Vanguard

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PRODUCT INFORMATION

PANDROL VANGUARD

7/16/2019 Vanguard


PRODUCT INFORMATION

PA N D RO L VA N G U A RD provides a rail fastening system

w ith very low vertical dynam ic stiffness that leads to

high levels of vibration isolation, w ithout significant

dynam ic gauge w idening under traffic. It delivers

exceptional vibration attenuation at a m uch low er

installed cost than floating slab.

The significant reduction of vibration and secondary

noise m akes it ideal for applications in the m ost

sensitive areas to these environm ental concerns.

PA N D RO L VA N G U A RD assem blies are suitable for

application on concrete sleepers, tim ber sleepers, slab

track, bridges, tunnels and viaducts.

COMPONENTS

There are tw o basic versions of the

PANDROL VANGUARD system :

(i) a cast-in or glued-in version, w hich can be

set into a concrete block or sleeper and

(ii) a baseplate version, w hich can be fixed

dow n w ith screw s/studs or bolts.

M ost of the key com ponents of the fastening

are the sam e in both system s. These are:

•rubb er w edges w hich sup po rt the rail at

the w eb

•side support brackets w hich hold these

in place and transfer load to the

support structure

•locking w edges, w hich fix the side brackets

•shoulders w hich provide location and the

reaction point against w hich the fastening

is braced

Tw o additional features ensure long-term

security and safe operation:

•locking clips

•bum p stop pads

CONSTRUCTION OF THE BASEPLATE VERSION

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FEATURES OF ASSEMBLYLow Profile

The very low profile ofPANDROL VANGUARD

m eans it can be installed w ithin existing

restricted rail heights. It can provide a retrofit

solution in areas w here space or cost prohibit

the use of floating slab track. It can reduce

tunnel diam eters, and therefore costs for new

track construction.

A dditionally, its low w eight can lead to

considerable savings in the cost of structures

such as viaducts, w hich w ou ld otherw ise have

to accom m odate the greater w eight of

floating slab track.

Adjustability

PANDROL VANGUARD baseplates provide an

exceptionally w ide range of adjustm ent — up

to 55m m of lateral adjustm ent and 36m m of

vertical adjustm ent w ith the standard system .

Vertical adjustm ent is achieved by either

shim m ing ben eath the side brackets or by

shim s placed beneath the baseplate. Lateral

adjustm ent is achieved either by allow ing the

locking w edg es on the field and gauge side of

the assem bly to take up different heights,

thereby locking the side b rackets into different

lateral positions across the w idth of the rail

seat, or by m eans of slots and serrated locking

w ashers on the baseplate fixing.

Maintenance

In contrast to floating slab track, w here elastic

elem en ts are inaccessible, allPANDROL

VANGUARD elastic com ponents are easily

accessible, and can be easily inspected and

m aintained using sim ple hand too ls.

Configuration

The vertical stiffness of PANDROL VANGUARD

can be adjusted in-situ by changing the

rubber w edges, by the addition or subtraction

of rail seat pads, to satisfy local requirem ents,

such as transitions. The longitudinal creep

resistance characteristics can easily be

m odified w ithout addition or subtraction of

com ponents by varying the clam ping load .

INSTALLATION ON SITETw o different m ethodologies exist for track

construction: ‘top dow n’and ‘bottom up’. Both

the cast-in or baseplate versions ofPANDROL

VANGUARD can be installed using either

m ethod. O nly the detail of how the fastener is

attached to the rail differs w ith PANDROL

VANGUARD as com pared to conventional

fastenings; all other aspects of track

construction are unaffected.

PANDROL VANGUARD

SAMPLE INSTALLATIONS

Cast-In PAND RO L VA NG U ARD assem bly installed on

concrete slab track

Baseplate VANG UARD assem bly installed on concrete slab

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Sui table fo r use o n: Light Rail, m etro and

general m ain line tracks.

N orm ally for use on concrete, non-ballastedtracks. M ay also be used on concrete or

w ooden sleepers or bearers.

Application data (standard products –special variants m ay be supplied for other applications)

Rail inclination Vertical / 1:40 / 1:20

Clip typ e Elastom er w edges

Typical a pplicatio ns N on-ballasted m etro tracks; M ain line bridges and tunnels.

M ax axle load: 26 tonnes; M in. curve radius: no lim it.

Typica l rail sectio ns 60E1 (U IC 60); 56E1 (BS.113A ); 54E1 (U IC 54); BS.80A ; A REM A 115RE.

Vertical a djustment Total range typically 36m m

Lat eral a djustment Typically ± 20m m

No. of anchors 2 or 4. If required, VA N G U A RD m ay be configured to m atch

anchor positions of standard U .S. D irect Fixation basep lates.

Type o f a nchors C ast-in inserts and bolts / A nchor bolts / Screw spikes & dow els / etc.

Compliance with standards:

PANDROL VANGUARD is com pliant w ith the requirem ents of the EC H igh Speed

Interoperability D irective (TSI), and a D eclaration of C onform ity has been issued for

use on “connecting lines”at speeds less than 100 km /hr.

Intended for applications w here exceptional

vibration attenuation is req uired .

Su itable for ‘top dow n’or ‘bottom up’concrete track construction, and as a ‘retro-fit’

to im prove the vibration attenuation in

existing tracks.

Typical performance data

Value Test method Remarks

Stat ic sti ffn ess 5M N /m A ssem bly secant stiffness betw een 5kN and 30kN

Dyna mic sti ffn ess 8M N/m EN13481-5: 2002 Assem bly secant stiffness betw een 5kN and 30kN at 4 Hz

Creep resistance > 15 kN EN 1 31 46 -1: 2 00 2Electrical insulation >50 kΩ EN 13146-7: 2002 Rail-to-rail, w et, on a concrete sleeper.

TECHNICAL SPECIFICATION

PANDROL VANGUARD

Pandrol Rail Fastenings Ltd. , 63 Sta t ion Road ,

Addleston e, Surrey KT15 2AR England .

Telephone: + 44 1932 834500

Telefax: + 44 1932 850858

E-mail: [email protected]

Website: htt p://w w w.pa ndro l.com

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Vanguard