Bai Thuc Hanh Ban Ve San-dam

Hng dn bi thc hnh 6: BN V SN DM

B mn: Hnh Ha V K Thut Trang 1

BI TP 6- BN V SN DM

Yu cu:

1. V mt bng sn, 2. V mt ct A-A ca sn, 3. V dm DS1, 4. V mt ct 1-1, 2-2 ca dm DS1, 5. Lp bng thng k cho cc thanh thp 1, 2, 3 ca sn, bng phn loi thp, 6. V khung bn v, khung tn.

1 NH DNG 1.1 To lp Name (tn lp) Color (mu) Linetype (kiu ng) Lineweight (b rng ng)

0 White Continuous 0.5

Truc Green ACAD-ISO04W100 0.18

Cot-thep Yellow Continuous 1

Cot-thep-san White Continuous 0.5

Cot-dai White Continuous 0. 5

Text Blue Continuous 0.25

Kich-thuoc Red Continuous 0.25

Ky-hieu Cyan Continuous 0.25

Duong-bao-san Green Continuous 0.18

Duong-bao Magenta Continuous 0.25

Net-khuat Blue ACAD-ISO02W100 0.25

1.2 nh t l dng ng Format Linetype t gi tr ca Global scale factor (t l ton cc) l 0.35.

1.3 nh dng kiu kch thc (dimstyle): Bn v ny c mt bng sn c v vi t l 1:100, cc hnh biu din cn li th c v vi t l 1:20 nn ta s nh dng 2 kiu kch thc: Dim100 ( ghi kch thc cho mt bng sn), v Dim20 ( ghi kch thc cho cc hnh biu din khc)

1.3.1 nh dng kiu kch thc Dim100 - M hp thoi nh dng kiu kch thc

Command: DDIM (D)

Menu: FormatDimension Style - To kiu mi: click nt Newnhp tn kiu trong New Style Name l

Dim100click nt continue tip tc vic nh dng kiu mi Dim100



- Bng Symbols and Arrows: C th chn dng mi tn l Architectural tick (kch thc 1.5) hoc Dot (kch thc 1.25) - Bng Primary Units: Nhp gi tr cho Scale factor l 100 Ta hon tt cho bc nh dng Dim100. Click chut vo nt OK ng bng Primary Units. Click nt New tip tc nh dng cho kiu Dim20

1.3.2 nh dng kiu kch thc Dim20 - Nhp tn kiu trong New Style Name l Dim20click nt continue tip tc vic

nh dng kiu mi Dim20 - Bng Primary Units: Nhp gi tr cho Scale factor l 20 Ta hon tt cho bc nh dng Dim20. Click chut vo nt OK ng bng Primary Units Click nt Close. Ta hon tt vic inh dng kch thc. 1.4 nh dng ch vit (textstyle): Menu: FormatText Style. (Thc hin nh cc bn v trc) 2 V MT BNG SN (t l hnh v l 1:100)

- Thc hin v ng bao ca sn v dm sn (tng t nh bi bn v mng)

- Bt layer Cot-thep-san v thp chu lc cho sn:

V thanh thp s 1 vi phn mc un nh hng dn bi tp Bn v mng (ng knh mc un bng 1mm)



V thanh thp s 3 tng t nh thanh 1 V thanh thp 2 vi on thp un nh s liu hng dn di y (c th

ch v 1/2 thanh ri dng lnh MIRROR v 1/2 thanh cn li)

V thanh thp 4, 4a



V thanh 5 bng cch copy t thanh 4 ri dng lnh STRETCH ko di ra to thnh thanh 5: Lnh COPY vi base point v second point nh hnh minh ha

Lnh STRETCH (S):

- Command: s - STRETCH - Select objects to stretch by crossing-window or crossing-polygon... - Select objects: (click im 2) Specify opposite corner: (click im 3) - Select objects: enter - Specify base point or displacement: click vo mt im trn bn v - Specify second point of displacement or : 11 (r chut c ch phng nm ngang ri nhp khong cch l 11



Ghi k hiu cho thanh thp trong vng trn 5, nt mnh, layer ky-hieu, ch s 1, 2, 3,(tn thanh thp) vit vi chiu cao ch 3.5

ghi 4a, c th dng 2 lnh DText khc nhau vi chiu cao ch a l 1.8.

