to trinh va ban ve dieu chinh khe co gian

- Ampllfied vertical axle load.. Loads of the strength linit state.. Verttcal load wheel lodd - Expansion joints shall be designed to resist the load combination for Strength I limlt sta

ToN(i cONG'rY xDCi'G'r 8 - crcP

BDr{ DA LA soN - rir r" LoAN

, 4i'

\i,: JJ iIDII: L\-TL

I t' Diitr ,lttnh htrtt t',; '/ti tirit klre trt git'iu r[rtty

lLro.'c liAtr kir hirn ,] thal'c'lto liitt ktit htr l6ng sr

,ltlrtg clto ctit' grii tltuu XL25, XL26, ,YL27 Dtr tin.

firdng I{6 Chi L[inh, cloun Lct Sott - Tin Loun.

DOc lip - Tu do - Hanh phf c

Dtr \-ing, nga!- ,/0 thang 05 num 20I6

dong xal'dUng so 571201S/HDTC goi thau XL25 ngil'25/0312015, Hgp d6ng xd,v dlrn-e so 7l?AlsiHDTC -soi thAu XL26 ngay 2 1 0112015 gilra c6ng ty TNHH dAu tu BT Carn Lo

Cdn cu tir;Ot fe ky thudt dd duo c phO c1u1,'6t.

Can cu'chi din k.-n thuat cua du 6n.

Theo tni5t fe k-V thuat va thi0t f6 Uan vc thi cong c6c cAu la khe co gidn rang luoc li6n

kOt bang bu l6ng HiQn nay mQt s6 du 6n dang chu-u-6n <iAn su dung khe co giin d4ng rdng

lugc li6n krlt hdn thay thii srlr dirng 1i0n ktit bu l6ng do c6c 11, do sau:

- Li6n k6t bu 16ng trong qua trinh su dung cac li6n k6t bu 16ng thuong ha)' bi long ra vi\ phdi du,v tu bio duOng su'a chira nhi6u rAt kho khan.

- Loai li6n k6t han d6ng nh6t va 6n dinh chic chan hon voi li0n ktit bu l6ng qua thuc tC c6 tu6i tho cao hon vir it phAi sua chlra trong qua trinh khai thac.

- Khe co gi5n li6n k6t bu l6ng co uu diern chi khi sua chira thay th6 ban tdn mdt khe co

gidn Nhung thuc t5 khe co gidn dang rdng luoc chir ,vtiu hong phAn 1i6n k6t dudi con

^l

thay t6t ca khe co gidn khi d6 hai 1i0n t6t han va bu 16ng ld nhu nhau.

Vq1'Nha thAu dC nghi diOu chinh khe co gi6n r[ng luryc li6n k6t hiin thay 1i0n krit bu l6ng

cho c6c goi th0u XL25.XL26 XLZ7 : Du 6n Xay dung cdn-e trinh duo'ng H6 Chi Minh doan

La Son -'fuy Loan

Qd hA so bin v€ chi ffit khe co gititt kim theo)

Bdng vdn ban nd;-' Nhd thdu thi cong kinh de nghi qr-r,v Ban C6ng t1,BT TVTK dr-r dn , ';

xetn xdt chap thuAn cli0u chinh de Nhd thir-r tri€n khai cac buoc tiOp theo nhf,rn dam bao ti6n clQ cfrng nhLr chat itrcrng Du 6n.

Xin trin trong c:im on !

- NhLr trOn:

- Luu VP.

/,t a

l='/

xl

=t

-.-<',.) *

C /z

g/,q;f/,il,; qr,f^

vTN I-,{ H uN Ei.

cONc rv c6 puAN rHItoNG MAI TTIvAN vA xAv DtNc viNn nuNc

VINH HUNG TCC.,JSC 'ru sO Cbns tv: L6 BT2, O SO +S, B6c Linh Ddm, Phudng Hodng LiQt, Qufln Hodng Mai, Hd NQi

; Phdng 304 tda nhi DC, sO t t tO I-y Chinh Thi\ne,P.7, Q.3,Tp H6 Chi Minh

: SO 07 Ly Nhan Tdng, Phuong Khu6 Trung, Qufln Cnm LQ, TP.Da Nang.

