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SAS SYSTEMS – REINFORCING COUPLING SYSTEMS

Pro­ject:
New World Tra­de Cen­ter
in Man­hat­tan - New York, USA

Cli­ent:
Sil­ver­stein Pro­per­ties
Con­struc­tion pe­ri­od:
2008 - 2015 (ex­pec­ted)
Main contrac­tor:
Hal­mar In­ter­na­tio­nal, Tur­ner Con­struc­tions, Tish­man Con­struc­tions
Scope of sup­p­ly:

 

6,200 tons SAS 670 high strength rein­force­ment bars, Ø 43 mm to 75 mm with pla­tes, lock nuts and cou­plers, 450 tons SAS 835/1035 post-ten­sio­ning bars, Ø 75 mm as DCP-rock an­chors with an­chor heads and cou­pling sys­tems.

Ap­p­li­ca­ti­on:

 

As part of the re­buil­ding ef­fort of the WTC on the sa­me site a me­mo­ri­al and four new towers (1 WTC to 4 WTC) we­re built. The mas­ter plan ar­chi­tect for the re­buil­ding was Da­ni­el Li­bes­kind. One world tra­de cen­ter (for­mer Free­dom Tower) will reach ap­prox.. 540m and will be the hig­hest buil­ding of New York when it’s fi­nis­hed. SAS steel was used for foun­da­ti­on work (DCP-an­chors and cais­son-pi­les) and for the su­per­struc­tu­re (co­lumns and she­ar walls) of the new towers. Com­mon rein­force­ment was re­pla­ced by SAS 670 for cost re­duc­tion re­a­sons. Rein­force­ment ca­ges we­re used to im­pro­ve the work­flow for rein­forced con­cre­te co­lumns. The rein­force­ment for the com­po­si­te co­lumns was as­sem­bled bar by bar. The ea­sy, fast and hence eco­no­mic as­sem­bling of high strength thre­ad bars sa­tis­fied the rein­force­ment and con­struc­tion com­pa­ny as well as the ow­ner of the buil­ding.

 

 

 

SAS SYSTEMS - POST-TENSIONING SYSTEMS

Pro­ject:

SPORT CI­TY TOWER, Do­ha, Qa­tar

Sport Ci­ty Tower in Do­ha, Qa­tar. The ex­ter­nal fa­ca­de of the 320 m high sky scra­per is a com­bi­na­ti­on of ar­chi­tec­tu­ral stain­less steel and gla­zing pa­nels. Its struc­tu­re com­bi­nes rein­forced con­cre­te and struc­tu­ral steel, with de­ep pi­les and a slip-for­med con­cre­te co­re.

Cli­ent:
The Sport Ci­ty Pro­ject Com­mit­tee
Con­struc­tion pe­ri­od:
April 2005 - No­vem­ber 2006
Main contrac­tor:
AR­GE MID­MAC - Six Con­struct
Sup­p­lier:
VSL Midd­le East LLC
Scope of sup­p­ly:

44 SAS 835/1035 thre­ad bars

 
Ø 75 mm, l 13,0 m with a post-ten­sio­ning force of 3,200 kN each in­clu­si­ve all re­qui­red ac­cess­ories 9 ring-shaped ar­ran­ged spe­cial sl­abs of mo­re than 2,5 tons each and 300 mm thick­ness
Ap­p­li­ca­ti­on:

At the ele­va­ti­on of 260 m above ground le­vel, this post-ten­sio­ning sys­tem is re­qui­red for the three-di­men­sio­nal ali­gn­ment of the 60 m high can­ti­le­ver steel con­struc­tion in form of a half-open tu­lip. In­si­de this con­struc­tion a 30 m high go­blet is pla­ced, in which the Olym­pic fla­me bur­ned du­ring the Asi­an Ga­mes 2006.

