The Relationship Between Bamboo Hut Component, Bamboo Species and Connectors In Bamboo Hut Construction, Kantaravichai district, Mahasarakham Province.

Abstract

The purpose of this study is (1) to explore the relationship between bamboo hut component, bamboo species and connectors (2) Bamboo hut model which has been inherited from native technician’s knowledge, by onsite survey, interviewing, measurement and observation with local technicians at Bamboo furniture shop in Cog Jod market, Kantarach Sub-district,Kantaravichai district, Mahasarakham Province. The sampling consists of 1.20X2.00 meters (small size), 2.00X2.00 meters (medium size) and 2.00X3.00 meters (large size) that can be concluded as the following

Topic 1 : “For relationship between bamboo hut component, bamboo species and connectors”, it is related to each other according to physical and mechanical properties on each bamboo species as follows. (1) In superstructure of bamboo hut, only bamboo pole of Phai-Pha and Phai-Ban (Bambusa bambos (L.) Voss) is used because it can handle high Compressive Stress Parallel to Grain for 400-700 Ksc. with 8 to 16 cm. in its diameter. Therefore, due to toughness and thickness properties on both bamboo species, using connectors is related with those properties by using 3” and 2 ½” wood nails without surface crack from impact force or friction between bamboo and nail surface. (2) In other components or enclosure, both bamboo pole and bamboo split of Phai-Sang-Phai (Bambusa multiplex (Lour.) Raeusch.) are found to use as their Compressive Stress Parallel to Grain is 386-400 Ksc. with 3 to 6 cm.  In addition, a joint which inserts a smaller diameter bamboo pole into a larger one (Positive fitting joint or Ladder joint) is noticed. There have been used air max single leg No. F25, F30 in many parts of bamboo hut except floor cover that only uses air max double leg No. 416J because of the bamboo usage and its shrinkage from insufficient dryness after harvesting.

            Topic 2 : “For bamboo hut model”, it is cottage shape (Kra-Thom) that its maximum width span is not more than 2.00 meters and maximum length is not over 3.00 meters. Since the reason of these numbers is from transportation issue using pickup truck which loading space is 1.50 x 2.30 meters as the loads extending width beyond the side of truck body must be not more than 2.10 x 3.00 meters according to Department of Land Transport’s law.