Website: www.vin hhungisc.com

*:t** ** *:t** *** * **rl * **:t:k** *'* *r.r.

NrI AX :

xAv DTNG COxC rniurr DUONG HO CHi MINII

DOAN LA SON _ TUY LOAhI

nn

rry

2-2

CO GIAI\

2-BANVE KHE CO GIAN

Bf,n v6, bf,ng tfnh khe co gifln d?ng rlng luqc liOn k6t hin VHF-C80

Bf,n vE khe co gifln d?ng ray th6p VHR.FSOS

o

,ffi

t-,

Al il

"=i t'

I

o

=

o o

3! 9 ;;

:9 E 9 B

Eo 6-!99

'2 Si n9:9

^r iobY:i.n

r ::33'

'rL)

,kt >; :

z

r

o

z?

F

5

o

d

F:

o

f

o

>6 F:

F

i

a.

o

o4 o:i u:s

'i! <

i

z

o

o

F

-o

=.

o

|-:

F

=

o

F

i

F

=

a.

o

>6 F:

F

o

F

tr

i

o o

-!l l I

'o o

z

,o I F

o

1T

=

,a

o

o

(,

o o

;=-g

ll

!

R

6

6

! g 6

B

a

a

EB

t

a

g q 2

d

E E

a

a

{6

4l<

6t^

i l-E

-t-^1.

EE t

:+

*l

+

:l

+

;<

<: oz

I

\

,/

I ,t

ie iT e

il*hJ

E*

.J

2.9

E

v

-' , ruvi!XUiTDu'rG/ ""i"tT($i.i-\:

vilt'trhtul€J.c

.\r^ o^ {r x94.

x LA SON - TUY LOAN

Item Ens Date Sign

Design 4l2tl2o16 T.D'T fircurenolr snsrr oF FTNGER ExpANsto\

/ lotNT vHF-c8o

Check Revised

1 Inrnrt parameter.

- Finger expansion joint capacity

- Lenqth of tooth ofthe expansionjoint

- Thickness of expansion joint

- Width of looth of the expansion joint

- Yield srength ofsteel

80 120 30 63

345 Mpa

- Dynamic coefficient.

- Ampllfied vertical axle load

- VerUal load for wheel

(LRFD, article 3.6.1.2.3) (LRFD, article 3.6.2-1)

Fv,Me=F,x(1+IM)

h

b

(LRFD, article 14.s.7.2.3)

2 Loads

2.1 Loads of the strength linit state

a Verttcal load (wheel lodd)

- Expansion joints shall be designed to resist the load combination for Strength I limlt state wich is specified in table 3.4.1-l for simultaneous

application ofverticaland horizontal axle loads specified inArticle 14.5.7_2, distributed as specified in Articte 14.5.7.3

- The vertical load for strength design shall be the desiqn tandem axles specified in Article 3.6.1.2.3

b Horizontal load (wheel loads)

- The horizontal load for strength limit state design shall be 20olo of amplified verticat axte load

- Horizontal load for axle

- Horizontal load for wheel

2.2 Loads for Fattgue linit state

a r'i trong th;ng dhq.

- As per Article 14.5.7 2, the system shall be designed lo resist the simultaneous application ofvedical and horizontal loads from a tandem axle

As specified in Article 14.5.7.2.1, the appropriate axle for fatigue design is the largest axle load from three-axle design truck specified

6t s /ca

j [,,

s

- This axle has a gross weiqht of 142 kN As per 14.5.7.2.1 this axle shall be considered as the total

design load consists of two 71 kN axles spa.ed at 1200mm

- Vertical axle load

Dynamic coefficient

- Amdified verticalaxle load

- Vertical load for wheel

- The horizontal load for strength limit state design shall be 20olo of amplified vertical axle load

- Horizontal load for axle

- Horlzontal load for wheel.

