1. Precast concrete is concrete that is cast and cured offsite then transported for installation, allowing for tighter quality control. Cast-in-place concrete is poured and cured onsite.
2. Floor and roof slab systems commonly use precast concrete slabs stacked atop columns. Flat plate slabs and flat slabs are suitable for spans up to 8-9m, while waffle slabs can span up to 15m.
3. Slab on beam and one-way joist floor systems are more economical for smaller spans of 3-9m, with joist floors suitable for heavier loads over longer 6-9m spans.
The aim of this PPT is to take an overview of the ‘membranes’ in cable and membrane structures. Before installation on site a membrane has to go through several stages right from design including the steps as form finding, load analysis and design of fabric geometry. The paper also talks about several shapes and forms a membrane can achieve and the principle behind the design of these shapes. Important aspect of membrane structure is availability of membranes in market. This paper accounts various available covering materials in the market and the criteria have to be considered before their installations on the site. Joinery plays a significant role in attaining the required shape and equilibrium. This PPT takes a review of significant junctions in a membrane structure.
The aim of this PPT is to take an overview of the ‘membranes’ in cable and membrane structures. Before installation on site a membrane has to go through several stages right from design including the steps as form finding, load analysis and design of fabric geometry. The paper also talks about several shapes and forms a membrane can achieve and the principle behind the design of these shapes. Important aspect of membrane structure is availability of membranes in market. This paper accounts various available covering materials in the market and the criteria have to be considered before their installations on the site. Joinery plays a significant role in attaining the required shape and equilibrium. This PPT takes a review of significant junctions in a membrane structure.
A short and elaborate Case Study on Membrane Structures for the course of Advanced Building Construction from students of 8th Semester Architecture at VNIT, Nagpur (January- April 2017)
The bundled tube structure meant that "buildings no longer need be boxlike in appearance: they could become sculpture." Hybrids. Hybrids include a varied category of structures where the basic concept of tube is used, and supplemented by other structural support(s).
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A short and elaborate Case Study on Membrane Structures for the course of Advanced Building Construction from students of 8th Semester Architecture at VNIT, Nagpur (January- April 2017)
The bundled tube structure meant that "buildings no longer need be boxlike in appearance: they could become sculpture." Hybrids. Hybrids include a varied category of structures where the basic concept of tube is used, and supplemented by other structural support(s).
framed tube structure
structure tube furniture
structure tube canada
tube structural system
tube structure design
tube frame building kits
tube structure buildings
tube framed buildings
interesting civil engineering topics
civil engineering topics for presentation
seminar topics pdf
best seminar topics for civil engineering
civil seminar topics ppt
civil engineering seminar topics 2019
seminar topics for mechanical engineers
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A short and elaborate Case Study on High Rise Buildings for the course of Advanced Building Construction from students of 8th Semester Architecture at VNIT, Nagpur (January- April 2017)
This slide explains different structural systems used in high rise buildings.what is the true meaning of high rise building ?
aims of high rise? objectives of high rise?
A reinforced concrete mat foundation is a common type of foundation system used in many buildings. They are a specific type of shallow foundation that uses bearing capacity of the soil at or near the building base to transmit the loads to the soil. Compared to an ordinary slab on grade, a reinforced concrete mat is much thicker and is subjected to more substantial loads from the building.
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Cosmetic shop management system project report.pdfKamal Acharya
Buying new cosmetic products is difficult. It can even be scary for those who have sensitive skin and are prone to skin trouble. The information needed to alleviate this problem is on the back of each product, but it's thought to interpret those ingredient lists unless you have a background in chemistry.
Instead of buying and hoping for the best, we can use data science to help us predict which products may be good fits for us. It includes various function programs to do the above mentioned tasks.
Data file handling has been effectively used in the program.
The automated cosmetic shop management system should deal with the automation of general workflow and administration process of the shop. The main processes of the system focus on customer's request where the system is able to search the most appropriate products and deliver it to the customers. It should help the employees to quickly identify the list of cosmetic product that have reached the minimum quantity and also keep a track of expired date for each cosmetic product. It should help the employees to find the rack number in which the product is placed.It is also Faster and more efficient way.
CFD Simulation of By-pass Flow in a HRSG module by R&R Consult.pptxR&R Consult
CFD analysis is incredibly effective at solving mysteries and improving the performance of complex systems!
Here's a great example: At a large natural gas-fired power plant, where they use waste heat to generate steam and energy, they were puzzled that their boiler wasn't producing as much steam as expected.
R&R and Tetra Engineering Group Inc. were asked to solve the issue with reduced steam production.
