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(中國(guó)鐵路設(shè)計(jì)集團(tuán)有限公司， 天津 300308)

［摘要］雄安站地面夾層設(shè)置了一個(gè)回字形交通連廊，該交通連廊采用鋼結(jié)構(gòu)吊橋形式吊掛于承軌層下，吊橋結(jié)構(gòu)舒適度分析是其設(shè)計(jì)重點(diǎn)之一。首先將不同的步頻、步幅單人行走激勵(lì)疊加得到人群行走激勵(lì)，以此來(lái)計(jì)算交通連廊在人群行走激勵(lì)下的加速度響應(yīng)。然后建立車橋耦合振動(dòng)模型，進(jìn)行上部列車振動(dòng)及人行激勵(lì)同時(shí)作用下的交通連廊舒適度分析，從加速度云圖、加速度時(shí)程曲線、典型頻譜曲線等幾方面對(duì)計(jì)算結(jié)果進(jìn)行分析。結(jié)果表明，該交通連廊舒適度滿足要求。 

［關(guān)鍵詞］雄安站；吊掛；連廊；振動(dòng)響應(yīng)；舒適度分析 

中圖分類號(hào)：TU391 文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2021)24-0039-05

Comfort analysis of suspended traffic corridor in Xiong’an Railway Station 

YU  Jungang 

(China Railway Design Corporation, Tianjin 300308， China) 

Abstract: A circular traffic corridor is set up on the mezzanine floor of Xiong’an Railway Station, and the traffic corridor is suspended under the rail bearing layer by using steel structure suspension bridge structure form. The comfort analysis of suspension bridge structure is one of the key points in its design. Firstly, different step frequency and stride length were superimposed to obtain the crowd walking excitation, and the acceleration response of the traffic corridor under the crowd walking excitation was calculated. Then, the vehicle-bridge coupled vibration model was established, and the comfort analysis of the traffic corridor under the simultaneous action of the upper train vibration and pedestrian excitation was carried out. The calculation results were analyzed from the acceleration cloud diagram, acceleration time history curve and typical spectrum curve and else. The results show that the comfort of the traffic corridor meets the requirement.

Keywords:Xiong’an Railway Station; hanging; corridor; vibration response; comfort analysis

*中國(guó)鐵路設(shè)計(jì)集團(tuán)有限公司重點(diǎn)課題：時(shí)速200km及以上的“房橋合一”結(jié)構(gòu)體系及關(guān)鍵技術(shù)研究（2021A240702）。

 作者簡(jiǎn)介：于軍港，碩士，工程師，Email:yujungang@crdc.com。