ASCE 7-10 Load Combinations Spreadsheet
The sheet is designed for calculating the Unity Ratio of a member subjecting to Moment and Axial load.
Design of columns are carried over a group of columns having a low variation of design values. In this group, design is carried for the highest values of axial force, moments about Y and Z directions, shear about Y and Z directions as well as torsion. However, it is a common practice among designers to ignore shear and torsion in columns. This practice will reduce safety factor in columns which are critical structural members responsible for the safety of the structure.
Construction budget template is very important for both construction and modeling projects. This template makes you to have a comprehensive construction project budget and guarantee that you account for all important items on the list. Additionally, while the construction project is underway, use this spreadsheet as a baseline to track whether you are over or under your budgeted amounts.
The template will be helpful to create an elaborate estimating and budgeting worksheet as it includes predefined sections for all the relevant parameters such as description, vendor, estimated cost, actual cost.This template also shows how a basic construction estimate should be. The template has taken a simplistic route, including the bare essentials like construction work description, estimated job cost & so on.
RC shear wall analysis and design excel sheet easy to use yet innovative construction spreadsheet is used to make the design of shear walls subject to wind and dead load combination. This shear wall design spreadsheet is very useful verifying constancy toward reinforced concrete structure.
It takes huge time while measuring & then remeasuring wall stiffnesses, direct and torsional rotation component of force to then estimate reinforcement and concrete stresses for a single wall successively. This shear wall design spreadsheet can significantly decrease your design time.
Presently, the sheet does not support the earlier version of excel like Excel 2003 and so on as these do not make out iferror function.
This estimating spreadsheet contains the following exclusive characteristics :
The sieve analysis, commonly known as the gradation test, is a basic essential test for all aggregate technicians. The sieve analysis determines the gradation (the distribution of aggregate particles, by size, within a given sample) in order to determine compliance with design, production control requirements, and verification specifications.
The gradation data may be used to calculate relationships between various aggregate or aggregate blends, to check compliance with such blends, and to predict trends during production by plotting gradation curves graphically, to name just a few uses. Used in conjunction with other tests, the sieve analysis is a very good quality control and quality acceptance tool.
Cantilever slabs are a typical one way slabs. They are projections from wall face of lintel beams or floor slabs. Even while designing they are considered as one-slabs with cantilever fixed or continuous at supports.
The trial depth is selected based on span/depth ratio of 7, as in IS:456. The reinforcement provided at the tension face should be checked for anchorage length near supports.
The thickness of such slabs is varied from max. at the fixed end to the min. of 100 to 150 mm at the free end. Distribution steel should be provided at the transverse direction.
Proper selection of depth and detailing of reinforcements will safeguard against excessive deflections and cracking of the cantilever slabs. Also, cantilever structural elements should be checked for safety against overturning.
The main objective of this sheet is to evaluate the effect of design tje RC slab for punching shear strength . The increasing of the punching shear strength and deformation capacity when subjected to patch load was studied here.
An experimental study was carried out on reinforced concrete slabs under a central patch load with circular, square and rectangular shapes of patch areas. A single concrete mix design was used throughout the test program. All of slab specimens were reinforced with distributed mesh reinforcement with equal steel ratios in both directions.
The validation of the experimental work was made by analyzing the tested slabs by finite element method under cracking load. The results obtained by the finite element method were found to compare well with those obtained
experimentally. In order to calculate the ductility for the tested slabs, the punching load has been determined by applying the published failure criterion and a load-rotation relationship obtained from semi-empirical relationship for the tested slabs.
Conclusions on the influence of patch area on the punching shear capacity of reinforced concrete slabs were drawn. The experimental results confirm that the strength and deformation capacity are slightly influenced by the shape of the patch area. Among all specimens, the slabs with circular shape of patch area exhibited the best
performance in terms of ductility and splitting failure.
In flat-plate floors, slab-column connections are subjected to high shear stresses produced by the transfer of the internal forces between the columns and the slabs (ACI-421.1R-08, 2008; ACI-421.1-99, 1999). Normally it is desired to increase the slab thickness or using drop panels or column capitals of exceptionally high strength for shear in reinforced concrete slab around the supporting column. Occasionally, methods to increase punching shear resistance without modifying the slab thickness are often preferred (Cheng and Montesinos, 2010).
The ways to transfer the force from column to the slab need to be studied to increase the shear resistance. Several reinforcement alternatives for increasing punching shear resistance of slab-column connections, including bent-up bars (Hawkins et al., 1974; Islam and Park, 1976), closed stirrups (Islam and Park, 1976), shearheads (Corley and Hawkins, 1968), and shear studs (Dilger and Ghali, 1981), have been evaluated in the past five decades. But there is a little experimental and theoretical information about the influence of patch area or cross section area shape for supporting column in the reinforced concrete shear resistance.