Figure 15: PVM Installation Process (CIDB, 2019)
Logistics and Installation
To ensure the integrity of the PVM units, it is
important to develop a comprehensive logistics
and installation plan to analyse and mitigate
potential issues that may arise during delivery and
erection. In so doing, potential damage to the PVM
can be avoided when travelling long distances and
the need for storage on site eliminated. The size
(width, length, and height) and the weight of a PVM
should be limited to the allowable public roads’
regulations for transportation without requiring
special measures to be taken, such as having a
police escort.
For lifting purposes, the sizing and arrangement
of cranes on site will be dictated by the total lift
weight of the PVM and the reach of the crane.
As an example, for light steel PVM, a 100,000
kg (100-tonne) mobile crane is often required
when the lifting boom is extended to its maximum
distance (around 25 m). Tower cranes are often
used in high-rise construction, but generally,
they cannot lift heavy loads at their full extension
(Lawson et al., 2014).
Various issues should be considered when
selecting a suitable crane and the PVM installation
sequence, including on-site and public safety;
access for the mobile crane; PVM dimensions and
weights; maximum reach of the crane to the PVM
location; site constraints, such as overhead power
lines; and ground-bearing pressures for the legs
of the crane.
Sequencing and planning the order and
progress of the PVM installation is critical at the
construction site as well as the manufacturing
supply line. The Engineer and Installer should
specify the erection sequence to ensure the
integrity of structural staging and any necessary
temporary work needed, which may extend to
progressive weatherproofing for the exposed PVM,
and particularly for any surfaces not forming part
of the building exterior. Special attention should
be given to alignments during installation. The
method statement for installation should indicate
how proper alignments could be achieved to
prevent the abortion of any work(s). Figure 15
shows the typical sequence of a PVM installation
process.
PVM Construction Method — Success
Stories
Central Labour Quarters (CLQ) at Pengerang
Integrated Complex Johor
The CLQ building was constructed in 2015. The
construction period took about six months to
13