Showing posts with label Editorial. Show all posts
Showing posts with label Editorial. Show all posts

Monday, August 8, 2011

Coming up in the Print Version of Architecture Kenya Magazine - Candid Interview with Arch. David Mutiso, FAAK.



The Architecture Kenya team spent some quality time with Arch. David Mutiso, FAAK who opened up in a candid interview with our editors.

Meet this old man, still young at heart and learn about his days at Alliance with the popular principal, Carey Francis, how he developed interest in architecture, the hurdles he encountered. Also learn about his days at the Ministry of Public Works as the first native Chief Architect.

David tells us his side of the story regarding the design of KICC. He talks about his key projects, the UNEP headquarters and of course Buru Buru housing.

Do not miss your copy of the inaugural issue of Architecture Kenya Magazine which will be out by end of September 2011.

To advertise in the magazine, contact the editors through architecturekenya@gmail.com

Tuesday, August 2, 2011

Kenya loses Sh1.4 billion on collapsed buildings





Kenya has lost more than Sh1.4 billion as a result of collapsed buildings in the last 15 years, Board of Registration of Architects and Quantity Surveyors (BORAQS) says. Chairman Gideon Mulyungi said 24 buildings have collapsed in the country since 1996. “Forty-one lives have been lost and 47 people injured over the same period,” Mr Mulyungi said in an interview.




The chairman, who is also Ministry of Public Works secretary blamed land developers for not engaging qualified professionals resulting to the collapse of buildings. He regretted that quacks were also purporting to act as qualified professionals while local authorities are “sometimes” not enforcing the law.




Asked who was sleeping on the job, Mr Mulyungi said: “You and I for refusing to comply with the law despite the fact that the industry is the fastest growing having registered a growth rate of over 400 per cent from Sh38 billion to Sh190 billion in the last 10 years.”




Mr Mulyungi also called on the public to change its attitude and comply with the law on construction. He said unsafe construction sites could easily be detected as they lack signboards and approval from the relevant local authority, use of substandard materials and suspicious speed of implementation.




Mr Mulyungi said BORAQS has put in place measures to minimise the collapse of buildings including the amendment of Cap 525 of the Laws of Kenya. The revision of the law is to empower the board to regulate the profession rather than the registered member, reign on quack professionals and rogue developers.




The board also wants to register more professional bodies and regulate politicians. The board further plans to start campaigns against construction sites that are not properly labelled “as the public supports us by reporting suspicious construction sites.”




BORAQS will meet other professionals associations from East Africa in Kampala on Thursday to sign mutual recognition agreement on cross-border practice of architecture under the common market protocol. BORAQS which is mandated with registering and regulating the professions of Architecture and Quantity Surveying in Kenya is also seeking partnerships with the local authorities, professional associations and corporate entities.




There are 1353 architects in the country compared to 711 quantity surveyors. Since independence 28 architects and 15 surveyors have been suspended. Twenty architects and eight surveyors have also been de-registered since 1963, Mr Mulyungi said.


He said for one to serve as an architect he must have had a minimum of five years training in architecture from an approved University followed by two years practical experience under a registered architect. A quantity surveyor needs a minimum of three years training in quantity surveying from an approved University followed by a two years practical experience under a registered quantity surveyor.




A law aimed at instilling professionalism and boosting capacity in the country’s construction industry will soon be tabled in Parliament. A National Construction Authority Bill has since been developed to register and regulate contractors.




The enactment of the Bill is expected to enhance professionalism and help boost the capacity of local contractors to competitively bid and win contracts locally and in the region. The move is part of the reforms earmarked by his ministry to bring order and coordination to the entire building industry.




The World Bank and its private sector lending arm, the International Finance Corporation, recent report ranked Kenya poorly, especially in the construction industry.

Source: Daily Nation


Friday, July 15, 2011

Death of Physical Planning and Beauty - Who are the Killers? by Aggrey Mutambo

[caption id="attachment_1599" align="alignnone" width="750" caption="A narrow walkway in Zimmerman"][/caption]

Nairobi’s Zimmerman housing estate appears beautiful and well-planned. Viewing it from Thika Road, you would see a series of competing structures, coming up by the day, as though aiming for the sun. You see no congestion, murk, or pollution. That is until you walk on its narrow, muddy streets. Buildings as high as six floors, but with no lifts, stand on what used to be a swamp.


Open sewers flow along the earth roads to empty their turbid content into nearby streams. Still, a construction boom is on and the shortage of land has made people to “rehabilitate” swamps to construct more and cash in on the demand for residential houses.

