As a preliminary attempt, safety, possible instability and instability regions were established in a three-phase plot for the train running over the bridge for each of the earthquakes considered, from which the maximum allowable speed for the train to run safely under the specified ground acceleration can be obtained.
The ordinance provides that the Park District may deny a permit on any of 13 specified grounds, must process applications within 28 days, and must explain its reasons for a denial.
Applications can be denied on any of 13 specified grounds.
Ground motion descriptors such as peak ground acceleration (PGA) were calculated from ground motion prediction equations (or attenuation relationships), and the mean rate of exceedance of a specified ground motion amplitude, which is the hazard, was determined.
Earthquake record selection often is considered with the aim of accurately estimating the response of a structure at a specified ground motion intensity, as measured by spectral acceleration at Sa(T1).
It is now possible to calculate the response of a concrete dam to any specified ground motion; this has been done for the Tang-e Soleyman Dam in Iran and the Gariep Dam in South Africa.
When generating floor response spectra (FRS) using the direct spectra-to-spectra method developed in the companion paper, probability distribution of t-response spectrum (tRS), which deals with equipment-structure resonance or tuning, corresponding to a specified ground response spectrum (GRS) is required.
the maintenance of suitable order and decorum within the specified buildings and grounds, including the control of traffic and parking of vehicles in the National Zoological Park and all other areas in the District of Columbia under their control.
to step or climb on, remove, or in any way injure any object of art, exhibit (including an exhibit animal), equipment, seat, wall, fountain, or other erection or architectural feature, or any tree, shrub, plant, or turf, within the specified buildings or grounds.
(b) Prior to taking any of the enforcement actions in paragraph (a) of this section, the Commission will give notice of its intent to take the specified action and the grounds therefor, and afford a 30-day period for a response in writing; provided that, where the public interest so requires, the Commission may temporarily suspend a certification pending completion of these procedures.
Failure to fulfill the terms of the contract in the specified time frame may be grounds for dismissal from the program.
