É inegável a importância do desenvolvimento de tecnologias de uso racional da madeira e de solução de problemas de transportes em nossas cidades, principalmente por causa do processo crescente de urbanização do mundo. Existe também, a necessidade estética de se unir à alta tecnologia, o belo. As passarelas estaiadas com tabuleiro de madeira laminada protendida, em módulos curvos, atendem a todas estas exigências. A construção de um protótipo permitiu que a realização de ensaios estáticos e dinâmicos, cujos resultados evidenciaram a viabilidade técnica e econômica de passarelas estaiadas usando madeira de reflorestamento, de tabuleiros compostos apenas por placas de madeira laminada protendida e da construção de placas curvas de madeira laminada protendida. Também foi possível comprovar que as vibrações induzidas por pedestres são a condição mais crítica de projeto. A investigação da perda de curvatura do tabuleiro demonstrou o sucesso do projeto, embora mais estudos ao longo do tempo sejam necessários. Baseando-se nos resultados experimentais, realizou-se a calibração do modelo numérico, que permitiu realizar simulações para determinar quais variáveis definem a resposta da passarela construída. Sugestões de procedimentos de elaboração e construção de passarelas, assim como de criação de norma brasileira específica para pontes e passarelas de madeira, são apresentadas. / The ongoing, worldwide, large scale urbanization is stressing more and more the importance of developing new technologies concerned with the rational use of timber and with the solution of transportation problems in cities. There is also an aesthetical need of showing the melting of up-to-date high technology with beauty. The cable-stayed stress laminated timber footbridge, with curved modules meets all these needs. The buildings of a prototype, enable static and dynamic tests to be carried out. The experimental results revealed the technical and economical feasibility of the following items: a) cable stayed footbridges with timber from reforestation, b) decks only made of stress laminated timber, c) curved plates of stress laminated timber. It also revealed that the human induced vibrations leads to the most critical design condition. The loss of deck curvature study indicated the need of further research considering the time effect, to confirm the initial sucess achieved. Based on the results of these testings, the calibration of the numerical model was done. In order to investigate which variables are responsible for the footbridge response, several simulations were performed with the calibrated model. Guidelines for design and building of timber footbridges are presented. The creation of a brazilian code for timber bridges and footbridges is also suggested.

É inegável a importância do desenvolvimento de tecnologias de uso racional da madeira e de solução de problemas de transportes em nossas cidades, principalmente por causa do processo crescente de urbanização do mundo. Existe também, a necessidade estética de se unir à alta tecnologia, o belo. As passarelas estaiadas com tabuleiro de madeira laminada protendida, em módulos curvos, atendem a todas estas exigências. A construção de um protótipo permitiu que a realização de ensaios estáticos e dinâmicos, cujos resultados evidenciaram a viabilidade técnica e econômica de passarelas estaiadas usando madeira de reflorestamento, de tabuleiros compostos apenas por placas de madeira laminada protendida e da construção de placas curvas de madeira laminada protendida. Também foi possível comprovar que as vibrações induzidas por pedestres são a condição mais crítica de projeto. A investigação da perda de curvatura do tabuleiro demonstrou o sucesso do projeto, embora mais estudos ao longo do tempo sejam necessários. Baseando-se nos resultados experimentais, realizou-se a calibração do modelo numérico, que permitiu realizar simulações para determinar quais variáveis definem a resposta da passarela construída. Sugestões de procedimentos de elaboração e construção de passarelas, assim como de criação de norma brasileira específica para pontes e passarelas de madeira, são apresentadas. / The ongoing, worldwide, large scale urbanization is stressing more and more the importance of developing new technologies concerned with the rational use of timber and with the solution of transportation problems in cities. There is also an aesthetical need of showing the melting of up-to-date high technology with beauty. The cable-stayed stress laminated timber footbridge, with curved modules meets all these needs. The buildings of a prototype, enable static and dynamic tests to be carried out. The experimental results revealed the technical and economical feasibility of the following items: a) cable stayed footbridges with timber from reforestation, b) decks only made of stress laminated timber, c) curved plates of stress laminated timber. It also revealed that the human induced vibrations leads to the most critical design condition. The loss of deck curvature study indicated the need of further research considering the time effect, to confirm the initial sucess achieved. Based on the results of these testings, the calibration of the numerical model was done. In order to investigate which variables are responsible for the footbridge response, several simulations were performed with the calibrated model. Guidelines for design and building of timber footbridges are presented. The creation of a brazilian code for timber bridges and footbridges is also suggested.

Master’s thesis „Behavioral studies of the timber footbridges structures“ deals with static models of timber footbridges. This thesis mainly consists of the behavioral study of historical timber footbridge in the village of Černvír in Vysočina. Based on the actual design of the bridge a three-dimensional beam model was created. This thesis also includes two contemporary alternatives of timber covered bridges. The individual structural elements were assessed according to the applicable standards. To analyze the model FEM program SCIA Engineer 2012 was used.

The Diploma thesis deals with design and static assessment of timber footbridge structural system for pedestrians and cyclist across the Trebuvka river in Lostice on the site of the existing footbridge. Structural system is designed in two alternatives and assessed according to the current standards. Spans of the bridge are 2x18 m and 1x6 m. The main beams are made of glued laminated timber, other parts of the structure are made of timber and steel elements. First alternative is designed as a simple half-through truss beam, second alternative as continuous beam with variable height where the deck is sitting on top of the girders.