Download or read book Strength of Steel Tubing Under Combined Column and Transverse Loading Including Tests of Columns and Beams written by Thomas William Greene and published by . This book was released on 1924 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Strength of Steel Tubing Under Combined Column and Transverse Loading Including Tests of Columns and Beams Classic Reprint written by Tom W. Greene and published by Forgotten Books. This book was released on 2017-10-28 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Strength of Steel Tubing Under Combined Column and Transverse Loading, Including Tests of Columns and Beams A large number of tests were made on steel-tubing struts of different lengths with various intensities of transverse loading. The tests included different ratios of direct compression to trans verse loading, ranging from that Of a column with no transverse load to that Of a beam with no column load. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Download or read book Strength of Steel Tubing Under Combined Column and Transverse Loading Including Tests of Columns and Beams written by Thomas William Greene and published by . This book was released on 1924 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Strength of Mild Steel Tubing Under Combined Axial and Transverse Loads written by Ralph Harland Draut and published by . This book was released on 1930 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fire Design of Concrete Filled Steel Tube Continuous Column Subjected to Concentric Or Eccentric Axial Loading written by Kingsley Ukanwa and published by . This book was released on 2017 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt: Design recommendations for concrete filled steel tubular (CFST) columns in fire are based on the results of experimental standard fire testing of CFST members where the same temperature is applied to the column over the full column height. However, this is not representative of a CFST column in a typical building especially in seismically active countries, which is continuous between floors and which, in fire, is subjected to severe fire conditions on one floor at a time while the floors above and below remain cooler. In the experimental tests described in this thesis, the columns are of 3.2 m height with the fire applied only to the central 2 m. The tests covered three different types of infill; plain concrete, bar reinforced concrete and steel fibre reinforced concrete, with the columns subjected to compressive load levels ranging from 0.33 to 0.41. End restraint conditions of fixed-fixed (F-F) and pinned-fixed (P-F)) are considered at the ends of the 3.2m length of column . The results show that the significant initial longitudinal expansion of the steel tube relative to the concrete reported by many researchers did not occur, due to the restraining effect of the unheated column between the furnace and the end supports (bottom 500 mm and top 700 mm). The use of steel fibre reinforced concrete or bar reinforced concrete increases the axial capacity of the column when loaded concentrically or eccentrically when compared to steel tubes filled with only plain concrete. This occurs due to an increase in the tensile strength of the concrete cores by the addition of steel reinforcement (bar reinforcement or steel fibre) to the concrete core which reduces the spalling of the concrete core at elevated temperatures. A design procedure to calculate the axial capacity of a CFST column in fire is presented and validated against over 238 laboratory experiments carried out over the last 36 years on CFST columns in fire by various researchers including research carried out by the author. The proposed design procedure is shown to be more accurate when compared to other design equations presented in the literature. More importantly, the proposed design procedure includes the design of the axial capacity of steel tube columns filled with steel fibre reinforced concrete, which has been covered by only a few researchers and which is becoming increasingly popular. The proposed design procedure has been used for the design of Auckland International Airport Phase 4 Pier B Extension concrete filled columns and brief details of which are presented in section 8 of this thesis.
Download or read book Strength of Tubing Under Combined Axial and Transverse Loading written by L. B. Tuckerman and published by . This book was released on 1929 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Bureau of Standards has been carrying out a systematic study of the strength of duralumin and chrome-molybdenum steel round tubing in combined transverse and axial loading.
Download or read book Steel Columns of Rolled Wide Flange Section written by Bruce Gilbert Johnston and published by . This book was released on 1942 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Buckling and Crippling of Square Steel Thin walled Tubes Fabricated with Symmetrically overlapping U channels and Foam written by David Camenish Gelder and published by . This book was released on 2012 with total page 191 pages. Available in PDF, EPUB and Kindle. Book excerpt: Testing and analysis has been performed on square steel thin-walled tubes fabricated using symmetrically-overlapping U-channels and foam. This research analyzes flange-to-flange attachment, effect of foam in the columns, effect of adhesive stiffness, and influence of steel thickness, as related to the local buckling loads, global buckling loads, and crippling loads. Four 14-foot (4.27 m) foam-filled, thin-walled, galvanized steel columns were manufactured by Novatek, Inc. and tested in axial compression with pinned boundary conditions. For three of the four configurations, the two-piece 4-in. (10.2-cm) square shell surrounded prefabricated polystyrene foam inserts; the fourth column had no foam insert. The column outer shells were composed of two 16-gauge galvanized steel channels with overlapping flanges and the webs on opposite sides of the column. The two adjacent flanges on each side of the columns were adhesively bonded together in all cases. In addition to the adhesive, two columns had either periodic screws or short welds spaced evenly along the length of the columns to delay the onset of flange buckling of the outer channel, and potentially increase the compression strength. The other two columns had adhesive only bonding the flanges, one of which had no foam filler. The various configurations all exhibited similar compression strengths. Failure for all columns initiated with local buckling, followed by global buckling and local crippling, which occurred simultaneously. The method of flange attachment, the effect of the foam in the columns, and flange thicknesses were isolated and analyzed using mechanics-based analysis, parametric studies, and finite element analysis. The results show the ideal spacing of screws or short-welds, if used, is less than or equal to 5 in (12.7 cm) for the given column length. This increases the local buckling load to the Euler buckling load and preserves the original shape of the cross-section. The adhesive needs only a tensile strength of approximately 1 ksi (6.4 kPa) to prevent local buckling for any spacing of screws or short-welds, but needs to be applied uniformly (much of the adhesive in the column tests had been scraped off of the flanges during assembly). The results also show that foam core does not increase the Euler buckling load, but does increase the crippling load by delaying inward buckling of the column webs and flanges. Using foam with the given stiffness and a yield strength of 50 psi (345 kPa), uniform foam-to-steel bonding could increase the crippling strength up to 21% even without adhesive between the flanges. Using adhesive with the given stiffness between the flanges could increase the crippling strength by up to 63% without foam. The crippling strength could increase up to 72% if both adhesive between the flanges and a foam insert are used.
