Description of project brief or design statement for structural engineering works. Covers architectural, civil and structural, electrical and mechanical services.

1. 2-1
EXAMPLE OF STATEMENT OF DESIGN OR SPECIFICATIONS
FOR CIVIL, ELECTRICAL AND MECHANICAL
WORKS:CASE OF ENGINEERING
LABORATORY COMPLEX
By
Eng. Prof. S. K. Makhanu, B. Sc. (UoN), M. Sc. (UoN), Ph. D (Kyoto), MIEK, P. Eng.
AEQ Consultants, P. O. Box 37-50100, Kakamega, KENYA
Contact E-mail; ksmakhanu@yahoo.com/aeqconsultants@yahoo.com
Part 1: Architecture
(State the basis of design, scope and reference to relevant clauses)
1、Basis of Design
This design shall be designed according to Kenyan standards but conforming to related BS
standards.
1.1 Code for Design of Civil Buildings
1.2 Code of Design on Building Fire Protection and Prevention
1.3 Code for Design of Science Laboratory Building
2、The main design Principle
The building is designed on the basis of the reconnaissance survey and on information from
similar works in Kenya and elsewhere. Reference made to specifications for similar works
already constructed in Kenya.
3、 Building Design
(discuss the scope of building, the size, functional layout, elevations etc)
3.1 Overview
Unit A-- Mechanical laboratory (single-floor building)
Unit B-- Comprehensive laboratory building consisiting of civil, electrical and computer labs
(three-floor building)
Unit C-- Power generating room (single-floor building)
3.2 Overview of Building Characteristics
a．This building has a total building area of 6502.8 m
2
, wherein the Mechanical Laboratory
covers 2689.70 m
2
, the Comprehensive Laboratory building 3772.8 m
2
and the Power
generating room 90.5 m
2
.
b．This building adopts frame structure; the building structure is of Category C; the service life
is 50 years; the seismic intensity is 5-6 degree.
c． The fire-proof level of this building is level 2.
d． Water-proof level: roof water-proof level is level 2.
3.3 Plan Function Layout
Unit A：The plan form of the mechanical laboratory is “T” shaped.
11 laboratories are arranged inside the Mechanical laboratory. The head of “T" is arranged in
the CNC Lathe training Room, CNC Milling Machine and Machining Center training Room,
General Lathe training Room, Fitter Training Room, Machining Training Room, five

2. 2-2
laboratories in total. Other parts are hydraulic laboratory, Mechanics Laboratory, Surveying
and Drawing Room, Tolerance Laboratory, Basic Mechanical Designing Room and Rapid
Prototyping Manufacturing (RPM)Laboratory, 6 laboratories in total.
Unit B: Comprehensive laboratory building (three-floor building)
6 laboratories are arranged in the ground floor: Concrete Performance Testing Laboratory,
Asphalt mixture Laboratory, Mechanical Laboratory, Asphalt Laboratory, Aggregate
Laboratory, Mortar and Maintenance Laboratory.
7 laboratories are arranged in the first floor: Electric Device Laboratory, Electric Control
Laboratory, Motor Disassembly Laboratory, Electronic Assembling Laboratory, Electronic
Laboratory, Electrical Laboratory and Decoration Materials Laboratory of civil engineering
laboratory.
6 laboratories of Medical Training and 1 laboratory of machnical laboratory are ranged in the
second floor: Hematology and detection technology laboratory, Basic clinical detection,
Molecular biology and detection technology, Biochemistry and detection technology,
Microorganism and parasite detection technology, Immunology and detection technology and
AutoCAD computer room.
Unit C: Standby Generator sets Room. In addition to the adaptation of generator sets, there
are diesel storage room, duty & tools room as well as repairing room is included.
3.4 Profile Design
The mechanical laboratory is one-floor building, with floor height of 4.2m. The comprehensive
laboratory building is a three-floor building, with floor height of 4.2m. The height gap of inside
and outside is 0.60m.
3.5 Elevation Design
The sloping roof:
Integrated with the local climate and environmental characteristics, the sloping roof, that is a
simple and neat, but also echoes with the local architectural style design, adopts red tile roof
and red and white walls to realize both economical and practical.
3.6 Vertical Transportation Design
The vertical transportation of this building mainly adopts 2 stairs, one ramp and 1 vertical
elevator.
3.7 Building Fire Fighting Design
There are three floors in the laboratory building, each of which provided with a fire-proof zone,
which is less than 2500m
2
and is provided with 2 evacuation stairs.
3.8 The main functions of Building and size of allocation table:
Building Floor Lab Quantity
of labs
Name Area（m2）
Unit A 1 floor
Machanical
Laboratory
1 Surveying and Drawing Room 100
2 RPM Laboratory 153
3 Basic Mechanical Designing Room 100
4 Mechanics Laboratory 100
5 Fitter Training Room 130

