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After be aimed at an earthquake, the netizen waits for the problem that the respect produces in building safety and aseismatic ability, the deputy courtyard son's eldest son that we covered Anhui to build institute of industrial institute civil engineering is strong, and the Su Jiao of mechanical research respect teachs this school.
1, the attention of aseismatic to the building ability promotes the person that the earthquake of an arise suddenly lets buy a house abruptly. When the reporter is asking Fang Pin to see the person that buy a house is buying a house repeatedly in the path, mention " aseismatic coefficient " and " aseismatic strength " wait for a word, greatly small selling office and business of house property intermediary also discover, is what many person that buy a house blurt out " the aseismatic coefficient of this house how many? " this looks was like poor and common problem to beat indeed many carry out buildings staff member.
Reporter: A lot of person that buy a house speak of now " aseismatic coefficient " when very ambiguous still to this concept, can be Dean Sun mixed specificly the origin that netizens say this coefficient and how appraisal?
Dean Sun: The country monitors a system through the earthquake, the branch that monitor, and geological survey branch constructs according to the geology of each areas the circumstance is summarized, be release by the country come out, this opposite for it is very accurate. Crack spending is according to geology construction and history had produced seismic situation, reach by statistic of seismic bureau perambulate a such conclusion. Hefei area is cracked spending is 7 degrees, mound for instance in relief area is cracked spending is 8 degrees, press 8 degrees of fortify, will undertake differentiating according to aseismatic grade, aseismatic grade is according to you building type differentiates, for instance the brick is mixed, frame cuts force wall structure, or be office building, special grade is different, as relative also as height.
Owner should believe, the country is the conclusion that reachs finally through a few years of field survey, for instance Hefei area its aseismatic coefficient is 7 degrees [link widoczny dla zalogowanych], we can exceed national level, construct and according to 7 degrees much standard is designed. Wanted an earthquake to come only, do not exceed this period number, the building won't produce very big damage, we say for " small shake is not bad, shake can be repaired in, big shock does not fall " . Alleged " big shock does not fall " be when pointing to seismic happening, when practically shake intensity goes to 1.5 degrees 1 degree higher than aseismatic fortify intensity, the building ought to not collapse, we design a section according to the country " build aseismatic design standard " fortify standard will do, be about to see spot construction unit next it can ask to do according to this. Our country has a standard to build aseismatic appraisal standard, the province builds hall to appraisal does, if owner need can entrust appraisal branch side,your house makes identification.
Compensatory: The aseismatic fortify standard of our country building is set in 6 degrees to go to 9 degrees commonly. When happening because of the earthquake, intensity reachs 10 degrees range is not very big, achieve 11 degrees only the epicenter reachs around area. Popularly shake does not know in where happening. And the service life of most house is 50 years, the majority inside 50 years does not produce countrywide major area earthquake, but have to fortify [link widoczny dla zalogowanych], if fortify standard is exorbitant, not earthquake, devoted financial capacity is wasteful, we still do not have so great financial resources. Current, the building fortify intensity of Beijing is 8 degrees, sichuan majority area is 7 degrees. The whole nation has an intensity division into districts to pursue, consider to make repeatedly according to historical record classics. Countrywide aseismatic fortify the basis is same and normative, it is same a standard.
2, the earthquake ended, but a lot of netizens had apparent erroneous tendency when buying a house. Investigating board piece in, end in the evening [link widoczny dla zalogowanych], after the netizen that has 46.51% near chose an earthquake, be willing to buy multilayer trend more, and the high level is bought after the netizen of 33.72% chose an earthquake, the netizen of 19.77% chose small high level, stem from a kind to leave the ground lower probably, the possibility that flee for one's life jumps over old think of a way, a lot of netizens begin to favore multilayer. But, after all the aseismatic ability of category of which kinds of property is best?
Reporter: A lot of netizens are buying a house now from time to tome apparent multilayer deflection, excuse me " multilayer is more aseismatic than the high level capability strong " whether does the view have scientific sex?
