| Since the reform and opening up, China's economy got breakneck development. The construction business also has been improved greatly, and the building was built higher and higher. The number of the tall building is growing in all kinds of metropolis. Even the building size has become more and more big. They built a lot of leisure, entertainment, shopping, office in one of the mansion properties of buildings which increasingly satisfy the people's complex intendance demand. Building structure is so complicated. Sometimes structural design needs some large accurate calculation software to complete. The structural plan plays an important way to the architectural stress, construction security and economic index. Structure design is the most important step.Choosing the type of main structure is a comprehensive analysis of the process. It should take the architectural features, height, size and location of loads into consideration, which need the help of the experienced engineer, strong theoretical foundation, and the most suitable calculation software. The height of 56 meters, Chief Project A, seismic codes allow the measures taken to strengthen the frame structure, under the circumstances, the use of space frame structure with a relatively transparent, more flexible partition the advantages of flat, but there is also the framework of frame lateral stiffness smaller defects. If the height is too high, lateral deformation of the larger can only increase the cross-section columns and beams to solve, while the reinforcement of structural members is also relatively large. The height of A can also be used as necessary wall structure on the basis of the framework, appropriate increase in some shear walls to resist lateral load, as much lateral stiffness of shear walls, columns and beams to reduce the cross-section and reinforcement, but also the formation of two seismic system is conducive to the safety of the structure, but the wall of the building division and the use of plane, bringing a number of constraints, the construction units generally do not want to decorate shear wall, so what structure, there must be sufficient theoretical basis, so as to better service, to everyone's satisfaction. After a series of analysis and calculation, the shear wall is the best choice.In today's rapid development of science and technology, building materials and construction methods have been greatly improved. A variety of basic forms and basic construction methods are used in the design. The variation of site soil is based on diversity, resulting in ever-changing selection basis. The more layers of this project, the larger column spacing, single column under the load more than eleven thousand cattle, high capacity form the basis of need. While this project adjacent to the Yong Chun River, soil elevation changes in the distribution of large loads in order to ensure a larger capacity, while speeding up the construction speed manual digging the early selection of high strength concrete piles and prestressed concrete pipe. Both comparison with other forms can meet the requirements of high capacity, supporting layer in the mudstone circumstances, and also can give full play to the pile strength. At the same time the basis of comparison of two, there are also shortcomings of their own. Hand-dug piles need to precipitation, while the site is surrounded by the river. Precipitation can be studied to meet the requirements. In condition that the strum becomes large, it will result in a lot of cut pile and tremendous waste of the foundation. It is difficult to control the construction of pile embedded depth, to the pile of the great difficulty of the construction site. For construction speed, because the prestressed concrete pipe without precipitation, prestressed concrete pipe is better than hand-dug pile. Finally, the greatest concern in the construction unit is the cost. The cost of hand-dug piles is low, after considering the use of hand-dug pile.Finally the project is part of the auxiliary. The water used in engineering and construction of concrete structure is the perfect combination of both the structure of water by the force of some coagulation is facing outside the building, which the strength of concrete and construction of very high demand. As the project faced concrete used in larger, location has changed greatly.he uneven distribution of water concrete slab will affect the overall force structure, while the bare concrete exposed directly, will the formation of many cold bridge, are likely to cause concrete to crack under temperature changes,. The design of plain concrete under different location, using different treatment methods to ensure that water can be applied to concrete to the project and meet the requirements. As the large height difference before and after the project, so that part is below the surface deformation joint, which not only can meet the water needs of underground movement joint, but also to meet the needs of architectural distortion and ensure that the force of exterior wall, designed by prominent node to meet those requirements. |