3. LOCATION
AT THE HEART OF AMMAN IN MECCA STREET.
SURROUNDING AREA IS MOSTLY OFFICE TOWERS.
POSITIONED NEAR AN INTERCHANGE.
VERY HIGH ACCESSIBILITY.
4.
5. WHY ETABS AND SAFE ?
DEVELOPED BY CSI (CONSTRUCTION SPECIFICATION INSTITUTE).
THEY WORK COMPATIBLY.
2D/3D MODELLING.
LINEAR/NON-LINEAR ANALYSIS.
SIMULATION OF EARTHQUAKE AND WIND LOAD ON STRUCTURE.
FRIENDLY INTERFACE, EVEN FOR DESIGN OF COMPLICATED STRUCTURES.
6. DEAD LOAD CALCULATION
LOAD NAME VALUE UNIT SOURCE
PARTITION 2 kN/m2 UBC 97 code
TILING (MARBLE) 0.4 kN/m2 2cm * 20 kN/m3
MORTAR (LIGHTWEIGHT
CONCRETE)
0.16 kN/m2 2cm * 8 kN/m3
MECHANICAL AND ELECTRICAL
EQUIPMENT
0.2 kN/m2 UBC 97 code, table
16-B
FALSE CEILING 0.1 kN/m2 UBC 97 code, table
16-B
FIRE SPRINKLERS 1.11 kN/m2 UBC 97 code, table
16-B
TOTAL 3.97 Take as 4
7. OTHER LOADS
FAÇADE LOAD
APPLIED ON THE PERIMETER OF THE STRUCTURE
HAS VALUE OF 1KN/M2. (ASCE7-5 CODE, SECTION 9.8).
SNOW LOAD
MINIMUM SNOW LOADS (0.240 KN/M2) ARE APPLIED.
8. LIVE LOAD REDUCTION
ACCORDING TO UBC 97 PROVISIONS.
TRIBUTARY AREA METHOD.
MINIMUM FACTOR FOR MULTIPLE STORIES IS 0.4.
9. LIVE LOAD (ACCORDING TO IBC 2009)
AREA LOAD UNIT SOURCE
GROUND FLOOR 4 kN/m2 IBC 2009
Code
PARKING FLOORS (1-3) 4 kN/m2 IBC 2009
Code
HEALTH CLUB (1-2) 4 kN/m2 IBC 2009
Code
LEFT TOWER (13 FLOORS HOTEL) 3.2 kN/m2 IBC 2009
Code
RIGHT TOWER (33 FLOORS
OFFICE AREA)
3.6 kN/m2 IBC 2009
Code.
13. EARTHQUAKE LOADS (UBC 97)
TWO LOAD CASES (Qx, Qy).
TYPE ANNOTATION VALUE SOURCE
IMPORTANCE
FACTOR
I 1 TABLE 16-K UBC CODE
OVER-
STRENGTH
FACTOR
R 4.5 TABLE 16-N UBC CODE
TIME PERIOD CT 0.02 PROGRAM CALCULATED
SOIL PROFILE - SC TABLE 16-J UBC CODE
SEISMIC ZONE
FACTOR
Z 0.20 TABLE 16-I UBC CODE
14. LOAD COMBINATION
TWO MANUALLY GENERATED COMBINATIONS.
SHEAR WALL COMBINATIONS AND CONCRETE FRAME COMBINATION ARE
AUTOMATICALLY GENERATED.
Name Load Scale Factor Load Scale Factor Type
Service Load Dead 1.0 Live 1.0 Linear
Ultimate Load Dead 1.4 Live 1.6 Linear
23. INTER-STORY DRIFT CHECK
Drift is the difference in horizontal deflection between the top and bottom
of any storey.
The story drift shall not exceed 2.5% of the story height for structures with
fundamental period less than 0.7 second, for it to be considered safe.
Allowable story drift = 2.5% * 3300mm = 82.5mm .
Load Case Maximum Drift
(mm)
Comparison Safety
Qx 4.185 4.185 < 82.5 Safe
Qy 6.538 6.538 < 82.5 Safe
39. DIAPHRAGMS
EACH SLAB HAS ITS OWN DIAPHRAGM.
DIAPHRAGMS ARE ALL RIGID.
RIGID DIAPHRAGMS HAVE INFINITE IN-PLANE STIFFNESS PROPERTIES.
THEY DON’T EXHIBIT THE ACTUAL IN-PLANE STIFFNESS PROPERTIES AND BEHAVIOUR.
THE ADVANTAGE OF THIS METHOD IS DECREASING THE COMPUTATIONAL TIME.
45. POST TENSION SLAB DESIGN
SLAB DESIGN OUTPUT
TENDON PROFILES.
AMOUNT OF PULLING FORCE FOR EACH TENDON.
NEEDED ELONGATION VALUES FOR EACH TENDON.
DEAD ENDS AND LIVE ENDS.
BILL OF QUANTITY (BOQ) FOR SLAB.
49. COMMUNICATION BETWEEN PROJECT PARTICIPANTS
MANY CONSULTANTS.
A LOT OF WORKERS.
DIFFERENT COMPANIES.
??? HOW TO ARRANGE COMMUNICATION ???
PROLOG IS A WEB BASED SCHEDULER
HELPS IN MANAGING COMMUNICATION
AMONG PROJECT PARTICIPANTS.
50. CONSTRUCTION TENDERING
SELECTION OF CONRTRACTOR
THIS ISN’T THE FINAL DECISION TO SELECT A SPECIFIC BIDDER, BUT IT HELPS TO
SORT OUT AND FOCUS ON BEST POTENTIAL BIDDERS.
