Pedestrian bridges are an important component of an active transportation system. As part of digital and green transformation, active travel is recognized as an essential strategy for reducing vehicle fuel consumption and exhaust emissions, but also for improving public health. Pedestrian bridges and other active travel infrastructure must be designed to be accessible to all users. Bridges that do not meet the conditions for comfortable use can force detours that discourage walking and bicycling. Adapting bridges that are not universally accessible requires challenging and expensive construction work. When accessibility issues are considered in the planning and design of new bridges, cost-effective, and often cost-neutral solutions, can be found. Some countries ensure the accessible design of pedestrian bridges through national regulations, but it is important to educate and raise awareness among all bridge designers about the importance of accessible design to achieve sustainable structures. Therefore, this paper provides an overview, comparison and commentary on the most comprehensive current standards, guidelines and manuals for pedestrian bridges that contain information on accessible design. Special attention is given to the design of stairs and ramps as critical elements of bridge accessibility.
1 January 2015 in Tehnicki vjesnik - Technical Gazette
Due to their slenderness, pedestrian bridges may vibrate significantly under pedestrian traffic. Many researches in the past few decades deal with the problem of predicting the vibration response induced by human activity reliably. Most...
29 November 2015 in JOURNAL OF CIVIL ENGINEERING AND MANAGEMENT
A new structural damage estimation procedure using grey relation coefficient and curvature of displacement influence line in beams using sparse measurement is proposed in this paper. The method is based on static structural response which can be obtained using single sensor. determination of damage location as well as determination of corresponding damage severity can be easily calculated with simple arithmetic operations, which is the main advantage of the proposed method. Conducted numerical simulation for different damage scenarios and various measurement sparseness and experimental validation confirm the effectiveness of proposed damage severity estimation procedure.
8 August 2015 in Tehnicki vjesnik - Technical Gazette
In the current European Code EN 1992-1-1 a truss model with variable inclination angle of concrete compressive struts with a quite wide range of inclination angle, from 21,8° to 45°, is intended for use for shear design of reinforced...
1 January 2015 in Journal of Applied Engineering Science
All dynamic pedestrian load models for serviceability control on pedestrian bridges which can be found in Eurocodes (EC) or guides to EC are based on dynamic load model of single pedestrian. Though the model of moving pulsating force is similar to the real character of pedestrian loading (walking along the bridge) the load model based on stationary pulsating force acting at the most adverse position of the bridge deck may be concurrent in bridge design for the reason of simplicity of acceleration assessment. Pulsating force moving along the bridge span do not produce the same dynamic response as a same pulsating stationary force. Therefore, the amplitude of stationary pulsating force have to be factorised by the reduction factor in a way that both load models (stationary and moving) cause the same maximum structural dynamic response. In this paper the structural parameters (structural system, span length, structural frequency and structural damping) affecting the reduction factor in pedestrian load model based on stationary pulsating force are researched. From conducted analyses it can be concluded changes in structural frequency does not affect the reduction factor, while changes in structural damping, structural system and span length affect the reduction factor, i.e. reduction factor is not a constant value as it is defined in load models proposed in some codes or guides. Structures; Reduction factor; Pedestrians; Load modeling; Bridging; Pedestrian Bridge
The effects of wind on beam bridges can be significantly reduced with careful design of deck, roadway and wind barriers, as well as with appropriate design of piers. In this paper, the influence of corner design of rectangular...