An inspection had shown that a significant amount of hot flue gas was bypassing the boiler tubes, where the heat was supposed to be transferred.
R&R Consult conducted a CFD analysis, which revealed that 6.3% of the flue gas was bypassing the boiler tubes without transferring heat. The analysis also showed that the flue gas was instead being directed along the sides of the boiler and between the modules that were supposed to capture the heat. This was the cause of the reduced performance.
Based on our results, Tetra Engineering installed covering plates to reduce the bypass flow. This improved the boiler's performance and increased electricity production.
It is always satisfying when we can help solve complex challenges like this. Do your systems also need a check-up or optimization? Give us a call!
Work done in cooperation with James Malloy and David Moelling from Tetra Engineering.
More examples of our work https://www.r-r-consult.dk/en/cases-en/
Explore the innovative world of trenchless pipe repair with our comprehensive guide, "The Benefits and Techniques of Trenchless Pipe Repair." This document delves into the modern methods of repairing underground pipes without the need for extensive excavation, highlighting the numerous advantages and the latest techniques used in the industry.
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Student information management system project report ii.pdfKamal Acharya
Our project explains about the student management. This project mainly explains the various actions related to student details. This project shows some ease in adding, editing and deleting the student details. It also provides a less time consuming process for viewing, adding, editing and deleting the marks of the students.
Immunizing Image Classifiers Against Localized Adversary Attacksgerogepatton
This paper addresses the vulnerability of deep learning models, particularly convolutional neural networks
(CNN)s, to adversarial attacks and presents a proactive training technique designed to counter them. We
introduce a novel volumization algorithm, which transforms 2D images into 3D volumetric representations.
When combined with 3D convolution and deep curriculum learning optimization (CLO), itsignificantly improves
the immunity of models against localized universal attacks by up to 40%. We evaluate our proposed approach
using contemporary CNN architectures and the modified Canadian Institute for Advanced Research (CIFAR-10
and CIFAR-100) and ImageNet Large Scale Visual Recognition Challenge (ILSVRC12) datasets, showcasing
accuracy improvements over previous techniques. The results indicate that the combination of the volumetric
input and curriculum learning holds significant promise for mitigating adversarial attacks without necessitating
adversary training.
Saudi Arabia stands as a titan in the global energy landscape, renowned for its abundant oil and gas resources. It's the largest exporter of petroleum and holds some of the world's most significant reserves. Let's delve into the top 10 oil and gas projects shaping Saudi Arabia's energy future in 2024.
Industrial Training at Shahjalal Fertilizer Company Limited (SFCL)MdTanvirMahtab2
This presentation is about the working procedure of Shahjalal Fertilizer Company Limited (SFCL). A Govt. owned Company of Bangladesh Chemical Industries Corporation under Ministry of Industries.
Hybrid optimization of pumped hydro system and solar- Engr. Abdul-Azeez.pdffxintegritypublishin
Advancements in technology unveil a myriad of electrical and electronic breakthroughs geared towards efficiently harnessing limited resources to meet human energy demands. The optimization of hybrid solar PV panels and pumped hydro energy supply systems plays a pivotal role in utilizing natural resources effectively. This initiative not only benefits humanity but also fosters environmental sustainability. The study investigated the design optimization of these hybrid systems, focusing on understanding solar radiation patterns, identifying geographical influences on solar radiation, formulating a mathematical model for system optimization, and determining the optimal configuration of PV panels and pumped hydro storage. Through a comparative analysis approach and eight weeks of data collection, the study addressed key research questions related to solar radiation patterns and optimal system design. The findings highlighted regions with heightened solar radiation levels, showcasing substantial potential for power generation and emphasizing the system's efficiency. Optimizing system design significantly boosted power generation, promoted renewable energy utilization, and enhanced energy storage capacity. The study underscored the benefits of optimizing hybrid solar PV panels and pumped hydro energy supply systems for sustainable energy usage. Optimizing the design of solar PV panels and pumped hydro energy supply systems as examined across diverse climatic conditions in a developing country, not only enhances power generation but also improves the integration of renewable energy sources and boosts energy storage capacities, particularly beneficial for less economically prosperous regions. Additionally, the study provides valuable insights for advancing energy research in economically viable areas. Recommendations included conducting site-specific assessments, utilizing advanced modeling tools, implementing regular maintenance protocols, and enhancing communication among system components.
3. WHAT IS PRECAST CONCRETE?
Precast concrete, sometimes called
“prefabricated”or “pre made”
concrete, is a concrete product that
is created offsite, then deliveredto its
project destinationfor final use.
4. Precast concrete products, such as Pole
Base, are created by pouring a cement
mixture into a mold that can contain
wire mesh, rebar or even prestressed
cable.