[caption id="attachment_1598" align="alignnone" width="750" caption="Image of Zimmerman courtesy of http://fivekennys.blogspot.com"][/caption]




Zimmerman is not considered a slum, but it is well on the way to becoming just that. In 2007, the then deputy mayor for Nairobi, Mr Ferdinand Waititu (now assistant minister for Water and Irrigation), told a forum on biodiversity in Brazil that Nairobi was grappling with the problem of parks, wetlands, and other public utility spaces being converted into unplanned or ill-planned housing with dire consequences.




Mr Waititu conceded that the city lacks “an elaborate master plan and its enforcement of laws is weak.” He was right, but nothing concrete has been done since.




Nairobi uses a rigid plan developed in 1948 by the colonialists when the population was no more than 100,000 people. In 1973, the Nairobi Urban Study Group suggested an improvement on the colonial document, suggesting strategies for physical planning and transport to reduce traffic jams and congestion.




However, due to corruption and influence peddling, it did not see the light of day. During a mayor’s summit last year, both the Local Government Ministry and the Nairobi City Council admitted, again, that zoning laws had been thrown to the dogs.




It was further claimed that the city lacks professionalism on the part of the planners. Among the housing estates most notorious for disobeying by-laws
are Kileleshwa, Umoja, Lavington, Kasarani, Roysambu, and Embakasi.




Broken sewers, insufficient water, traffic jams, and frequent fires have been the character of our major towns for some time now.




Often, poor planning is blamed whenever firefighters are unable to reaching burning or col-lapsed buildings. But is it really the only culprit, given that proper plans have been disregarded by the enforcing authorities?




Now, another threat is in the offing. The new Constitution creates 47 counties, with governments that will plan and manage local resources, including public land.




Given that all district headquarters are ill-planned and where proper plans were in place, have been ignored, it can only get worse. “Counties should not be operationalised without proper institutions put in place.




This will help avert the problems occasioned by ‘muddle through’ planning,” warns Mr Geoffrey Njoroge, the managing director of Eco Plan Kenya.




And Kenyans are paying heavily for shoddy planning and disregard for properly drawn up plans, where they exist. Just last month, a makeshift factory in Kariobangi went up in flames.




By the time firefighters arrived, at least three people had died. The toll eventually rose to 11. No department accepted blame even as questions arose on who could have authorised the conversion of a residential house into a jua kali factory.




There is the city’s planning department and inspectorate, the National Environmental Management Authority, and of course laws governing the management of factories and health. But who, ultimately, is responsible for the mess?




The Kenya Institute of Planners admits that it has failed in regulating its members. According to its chairman, Prof Johnstone Kiamba, politicians take advantage of this weakness to ensure that the institute’s suggestions are not implemented.




“Some professionals find it more tempting to go for short-term gains,” says Prof Kiamba. Under section 29 of the Physical Planning Act, local authorities have the powers to approve or reject any development proposals for physical structures within their areas of jurisdiction.




The Kenya Alliance of Residence Associations (KARA) adds that somebody in City Hall should have been arraigned in court to answer charges of negligence.

“In other countries, the city clerk should have been in court to explain what happened,” says Mr Stephen Mutoro, KARA chief executive officer.


Yet this is not the first time we have had such calamities. This year alone, the National Disaster Operation Centre reports that about 5,000 households have been consumed in 110 fires.




According to the Kenya Red Cross Society, most of the fires were in urban areas, especially Nairobi. In April, a fire gutted a huge chunk of Mukuru slums.




It was later realised (not for the first time) that the narrow and sometimes blocked roads in the area mean its interior cannot be reached by fire engines.




The G4S director, Mr Clive Lee, noted that the number of government officials dealing with fires or disasters often complicate rescue efforts.




“Access to these areas (slums) was pretty much limited and even after we could, there was no coordination on the part of the government,” he said.




The blame game could go on and on, but it still gets back to the issue of planning and the absence or presence of a civic culture.




According to Mr Mutoro, Kenya does not need new laws to curb this deficiency; it just needs a society that will obey what the available laws and genuine planners say.




“We don’t need a new piece of legislation, what we need is to remove politicians from planning departments,” he says. The city’s department of physical planning scores low, according to KARA.




And so do the planners themselves. “The informal sprawl in our town centres is not as a result of poor planning, it is as result of a combination of factors,” adds Mr Njoroge.




These include dirty politics and corruption. In Kenya, physical planners are regulated by the Kenya Institute of Planners. Formed in 1999, one of its objectives is “to promote transparency and the acceptance of accountability to the profession, clients, and the society for actions and quality of work.”




But KARA observes that this role might never be properly played if wealthy, corrupt, and powerful politicians continue to influence plans.




