Seismic loads for structure-mounted equipment, Mechanical Engineering

Assignment Help:

Q. Seismic Loads For Structure-Mounted Equipment?

For equipment mounted in a structure above grade, the governing equation for seismic force is:

Fp = AvCcPacWc, where Av = (a site-specific value, equipment seismic coefficient Cc=5), and performance criteria factor P=1.0.ac=1.0, except for flexible equipment such as tall slender vessels, vessels on tall legs springs, or other resilient supports.  This factor is then given as follows: for Tc/T<0.6 or Tc/T>1.4, ac=1.0; for Tc/T³0.6 or Tc/T£1.4, ac=5.0. 

Tc is the first natural period of the equipment, and T is the first natural period of the structure.  Wc is the operating weight of the equipment.  Fp is the horizontal seismic force, applied at the center of gravity of the equipment and in the direction causing the highest stresses. The design of pressure retaining elements (both internal and external) shall permit allowable stress multiplying factors.


Related Discussions:- Seismic loads for structure-mounted equipment

Fermenter, The features of a typical fermenter (as shown below) are enginee...

The features of a typical fermenter (as shown below) are engineered to enable efficient culture of microbial, mammalian or insect cells and  facilitate  ease  of operation for the

Find out the axial moment of inertia, Find out the axial moment of inertia:...

Find out the axial moment of inertia: Find out the axial moment of inertia of a rectangular area of base b and height d around centroidal axis GX and the base B 1 B 2 . So

Thermal stress, Derivation of formula of thermal stress

Derivation of formula of thermal stress

Moment of Force, How do I solve this question? http://i195.photobucket.com...

How do I solve this question? http://i195.photobucket.com/albums/z154/NanazRulez/20120802_155751.jpg

Radius of gyration, Radiu s of Gyration (K) The radius of gyration of ...

Radiu s of Gyration (K) The radius of gyration of given lamina about given axis is that distance from te given axis at which all the elemental parts of lamina would have to be

Type of strain, Type of strain: There are basically four type of strai...

Type of strain: There are basically four type of strain 1. Tensile strain 2. Compressive strain 3. Volumetric strain 4. Shear strain

Workplace operations requiring safety, Workplace Operations Requiring Safet...

Workplace Operations Requiring Safety The operations performed through workers in their workplace are of dissimilar nature but they involve a number of machine, equipment and

#thermodynamic, heat pump to estimate the COP acts as refrigerator experime...

heat pump to estimate the COP acts as refrigerator experiment abstract

Determine in flow stream, Derive and solve a model of an insulated water ta...

Derive and solve a model of an insulated water tank with a changing level (i.e., changing tank volume). There is only one in ow stream with a flow rate of 1 kg/sec for t The

Objectives-plastics-reinforced plastics and adhesives, Objectives Afte...

Objectives After studying this section, you should be capable to: define basic nature of plastics, differentiate between various types of plastics, define polym

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd