*3.1.5. The nominal moment and ultimate moment*

**Figure 8** shows the crack pattern of the concrete beam after being tested [21].

**Table 2** [22] presents the result of the nominal moment analysis of the beam and ultimate moment analysis. All the blocks were collapsed beyond to the nominal strength; the average ultimate strength was 22.46% greater than the nominal strength.

#### *3.1.6. The structural system of bamboo reinforced concrete*

The Bali age traditional house and the modern Balinese house constructed for this study used the structural system of bamboo reinforced concrete. The bamboo was splitted in dimension 10 mm × 30 mm. The bamboo was tied to steel stirrup with an 8‐mm diameter, as shown in **Figure 9** [24]. The walls of the traditional Bali age house were made of brick masonry which spacing made of mortar with proportion of 1 Portland cement to 4 sand, whereas the walls of the modern Balinese house were made of concrete block.
