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Solutions for certain rectangular slabs continuous over flexible ...

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20 ILLINOIS ENGINEERING EXPERIMENT STATION<br />

Since the beam is rigid, the total deflection must vanish on the<br />

line y = 0. There<strong>for</strong>e<br />

<strong>for</strong> every value of x.<br />

gives<br />

J L J y=0 ==0<br />

w] = wo + wi = 0<br />

Substitution of (9) and (19) into this equation<br />

a, = -(1 + av) e-a". (20)<br />

There<strong>for</strong>e the part of the deflection which is due to the beam reaction<br />

is<br />

Pa 2 1<br />

wi- = 2 -(l+av)(1+aly)e-(v'+ll) sin au sin ax<br />

2rN 1,2.,.. n<br />

Pa 2 1<br />

= 27- Z [l+a(v+'yI)]e-'(+Iul) sin au sin ax (21)<br />

2xr3N f..... n<br />

Pay 1<br />

--- E--a ,<br />

2r2N .X,.. n 2<br />

y[e-«(+i'i) sin au sin az.<br />

As in the previous solution, one may define a function<br />

P 1<br />

01 = NVw = - E - e-"(•~+Iv) sin au sin ax<br />

7 1,2,3,.. n<br />

(22)<br />

(<br />

+ - e- '' + l y l sin au sin ax.<br />

A set of equ,2,,ations,<br />

A set of equations,<br />

2N - = - y--_<br />

a82<br />

ay<br />

2N = y ,<br />

8 xay Ox<br />

(23)<br />

v

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