 



SAS SYSTEMS - POST-TENSIONING SYSTEMS

Pro­ject:
WEIR,
MONT SAINT MI­CHEL, Fran­ce

The old weir at the ri­ver Cou­es­non is re­pla­ced by a new spe­cial weir, in or­der to avo­id the sand sil­ting of the bay. The prin­ciple is sim­ple: at the ebb-ti­de the weir is opened, the dam­med up wa­ter shoots in­to the bay and flus­hes the al­lu­vi­al de­po­sits with it.

Cli­ent:
So­ci&ea­cu­te;t&ea­cu­te; mix­te Baie du Mont-Saint-Mi­chel
Con­struc­tion pe­ri­od:
2006 - 2012
Main contrac­tor:
QUIL­LE (Bouy­gues)
Sup­p­lier:
Dy­wi­d­ag Sys­tems In­ter­na­tio­nal

Scope of sup­p­ly:

5 4 pcs. SAS 835/1035 thre­ad bars Ø75 mm, l = 4,15 m and 54 pcs. SAS 835/1035 thre­ad bars Ø 75 mm, l = 4,48 m with ac­cess­ories. The ul­ti­ma­te load of each thre­ad bar is 4,572 kN.

Ap­p­li­ca­ti­on:

Du­ring flood-ti­de the weir is clo­sed and the ri­ver Cou­es­non is dam­med up. The pres­su­re force of the dam­med up wa­ter is held by the new spe­cial weir. The­re­fo­re the wa­ter­ga­tes of the weir are pre-stres­sed to the con­cre­te py­lons with two groups of ground an­chors of SAS 835/1035

Ø 75 mm ten­dons. The thre­ad bars are pre-stres­sed to a working load of 2,250 kN.

SAS SYSTEMS - GEOTECHNICAL SYSTEMS

Pro­ject:
GATE­WAY BRIDGE, BRIS­BANE,
Aus­tra­lia

Gate­way up­grade pro­ject in Bris­bane, Aus­tra­lia

Cli­ent:
QML - Queens­land Mo­tor­way Li­mi­ted
Con­struc­tion pe­ri­od:
Sep­tem­ber 2006 - May 2010
Main contrac­tor:

Leigh­ton Abigroup Joint Ven­ture
Sup­p­lier:
VSL Aus­tra­lia Pty. Ltd.

Scope of sup­p­ly:

150 tons SAS 835/1035 thre­ad bars of Ø 75 mm for the bridge pi­le foun­da­ti­on sys­tem. Me­cha­ni­cal spli­ces of the SAS thre­ad bars with SAS cou­plers al­low a full load trans­fer.

Ap­p­li­ca­ti­on:

The new Gate­way Bridge is sup­por­ted by rein­forced con­cre­te co­lumns with an ou­ter di­men­si­on of 15.0 m length and 2.5 m width. The loads of the rein­forced con­cre­te co­lumns are trans­fer­red to the rein­forced con­cre­te pi­le caps, which ha­ve an area of 19.5 m length, 17.6 m width and a thick­ness of 3.2 m and from the­re to the foun­da­ti­on pi­les with Øof 1.8 m. The pi­le heads are rein­forced with SAS 835/1035 thre­ad bars to pro­vi­de ver­ti­cal and ho­ri­zon­tal post ten­sio­ning in the main pier heads.

SAS SYSTEMS - TUNNELLING

Pro­ject:

DAF­THA SHIS ROAD & Tun­nel, Du­bai, UAE

Cli­ent:

Go­vern­ment of Shar­jah, Di­rec­to­ra­te of Pu­blic Works

Con­struc­tion pe­ri­od:

Ja­nu­a­ry 2006 - Au­gust 2010

Main contrac­tor:

Ge­ne­ral Me­cha­nic Com­pa­ny

Sup­p­lier:

VSL Midd­le East LLC

Scope of sup­p­ly:

Por­tal: 400 pcs. SAS 670 thre­ad bars

Ø 18 mm, L = 6.15 m, do­med wa­s­her 30°, bull no­se nut 30°, 1,200 pcs. lan­tern spa­cer. Tun­nel: 25,000 pcs. SAS 500 thre­ad bars Ø 25 mm, L = 4.15 m, do­med wa­s­her 30°, do­me nut 30°, re­sin cart­ridges.