3 Calculation of th€finger expansionjoiht.

+ Load modifier fador:

load on a tandem axle Therefore the actual

M=

(LRFD, article 14.5.7.2.3)

a:

io2o5,

'7-,rPialG 'oYY(

PUON

iNri l

t':-(F r

,:i

3.7 Checkirrg streDgth limit sta@

- The total force effect shall be satisfied the formula as follows:

Shrx grx Q < FR" (LRFD 1.3.2.1-1)

- Calculated vertical load 60r wheel at the streng$ limit state

W6dhe = hxg x Wvs,Anp W,*,e.p

+ Load factor for strength limit state S

+ Load modifrer factor: h = hD x hR x h h

- The average stress from acting on the wheelsurface expansionjoinE:

+ Surface area subjected to wheel in the most unfavorable circumstances: S

( Be calculated in the worn case when na,yimum expansion )

- Calculated horizontal load for whe€l at strength limit state.

DH,.!.A.D = h x g x DH"s.bo

185.70

t.75

1.1

u737.7

2207.7

KN

+ Load factor for strength limit siaie ( LRFD table 3.4.1-1 )

'The average stress from acting on fle wheel surface expansion joints:

+ Suface area subjeded to wheel in the most unfavorable circumstances:

+ The average stress:

1.75 1.1

a4fit.7

441.4

mm2 kN/m2

mm2 kN/m2

in the worst case when maximum expansion )

- llaximum moment at point A

+ Tooth size under the effect of load

(Be cahulated in the wost case when iaximum expansion)

- Tooth width at the position of the largest lYoment:

- Tooth length at the position of the largest l4oment:

- Section mudulus of the toe of tooth

- Checkinq svess at the toe of tooth

sd=Ma/Ws s"=fxFY

sd = 43259.9s kN/m'] <= sn = 345000

Where: Resistance factor (LRFD 6.5.4.2)

3,2 Ch*kirrg fatigue limit state,

- Calculated vertical load for wheel at the fatigue limit staLe

W,F he=hxgxW"F,aD

+ Load fador for futigue limit state ( LRFD table 3.4.1-1 )

l4a kN.m

B=

q2=

Df=

0.0630

0.00000945 ml

43259.95 kN/m'z

OK

1

46.59

o.75 1.0

KN

+ Load modifier factor:

- The average stress from acting on the wheel surface expansion joints:

+ Surface area subjected to wheel in the most unfavorable circumstances:

+ The average stress:

( Be calculated in the worst case when maxinun exparEion )

- Calculated horizontal load for wheel at the fatigue limit state

DHr.r,he=hxgxDHr,hp

+ Lo6d fador for fatigue limit state ( LRFD table 3.4.1-1 )

+ Load modifier factor:

10854.16 kN/m': =< FrBl 2

KN

- The average stress from acting on the wheel surface expansion jointsr

+ Surface area subjected to wheel in the most unfavorable circumstances:

+ The average stress:

( 8e cahuhted in the wo6t case when haximum expansion )

- Ilraximlm moment at point A

+ Too$ size under the effect ofload

(Be calculated in the worn case when taximum expansion)

- Tooth width at the position of the largest lYoment:

- Tooth length at the posiiion ofthe larqest Moment:

- Section modulus of dle toe of tooth

- Checking stress at the toe of tooth

Df=rya/Ws

- Expansion will be designed with detail category B

9.32

0.75 1.0

84137.1 110.8

0.10

0.0630 0.0700

0.00000945

mm2 kN/m2

kN.m

I\4A

10854.16 kN/m'z

OK

0.41

A lZ62osas6)\ o.ft4

il

k

coxg

\) Ln sou - ruY LoAN Item Ens. Date Sign.

