ASME RT-2 pdf free download
ASME RT-2-2014 pdf free download.Safety Standard for Structural Requirements for Heavy Rail Transit Vehicles.
1.1 Subjects Covered by This Standard
This Standard applies to carbodies of newly constructed heavy rail transit vehicles for transit passenger service. It defines requirements for the incorporation of passive safety design concepLs related to the performance ol the carbody of heavy rail transit vehicles in conditions such as collisions, so as to enhance passenger safety, and limit and control damage.
1.2 Subjects Not Addressed by This Standard
There are several issues related to safety not addressed, such as, but not limited to
(a) structural repairs
(b) fatigue
(c) corrosion
(d) fire protection
(e) interior vehicle design
(f) emergency egress from vehicle
(g) inspection and maintenance
1.3 Effective Date
This Standard applies to carhodies of newly constructed heavy rail transit vehicles for transit passenger service ordered IHO days following the date of issuance of this Standard by the Standards Committee and ASME.
2 DEFINITIONS
This Standard relies, where practical, on terms already
in use by ASME, the American Public Transportation
Association (AI’TA), and the Institute of Electrical and
Electronics Engineers (IEEE). For the purposes of this
Standard, the following definitions apply:
anticlimber: a structural member located at each end of the vehicle, used to engage the anticlimber of an Opposing or otherwise coupled vehicle to resist relative vertical travel between the two carbodies during a collision.
ant itelescoping plate: a single structural member that spans the full width of the carbody at the top of the end frame, that is attached to the tops of the collision and corner posts, and is designed to transmit the collision and corner post top reaction loads to the carbody sides. belt rail: a longitudinal structural member in the side frame arranged below the passenger side windows.
carbody (heavy rail): the heavy rail vehicle body consists of the main load-carrying structure above all truck suspension units. It includes all components that arc connected to this structure and contribute directly to its strength, stiffness, and stability Mechanical or electrical equipment and other mounted parts are not considered part of the carbod though their attachment brackets
closing speed: the relative speed of a vehicle to another object or vehicle at the time of initial impact.
collision posts (heavy rail transit): a set of two structural posts located at each end of the carbody, extending from the bottom of the underframe structure up to an antitelescoping plate. They are located at the approximate one- third points across the width of the vehicle, and are forward of the seating position of any passenger or crew person.
consist: the makeup or composition of the individual units of a train, generally by number and type of vehicle.
corner posts (RT-2): a set of two structural posts located at the outside corners of the passenger compartment or at the extreme corners of the carbody, extending from the bottom of the underframe structure up to an antitelescoping plate and to the roof at the top of the side frame at its intersection with the roof.
crash energy nw?zagenwnt (CEM): a method of design and manufacture of vehicle structures that assigns certain sections of the carbody the task of absorbing a portion of the energy of collision by crushing in a controlled manner (see structural energy absorption zone). The controlled crushing and energy absorption functions are typically assigned to special carbody structural members in the structural energy absorption zone that are designed to crush in a predictable and stable manner over a distance that depends on the design of the member and the desired amount of energy absorption. The use of supplementary energy-absorbing element(s) may be specified.ASME RT-2 pdf download.