3. 2-3
6 Tolerance Laboratory 100
7 General Lathe training Room 230
8 Machining Training Room 500
9 CNC Lathe training Room 260
10
CNC Milling Machine and Machining
Center training Room
320
11 Hydraulic Laboratory 100
12 Switch Board Room 50
Unit B
Ground
Floor
Civil
Engineering
Laboratory
1 Mortar and Maintenance Laboratory 160
2
Concrete Performance Testing
Laboratory
100
3 Mechanical Laboratory 126
4 Aggregate Laboratory 152
5 Asphalt Laboratory 152
6 Asphalt mixture Laboratory 152
7 Switch Board Room 33.6
8
Fire Fighting, weak electricity
room and duty office 25.2
The
First
Floor
Electric and
Electronics
Laboratory
1 Electrical Laboratory 100
2 Electronic Laboratory 100
3 Electric Control Laboratory 100
4 Electric Device Laboratory 100
5
Electrical and Electronic Automation
Laboratory
100
6 Electronic Assembling Laboratory 100
7 Motor Disassembly Laboratory 100
8 Decoration Materials Laboratory 160
9 Office 25.2
10 Storage Room 33.6
The
second
Floor
Medical
Training
Laboratory
1 Basic clinical detection 100
2 Hematology and detection technology 100
3 Biochemistry and detection technology 100
4
Microorganism and parasite detection
technology
100
5 Immunology and detection technology 100
6
Molecular biology and detection
technology
100
7 Medical Experiment Room 100
8 AutoCAD Computer Room 160
9 Office 24.9
10 Storage Room 33.6

4. 2-4
Unit C 1 floor
Generator
Set Room
Generator Sets, Storage Room and
1
Duty Office
90.5
3.9 Building Decoration
a． External decoration
E
x
t
e
r
n
a
l
d
e
c
o
r
a
t
i
o
n
External wall surface Wall surface of
main body
Building coating or concrete brick or
natural stone(partly)
External thread
picking foot
Building coating
Outdoor stage Primary entrance
and special path of
disabled
Granite stage
Secondary
entrance
Cement cutting hair stage
Water scattering Concrete water scattering
External window Aluminum windows, ordinary
single-glass,
With screens
b． Materials for the walls
As a result of the reinforced concrete frame structure, so all the walls are non load-bearing walls.
Wall materials: use of lightweight partition walls, 150mm thick and light steel keel fiber cement
board or gypsum wall pressure can be used. 150mm thin stone can be used on external walls of
concrete block or cement blocks or local commonly used cutted stone.
Infill material: brick for internal walls 150mm thick plastered both sides. But for external wall
infill is either concrete block 150 mm plastered both sides or dressed stone 150mm thick plastered
on internal surface.
c． Water-proof design
The roof water-proof level is level 2. The water-proof material adopts the combination of one
layer of SBS modified bitumen water-proof coiled material and one layer of SBS modified bitumen
coating. The coiled material is 4mm thick and the coating is 3mm.
The floor of toilet and clean room adopts 2 thick polymer cement water-proof coating.
d． Door and Window Design on External Wall
The external window adopts Aluminum ordinary single-layer glass window. Safe glass is adopted for
window with unit area larger than 1.5m
2
. For the air tightness of door and window, the external
window ≥ level four. Please refer to the table below for other physical property index:
Physical property Unit Index Physical Unit Index

