Structure that is designed to meet the needs of
In highly urbanized undertaken today, the community on the construction of the engineering design of a higher demand, and structural engineering design as an integral part of the engineering design play a significant influence victory or defeat. Therefore, optimizing the structure design, conduct advanced accounting theory, enhance the application of accounting machines, accelerate research and application of new building materials, so that the construction of structural design safer for the economy is a priority. Issues concerning structural aspects of construction, this reporter interviewed the construction of Shandong University Planning and Design Institute to build a sixth branch president, National Register-level structure engineer Mr. Qin Wei, in order to understand the construction of structural design all its aspects.
What are the basic principles of structural design?
First, to meet the functional needs. The functional requirements are many, the most important needs that are safe reliability. Under normal conditions of construction and use, able to withstand a variety of roles, and may be rendered after the accident occurred, such as showing the earthquake, still adhere to the required overall stability. To complete the "construction for seismic design," the level of seismic fortification three objectives, namely "minor earthquake, moderate earthquake repair, earthquake does not fall." Furthermore, functional requirements include suitability and durability, under normal use and normal maintenance conditions, with good performance, the use of impact does not occur if excessive deflection or amplitude, the crack does not occur too wide. Has sufficient durability, it can be applied to the use of predetermined design life, can be applied to such Residence 50 years can not be weathered concrete, corrosion, rusting steel can. The second is the rational structure of the economy. The third is to facilitate the construction, even if all aspects of programs are doing very well, but the construction is very difficult, it will also have a great impact on the economy.
As a structural engineer, how to treat those "body" of special construction?
For those grotesque construction, the Party needs a certain economic foundation, if such a use in residential construction on the desirable. For example, the CCTV building, nest big project like this, there is definitely a large consortium funded project or country, even in the technical aspects of the research units have support, the economy also has reliable sources, in such a precondition is possible completion of construction of the landmark.
If this construction allows you to do the structural design, how do you do it?
First, to ensure its security, then it's reasonable to think and economy.
How rationality embodied?
Mainly in these areas: The first is to determine the structure of the program, followed by the establishment of model selection and accounting accounting software, there is a reasonable choice that construction materials. To achieve the reasonableness of these areas, the demand for construction engineers and structural engineers work closely with, the construction division to seek results, engineers constructed to be safe and reliable, just needs to achieve the effect of the construction division, using what is constructed in the form of the general condition of the construction Teachers are not consultants. For example, some high-rise buildings can also be constructed with a steel reinforced concrete structure, which according to the specific needs of engineers to build body condition, using functions, analyze the pros and cons of two tectonic system, choose a relatively reasonable solution. Encounter complex construction engineers in the construction phase of the program to help teachers, without prejudice to the status of the construction material texture appearance, along the completed structure is conducive to creative thinking. If those conditions encountered when irreconcilable, engineers will give employers the pros and cons and the construction division clear, just not the kind of "castles in the air" type of construction is completed, structural engineers still will strive to fulfill the intent of the construction division, in unreasonable to seek a relatively reasonable.
Reasonableness of the construction structure contains what?
First rationality rationality force structure, system. From the point of view of the mechanical structure of speaking, in fact, there may be some CCTV building irrational factors from structural sense, constructed to meet on the basis of its appearance as far as possible and reasonable. Construction program in the same shape as far as possible on the basis of reasonable mechanical concepts clearer, more reasonable way to transfer power. The second is the use of reasonable functional, can not be said in order to complete the construction of the exterior while ignoring the use of functions built. Third, its economy is still to think about, although the construction side regardless of the cost may be, but the same structure, a structural engineer as to think it is still the economy, the economy actually included in the scope of rationality .
When dealing with large-span space structure probably pay attention to what issues?
The construction of the first large-span to think about choosing the system, what kind of structural form. Second, pay attention to its own structural stability of component design, the amount of deformation that is strictly controlled deflection, to avoid affecting the use of its features, especially comfort. Because the construction of a large amount of deformation, in which the activities of staff may feel shaking, there will be discomfort. In addition, a reasonable settlement construction elements, because it is large-span construction, so the height of the construction element itself will be great, as far as possible to avoid the use of component placement unreasonably affect the function.
Structural engineer in the selection of construction materials when they are thinking what issues?
Currently, there is no structure in the professional building materials too selectively, domestic steel is relatively expensive, the basic material is reinforced concrete structure dominated. Select the steel structure construction is on schedule often there is a demand, since the construction of the steel structure construction faster. The second is the construction of a large space that may be selected Foshan Steel, such as grid, truss, reticulated shell structure, membrane structure, these constructed with steel structure complete some relatively good. But steel construction also has its own problems, the first is its maintenance cost is relatively high, because it is easy to rust. Construction at the time of delivery of the use, the use of demand will be given to the design phase of the owners, but the use is in accordance with the needs of property owners to do stage, it is difficult to ensure. If the owners can not use on-demand, then it may affect the use of life built. In addition, the demand for fire protection of steel structures will be higher, in the event of fire, steel structure construction may be unstable.
Currently, the construction materials industry is still the bottleneck undertaken. If the accounting software and materials can have good conduct, then the structural design will be a great promotion. In fact the current national demand for steel has increased, the Ministry of Construction also vigorously promote the use of high-strength steel and concrete, which to some extent also in order to complete the energy-saving targets.
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