Design Huy Chung 4l2rl2ot6 Huy Chung

/ EXPANSIoN lotNT vHF-c8o

Check Revised

\ \3Eip9

r Th6ng sd irau Y;o

- Kha nSng chuydn vi cia khe

- ChiEu dii ch6n r;ns

- ChiEu day t5m khe co 9i5n

- BE rOng ch6n r6ng Oai vi tri l,loment udn ldn nhat)

- Gidi han chey cira th6p t5m khe co gi5n

2 Tiii trgng

2.1 lii trong d TTGH CD

a Tiii tu)ng th;ng dtihq (wheel load)

- Khe co giSn s6 aludc thidt k6 dd ch6ng lai t6 hdp tai trong d TTGH cD 1 dddc x5c dinh trong bang 3.4.1-1, kic dung d6ng thdi ciia Bi trong

d[hq v] nganq cia truc taitrong dudc x6c alinh kong muc 14.5.7.2, ph6n bdtiitrong irong mlrc 14.5.7.3

- Teitrong theng dunq tronq thi6t k6 TT GHCD s€ lA xe 2 truc thi6t kd dddc x6c dinh trong muc 3.6.1.2.3

=80mm

h=30mm b=63mm

- Tai trong truc th;nq dung

- He s6 xung kich

- Tii tronq kh6ch dai

- T;l trOng cho 1 biinh xe

b Tei bgng ngang

- T:itrong nqang dTTGH CD dddc l5y $ng 20olo taitrong thEng dfhq

- Tei trong ngang cho 1 truc bijnh xe

- Taitrong nganq cho 1 b;nh xe

2.2 Tii trpng d TTGH n dt

a Tiii trong ding dithg

(LRFD, article 3.6.1.2.3) (LRFD, ati€le 3.6.2-1)

F,,hp=F,x(1+IlY)

F"s

IM

F"s, mp W,s,a.p

(LRFO, article 14.5.7.2.3)

'NhUtrong muc 14.5.7.2, khe co gi6n sE dudc thiet k6 ird ch6ng laitiic dunq dtng thdi cia taitronq dtnq vi taitronq nqanq tit xe tAi2 truc

Muc 14.5.7.2.1, Lii trong truc phi hdp cho thiei kA d TTGH mdi l; truc ldn tir xe ba truc dudc x6c itinh trong muc 3.6.1.2.2

m, k$ SS

- Truc nay c6 tai tlong li 142 kN I,luc 14.5.7.2.1 truc nay s6 dridc xem nhd le t6ng tei $qng ciJa xe haitruc Do vey tai trong th(c tA cia truc

sE bao g6m 2 tryc 71 kN khoenq cach le 1200mm

- Tditrong truc theng duhg

- He s6 xlng kich

- T6i trong kh6ch dai

- Tei trong cho 1 b6nh xe

b Tii trong ngang

- Teitrong ngang dTTGH m6idudc l5y b;ng 20olo taitrong thing dung

- Tai trong ngang cho 1 truc biinh xe

- Taitronq ngang cho 1 biinh xe

3 Kiem toin khe co giSn ring luqc.

It4

r515

1'Y CO

:NG

,i xi

.i tru

IP

3.1 Kiein to,in d |TGH Co

- T6ng lLlc tinh todn phai thda m6n c6ng thdc sau

Shix gix q < F&

- T;itrong dung tinh to6n cho I biinh xe dTTGH CD

Wlsd,anp = hxgxWvs.rrp

(LRFD r.3.2.1'1)

185,70

t.75

1.1

ut37.t 2207.1

KN

Trong dd:

+ H6 s6 tai trong d TTGH Co

+ HE s6 diEu chirh iai irong

h=

q2=

q2=

- dng suit trung binh til binh xe tac dung l6n bE m;t khe co giSn:

+ Di6n tich bE m6t chiu t6r dung cta bSnh xe trong TH bet ldi nhat:

+ fng suet tung binh:

( Dndc dnh trong truihg hdp b;t tdi nh;t khi khe giAn tA da)

- Tei hTng ngang tinh toiin.ho 1 b6nh xe dTTGH CD

DH6!.Mp=hxgxDHvs,amo

Trong d6:

+ HE s5taitronq dTTGH CD ( LRFD table 3.4.1-1 )

+ H6 s6 dieu chinh tei trong h = hD x hR x hr

- Ung su6t trung binh tir b;nh xe t6c dung l6n b6 m5t khe co giSn:

+ Di6n iich bE m;t chiu tiic dung cira b6nh xe vong TH b6t ldi nharl

+ Uns su5t truns binh:

