Abstract
In this research, a test-bed large-span Hanok which adopts new structural system compared to the traditional structural system has been introduced, and the structural analysis and seismic design for it have been performed to test possibility as a large-span Hanok. The test-bed Hanok is composed of two parts, that is, 1st story part and 2nd story part. The roof structure of 1st story part is similar to that of the traditional Hanok, but that of 2nd story part is new-styled and different from the traditional Hanok. The two parts are joined together side by side. The largest span of this test-bed Hanok is 14.4m in 1st story part and 10.8m in 2nd story part. The structural design was done to extract optimal member size for both raw wood and glued laminated wood with satisfying safety and serviceability conditions. The comparison of the sectional area between raw wood and glulam showed that glulam required less member size than raw wood. The area ratio of the glulam compared to the raw wood is from 0.60 to 0.92, and this shows that, glulam is more economical than raw wood in large-span Hanok from the viewpoint of the required volume of the timber which affects much in cost and construction. Conceptual seismic design methods for the test-bed large-span Hanok were proposed and the structural characteristics of each method were discussed. The proposed method is summarized as addition of shear wall, reinforcing existing shear wall and isolating the basement of the structure from the ground.
Highlights
The Korean traditional timber structure is called Hanok
The test-bed Hanok consists of two parts, that is, 1st story part and 2nd story part
The area ratio of the glulam compared to the raw wood is from 0.60 to 0.92 in this test-bed Hanok
Summary
The Korean traditional timber structure is called Hanok. The main structural characteristic of Hanok is that it utilizes post and beam structural system. The gravity load is resisted by post and beam frame, and the (B) Modernized new-styled Hanok Figure 1. Large-span Hanok cannot be acquired by just expanding the traditional Hanok with its structural system unchanged. New structural system and new material should be adopted to make large-span Hanok aesthetically acceptable, structurally safe and functionally feasible. To enhance life-cycle performance of timber structures, researches on moisture contents of Korean traditional timber houses have been carried out [1, 2]. Monitoring of structural deformation for both on Korean traditional timber house and western large-span timber structures have been carried out [3, 4]. For the seismic design of Hanok, evaluation scheme for the determination of torsional irregularity and conceptual seismic isolation method have been suggested [10, 11]
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