铁路工程简支T梁不同运架方式施工工艺及经济性比选

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中图分类号：U445 文献标志码：A 文章编号:1003-5168（2025)13-0085-04

DOI:10.19968/j.cnki.hnkj.1003-5168.2025.13.017

Comparison of Construction Techniques and Economic Efficiency Among Different Transport and Erection Methods for Simply Supported T-beams in Railway Engineering

WEN Qi

(Zhengzhou Design Institute, China Railway Engineering Consulting Group Co.,Ltd., Zhengzhou 450001, China)

Abstract: [Purposes] This paper aims to evaluate the selection of different transport and erection methods for simply supported concrete T-beams in railway engineering,with the objectives of maximizing resource utilization effciency,optimizing construction process sequencing,and ultimately improve the overall performance of railway construction projects.[Methods] The differences between railway and highway methods for transporting and erecting simply-supported T-beams are thoroughly analyzed using methods such as literature review，field investigation and dataanalysis.[Findings] Through computationalanalysis,itis found that475km is thecritical thresholdof transport distance.When thetransport distance exceeds 475km，railway transportation is more cost-effective,while highway transportation is more economical for distances less than 475 km.[Conclusions] The selection of the railway simply supported T-beam transportation and erection methods needs to be decided comprehensively according to the transport distance，transportation and erection methods，and equipment conditions.The establishment of the critical transport distance model analysis shows that this method significantly reduces the comprehensive cost and shortens the construction duration，and provides a reusable economic compari

son framework for similar railway engineering

Keywords: simply supported concrete T-beam; railway beam transportation; highway transportation of beams; erection of bridge erecting machine field investigation; data analysis

0 引言

铁路交通的快速发展，对铁路桥梁建设的质量、效率和经济性提出了更高的要求。（剩余6030字）