Hoc dng mt lnh Mtext vi ni dung ca text khi nhp l 4a^, sau chn a^, ri click vo nt a/b trn thanh Text Formating

Xem li hng dn ca bi bn v mng hon tt hnh v mt bng sn

(ghi k hiu trc, k hiu dm sn, ghi kch thc v tn hnh biu din)



3 V MT CT A-A CA SN (t l hnh v l 1:20) - Trc khi v cc hnh v theo yu cu ca bi, cn phn b hnh trn bn v

hnh dung c din tch giy v dnh cho mi hnh. Vi cc hnh bi yu cu biu din, c th phn b hnh nh sau:

Nh vy, chiu rng ca hnh biu din mt ct A-A v dm DS1 ch khong 200mm. Do , ta cn phi chn t l ca chiu di cu kin nh hn t l ca tit din ngang, hoc phi ngt bt on gia ca cu kin khng biu din. Bi hng dn thc hin theo cch ngt bt on gia ca hnh biu din. - Bt layer Truc - Lnh LINE, v cc trc (c th v mi trc di 45, khong cch cc trc c th

chn l 90)

- T trc, OFFSET (khong cch 5) v ng bao ct



- i nt va offset sang layer duong-bao-san

- Bt layer duong-bao-san, v nt dch dc - V ng nm ngang th hin mt trn sn

- OFFSET (khong cch 4) v b dy sn - OFFSET (khong cch 15) v mp di ca dm DS1 - V nt dch dc cho on gia sn - TRIM mt s on tha

- Bt layer Cot-thep-san - OFFSET t ng bao sn vi khong cch 1 v thanh 1 v thanh 4, i

layer cho on va offset sang layer Cot-thep-san



- Chnh li chiu di cc nt th hin thanh 1 v 4 cho hp l:

- V cc u thanh thp 4, v mc thp thanh 1 vi cch v mc thp nh

hng dn bi bn v mng, nhng ng knh on un cong l 1mm

- T cc on ngang ca cc thanh thp, offset vi khong cch 0.5 v ng

nhp (dng bt im trong lnh DONUT)

- Chnh chiu dai ca cc on v nhp d bt im trong lnh DONUT



- Dng lnh LEN (delta= -0.5) thu ngn on v nhp

Command: len LENGTHEN Select an object or [DElta/Percent/Total/DYnamic]: de Enter delta length or [Angle] : -0.5

- Dng lnh DONUT vi ng knh trong l 0, ng knh ngoi l 1 v cc

thanh thp s 3 v s 6



- Xa cc on v nhp bt im v donut, v thanh 2, v thm mt on thng nhp khc (t cnh phi ca ct trc 1 n cnh bn tri ca ct trc 2) d bt im trong lnh MIRROR, ng bng layer duong-bao-san d chn i tng trong lnh MIRROR

- ng bng layer Duong-bao-san, thc hin:

Nhp vo toolbar Layer Click vo biu tng th hai t tri qua ca layer Duong-bao-san ng

bng cc layer ny Khi cn lm tan bng, thc hin tng t.



