Page 385 - Proceedings Collega2023

if no preservation process is carried out, it burns quickly if a fire-resistant finish is not used, and the
strength of the bamboo stems breaks easily if conventional joints are used (Artiningsih, 2012). The use of
bamboo as a construction material in buildings on the island of Java is starting to be widely implemented;
which are generally constructed with a truss system or frame truss system because the bamboo material
used in building structures has good properties of flexibility and parallel compressive strength.

To support the bamboo in building construction, many efforts have been made to find suitable
connecting tools for assembling bamboo, including those carried out by (Morisco, 1996) and
(Pathurrahman, 1998), who researched increasing the strength of connections in bamboo by making filled
connections in bamboo. To make the bamboo be joined into a composite, similar research was also carried
out by (Hogan Archer, 2010) by filling in a mortar and providing reinforcing steel to the parts of the bamboo
to be joined. (Nugraha, 2012) conducted similar research but used resin as a filler and carried out various
tests with various force angles (0º, 45º60º). Analysis of the lateral resistance of joints filled with wood and
mortar known as Morisco-Mardjono joints was carried out using the EYM (European et al.) application,
which aims to formulate the lateral strength of Morisco-Mardjono system joints, which is influenced by
connection geometry data, bolt yield bending moment and strength. Bamboo supports and material
support strength (Awaludin, 2012). Unfortunately, the performance of traditional connecting devices used
for generations is not considered in existing research. This research explores existing traditional grafting
tools and then describes their performance so that they can be used as a reference in researching to find
grafting tools for bamboo.

Connecting tools are various ways of uniting or combining one part with another part into one
part. Traditional connection systems that are common in the field consist of two types. Namely the binding
technique using a binding tool in the form of a rope and the peg technique using a connecting tool in the
form of a peg. These two connection techniques are connection systems considered more accessible and
cheaper to process, but the performance provided has not been well described. An improper connection
system can cause damage to the bamboo used in building structures, thereby endangering building users.

Methods
This research adopts a qualitative descriptive research method, which requires researchers to
analyze and describe the data and information obtained. The data and information were then collected
using a primary and secondary approach. The primary approach is carried out through field observations
by collecting measuring data and documentation. Meanwhile, the secondary approach is based on
literature studies from books and the internet. All data obtained will be analyzed and then explained in
the writing of this research, which is presented in the form of a descriptive narrative.

Results

The results of field observations found that various techniques and tools for connecting bamboo
materials were used in buildings in Java, Indonesia. The type of connection used will affect the appearance
and durability of the building. Connection techniques themselves are divided into three types, namely tie
techniques, peg techniques, and substitution techniques. Meanwhile, the material shows that the

International Conference on Local Wisdom of the Malay Archipelago (COLLEGA 2023) Page - 372 -