What are the properties of discrete-time signals?
For discrete-time signals, we obtain definitions for energy and power similar to those for continuous-time signals by replacing integrals by summations. x[n] is said to have finite energy or to be square summable if εx < ∞. x[n] is said to have finite power if Px < ∞. and zero otherwise.
What is a continuous and discrete-time signal?
A continuous signal or a continuous-time signal is a varying quantity (a signal) whose domain, which is often time, is a continuum (e.g., a connected interval of the reals). That is, the function’s domain is an uncountable set. To contrast, a discrete-time signal has a countable domain, like the natural numbers.
What is the condition of periodicity for a continuous time signal?
Condition of periodicity for a continuous time is x(t) = x(t +T0).
Which of the following is not a periodic signal?
∴ X [n] is a non-periodic signal.
What is fundamental period of signal?
The minimum value of T that satisfies x(t) = x(t + T) is called the fundamental period of the signal and we denote it as T0. Examples of periodic signals are infinite sine and cosine waves.
What is the period of a signal x t?
Informally, a periodic signal is one that repeats, over and over, forever. To be more precise: A signal x(t) is said to be periodic if there exists some number T such that, for all t, x(t) = x(t+T). The number T is known as the period of the signal.
What is fundamental time period of a structure?
The time taken (in seconds) for each complete cycle of oscillation (i.e., one complete back-and-forth motion) is the same and is called Fundamental Natural Period T of the building. Fundamental natural periods T of normal single storey to 20 storey buildings are usually in the range 0.05-2.00 sec.
How do you find the time period of a structure?
As per the formula provided in IS code (IS 1893(part1):2002), the time period value obtained, . = 0.7475 sec Where h=height of the building in the model provided h=21.45m The above calculation is done manually just considering the overall height of the building.
What is the natural frequency of a structure?
The natural frequency of a system is the frequency at which a system naturally vibrates once it has been set into motion. The natural frequency depends on two things: the stiffness and mass of the system.
What is importance factor?
Importance Factor. Importance Factor is determined from Design Loads for Buildings and Other Structures (ASCE 7) based on the Occupancy Category. It is utilized in calculating flood, wind, snow, seismic and ice design loads. The Importance Factor is a multiplier that increases or decreases the base design loads.
What is Zone Factor?
Zone factors are given on the basis of expected intensity of the earthquake in different zones. In IS Code, it is given based on the Maximum Considered Earthquake (MCE) and service life of the structure in a zone.
What is Overstrength factor?
The overstrength, which is specified as member or structural capacity, is usually defined using overstrength factor, which may be defined as the ratio of maximum base shear in actuel behavior to first significant yield strength in structure.
What is special moment resisting frame?
SPECIAL MOMENT RESISTING FRAME (SMRF) : A moment resisting frame specially detailed to provide ductile behaviour complying with the requirements of Chapter 8 or 10 for concrete or steel frames respectively.
What is the use of moment resisting frame?
A moment frame is a special type of frame that uses rigid connections between each of its constituent members. This configuration is able to resist lateral and overturning forces because of the bending moment and shear strength that is inherent in its members and the connecting joints.
What is the difference between a moment frame and a braced frame?
In moment resisting frames, the structural members are joined together using rigid joints which transfer moment. So, the moment resisting frame depends on the joints to transfer lateral loads to the foundation….Difference Between Braced Frame and Moment Resisting frame.
| Brace Frame | Moment Resisting Frame |
|---|---|
| It is not labor intensive. | It is substantially labor intensive. |
What is a moment resisting connection?
Moment-resisting frame is a rectilinear assemblage of beams and columns, with the beams rigidly connected to the columns. By virtue of the rigid beam–column connections, a moment frame cannot displace laterally without bending the beams or columns depending on the geometry of the connection.
What is a full moment connection?
A moment connection transfers bending moments from a beam to a column. It is a stiff connection. A shear connection (also called a simple connection) transfers little or no moment. An example of a moment connection is a fully welded endplate to a beam, connected to a column flange.
What is a haunch connection?
The apex haunch joint is commonly used for roof beams. It consists of two beams spliced with bolted end plates, and optional haunches attached at the top and/or bottom. The haunches are created from beams or plates.
What is a haunch?
English Language Learners Definition of haunch : the upper part of a person’s or animal’s leg especially : the upper part of an animal’s rear leg used as meat.
What is haunch height?
[top]Main frame An clear height (from the top of the floor to the underside of the haunch) between 5 and 12 m. A roof pitch between 5° and 10° (6° is commonly adopted) A frame spacing between 6 and 8 m. Haunches in the rafters at the eaves and apex.
What is a splice connection?
Splice connections allow connecting two collinear elements using additional plates on webs and/or flanges. They can be standalone elements or elements of a structure.