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施工技术研究
李世华1，2，郑 倩1，2，*，李章建1，2，张旭飞1，2，张家祥1，2
摘 要：为了研究超高性能混凝土（UHPC）钢-混结合段在混合梁斜拉桥中应用的可行性，采用1∶1节段模型进行了试验，研究了UHPC的工作性、力学性能和收缩性能，并对UHPC钢-混结合段的浇筑质量进行了检测。结果表明：UHPC的工作性、力学性能和收缩性能均满足工程相关要求；除了人为设置的脱空区域外，其他区域的UHPC与钢板之间结合紧密，且UHPC的表观质量良好。
Abstract: In order to study the feasibility of applying Ultra-High Performance Concrete (UHPC) steel-concrete joint section in hybrid girder cable-stayed bridge, a 1:1 segment model was used for experiments, and the workability, mechanical properties, and shrinkage performance of UHPC were studied, and the pouring quality of UHPC steel-concrete joint section was tested. The results show that the workability, mechanical properties, and shrinkage performance of UHPC meet the relevant engineering requirements. Except for the manmade void areas, the UHPC in other areas is tightly bonded to the steel plate, and the apparent quality of the UHPC is good.
李世华,郑倩,李章建,等.混合梁斜拉桥UHPC钢-混结合段的性能研究[J].混凝土与水泥制品,2023(7):75-79.
LI S H,ZHENG Q,LI Z J,et al.Study on performance of UHPC steel-concrete joint section of hybrid girder cable-stayed bridge[J].China Concrete and Cement Products,2023(7):75-79.
王云磊1，王俊林2，艾云忠2，崔建滨2
摘 要：以浙江某高校图书馆“红、黄、灰、白”四色同体的现浇装饰清水混凝土工程为研究对象，总结了适用于现浇彩色装饰清水混凝土建筑的施工技术，包括抗裂保护体系、钢模板表面喷砂处理工艺、模板二次封闭施工技术、不同色彩清水混凝土界面的拼接技术等，可为现浇彩色装饰清水混凝土的推广应用提供技术支撑。
Abstract: Taking the "red, yellow, gray, white" four-color cast-in-place decorative fair-faced concrete engineering of a university library in Zhejiang as the research object, the construction technologies of cast-in-place colored decorative fair-faced concrete buildings were summarized, including crack resistance protection systems, surface sandblasting treatment of steel formwork, secondary sealing construction technology of formwork, and interface splicing technologies of different colored fair-faced concrete, etc, which can provide technical support for the promotion and application of cast-in-place colored decorative fair-faced concrete.
王云磊,王俊林,艾云忠,等.现浇彩色装饰清水混凝土建筑施工关键技术[J].混凝土与水泥制品,2023(7):80-84.
WANG Y L,WANG J L,AI Y Z,et al.Construction technologies of cast-in-place colored decorative fair-faced concrete buildings[J].China Concrete and Cement Products,2023(7):80-84.