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(上海市政工程設(shè)計研究總院 (集團) 有限公司, 上海 200092)
摘要: 公軌共建結(jié)構(gòu)體系是一種復(fù)合型交通模式,有利于節(jié)約城市的土地和構(gòu)建合理的城市空間資源. 公軌共建高架車站作為典型的交通建筑,同時承受汽車和列車的振動荷載. 以溫州市域鐵路 S2 線的人民路站為例,研究車輛-車站結(jié)構(gòu)系統(tǒng)的耦合振動分析. 先假定汽車荷載為連續(xù)的移動荷載,忽略軌道不平順的因素,研究汽車荷載對列車運行的影響;然后考慮軌道不平順因素,單列車及雙列車越行通過車站,忽略上部汽車荷載的影響,研究列車-車站結(jié)構(gòu)系統(tǒng)的振動響應(yīng);最后對汽車-列車-車站結(jié)構(gòu)的整體系統(tǒng)進行耦合振動分析,研究汽車及列車分別以不同的速度通過車站時系統(tǒng)的響應(yīng),依據(jù)規(guī)范采用平穩(wěn)性指標(biāo)評價乘客對列車運行平穩(wěn)性的感知程度. 研究結(jié)果表明,各工況下列車運行的平穩(wěn)性指標(biāo)均小于規(guī)范規(guī)定限值,總體評價為優(yōu)秀.
關(guān)鍵詞: 公軌共建車站; 汽車-列車-車站結(jié)構(gòu)耦合系統(tǒng); 軌道不平順; 動力響應(yīng); 平穩(wěn)性指標(biāo)
中圖分類號:TU375. 4 文獻標(biāo)志碼:A 文章編號:1002-848X(2023)03-0127-06
DOI:10. 19701 / j. jzjg. 20201171
Analysis on vehicle-bridge coupling vibration of highway and rail transit co-construction station
LÜ Shangwen
(Shanghai Municipal Engineering Design Institute (Group) Co. , Ltd. , Shanghai 200092, China)
Abstract: Highway and rail transit co-construction system is a type of compound transportation mode, which is conducive tosaving urban land and building reasonable urban space resources. As a typical compound traffic building, highway and railtransit co-construction station bears the vibration load of vehicles and trains at the same time. Taking Renmin Road Stationof S2 line of Wenzhou City railway as an example, the coupling vibration analysis of the vehicle-train station structuresystem was studied. Firstly, the vehicle load was assumed to be a continuous moving load, and the factors of trackirregularity were ignored to study the influence of vehicle load on train operation. In addition, considering the factors oftrack irregularity, single train and double train passing through the station, ignoring the influence of the upper vehicle load,the vibration response of the vehicle-train station structure system was studied. Finally, the coupling vibration of the wholesystem of the vehicle-train-station structure was analyzed to study the response of the system when the vehicles and trainspass through the station at different speeds respectively. The smoothness index was adopted to evaluate the degree ofpassengers′ perception of the smoothness of the train according to the standard. The results show that the smoothness indexof train operation under each working condition is less than the limit value stipulated by the code, and the overall evaluationis excellent.
Keywords: highway and rail transit co-construction station; vehicle-train-station interaction structure system; trackirregularity; dynamic response; smoothness index
第一作者:呂尚文,碩士,高級工程師,一級注冊結(jié)構(gòu)工程師,注冊土木工程師(巖土),主要從事軌道交通結(jié)構(gòu)設(shè)計,Email:lvshangwen@ smedi. com.
[引用本文] 呂尚文. 公軌共建高架車站車橋耦合振動分析[ J]. 建筑結(jié)構(gòu),2023,53(3):127-132. LÜ Shangwen.Analysis on vehicle-bridge coupling vibration of highway and rail transit co-construction station[ J]. Building Structure,2023,53(3):127-132.