84137.08 447.428

mm2 kN/m2

mm2 kN/m2

1.75 1.1025

S.9r-l-oS

Dndc dnh trong tnldng hdp b;t ldi nh;t khi khe gien 6t da)

- 116 men ldn nhSttaididm A

+ Kich $Udc chen r;ng chiu tiic dqng cLla tai trong ph6n b6l

(linh cho -IH bet bi nh;t)

- ChiEu ronq ch6n r5n9 rai vi rri tyoment ldn nhet

- Chi6u dei chen r;ng tai vi ni l4oment ldn nhAt

- M6 men khiing u6n cia mAt dt chan r;ng

- Kidm toAn ing suet tai chan r5ng khe co girn

sa=lvlr/ws

s.=fxFv

C6 sa = 43259.95 kN/m'z <= \ =

Ironq d6: He sd sljc khiing

3,2, Kidm toiin d TTGH noi

- TAi trong dfrhg tinh toiin cho 1 biinh xe d TTGH m6i

W"ra,mp=hxqxW"./,",

345000 (LRFD 6.5.4.2)

0.0630

0.00000945

43259.95 kN/m,

345000.00 kN/m'z

OK

1 14a

q3=

8=

46.59

0.75

1

84137.1 553.8

9.32

0.75

1

84137.1 110.8

0.10

mm2 kN/m2

KN

mm2 kN/m2

kN.m

KN

- tJng su6t trung binh dJ bdnh xe tiic dung l6n bE m6t khe co giSn:

+ Di6n tidr bE m;t chiu tiic dung cua biinh xe trong TH b6t tdi nhAt:

+ tJnS sudt trung binh:

( OUtt t/nh trong tndng hdp bit ldi nhet khi khe gi4n iii da)

- Taitrong ngang tinh to;n cho 1 biinh xe d TTGH Moi

DHr,r,hp=hxgxDHr.Mp

Tronq d5:

+ H6 s6teitrong dTTGH lldi

+ HA sd dlEu chinh t;i trang

Trong d6:

+ He s6 tai trqng d TTGH Mdi

( LRFD table 3.4.1-1 )

( LRFD table 3.4.1-1 ) + HC s6 di€u chinh tai trong

- tJng su6t trung binh dl b5nh xe tiic dung len bE mEt khe co gi6n:

+ Di6n tich bE m;t chiu 6c dung coa biinh xe trong TH bir ldi nhet:

+ dnq su5t trunq binh:

( Dndc fl'nh trong tUdng hdp b;t /dt nhit khi khe gien tA da)

- 146 men l6n nhet tai di6m A

+ Kich thudc chan r;ng chiu tiic dung cia tai trong ph6n b6:

(Tinh cho TH bat td nh;t)

- ChiE! rong chan r;ng tai vi tri rltoment tdn nh5t

- ChiE! dai ch6n rtsng tai vi tri Lloment ldn nhat

- 146 men khing u6n cia mit cit chan r;ng

- rcdm td;n ing suet taj ch6n r5ng khe co gi6n

Df=ry^/Ws

- Khe co 9i6n dudc thi6t kdv6isr'c khang mdi lo?i B c6l

I14a

0.0630

0.00000945

c6 Ef = 10854.16 kN/m'z =< FBl 2 55000

10854.16 kN/m'z

OK

Ar lP

s /.:

,/;:l

3t

Q9

R;

<";

63zi

o

i

o

)

F

{4

z

'o o (, o

t

F

s o

o

rl

E]:

, t& {

P:

!

s3

Pi 5 a[q

z

o o

r

o

I

Z F

o

z

o.

=

1O

I

o

I

o

z

ro o

9

c

i

E

o

I:

od

,k

l

z

o

o

I: L

D

o

F

I

z

(9

o

2

A

E

2tG,

1!

i-!

: *'r {B-i1

3

f\e

(,

=6

?

\

q \

iA

I

v,

s

t: o

\,

;.1

I

.5.

za

ea

o?

-€9

>=

z*

E.€r

rt

'n

$

t l.

;-) l"\ ':Fi

!'lE

ql:

w-N,/ ,/