Quacks Behind Incessant Building Collapse – Experts
— March 11, 2014
Over the years, Nigeria has faced the challenge of buildings
collapsing in various locations across the country with enormous loss of
lives and property. This development has been causing governments at
different tiers as well as the people deep worry. Experts have been
brainstorming on how to address this ugly situation with little or no
visible result.
In an exclusive chat with LEADERSHIP, the chairman, Nigerian Insitute
of Town Planners (NITP), FCT Chapter, Mr. Nathaniel Atebije, said the
incessant occurrence of building collapse in Nigeria was attributable to
the activities of quacks.
He said instead of using qualified builders, some developers chose to
use masons and artisans whose expertise did not go beyond mixing
cement, chippings and sand to execute their building projects, which he
described as a recipe for tragedy.
He said: “As an institute, our stand is advocacy, to plead with the
people to make sure that the right people do their job. We encourage
prospective developers to make sure that they reach out to qualified
hands so that they don’t experience building collapse.”
Highlighting steps taken by the institute to curb the use of quacks
in carrying out building projects in the country, Atebije said the
operation of quacks had been minimized in the practice of urban and
regional planning in the FCT with the introduction of professional
stamps and seal.
“The institute has been able to enforce the use of professional
stamps and seal as evidence of professional handling of projects
especially for site analysis report for location plan, layouts, master
plans as well as environmental impact assessment (EIA) reports,” he
pointed out.
He expressed the hope that the success of the exercise would result
in the enforcement of professional stamps and seals as evidence of
professional handling by other chapters of the institute.
It would be recalled that the institute in charge of supervising and
monitoring builders in Nigeria, the Nigerian Building and Road Research
Institute (NBRRI) had made several concerted efforts at curbing the
recurrent building collapse in the country.
Only recently, the director-general/chief executive officer (CEO),
NBRRI, Prof. Danladi Matawal blamed the development on the use of poor
quality materials in building construction.
He said: “The poor applications and use of inferior materials
especially concrete, has been identified as a major causative factor for
collapse of buildings in Nigeria. The failure of structures by
explosion denotes that there was poor concreting on site.”
Added to this, Matawal said were improper foundation and lack of
subsoil investigations, pointing out that “the terminology for
foundations in Nigeria is blinding which is grossly misleading because
it could be responsible for many of the collapses. This is because
blinding is the process of ground preparation in order to provide an
even surface upon which the actual foundation of the structure can be
built.”
According to him: “If a foundation is not properly designed it may
lead to the catastrophic collapse of the soil beneath the foundation,
when the shear strength is inadequate to support the applied load or it
may lead to the excessive settlement of the structure which will take
place due to the distortion of the soil mass as a result of applied
shear stress and in part due to the consolidation of the soil as a
result of increased normal stresses.”
The NBRRI helmsman also elucidated that building collapse in some
cases could be attributed to the overall design of the structure and
site supervision.
“Most collapsed buildings which has been witnessed in Nigeria belongs
to private individuals, who from all deductions did not get guidance
for their structural design from qualified engineers. They fail to pay
attention to the most critical structural framing elements from the
bottom, which is the order of sequence construction, foundations,
columns, beams, slabs, roof members, staircases in reinforced concrete
and many other steel structures. This omission by private developers has
led to building collapse with high fatality,” he added.
He further said that Portland cement, which accounts for 90% of all
the cements produced globally also has a critical role to play in
aesthetics of buildings.
Giving short term measures to reduce collapse incidences in the
country, Matawal said that the Institute had not been idly observing the
trend of building collapse without putting actions in place to curb the
incidence.
“NBBRI has considered the need for the use of some sensitization bill
boards campaigning and sensitizing on the use of quality materials,
employment of appropriate technical personnel to design and supervise
building construction,” he stated.
He listed other measures to include organizing conferences,
workshops, seminars and training programmes for the continuous
professional development (CPD) of stakeholders.
Matawal also said that NBRRI intended to set up a materials testing
laboratory for testing soils, cement, concrete, bitumen and asphaltic
concrete products and other construction products in Abuja while
improving the national laboratoty in Ota as well as contemplate zonal
and even state laboratories in the future.
Some of the long term measures proffered by the NBRRI boss include
the decision to establish a NBRRI academy to train and provide skilled
labour for the construction sector in the areas of draughting,
detailing, iron bending, artisanship, block making and laying brick
concrete and mortar artisans and workmen, plumbing, electrical works and
others.
He tasked the tertiary education sector especially the universities,
polytechnics and monotechnics, technical colleges on the need to work
assiduously to empower students with the appropriate and practical
knowledge to tackle the challenges of the Nigerian technological
aspirations in the construction sector.
In his recommendations, the development control boss said that the
establishment of materials testing laboratory would facilitate carrying
out integrity test for buildings. He also suggested the use of Outdoor
Broadcasting System (OBS) for physical monitoring of construction site
to check excesses by site engineers.