On the construction of mass concrete high-rise building technical analysis

1、Unit31,On the construction of mass concrete high-rise building technical analysis,Text,As a high-rise building structural system in a very important part of one large volume concrete construction has been the entire construction process is the most important key, therefore, to ensure that the work of mass concrete high-rise building construction quality, the need for mass concrete high-rise building construction technology research. Given this, this paper introduces mass concrete high-rise build

2、ing construction characteristics and requirements, and focus on the mass concrete construction technology and other related content. A high-rise building structure analysis of the characteristics of mass concrete. Compared with ordinary concrete structure, mass concrete with the following aspects of the characteristics: First, the relatively large size and relatively thick block.Second is required for continuous pouring of concrete structures is relatively large, and its structural integrity for

3、 requirements are relatively high, compared with ordinary concrete, the massive concrete hydration heat will lead to higher internal temperature of the concrete.Third, if the concrete is thicker than 1.5m, you must set the horizontal layered construction to be considered in order to better reduce the heat of hydration of mass concrete structure on the adverse effects.,Text,Four terms of the structure for the high-rise building its massive concrete structures are usually buried underground, mainl

4、y for infrastructure, and thus its ambient temperature changes suffered a relatively small impact, but in terms of performance for the impermeability requirements are relatively high, so high-level architecture mass concrete construction process, we must focus on the impact of heat of hydration considered and concrete structures from water and other issues related to the analysis of two high-rise building structure mass concrete construction requirements analysis for high-rise buildings. A high-

5、rise building structure analysis of the requirements of mass concrete. Its base form is usually inseparable from the large volume concrete floor or cap, so large concrete structures for high-rise buildings in terms of great significance. conduct high-rise building of the actual construction process, as a result of large concrete structures taken during the processing of the processing methods vary, and therefore often need to fully consider all possible scenarios and problems for large volume co

6、ncrete,countries also varied requirements, our country in terms of concrete high-rise buildings, as specified in the relevant industry standard big concrete between the,Text,interior and the surface temperature difference, and an external surface with no temperature difference between the environment can be more than 25 . High-rise building mass concrete construction technology analysis (1) Material control technology A material control technology for mass concrete high-rise building material co

7、ntrol technology.Which should primarily attention to the following aspects: First, to ensure the quality of materials, and second, pay attention to control the temperature of concrete for mass concrete in terms of quality of materials, pre-construction must first effective mixing of concrete, in order to ensure that the different intensity construction can meet their requirements for the column, it should be possible to reduce the cement concrete, the amount of gray water, while increasing the a

8、mount of stone, fly ash and the admixture with the ratio to be adjusted to better control the concrete strength of concrete temperature control run, we should pay attention to the watering process for gravel medicine to ensure appropriate temperature, while ensuring good ventilation, so be realized effectively avoid cracks in concrete situations.,Text,(2) Pouring technique technology Pouring concrete pouring technique technology has always been essential to the process of construction works is o

9、ne of the key links, for concrete pouring technology, its important to note the type and pouring pouring cubic capacity and other issues. Conduct casting The process must strictly abide by pouring sequence, according to the core tube walls, columns, beams, plates were pouring concrete for construction for wall placement should be maintained to ensure its thickness 5cm, 45cm and height remained at best, for pouring interval should try to keep it within the 2h for column pouring process should be

10、carried out in terms of steel wire mesh settings. carry beams and slabs of concrete pouring should pay attention to take the same slope, until after the Second raft solidification times pouring, pouring part to ensure the quality. (3) Temperature measurement techniques Temperature measurement techniques concrete temperature measurement technique is to ensure that the quality of mass concrete is one of the important techniques, to control the temperature of the concrete floor can effectively prev

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