Download or read book Performance of Steel Fibre Reinforced Concrete Columns Under Shock Tube Induced Shock Wave Loading written by Russell P. Burrell and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: It is important to ensure that vulnerable structures (federal and provincial offices, military structures, embassies, etc) are blast resistant to safeguard life and critical infrastructure. In the wake of recent malicious attacks and accidental explosions, it is becoming increasingly important to ensure that columns in structures are properly detailed to provide the ductility and continuity necessary to prevent progressive collapse. Research has shown that steel fibre reinforced concrete (SFRC) can enhance many of the properties of concrete, including improved post-cracking tensile capacity, enhanced shear resistance, and increased ductility. The enhanced properties of SFRC make it an ideal candidate for use in the blast resistant design of structures. There is limited research on the behaviour of SFRC under high strain rates, including impact and blast loading, and some of this data is conflicting, with some researchers showing that the additional ductility normally evident in SFRC is absent or reduced at high strain loading. On the other hand, other data indicates that SFRC can improve toughness and energy-absorption capacity under extreme loading conditions. This thesis presents the results of experimental research involving tests of scaled reinforced concrete columns exposed to shock wave induced impulsive loads using the University of Ottawa Shock Tube. A total of 13 half-scale steel fibre reinforced concrete columns, 8 with normal strength steel fibre reinforced concrete (SFRC) and 5 with an ultra high performance fibre reinforced concrete (UHPFRC), were constructed and tested under simulated blast pressures. The columns were designed according to CSA A23.3 standards for both seismic and non-seismic regions, using various fibre amounts and types. Each column was exposed to similar shock wave loads in order to provide direct comparisons between seismic and non-seismically detailed columns, amount of steel fibres, type of steel fibres, and type of concrete. The dynamic response of the columns tested in the experimental program is predicted by generating dynamic load-deformation resistance functions for SFRC and UHPFRC columns and using single degree of freedom dynamic analysis software, RCBlast. The analytical results are compared to experimental data, and shown to accurately predict the maximum mid-span displacements of the fibre reinforced concrete columns under shock wave loading.
Download or read book Tensile and Shear Behaviour of Fin plate Connections to Hollow and Concrete filled Steel Tubular Columns at Ambient and Elevated Temperatures written by Mark Hadyn Jones and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Following recent events such as the World Trade Center building collapse and the Cardington large scale structural fire research program, the fire behavior of connections has now become an important research subject. This thesis presents the results of experimental, numerical and theoretical studies into the behavior of simple welded fin-plate to concretefilled tubular (CFT) columns loaded by tensile or shear force. Such connections represent a simple single-sided joint solution to steel CFTs which are considered an attractive and robust structural element. Experiments have been performed at both ambient and elevated temperatures against the results of which numerical finite element models have been validated. The ranges of parameters encompassed by the tests include column cross-section shape; column and finplate thickness; concrete in-fill; elevated temperatures and connection lever arm. The observed failure modes include fracture of the fin-plate and tearing out of the tube around the welds. By considering the results of previously published research, the current design method for similar connections under purely tensile load, in CIDECT Guide 9, based on a deformation limit of 3% of the tube width is shown to be inadequate when evaluating the ultimate strength of such connections. By comparing the results from the current test program which failed in the fin-plate with Eurocode guidance for failure of a fin-plate alone under shear and bending load it is shown that the column face influences the overall connection strength regardless of failure mode. Concrete in-fill is observed to significantly increase the strength of connections over empty specimens, and circular column specimens were observed to exhibit greater strength than similarly proportioned square columns. When validating the numerical model against elevated temperature tests it was found that the strength reduction factors suggested by Eurocode for steel at elevated temperature are appropriate. The numerical models developed have been used to perform extensive parametric studies from which simple hand calculation methods have been developed for evaluating the strength of the column component of square CFTs under either tensile or shear load imparted through a fin-plate connection. The simple hand calculation procedures are based upon defining a rigid plate deformation pattern for the connection and then applying the internal work principle. For connections under shear load a method is presented for combining the column failure load with the fin-plate failure derived from existing Eurocode guidance. Both simple hand calculation methods are compared favorably with available test results. A limited number of tests and numerical validation have also been performed for reverse channel to CFT connections loaded in shear at both ambient and elevated temperatures.