The filled mold is then cured in a
controlledenvironment to ensure
greater control overmaterial quality.
Because this all happens offsite, the
deliveredproduct is ready for use right
away, which can save crucial time on
construction projects.
5. Because precast concrete is so
customizable, it’s the ideal choice for
a variety of applications, both large
and small, including:
Light pole and sign bases
Pillars and columns
Parking structures
Culverts
Retaining walls
Building construction
6. WHAT IS CAST-IN-PLACE
CONCRETE?
Cast-in-place concrete, also known as
“site-cast”or “poured-in-place” concrete,
is poured and cured onsite in the
concrete’s finished position.
For specific applications, this type of
casting can be ideal. For example, some
foundations and other very large concrete
components would be difficult to transport
between a concrete plant and job site,
making cast-in-place concrete more
feasible.
7. Cast-in-place concrete is also commonly
used for small projects. Precast concrete
pricing scales with projects, so smaller projects
can actually cost more.
In these cases, cast-in-place concrete may
be preferred. But overall,precast concrete is
the best choice for building foundations with
structural integrity and dimensions built to your
precise specifications.
8. ADVANTAGES OF PRECAST CONCRETE
1. Simplified material inputsand cost
2. Less time needed to install
3. Cost-effective for large projects
4. Stronger than cast-in-place concrete
5. Higher-quality control
9. COMPOSITE CONSTRUCTION
Composite construction is widely
recognized nowadays an efficient way
of enhancing the structural
performance of steelwork by ensuring
that, when used in association with
concrete, the two materials act as a
unit.
11. WHAT IS FLOOR AND ROOF SLAB SYSTEM?
It normally requires fewerjoints than other types of
precast building systems.
Typically, columns are erected first, but not
necessarily for the full height of the building.
Near the base of the columns, floor slabs are cast
in succession, one atop another, with a parting
com-pound betweenthem to prevent bond. The
roof slab is cast last, on top.
Usually, the construction is flat plate, and the slabs
have uniform thickness.
12. TYPES OF ECONOMICAL FLOOR AND
ROOF SLAB SYSTEM
FLAT PLATE SLAB FLOOR SYSTEM
Flat plate systems are directly supported by
columns and suitable for span of 6-8m with life
load of 3-5KN/m2.
This type of floor system is adopted mainly for
hotels, hospitals, multifamily residential buildings.
The most outstanding advantages of flat plates
include fast construction, simple and low
formwork cost, flat ceiling that reduces finishing
cost.
13.
14.
15. FLAT SLAB SYSTEMS
Flat slabs are similar to flat plate apart from
thickening of flat slabs around columns
which are provided to improve shear
capacity of this floor system.
Flat slabs are economically viable for spans
range from 6 to 9m and live loads range
from 4 to 7 KN/m2.
This type of floor system is suitable for the
case where punching shear stress prevent
the use of flat plates especially when
relatively shallow slabs are intended. It
shouldbe known that thickening of floor
system around columns (drop panels)
increase the cost of formworks.
16.
17.
18. WAFFLE SLABS
It is consist of reinforcedconcrete slab
and evenly distributed waffle slab in two
directions. The slab around columns is
solidto provide shear resistance in
column area.
Waffle slabs are economically
appropriate for spans of 9 to 15m and live
load of 4 to 7KN/m2. The ultimate load
carrying capacity of this floor system is
greater than of flat slabs, but cost of its
formworks is substantially high.
19.
20.
21.
22. SLABS ON BEAMS
This type of floor system is economically
viablefor spans ranges from 6 to 9m and
live load of 3 to 6KN/m2.
The beam increases the relative stiffness of
the floor system and hence the deflection
is declined, but the cost of formwork is
increaseddue to beam formwork.
23.
24.
25. ONE-WAY SLAB ON BEAMS
This type of floor system is suitable for
span of 3 to 6m and live load of 3 to
5KN/m2.
This span range can be increased at the
expense of slight increase of deflections
and cost of the floor system.
26.
27.
28. ONE-WAY JOIST FLOOR SYSTEM
It consists of uniformly spaced concrete ribs spanning in
one direction,reinforcedconcrete slab constructed
monolithically with ribs and beams which are spanning
between columns.
On way joist floor system is economically suitable for
spans of 6 to 9m and liveload of 4 to 6KN/m2.
There are several advantages offered by this floor
system such as it is cost effectivefor long spans with
heavy loads, the overall depth does not require to be
increasedfor utility installation because they can be
placed between joists and pan voids reduces self-
weight. It is reported that of cost of formworks constitute
about 51 percent of the total cost of the floor system.