The purpose of this study was to examine the effect of bottom chord extensions on deflections and vibration characteristics of joist supported floor systems when joist bottom chord extensions are installed. To understand the effect of bottom chord extensions on deflections, natural frequency, damping, mode shape and effective mass, extensive analytical and experimental studies were conducted on single span and three span joist supported laboratory footbridges with different bottom chord extension configurations. Finite element computer models were created to simulate and compare the results of stiffness and vibration tests. Testing was done with a) the bottom chord extensions in-place before the concrete was placed, b) with all or part of the bottom chord extensions removed, and c) after the bottom chord extensions had been reinstalled with jacking for the single span footbridge and without jacking for the three-span footbridge. Results from the stiffness tests indicate that re-installing the bottom chord extensions to the joists of the single span footbridge with cured concrete with the center of the span raised helps to reduce the uniform load deflections to some extent, but not as much as placing the bottom chord extensions before the concrete placement. Likewise, for the three span footbridge, placing the bottom chord extensions before the concrete placement is observed to be a better solution. Results from the dynamic tests indicate that the effect of bottom chord extensions on the single span footbridge is consistent for natural frequency, 20 psf live load deflections, sinusoidal excitations with high amplitudes, quarter point heel drop excitations, walking excitations, and effective mass values. The effect of bottom chord extensions on the three span footbridge is consistent for the natural frequency and 20 psf deflections. However, the FRF (Frequency Response Function) peaks of chirp, heel drop, sinusoidal excitations, accelerations from walking data, and the MEScope and Finite Element model effective mass results do not follow a common trend. It can be concluded that even though the footbridge was stiffened by the bottom chord extensions, that does not necessarily mean that the acceleration levels, and hence the frequency response function peaks, decrease. However, bottom chord extensions do increase the natural frequencies for all the three governing bending modes. / Ph. D.

The diploma thesis deals with the structural assessment of the existing reinforced concrete frame structure of the production building. The structure under consideration is carried out as a reinforced concrete monolithic frame structure with a discrepancy of 6,15 x 6,15 m (axis). The object has a rectangular plan of 13 x 9 fields. The total dimension is 56 x 81m and is divided into three dilation units on all floors by two inserted 3,65 m wide fields. The building has three above-ground floors and one underground floor. The construction height of the basement is 3,675 m, above ground level 4,0 m. On the west side of the building (axis A) are three reinforced concrete elevator shafts with a dimension of approximately 4,5 x 3,8 m. The envelope and inner partitions are made of bricks full of burned. The work shall include a static assessment of the status quo, a determination of the load capacity and a proposal for appropriate adjustments to ensure static reliability.

The subject of the master´s thesis is the design and assessment of the static load-bearing steel structure office building. It is an eight-storey building with a floor plan and dimensions 54x15m. The proposal has three variants. In one of them a steel frame with a hinge attached elements. These are the pillars, beams, trusses, joists and purlins, which are coupled with trapeze plate and thereby secure the stability of the position in the horizontal direction. The steel structure is placed between the reinforced concrete towers.

The aim of the thesis is to design a steel structure of the parking building in the center of Brno. The plan dimensions of the building are 29 x 77.5 m including a missing corner of the dimensions 5 x 12.5 m in the southeast part of the construction. The construction of the parking building has 4 above-ground floors with the same layout and the fifth floor situated only in the middle section of the construction. Each floor is 3.5 m high. The total height of the construction in the place of the roofed part of the fifth floor is 17.5 m, otherwise 14 m. A spatial frame is the main load-bearing part consisting of 7 fields in the longitudinal direction and 5 fields in the transversal direction. The spatial frame is formed of columns and longitudinal and transversal girders. Steel-concrete composite joists are pin-supported among longitudinal girders. The construction of the parking building is solved in three versions considering different placing of columns to the base structure and different placing of longitudinal and transversal girders to the columns. The resulting draft is worked out in details. Roof cladding will be made using sandwich panels and walls will be made out of glass panels. The calculation has been done in Scia Engineer 2014 program and by manual calculation.

The subject of my thesis is the design mountain guesthouse with a wellness centre, which is located in the village of Mala Morávka, at the level of documentation for construction. The new building is located in the cadastre unit Karlov pod Pradědem. This is a two floors, slab-building L-shaped with separate parking for visitors of boarding house and wellness centre. The structural system is composed of ceramic blocks Porotherm and reinforced concrete joist floor. Roof structure is made up of wooden trusses girders saddle shape. Design of mountain guesthouse with wellness centre respects the territorial plan of the village of Malá Morávka.

The aim of diploma thesis is to design a made-up bridge construction over the road network.There were made three studies of bridging which were compared consequently. Two-joint ginder without haunched was selected as the most suitable option and it was designed in details. The construction was assessed according to the ultimate and serviceability limit state.

The subject of diploma project is the design of complex of buildings using hemp lime composite, in English known as Hempcerete. Four detached houses are completed by building of facilities. Buildings have one to three floors. The composite fiercly reduces carbon footprint in building industry. The design is focused on different construction systems using hemp lime composite as a wall filling. Detached houses are made of load bearing timber frame with cast-in-situ hempcrete, building of facilities is made of reinforced concrete with precasted blocks. All buildings are cellarless. Detached houses are shed roofed, building of facilities is gable roofed.

This diploma thesis, called „Parish church, Brno-Líšeň“, is compiled as documentation for building construction. There is one complex building situated in slope. Therefore it consists of one partly underground floor and first floor. It is divided into three sections. Central part is designed as round-shaped body of the church with tower in the southern part of the church. Shed roof has an angle of 7° for body and an angle of 13° for tower. From the western side there is an administrative area connected to the church and from eastern side there is a community area which is supposed to be used as residential premises. Roof of both these parts is constructed as flat vegetative roof. Structural design is systemic, Velox. Foundation construction combines concrete and ferro-concrete belts and footing.

The diploma thesis is aimed for design of load-bearing structures of residental building. The designed parts of building are reinforced concrete two way slab with lintels above 1th floor, reinforced concrete two way cantivelered slab above ground floor, reinforced concrete point-supported slab below ground floor, reinforced concrete columns in basement, reinforced concrete staircase in basement and static check of loadbearing walls in ground floor. The thesis contains static design, which is provided in calculated software RFEM Dlubal 5.07. The result of static design is drawing documentation of these calculated elements.

The diploma thesis processes project documentation in the stage of construction for modernization of an apartment house near the center on the street Vlhká 22 in Brno. The building is divided into four residential floors and nonresidential basement and attic. On the first floor there are two residential units and the other four residential units. The foundation structures are made of solid bricks. The vertical load-bearing and non-load-bearing structures are also made of solid bricks. Exceptionally drywall partitions. In the basement, the ceiling structures are made of brick barrel vaults, above the above-ground floors there are wooden beamed ceilings. The roof structure of the building is made of purlin system with standing stool and covering of ceramic roof tiles. Three additional housing units will be built in the attic. In the basement, the masonry will be undercut by a chain saw, partly by pressure grouting and partly by a new layer with a waterproofing layer. All wood-beamed ceilings will be replaced with prefabricated ceiling beams with aerated concrete inserts without overhead slab. The garden part of the building will be insulated with mineral wool. The roof structure will be constructed from the street side as a shed roof and in the garden part a flat roof with a gradient layer of expanded polystyrene thermal insulation and a waterproofing layer of thermoplastic poleolefin.