Based on the investigation by the earthquake showed the importance of building a simple layout and structural elements resisting horizontal forces are symmetrical. Such structures can withstand earthquake forces either due to lack of effect of torque and a more equitable. Earthquake kit
The shape of a building in the planning “Earthquake-resistant buildings” will essentially affect the following things:
- The level of difficulty in planning and analysis
- Conduct saan building hit by an earthquake
The level of difficulty in planning, especially the irregular shape of the building (not symmetrical), requires a dynamic analysis process and very difficult to determine the behavior of the building when the quake struck.
Structures with simple shapes and symmetry have the most good resistance against earthquakes
- Building materials should be as light as possible
This is because the magnitude of the earthquake inertial load is proportional to the weight of building materials.
For example, roof cover over the wooden horses produce horizontal earthquake load capacity of 3 x seismic generated by closing the tin roof above the wooden horses. Similarly, the pair brick menghasiIkan seismic load of 15 x seismic generated by the timber wall. In a country famous japanese earthquake areas, they use paper and bamboo material as the main structure, it is because these materials mamiliki fairly light weight when compared with other materials.
- The system should be adequate load-bearing construction
3.1. Ssistem foundation construction
The structure plays an important foundation to move the seismic load of the wall to the ground. Very simply make the foundation of the house, but the strong foundation requires considerable knowledge that a good building foundation must be solid support load and resistance to change, including vibration.
foundation must be able to withstand and distribute vertical tensile force and a compressive force on the walls. Foundations flat move forces into the soil retained by the soil bearing capacity and lateral earth pressure.
The foundation stone foundation here using local time, on the corner of corner of the building as a place menumpunua srtuktur srtuktur roof and other buildings. Placement of the foundation.
such is intended that when shocks and differences in the strength of the soil supporting the foundation that will move independently, it will not affect each other between the foundation with the other one which will result in fracturing the foundation structure. Placement is also worth noting the foundation rock conditions dasarnya.Pada basically a good foundation is balanced or symmetrical.
3.2. Wall Construction System
Wall construction of earthquake resistant houses are not using brick material but using wood materials. Wood materials are sufficiently precise material used for the construction of the wall frame, in addition to more lightweight and easy to install wood also has a fairly high degree of elasticity, so it is good to use for the construction of earthquake-resistant homes. The wood used is wood paneled which many in the market such as the size 6/12, 8/15.
To cover the walls using a chamber lined with multiplex so that the wind does not get into the room, while the wet area wall coverings and kitchen use concrete technology, which is then coated by ceramics. Another possibility to rigidify the diaphragm wall is a system of using plywood, particle board or the like, or wood diagonal stiffeners to the cubicle wall. In addition to System cross bracing (reinforcement cross) to the wall and the house under construction stage serves to reinforce and strengthen the building a wooden structure.
To meet the requirements of the durability of wood, the wood used to be wood quality 1 that are resistant to climate, was old enough, already soaked and already layered liquid anti-termite.
3.3. Roof Construction System
Here are some more specialized roof function (specific):
- Receive the load by the weight of its own, ie load the horses and vertical directional coating materials and then pass them on to the column andfoundation
- Withstand wind pressure loads are directed horizontally on gevel
- Receive heat by sunlight and withstand temperatures in order to stay cool in the attic and the heat absorbing this is contained in the concept of the concept of tropical architecture
- Avoid the entry of rainwater
On the roof construction earthquake resistant houses, horses using wooden material with metal roof covering using tiles fairly mild. To strengthen the relationship between the rod and maintain stability, then the horse used Construction is the construction of horse with a triangular shape that is constantly up rested on a foundation. The shape is very applicable in the field of earthquake,
Why constantly until the foundation? It is intended that the formation of the house has a triangular shape entirely without Vertikan fields that allow greater torque force during an earthquake. In addition it does not burden the roof construction wall construction is underneath because the pedestal roof rested directly on a local foundation.
Triangle is a very stable form. Vertical fields such as walls and columns are in the areas of triangles which serves to strengthen the construction of horse riding. Some of the aspects to be considered is the connection between the horizontal rods do not lie in the knot point, this is to avoid the occurrence of deflection, the connection must be placed between the drop and the connection press the connection.
3.4. Construction Systems Floor Stage
The stage floor adopt many of the concepts of traditional home for the stage floor is considered more able to resist the lateral forces caused by ground movement,
Besides the home stage aims to maintain the durability of the material, because the wooden houses on stilts material not in direct contact with the ground, and prevent the ingress of water when the torrential and flood mujan
When associated with an environmentally sound house, then the house has the potential to keep the land green stage and the ground surface as a water catchment area.