Comparative Study Among The Different Types Of Connections In Steel Building Frames

'Steel is one of the most important construction materials today. Its application continues to grow and to diversify, where before buildings were of bricks and mortar today ferroconcrete is the material of choice. In other countries steel-frame buildings are preferred although more expensive, steel-frame buildings are faster to build. A steel industry used to be regarded as the measure of a country's level of development. The more sophisticated the steel industry of a nation, the higher is its level of industrialization. Excerpts of our Prime Minister, YAB. Dato' Seri Dr. Mahathir Mohamad opening address at the Official Opening of the Malaysian Structural Steel Association Convention 2000. This clearly shows that the steel construction has it's very bright future in this country. Tl1e steel consumption is no longer an issue within engineering or steel industry, but it symbolises the level of industrialisation of a country. Our government has stressed the importance of using modem construction practice towards achieving high quality structure. So with all these in mind, steel structures can provide a better choice for the construction industry present needs. Therefore a better understanding of steel structural performance is vital, in order to achieve an optimum and cost balance design. This project is carried out to determine the effect of the choice of the connection types on members' sizes and the economical aspect in the design of a steel structure. STAAD-III analysis and design software is being used to analyse and design for the structure. A release factor, f1 is being introduced for partial moment release use to represent semi-rigid connection behaviour. From this study, it can be concluded that semi-rigid connections achieve the most optimum design in terms of beam section and cost.

Dieses Buch führt in alle Aspekte der sicheren Berechnung, Bemessung und Konstruktion von wirtschaftlichen modernen Verbindungen im Stahlbau ein. Die Hintergrunderläuterungen sind nicht an eine spezifische Norm gekoppelt, sondern es werden unterschiedliche Normen und Methoden verglichen, die in der Praxis zur Anwendung kommen, wie z. B. Eurocode, AISC, DIN, BS. Anhand einer Reihe von Beispielen werden Problemlösungen detailliert beschrieben und illustriert. Damit erhält der Leser alle notwendigen Werkzeuge an die Hand, um auch komplexe Probleme bei der Konstruktion von Verbindungen zu lösen. Das Buch ist für Berufseinsteiger, für erfahrene Praktiker sowie auch für Stahlbaufachleute eine Arbeitshilfe, denn es werden einfache und komplexe Beanspruchungen an Verbindungen abgebildet. Weniger ausführlich werden Erdbebenauslegung, Schweißnähte, die Wechselwirkung mit anderen Materialien (Beton, Holz) und kalt geformte Verbindungen behandelt.

This book is the Proceedings of a State-of-the-Art Workshop on Connenctions and the Behaviour, Strength and Design of Steel Structures held at Laboratoire de Mecanique et Technologie, Ecole Normale, Cachan France from 25th to 27th May 1987. It contains the papers presented at the above proceedings and is split into eight main sections covering: Local Analysis of Joints, Mathematical Models, Classification, Frame Analysis, Frame Stability and Simplified Methods, Design Requirements, Data Base Organisation, Research and Development Needs. With papers from 50 international contributors this text will provide essential reading for all those involved with steel structures.

This book publishes the proceedings from the Third International Workshop on Connections in Steel Structures: Behaviour, Strength and Design held in Trento, Italy, 29-31 May 1995. The workshop brought together the world's foremost experts in steel connections research, development, fabrication and design. The scope of the papers reflects state-of-the-art issues in all areas of endeavour, and manages to bring together the needs of researchers as well as designers and fabricators. Topics of particular importance include connections for composite (steel-concrete) structures, evaluation methods and reliability issues for semi-rigid connections and frames, and the impact of extreme loading events such as those imposed by major earthquakes. The book highlights novel methods and applications in the field and ensures that designers and other members of the construction industry gain access to the new results and procedures.

(Cont.) With regard to the physical components of connections, an overview of types of fasteners and joints will be presented, including types and methods of installing bolts and welds, shop-welded, field-bolted column trees, and comparisons between these options. A final section presents options for connections between hollow structural sections of both circular and rectangular cross sections. Finally, the topics covered for connections will be applied to the design project for the MIT class 1.562 as part of the MEng program in high performance structures.

A statistical sampling of U.S. fallout shelters was made with respect to such selected items as the year of construction, type of structural frame, number of stories, floor area, and general construction characteristics. Equations were selected and developed by which the stresses in various steel connection elements may be computed. Connections were examined in accordance with the classifications of simple, semirigid, and rigid. A computer analysis was made of a "typical" ten-story frame building. Sensitivity analyses were made by comparing a range of peak overpressures and the maximum ductility ratios prepared for selected frames.

This dissertation presents the results of experimental and computational investigations on the behavior of steel simple beam end framing connections subjected to fire. While significant progress has been made in understanding the overall structural response of steel buildings subject to fire, the behavior of connections under fire conditions is not well understood. Connections are critical elements for maintaining the integrity of a structure during a fire. Fire can cause large force and deformation demands on connections during both the heating and cooling stages, while reducing connection strength and stiffness. Of particular importance are simple beam end framing connections. These are the most common type of connection found in steel buildings and are used at beam-to-girder and girder-to-column connections in the gravity load resisting system of a building. This dissertation focuses on one particular type of beam end connection: the single plate connection, also known as a shear tab vii connection. This connection is very commonly used in U.S. building construction practice. In this study, material properties of ASTM A992 structural steel at elevated temperatures up to 900°C were investigated by steady state tension coupon tests. Experimental studies on the connection subassemblies at elevated temperatures were conducted to understand and characterize the connection strength and deformation capacities, and to validate predictions of connection capacity developed by computational and design models. In the computational studies, a three-dimensional finite element connection model was developed incorporating contact, geometric and material nonlinearity temperature dependent material properties. The accuracy and limitations of this model were evaluated by comparison with experimental data developed in this research as well as data available in the literature. The computational studies investigated the typical behavior of the connection during heating and cooling phases of fires as well as the connection force and deformation demands. The finite element model was further used to study and understand the effects of several key building design parameters and connection details. Based on the test and analysis results, some important finding and conclusions are drawn, and future work for simple shear connection performance in fire are discussed.