Spelling suggestions: "subject:"preload"" "subject:"preloading""
1 |
The Analysis of a Column Splice with Long Open Slotted HolesPiniarski, Sławomir January 2014 (has links)
A steel frame structure of a few storey building is considered in European project FRAMEUP. Each column of the building is constructed from steel profiles connected by column-to-column connection, called column splice. In FRAMEUP project new type of column splice connection is designed to facilitate assembly. This connection consists of a plate, called finger plate with characteristic shape of holes, called long open slotted holes. A column splice with long open holes is a type of friction connection, where finger plate transfer load between bottom of one column and top of a second part and preloaded bolts are used to clamp segments together. In this work, the behaviour of the connection is investigated. Moreover, general information about column splices, friction connection and loss of pretension are introduced in literature review. A recommendations, for the preloaded bolts are investigated in accordance with European standard EN 1993-1-8. An experimental static compression tests are performed in order to observe the real behaviour of the column splice with long open slotted holes. Several number of numerical tests are performed to predict behaviour of the connection by use of Abaqus software. The Numerical model is validated against experimental results. Further tests are performed in order to check an influence of other important factors on the behaviour of connection system. An influence of connection geometry i.e. filler plate thickness, characteristic of the surface and the material properties are analyzed. The variation of bolt forces as well as slip factor and reduction factor ks are investigated. Finally, experimental test and finite element method analysis are discussed and conclusion are given. / <p>Validerat; 20140913 (global_studentproject_submitter)</p>
|
2 |
Stanice technické kontroly / Technical inspection stationSmolík, Jindřich January 2013 (has links)
This thesis deals with a new building technical control station, office space and hotel. The building is situated on three floors, on the first floor we find technical inspection station and office premises manual technical lines. On the second floor there are offices. On the third there is a hotel. The building is designed by a rectangular shape with a flat roof and on the third floor there is a trafficable terrace. The supporting structure consists masonry Porotherm and reinforced concrete system columns, which is found only on the first floor. The supporting structure of tensioned ceiling consists of prestressed beams ceilings Spiroll a concrete slab. External surface finish on the first floor is made up of silicate plaster paste and the remaining two floors are made of ventilated facades. Utility room is located on the first floor, from where a chimney Schiedel is build. Most of the floor space in the building are made of a carpet or tiles, only in the service line is epoxy coating
|
Page generated in 0.0261 seconds