revit and its key capabilities. In fact, it’s almost impossible to become a relevant structural engineer without basic knowledge of Revit. Here is what engineers can do with it:

Reinforcement Detailing:

With Revit and its various add-ons and plugins, you can create 3D reinforcement designs in an advanced BIM environment. Furthermore, you can produce reinforcement shop drawings with rebar schedules.

Construction Documents:

Through Revit, you can create more thorough and accurate steel and concrete designs. Furthermore, thanks to the comprehensive building database, all of the elements from Revit models will correspond to real-world objects and materials. Therefore, other stakeholders and customers will be able to perceive your plans more vividly.

Structural Analysis:

Revit also allows you to conduct a cloud-based structural analysis while you continue to work on your construction project. Furthermore, you can run a few parallel analyses and analyze your Revit model partially or fully. Finally, Revit allows you to choose the format of the analysis results and what to do with them.

Linking With Steel Fabrication:

The interoperability between Revit and Advance Steel will provide you with a smooth BIM workflow from steel design to fabrication. Furthermore, Revit allows you to model connections in more detail using either parametric or custom steel connections. These features will not only increase the productivity of structural engineers but also significantly reduce mistakes in construction projects.

REVIT FOR DESIGNERS AND CONTRACTORS:

BIM 3D modeling has also helped MEP designers and contractors become both more effective and more efficient. Revit MEP helps employees dealing with mechanical, electrical, and plumbing planning and construction coordinate with other team members and fulfill their tasks as accurately as possible. Below, you’ll find what to expect from Revit if you are a part of the MEP industry.

Integrated Design:

Unlike CAD software, Revit allows you to streamline the engineering design process. Therefore, you can coordinate and communicate with architects and engineers before construction begins. Thanks to this level of automation, you are sure to come up with a solution that all stakeholders will accept.

Analysis:

Just like architects and structural engineers, MEP engineers also have various analysis tools at their disposal in Revit. These tools allow them to conduct simulations and run interference detection early in the process. Furthermore, you can use conceptual energy analysis data to examine annual energy costs and much more.

Documentation:

Revit also allows you to create, model, and document mechanical, electrical, and plumbing systems. Furthermore, these systems will be presented in the context of a full BIM project that includes architectural and structural components. Therefore, your documentation will be thorough and accurate.

Fabrication:

Finally, Revit helps MEP engineers create fabrication-ready models. Therefore, MEP contractors will immediately be aware of the materials and equipment needed for the production process. This fact, in turn, improves the workflow by reducing the communication chain.

REVIT PRICING:

After finding out how useful and important Revit is, you might be wondering about its price. First of all, we should note that perpetual licenses for Revit are not available. That being said, you can choose one of the subscription plans available on Autodesk’s webpage. The pricing of a single-user Revit license is shown in the chart below.

Subscription Plan Price
Annual subscription $2,545
Three-year subscription $6,870

Furthermore, if your line of work requires you to use other Autodesk software alongside Revit, you might want to consider Autodesk’s AEC industry collection. Architecture, Engineering & Construction Collection features various CAD and BIM software such as Revit, AutoCAD, and Civil 3D. These programs complement each other perfectly, especially since all of them can work with .dwg files.

Plus, the price of the bundle is much lower than if you were to buy all of these programs separately. In fact, you can save as much as $8,000 every year if you purchase it as a Collection.

Finally, you can buy Revit through an authorized reseller who will cater to your specific needs while also providing you with the same price. Plus, you get technical support. Microsol Resources deliver integrated solutions and services from implementation services to training that is needed to ensure our customer’s success.

IN CONCLUSION:

Although BIM isn’t a new concept by any means, it’s obvious that it is the future of the AEC industry. Hopefully, this article helped you become aware of the enormous potential of BIM software Revit and the way it can be utilized in architecture, engineering, and construction.

Source: microsolresources.com 

Sunday, June 11, 2023

The Power of Reversible Hydrogen Fuel Cells: Separating Hydrogen and Oxygen from Water


Introduction:

The quest for clean and sustainable energy sources has led to significant advancements in the field of hydrogen fuel cells. One of the key challenges in harnessing hydrogen as an energy carrier is the separation of hydrogen and oxygen gases from water. In recent years, reversible hydrogen fuel cells have emerged as a promising solution for this task. In this article, we will explore the workings of reversible hydrogen fuel cells and their role in efficiently extracting hydrogen and oxygen from water.

 

Understanding Reversible Hydrogen Fuel Cells:

 

Reversible hydrogen fuel cells, also known as reversible proton exchange membrane fuel cells (PEMFCs), are a variant of traditional PEMFCs. While conventional PEMFCs generate electricity from hydrogen gas, reversible fuel cells can operate in reverse mode, enabling the production of hydrogen and oxygen gases from water.

 

Mechanism of Action:

 

Reversible hydrogen fuel cells operate through a series of electrochemical reactions that take place within the cell. Let's dive into the detailed process:


1. Electrolysis Mode:


In the electrolysis mode, an external electrical current is supplied to the reversible fuel cell, initiating the splitting of water molecules into hydrogen and oxygen gases.