Download or read book The Flexural Fatigue Strength of Prestressed Steel I Beams written by W. Daniel Reneker and published by . This book was released on 1962 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this investigation was to study the flexural fatigue strength of two prestressed steel I-beams which had previously been fabricated in connection with a jointly sponsored project under the auspices of the Iowa State Highway Commission. The beams were prestressed by deflecting them under the action of a concentrated load at the center of a simple span, then welding unstressed high strength steel plates to the top and bottom flanges to retain a predetermined amount of prestress. The beams were rolled sections of A36 steel and the plates were USS "T-1" steel. Each of the two test specimens were subjected to an identical repeated loading until a fatigue failure occurred. The loading was designed to produce stresses equivalent to those which would have occurred in a simulated bridge and amounted to 84 percent of a standard H-15 live load including impact. One of the beams sustained 2,469,100 repetitions of load to failure and the other sustained 2,756,100 cycles. Following the fatigue tests, an experimental study was made to determine the state of stress that had been retained in the prestressed steel beams. This information, upon which the calculated stresses of the test could be superimposed, provided a method of correlating the fatigue strength of the beams with the fatigue information available on the two steels involved.
Download or read book Applied Strength of Materials for Engineering Technology written by Barry Dupen and published by Createspace Independent Publishing Platform. This book was released on 2018 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: This algebra-based text is designed specifically for Engineering Technology students, using both SI and US Customary units. All example problems are fully worked out with unit conversions. Unlike most textbooks, this one is updated each semester using student comments, with an average of 80 changes per edition.
Download or read book Building Code Requirements for Structural Concrete ACI 318 05 and Commentary ACI 318R 05 written by ACI Committee 318 and published by American Concrete Institute. This book was released on 2005 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Guide to Stability Design Criteria for Metal Structures written by Ronald D. Ziemian and published by John Wiley & Sons. This book was released on 2010-02-08 with total page 1120 pages. Available in PDF, EPUB and Kindle. Book excerpt: The definitive guide to stability design criteria, fully updated and incorporating current research Representing nearly fifty years of cooperation between Wiley and the Structural Stability Research Council, the Guide to Stability Design Criteria for Metal Structures is often described as an invaluable reference for practicing structural engineers and researchers. For generations of engineers and architects, the Guide has served as the definitive work on designing steel and aluminum structures for stability. Under the editorship of Ronald Ziemian and written by SSRC task group members who are leading experts in structural stability theory and research, this Sixth Edition brings this foundational work in line with current practice and research. The Sixth Edition incorporates a decade of progress in the field since the previous edition, with new features including: Updated chapters on beams, beam-columns, bracing, plates, box girders, and curved girders. Significantly revised chapters on columns, plates, composite columns and structural systems, frame stability, and arches Fully rewritten chapters on thin-walled (cold-formed) metal structural members, stability under seismic loading, and stability analysis by finite element methods State-of-the-art coverage of many topics such as shear walls, concrete filled tubes, direct strength member design method, behavior of arches, direct analysis method, structural integrity and disproportionate collapse resistance, and inelastic seismic performance and design recommendations for various moment-resistant and braced steel frames Complete with over 350 illustrations, plus references and technical memoranda, the Guide to Stability Design Criteria for Metal Structures, Sixth Edition offers detailed guidance and background on design specifications, codes, and standards worldwide.
Download or read book Building Code Requirements for Structural Concrete written by ACI Committee 318 and published by . This book was released on 2014 with total page 519 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Design of Plated Structures written by Darko Beg and published by John Wiley & Sons. This book was released on 2012-01-09 with total page 257 pages. Available in PDF, EPUB and Kindle. Book excerpt: The main aim of this book is to provide practical advice to designers of plated structures for correct and efficient application of EN 1993-1-5 design rules. In chapter 1 the purpose, the scope and the structure of the book is explained. In chapter 2 a rather detailed and commented overview of EN 1993-1-5 design rules is given following the structure of the standard. Shear lag effect as well as plate buckling problems due to direct stresses, shear forces, transverse forces and interactions of these effects are covered. This chapter also includes a reduced stress method and a finite element analysis approach to plate buckling problems. A large number of design examples illustrate the proper application of individual design rules. Chapter 3 and 4 bring two complete design examples on a crane runway and a box-girder bridge.
Download or read book Principles of Structural Design written by Ram S. Gupta and published by CRC Press. This book was released on 2019-06-17 with total page 599 pages. Available in PDF, EPUB and Kindle. Book excerpt: Timber, steel, and concrete are common engineering materials used in structural design. Material choice depends upon the type of structure, availability of material, and the preference of the designer. The design practices the code requirements of each material are very different. In this updated edition, the elemental designs of individual components of each material are presented, together with theory of structures essential for the design. Numerous examples of complete structural designs have been included. A comprehensive database comprising materials properties, section properties, specifications, and design aids, has been included to make this essential reading.
