某特种工程结构翻模施工技术研究

Research on Turning Formwork in Chimney Construction

摘要:

依托上海某再生能源综合利用中心建设工程，围绕特种工程结构施工技术优化，系统对比了爬模、滑模和翻模3种施工方法。在综合考虑造价、经济效益比和技术人员配置等因素后，研究表明翻模技术更具综合优势。结合工程特点，对翻模施工的钢制模板进行了规范化设计，施工过程中对结构垂直度、沉降位移等关键指标进行监测。结果表明，结构构件在60 d后，沉降位移控制在0.1 mm以内，累计平均沉降位移为0.525 mm；实测混凝土强度换算平均值为44.8 MPa，显著高于构件强度推定值38.6 MPa；中心垂直度偏差55 mm。分析结果表明，结构沉降量、垂直度和混凝土强度均符合规范要求，设计的翻模钢制模板安全可靠，为类似结构工程的施工提供了有益的参考和借鉴。

Abstract:

The construction project of a renewable energy comprehensive utilization center in Shanghai is studied, focusing on the optimization of chimney construction techniques. A systematic comparison was conducted among three common methods—climbing formwork, slip formwork, and turning formwork, taking into account factors such as construction cost, cost-effectiveness, and personnel requirements. The results indicate that turning formwork offers the most balanced and comprehensive advantages. A standardized design was developed for the steel formwork used in the turning process. During construction, key parameters such as structural verticality and settlement displacement were closely monitored. After 60 d, the settlement displacement of the structural elements remained within 0.1 mm, with a cumulative average of 0.525 mm. The measured average concrete strength reached 44.8 MPa, which significantly exceeding the estimated design value of 38.6 MPa. The vertical deviation of the chimney's central axis was recorded at 55 mm. These findings show that the structural settlement, verticality, and concrete strength meet regulatory standards, confirming the safety and reliability. This study provides a useful reference for the construction of similar chimney projects.