(1中國建筑設計研究院有限公司， 北京 100044，2 中國鐵路設計集團有限公司，天津 300308)

［摘要］雄安站站房建筑造型新穎，屋蓋面積巨大。結合建筑方案特點，高架候車廳與站臺雨棚的屋蓋均采用單層正交結構體系，結構布置與建筑功能高度契合。針對結構的特點與高抗震設防烈度要求，提出根據構件部位與受力特點分段確定抗震構造措施的方法，有效減小結構用鋼量。通過分析軸壓比、徑厚比與長細比對鋼管柱變形性能的影響，對支承雨棚的鋼柱屈服變形角與極限變形角進行適當放松。將等厚箱形柱改為上部壁厚小、下部壁厚大的變階形式，構件外形尺寸保持不變，在抗側剛度相等的條件下，節約鋼材的效果較好。提出一種腹板帶加勁肋的薄壁箱形梁，通過在腹板設置縱向槽形加勁肋、橫向加勁肋以及綴板的方式,保證構件具有較高的穩定承載力，便于加工制作與現場安裝。研發的屋面與連橋的連接方式，在保證結構豎向承載能力的同時，可以有效適應相鄰結構之間的大位移。罕遇地震作用下動力彈塑性時程分析和防連續倒塌分析結果表明，結構滿足“大震不倒”的性能目標，個別構件失效不會引發結構連續倒塌。 

［關鍵詞］雄安站；大跨鋼結構；板件寬厚比；帶肋箱形鋼梁；雙向滑動支座 

中圖分類號：TU312，U292 文獻標識碼：A文章編號：1002-848X(2021)24-0001-12

Design and research of large-span steel structure for Xiong’an Railway Station 

FAN  Zhong1,  ZHANG  Yu1,  ZHU  Dan1,  LIU  Tao1,  XIE  Peng1,  FAN  Zeyuan1,  LIU  Ming2,  SONG  Zhiwen2 

(1 China Architecture Design & Research Group, Beijing 100044， China；2 China Railway Design Corporation, Tianjin 300308，China) 

Abstract: Xiong’an Railway Station has a novel architectural modeling and a huge roof area. Combined with the characteristics of the architectural scheme, the single-story orthogonal structure system is adopted for the roofs of the elevated waiting hall and platform canopies. The structural arrangement is highly consistent with the building function. According to the characteristics of structure and the requirements of high fortification intensity, the method of determining the aseismic structural measures by sections by the component position and stress characteristics was proposed, which can effectively reduce the steel consumption of structure. By investigating the influence of axial compression ratio, diameter thickness ratio and slenderness ratio on the deformation performance of steel tubular columns, the yield deformation angle and ultimate deformation angle of canopies were relaxed appropriately. The equal thickness box column is changed into the variable step form with small upper wall thickness and large lower wall thickness, and the dimension of the columns component remain unchanged. Under the condition of equal lateral stiffness, the effect of variable form column on saving steel is better. Thin-walled box beam with stiffeners was proposed. By setting longitudinal channel stiffeners, transverse stiffeners and batten plates in the web, the member has a high stable bearing capacity, which is convenient for processing and field installation. The connection shapes of the roof and the bridge can effectively adapt to the large displacement between adjacent structures while ensuring the vertical bearing capacity of the structure. The results of dynamic elasto-plastic time-history analysis under rare earthquake and prevention of progressive collapse analysis show that the structure meets the performance goal of “no collapsing under strong earthquake”, and individual component failure will not lead to progressive collapse. 

Keywords:Xiong’an Railway Station； large-span steel structure； plate width-thickness ratio； thinwalled box beam with stiffener； bidirectional sliding bearing

 作者簡介：范重，博士，教授級高級工程師，全國工程勘察設計大師，一級注冊結構工程師，Email:fanz@cadg.cn； 通信作者：張宇，碩士，工程師，Email:zhangy130@cadg.cn。