Ap­p­li­ca­ti­on:

SAS thre­ad bars are used as rock do­wels for the por­tal face and as rock bolts for the in­ner tun­nel lay­er. The SAS thre­ad bars and ac­cess­ories for the por­tal are hot-dip gal­va­ni­zed. The tun­nel exists of two tun­nel sec­tions with a length of 1,250 km and 1,275 km. For pro­duc­tion the rock bolts are stres­sed to 50 kN and the bond length of the fast set re­sin cart­ridges is 1.00 m and of the slow set re­sin cart­ridges is 3.00 m.

SAS SYSTEMS – REINFORCING COUPLING SYSTEMS

Pro­ject:

OPE­RA TOWER, FRANK­FURT,
Ger­ma­ny

Cli­ent:

Opern­platz Pro­per­ty Hol­dings GmbH & Co. KG

Con­struc­tion pe­ri­od:

Ja­nu­a­ry 2007 - De­cem­ber 2009

Main contrac­tor:

Ed. Züb­lin AG

Ow­ner:

Tish­man Spey­er

Scope of sup­p­ly:

SAS thre­ad bars of steel gra­de 670/800 and con­tact cou­plers,

Ø 30 - 75 mm, with a to­tal amount of 320 to SAS thre­ad bars and 3,700 pcs. con­tact cou­plers.

Ap­p­li­ca­ti­on:

The high-strength SAS thre­ad bars 670/800 and con­tact cou­plers are used for rein­for­cing the co­lumns of a high-ri­se buil­ding (to­tal height of the buil­ding ~170 m) in Ger­ma­ny for the first ti­me. The to­tal lon­gi­tu­di­nal rein­force­ment of the high load ca­pa­ci­ty and edge co­lumns is de­si­gned with the high-strength SAS thre­ad bars 670/800. The ra­tio of rein­force­ment is up to 13 %. This high ra­tio of rein­force­ment at no con­ges­ti­on of steel in the co­lumns is pos­si­ble due to the rebar

Ø of up to 75 mm. Me­cha­ni­cal spli­ces of SAS thre­ad bars by con­tact cou­plers al­low the trans­fer­ring of high com­pres­si­ve forces.

SAS SYSTEMS - REINFORCING COUPLING SYSTEMS

Pro­ject:
SKY TOWER Wro­claw, Po­land.
Sky­scra­per Sky Tower in Wro­claw, Po­land. 46-sto­ry ho­tel-sky­scra­per with a to­tal height of 212 m, with shops, re­stau­rants and a me­di­cal cent­re.
Cli­ent:

LC CORP S.A., Po­len.

Con­struc­tion pe­ri­od:

De­cem­ber 2007 - No­vem­ber 2012

Scope of sup­p­ly:

500 tons SAS 500 thre­ad bars, Ø 16, 20 and 25 mm and 40 000 ac­cess­ories for cou­pler and end an­cho­r­a­ge.

Ap­p­li­ca­ti­on:

SAS 500 thre­ad bars we­re used in this buil­ding as rein­force­ment steel in she­ar walls and co­lumns as part of the she­ar co­re. Due to high wind loads on tall struc­tu­res she­ar walls con­tain con­cen­tra­ti­on of rein­for­cing steel ma­de pos­si­ble by using cou­plers spli­ces.

SAS SYSTEMS – POST-TENSIONING SYSTEMS

Pro­ject:
CA­PI­TAL GATE TOWER, Abu Dha­bi, UAE
Cli­ent:
AD­NEC, Abu Dha­bi Na­tio­nal Ex­hi­bi­ti­ons Com­pa­ny
Con­struc­tion pe­ri­od:
April - Sep­tem­ber 2008 (in­stal­la­ti­on & stres­sing of SAS bars)
Main contrac­tor:
Al Hab­toor En­gi­nee­ring
Sup­p­lier:
VSL Midd­le East LLC
Scope of sup­p­ly:

