High Rise Building Construction Quality Management

High Rise Building Construction Quality Management And Control [Abstract ] City construction, high-rise building has become the main body of the construction to raise the utilization rate of land, but in the process of construction, there is still a large number of security issues, according to the characteristics of high-rise building construction, from the preparation, construction, decoration and other aspects of the construction of the high-rise buildings to be taken by the management method and should be pay attention to the problem, so as to effectively reduce the occurrence of safety accidents, ensure that the high-rise building construction quality. [Key words] tall building; construction quality; management With the rapid development of economy, people on housing and consumption of the increasingly high demand, especially in the city, to the limited land as far as possible to meet more people's needs, high-rise buildings become the way to solve this problem, the large-scale shopping malls, hotels and residential high-rise building construction by way of. The whole structure of high-rise building complex, construction cycle is long, be in safe construction under the premise, the completion of construction, need construction put forward scientific and effective quality management and control of the construction strategy. 1 the characteristics of high-rise building To ensure that the high-rise building construction quality, first under the analysis of the characteristics of high-rise building, generally speaking, the main body of high-rise building a giant scale, usually in the floors above the 9 floor, the 101 floor of the edifice of Taipei as many as 101 layers, high rise building with complex functions, can be used for housing commercial, construction of internal system is also more complex, construction of index is higher, on the construction side of the building a higher level requirements. Building a large scale, high cost. High rise building quality determines to a large extent and construction materials, construction technology and construction period. High-rise building construction area is large, need the construction side of the detailed calculation, the construction cost budget, ensure that the project investment can ensure construction materials quality and construction technology of reliability. Secondly, the high-rise building construction cycle is long, the construction side to co-ordinate the various departments of the construction schedule, formulate scientific and effective construction plan, the construction side of the project investment decision, project investment is large, using high quality materials. Regardless of construction bidders or independent contractor, the early input costs to make budget, to ensure that the project investment can ensure construction quality reliability. Set deep foundation, construction difficult. High-rise buildings due to ground more construction, a construction of larger weight, this year to earthquakes and other natural disasters, solid foundation not only can well support the superstructure, to resist natural disasters have an important role in the foundation, construction, not only to take into account the solid foundation, but also considering the comprehensive utilization problems, modern high-rise buildings will usually set multilayer basement, the basement can be used as a commercial or parking lot. On foundation construction period to make a budget, not only focus on the landmark building construction, foundation construction quality directly affects the whole construction quality. Tall buildings are high, difficult construction technology. High-rise building is characterized by the greatest height is large, the current tallest building in the world for the United Arab Emirates Sheikh Khalifa tower height of 828 meters, the height are constantly challenging project limit, along with the increase of height, wind speed has been enhanced, the temperature is getting lower and lower. Besides the natural factors of architectural style but also affects the construction, to ensure that the building but also resist the influence of natural factors, it increases the difficulty of construction. Operation space limit, construction equipment utilization rate. The high-rise buildings are constructed by means of using vertical, low-rise buildings can be used with the bottom area of the same way is extended, and high-rise buildings is adopted to decrease gradually out of the way to build, this can guarantee the larger work area. In order to ensure the feasibility of building construction, construction materials transport is relatively complex, need to use the vertical lift or lifting equipment transport, compared with ground construction, mode of transport is relatively complex, serious influence to the construction progress. Duration time is long, natural climate effect. A large quantity of high-rise building construction, construction cycle is long, construction is subject to seasonal climate effects, change with the seasons, rain and snow on high-rise building construction and personnel safety guarantee to bring certain difficulty. High rise building with complex function, in addition to its own to meet the architectural function, inside the building and installation of power system, air conditioning system, drainage system, these complex systems are mutually staggered, need construction method with good design and organization ability, can the system of practical and effective together. 