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A platform for research: civil engineering, architecture and urbanism
Quality control method for post-tensioned prestressed beam construction
The invention provides a quality control method for post-tensioned prestressed beam construction. The quality control method comprises the following steps that 1, the grouting cement mix proportion is optimized; step 2, carrying out secondary slurry supplementing; in order to guarantee the stability of the secondary slurry supplementing pipe, the air cylinder drives the telescopic adjusting rod to move, angle adjustment of the telescopic adjusting rod is achieved, then the stable supporting groove supports the secondary slurry supplementing pipe to improve the stability, in the slurry supplementing process, the forward and reverse rotation motor still drives the slurry supplementing barrel to swing back and forth at a small angle, and swing type feeding is achieved. Due to the fact that a gap exists between the stable supporting groove and the secondary grout supplementing pipe, the stability of the secondary grout supplementing pipe cannot be affected in the swinging process, and in this way, it is guaranteed that the gap can be completely filled with materials in the grouting hole. And 3, pump starting tensioning is carried out strictly according to the calculated oil pressure gauge reading in the prestress tensioning process. The method has the advantages that the method is scientific and reasonable, the structure of the prestressed beam is timely improved, and the grouting rate is increased; and the construction qualification rate is ensured.
本发明提供后张法预应力梁施工的质量控制方法，包括以下步骤：步骤1：优化灌浆水泥配合比；步骤2：进行二次补浆；为了保证二次补浆管的稳定性，气缸带动伸缩调节杆运动，实现伸缩调节杆的角度调节，然后稳定托槽将二次补浆管托住提高稳定性，在补浆的过程中，正反转电机依旧带动补浆筒小角度来回摆动，实现摆动式送料，由于稳定托槽与二次补浆管之间存在间隙，所以摆动的过程不会影响二次补浆管的稳定性，这样做是为了保证灌浆孔内的料能够间隙完全被填满。步骤3：在预应力张拉过程中严格按照计算的油压表读数进行开泵张拉。本发明的有益效果：科学合理，及时提高预应力梁的结构，提高灌浆率；保证施工合格率。
Quality control method for post-tensioned prestressed beam construction
The invention provides a quality control method for post-tensioned prestressed beam construction. The quality control method comprises the following steps that 1, the grouting cement mix proportion is optimized; step 2, carrying out secondary slurry supplementing; in order to guarantee the stability of the secondary slurry supplementing pipe, the air cylinder drives the telescopic adjusting rod to move, angle adjustment of the telescopic adjusting rod is achieved, then the stable supporting groove supports the secondary slurry supplementing pipe to improve the stability, in the slurry supplementing process, the forward and reverse rotation motor still drives the slurry supplementing barrel to swing back and forth at a small angle, and swing type feeding is achieved. Due to the fact that a gap exists between the stable supporting groove and the secondary grout supplementing pipe, the stability of the secondary grout supplementing pipe cannot be affected in the swinging process, and in this way, it is guaranteed that the gap can be completely filled with materials in the grouting hole. And 3, pump starting tensioning is carried out strictly according to the calculated oil pressure gauge reading in the prestress tensioning process. The method has the advantages that the method is scientific and reasonable, the structure of the prestressed beam is timely improved, and the grouting rate is increased; and the construction qualification rate is ensured.
本发明提供后张法预应力梁施工的质量控制方法，包括以下步骤：步骤1：优化灌浆水泥配合比；步骤2：进行二次补浆；为了保证二次补浆管的稳定性，气缸带动伸缩调节杆运动，实现伸缩调节杆的角度调节，然后稳定托槽将二次补浆管托住提高稳定性，在补浆的过程中，正反转电机依旧带动补浆筒小角度来回摆动，实现摆动式送料，由于稳定托槽与二次补浆管之间存在间隙，所以摆动的过程不会影响二次补浆管的稳定性，这样做是为了保证灌浆孔内的料能够间隙完全被填满。步骤3：在预应力张拉过程中严格按照计算的油压表读数进行开泵张拉。本发明的有益效果：科学合理，及时提高预应力梁的结构，提高灌浆率；保证施工合格率。
Quality control method for post-tensioned prestressed beam construction
后张法预应力梁施工的质量控制方法
HUA RUXIANG (author) / DAI LEI (author) / CHEN LIN (author) / LIU CHENGGANG (author) / ZHOU YUJUN (author) / GE HAODONG (author) / WU DENGKOU (author) / LIU YOUCHENG (author) / HE DEPING (author) / LIU FENGNAN (author)
2022-12-23
Patent
Electronic Resource
Chinese
IPC:
E04G
SCAFFOLDING
,
Baugerüste
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