“Politicians are like quacks and the faster the institute rids itself of their influence, the better because this will make their self-regulation a reality.”




Although most of Kenya’s big towns already have their physical development plans, none of them has religiously followed them.




The National Trust for Historic Preservation, a US agency that tabulates historical facts about towns, shows that there is no urban centre in Kenya that was carefully planned from inception.




All started as ad hoc centres. Worse still, even those that drew up plans never follow them. “We need to come up with authorities to oversee how our county headquarters will be planned. In fact, planning should be the key issue to focus on before anything else,” says Prof Kiamba.




The new Constitution, under article 184, provides for the creation of laws that will guide the management of urban areas. It also provides for citizens’
participation in all the plans of an urban area management team.




But will the corrupt and the powerful allow this? Kenya’s urban organisation has often been at the mercy of political influence.




As Judith Innes and David Booher write in Public Participation in Planning: New Strategies for the 21st Century, the “people we often call planners are often agencies or a person — often an agency head or elected official rather than a trained planner, even though some professional planners operate in this mode.”




Hence Kenyan planners have become typical “fixers” for politicians

Source: Daily Nation


Wednesday, July 13, 2011

If Your's is a Sloppy Site, You Need to Know this Before you Build - Kenneth Oigo



Flash floods are with us again and, even though they present a big headache to urban dwellers, the greatest danger lies in rural, on-slope settlements.

[caption id="attachment_1595" align="alignnone" width="750" caption="Image of a house built on slope. Source: http://games-all.com/nature-wallpapers/small-house-on-slope.html"][/caption]




However, builders can avoid the risk of collapsing structures by building retaining walls, which are designed to resist the lateral pressure of soil when there is a desired change in ground elevation that exceeds the angle of repose of the soil.




Retaining walls are built in order to hold back ground, which would otherwise move downwards.




Their purpose is to stabilise slopes and provide useful areas at different elevations, for example terraces for agriculture, buildings, roads and railways, dams, flower boxes, and basement walls.




Due to the constant lateral pressure that the retained soil applies on the wall, coupled with the ever-dynamic surcharge and water pressures, retaining walls are always under assault by these forces and, if not properly constructed or designed, they may fail, putting the lives of anyone in the vicinity at risk.




Basement walls may collapse, burying people alive, or dams may fail, sweeping entire populations under a massive wave of sudden floods in river towns downstream.




The main types of retaining walls are:




Gravity walls: These are the most basic retaining walls available in the design range. They depend on the weight of their mass to resist pressure from behind and often have the slight setback of improving stability by leaning back into the retained soil. For short landscaping walls, they are often made from mortarless stone or segmental concrete units. Dry-stacked gravity walls are somewhat flexible and do not require a rigid footing.

Cantilevered walls: Cantilevered retaining walls are made from an internal stem of steel-reinforced, cast-in-place concrete or mortared masonry, often in the shape of an inverted. These walls cantilever loads like a beam to a large, structural footing, converting horizontal pressure from behind the wall to vertical pressure on the ground below. Sometimes cantilevered walls are buttressed on the front, or include a counter fort on the back, to improve their strength, resisting high loads. Buttresses are short wing walls at right angles to the main trend of the wall. These walls require rigid concrete footings below seasonal frost depth. This type of wall uses much less material than a traditional gravity wall.




Sheet piling: Sheet pile retaining walls are usually used in soft soils and tight spaces. They are made out of steel, vinyl, or wood planks which are driven into the ground. Tall sheet pile walls will need a tie-back anchor, placed in the soil a distance behind the face of the wall that is tied to it, usually by a cable or a rod. Anchors are placed behind the potential failure plane in the soil.




Anchored walls: An anchored retaining wall can be constructed in any of the aforementioned styles but also includes additional strength using cables or other stays anchored in the rock or soil behind it. Anchors, usually driven into the material with boring, are then expanded at the end of the cable, either by mechanical means or often by injecting pressurised concrete, which expands to form a bulb in the soil. Technically complex, this method is useful where high loads are expected, or where the wall itself has to be slender and would otherwise be too weak.





There are basically two major ways through which retaining walls fail. These are:




Slip cycle failure: This is when the entire soil mass behind and under the structure becomes saturated with water, making the wall to slide in a circular manner as it gives way to the push of the lateral pressures behind it.




Failure by overturning: The wall is forced to overturn when the lateral pressure is more than the counteracting forces. This mainly happens when surcharge forces are added. This may affect basement walls that are subjected to access surcharge forces from vehicles parked too close to the wall, hence exerting too much pressure.