5. 2-5
property
Air-pressure
resistance
Pa ≥3000 Coefficient
of heat
transmission
w/m
2
.k ≤2.7
Air penetration
property
m
3
/m.h ≤1.5 Sound
insulation
property
dB ≥25
Rain water
penetration
property
Pa ≥250
e．Internal Decoration
Item
Room name Ground (floor) Wall surface Ceiling
Laboratory and corridor
Slip resistant
floor tile
Fire-proof
emulsion paint
Fire-proof
emulsion paint
Toilet
Slip resistant
floor tile
Ashlars brick
PVC plate
ceiling
Distribution room Cement floor White wash White wash
Part 2(Two) : The Structure
This design of building structure is made according to KEBS standards but conforming to related BS
standards applicable in the republic of Kenya.
1. Basis of Design
1.1 Load Code for the Design of Building Structures
1.2 Code for Design of Concrete Structures
1.3 Code for Design of Masonry Structures
1.4 Code for Seismic Design of Buildings
1.5 Code for Design of Building Foundation
1.6 Technical Code for Ground Treatment of Buildings
1.7 Code for Investigation of Geotechnical Engineering
1.8 Regulations to Compile the Documents of Architectural Engineering Design
2. Basic Conditions of Structure
2.1 The plan is to build three buildings: Unit A is a single floor building for Machnical laboratory;
Unit B is a comprehesnsive laboratory building with 3 floors above ground; The above
building adopts steel frame structure. Unit C is a single floor generator set building for
which the structure adopts Brick-concrete structure constructed plus column, or reinforced
concrete frame structure frame.
2.2 Foundation type: independent foundation
2.3 Service life of structure: 50 years
2.4 Safety level of structure: level 1.
2.5 Seismic intensity: 5-6 degree. The basic seismic acceleration value is 0.2.
2.6 Seismic category: B.

6. 2-6
2.7 Foundation design level: A.
Part 3(Three): Water Supply and Drainage (mechanical laboratory and Comprehensive laboratory
building)
1.1 Water supply system: water is supplied directly by means of urban water supply pipeline
network with putting the water tank on the roof for Increasing pressure on water supplies.
The water supply pressure is no less than 0.2MPa. The water supply pipe material adopts
steel plastic composite pipe.
1.2 Water drainage system: sewage water and waste water of this building are discharged
together. The drainage vertical pipe adopts hard polyethylene inner spiral PVC-U pipe. The
domestic drainage water is discharged into the municipal water drainage pipeline network
through the central processing made by septic tank.
1.3 Rain water system: rain water is collected and drained through organized system. The rain
water on the roof is discharged to the water gutter and then drained to water collecting
tank( 60 m3), and after settling for greening buildings sanitary use.
1.4 Fire fighting system: The fire hydrant system is set for indoor rooms and fire hydrant box
adopts local common practice of fire hose. The fire-fighting water source shall be provided
uniformly by fire-fighting pump room inside the campus.
Part 4(Four) : Ventilation and Insulation
1.1 The Machanical Laboratory
1.1.1 Ventilation: natural ventilation is adopted in the workshop and the toilet is provided
with mechanical air exhausting (air exhausting fan).
1.1.2 Insulation: To place aluminum foil for the insulation to the under of roof tiles for the hot
areas building. In addition, to put dormer windows(with hopper windows) on the
sloping roof in order to increase ventilation in the roof layer to achieve the purpose of
insulation.
1.2 Comprehensive Laboratory building:
1.2.1 Ventilation: natural ventilation is adopted in the room and the toilet is provided with
mechanical air exhausting (air exhausting fan). Mechanical air exhausting is adopted in
asphalt composite material laboratory practical training room, asphalt laboratory
practical training room and microorganism and parasite inspection technology room.
The fan is arranged on the ceiling.
1.2.2 Insulation: To place aluminum foil for insulation to the under of roof tiles for the hot
areas building. In addition, to put dormer windows(with hopper windows) on the
sloping roof in order to increase ventilation in the roof layer to achieve the purpose of
insulation.
1.2.3 Smoke extraction. The mechanical smoke extraction system shall be arranged when
the length of path exceeds 60m. The fan is arranged on the ceiling.
Part 5(Five) : Electrical Specifications
1. design basis
Technical conditons provided by the Owner and known locally in Kenya
The local design standard and norms
"Architectural design code for fire protection"
"Building Lightning Protection Design Code"
"Automatic fire alarm system design specification"
"Power distribution system design specification"
"Low-voltage power distribution system design specification"
"Architectural Lighting Design Standards"
"Electrical Design of civil norms"
2. design scope
Low-voltage distribution systems and power distribution; standby generator sets; general

