Key points and practice of construction quality control of super long volume concrete beam
超长大体积混凝土梁施工质量控制要点和实践

摘要

超长大体积混凝土梁施工中，温度收缩应力一直是影响工程质量的核心因素。针对此类构件截面尺寸大、钢筋密集等施工难点，本文结合具体工程实践，系统阐述从施工准备到温控养护的全过程质量管控要点。文章结果表明，依托严格控制混凝土原材料品质、优化配合比设计等措施，配合信息化温控监测与科学养护，可有效控制大体积混凝土梁的温度收缩裂缝，保证结构承载能力，为同类工程提供参考。

Abstract

In the construction of ultra-large volume concrete beams, temperature shrinkage stress has always been the core factor affecting the quality of the project. In view of the construction difficulties such as large cross-sectional dimensions and dense steel bars, this paper systematically expounds the key points of quality control in the whole process from construction preparation to temperature control and maintenance, based on specific engineering practice. The results of the article show that by relying on measures such as strictly controlling the quality of concrete raw materials and optimizing the mixing ratio design, combined with information-based temperature control monitoring and scientific maintenance, it is possible to effectively control the temperature shrinkage cracks of large-volume concrete beams, ensure the structural bearing capacity, and provide reference for similar projects.