Civil and Environmental Engineering Commons^™

Floods Of May 1943 In Missouri, John August Short

Professional Degree Theses

"The year 1943 will be remembered for a long time as a year of great floods in the Middle West. Floods were occurring in some section of Missouri from April to June. The period of highest stream flow in general occurred during the month of May, and it is the May flood to which this paper pertains. It is quite possible that the importance of this flood is not generally recognized. Although everyone realizes that it was a major catastrophe, only planners for the future, particularly designing engineers, can fully appreciate the benefits which will be obtained from the information …

Cornell University School Of Civil Engineering Tests On Light Beams Of Cold-Formed Steel, Cornell University School Of Civil Engineering

CCFSS Library (1939 - present)

I. SCOPE OF THIS REPORT 24 symmetrical I-beams were tested in bending. They represent 12 different types of beams, with two beams of each type. The beams are formed from two identical channels, furnished with lips on both flanges, joined by bolting in the web. These tests complete the entire series of such I-beams, except for one type (two specimens) which arrived in damaged condition and are now being replaced by the manufacturer.

Cornell University School Of Civil Engineering Tests On Light Beams Of Cold-Formed Steel, Cornell University School Of Civil Engineering

CCFSS Library (1939 - present)

I. SCOPE OF THIS REPORT (1) Ten tests were conducted on the following beams (a) 18 - 1/2 -14, 2, and 3; and 16- 1/2 - 2. These are the last tests of the original series of beams. Specimens 16- 1/2 - 1 and 3 after welding showed bad distortions in shape and for this reason could not be used. (b) In order to supplement the tests, six more beams with unstiffened flanges were tested. For three of these beams left over studs of the old stud tests were used. These beams are 4 in. deep and are designated as …

Cornell University School Of Civil Engineering Tests On Light Beams Of Cold-Formed Steel, Cornell University School Of Civil Engineering

CCFSS Library (1939 - present)

I. SCOPE OF THIS REPORT (a) Twenty tension tests were carried out on specimens cut from the steel of which those beams were fabricated for which tension tests are not inculded in the 27th Report. This completes the tension tests for the present series of beams. (b) A start was made in the final evaluation of the results of the beam tests. The part of the evaluation completed to date is included in this report.

A Study Of The Pollution Of The Meramec River, William Quentin Kehr

Professional Degree Theses

"Early in 1940 a project was undertaken for a complete survey of the Meramec River Basin. This project, of which the pollution study was a part, was one of the most extensive surveys made of an entire river basin and included detailed studies of soil erosion, land, use, pollution, rainfall, and recreation in the Meramec Basin. The pollution study covered that portion of the Meramec River from its confluence with the Mississippi River to Steelville, a distance of about 140 river miles; the Big River from its mouth to a point west of Flat River, a distance of 107 river …

Cornell University School Of Civil Engineering Tests On Light Beams Of Cold-Formed Steel, Cornell University School Of Civil Engineering

CCFSS Library (1939 - present)

I. SCOPE OF THIS REPORT Tests were conducted on 18 beams, viz., 16-1 3/4-1,2,3; 18-1 1/2-1,2,3; 16-1 1/4-1,2,3; 14-1 1/2-1,2,3; 18-1-1,2,3; and 14-3/4-1,2,3. This report contains only the data of the tests. The evaluation of the test results will be carried out after the remainder of the beam tests and the tension tests have been completed.

