Table of Contents
How do you calculate seismic load?
Starts here27:48Seismic Load Calc Example – YouTubeYouTubeStart of suggested clipEnd of suggested clip36 second suggested clipSo V is Z times I times C over R W times W so a certain percentage of our dead load is beingMoreSo V is Z times I times C over R W times W so a certain percentage of our dead load is being factored by this calculation.
How do you determine the seismic weight of a structure?
The seismic load is calculated by taking the Total Seismic Weight and converting it into a horizontal direction by multiplying by the seismic response coefficient Cs. The program will apply a Diaphragm Surface load which represents the seismic contribution of the Slab weight and any additional Dyn Load.
What is seismic calculation?
Seismic analysis is a subset of structural analysis and is the calculation of the response of a building (or nonbuilding) structure to earthquakes. It later became clear that the dynamic properties of the structure affected the loads generated during an earthquake.
What is a seismic load in construction?
Seismic loading is one of the basic concepts of earthquake engineering which means application of a seismic oscillation to a structure. It happens at contact surfaces of a structure either with the ground or with adjacent structures.
What is design horizontal seismic coefficient?
Design Horizontal Seismic Coefficient (αh)—The seismic coefficient taken for design. It is expressed as a function of the basic seismic coefficient (αo) or the seismic zone factor together with the average acceleration coefficient, the importance factor (I) and the soil-foundation system factor (β).
What are the two types of load on a structure?
The types of loads acting on structures for buildings and other structures can be broadly classified as vertical loads, horizontal loads and longitudinal loads. The vertical loads consist of dead load, live load and impact load. The horizontal loads comprises of wind load and earthquake load.
How do you calculate weight structure?
First off, you can calculate the specific weight of steel using the following formula: y=P/V, where P is the weight of a homogeneous body, V is the volume of the combination. The resulting parameter is constant and works only when the steel is of an absolutely dense state and non-porous structure.
How do you calculate total building weight?
How to Load Calculation Column Beam Wall Slab
- Volume of Concrete = 0.23 x 0.60 x 3 =0.414m³
- Weight of Concrete = 0.414 x 2400 = 993.6 kg.
- Weight of Steel (1\%) in Concrete = 0.414x 0.01 x 8000 = 33 kg.
- Total Weight of Column = 994 + 33 = 1026 kg = 10KN.
What are load combinations?
A load combination results when more than one load type acts on the structure. Building codes usually specify a variety of load combinations together with load factors (weightings) for each load type in order to ensure the safety of the structure under different maximum expected loading scenarios.
What is seismic coefficient?
The Seismic Coefficients are dimensionless coefficients which represent the (maximum) earthquake acceleration as a fraction of the acceleration due to gravity. Typical values are in the range of 0.1 to 0.3.
What are the parameters of seismic loads?
The following seismic parameters are considered: peak ground acceleration (PGA); peak ground velocity (PGV); the ratio PGA/PGV; Arias’ intensity ( ); root mean square acceleration (RMSa); the strong motion duration of Trifunac/Brady ( ); seismic power ( ); the spectral intensities of Housner (SIH), Kappos (SIK), and …
How do you calculate the static base shear force for any particular building under seismic loading?
The base shear formula is: V = 0.2 (W) V represents the shear force that will be generated at the base of a building. 0.2 represents earthquake force. W represents the weight of the building. Single story homes weigh approximately 50 pounds per square foot.
What are seismic calculations?
Seismic analysis is a subset of structural analysis and is the calculation of the response of a building (or nonbuilding) structure to earthquakes.
What does seismic load mean?
Seismic loading. Seismic loading is one of the basic concepts of earthquake engineering which means application of an earthquake-generated agitation to a structure. It happens at contact surfaces of a structure either with the ground, or with adjacent structures, or with gravity waves from tsunami.
How is the direction of the seismic load defined?
The seismic load acting on any direction is defined by creating load combinations each having the two main seismic load cases acting concomitant reduced with a calculated coefficient corresponding to the desired direction.