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Characterization of Sealants and Adhesives Behaviour as Fulfillments of Cracks in Wood
Laciková, Petra ; Běťák, Adam
The primary aim of this research is to assess the durability of available adhesives and sealants, intended for rehabilitating oversized cracks in wood structures. Spruce wood was used as filling material to prepare surface-glued samples. The highest compressive shear strength values were observed for reference samples (without exposure stress) bonded with adhesives. The achieved shear strength values for the epoxy and polyurethane adhesives were 80% higher than for the sealants. The adhesion failure was visually assessed. The effect of the filler on the tensile properties was assessed for the epoxy adhesive.
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Projekt dřevostavby rodinného domu rámové konstrukce
Běťák, Adam
The bachelor work aims at a design of a family bungalow by means of a timber frame construction. The objective of the work is to prepare documentation for the building permit. The work has two parts - a drawing and a textual part. The drawing part contains drawings for the building permit including technical reports and air conditioning drawing with a relevant technical report. The project documentation includes a calculation of the house´s heat loss and a calculation of the energy performance of the building including an energy performance certificate along with 3D visualisations of the house. The textual part theoretically describes the currently used systems of supporting structures for timber houses, materials used for timber houses and ways of their use. The second part deals with the designed timber frame house itself. The individual designed structures of construction in contact with the exterior are assessed in terms of the requirements for thermal protection of buildings. Basic construction details are presented in the conclusion.
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Návrh nízkoenergetického rodinného domu
Běťák, Adam
The diploma thesis deals with the design of a low energy house in two structural variants, namely wooden frame construction and massive brick construction. The object is designed on a specific plot with two above-ground floors. The house meets the requirements of a three-member family. Both objects will be compared in terms of energy intensity and energy prices. The thesis is divided into two parts. In the first part of the thesis there is a description of how the basic wooden constructions are divided. There are also basic characteristics of some wooden frame structures and solid brick structures made of lime sand bricks, including their positive and negative properties. Basic energy balance and categorization of buildings in terms of energy intensity follows, including descriptions of the individual categories. The second part of the thesis deals with the design of the wooden structure itself. The text part contains the accompanying and the summarizing technical reports to the designed object. The perimeter structures of the wooden structure and the perimeter structures of the massive brick structure in contact with the exterior are assessed in terms of thermal technical requirements for the perimeter shells. At the end of the work the timber and brick structure are compared in terms of heat losses and energy demands. In addition, the individual alternatives for heating and water heating are compared in terms of fuel consumption costs and price comparability of 1 m2 of perimeter structures of brickwork and wooden structures. The drawing part contains a study of frame wood and brick structures. The building permit documentation is prepared for the wooden building. Part of the project documentation is calculation of heat losses, energy performance certificate, calculation of the energy intensity of the building, energy label of the building envelope and 3D visualization of the proposed building.
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Projekt dřevostavby rodinného domu rámové konstrukce
Běťák, Adam
The bachelor work aims at a design of a family bungalow by means of a timber frame construction. The objective of the work is to prepare documentation for the building permit. The work has two parts - a drawing and a textual part. The drawing part contains drawings for the building permit including technical reports and air conditioning drawing with a relevant technical report. The project documentation includes a calculation of the house´s heat loss and a calculation of the energy performance of the building including an energy performance certificate along with 3D visualisations of the house. The textual part theoretically describes the currently used systems of supporting structures for timber houses, materials used for timber houses and ways of their use. The second part deals with the designed timber frame house itself. The individual designed structures of construction in contact with the exterior are assessed in terms of the requirements for thermal protection of buildings. Basic construction details are presented in the conclusion.
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