  • At the anode:

2H2O (liquid) → 4H+ (protons) + 4e- (electrons) + O2 (oxygen gas)

  • At the cathode:

4H+ (protons) + 4e- (electrons) → 2H2 (hydrogen gas)

 

When the electrical current is applied, water molecules at the anode are oxidized, releasing protons (H+) and electrons (e-). The protons migrate through a proton exchange membrane to the cathode, while the electrons flow through an external circuit. At the cathode, the protons and electrons combine, resulting in the production of hydrogen gas.


2. Fuel Cell Mode:

 

During the fuel cell mode, hydrogen gas and oxygen gas are supplied to the reversible fuel cell, which then generates electrical energy through the reverse reaction.

  • At the anode:

2H2 (hydrogen gas) → 4H+ (protons) + 4e- (electrons)

  • At the cathode:

O2 (oxygen gas) + 4H+ (protons) + 4e- (electrons) → 2H2O (liquid)

 

In this mode, hydrogen gas is oxidized at the anode, releasing protons and electrons. The protons migrate through the proton exchange membrane to the cathode, while the electrons flow through an external circuit, generating electrical power. At the cathode, oxygen gas combines with protons and electrons to form water.


Note: This animation from FREUDENBERG Youtube Channel will remove your confusion about Electrons migration and producing Electricity.



Efficiency and Advantages:

 

Reversible hydrogen fuel cells offer several advantages over traditional electrolysis methods for hydrogen production. Firstly, they are highly efficient, allowing for the conversion of electrical energy into chemical energy (hydrogen) with minimal energy loss. Secondly, these fuel cells can be integrated with renewable energy sources, such as solar or wind power, enabling sustainable hydrogen production. Furthermore, reversible fuel cells provide the flexibility to switch between electrolysis and fuel cell modes, making them versatile for various applications.

 

Conclusion:

 

Reversible hydrogen fuel cells represent a significant leap forward in the field of hydrogen separation from water. By leveraging the principles of electrochemistry, these innovative cells enable the efficient extraction of hydrogen and oxygen gases. With their high efficiency and adaptability, reversible fuel cells hold great potential for a sustainable and clean energy future, providing an eco-friendly alternative to traditional fossil fuel-based systems.

 

Once again, many thanks from ELBCAMPUS administration for providing us such an interesting subject with great practical methods.

 

Naeem Nekmal

Hamburg, Deutschland

June, 2023

Friday, June 9, 2023

Our Visit from IBA HAMBURG, Introduction and Purpose of this Innovative Building

IBA DOCK: A Hub of Innovation and Inspiration in Hamburg

Introduction:

The IBA DOCK not only houses the exhibition of the International Building Exhibition 2006-2013, but is also itself an exhibit of  innovative building and energy-saving technologies: the building is situated on an approximately 50-metre-long and 26-metre-wide concrete pontoon; the superstructures are made of steel in modular construction. This saves weight and makes it possible to remove a part of the superstructures in case of transport, so that the IBA DOCK can also navigate under low bridges. The IBA DOCK was designed by the Han Slawik Architectural Bureau in Hannover; the 10-month construction period was coordinated by the municipal development company ReGe Hamburg Projektrealisierungsgesellschaft (Project Realisation Company) mbH.

What is the purpose of the IBA HAMBURG?

  1. A Center of Inspiration: IBA DOCK is a place where architects, urban planners, researchers, and enthusiasts come together to share knowledge and inspiration. The dynamic atmosphere encourages dialogue, fostering the exchange of ideas that push the boundaries of architectural and urban design. Whether through exhibitions, workshops, or conferences, IBA DOCK sparks creativity and fuels innovation.
  1. Architectural Exhibitions: The exhibition spaces at IBA DOCK showcase an impressive collection of architectural projects, highlighting the latest trends and advancements in the field. From scale models to digital presentations, these displays immerse visitors in a world of visionary designs. Here, today on 08, June 2023 we witness the evolution of urban landscapes, explore sustainable building techniques, and discover groundbreaking concepts that redefine our perception of cities.
  1. Collaborative Workshops: IBA DOCK is not just a passive showcase; it actively engages visitors through interactive workshops and design charrettes. These collaborative sessions bring together architects, designers, and urban planners to tackle real-world challenges, brainstorm ideas, and propose innovative solutions. The workshops at IBA DOCK foster interdisciplinary collaboration, nurturing a spirit of cooperation and creativity.
  1. Future-oriented Conferences: At IBA DOCK, thought-provoking conferences and symposiums take place, exploring the future of urban development and architectural trends. Experts from around the world gather to share their insights, research, and experiences, shaping the discourse on sustainable cities. These conferences inspire attendees to think critically and envision a more inclusive, environmentally friendly, and socially vibrant urban future.
  1. Networking and Idea Exchange: IBA DOCK is a melting pot of ideas, where professionals and enthusiasts can network, forge connections, and find potential collaborators. From casual conversations over a cup of coffee to structured networking events, IBA DOCK cultivates an environment that fosters meaningful connections. These interactions often lead to innovative partnerships, further fueling the advancement of architectural and urban design.


