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Nhim V ca n

GVHD: ThS. Nguyn Vn SnB Mn: K Thut Xy Dng .

http://my.opera.com/son12a2/blog/

nCu B Tng Ct Thp

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n Thit K Cu BTCT2

Nhim V n

I. Mc c bn:

1. u, nhc im:

a. u im:

- Khi lng n t hn, tit kim thi gian v cng sc hcnhng hc phn khc.

- Yu cu ca Cn b hng dn v phn bin cao hn

b. Nhc im:

- Khng c lm LVTN chuyn ngnh Cu. Tuy nhin, chophp 10% sinh vin ng u v phi t im B c lmLVTN chuyn ngnh Cu.

- im ti a l B.

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n Thit K Cu BTCT3

Nhim V n

I. Mc c bn:

2. Gii hn n:Ch yu cu sinh vin lm n cc phn sau:

- B tr chung: th hin tng i y v chi tit.- Lan can, di phn cch: ch cn chn tit din, khng cn tnh ton.

- Bn mt cu:

+ Tnh ton thit k phn BMC pha trong theo phng phpgn ng.

+ Tnh ton, thit k phn bn hng (khng cn xt trng hp xeva vo lan can)

- Dm ngang: ch cn tnh ton, thit k dm ngang gia nhp.

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n Thit K Cu BTCT 4

Nhim V n

I. Mc c bn:

2. Gii hn n:- Dm chnh:

+ La chn tit din.+ Tnh ton ni lc v t hp ni lc tc dng ln dm.

+ B tr cp d ng lc v ct thp thng.

+ Kim ton tit din dm TTGH S dng.

+ Kim ton tit din dm TTGH Cng I.

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n Thit K Cu BTCT 5

Nhim V n

II. Mc nng cao:

1. u, nhc im:a. u im:

- c lm LVTN chuyn ngnh Cu- im ti a l A.

- Thi gian duyt bi c nhiu hn.

b. Nhc im:

- Khi lng n nhiu hn, tn nhiu thi gian v cng sc lm n.

- Yu cu ca Cn b hng dn v phn bin cao hn

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n Thit K Cu BTCT 6

Nhim V n

II. Mc nng cao:

2. Gii hn n:

Yu cu sinh vin lm n cc phn sau:

- B tr chung: th hin y v chi tit.- Lan can, di phn cch: ch cn chn tit din, tnh ton, thit k.

- Bn mt cu:

+ Tnh ton thit k phn BMC pha trong

+ Tnh ton, thit k phn bn hng (xt tt c cc trng hp)

- Dm ngang: tnh ton, thit k dm ngang u dm v gia nhp.

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7

Nhim V n

II. Mc nng cao:

2. Gii hn n:+ La chn tit din.

+ Tnh ton ni lc v t hp ni lc tc dng ln dm.+ B tr cp d ng lc v ct thp thng.

+ Kim ton tit din dm TTGH S dng.

+ Kim ton tit din dm TTGH Cng I.

+ Tnh ton vng ngc.

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8

Hnh Thc Thc Hin

Mi sinh vin lm mt n ring bit.

Duyt n hng tun, thi gian do CBHD quy nh.

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9

Hnh Thc nh Gi

- im n l im trung bnh ca CBHD v CBPB.- im ca CBHD da trn cc tiu ch:

+ Chuyn cn, ham hc hi.

+ Trnh by thuyt minh, bn v.+ Kh nng hiu bit, tng mi, sng to- im ca CBPB da trn cc tiu ch:

+ Kh nng tr li cc cu hi.+ Trnh by thuyt minh, bn v.+ Kh nng hiu bit, tng mi, sng to

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n Thit K Cu BTCT 10

Cc Trng Hp Khng c Bo V

1. Khng np n ng thi gian quy nh

2. Khng hon thnh khi lng cng vic c giao.

3. Khng trnh duyt phn b tr chung v dm chnh.

4. S liu thit k khng ng vi s liu c giao.

5. Chp file ca ngi khc hoc cho ngi khc chp file v kt

qu tnh ton sai ging nhau.

6. Khi cht lng n ca sinh vin qu km, GVHD c quynkhng cho bo v n.

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n Thit K Cu BTCT 11

La Chn S Liu Thit K

- Da vo 2s cui ca M S Sinh Vin chn s liu thit k .

+ Scuicng chnchiudi nhp.

+ Sth2 chnkhcu.

