The Indianapolis journal. [volume] (Indianapolis [Ind.]) 1867-1904, 1902-01-30
BRIDGES OVER FALL CREEK
THEY ARE DISCUSSED IN PAPER By
D.B. LUTEN, OF LAFAYETTE.
CITY Engineer Nelson, Of This City,
Engages i'm the Discussion-Thc
Evening Session.


ing. He alluded TO similar organizations
in other States and said the best the Indi-
ana society could hope to do is to view i'm
partially the strong and weak points In the
organization of the other associations and
try to embody the best features in the pro-
posed new constitution of the Indiana So
ciety The object of a State engineers So
ciety. as expressed in most of the constitu-
tions, said President Pence, is the 'encour-
agement of professional Improvement and |
good-fellowship among it's members In /
conclusion he said: 1.-The live question be- |
fore us at this time centers directly upon |
the means at our disposal to accomplish
the desired results. 1t takes loyal and con-
scientious men back of the system of ma
chinery of such an organization to make
it CO."
Secretary Charles c. Brown, of Indian
apolis reported that the receipts for the
year amounted to s5363S; expenditures,
SSH 81, leaving balance of S24.77. Nineteen
/ new members were elected to membership,
making a total of eighty -three. The execu-
/ tive committee reported several proposed
! changes in the constitution. 1t is desired
/ to make the executive board more effective
by having four trustees. two of them to be
| elected each year for two years. The cleo
ton of officers OF the society wouId De III
! the hands of the executive board, ana the
| election to be held the second day of the
convention instead of the last day
MUNICIPAL STATISTICS.
The society adopted a resolution submit
ted by the committee stating that, In the
opinion of the Indiana Engineers Society,
the United States Census Bureau should
include municipal statistics in its inquiries,
particularly those relating to municipal
public works. to be published at less inter-
walls than every ten years. The Indiana
society approves of the proposed establish
ment of a permanent census or other sta
tistical bureau at Washington whose or
ganization would include experts in the
engineering, finance, etc, or munlclpal pup
The committee on materials of construc-
| ton made a report touching on the recent
attempts TO standardize methods OF tests
! of materials, and new and improved ma
terias at the disposal of the engineer Re-
garding future work the committee report
ed that efforts should be made TO secure
good papers Tor the society meetings; TO re-
port standard methods of tests; TO report
new methods and processes resulting III
improved materials; TO discuss the ways
and means whereby there shall be estab-
; lished some central bureau FOR the state
of Indiana, supported or controlled by the
; State at which engineers and municipal OF
ficers of the State can, at a nominal cost,
, have material tested and reported on by
s B. Newberry of Sandusky, o., read
> an interesting paper on Portland cement.
, | II was technical in nature, but contained
! | much interesting matter for the engineers.
> | He gave the proportions OF material that
! should be used in concrete as follows:
. Cement, l; sand, 4; gravel, IL.
: Cement, /; sand. 5; gravel, 4.
. Cement, l; sand, 4; stone, y.
Cement, l. sand, 3; stone, 1212.
o The most interesting paper OF the day
: was read by ID. b. Luten, of Lafayette, on
e the subject. Concrete Arches he salo
;; in part: -. o,,a con.
= crete reinforced with steel bear much the
n same relation toward stone as bulidlns
- materials that wrought iron ana steer, re-
I. spectively bear TO cast iron. Thirty year:
!; ago cast iron as a building material wa:
- largely replaced by wrought iron, ana latel
- by steel. and four-story buildings gave way
q to buildings of twenty stories and up
- | wards bridge spans of hundreds Oh lee
- became practicable, and even the smalles
structures became subjects OF accurate an'
efRcient design To-day we are passing
through a similar evolution from stone q
concrete-steel. Already comparatively TAI
buildings have been erected or the new
=, material. walls floors and roofs, complete
being of concrete-steel
LOCAL BRIDGES.
Of IAN interesting comparison of the roug
H. and inaccurate methods applicable to
lie stone arch as compared with the more II
G. fined treatment of the concrete-steel struC
ay ture may be seen in Indianapolis. III
lis bridges across Fall creek Meridian an
tv Illinois streets are of concrete-steel, viii
nj that at Central avenue is of stone. None
he these structures is to be commended {
= | examples of their types of construction, a
~ | OF them are more or less crude and fault
IA | i'm design, but the contrast between u
~ | usual stone arch type and the concret
steel type is we'll illustrated. The stone arc
-, | is segmental. circular, ungainly, top-heaN
az and awkward. The cOncrete-steel arch,
~ are delicate and refined In comparison, Il
| rib MIA
S Tu should that the arch supports hlled roa
III III Way IL may also be interesting TO add tn
~ span and roadway would have cost on
Gu third more than the concrete-steel stru
~ lures, with much more CONSTRUCTED waite
raj "During the past year. concrete arch
no have been quite extensively adopted
IN several counties in this State in place
IS ! steel for highway bridges Marion coun
Wv has erected five concrete and two concret
'us steel arches of from twenty TO ttty-fe
' ' span" Mr.. Luten said other counties n
'as also erected many concrete-steel bridges
VI The paper was discussed generally, Jam
on. B. Nelson city civil engineer of India
be apolis taking an active interest IN TN me %
II. crete-steel work that has been erected
80 Marion county.
W. w X HIATT, of Lafayette, read tech
Ia cal paper on Masonry Arches
en- EVENING SESSION.
At the evening session of the socie
President Pence appointed the members
two committees. The committee on pre-
on. and resolutions is composed of o.
IRIS. Smith, c. G. II. Goss and Charles
eet Brown The committee on nomination
ter composed of j. s. Humphrey, j. II. Fate
tie and b. F. Nesbit The latter commit
eOn will report to-day. One of the memb
two stated last evening that he was in fa'
Of retaining the old officers of the soci'
and this may be done. In case it is
cided TO elect a new president X. l.. Sa
,,aa EFT. of Earlham College. the present
~ president. may be chosen
Gu A l.. Johnson, representing a St 10
Q. expanded metal manufacturing and G.
-. tracing firm consumed most OF the Il
~ of the evening session with an fllustra
lecture on some stesl concrete constr
81 "a tons He explained the stereoptican vie
N by telling of the advantages OF eNpan'
steel and concrete construction. Many
the views were taken at the Buffalo TX
In sition and showed the poor work or c
mi struction OF the exposition buildings.
the G. f. Waesche. of Lafayette, read the
per- port OF the committee on bridges and ]
no sonry. IL was technical In nature
.Ock said the committee believed that the