Cornell University School Of Civil Engineering Tests On Light Beams Of Cold-Formed Steel, Cornell University School Of Civil Engineering

CCFSS Library (1939 - present)

I. SCOPE OF THIS REPORT Tests were conducted on nine beams with unstiffened top flanges, viz., 14-2 1/4-1,2,3; 16-2 1/2-1,2,3; 16-3,1,2,3. Beam 14-2 1/4 - 2 was the first to be spot-welded in our shop. This beam warped badly in welding and, when tested, failed at a much lower load thant the other two beams of the same type, due to initial distortion. For this reason the results of this test were discarded and are not included in this report. Beams 18-2 1/2 according to our drawing were to be of 18 ga. metal. It turned out, however, that all …

Cornell University School Of Civil Engineering Tests On Light Beams Of Cold-Formed Steel, Cornell University School Of Civil Engineering

CCFSS Library (1939 - present)

I. SCOPE OF THIS REPORT Tests were conducted on 12 beams with unstiffened top flanges, viz., beams 12-3-3; 12-5-1,2,3; 14-3 1/4-1,2,3; 16-4 1/2-1,2,3; 18-3 3/4-3; 20-3 3/4-3. This report contains only the data of the tests. The evaluation of the test results will be carried out after a larger number of beams have been tested.

Cornell University School Of Civil Engineering Tests On Light Beams Of Cold-Formed Steel, Cornell University School Of Civil Engineering

CCFSS Library (1939 - present)

I. SCOPE OF THIS REPORT Tension tests were carried out on strip specimens of the steel of which beams 14-3 1/4, 18-3 3/4, 18-5, and 20-3 3/4 are fabricated.

School Of Civil Engineering Tests Of Light Beams Of Cold Formed Steel For The American Iron & Steel Inst., Cornell University School Of Civil Engineering

CCFSS Library (1939 - present)

I. SCOPE OF THE REPORT Six beams of the new series with unstiffened top flanges have been tested; viz., two specimens each of beams 12-3, 18-3 3/4, and 20-3 3/4. (The first number in this designation gives the gage thickness, the second the half-width of the top flange). This report contains only the data of the tests. The evaluation of the test results will be carried out after a larger number of beams have been tested.

Cornell University School Of Civil Engineering Tests On Light Beams Of Cold-Formed Steel, Cornell University School Of Civil Engineering

CCFSS Library (1939 - present)

SCOPE OF THIS REPORT all the beams heretofore tested in this program were furnished with web stiffeners in order to aviod crushing of the web at the load points and at the supports. In practical application the use of such stiffeners at points of concentrated loads would not only be uneconomical but also would impair the versatility of the elements, since stiffeners would have to be spaced on each individual beam according to the particular location and loading. For this reason it seem essential to investigate the resistance of unreinforced webs to concentrated loading. The tests reported herein are to …

Research Investigation Of Organized Drainage Districts In Mississippi, Lee Dorsett Dumm

Professional Degree Theses

"In the early days farmers attempted to drain their land individually, but they soon found that water did not recognize property lines. One farmer would ditch his land only to find that the water from his neighbor's farm would wash over has land and fill up his ditches. Another would attempt to ditch his land, but would find that no outlet was available for his ditch unless he constructed it across the land of his neighbor. Because of such situations, groups of farmers cooperated in constructing drainage improvements. However, difficulty was encountered in reaching an agreement as to the division …

Tests On Cold Formed Steel Studs For The American Iron And Steel Institute, American Iron And Steel Institute

CCFSS Library (1939 - present)

I. SCOPE OF THIS REPORT This report covers tests of prebent studs performed to check the results of the analysis made in the 12th report.

Tests On Cold Formed Steel Studs For The American Iron And Steel Institute, American Iron And Steel Institute

CCFSS Library (1939 - present)

I. SCOPE OF THIS REPORT In the 12th Report, Section III, a method was proposed for the determination of the required strength of collateral attachments. In addition, a test procedure was suggested to test the validity of the theoretical considerations on which this determination was based. In the present report two more formulae are developed which will serve for the experimental verification of this approach. Preparations for these tests are now under way.

