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Showing posts with label construction engineering. Show all posts
Showing posts with label construction engineering. Show all posts

Thursday, September 1, 2016

Some useful construction tips to organize bar bending schedule manually

Reinforced concrete is a popular structural material that is utilized extensively in construction engineering. Concrete is very powerful to withstand compressive stress but it is weak in tension. In order to combat tensional stresses, steel is required in concrete. The reinforcement in concrete refers to simple bars or rods bend and connected to a specified schedule with stirrups. The minimal diameters of bars which are utilized at site were Y10, Y12, Y16, Y20, Y25 and R6.

Steel is available in two basic types.
1. Mild steel (250 N/mm2)
2. Tor steel (460 N/mm2)

Bar code 
Implication of Reinforcement in Drawings

Engineering drawings is a language to disclose information thoroughly. So, there is a standard like 5Y10- 001- 150 to specify reinforcement in drawing such as, 5Y10- 001- 150:-It signifies 5 Number of Tor steel, 10mm Diameter, Bar mark 001, At 150mm CRS. At bottom face.

Bar location is changeable as below:

Notation for Slab :-
T1 -Top outer layer, T2 -Top second layer
B1 -Bottom outer layer, B2 -Bottom second layer

Cutting and Bending of Bars Reinforcement bars are preserved, sliced and bent in a steel yard in the site. Reinforcement bars are sliced into the desired lengths and bent into requisite shapes demonstrated on the bar schedule either by hand or through machinery.

Under manual processes, laborers applied the bar bending bench upon which robust nails and GI pipes are set with proper lengths to bend the bars for being utilized for smaller diameter bars. The larger diameter bars are bent through bar bending machine. Once the bending process is completed, all reinforcement bars are stacked and perfectly numbered as stated by the bar mark to avoid any issue at the time of fixing them.

To read the complete article, visit basiccivilengineering.com

Some useful construction tips to organize bar bending schedule manually

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Published By
Rajib Dey
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Wednesday, May 13, 2015

Formwork for Concrete Structures - An exclusive e-book for construction engineers

Formwork for Concrete Structures - An exclusive e-book for construction engineers
Garold (Gary) Oberlender and Robert Peurifoy have jointly published an exclusive e-book alias Formwork for Concrete Structures. The book contains total 544 pages and available in kindle edition. This construction book is very useful for construction engineers, civil and structural engineers, architects, and contractors as it briefly explains the formwork design concept, materials and methods for concrete structures.

Formwork for Concrete Structures (Fourth Edition) presents most up-to-date information on designing and producing formwork and temporary structures while the construction progression is going on. The book is specifically created with the newest structural design proposed by the National Design Specification (NDS 2005). The book highlights the latest improvements toward materials, money- and energy-saving policies, safety standards, OSHA regulations, and dimensional tolerances. The latest sample problems demonstrate realistic applications for working out loads and stresses. This book also contains most updated summary tables and equations as well as a directory of suppliers.

The readers will get current information on forms for footings, walls, columns, beams and floor slabs, concrete floor sytems, thinshell roof slabs, architectural concrete, concrete bridge decks, flying decks, and much more.

The book covers the following topics :-
  • Economy of formwork
  • Pressure of concrete on formwork
  • Properties of form material
  • Form design
  • Shores and scaffolding
  • Failures of formwork
  • Forms for footings, walls, and columns
  • Forms for beams and floor slabs
  • Patented forms for concrete floor systems
  • Forms for thin-shell roof slabs
  • Forms for architectural concrete
  • Slipforms
  • Forms for concrete bridge decks
  • Flying deck forms
The book is available in Amazon

Formwork for Concrete Structures

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Published By
Rajib Dey
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Friday, February 6, 2015

Create any 3d printable construction building instantly with modular architecture construction kits

Horsfall, a recognized digital designer presently associated with the construction engineer as a Senior Design Visualizer having expertise in commercial exteriors and interiors, has developed some exclusive modular 3D printed architecture construction kits based on Legos which are useful forarchitectural design of buildings. The motive for creating these construction kits is to produce the virtual designs of certain building through broken modular parts which are amassed to make diverse design patterns.

The technology consists of a printable Architectural model making kit useful for Architects, Design enthusiasts, model makers as well as kids and students that can be applied to generate, print and convey real-world buildable models for effective building designs.

This kit is created with interlocking modular components that fit effortlessly to each other for making design configurations easily and efficiently. Every part is designed to print precisely devoid of requiring supports or rafts on any FDM FFF 3D Printer.

Horsfall has created two dissimilar themed designs accessible for anyone to download without any cost and 3D print easily.

