Diploma thesis describes the design and assessment of the roof structure that covers the courtyard of office buildings. Structure has a regular floor plan and roof height is 15,0 m. The material if the structure is steel S355, bolts 8.8., steel of the pins is S355. Construction is located in Brno. Two options were produced and designed, evaluated according to the latest standards.

The collapse of the I-35W Bridge in Minneapolis, MN on August 1, 2007 brought into question the design and inspection of gusset plates in steel truss bridges. The experimental tests performed in this research study the sway-buckling strength and behavior of large-scale steel gusset plates in an isolated truss connection. Parameters studied include plate thickness,combination member loading, initial out-of-plane imperfection, diagonal compression member out-of-plane flexural stiffness, corrosion, and alternative retrofits to increase lateral stiffness. The flexural stiffness of the diagonal compression member and retrofit designs were unique to the testing program. The variables monitored during testing include gusset plate surface stresses and strains, member axial strains, out-of-plane displacement of the gusset plate free edge, and buckling capacity. The results were compared with previously established design models for predicting buckling capacity of gusset plates which include the Whitmore effective width, the Modified-Thornton method, and the FHWA Load Rating Guidelines. A parametric finite element model was developed to determine the lateral stiffness of the gusset plate connection and the additional stiffness provided by the alternative retrofit options. The results showed interaction between the diagonal compression member and gusset plate occurs, which affects sway-buckling capacity. Combination of member loads showed evidence of detrimental effects on sway-buckling capacity. Corrosion of the gusset plates along the top edge of the bottom chord did not lead to significant reduction in sway-buckling capacity. The two retrofit designs showed increases in both lateral stiffness and buckling capacity as well as economic benefits over traditional retrofit methods. Comparison of the results to the current design guidelines showed that the current methods are conservative and do not accurately represent the true behavior of gusset plate connections. The research concludes with two proposed models for future use in design and retrofit of gusset plates. The first is a member-gusset plate interaction model based on a stepped column analogy that takes into account the effects of member flexural stiffness and gusset plate stiffness. The second is a general design guideline developed for retrofit of gusset plate connections dominated by sway-buckling behavior which uses a stiffness based approach to increase the capacity of gusset plate connections. / Graduation date: 2012

The diploma thesis deals with the design and assessment of the steel construction of the car showroom in Jihlava. The ground dimensions of the structure are 40,0 x 52,0 m and the height at the highest point is 13,14 m. The supporting structure consists of a truss girder consisting of a set of arches, outer columns and an inner column with a strut. This is a freebase system, the distance of the bindings is 4.0 m. In the framework of the work is elaborated the comparison of two variants, more suitable includes the static calculation of the main supporting parts, including the joints and details. The main construction material is steel, grade S 355.

The assignment of my degree work was a proposal of two variants of the steel structure of a modern art exhibition hall. The ground plan dimensions of the structure are 52,5 x 24 m. The whole structure of the two variants is supported by two quadrilateral truss columns and the upper floor level is at a height of 8 m above the ground. The ceiling structure is set by the truss girders. The proposal of two alternative solutions and the assessment of the main structure support elements forms another part of the work. With a winning option then a solution of the selected details, working out of the detailed drawings of the solved joints and the creation of the workshop documentation of the selected parts is supposed.

Object of this master thesis is the static verification and variant desing of roof structure of winter sport stadium in Jihlava city. The ground plan dimensions are 60 x 84 m The current structure is composite of truss main girders with parabolic lower chords, and purlins. Axial distances of main girders are 12m. Concrete columns are a support to main girders. The variant desing of roof uses truss girders and truss purlins. They are supported on existing concrete columns. All load bearing members of existing and new design structure have been evaluated according to actual normative rules. The static assessment of the existing structure is not satisfied from viewpoint of ultimate and serviceability limit states (in some elements). The static assessment of the new structure is satisfied from the viewpoint of both limit states.

The thesis deals with the design and assessment of the steel structure of the roof of the train station. This structure is located in Brno. The plan shape of the structure is rectangular. In the transverse direction, the structure is designed as an arch of 150 m length and the distance of transverse ties is 20 m. At the highest point, the rise of the arch is 30 m. In the longitudinal direction, the structure is 200 m long. In this paper, three variants of the structure are compared.

The subject of this diploma thesis is desigh and assessment of steel structure industrial building. This hall has two bays. The width of the main bay is 30 metres, the width of the second bay is 15 metres. The length of building is 90 metres. Load-bearing system is created of three fixed columns with pin-supported truss beams between. Construction of roof is designed as truss purlin system. There is a bridge crane of 32 tons capacity. The building is situated in area of Uherské Hradiště.

Diploma thesis contains a design of steel load-bearing structure of a hangar placed in Brno-Medlánky. The ground dimensions are 40.0×44.0 m, the height of the building is 10.0 m. Two preliminary variants of the design solution were processed; main difference is the shape of the truss girder. Both variants were assessed for a combination of seventeen load cases. The comparison of the variants led to the selection of the final variant, which was assessed in detail. The girder truss in this variant is an arched truss, the height of the truss is 1.5 m, the individual elements are made of square hollow sections. A detailed static calculation was performed including the calculation of joints, drawing documentation and technical report. The main construction material is S235JR steel.

The subject of this thesis was to develop a conversion and a variant of the existing steel structure roofing ice rink in Třinec. The building has a rectangular plan on pages 90 m x 60 m, minimum headroom inside the building is given with regard to the requirements of operation. The roof structure is stored in steel and concrete columns around the perimeter at a distance of 7.5 m. Variant solution for the design of new steel roof structure was chosen arc grate. The design consists of 13 main arc lattice girders in the transverse direction for a distance of 7.5 m in the longitudinal direction of the structure consisting of planar lattice strips (girders) and purlins. All this is complemented by a reinforced system. Two dimensions are retained.

This thesis focuses on the field performance of IsoTruss®-reinforced concrete beam columns for use in driven piles. Experimental investigation included one instrumented carbon/epoxy IsoTruss®-reinforced concrete pile (IRC pile) and one instrumented steel-reinforced concrete pile (SRC pile) which were driven into a clay profile at a test site. These two piles, each 30 ft (9 m) in length and 14 in (36 cm) in diameter, were quasi-statically loaded laterally until failure. Behavior was predicted using three different methods: 1) a commercial finite difference-based computer program called Lpile; 2) a Winkler foundation model; and, 3) a simple analysis based on fundamental mechanics of materials principles. Both Lpile and Winkler foundation model predictions concluded that the IRC pile should hold approximately twice the load of the SRC pile. Applying mechanics of materials principles found the predicted stiffness of the piles to be consistent with the laboratory results. Due to unresolveable errors, experimental field test data for the SRC pile is inconclusive. However, analysis predictions in conjunction with field test data for the IRC pile show that the IRC pile should perform similar to predictions and laboratory test results. Therefore, IsoTruss® grid-structures are a suitable alternative to steel as reinforcement in driven piles.