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Lehigh University

1969

Civil Engineering

Articles 1 - 9 of 9

Full-Text Articles in Engineering

Plastic Design In A572 (Grade 65) Steel Mechanical Properties Of Astm A572 Grade 65 Steel, Suresh Desai Jan 1969

Plastic Design In A572 (Grade 65) Steel Mechanical Properties Of Astm A572 Grade 65 Steel, Suresh Desai

Theses and Dissertations

This report constitutes the most complete study to date of the properties of higher grade of steel. The strain-hardening range of the material is studied closely and more refined techniques for the evaluation of the strain-hardening modulus are developed.


The Fatigue Strength Of Welded Partial Length Coverplated Beams, Karl Heinz Frank Jan 1969

The Fatigue Strength Of Welded Partial Length Coverplated Beams, Karl Heinz Frank

Theses and Dissertations

This thesis presents the results and analysis of an experimental investigation to determine the significant parameters influencing the fatigue life of beams with welded partial length coverplates.


A One-Year Study Of The Concrete Strains In Pre-Tensioned Members, Donald C. Frederickson Jan 1969

A One-Year Study Of The Concrete Strains In Pre-Tensioned Members, Donald C. Frederickson

Theses and Dissertations

This report presents the results of a 1 year study of creep and shrinkage behavior of pre-tensioned concrete specimens. Strain measurements from these specimens indicate that creep strain is proportional to the stress-strength ratio, while the shrinkage strain is strongly affected by the percentage of steel in a member.


Minimum Weight Design Of Frames Using Sway Subassemblage Theory, Hiroshi Yoshida Jan 1969

Minimum Weight Design Of Frames Using Sway Subassemblage Theory, Hiroshi Yoshida

Theses and Dissertations

This thesis considers the theoretical development of a minimum weight design procedure for unbraced multi-story frames which are subjected to combined gravity and wind loads.


Measurement Of Residual Stresses - A Study Of Methods, Negussie Tebedge Jan 1969

Measurement Of Residual Stresses - A Study Of Methods, Negussie Tebedge

Theses and Dissertations

The large number of residual stress measurements involved in the research project "Residual Stresses in Thick Welded Plates" required a study of different methods of residual stress measurement. In this thesis different techniques of residual stress measurement are investigated with points of consideration as to their applicability, simplicity, economy, accuracy and saving in time.


The Strength Of Welded Flame-Cut Columns Of Astm A572 Steel, Yoshio Kishima Jan 1969

The Strength Of Welded Flame-Cut Columns Of Astm A572 Steel, Yoshio Kishima

Theses and Dissertations

This thesis describes the results of an extensive investigation into the strength and behavior of steel wide-flange columns welded from flame-cut plates. The material chosen for the study is ASTM A572 (Grade 50) steel.


Partition Of Load In Shingle Joints, Ulise C. Rivera Jan 1969

Partition Of Load In Shingle Joints, Ulise C. Rivera

Theses and Dissertations

This paper summarizes the results of tension tests of two large structural shingle joints of A572 steel. One joint was fastened with A325 bolts and the other with A502 Gr. 1 rivets. A theoretical analysis of the load partition is also described.


Welding Parameters And Their Effect Of Column Strength, Jacques Brozzetti Jan 1969

Welding Parameters And Their Effect Of Column Strength, Jacques Brozzetti

Theses and Dissertations

This thesis presents a study on the influence of different welding parameters on the magnitude and distribution of residual stresses in flame-cut plates 24' x 2' made of A36 steel. The residual stress diagrams obtained after complete sectioning and after slicing are related to the original conditions of fabrication and mnaufacturing.


Proof Tests Of Two Slender-Web Welded Plate Girders, Paul J. Patterson Jan 1969

Proof Tests Of Two Slender-Web Welded Plate Girders, Paul J. Patterson

Theses and Dissertations

This report describes the testing of two full size slander web welded plate girders for the purpose of ascertaining the acceptability of proposed design recommendations for bridge girders under repeating loading.