7. 2-7
lighting and emergency lighting; Lightning Protection and grounding system; telephone
communications and network systems; broadcast system; Fire Sprinkler, and Smoke
systems.
2.1 Electricity transformation and distribution system:
Load rating:
The building is the ordinary multi-floor and single-floor building equipped with fire
fighting electrical equipment, fire control center, network and communications
equipment, accident and evacuation lighting. The sophisticated, important equipment
is equipped with high load of power supply. The general distribution, lighting and
general equipment are equipped with electric power load by ordinary load of power
supply.
Load Capacity
This power of the building is supplied by the power transformation and distribution
station of the Campus.
Load capacity of Lighting electricity: The sophisticated, important Laboratory:
18W/M
2
, The ordinary Laboratory: 11W/M
2
;
Load capacity of Equipments: Mechanical Laboratory: 645.7KW; Electricial and
electronics Laboratory: 169KW; Civil Engineering Laboraroty is : 243KW; Medical
training laborotory: 16KW; Rapid prototyping Manufacturing Laboratory is about:
50KW; part of the equipments inside of the Laboratories is equipped with high load
of power supply.
Lighting Load: 68KW +30 KW = 98KW
Estimated load: 1222KW
Total installed capacity: 1600KVA.
2.2 emergency power supply system
Diesel generator set is configurated as the emergency power supply for the Building,
with a single generator room (C Building) which consists of one unit of 600KW
generator set for the fire load and emergency load use.
Part 6(Six) Power distribution and lighting
1. Low-voltage distribution voltage is 415V/240V volts using a combination of trunk-type and
radial distribution type. The high load equipment such as fire fighting equipments adopts
double-loop power distribution and terminal switch approach. The normal lighting adopts
energy-saving fluorescent lighting. The main principle of illumination degree of the laboratories
are as follows:
Common laboratory 300Lx
Precision Laboratory 500Lx
Doors and Halls 100Lx
Office 300Lx
2. Lighting Source: Adopting highly efficient fluorescent lamps, in order to improve the power
factor and energy-saving, fluorescent lamp electronic ballasts are configured.
3. The general lighting and emergency lighting are configured. Exact Lighting will be based
on different characteristics of various architectural space and configuration, and energy-saving
fluorescent lamps and metal halide lamp etc will be installed for normal lighting, And in the
important places and public place, the emergency lighting and evacuation instructions lighting
will be configured.

8. 2-8
Part 7(Seven): Lightning Potection and Gounding
The building is with the second level lightning, and the grounding system adopts TN-S system.
The joint grounding menthod is adopted and the grounding resistance requirement is less than 1
ohm. To prevent lightning electromagnetic pulse caused by over-current and over-voltage, the
Surge Protection Device (SPD) is installed in the corresponding part.
Part 8(eight): Control System
1. To meet the requirements of local norms and standards of fire fighting in Kenya, the building is
equipped with automatic fire sprinkler system and smoke detectors system.
2. Power supply of fire fighting and lighting system
Fire electrical equipment distribution adopts double-loop power supply with terminal switch
approach and equipped with emergency lighting and evacuation instructions.
Part 9(nine): Weak Electricity systems
1. Design scope: telephone systems, network system.
Broadband network and telephone system
2. The building is equipped with broadband network and telephone systems. The local call and
broadband network are put into from outside the building by the introduction of fiber optic cable,
and then laying to the electronic equipment room by wearing pipe, The patch panel and other
equipment will be set up in the equipment room.
Part 10(TEN): Specification for Equipment
equipment shpld be described in sufficient detail to enable the ordering from suppliers. The
standard from is to describe the equipment technical details including a drawing / picture.
1. Specification for a Computer
Item (NO.3) Computer & 19” Monitor
Picture

