Baigiamajame magistro darbe pateiktos pagrindinės prielaidos, kurios priimamos analizuojant klijų kontaktą tarp medienos ir metalo. Aptartos plačiausiai taikomos plieninių sriegtų strypų įklijavimo medienoje technologijos. Apibendrinti plieninių sriegtų strypų įklijavimo medienoje technologijos kontrolės metodai. Išanalizuota mokslinė literatūra, susijusi su plieninių sriegtų strypų įklijavimu medienoje. Tiriamojoje dalyje surasti ir išnagrinėti Pasaulinės patentų sistemos „esp@cenet“ 11 patentų, kuriuose pateikiami montažiniai medienos elementų mazgai, sukonstruoti panaudojant plieninius įklijuojamus strypus. Pateikti pagrindiniai standžių montuojamųjų mazgų konstravimo principai. Eksperimentinėje dalyje laboratoriniais bandymais ištirta sąveika tarp medienos ir plieninio sriegto strypo, kai kontaktas tarp jų užtikrinamas klijais. Atlikti eksperimentiniai tyrimai: plieninių sriegtų strypų takumo bei stiprumo įtempių nustatymas; medienos tankio ir drėgnio nustatymas; plieninių sriegtų strypų ištraukiamojo atspario nustatymas. Aptarti pagrindiniai gamybos netikslumai, kurie turi įtakos jungties elgsenai ir laikomajai galiai. Išanalizuota pavienio plieninio strypo, įklijuoto medienoje, gniuždomojo ir tempiamojo atspario skaičiavimo metodika, pateikiama projektavimo normose STR ir Eurokode 5. Bandymų rezultatai palyginti su teorinėmis išraiškomis, pateikiamomis projektavimo normose. Remiantis eksperimentinių bandymų rezultatais ir ankstesnių autorių tyrimų... [toliau žr. visą tekstą] / In this master degree thesis submitted general assumtions which are being adopted while analysis of glued joint between timber and steel. Discussed the main technologies of glueing in steel rod into timber. Summarized technolgy control methods of glueing in steel rods process. Overviewed the scientific literature which is related to the steel rods glued in timber. In research part of the work submitted 11 patents of esp@cenet patent base of rigid joints in which construction used glued in steel rods. Given the main principles of construction of rigid joints with glued in steel rods. In experimental part of the work investigated the behavior of the timber – steel joint which contact is ensured by glue. Experimental studies were done: yield and strength stress determination of threaded steel rods; determination tests of timber moisture content and density; determination of tensile carrying capacity of threaded steel rod glued in glulam. Reported production inaccuracies and its influence on joint‘s behavior and final carrying capacity. The results are compared with theoretical expressions provided by the design rules. Based on the experimental results of the test and study reports of previous authors, submitted proposals for design rules of the addition of comments. Structure: introduction, the concept of the matter, literature review, experimental studies, conclusions and suggestions, references. Thesis consist of: 100 p. text without appendixes, 64 pictures, 20 tables, 43... [to full text]

Large span timber trusses are usually built with glulam. One problem with large span glulam trusses is that the connections needed to transfer the load between truss members are often complex and expensive. Another issue is transportation. Building large span trusses out of structural timber instead, could be a way of simplifying the connections and at the same time increase the degree of on-site construction and thereby solving the transportation problem.In this study, a total of 18 laboratory tests were performed with the purpose of investigating the tensile strength and the load slip behavior of different connection designs for large span structural timber trusses. Six different test groups corresponding to six different connection designs were tested. The materials used include members made of C24 timber and gusset plates made of birch plywood, aluminum, and steel. Screws were used as fasteners for five test groups and adhesive was used for one group. The influence of different reinforcement techniques including reinforcement screws and added aluminum sheets was studied.The results showed a ductile failure behavior for all test groups except for the group where adhesive was used. However, a decrease of ductility was observed for groups were aluminum sheets were used on the outsides of the mid placed plywood gusset plate. A 12-17 % increase in capacity was observed due to the presence of aluminum sheets. The reinforcement screws had no significant effect on the capacity. However, the presence of reinforcement screws did lead to a reduction in scatter both regarding capacity and stiffness.

The work deals with the design of a load-bearing wooden structure of a mountain hotel in the foothills of the Jeseníky Mountains. It is a building without cellar, two floors and a attic room. The floor plan of the building is 17 x 30 m with a porch of 3 x 10 m. Height of the building up to the ridge is 13.2 m. The design of the roof structure has been chosen from 2 different variants. Material usage consist of grown wood of class C24, glued laminated wood of class GL32h and steel S355. Static analysis was calculated by Dlubal RFEM software.

The master's thesis deals with design and static assessment of loadbearing structure the timber viewtower on the hill Hostyn. The shape of the structure is very close oblate spheroid. Towers plan shape is a regular octagon whose outer diameter varies along the height. Tower in the footing and in the top measure 10,5 meters, at mid-height measure 6.5 meters. The height of the viewtower is 35 meters and view floor is located at a height of 30.5 meters. The main structure of tower consists outer towers curved wooden columns and interior steel column. Columns support the horizontal beams and bracing provide rigidity of the structure. The roof has a pyramid shape towers and tends to 17 °. Outer columns are designed from glued laminated wood GL24h, others carrying wooden beam are designed from solid timber C24 steel rods are designed from steel S235. Connections are solved using steel components. The work includes structural calculation, technical report and drawings.