EXCLUSIONS:
CRIMINAL RECORDS, IF THE BIDDER HAS ANY. THEN THEY WOULD BE
EXCLUDED FROM THE SELECTION.
BUSINESS FAULTS, A BIDDER WHO HAS THESE CAN CAUSE A RISK FOR THE
PROJECT. THUS, WOULD BE EXCLUDED.
51. CONSTRUCTION TENDERING
SELECTION OF CONRTRACTOR
REQUIREMENTS
TECHNICAL AND PROFESSIONAL QUALIFICATIONS, EXPERIENCE AND
CAPABILITY IS THE MOST IMPORTANT WHEN IT COMES TO LARGE SIZE
PROJECTS.
FINANCIAL AND ECONOMICAL CAPACITY, THIS CAN GUARANTEE THE
PROJECT FEASIBILITY.
52. CONSTRUCTION TENDERING
SELECTION OF CONRTRACTOR
AWARDING CRITERIA
AFTER SELECTING THE BEST AND LIMITING THE BIDDER NUMBERS, IT’S TIME FOR SELECTING THE
BEST OF BEST BY HAVING A DEEPER LOOK ON THE REMAINING BIDDERS, REGARDING THE
CRITERIA’S.
1. PRICE
2. HEALTH AND SAFETY
3. SUSTAINABILITY
4. RESPONSIBLE BUSINESS PRACTICE
5. COMMITMENT TO DELIVERY DATE
53. PROJECT RISK ASSESSMENT
No Risk consequence Likelihood
Brief
Execution
16 Price inflation of construction
materials
High Moderate
17 Late delivery of materials High Moderate
18 Insufficient or late funding High Moderate
19 Late Design changes High Moderate
20 Tight project schedule Very High High
21 Lack of coordination between
project participants
High Moderate
22 Low management and supervision of
construction
Very High Low
23 Machinery or equipment breakdown High Low
24 Insufficient amount of skilled labours High Moderate
RISKS AT EXECUTION STAGE.
54. .
PROJECT RISK ASSESSMENT
QUALITATIVE RISK ASSESSMENT.
SCALED FACTOR MAY BE USED.
MODERATE OVERALL RISK.
55. MEASURES AGAINST DIFFERENT RISKS
no Phase Solution
16 Price inflation of construction
materials
Run a net present value estimation of the project, considering
inflation rates.
17 Late delivery of materials Include penalty clauses in contracts with the subcontractors.
18 Insufficient or late funding Set the project budget apart from and provide at early
stages of the project.
19 Late Design changes Notify the client about the changes in cost and time before
doing and change. Also, account sometime in the scheduling
to encounter any sudden change.
20 Tight project schedule Adopt an efficient project tracking program to maintain
schedule.
21 Lack of coordination between
project participants
Adopt proper software and methods for communication
between project participants.
22 Low management and supervision of
construction
Make a checklist for things that need to be checked up
regularly. Put clear standards and task for project’s
supervision.
23 Machinery or equipment breakdown Have contact with backup machine operators and owners.
And an on-call maintenance team.
24 Insufficient amount of skilled labours Having contact with backup workers in case of having
workers missing. And providing workers training program.
RISK MITIGATION PLAN
56. CONSTRUCTION SAFETY MANAGEMENT
HIGH RISE STRUCTURE BUILDING HAS HIGHER POTENTIAL SAFETY RISKS.
SAFETY OF CONSTRUCTION SITE
1. IMPROVES PRODUCTIVITY
2. KEEPS PROJECT ON SCHEDULE.
WEAK SAFETY PLAN
1. ACCIDENTS CAN CAUSE DELAYING AND FINANCIAL ISSUES
2. THAT CAN LEAD THE PROJECT TO CRISES AND FAILURE.
58. CONSTRUCTION SAFETY RISK ASSESSMENT
QUALITATIVE RISK ASSESSMENT.
RISKS ARE PLACED ACCORDING TO
1. THEIR LIKELIHOOD.
2. IMPACT.
59. CONSTRUCTION SAFETY RISK ASSESSMENT
NUMERIC SCALED QUALITATIVE ASSESSMENT.
VALUES ABOVE 10 ARE PROMOTED TO RED.
VALUES BELOW 10 ARE PROMOTED TO GREEN.
RED RISKS = UNACCPTABLE.
GREEN RISKS = ACCEPTABLE.
ACCEPTING RISKS DOESN’T MEAN IGNORING
.THEM
60. COMPULSORY MEASURES TO BE TAKEN
AGAINST SAFETY RISKS.
USING GUARD RAILS ON EDGES OF BUILDING AND FLOOR OPENINGS.
USING SAFETY NETS TO PREVENT FROM FALLING FROM HEIGHTS.
USE SCAFFOLDING WITH COVERING NETS TO AVOID FALL OF OBJECTS.
PROVIDING ADEQUATE TRAINING AND SUPERVISION FOR WORKERS, TO PREVENT ANY MISTAKES THAT MAY RESULT FROM IGNORANT
OR IRRESPONSIBLE ACTS.
ESTABLISHING EMERGENCY PLANNING PROCEDURES, INCLUDING FIRST AID.
KEEP CONTROL OF SITE ACCESSIBILITY, BY MAKING SPECIFIC GUARDED AND CONTROLLED ENTRANCES AND EXITS, SO ONLY
AUTHORIZED STAFF CAN GET THROUGH THE GATES.
PROVIDING PPE, CLOTHING AND SIGNS, BUT THEY SHALL BE USED AS LAST RESORT AFTER USING EXPLORING ALL THE HAZARD
ELIMINATION METHODS.