Conclusion: IBA DOCK embodies the spirit of exploration, innovation, and collaboration that drives the architectural and urban design community in Hamburg. With its dynamic exhibitions, interactive workshops, inspiring conferences, and vibrant networking opportunities, IBA DOCK serves as a catalyst for change and progress. By bringing together visionaries and enthusiasts, it fosters a shared vision of sustainable, livable, and aesthetically pleasing urban spaces. Whether you're an architect, a student, or simply someone passionate about the future of cities, a visit to IBA DOCK promises to ignite your imagination and leave you inspired.

at last but not least, On behalf of all my classmates I am really thankful of ELBCAMPUS Management and Organizers especially Mr. Heornicke, Mr. Dolgij and Mrs Gesa von Maydell for such an Interesting class and site visits.

Naeem Nekmal

09, June 2023

Hamburg, Germany

Friday, February 28, 2020

How to Calculate Steel Quantity for Slab, Footing, and Column?

Estimation of steel reinforcement quantity for concrete slab, footing, and column, beams, etc. is crucial for the cost evaluation for the construction. Design drawings are used as a base for computing rebar quantity in different structural elements.

This article presents the steel quantity computation process for slabs, columns, and footings.

Calculate Steel Quantity for Slab

Obtain slab dimension and reinforcement details from design drawings as shown in Fig.1.
Compute the number of steel bars.

Main Steel Bars


No. of bars= (Slab length(L)/spacing)+1 Equation 1

Shrinkage and Temperature Steel Bars

No. of bars= (Slab length(S)/spacing)+1 Equation 2

In equation 1, the center to center spacing of main reinforcement steel bars are used and shrinkage and temperature bar spacing is used in equation 2.


Fig. 1: Types and arrangement of steel bars in one way slab

3. Calculate cutting length:

Main steel bars

Cutting length= clear span(S)+Ld+inclined length+2×45 degree bend Equation 3

Shrinkage and Temperature steel bars

Cutting length= clear span(S)+Ld+inclined length+2×45 degree bend Equation 4

Where:

Ld: development length which illustrated in Fig. 2.

Inclined length can found from the following expression:

Inclined length= 0.45D Equation 5


D=slab thickness-2*concrete cover-bar diameter Equation 6


Fig. 2: Bent up bars in slab

  • 3. Convert that length into kilograms or tons because steel bars are ordered by weight. The same equation used for both main and shrinkage and temperature reinforcement, but corresponding cutting length, number of bars, and bar diameter is used.

Main steel bars=No. of bars*cutting length*weight of the bar (/162) Equation 7

(/162) is the weight of steel which is derived from steel volume times its density which is 7850 kg/m3.

Calculate Steel for Footing


The size of the footing and its reinforcement details (bar size and spacing) shall be known. This can be achieved from design drawings. After that, the following steps will be taken to compute the steel quantity.

  • calculate the required number of bars for both directions.



No. of bars = {(L or w – concrete cover for both sides) ÷ spacing} +1 Equation 8

where L or W: length or width of the footing

  • Then, find the length of one bar

Length of bar = L or W–concrete cover for both sides + 2*bend length Equation 9

Where L or W is length or width of the footing
  • After that, compute the total length of bars which is equal to the number of required bars multiply by the length of one bar. If the same size of bars is used in both directions then you can sum up both the quantity of the bars
  • Convert that length into kilograms or Tons. This can be done by multiplying cross-section area of steel by its total length by the density of steel which 7850 kg/m3

The above calculation procedure is for a single reinforcing net. Therefore, for footings with the double reinforcing net, the same procedure need to be used again to compute steel quantity for another reinforcing net.

Calculate Steel Quantity for Columns

Achieve column size and reinforcement detailing from design drawings. Then, compute the quantity of steel in the column using the following steps:

Longitudinal steels

  1. Compute the total length of longitudinal bars which equal to the column height plus laps for footing multiply number of longitudinal bars.
  2. Convert that length into kilograms or Tons. This can be done by multiplying cross-section area of steel by its total length by the density of steel which 7850 kg/m3

Stirrups

  • Compute the cutting length of stirrups using the following equation

Cutting length=2*((w-cover)+(h-cover))+Ld Equation 10

where:

w: column width

h: column depth

Ld: stirrup development length

  • Calculate the number of stirrup by dividing column height over stirrup spacing plus one.

  • Estimate the total length of stirrup which is equal to stirrup cutting length times number of stirrups.

  • Convert that length into kilograms or Tons. This can be done by multiplying the cross-section area of steel by its total length by the density of steel which 7850 kg/m3.

Total steel quantity of columns equal to the sum of both main and stirrup steels.