Repository: UIHistories Project: Booklet - One Hundred Million (Impact of UI) (1931) [PAGE 22]

EXTRACTED TEXT FROM PAGE:

thi

ield will I

Building I id High

!

tl

}

i|

s Ma c

cr

It is im] to pla< n i timal rest h in a he civil engineerin department, > rac and has h r will ha> id ibl rii .- cs nd practice. Fifteen years ago the r ults f a I es in steel frames of offi \ buildin v publish n has had a pronounced effect 1 th de\ \ th important ield and is referr I to in nearly e\ d eel wh h has appeared since that time. The development of the slope-defl< n n 1 the < ulation of stresses in rigid frames has n ull 1 1 -m xh h were made here and formed the 1 bulletin pi I in 1918. Numerous references have been made to the bulletin in th J press and extensive use has been m ' th n method in engineering offices. The rigidity of the joints of a rivet I :': in the steel skeleton of tall buildin s an im t i. u The principal inv< tigations which we have m n thi v ported in a bulletin issued in 1917. The use of rivets in tension has not been permitted I in and has been avoided whenever p dble by all others i objections have not been based on experimental ve rt ult 1 from an erroneous idea of the structural action i rivets *i tension. An extrusive investigation of this subje h th- fall; y of the objection and will have a far n h\ tural n n. The im stigations on reinforced concrel arcl winch !n> l under way for several \ irs and which are to continue : to ( have 1 n by far the most extensive m.l valuable nd analyti •! studi< which have been made in th M has b n far rea< him:. ( n entin ly different nature ha\ b tn the mtributi 1 'Din: ba ule bridges. The savin in maintenan tnd n on SIP h bridj due t > the Illinois studies on the < I; llei . have alread been lai e and in the futun will hn h it would be futile t<» timat< M I ol the

•

•

n Mi

ire (

I h e h.t

III*

1 \ |.« .

Kurthcr, 11J

malytieal methods dcvcloi

i 'i

I b\ the demit..