thinker wrote:GarikToo wrote: Я соглашусь что простой кирпичный дом не сейсмоустойчив.
Это и ответ, почему не строют из кирпича "для всех".
GarikToo wrote: Однако 2-х этажный дом с ж/б каркасом, а еще лучше с ж/б бэйсментом будет очень даже устойчив .
И будет при этом:
1. стоить в разы дороже чем обычный деревянный дом.
2. при несильном землятрясении не развалится, но может дасть трещины, ремонт которых будет стоить $$$.
Овчинка выделки не стоит, потому и предпочитают деревянные дома в качестве стандарта "дома для всех". А те, кто может себе позволить $$$, могут и строют из кирпича, железобетона, на шарнирных опорах с маятником посредине... нужное подставить.
.......
У нас во Флориде в настояшее время все же гораздо больше строят именно CBS дома(и цена на такие дома не намного выше, чем на wood frame); многие, покупаюшие 2-х этажный дом, предпочитают и второй этаж тоже CBS, хотя некоторые дома и строят "половина наполовину", со вторым этажом wood frame.
Вот ссылка на специалистов:
We encourage our clients to build CBS homes for the following reasons:
1) Resale value: Not a single client has ever asked to be shown wood homes nor have we ever had a client build a wood frame home. Real estate is an investment that hopefully appreciates in value, a wood frame home is much less likely to appreciate.
2) Windstorm: While wood has it's benefits in high winds, it's flexible while concrete isn't. The most inherent danger to people and property during the high winds of tornadoes and hurricanes is the debris carried in the high winds. Flying at such intense velocity, wreckage can cut right through a building wall and endanger the people inside. According to the Portland Cement Association, tests conducted by Texas Tech University's Wind Engineering Research Center offer dramatic proof that concrete walls withstand flying debris from tornadoes and hurricanes and outperform their wood and steel counterparts.
3) Resource Conservation
4) Durability: Concrete homes are much more durable, far more demands are made on concrete than most any other construction material.
5) Fire Protection: Insurance companies recognize concrete as being safer than any other form of construction when fire threatens a home. Insurance for concrete homes is often 15% to 25% lower.
6) Noise Reduction: Besides being stronger and more durable, the mass of a concrete wall provides an added benefit - a reduction in noise entering the home.
7) Safe Rooms: Safe rooms are becoming a more popular option in South Florida. The best way to keep your family safe during a tornado or hurricane is to build a concrete safe room inside your home.
8. Curb Appeal: A concrete home is well suited to Florida's tropical climate, the vast majority of wood homes simply look out of place in most of South Florida
9) Reduced Energy Bills: Concrete homes save energy in two ways. The mass of the concrete slows down the passage of heat or cold moving through the wall. With the same insulation, a concrete home stays warmer in the winter and cooler in the summer. Also, concrete walls are more air-tight than wood frame walls. Since leaks account for a large percentage of energy loss in the home, concrete homes enjoy savings in energy consumption.
http://tamure.com/newhome/cbs.htm