49 tons SAS 835/1035 pre-stres­sing bars Ø 65 mm, length 16 m, 160 pcs. an­chor pla­tes co­ne, 30°, 195 pcs. bull no­se nuts, 30°, 160 pcs. cou­plers, stan­dard stres­sing cou­plers and stres­sing an­cho­ra­ges

Ap­p­li­ca­ti­on:

Due to the high dy­na­mic loads of the Ca­pi­tal Gate Tower, the bas­e­ment le­vel co­re walls of the buil­ding are rein­forced and pre-stres­sed with SAS stress bars 835/1035. In or­der to re­du­ce the re­qui­red quan­ti­ty of bars, the con­ven­tio­nal reb­ars are suc­cess­ful­ly re­pla­ced by the high-strength SAS stress bars. With 35 floors and a to­tal area of 50,000 m², the Ca­pi­tal Gate Tower is used as of­fices and as ho­tel.

 

SAS SYSTEMS – POST-TENSIONING SYSTEMS

Pro­ject:
SOC­CER CI­TY STA­DI­UM,
JO­HAN­NES­BURG, South Af­ri­ca

Cli­ent:
Ci­ty of Jo­han­nes­burg
Con­struc­tion pe­ri­od:
Ja­nu­a­ry 2007 - Oc­to­ber 2009
Main con­struc­tor:
Gri­na­ker-LTA / In­ter­be­ton bv.
Sup­p­lier:
Du­ra­set
Scope of sup­p­ly:

850 pcs. SAS 950/1050 post-ten­sio­ning bars Ø 36 mm, length 3.00 m, un­bond­ed ten­don with an­chor pla­tes and do­me nuts at both ends of the bars

Ap­p­li­ca­ti­on:

The new Soc­cer Ci­ty Sta­di­um in Jo­han­nes­burg, for the foot­ball world cup in South Af­ri­ca, has a sea­ting ca­pa­ci­ty for 94,000 fans. The SAS post-ten­sio­ning bars 950/1050 are used for the ver­ti­cal an­cho­ring of the roof struc­tu­re to the con­cre­te co­lumns. The to­tal area of the roof struc­tu­re is 370,000 m². The an­cho­r­a­ge of the SAS 950/1050 bars is rea­li­zed with an­chor pla­tes and do­me nuts cast in­to the con­cre­te co­lumns. Due to the ea­sy, fast and safe hand­ling of the SAS thre­ad bar sys­tem an ef­fi­ci­ent con­struc­tion ti­me is gua­ran­te­ed.

SAS SYSTEMS – REINFORCING COUPLING SYSTEMS

Pro­ject:

Slab track sys­tem Bögl, ICE high speed rail­way li­ne Nürn­berg-In­gol­stadt & Er­furt-Ill­men­au

Cli­ent:
Deut­sche Bahn AG
Con­struc­tion pe­ri­od:
April 2003 – April 2004 (Nürn­berg - In­gol­stadt)
Ju­ly 2011 - Au­gust 2012 (Er­furt - Ill­men­au)
To­tal dis­tan­ce:
    
To­tal 128 km
Main contrac­tor:

Max Bögl
Scope of sup­p­ly:

1865 tons thre­ad bars SAS 500 Ø 20 mm with fix lenght of 6,44 m

Ap­p­li­ca­ti­on:

Thre­ad bars SAS 500 are used for cou­pling the pre­fa­bri­ca­ted com­po­n­ents of fi­xed track­way sys­tem, ma­nu­fac­tu­red on the pro­duc­tion sites of the pre­cas­ting plants of Max Bögl. Each pre cast sl­abs con­sist of six bars. The fi­xed track­way ele­ments with a no­mi­nal length of 6,50 m was con­nec­ted and stres­sed via ex­po­sed ends of thre­ad bars to­ge­ther with turn­buck­les and do­me nuts. In fact of force-lo­cked con­nec­tion bet­ween the pre cast sl­abs with thre­ad bars dy­na­mic loads cau­sed by high-speed trains can be ab­sor­bed safe­ly.