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The structure design

2018-10-09 来源: 51due教员组 类别: 更多范文

下面为大家整理一篇优秀的assignment代写范文- The structure design,供大家参考学习,这篇论文讨论了结构设计。结构设计是建筑设计工作非常重要的一部分,是对所要进行建筑物的表达,是建筑工程过程的重要关节,关乎整体建筑大局。受制于建筑设计的结构设计,往往是出现在建筑设计之后的。虽然结构设计会对建筑设计产生一定的影响,但其影响绝不能是破坏性的。

structure design,结构设计,assignment代写,paper代写,美国作业代写

The so-called structural design is an integral part of architectural design work, an expression of the buildings to be constructed, an important joint in the process of architectural engineering, and relates to the overall situation of the building. Structural design, which is subject to architectural design, usually comes after architectural design. Although structural design can have certain influence on architectural design, its influence can not be destructive. China's architectural structure design has been adhering to the principles of convenient construction, aesthetics, application, economy and safety. With limited space, limited time, rational use of resources, to achieve both economic and aesthetic goals.

The design of architectural structure is systematic, which requires the relevant technical personnel to have a rigorous work attitude and sufficient theoretical foundation. The architectural structure design mainly consists of three stages: structural plan design, structural calculation and construction drawing design. In the process of building design, technicians should survey the building to be constructed, analyze its importance, and determine the structure form of the building according to its height and number of floors, seismic fortification intensity and type of the construction area. Then, technicians determine the load-bearing system and the load-bearing components according to the corresponding characteristics and requirements. When the building under construction is slope roof, there are two ways to deal with it: folding plate type and beam plate type. Related technical personnel can make local large sample detailed drawing based on the detailed drawing previously, or directly draw large sample detailed drawing based on the architectural detailed drawing.

The structure design has the strict standardization, therefore the structure design has its special function request. Reliability is the primary concern of technical personnel. That is to say, the designed building should meet the requirements of durability, applicability and safety in accordance with the specified conditions and the duration of use. Of course, the more reliability is required, the more money is needed. Therefore, technicians need to survey and analyze to find a balance between economic and structural reliability. In addition, this balance point is affected by various factors, such as working life, repair and maintenance, economic strength, etc., so technicians should accurately analyze the engineering situation, whether it is important or not, fully consider the needs of owners, and constantly improve the reliability and economic rationality of the structure. Safety is a secondary consideration for technicians. The structural design should ensure the firmness of the whole, fully consider whether each connection of each component is strong, check whether each component is safe, in order to guarantee the safety of the building structure; While considering reliability and safety, technicians should also consider the adaptability of the structure, such as (f = [f]). Adaptability refers to that under normal conditions, the structure should not undergo vibration and deformation beyond the normal range of application, and its working performance can still be maintained; Finally, the structural design should also consider the durability of the structure, that is, the stiffness and bearing capacity of the structure will not be reduced under the influence of external factors, which poses a threat to the safety of the structure.

Depending on the importance of the building, the structure is divided into three classes: first, those with serious damage, second, industrial and civil, and third, secondary. But it is well known that in most cases, technicians may fail the structure design. Due to uncertain actual structure, the possibility of failure of structural design is also quite different. Therefore, technicians often choose the probability method to measure the reliability of the structure.

The Pf = P > R (S)

In general, the reliability of the structure can be measured by failure probability. The smaller the reliability of the structure, the higher the failure probability. Otherwise, the failure probability of the structure will be lower. If the Pf is greater than a certain value set by the technician, the technician may decide that the structure is not reliable and may fail and should be redesigned. In China, the base period of structural design is often set as 50 years. Of course, it does not mean that the structure designed by technicians is bound to fail after 50 years, but only increases the possibility of failure. In China, technicians take corresponding measures and techniques to improve the reliability of the important engineering structures. For the general engineering structure with ductile failure, B =3.7 and B =3.2 for the reliable index are selected. The study of relevant data makes the designed structure more secure and reliable.

However, under the influence of external factors as well as technical personnel's own factors, some problems in structural design engineering are often ignored, resulting in more investment of funds and the decline of building quality. Problems in structural design mainly focus on the height of bearing column section, constructional column, foundation and foundation, floor slab, cantilever beam and so on.

In the process of designing the height of the bearing column section, technicians analyze the force of the structure under the limitation of the beauty and size of the building, often artificially reduce the height of the bearing column section and calculate the axial compression. However, this practice tends to lead to horizontal cracks, as smaller column cross-section reinforcement cannot withstand high forces. This will have a negative impact on the security and reliability of the building, building in the due time and conditions to play its due value.

When designing the frame structure, technicians need to clarify the problem that the horizontal and vertical frames are equally important. However, some technicians only focus on the design of horizontal frames. The lack of attention to the longitudinal frame seriously affects the whole structure design, which makes the column node, hoop bar and longitudinal bar cannot reach the configuration requirement of the whole frame. In addition, some technicians ignore the role of vertical earthquake, which will have adverse effects on the beams and columns that play an important role in the seismic action of the frame structure, leading to insufficient allocation of the support negative reinforcement, hoop reinforcement and longitudinal reinforcement. Therefore, technicians should adopt a greatly increased design method for stirrup and longitudinal reinforcement on the premise of analyzing the space effect.

The floor slab bears the important task of bearing load in the whole construction project. If the floor slab design fails to reach the standard, it will inevitably affect the normal use of walls, columns, beams and other aspects, and it will have an adverse impact on the safety performance of the whole building. For example, in the design process of the floor slab of civil buildings, some technicians often mistakenly attached the total load of the partition wall to the total area of the plate, resulting in insufficient bearing capacity of reinforcing bars, resulting in cracks on the floor slab of the partition area.

At present, many technicians carry out blind construction without carrying out geological survey and analysis, which cannot guarantee the safety of foundation and foundation. Some technicians do not pay attention to the thickness and width of the soil changing cushion when dealing with the soft foundation. In the long run, technicians are neither scientific, economic nor safe. In addition, in the process of structural design, constructional columns can not be used as load-bearing columns. However, nowadays, technicians often use constructional columns instead of load-bearing columns, which greatly reduces the restraint effect of constructional columns on walls and greatly reduces the seismic and load-bearing capacity of buildings. If an earthquake occurs, the consequences will be unimaginable.

Therefore, in the process of structural design, technical personnel should be comprehensive consideration, reasonable design, follow the requirements of the economic and reasonable, strictly follow the relevant technology and measures, not only by their own experience to carry on the design and construction, with a reasonable scientific method to test the ground base and foundation, insist on value of engineering data collection, analysis, storage, keep to provide important basis for structure design.

With the development of economy, the progress of society and the application of new building materials, China has gained a lot of experience and progress in structural design. Beijing exhibition center complex building, for example, the structure design of the exhibition center strict contrast analysis were conducted for the relevant staff, and from the other side of the vertical earthquake function, also taking into account the influence of temperature on the structure, adopting the flexible and rigid floor assumption, the seismic design, the strict calculation under the strong influence of elastic-plastic deformation problems, greatly improve the reliability and safety of the project.

To sum up, architectural structural design is not a simple thing, which is comprehensive and systematic. Serious work attitude and innovative thinking and methods are required to be combined with relevant theoretical norms. The structural design specifications have higher requirements for technicians in design calculation, reinforcement structure and structural seismic, which greatly increase the difficulty of structural design. Therefore, technicians should fully consider the requirements of regulations and norms, and do not have to be eager to complete the design once and for all. They should cooperate closely with other majors, keep a rigorous attitude, and repeatedly summarize the experience in structural design, so that the architectural design in China can meet the requirements of both economic and reasonable.

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