2 construction preparatory measures 2.1 geological engineering monitoring Construction method to construction sites in the actual inspection, on the local address to conduct survey sampling, to ensure that the acquired address parameters are, through to the local geological detection to determine the local bedrock aquifer thickness, depth, thickness of soil layer, these parameters on the foundation of high-rise building construction has important reference value. Some construction side of the address and pay no attention to will cause inestimable loss, the construction side to send professional address survey personnel undertakes survey, thus ensure the engineering parameter accuracy, put an end to resort to deceit, fabricating data. 2.2 construction design scheme The first construction should strictly designed to pass, for high rise building construction are in accordance with the general design scheme, to the overall floor height, small to the interior layout of wire, so construction design scheme is correct or not directly related to the construction quality, construction side if is specified inside, company design department to continuously demonstrate design scheme, make sure design details of each are not problems. Construction design scheme can be employed Architectural Design Institute was developed, which could guarantee the high quality of construction, the construction units should strictly research employed by the design qualification. The overall design plan, should design drawings will be handed over by the construction plan review for construction drawings strict review, when problems should require design departments to carry out rectification, elimination of illegal construction and safety, to ensure strict design reliability. 3 construction materials quality control 3.1 construction of choice of raw materials Construction quality depends largely on the quality of building materials, in a high-rise building and used a lot of cement, steel, sand and other materials, construction Department of materials inspection personnel to strict quality control, to ensure that the use of building materials meet the construction requirements of buildings, put an end to receive red packets using inferior product phenomenon. For the use of raw materials to conduct random testing, do not meet the requirements of the product to put an end to the use, one has to detect important material, reinforced specifications meet the requirements, the structure of concrete mild whether meet the requirements. 3.2 selection of construction equipment The construction schedule but also has an important influence on construction quality, construction enterprises will usually with investors signed a project check time, it will give the construction side some time pressure, if the project time is pressing, the construction side will often cut corners, lower the quality of projects, so the construction side should be appropriate to the efficient use of construction equipment to improve work efficiency, common construction equipment ramming machine, mixer, so as to ensure the construction quality. 4 construction management measures 4.1 control construction survey For the high-rise buildings, to grasp the construction precision is difficult, in construction, there is often a shift or deviation of the phenomenon, to ensure that the building overall height, length and width of meet the requirements, should accomplish 3 line control, ensure the verticality, and elevation axes precise line. Typically the verticality of high-rise building 's column according to the distribution of the buildings, four angle side wall along the vertical layout into a layer to the side wall, and mark, as used in the measurement of verticality of the standard. Axis is usually used with theodolite laser mode access. Elevation line in each layer can be preset four holes for the elevation locating, but due to casting, coating and other causes of benchmark high accuracy, it can be used in multilayer elevation check, use level levelling, in order to ensure the accuracy of the elevation. 4.2 construction of reinforced concrete and the use of During the construction, will use a lot of concrete, to ensure the strength of concrete to meet the requirements, prevent the concrete from discrete is too large, resulting in the low intensity concrete problems, the quality will directly affect the quality of the high-rise building. In addition to concrete, reinforcement of high-rise building support also plays an important influence, steel quality material supervision departments, and for the construction of steel is used in the construction of department for the construction sector, according to the requirements of construction strength of reinforced, do use reinforced place cannot use other materials to replace. 4.3 high-rise building crack treatment Usually the higher strength of concrete in high-rise buildings, is easy to produce cracks, cement thermalization role, will also release a lot of heat, resulting in concrete due to temperature changes, temperature stress and shrinkage stress, tend to produce crack phenomenon. Crack is not only make the building appearance affected, but also on the whole building durability influence. In order to avoid cracks, can be selection of low heat cement, minimize the use of large volume concrete, at the same time can doping amount of retarder thereby reducing cracks. 5 construction of personnel management Construction quality of the high-rise building construction quality to have the very big impact, in construction, the construction of a responsible person to assign the task, make corresponding task index, index check on a regular basis, ensure time limit for a project schedule. The construction of personnel management is more important, first of all to ensure that construction personnel command, according to the construction design construction. Second, the construction personnel have a certain professional standards, be able to understand the design of independent operation. Again the need for the construction personnel should have a strong sense of professionalism, in accordance with the expected to complete the construction task, hex, work absenteeism phenomenon. In short, the modern high-rise building construction, to take reasonable and scientific quality management and control of the construction, budget, construction, management, construction and should always pay attention to the problems affecting the quality of construction, the construction in all the details for unified management and control, to ensure the construction quality. Reference. [1 ] Zhou Jianping. In high-rise building construction control points [J]. Building materials and decoration . 2007 ( 8): 194-195. [2 ] umbrella of Tao, Gao Yulong. High-rise building construction quality control measures [J]. Heilongjiang science and technology information, 2010 ( 17): 241 [3 ] Yan Zhen, king sea week. High-rise building construction quality control measures of China [J]. New technology and new products . 2010 ( 6): 175 [4 ] Xu Peng. High-rise building construction quality management measures [J]. Modern property . 2010 ( 1): 38-39.