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Essay代写:Conceptual design

2017-12-06 | 来源:51due教员组 | 类别:Essay代写范文

下面为大家整理一篇优秀的essay代写范文- Conceptual design,供大家参考学习,这篇论文讨论了概念设计。概念设计是创造性思维的一种体现,也是强化设计理念的一个重要手段。概念设计在建筑结构设计中发挥了良好的促进作用,优化了建筑结构设计的总体性能,并且节省工程造价成本。在将来,概念设计必将成为建筑结构设计的主流导向,并成为一种重要的设计手段。

Conceptual design,概念设计,英国代写,essay代写,论文代写

Conceptual design is an embodiment of creative thinking and an important means to strengthen the design concept. Nowadays the concept design also applies to our country's architecture design, has the new thinking mode to the overall plan and the design of the building structure, strengthens the building safety, the applicability, the reliability, and can save the construction cost of the project to some extent, optimizes the construction plan. In this paper, we combine the concept design with the architectural design in the background of our country's current architecture design, and discuss the application of the concept design in the building structure design concretely.

More and more advanced technology has been applied to architecture design, which creates convenient and comfortable conditions for building structure, and optimizes the design result and improves the quality of design. But over time, the architectural design of the computer and other advanced equipment has produced a strong dependence, the design pattern tends to be fixed, loss of the real meaning and function of the building structure. The data statistics of the construction of the safety and practicability of the building are not accurate, which makes the design of the architectural structure go into the erroneous zone. In order to fully embody the originality of design in the design, we should strengthen the thinking of concept design, break the fixed form of the traditional architectural design, and make the design more contemporary.

The so-called conceptual design generally means that without numerical calculation, in particular, in some problems difficult to make accurate rational analysis or in the norms difficult to specify, according to the overall structure system and the system between the mechanical relations, structure failure mechanism, earthquake damage, experimental phenomena and engineering experience to obtain the basic design principles and design ideas, The overall layout of the building structure and the macroscopic control of the seismic detail measures are determined from the perspective of the whole. By using the method of conceptual approximation, it is possible to conceive, compare and choose the structure system quickly and effectively in the scheme stage of architectural design. The scheme is usually clear and qualitative, and avoids unnecessary tedious operation in the later design stage, and has good economic and reliable performance. At the same time, it is also the main basis to judge the reliability of the computer internal force analysis output data.

Structural conceptual design is a method to guarantee the excellent seismic performance of structures. Conceptual design contains very broad content, the structural scheme and arrangement of aseismic Benefit are chosen, the measures of reducing torsion and strengthening torsional rigidity are designed, the ductility structure and ductility Structural component are analyzed, the weak layer of structure is analysed, and the corresponding measures are taken to avoid the premature damage of weak layers, to prevent the chain effect caused by local failure, and to avoid the , take the line of defense measures and so on. It should be said, from the plan, layout, calculation to component design, construction measures in each design step through the concept of seismic design content.

In the current seismic design, isolation energy dissipation is an important research in conceptual design. The energy dissipation is mainly through the flexible isolation layer and the damping device which is arranged between the main body and the foundation, to reduce the damage caused by earthquakes to buildings at the focal point, and to set up a "reverse pendulum" device at the top of the building to control the displacement of buildings caused by earthquakes and to control the strength of the quake. This concept design, such as reasonable design, in the actual application, to achieve at least 60% seismic effects, improve the building itself seismic performance, strengthen security measures to ensure.

In the seismic design of buildings, we should pay more attention to conceptual design. This is because of the complexity of building structures, when earthquakes occur, the uncertainty of the direction of seismic forces, the limitations and fuzziness of people's understanding of the structural effects of earthquakes, the accuracy of structural seismic analysis calculations, the variability of material properties and construction and installation, and other unpredictable factors make the results of design calculations possible and actual, Even some of the effects have not yet been quantified. Therefore, because of the above uncertainties, the design calculation of building structures cannot cover all possible uncertainties. Therefore, we must pay attention to the whole concept design, in a sense, conceptual design is even more important than analysis and calculation.

The process of conceptual design is based on personal experience, based on the qualitative design process of building functional requirements, structural safety grade, seismic grade, geological data, local materials and local natural environment, the main contents of the conceptual design include: determining three seam setting, structure system, foundation form and depth, and geometrical dimensions of main components. Structural design is the reverse process of conceptual design, and its design is based on the general requirements of conceptual design, mechanics and mathematical principles from quantitative to qualitative process. From this we can see the importance of the concept, but now many of our designers are too theoretical, in any case, the first is the results of the calculation, and ignore the structural structure. Even some of the unit's total work does not participate in the design of the early conceptual design phase, but only to the calculation of the design of the book Audit drawings. Some new comrades at work sometimes argue with reviewers about books and calculations.

In the design of building structure, it is very important to determine the stiffness of buildings rationally. The stiffness of the building is not too large, the stiffness is large, the structure of the natural vibration period is short, in the earthquake, the structure of the seismic force is large, the relative consequences are heavier, and the material waste; stiffness is not too soft, too soft structure in the earthquake will have a large deformation, affecting its strength, stability and normal use.

The failure mechanism of building structure is generally divided into the floor failure mechanism and the whole failure mechanism, and designers should try to avoid the structural damage mechanism in the design, because the failure mechanism shows that there are weak links in the structure, that is, before the bearing capacity of other components has been fully played, the whole structure has been destroyed The responsibility and main task of designers is to achieve the ideal structure of the overall destruction mechanism.

Equal strength and energy dissipation design principle. This is the design principle that must be considered carefully in the overall design of the aseismic structure, must avoid in the structural design because of ill-conceived design, or the partial defect of construction, result in the situation that the main load-bearing structure is destroyed in advance and the whole building continuously destroys under the horizontal action. In the overall design of the structure should pay attention to strengthen weak links, as far as possible, such as intensity, in the attention of the principle of strength design, it is important to pay attention to the structure in the appropriate parts of the performance can consume a lot of energy.

The fundamental purpose of concept design is to consider the overall scheme of the construction structure in the specific architectural space and geographical conditions, and to exert and utilize the mechanical characteristics and relations between the total structure system and the system consciously. Using conceptual design to grasp the performance of the structure, the results of the calculation and analysis can be scientifically judged and reasonable choice.

The building is a complete space structure, and the components work together in a rather complicated way, rather than a separate component independent of the overall structural system. At present, there are some limitations in the whole research of the structure design, so that many assumptions and simplification methods are used in the design process. As a structural engineer, on the one hand in the design process should be strict compliance and implementation of the relevant mandatory norms and requirements, adhere to the principle of structural design can not be changed, on the other hand, should not blindly, dogmatic, mechanically copied copy, especially for the recommendations of the norms and requirements, it should be used as a structural design guidance and reference opinions, This will make the right choice in the actual design project.

The current structural design calculation level is difficult to effectively guarantee the seismic and wind resistance of structural design, especially seismic design. At present, there are still some defects in the current theory of structural design and computational theory: if the design of concrete structure, internal force calculation using elastic theory based on the calculation method, and the section design is based on the plastic theory of the limit state design method, the two contradictions make the calculation results and structure of the actual force state there is a large gap.

Architectural design needs constant innovation, design ideas also need to constantly add fresh elements, to meet the current era of development trends, by better social acclaim. Conceptual design plays a good role in building structure design, optimizes the overall performance of structural design, and saves the cost of engineering cost. In the future, conceptual design will become the mainstream of architectural design, and become an important means of design.

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