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# 练习 : 作 Y A , M A , M K , Q K 影响线 . - PowerPoint PPT Presentation

M A. Y A. x. x. l. P=1. M K. M A 影响线. Q K. 1. 1. Q K 影响线. Y A 影响线. P=1. A. K. l/2. l /2. l /2. l /2. M K 影响线. 练习 : 作 Y A , M A , M K , Q K 影响线. 解 :. x&lt; l /2. M K =0. Q K =0. X&gt; l /2. M K = -(x - l /2 ). Q K =1. M A. Y A. x. x. l. P=1. M K. M A 影响线. Q K.

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## PowerPoint Slideshow about '练习 : 作 Y A , M A , M K , Q K 影响线 .' - josie

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Presentation Transcript

MA

YA

x

x

l

P=1

MK

MA影响线

QK

1

1

QK影响线

YA影响线

P=1

A

K

l/2

l/2

l/2

l/2

MK影响线

x<l/2

MK=0

QK=0

X>l/2

MK= -(x - l/2 )

QK=1

MA

YA

x

x

l

P=1

MK

MA影响线

QK

1

1

QK影响线

YA影响线

P=1

P=1

k

B

i

Mi , Qi 影响线.

A

A

K

l/4

l/4

l/4

l/4

l/2

l/2

l/2

l/2

MK影响线

MA

YB

x<l/2

MK=0

QK=0

X>l/2

MK= -(x - l/2 )

QK=1

P=1

k

B

i

A

l/4

l/4

l/4

l/4

MA

YB

x

x

l/2

P=1

MK

l/2

MA影响线

l/4

YB

QK

1

l/2

MK影响线

YB影响线

1

QK影响线

Mi

l/4

P=1

Mi影响线

1

Qi

Qi影响线

Mi , Qi 影响线.

x<l/4

QK=-1

MK=l/4

MK= l/4-(x - l/4 )=l/2-x

X>l/4

QK=0

Qi=0

Mi=0

x<3l/4

Mi=3l/4 -x

X>3l/4

Qi=1

A

2

1

B

3

C

4

D

2m

1m

1m

1m

1m

1m

1m

2m

1m

1m

1

M2

M1

1

YA影响线

YA

M1影响线

1

M2影响线

1

1

A

2

1

B

3

C

4

D

2m

1m

1m

1m

1m

1m

1m

2m

1m

1m

Q2

Q3

1

MB

Q2影响线

1

MB影响线

1

2

Q3影响线

1

A

2

1

B

3

C

4

D

2m

1m

1m

1m

1m

1m

1m

2m

1m

1m

YC

QC左

Q4

1

QC右

YC影响线

1

Q4影响线

QC左影响线

1

QC右影响线

1

k

C

D

E

P=1

YA

YC

MA

Mk

YA影响线

MA影响线

YC影响线

Mk影响线

k

C

D

E

P=1

Qk

QC左

QC右

MC

Qk影响线

MC影响线

QC左影响线

QC右影响线