广东公路交通
廣東公路交通
엄동공로교통
GUANGDONG HIGHWAY COMMUNICATIONS
2012年
1期
5-9
,共5页
桥梁%主塔施工%海工混凝土
橋樑%主塔施工%海工混凝土
교량%주탑시공%해공혼응토
bridge%main tower construction,marine concrete
大榭大桥是浙江省宁波市建设中的一座跨海大桥，主塔采用“帆”形钢砼结合塔，高138．291m。该类型主塔施工难度大，可借鉴经验少，中下塔柱及横梁采用C50海工混凝土，抗裂要求高。介绍了工程施工特点和总体施工方案，重点介绍了塔柱及横梁施工、主塔模板设计、劲性骨架安装、海工混凝土防裂等，为同类工程施工提供经验。
大榭大橋是浙江省寧波市建設中的一座跨海大橋，主塔採用“帆”形鋼砼結閤塔，高138．291m。該類型主塔施工難度大，可藉鑒經驗少，中下塔柱及橫樑採用C50海工混凝土，抗裂要求高。介紹瞭工程施工特點和總體施工方案，重點介紹瞭塔柱及橫樑施工、主塔模闆設計、勁性骨架安裝、海工混凝土防裂等，為同類工程施工提供經驗。
대사대교시절강성저파시건설중적일좌과해대교，주탑채용“범”형강동결합탑，고138．291m。해류형주탑시공난도대，가차감경험소，중하탑주급횡량채용C50해공혼응토，항렬요구고。개소료공정시공특점화총체시공방안，중점개소료탑주급횡량시공、주탑모판설계、경성골가안장、해공혼응토방렬등，위동류공정시공제공경험。
Daxie bridge is a cross - sea bridge under construction in Ningbo City of Zhejiang Province, with sail -shape steel concrete combination main tower, which is as high as 138. 291m with high construction difficulties and few references, as C50 marine concrete being adopted for middle/sub - columns and tie beams, which demands high crack resistance. Both the engineering construction characteristics and the overall construction plan have been introduced, with being focused on the construction of tower columns and tie beams, design of main tower formwork, installation of rigid frame and crack resistance for marine concrete, which could provide experi- ence for similar projects construction.