They contain the Victorian Town House Kit having 15 different STL files for diverse modularconstruction pieces, and the more traditional Original Architecture Kit, which comprises of 11 separate STL files for Beams, Columns, Floor Slabs, Stairs, Roofs, Walls, and Interior Partitions.

More of these types of kits will be available in the near future involving blocks to be applied for fabricating skyscrapers, industrial sheds, and modular cityscapes. There will be also an enormous database of building blocks in 3Dprintable formats, symbolizing several architectural styles which will be accessible to schools, designers, architects, hobbyists, and model makers.

Size of assembled model in the rendered previews is:

W: 120mm
L: 240mm
H: 166mm


The largest piece is the Entrance stairs. The dimensions are:

W: 56mm
L: 98mm
H: 26mm


For solving any queries, join 3D Printed Architecture Kits forum

Create any 3d printable construction building instantly with modular architecture construction kits
Image Courtesy: 3dprint.com

Create any 3d printable construction building instantly with modular architecture construction kits
Image Courtesy: 3dprint.com


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Published By
Rajib Dey
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Saturday, August 30, 2014

Construction Safety Management and Engineering – a handy book for beginners

Construction Safety Management and Engineering, the much cherished book edited by Darryl C.Hill, has produced its second edition.

This book has extensive coverage on implementation of safety and healthy programme of the construction companies. Some opinions are given to follow the market standards.

The present market survey represents that the second edition is as strong as the first edition. The authors of the books are some of the best know writer in the industry. Their immense technical know-how and handy experience made this book unparallel in the market. Some of them are John Gambatese [incentives; prevention through design (PTD)], Mike Behm (PTD), Nigel Ellis (fall protection), Mike Hayslip (excavation) and T. Michael Toole (PTD; regulations).

But the selling proposition of the book would be its veritable "who's who" of specialists. Many of the authors are considered premiere experts in their respective specialty area, but it is impossible to mention them all.

This book is for the new comers of the industry. The section – before work commence – is particularly helpful for the construction trainees. This section includes topic such as cost, insurance and risk, contractor selection, construction version of PTD, substance abuse and incentives and such many more. The article of John Gambatese thoroughly discusses their importance. This piece provides excellent knowledge about why the incentives should use or when it should not be used.

The next section considers legal aspects of construction safety, including relevant chapters on managing multiemployer work sites, subcontractor liability and regulatory requirements. These three chapters provide an excellent foundation for learning the critical drivers for construction operations where so many different employers are engaged and the employer is faced with almost countless opportunities for safety-context liability concerns in a regulated environment.

Next, the technical topic areas provide admirable depth of coverage and detail. On fall protection, Ellis aptly balances technical detail with the appropriate level of coverage demanded of a technical reference. Brian Clark and Sathyanarayanan Rajendran discuss steel erection and provide ample discussion of prework, rigging, fall protection, structural stability, fasteners and decking. No construction safety handbook would be complete without John Palmer's coverage of scaffolding, Philip and Ciaran McAleenan's chapter on ladders, and David MacCollum's discussion of cranes. Each of these chapters provides appropriate technical detail and supporting material such as illustrations and glossaries.

Kraig Knutson and Dennis Neitzel provide basic but essential discussion of electrical safety, which is an important aspect of all construction projects. Hayslip does not disappoint in the chapter on excavation and trenching safety. He offers a good level of technical detail and provides extensive illustrations of the concepts (e.g., trench boxes, sloping, angling, and pneumatic systems), specifications and regulations related to excavation and trenching protection systems. Samuel Gualardo provides thorough coverage of power-line concerns and, while one could argue that this topic should have been included with the electrical safety chapter, he does a good job of addressing the unique hazards and concerns of power lines on a construction site.

The demolition chapter by Dave Korman covers a topic that many may not think of when considering construction operations, which is usually a building process. However, demolition is not only a common construction activity; it often must be done to make way for the new construction.

In the category of "Other Considerations," several accomplished authors and practitioners discuss the essential topics that help to complete this well-rounded reference book, including ergonomics, work zone traffic safety control, healthcare, MSHA regulations and their applicability to construction, managing communications in a crises, construction safety and health certification, partnerships and alliances, safety and health issues in construction, the Spanish-speaking workforce and future safety issues.

This book is well balanced, well organized, thorough and accurate. Hill has done an excellent job of organizing and producing such a monumental publication and assembling nothing but the best in all of the authors. Anyone with construction safety responsibilities should have this book on his/her library shelf.


Construction Safety Management and Engineering

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Published By
Rajib Dey
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