9. 2-9
1.1.1.Specification
 OS : Vista home basic
 CPU : Core2Quad Q9400
 HDD : 250 GB
 RAM : 2(DDR2) GB
 CACHE MEMORY : 2 MB
 ODD : Super-multi
 GRAPIC : nVidia Geforce 7100
 SOUND : High definition audio
 KEYBOARD : PS/2
 POWER : AC 220V
 SIZE : 173×365×388mm(WHD)
 SLOT : 2×PCI, PCI-E(16X) 1, PCI-E(1X) 1
2. Specification for Microphone
Item (NO.9) Microphone
Picture

10. 3-10
2.1.1.Specification Features
• Provides natural, full-range vocal reproduction
• Silent on-off operation thanks to MagnaLock™ switch design
• Hi-ENERGY® neodymium magnet for improved output and transient
response
• Two-stage ball-type screen reduces wind noise and “popping” during close
use
• Corrosion-resistant contacts from gold-plated XLRM-type connectors
• Superior internal shock mounting reduces handling noise
• Rugged design and construction for reliable performance
• Cardioid polar pattern reduces pickup of sounds from the sides and rear,
improving isolation of desired sound source
SPECIFICATIONS
• ELEMENT: Dynamic
• POLAR PATTERN: Cardioid
• FREQUENCY RESPONSE: 90-16,000 Hz
• OPEN CIRCUIT SENSITIVITY: –55 dB (1.7 mV) re 1V at 1 Pa*
• IMPEDANCE: 300 ohms
• SWITCH: MagnaLock™ on/off
• WEIGHT: (less cable and accessories) 10.7 oz (304 g)
• DIMENSIONS: 7.28" (185.0 mm) long, 2.09" (53.1 mm) head diameter
• OUTPUT CONNECTOR: Integral 3-pin XLRM-type
• CABLE: 15.0' (4.5 m) cable with XLRF-type connector at microphone end,
XLRM-type connector at equipment End
3. E-learing solution
Item
(No.20 ) e-learning solution : Authoring tool

11. 3-11
Picture
3.1.1.Specification
Editing tool to record all contents of lecture while writing on the screen
with electronic board function and teacher’s lecturing voice and
appearance simultaneously into one video
1. Electronic board function
- Support pen, highlighter, eraser and magnifier
- Support various kinds of colors and thickness
- Open Power point file
- Support viewing of all page lists and transferring to the designated
page
- Support detection of pen pressure sensitivity
2. Recording function
- Automatic creation of the table of contents in the unit of lecture
document page
- Manual creation of the table of contents
- Pause recording
- Cancel recording and re-start recording
- Support conversion to windows screen
- Camera preview
- Screen/camera/microphone setting
- Manual creation of the table of contents during recording session
- Reduce audio noise
3. Editing function
- Edit video contents in the unit of table of contents (Drag & Drop
mode)
- Support timeline editing interface for manual indexing
- Function to modify information on the table of contents
- 2-stage (chapter/section) of hierarchical structure for table of
contents
- Trash bin function
4. Playback function
- Display the table of contents
- Change the location of screen/camera window
- Full screen playback

12. 5-12
4. Master table
Item
(No.23 ) Master Table : Made-to-order
Picture
4.1.1.Specification • Material: Inside-Chipboard, Outside-HM film coated
• Holes for connection
• Size: 1800x750x750mm(WxDxH)
5. Student Desk
Item
(No.26 ) Student Desk : For 2 Users
Picture
5.1.1.Specification • Material: Inside-Chipboard, Outside-HM film coated
• Size: 1600x600x750mm(WxDxH)