Walk Through the Eye of a Needle

<p>Pedestrian bridge design is becoming more demanding and challenging as architects and engineers utilize the full measure of design ability available with current design software. This presentation will review the design process for the more unique aspects of this suspension bridge. The presentation will conclude with lessons learned during the design process. Observations from the design of this bridge will form the basis of recommendations for the enhanced design and testing specifications for cable supported bridges.</p>

Analisis pendapatan pekerja sektor informal disekitar objek wisata jembatan pendestrian kawasan objek wisata menara Gentala Arasy Kota Jambi

The purpose of this study was to determine the socio-economic characteristics of traders around the tourist attraction of the pedestrian bridge, to determine the potential and strategies of tourism development, and to determine differences in income from the informal sector. The data used in this study is primary data consisting of interview data. The method used for this research is a field research method with observation techniques and conducting interviews, and distributing questionnaires. The results showed that the variables of age, amount of savings, number of dependents, transportation expenses, and number of tourist visits had a significant effect. However, partially the number of dependents and the number of tourist visits significantly affect the income of informal sector workers around the Pedestrian Bridge Tourism Object in the Gentala Arasy Tower Tourism Object, Jambi City. Keywords: Income, Informal sector workers, Tourist attraction

Grand Avenue Traverse: Uniting Accessibility, Utilities and Economy Into a New Experience

<p>The Grand Avenue Pedestrian Bridge spans 85m from a park and residential neighborhood to a developing waterfront district that is 24m below. The bridge carries sewer, storm, and water utilities over rail lines and a highway while passing under power lines. The bridge’s east landing is on a landslide prone steep slope. On the west the bridge lands on a new concrete stair and elevator tower that rests on soil that is regularly infil- trated with seawater.</p><p>The design concept uses the constraints of the project to create a unique moment that is both utilitarian and unexpected. By sloping the truss to drop 4.8% towards the west, a set of accessible ramps are created on the top, side, and interior of a box-truss style bridge. Traversing 7m of elevation through accessible paths allowed the design team to minimize the height of the elevator and therefore moment into the foundations, critical for a site that is seismically active and located in seawater infiltrated soil.</p><p>Material choices for the bridge and throw barrier were based on considerations of durability and mainte- nance. Weathering steel is used for the primary truss members, painted steel for members located under the deck, and bare aluminum panels with a custom CNC cut perforation form the guardrail and throw barrier. All of the elements come together as a unified experience.</p>

Pedestrian Bridge Application in a Fundamentals of Structural Analysis Course Inside an Architecture Bachelor Program

The paper presents an application of the Problem-Based Learning (PBL) methodology in a structural analysis course taught in English of the third year Architecture bachelor program at Politecnico di Torino (Italy). This experimentation regards a class which is composed mostly of international students, that is, a heterogeneous audience with different background. In general, students struggle with the technical aspects typical of structural analysis course. PBL has been found as a possible solution to this problem in Engineering programs. The aim of redesigning the course is to support students’ learning while evaluating the PBL application in a non-technical context with an international audience. This article describes the structure and the results of the PBL implementation. In particular, the participation has increased compared to the previous academic year in terms of presence during the lectures, interest in the subject, interaction between the lecturer and the students, and exams’ results. These results are encouraging and confirm the validity of the PBL methodology as actually applied.

Performance of a Cold Formed Steel Pedestrian Bridge under Static and Dynamic Loads

This paper summarizes new application of CFS in bridge constructions where a seven meters long pedestrian bridge was constructed. The bridge has 1.2m width, 0.8m depth, and is composed of CFS Warren truss and bondek floor systems. Natural frequency of the bridge considering only dead load application was found as 8.54 Hz and decreased to 7.08 Hz when the live load was included. Under static load test, the application of dead load only and both dead and live loads yielded a maximum deflection of 3.53 and 8.1 mm, respectively. Normal walking and running pedestrian loads were carried out created a maximum acceleration equaled to 0.11g. Lastly, sinusoidal waves application facilitated through a three-phase induction motor having self-weight of 24.86 kgf at frequency equal to 8.5 Hz was performed for one hour resulting no decrease of the natural frequency, thus the bridge can be assumed to experience no noticeable stiffness degradation.

Fatigue Testing of Cables – Issues and Lessons Learned

<p>Pedestrian bridge design is becoming more demanding and challenging as architects create new ways to experience bridges. This is particularly evident in the design of cable supported pedestrian structures.</p><p>Innovative and creative concepts require a higher level of fatigue testing to verify cable systems meet design demands and reach service design life.</p><p>The Scioto River Pedestrian Bridge is one such example of innovative pedestrian bridge design. The structure is a suspension bridge with a non-redundant main cable system. Cable supported pedestrian bridges have demonstrated a proclivity for fatigue issues in the past. To address this concern, refined fatigue testing requirements were developed which were intended to verify that the cable system and manufacturing quality control were fit for the unique structure demands. The lessons learned through the process of design, testing, and construction of the cables on this project are useful tools for teams seeking to successfully deliver future cable supported bridge projects.</p>

Challenges in Procurement, Design and Construction of the Erasmusrand Pedestrian Bridge

<p>The new Erasmusrand Pedestrian bridge replaced the previously severely damaged pedestrian bridge spanning across the National Route N1 highway in Pretoria, South Africa, for the South African National Roads Agency SOC Ltd (SANRAL). The structure consists of a steel arch supporting a composite steel/concrete deck with inclined square hollow steel struts. The bridge spans 73m across a 10-lane dual carriageway freeway providing access to a local school from the suburbs. Several challenges were presented in the project with procurement, design and construction.</p>