- Dng lnh MIRROR v cc on thp bn phi nt ngt trong on nhp t trc 1 n trc 2

- Lm tan bng layer duong-bao-san (thc hin tng t nh khi mun ng bng

layer ny), chnh li cc nt v thp cho ph hp vi hnh v:

- Dng lnh MIRROR vi trc i xng l trc s 2 v thp cho na hnh bn

phi (tip tc ng bng layer duong-bao-san d chn i tng trong lnh MIRROR)

- Bt layer Ky-hieu, ghi k hiu cho cc thanh thp - Dng lnh LINE, CIRCLE, DTEXT, MTEXT ghi k hiu v cc s liu cho

cc thanh thp (ghi k hiu thanh: vng trong 5, kh ch 3.5). - Ghi k hiu cho cc trc (vng trong 7, kh ch 5). - Bt layer Kich-thuoc, ghi kch thc trc ct l 4000 (do hnh v ngt bt

on gia nn cn dng lnh ED chnh li s liu ca con s kch thc, b dy sn l 80)

- Bt layer Text, dng lnh MTEXT ghi ch A-A, chiu cao ch l 5 (cng c th COPY ch MT BNG SN ri dng lnh ED chnh sa li)



4 V HNH CHIU CHNH CA DM DS1 (t l hnh v l 1:20) - ng bng layer Cot-thep-san, ky-hieu:

- COPY mt ct A-A va v - Xa kch thc 80 ghi cho mt ct A-A - ng bng layer Truc, i cc nt t layer duong-bao-san sang layer duong-bao,

tan bng layer Truc - Chnh li cc nt th hin sn v tit din ngang ca dm khung K1, K2 thnh

nt khut cho ph hp vi hnh chiu chnh ca dm - Dng lnh ED i tn gi A-A thnh DM DS1

- Bt layer Cot-thep - Dng lnh OFFSET vi khong cch 1.5 v thp chu lc ca dm



- Chnh li chiu di ca cc on thp cho ph hp vi hnh v:

- Bt layer Cot-dai - V ct ai cho dm

V 1 on thng gn nt ngt (c th dng truy bt NEAREST) OFFSET on thng va v sang tri vi khong cch 5 v ai ri 6

a100 cho on u dm bn tri OFFSET on thng va v sang phi vi khong cch 10 v ai ri 6 a200 cho on gia nhp



Lnh MIRROR v cc ai bn phi nhp l1 (trc i xng trong lnh MIRROR l ng thng ng i qua im gia ca ng kch thc 4000)

V k hiu u thanh ca thanh s 9:



Lnh MIRROR v cc ai ca nhp t trc 2 n trc 3 (trc i xng

trong lnh MIRROR l trc s 2). d chn i tng trong lnh MIRROR, cn ng bng layer duong-bao v Net-khuat

- Bt layer Ky-hieu, ghi k hiu cho cc thanh thp - Ghi k hiu cho cc mt ct 1-1, 2-2 - Bt layer Kich-thuoc, ghi s liu ri ct ai

5 V MT CT 1-1, 2-2 (t l hnh v 1:20) - Bt layer duong-bao - V ng bao ngoi ca mt ct bng lnh RECTANGLE kch thc 10x15 - T ng bao ngoi, offset vo trong vi khong cch 1 v ct ai, t nt v

ct ai, offset vo trong vi khong cch 0.75 v ng nhp bt im trong lnh DONUT

- i layer cho nt v ct ai



- Bt layer cot-thep - Dng lnh DONUT vi ng knh trong l 0, ng knh ngoi l 1.5 v

mt ct ngang ca cc thanh thp - Xa cc ng v nhp - Lnh EXPLODE n khung ch nht bn ngoi, chnh on trn di thm mt

an ty , chnh on thng ng ngn li 4mm, v thm nt th hin b dy sn, v nt ngt

- Bt layer Ky-hieu, ghi k hiu cho cc thanh thp - Bt layer Kich-thuoc - Chn Dim20 ch hin hnh (Set Current) - Ghi kch thc tit din ngang ca dm - Bt layer Text, ghi tn gi 1-1 ca hnh v - COPY mt ct 1-1 v mt ct 2-2, chnh sa li hnh v cho ng vi mt ct

2-2

6 LP BNG THNG K Sinh vin t thc hin bng thng k thp da vo bi hng dn bn v mng

7 V BNG PHN LOI THP Sinh vin t thc hin bng phn loi thp

8 HON CHNH BN V

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