Development of Reinforcement Based on ACI 318-14 Spreadsheet

Development of Reinforcement Based on ACI 318-14 Spreadsheet

 

Development length is certain minimum length of the bar required on either side of a point of maximum steel stress, in order to transfer the bar force to surrounding concrete through bond, without slip,so as to prevent bar from pulling out under tension. This is “development length or anchorage length”. Hooks,bends, mechanical anchorages can be used to supplement.

End anchorage may be considered reliable if the bar is embedded into concrete a prescribed distance known as the “development length” of the bar.  In a beam, if the actual extended length of the bar is equal or greater than this required development length, then no bond failure will occur.

If the actual available length is inadequate for full development, special anchorages ,such as hooks, must be provided to ensure adequate strength.

Methods for Determining the Development Length, ld
– The ACI allows the determination of the
development length by two methods:
• Tabular criteria (ACI Section 12.2.2).
• General equation (ACI Section 12.2.3).
– In either case, ld shall not be less than 12 in.
– The general equation of the ACI Code offers a simple approach that allows the user to see the effect of all variables controlling the development length.

A reduction in the development length ld is permitted where reinforcement is in excess of that required by analysis (except where anchorage or development for fy is specifically required or where the design includes provisions for seismic considerations).

The method for determining the development length in compression ld involves finding the the basic development length ldb and multiplying it by applicable modification factors.

 

Download Link

Steel Beam Design Excel Sheet with Gravity Loading

Steel Beam Design Excel Sheet with Gravity Loading

 

The Steel Beam module does not permit biaxial loading at the present time, so there are two potential approaches to this loading scheme:
One option is to do two separate Steel Beam runs.  One run would apply the gravity loads to the beam with the beam oriented “web vertical”.  The other run would apply the wind loads to the beam with the beam oriented “web horizontal”.  This would require that the user manually combine the results of the two runs using engineering judgment to come up with a final result.

Combined Tension and Shear in a Slip Critical Connection Spreadsheet

Combined Tension and Shear in a Slip Critical Connection Spreadsheet

 

Combined tension and shear in a slip critical connection must be considered when bolted connections subjected to both shear and tension must be checked for prying action, the interaction between tension and shear must be considered.
The AISC Specification for Structural Steel Buildings (AISC, 2010) presents interaction equations for bearing connections and for slip-critical connections. However, little guidance for applying these equations to prying action analysis has been available.
This spreadsheet will demonstrate how these interaction equations may be used in the prying action analysis presented in the 14th edition Steel Construction Manual (AISC, 2011) by comparing two methods. The Excel sheet is formulated in terms of Load and Resistance Factor Design (LRFD), but the principles are similar for Allowable Strength Design (ASD).

Concrete Pool Design Spreadsheet Based on ACI 318-14

Concrete Pool Design Spreadsheet Based on ACI 318-14

 

Concrete pool design for rebar at middle or equal of each face, is pool wall at inward soil pressure before restrained at top and pool filled. since the wall axial load small and sections under tension-controlled (aci 318-14 21.2.2), only check wall flexural capacities are adequate. since the slab at flexural & axial loads, the combined capacity of flexural & axial must be checked.

Wind Analysis for Shade Open Structure Spreadsheet Based on ASCE 7-16

Wind Analysis for Shade Open Structure Spreadsheet Based on ASCE 7-16

 

In order for a structure to be sound and secure, the foundation, roof, and walls must be strong and wind-resistant. When building a structure it is important to calculate wind load to ensure that the structure can withstand high winds, especially if the building is located in an area known for inclement weather.

The main wind force resisting system of a building is a vital component. While wind load calculations can be difficult to figure out because the wind is unpredictable, some standard calculations can give you a good idea of what a building can withstand. Wind loading analysis is an essential part of the building process.

If wind loading analysis is not done correctly the resulting effects could include collapsed windows and doors, ripped off roofing, and more. Contact Buildings Guide for quotes on safe and durable prefabricated steel buildings.

 

Download Link

Concrete Pier (Isolated Deep Foundation) Design Spreadsheet Based on ACI 318-14

Concrete Pier (Isolated Deep Foundation) Design Spreadsheet Based on ACI 318-14

 

Foundation elements are most commonly constructed of reinforced concrete. As compared to the design of concrete elements that form the superstructure of a building, additional consideration must be given to concrete foundation elements due to permanent exposure to potentially deleterious materials, less precise construction tolerances and even the possibility of unintentional mixing with soil.

 

Download Link

Reinforced Flat Slab Design Spreadsheet

Reinforced Flat Slab Design Spreadsheet

 

Flat slab system is an important division of concrete floor system. A civil engineer must know all the aspects regarding the flat floor system. Here, we have tried to gather various reading materials available in the web about flat slab floor system in one place. These materials are originally located at different websites. A civil engineer should study these lectures and materials for structural engineering acumen.

A flat slab is a reinforced concrete slab supported directly by concrete columns without the

use of beams. The benefits of using flat slab construction are becoming increasingly recognized. Flat slabs without drops (thickened areas of slab around the columns to resist punching shear) can be built faster because formwork is simplified and minimized, and rapid turn-around can be achieved using a combination of early striking2 and flying systems. The overall speed of construction will then be limited by the rate at which vertical elements can be cast. Flat slab construction places no restrictions on the positioning of horizontal services and partitions and can minimize floor-to-floor heights when there is no requirement for a deep false ceiling. This can have knock-on benefits in terms of lower building height, reduced cladding costs and prefabricated services.

 

Download link

error: Content is protected !!
Exit mobile version