Super-long large-span gymnasium laminated slab roof structure alternate warehouse cooperative construction method

By dividing the roof structure of the ultra-long span stadium into independent compartments and using low-heat concrete and temperature-controlled curing, the problems of temperature shrinkage cracks and steel corrosion were solved, achieving a rapid sealing system and seamless structural forming, thus improving construction progress and durability.

CN122446876APending Publication Date: 2026-07-24BEIJING URBAN CONSTR GROUP
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Patent Information

Application Number
CN202610850987.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-06-12
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

In existing technologies, the construction of ultra-long span stadium roof structures presents challenges in controlling temperature shrinkage cracks. Traditional post-cast strip methods affect construction progress and are prone to steel corrosion and leakage. Existing skip-casting methods are difficult to coordinate the tensioning sequence of prestressed beams and splice construction joints in complex roof systems.

Method used

The construction method of skip-construction collaborative construction of the composite slab roof structure of the ultra-long span stadium is adopted. By dividing the structure into multiple independent compartments, the length of a single compartment is controlled to not exceed 41.30m, and the pouring interval between any two adjacent compartments is not less than 7 days. Low heat of hydration concrete is used, combined with continuous pouring by truck pump, multi-point temperature measurement and temperature-controlled curing, to form a seamless overall structure.

Benefits of technology

It enables the rapid formation of a closed system, shortens the construction cycle, avoids steel corrosion and leakage, improves structural durability, solves the problems of joint leakage and uneven stress, and ensures seamless structural forming and safety.

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Abstract

The invention discloses a super-long large-span gymnasium laminated slab roof structure skip collaborative construction method, which comprises the following steps: S1, acquiring structural floor height, beam slab section, laminated slab distribution, prestressed beam position and environment temperature parameters, and based on temperature stress and shrinkage stress calculation, controlling the maximum length of a single bin to be not greater than 41.30 m; s2, dividing the roof structure into a plurality of independent bins by taking the column grids, the main beam lines and the prestressed beam boundaries as boundaries, and controlling the area of each bin to be 880-1300m < 2 >; and S3, the pouring sequence is determined, and it is ensured that the pouring interval time of any adjacent bin cells is not less than 7 d. According to the invention, the post-cast strip is replaced by the skip construction joints, so that the construction optimization of two joints and one joint is realized, the structure can quickly form a closed system in the construction stage, and a long post-cast strip waiting period is thoroughly eliminated, thereby shortening the closing period of the structure by more than 70%, and greatly accelerating the construction rhythm.
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