An isolated footing is one of the most used types of foundation to support single-columns when they are arranged at a long distance. An isolated footing must be designed to avoid exceeding its bearing capacity and provide safety against overturning or sliding while preventing the ground from settling.
Isolated Foundation Calculation (ACI 318M-95) Read More »
Footings are an important part of foundation construction. They are typically made of concrete with rebar reinforcement that has been poured into an excavated trench. The purpose of footings is to support the foundation and prevent settling. Footings are especially important in areas with troublesome soils.
FOOTING DESIGN PROGRAMME USING LIMIT STATE METHOD Read More »
“FOOTINGS” is a spreadsheet program written in MS-Excel for the purpose of analysis of rigid rectangularspread footings with up to 8 total piers, and for either uniaxial or biaxial resultant eccentricities. Overturningsliding, and uplift stability checks are made when applicable, and resulting gross soil bearing pressures atthe four (4) corners of the footing are calculated.
DESIGN OF RECTANGULAR SPREAD FOOTING Read More »
An isolated footing is one of the most used types of foundation to support single-columns when they are arranged at a long distance. An isolated footing must be designed to avoid exceeding its bearing capacity and provide safety against overturning or sliding while preventing the ground from settling.
ISOLATED FOOTING DESIGN-F3 Read More »
A rectangular tank, reaching from floor to ceiling, is relatively expensive to construct as it has to be designed to cope with quite large hydraulic pressures, so there is an advantage in using vertical cylindrical stores, which are placed behind the double glazing as in the Trombe wall system.
Rectangular Steel Tank Read More »
An isolated footing is one of the most used types of foundation to support single-columns when they are arranged at a long distance. An isolated footing must be designed to avoid exceeding its bearing capacity and provide safety against overturning or sliding while preventing the ground from settling.
Design of Square/Rectangular Isolated Footing Read More »
The design of isolated footing is the most economical types. … It is constructed as close to the ground surface as possible consistent with the design requirements. Isolated footing are used to support an individual point load such as that due to structural column.
Design of Isolated footings under moment Read More »
A raft foundation, also called a mat foundation, is essentially a continuous slab resting on the soil that extends over the entire footprint of the building, thereby supporting the building and transferring its weight to the ground. … This reduces the stress on the soil.
DESIGN OF SLAB MAT FOUNDATION WITH FOUR COLUMNS Read More »
Mat foundations also are known as raft foundations, is a thick concrete slab placed on the ground as the foundation of the structure. … With the increase of the axial loads on the structure or due to the poor ground conditions, the area of the footings (isolated, combined, strip footing, etc) need to be increased.
Mat Foundation Design Read More »
An isolated footing is one of the most used types of foundation to support single-columns when they are arranged at a long distance. An isolated footing must be designed to avoid exceeding its bearing capacity and provide safety against overturning or sliding while preventing the ground from settling.
Design of Isolated Foundation subjected to Concentrated Load Read More »
DDM is very simplest and approximate method for analysis of flat slab. In this method total moment (M0) is calculated and then it distributed to total Negative Moment and total Positive moment All the Negative & Positive moments are distributed in the column strips & Middle strips respectively.
FLAT SLAB DESIGN BY DIRECT DESIGN METHOD Read More »
Three basic methods are available for analyzing the responses of a structure subjected to seismic ground wave: Static analysis. Response spectra analysis. Time history analysis.
EARTHQUAKE LOAD ANALYSIS Read More »
A corbel is a very short structural cantilever member projecting from a wall or a column for the purpose of carrying loads. In reinforced concrete structures, corbels are cast monolithically with the walls or columns supporting them.
Design of Concrete Corbel Read More »
Strap footings or cantilever footings are a special form of combined footings. They consist of two separate bases that are connected (balanced) by a strap beam. In the design of strap footing, it is assumed that the strap beam is rigid and does not transfer any load by bearing on the soil at its bottom contact
Design of Combined Strap Footing Read More »
Longitudinally, the footing acts as an upward loaded beam spanning between columns and cantilevering beyond. … Two-way shear is checked under the heavier column. The footing is also subjected to transverse bending and this bending is spread over a transverse strip near the column.
Design of Rectangular Combined Footing Read More »
The combined footing may be rectangular, trapezoidal or Tee-shaped in plan. The geometric proportions and shape are so fixed that the centeroid of the footing area coincides with the resultant of the column loads. This results in uniform pressure below the entire area of footing.
COMBINED FOOTING DESIGN PROGRAMME USING LIMIT STATE METHOD Read More »
They are generally used in the construction of buildings., which are common in practice; these types of column are provided only if the shape of the room is a square or rectangular shape. It is way much easier to construct and cast rectangular or square columns than circular ones In this article we are giving some
Rectangular Column Calculations Equally Spaced Reinf. on Perimeter Read More »
The design shear capacity VRd of a rectangular cross-section with a concrete compressive strength of fc’ fck = 25 MPa and 50 MPa resp. without web reinforcement is listed in Table 1 according to ACI, BS 8110-1 and EC2. The shear capacity according to BS 8110-1 is 24 % and 11 % respectively higher than ACI 318.
SUBFRAME ANALYSIS The general steps for analysing a determinate frame are: Use equilibrium to find all reaction forces. Split the frame into separate members. Any point load or moment which acts directly on a joint between two or more members must be placed on only ONE of the members when they are split up.
The moment can be uniaxial, as in the case when two adjacent panels are not similarly loaded, such as columns A and B in Fig. … A column is considered biaxially loaded when the bending occurs about the X and Y axes, such as in the case of the corner column C in Fig.
Design of Uniaxially Loaded Rectangular Columns Read More »