Dean Sun: If say construction and quality are same situation, when the earthquake, the high level falls more easily. But, be based on this kind of consideration just about, so we are when fortify high-level standard is different, the building is taller aseismatic order and degree is proper also rise. The room of small high level and high level when why buying a house is valence comparing multilayer tall? Because its cost is high, the cost that aseismatic coefficient exceeds tall building is higher also. Now our aseismatic standard is the earthquake is cracked although be in 6 degrees,spend the following, do not press computation aseismatic design, but should undertake aseismatic fortify by construction. Did not calculate, also should consider aseismatic, consider to go up entirely.
Professor Su: The state divided according to the city aseismatic area, some places are not aseismatic, some places are 6 degrees differentiate, some areas are 7 degrees differentiate. Be in for example Hefei our aseismatic area is same, 7 degrees aseismatic, but house quality is different, situation controlling a house is different also, because of this importance according to your house, and the area that you are in and height, although be civil residence likewise, but the person inside the high level is much, its level is compared multilayer with small high level tall. We established horizontal force of the earthquake finally, when doing not have an earthquake, this level force is nonexistent, but when we are being designed, be about to if the earthquake came,consider, horizontal force of the earthquake had, below horizontal strength effect of the earthquake, our structure won't fall.
We ask to do according to this, how should make reinforcing steel bar, material again the picture comes out, after the picture comes out again construction, construction when you have to strict the blueprint according to me, if you not the blueprint construction according to me, so our design is 0, when the earthquake, still meet. Mix high about floor small aseismatic capacity is compared and character, if say construction and quality are same situation, that is the high level falls easily apparently, but because we consider tall building is easy,falling, the reserve that so we give it security when design is larger. Such very earthquake of it's hard to say came, the aseismatic ability of category of which kinds of property is better. This is cannot relative.
Dean Sun: Additional, differ according to the function, safety factor also is different, we differentiate from the building 3 kinds, a kind of building is essential industry and civil building, coefficient index is 1.1; 2 kinds of buildings are general industry and civil building, coefficient index is 1; 3 kinds are secondary industry and civil building, coefficient index is 0.9. High-level building we are increased gradually to its safety factor from design angle, so high level and multilayer design requirement are different. The key is quality problem now, our courtyard also has Sichuan to make an on-the-spot investigation, some people discover to spot hind, after major building fell, those who pass it is sectional can look going out should be reinforcing steel bar originally, the result is a reinforcing steel bar is done not have, a few bamboo were put inside piece. The course can be when designing layer upon layer guard a pass.
Compensatory: Our country divides aseismatic fortify level into armour, second, third, man according to the importance of building function 4 categories. Average house is third kind, more than 6000 gymnasium, more than 1200 theater, more than 10000 people live or the high level of office is built, still have bridge, airport, hospital, elementary school, nursery school and if building happening is destroyed,can cause serious and secondary the project of calamity, for example nuclear power plant, danger tastes storehouse to wait, its are aseismatic fortify standard is compared all round the building wants tower above a level.
3, in there just is partial netizen to react in forum when the earthquake, hefei building city will be entered again because of the earthquake again low fan period, the wait-and-see mood of Hefei citizen can accentuate again, the earthquake stopped the pace of a few person that be about to buy a house. "Silver-colored 4 " just just begin, accept such cold water to be spilled, instead aggravate industry of Hefei future real-estate walks along the be concerned about of situation.
Reporter: Do you think this earthquake can produce an effect to Hefei building city?
Dean Sun: Integrated for, special in provincial capital city, present design level also rose, aseismatic standard and quality monitoring system are more perfect also, normal construction does not have a problem. Because the earthquake does not go,cannot buy a house. Earthquake and buying a house is two different matters.
Professor Su: The psychology that the house after because of the earthquake concern buys a house can be poured by shake is unscientific. Actually, earthquake and house fall between without inevitable connection, quality difference just can fall. As disease and death, disease and death do not have inevitable connection, the disease is only fierce the fitness plus the person is poor, cooperate together to just can produce death. Relevant Information：

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