Span-height Aspect Ratio of Pre-stressed Reinforced Concrete Track Beams for Straddle Monorail with 1 250 mm Gauge and 25 m Span
Journal Title: Urban Mass Transit - Year 2024, Vol 27, Issue 1
Abstract
[Objective] To adapt to the building characteristics of a new-model straddle monorail train, mechanical performance analysis and interface optimization research are conducted on a new type of PRCTB (pre-stressed reinforced concrete track beam). [Method] A PRCTB suitable for the characteristics of this new-model train is proposed, and an empirically validated numerical analysis model is used to conduct static analysis on eight 25 m-span track beams with different span-height aspect ratios. [Result & Conclusion] The mechanical performance of the proposed new PRCTB meets the regulatory requirements. The 25 m-span new-model track beam exhibits favorable mechanical performance when the span-height aspect ratio ranges from 16∶6 to 18∶5.
Authors and Affiliations
Junwei ZHAO, Yanli SHEN, Peng DU
Keywords
Related Articles
- EP ID EP727707
- DOI 10.16037/j.1007-869x.2024.01.024
- Views 40
- Downloads 0
Stress Characteristics and Design Optimization of Shield Initial Reaction Frame in Confined Space
Objective The size of the reaction frame is strictly constrained in shield tunnel initial operation under limited space environment. In view of this, to ensure the frame can withstand the huge reaction force generated du...
Influence Law of PBA Method New Station Closely Undercrossing Existing Station on Its Structural Deformation
Objective A new station constructed with PBA method closely undercrossing existing station will influence the deformation of the latter′s structure. The influence law needs to be studied. Method Based on the project of P...
Stress and Deformation Analysis of Green Prefabricated Slope Surface Protection Structure for Deep and Large Foundation Pit
Objective Excavation of deep and big foundation pit destroys the equilibrium state of the original stress field in the soil, leading to ground deformation. Foundation pit deformation can be controlled by adopting GRF (gr...
Analysis of Surrounding Rock Deformation in the Expansion Excavation Construction Process of Metro Interval Tunnel with Connecting Passage into Forming New Station
Objective The Cruise Home Port Station on Chongqing Rail Transit Line 9 is constructed from in-situ expansion of the existing interval tunnel (including a connecting passage). Due to the complex geological conditions, th...
Study on Design Parameters of Girder Bridge Span Structure in City Railway
[Objective] The compiling of TB 10624—2020 Urban (Suburban) Railway Design Code follows most of the content of GB 50157—2013 Subway Design Code and TB 10623—2014 Intercity Railway Design Code. In order to verify the reas...