Showing posts with label Steel structure. Show all posts
Showing posts with label Steel structure. Show all posts

Common Bar Sizes for Concrete Reinforcing

Steel bar reinforcement, also referred to as rebar, comes in various diameters suitable for different structural concrete applications. This post outlines some of the most frequently used bar size diameters according to ASTM specifications.
Steel bar reinforcement, also referred to as rebar, comes in various diameters suitable for different structural concrete applications. This post outlines some of the most frequently used bar size diameters according to ASTM specifications.
#3 bar = 0.375 in diameter
#4 bar = 0.500 in diameter  
#5 bar = 0.625 in diameter
#6 bar = 0.750 in diameter
#7 bar = 0.875 in diameter  
#8 bar = 1.000 in diameter
#9 bar = 1.128 in diameter
#10 bar = 1.270 in diameter

Metric equivalents are also commonly used:

8mm rebar 
10mm rebar
12mm rebar 
16mm rebar
20mm rebar
25mm rebar
32mm rebar

Knowing standard rebar diameter designations can help select the appropriately sized bars for construction plans and bending schedules. The diameters listed above cover a wide range of reinforcing needs for slabs, beams, columns and other reinforced concrete elements.
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Download a Design Of Steel Structures pdf

Design Of Steel Structures 

Download a Design Of Steel Structures pdf document.

Design loads for buildings include dead and live loads. Dead loads consist of the weight of all permanent constructions, including fixed equipment that is placed on the structure. In bridges, it includes the weight of decks, sidewalks, railings, utility posts and cables, and the bridge frame. Live loads are dynamic and vary in time. They include vehicles, snow, personnel, movable machinery, equipment, furniture, merchandise, wind and earthquake forces, and the like. Once a building frame has been selected on the basis of dead and live loads, a check must be made using a combination of these loads. In some regions, a check must include the seismic forces. Member sizes may have to be modified from the initial selection to meet the wind and seismic forces. Live load tables are provided by almost all building codes. In unusual cases, the design load intensity is established to the satisfaction of a building official. However, the actual distribution of the live load for maximum effect is the responsibility of the design engineer. Table 1.3 lists live load intensities for various occupancies. 
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design of steel structure pdf

This lecture note constitutes the limitstate method of design for members
subjected to combined stress resultants asper stipulations of the draft IS: 800 –
LSM version where the draft code has dealt mainly with i) combined shear and
bending ii) combined axial tension and bending and iii)combined axial
compression and bending. These are explained in detail. The effect of reduction
in bending moment capacity has been explained. The effect of lateral torsional
buckling has also been explained. The concept of overall strength determination
has been explained. The effect of relevantfactors including equivalent uniform
moment factor has been discussed.

Concept of limit state design of beam columns
Design of members subjected to combined forces
beam column examples
Beam column connections....



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Design of steel connection - bolted connexion

Design of steel structure - example of bolted connexion

Connection classification : Classification based on the type of resultant force transferred: The bolted connections are referred to as concentric connections (force transfer in tension and compression member), eccentric connections (in reaction transferring brackets) or moment resisting connections (in beam to column connections in frames).


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Design of steel structure - complet lesson

Complet lesson in design of steel structure.


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beam column steel design - 5 files

Steel structure beams and columns - Lesson
5 files with pdf and ppt formats



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Design of tension members in bracing with excel

tension members are a type of structural steel sections. this sheet file will help you for design of  tension members in bracing.



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