Tests On Light Beams Of Cold Formed Steel, American Iron And Steel Institute

CCFSS Library (1939 - present)

1. SCOPE OF THIS REPORT Failure tests have been carried out on beams 0-3, P-3/Q-3, I-1, I-2, I-3, H-1, H-2, H-3, and K-1. As mentioned in the Sixteenth Progress Report (p. 15) it was, anticipated that beams H,I,K, as originally designed, would fail in pure yielding. Since such a failure is not revealing for this investigation, an attempt was made to narrow both flanges of these beams. This work was done in the shops of the School of Civil Engineering and of the School of Mechanical Engineering. It turned out, however, that in cutting off parts of the flanges, the …

Tests On Light Beams Of Cold Formed Steel For The American Iron And Steel Institute, American Iron And Steel Institute

CCFSS Library (1939 - present)

I. SCOPE OF THIS REPORT Failure tests on two specimens each of beam type A, B, C, D, E, F, G, have been carried out. The lengthy final evaluation of the results will be given in a later report. However, the results of the tests reported herein allow the drawing of rather definite conclusions.

Cornell University School Of Civil Engineering Tests On Light Beams Of Cold-Formed Steel, Cornell University School Of Civil Engineering

CCFSS Library (1939 - present)

I. SCOPE OF THIS REPORT In the preceding 14th Progress Report a method was proposed to determine the forces acting in the welds in the web of I-beams composed of two channels. This method essentially has been based on the magnitude "e", the distance of the flexural center from the axis of the web. A formula for "e" was given which applies to symmetrical channels of uniform thickness. In the present report this expression for "e" will be simplified and a more general expression will be derived for "e" for symmetrical channels with web thickness differing from flange thickness. Furthermore, …

Cornell University School Of Civil Engineering Tests On Light Beams Of Cold-Formed Steel, Cornell University School Of Civil Engineering

CCFSS Library (1939 - present)

I SCOPE OF THIS REPORT It has been mentioned repeatedly in previous Reports that the spot welds in the web joining the two parts of the beam tended to pull apart at the supports. It is therefore obvious that, in order to properly design such beams, this fact must be taken into consideration. The present report undertakes to give an analysis of this behavior and to stipulate certain requirements with respect to these welds (strength, spacing) which have to be met in order that such failures may be excluded. The present analysis pertains only to beams made up of two …

School Of Civil Engineering, Cornell University Tests On Cold Formed Steel Studs For The American Iron And Steel Institute, Cornell University School Of Civil Engineering

CCFSS Library (1939 - present)

I. SCOPE OF THIS REPORT (a) Results of tests on single stud panels having collateral attached at various intervals along the studs and by means of several types of fastenings. (b) Shear strength of Armstrong Linoleum Cement bonding Homosote to steel studs. (c) Discussion of the theoretical factors in formulating test program. (d) Summary.

Cornell University School Of Civil Engineering Tests On Light Beams Of Cold-Formed Steel, Cornell University School Of Civil Engineering

CCFSS Library (1939 - present)

I. SCOPE OF THIS REPORT All tests on the present series of 24 beams (series D and E) have been completed. In particular since the time of the 10th Progress Report the following tests have been carried out: Failure tests on eleven beams, viz. D-18-18-88a and b; E-18-14-88a and b; E-18-16-83a and b; D-18-14-88a and b; D-18-16-88a and b; E-18-12-816a. In addition further investigations have been made on the bottom flanges of the beams D-18-16-88a and b and E-18-12-816a.

School Of Civil Engineering, Cornell University Tests On Cold Formed Steel Studs For The American Iron And Steel Institute, Cornell University School Of Civil Engineering

CCFSS Library (1939 - present)

I. SCOPE OF THIS REPORT This report presents: (a) Results of buckling tests on Type A studs with "minimum restraint" or "actual" end condition. (b) Diagrams summarizing results of all tests on individual studs.

