[What is RC architecture? 】Compared with SC and SRC structures, which one is the most earthquake-resistant?
When choosing a house, many people will consider whether the building materials are earthquake-resistant. Real estate agents or businesses may also promote the house by emphasizing that the house is made of very solid building materials and is absolutely safe in the event of an earthquake. But do you know what building materials are available on the market? At present, the most common houses on the market are RC structure buildings, which are traditional reinforced concrete, followed by SRC structure and SC steel structure buildings. Do you know what RC building materials are? What is the definition of SC and SRC structures? And you may have heard business tell you that RC structure buildings are not earthquake-resistant and have a long service life. Is this true? The following will introduce each building structure to you one at a time so that you can quickly clear up your doubts!
What is the RC structure? The most common building material on the market—reinforced concrete
RC structure (Reinforced Concrete) refers to a house made of reinforced concrete. The construction method is to arrange steel bars into a column structure, tie them with thin steel bars, put on formwork, pour cement concrete, and wait for the cement to harden. The mold can be removed after forming. Since RC building materials are the cheapest, 90% of the houses on the market are RC structure buildings. The following are the advantages and disadvantages of the RC structure.
Advantages and disadvantages of RC structure
- advantage
- Since RC building materials are heavier, they have the lowest shaking during earthquakes.
- Because the building materials use a large amount of earth concrete, the sound insulation effect and fire resistance are the strongest among the three building materials.
- The construction complexity is the simplest among the three structures, so the construction time is the shortest.
- shortcoming
- RC building materials use a large amount of harder and heavier concrete, so they are only suitable for building houses within 10 floors. Otherwise, when an earthquake causes the building to swing significantly, the too-high columns will be unable to extend and break, causing the risk of house collapse. .
- The column shape that the RC structure can produce is single, so it cannot be used to build houses with special shapes.
- The large cross-section size of the column will occupy part of the building space.
SC steel frame structure—If you want to build a super-high floor, choose a steel structure building!
SC structure (Steel Structurer), also known as SS (Steel Structure), refers to a building built using steel frame structure. The construction method is to use pure steel frame to weld or lock bolts to the desired shape, and then serve as the center of the column. The outer layer is then wrapped with a thin layer of concrete to prevent fire and increase the rigidity of the building. Due to the higher cost of steel frames, the construction price of SC structures is relatively expensive. The following are the advantages and disadvantages of SC steel frames.
Advantages and disadvantages of SC structure
- advantage
- Due to the high toughness of the steel frame structure, there is less risk of column fracture in the event of an earthquake. This structure can be used for super-high floors above the 30th floor. Many office buildings in Taiwan use SC structures.
- The building material has good toughness, and the building can be made into many different shapes.
- shortcoming
- Since the steel frame structure is relatively light, the shaking during an earthquake will be stronger. When a strong typhoon strikes, high-rise buildings may also feel the building shaking.
- Since the steel frame structure has a low melting point, the steel frame may be in danger of melting in the event of a fire or explosion, so the outer layer must be covered with sufficient flame retardant coating.
- The specific heat of the steel frame structure is low, so the interior is prone to be very cold in winter and very hot in summer. Special insulating coating is also required to solve this problem.
- The steel frame structure itself has poor sound insulation effect, and additional sound insulation cotton needs to be installed.
SRC structure—steel reinforced concrete, combining the advantages of SC and RC structures!
SRC structure (Steel Reinforced Concrete) refers to a combination of reinforced concrete and steel frames to build a house. The construction method is to first embed the steel frame columns at the desired location, and then cover them with 15 to 20 cm of cement and fine steel bars. outer layer. Since SRC structures use a mixture of cheap and more expensive building materials, the price of SRC buildings also falls between RC and SC. The following are the advantages and disadvantages of the SRC structure.
Advantages and Disadvantages of SRC Structure
- advantage
- Because the SRC structure is a mixture of reinforced concrete and steel frames, it is not only fireproof and soundproof, but also has excellent earthquake resistance. It is suitable for mid-to-high floors from the 15th to the 25th floor.
- Because the steel frame is used as the core of the column, the cross-sectional area of the column can be reduced smaller than the RC structure.
- shortcoming
- Since two building materials are used at the same time, the construction complexity is high and good quality control is required. Therefore, the construction time will be the longest among the three, and the project price is also more expensive, which will lead to subsequent increases in housing prices.
Will RC structure buildings not be earthquake-resistant enough? How long is the term?
After understanding what SC, SRC, and RC structures are, you may wonder, will I have safety concerns if I choose the RC structure because it is not earthquake-resistant enough? In fact, each structural material has a certain earthquake resistance. What has a greater impact on the safety of the house is whether the house structure is symmetrical and whether the construction quality is good. For example, if the RC structure house has enough steel bars during construction, they are tied well, and the steel bars of sufficient pounds are selected. If the cement and house structure are symmetrical, they will be safe. In contrast, if the SC and SRC structure houses have poor steel frame welding and poor quality control during construction, they will also build high-priced houses with insufficient safety.
In terms of age, the domestically recognized age of houses with SC, SRC, and RC structures is fifty years. However, this number will increase or decrease depending on the construction quality of each building. Therefore, when selecting a construction manufacturer, be sure to fully consider the design and materials. , construction quality and risk assessment and other details to build a safe building. If people want to buy a medieval house, they must consider the age of the house. Also, they can try to choose a house that complies with the new regulations after the 921 earthquake, because after 921, the earthquake-resistant part of the building regulations was revised, which improved the cost of newly built houses. security.
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If you need housing construction design, please contact B-STUDIOThat’s right! B-STUDIO, who is very familiar with building regulations and various building structures, can definitely provide you with the most professional assessment and services in the architectural design and planning of your house.
BSTUDIOWe have a professional construction and design team that can provide you with architecture, interior design, space planning services, old house reinforcement, reconstruction, and renovation services for your house. Any needs are welcome at any timecontact us, let B-Studio help you build a safe and beautiful dream house while enjoying a high-quality home life.
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