For maximum safety, the following points must be considered when installing a retaining wall:




When choosing materials, select the type that is best suited for the desired result. Many long-lasting materials are available in the market.




The type of wall you choose should be determined by need. Decide if you need a mass concrete wall or a less expensive pre-cast wall.




Most retaining walls fail because of pressure against the wall caused by water or soil-moisture build up behind the wall. All walls should provide for the back-of-wall water to freely drain down and away from the wall.




This is accomplished with gravel backfill or manufactured drainage blankets and drain pipes. Structural walls require “weep” holes to allow water to drain from behind the wall.




A wall is only as good as its foundation and all retaining walls should be built on structurally sound, compacted foundation sub-base material.




Levelled and compacted earth or gravel fills are acceptable. The foundation material should extend at least one foot beyond the front and back of the base width of the wall.




When building dry-laid stone walls, place the largest, most stable stones at the bottom of the wall and be aware that the base width may need to be as wide as the wall is high.




Walls are more stable and structurally secure if they slope back into the retained slope.




Timber walls and other walls of solid horizontal materials usually have “T” anchors extending back into the slope of undisturbed earth.




This helps walls to resist pressures that force them forward or cause them to pivot on footing material.




A good rule of thumb is to provide at least one anchor per 16 square feet of exposed wall face.

Source: Daily Nation


Monday, June 6, 2011

Bill to Tame Rogue Contractors

[caption id="attachment_752" align="alignnone" width="750" caption="A building that colla[sed in Kiambu as a result of poor workmanship by the contractor"][/caption]Efforts to rid Kenya’s construction industry of cowboy contractors could soon pay off after a Bill to regulate the sector sailed through the first reading in Parliament last week. The Bill seeks to establish the National Construction Authority to oversee the construction sector by registering and accrediting contractors and regulating their activities.



It will also promote professionalism by ensuring only trained construction workers and site supervisors are registered. Currently, there is no legislative framework for centralised registration and training within the construction industry.




The registration of contractors is fragmented and each government agency maintains its own register on administrative basis only. There is also no mandatory continuous professional training for technicians and artisans in the industry that would lead to issuance of licences and certificates.




Lack of a centralised self-regulation and registration mechanism for contractors in the industry has led to the proliferation of non-performing contractors with little or no capacity to undertake works. Fragmented registration of contractors, on the other hand, has created a situation where non-performing contractors and those debarred in a ministry or institution can migrate and actively tender for projects in other ministries and institutions on account of multiple registrations or change of legal status.




Activities of the non-performing contractors have resulted in collapse of buildings in urban centres, often occasioning loss of life due to poor workmanship and non-compliance with specifications; poor infrastructure; and delayed completion of works (leading to project cost over-runs) and stalled projects.




If established, the National Construction Authority will address these challenges mainly by helping get rid of rogue contractors and promoting professionalism.

Source: Daily Nation

Tuesday, October 5, 2010

Training Architects is an Expensive Affair



The Architecture Kenya team would like to register its support for Hon. William Ruto's plans to reform the higher education system in Kenya.

The proposal to expand universities and introduction of strategies to accommodate more qualifiers is long overdue. Every passing year, the number of students qualifying for university increases while the capacity of our higher education institutions remain the same.

Pegging the number of students admitted to bed space availability at the university is a barbaric criteria that needs to be done away with. The universities would ironically go ahead and admit even more students under 'module II' (the very popular parallel system) thus putting to question their 'lack of space' excuse. The motivation has seemingly been the amount of money 'module II' students pay which is way above the combined amount their 'module I' counterparts pay in addition to the support the government offers per student.

Also, courses like Architecture, Engineering, Medicine and other sciences are an expensive affair as compared to Humanities and Social Sciences. Whereas the former require more in terms of equipment, space and even attention by teaching staff, the latter are more demanding in terms of literature material and can be disseminated to large groups of students at a go without jeopardizing on their quality. It is thus unrealistic to provide equal funding to these courses that have entirely different requirements.

The above comments we are making are not new. They have been on the cards for years, but were never implemented for lack of political will. Several commissions and task forces established in the past decade have always recommended a change in university funding mechanism: that government funding to universities should be based on the cost of mounting courses rather than the number of students admitted.


Whereas the changes are commendable, Mr Ruto and his team must avoid the temptation to hurry up at a speed the universities cannot manage. Experiences of the late 1980s and early 1990s when universities were forced through crash admission programmes were woefully regrettable. Their negative impacts are still being felt today.




University education must be changed, but the process must be judicious and consultative devoid of political theatrics and chest-thumping.

The Architecture Kenya Team.