Cornell University School Of Civil Engineering Tests On Light Beams Of Cold-Formed Steel, Cornell University School Of Civil Engineering

CCFSS Library (1939 - present)

I. SCOPE OF THIS REPORT At the present time failure tests are being carried out on the 24 beams series D and E. To date the following beams have been tested: D-18-16-816a and E-18-16-816a and b; E-18-14-816a and b; D-18-14-816a and b; E-18-12-816b; D-18-816a and b; E-18-18-88a and b; total - 13 beams. The failure tests on those beams are carried out in a way different from data used heretofore (see section II of the report). As a result very extensive data are obtained for each of these beams. Since the evaluation of these data will require considerable time it …

American Iron And Steel Institute Tests On Cold Formed Steel Studs, American Iron And Steel Institute

CCFSS Library (1939 - present)

I. SCOPE This report presents results of buckling tests on: Type A studs with free-ends condition, Type B studs with "minimum restraint" or "actual" end condition.

Tests On Cold Formed Steel Studs American Iron And Steel Institute, American Iron And Steel Institute

CCFSS Library (1939 - present)

I. PURPOSE OF THE INVESTIGATION The purpose of the investigation is to provide technical information for the development of standard specifications for steel stud wall construction, suitable for inclusion in building codes.

Cornell University School Of Civil Engineering Tests On Light Beams Of Cold-Formed Steel, Cornell University School Of Civil Engineering

CCFSS Library (1939 - present)

I. SCOPE OF THIS REPORT 1. A stress investigation has been made at the load points of beam E-18-14-88a for spans of 6 and 12 ft. with center load and for spans of 12 ft. with quarter point loading. 2. A similar investigation has been made on beam E-18-12-816a.

Cornell University School Of Civil Engineering Tests On Light Beams Of Cold-Formed Steel, Cornell University School Of Civil Engineering

CCFSS Library (1939 - present)

I. SCOPE OF THIS REPORT 1. A.stress investigation has been made on beam E-18-12-816 b at the load points with 6 and 12 ft. span and center load and with 12 ft. span and quarter point load. 2. The results of these tests seem to show that, after the completion of similar tests on two more beams of the present shipment enough data will have been gathered to answer the question of stress distribution. It was therefore thought advisable to carry out a more complete investigation on this beam. For this purpose the stress distribution at five additional cross sections …

Cornell University School Of Civil Engineering Tests On Light Beams Of Cold-Formed Steel, Cornell University School Of Civil Engineering

CCFSS Library (1939 - present)

I. OBJECT OF THIS REPORT 1. Investigation of the stress distribution in the bottom flange of beam A-14-612a after its reconstruction. 2. Investigation of the strain distribution in the bottom flange of beam D-18-12-816a. 3. Observations on beams E-18-12-816a and b.

Cornell University School Of Civil Engineering Tests On Light Beams Of Cold-Formed Steel, Cornell University School Of Civil Engineering

CCFSS Library (1939 - present)

I. IDENTIFICATION OF SPECIMENS. The method of designation used hitherto is not sufficiently differentiated to identify the present and future specimens since specimens with identical bottom flanges but different top flanges are used. For this reason from now on each specimen is designated by symbols and figures, for example D-18-16-88a in which: D designates a series of beams, 18 designates the gage of mterial used for web and bottom flange, 16 designates the gage of material used for the top flange, 8 designates the depth of the section in inches, 8 designates the width of the bottom flange in inches, …

The Clark National Forest Of Missouri, Walter A. Werner

Professional Degree Theses

"The question might logically arise as to the appropriateness of a thesis with a forestry title being submitted for an engineering degree. The writer has been connected with the United States Forest Service for the past four years in an advisory capacity on staff of the Forest Supervisor of the Clark National Forest, during which time he has found that the engineers and construction men have performed a major function in the development of the forest.

As the initial development consisting of lineal surveys, construction of roads and telephone lines, erection of fire lookout towers, planning and erection of ranger …

Photoelastic Investigation Of Short Beams, Ross R. Carrolla

Masters Theses

"In this investigation the author used beams made of Bakelite. They were of rectangular cross-section and centrally loaded. These beams were viewed in polarized light and the maximum fiber stresses observed in that manner were compared with those computed from the flexure formula. The purpose was to determine the minimum length-depth ratio for which the latter gave fairly accurate results"--Preface, page 6.