+ Scuicng chndngmtctngang

+ Sth2 chnhnh thcDLcadmchnh

- V d: 1 Sinh Vin c MSSV: 1065825

+ 5 Chiudi nhp: 29 m

+ 2 Khcu: 7.5 m

+ 5 Mtctngang: ChI

+ 2 DngDLdmchnh: Cngsau

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n Thit K Cu BTCT 12

Chiu Di Nhp

STT Chiu di nhp Ghi Ch

1 18.6 m

2 22.0 m

3 24.5 m4 27.0 m

5 29.0 m

6 30.0 m

7 31.0 m8 32.0 m

9 33.0 m

0 35.0 m

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n Thit K Cu BTCT 13

Kh Cu

STT Chiu RngPhn Xe Chy

Kh Cu Vn TcThit K

1 7.0 m 7.0 m 40 Km/h

2 7.5 m 7.5 m 40 Km/h

3 8.0 m 8.0 m 40 Km/h

4 8.5 m 8.5 m 60 Km/h

5 9.5 m 9.5 m 60 Km/h

6 10.5 m 10.5 m 60 Km/h

7 11.0 m 11.0 m 80 Km/h

8 12.0 m 12.0 m 80 Km/h

9 13.0 m 13.0 m 80 Km/h

0 14.0 m 14.0 m 80 Km/h

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n Thit K Cu BTCT 14

Mt Ct Ngang

Loi Mt ct ngang Ghi Ch

A Ch I

B Ch T

STT 1, 2, 3, 4, 5: chn loi A

STT 6, 7, 8, 9,0: chn loi B

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n Thit K Cu BTCT 15

Hnh Thc DL

Loi Dng DL Ghi Ch

A Cng trc

B Cng sau

STT 1, 3, 5, 7, 9: chn loi A

STT 0, 2, 4, 6, 8: chn loi B

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n Thit K Cu BTCT 16

Yu Cu v Bn V

1. Th hin b tr chung ca cu

2. Hnh dng, kch thc v b tr thp trong lan can.

3. B tr thp trong BMC.

4. Hnh dng, kch thc, b tr ct thp trong dm ngang

5. Hnh dng, cu to, kch thc, b tr ct thp thng v ct thp d

ng lc trong dm chnh.

Ghi ch: Bn v 2, 3 v 4 c th v chung vo cng mt bn v

Cc bn v phi th hin trn giy A1

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n Thit K Cu BTCT 17

B Tr Chung

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n Thit K Cu BTCT 18

B Tr Chung

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n Thit K Cu BTCT 19

B Tr Chung

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n Thit K Cu BTCT 20

B Tr Chung

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n Thit K Cu BTCT 21

B Tr Chung

1. Khong cch v s lng dm Chnh

- Chn khong cch gia 2 dm chnh, S: 1100mm S 4900 mm

- Chiu di phn hng nn ly: (0.35 0.5)S.

- S lng dm chnh, Nb: N

b4

- Chiu cao dm chnh: (xem thm Bng 2.5.2.6.3-1).

- Chn tit din dm l ch I hoc ch T.

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n Thit K Cu BTCT 22

B Tr Chung

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n Thit K Cu BTCT 23

B Tr Chung

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n Thit K Cu BTCT 24

B Tr Chung

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n Thit K Cu BTCT 25

B Tr Chung

2. Lan CanDi Phn Cch

- C th s dng lan can dng tng, dng ct v dm hay lan can t hp.

- La chn tit din s b, chiu cao ti thiu ca lan can l 810mm tnh tb mt phn xe chy

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n Thit K Cu BTCT 26

B Tr Chung

2. Lan CanDi Phn Cch

- Khi BMC c 4 ln xe tr ln th cn phi b tr thm di phn cch gianhp:

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n Thit K Cu BTCT 27

B Tr Chung

3. Chi Tit Thot Nc BMC

- Bao gm li chn rc, phiu thu nc, ng thu nc,

- Cn th hin khong cch gia cc ng thot nc (5-15m).

- Din tch ng thot nc c xc nh theo din tch b mt BMC,1cm2ngthot nctngngvi1m2BMC. ngknh tithiucangthot nckhng nhhn100mm

- Mingngphithphnydm100mm vphivt 450trnh ncbnvo ktcu.

- C thsdngngthot ncdc thu gom nc t cc ng thotnc ng trn BMC truyn xung, sau dn xung ng thot ncngttivtr cc trhocmcu.

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n Thit K Cu BTCT 28

B Tr Chung

4. Bn Mt Cu:

- Chiu dy BMC c la chn tng i theo khong cch gia 2 dmchnh

- Chiu dy ti thiu ca BMC gia 2 dm chnh l 175mm.

- Chiu dy ti thiu ca BMC phn hng l 200 mm. Chiu dy bn hngc th thay i t mp bn hng n tim dm bin.

- Chiu di phn hng nn ly: (0.35 0.5)S.

- i vi dm T:

+ Phn cnh T ca dm T c xem nh phn BMC

+ Cng b tng phn BMC bng vi cng b tng ca dm T

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n Thit K Cu BTCT 29

B Tr Chung

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n Thit K Cu BTCT 30

B Tr Chung

5. Dm Ngang:

- Theo bin php thi cng c 2 loi:

+ Dm chnh cha l 30 - 36 lun ct thp dm ngang

+ Dm chnh cha snct thp dm ngang

- B tr ct thp theo 2 trng hp ny l khc nhau Kim ton kh nngchu lc cng khc nhau.

- Chiu cao dm ngang khng nht thit phi b tr ht chiu cao dm chnh.

- B rng ca dm ngang u dm ln hn dm ngang gia nhp.

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n Thit K Cu BTCT 31

B Tr Chung

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n Thit K Cu BTCT 32

B Tr Chung

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n Thit K Cu BTCT 33

B Tr Chung

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HAVE A NICE WEEKEND!

THE END