12th Week Day 4~5

Pile Loading Check and Grouping, Finalized every thing and send to Shared drive of company for future reference of other employees

12th Week Day 3

Site Visit
Went to SKVE Serdang for a shell station site.

Impressive building works and thumbs up for the safety features.

Note : Total day required to build a shell statin from scrap is 72 days and required money is around 3~4 Mill

12th Week Day 1~2

Column Checkings and Regrouping

11th Week Extra Info

From SKM:

SKM has purchased the very latest in mobile 3D Laser Scanning Technology. The Riegl VMX-250 mobile laser scanner, which can be mounted on the roof of a vehicle, is used for a variety of purposes such as the mapping of roadways and rail corridors, waterways, mine sites, ports and harbours, as well as extended urban areas. Only available to SKM clients in Australia at this time, the technology has revolutionised the surveying profession with the means to capture data more rapidly, accurately and safely. For further information, contact Leigh Finlay in the Sydney office.

Woooo..... Nice technology... too bad it isn't in Malaysia. Hence, I don't hold the chance to play with this big toy!!

11th Week Day 5

Done some column checking on the drawing as the orientation of pile cap should be in correct direction with the column to get optimum distribution of both forces and moments.

For pile cap with 2 piles, we should always put the pile cap parallel with the column to ensure both the piles will receive equal forces from the column.

For Pile cap with 3 Piles, we should put the orientation of pile cap as below because the C.G. of the Force will be at the C.G. of the triangle, giving more stable distribution of forces.

For Pile cap with 4 piles or more, We will put the pile cap according to the pile dimension , whichever longer will go with the longer side while whichever shorter will goes for the shorter side

11th Week Day 4

There is a Structural Section Meeting today and as usual, alll the sub sections of structural section will update others on their current status.

The intersting thing about this Meeting is that they have a very big ?LCD? touch screen that you can use a special marker pen to draw and erase as you wish. The LCD is at the size of a white board and touchscreen features makes it a real interesting gadget to be used of.

Other than meeting, today is the further study of Pile Cap to understand more about punching shear.

11th Week Day 3

There's a talk by Sean Poh today regarding the secondment to Australia Brisbane for Mining works.

SKM been actively engaged in tender of mining works in Australia and inorder to gain some profits from this sector, SKM Malaysia have been sending peoples to SKM Aussie to get the skill and experienced required before getting into the real job.

The alk is pretty interesting showing the new technology, Involvement in mining works and also the life in Australia.

He even showed an online website that can calculate the cultural different between you and the norms of that country. This is quite useful as you seriously do not want to offend any superiors or colleague when having your training there.

11th Week Day 1~2

Study Pile Cap Design
Used Reinforced Concrete DEsign by /T .J. MacGinley

A pile cap is a thick concrete mat that rests on piles. It is part of the Foundation of a building, typically a multi-storey building, structure or heavy equipment. The pile cap distributes the load from the pillars, or piers, to the Deep foundation. A similar structure to a pile cap is a "raft", which is a foundation floor resting directly on bedrock.

The problem with designing pile cap is that the examples for pile can usually come in even number.

In construction, there will be pile cap with 3 piles beneath it. The distribution of forces and moment induced will be different.

10th Week Day 3~5

Helped Ms. Inez in checking of markings schedule and column markings.
o Check the drawing to match the value in drawing with given data.
o Check the label of column to match with the label a floor below it.
o Create an excel spreadsheet to ease up the checking and data finding.

Above is the formulised excel spreadsheet screenshot

For the excel spreadsheet I have created, I have to include recommendations to client, such as Revision required on Pile Group Design, Recommendation Length and Reduction of length.

According to a senior engineer, we cannot ask them to change their pile as we are only consultant and whether to use our recommendation is up to the judging of developer. The reason for this is because if we force them to use certain length of pile, the responsibility will be ours if the foundation fails.

10th Week Day 1~2

1) Continuation of guardhouse design from Ms. Shiao Teng.
o Column design was done this week and I have learnt that the design of column relies on a simple formula, which is :

N = 0.35Fcu Ac + 0.7Fy Asc

Where:
N = Total Axial Force on the column
Fcu = Concrete Compressive Strength
Fy = Concrete Steel strength
Ac = Concrete Area
As = Steel Area

o The spacing of shear links cannot be more than 12 times the diameter of the reinforcement bars.



2) Slab Design of guard house using MTM.
The Output, A8, B5, etc is the label for mesh design require for the slab.

· The solid line is the bottom reinforcement for the slab

· The dotted line is the top reinforcement for the slab

9th Week Day 1~5

Learned how to design guardhouse from Ms. Shiao Teng.

o To design a guard house, we need to check criteria as below:
§ Usage of guard house : Determining the loading
§ Check the architectural drawing and check the dimension of beams and columns proposed in architectural drawing.
§ Check the continuity of beams.

Overview of Guardhouse Plan

Helped Ms.Inez in checking of pile markings.

o Check the loading of pile after adjustment in borehole log.
o The borehole log will determine the SPT-N of the pile which is how many blows required by the pile driver into 1.5m of soil. Usually, N above 50 is not recommended as it will cause the pile head to fail.
o The SPT-N usually get higher when we go deeper but sometimes the SPT-N will get high and suddenly drops again. This is due to existence of hard soil layer in between of normal soil. Hence, when going through the hard should, more blows is required.

8th Week Day 5

Software Study : PROKON.

o This software is all-rounder software that can do modelling and analyse the structure (Quite similar to StaadPRO). PROKON have more interactive features that allow user to visualize the actual elements used in structure and the design is more accurate as they have different tabs for various types of design required by engineers.

Picture above shows the modelling of structure done by me.

From the figure above, we can see that PROKON is capable of modelling and also analyse a structure. PROKON can calculate:
o Deflections
o Support Reactions
o Beam Forces
o Shell (or Slab) Moment and Forces
o Moment on Beam
o Moment on Shell(or Slab)

8th Week Day 4

Revit Software Demonstration.

The Revit Building Maker feature provides a more seamless way to turn conceptual forms into functional designs. Select faces to generate walls, roofs, floors, and curtain systems. Use tools to extract important information about your building such as surface area or volume per floor. Conceptual forms may be created natively in Autodesk Revit Architecture or imported from applications such as AutoCAD®, form-Z, Rhino, Google® SketchUp®, or other ACIS- or NURBS-based applications into Autodesk Revit Architecture software as mass objects

Website : http://usa.autodesk.com/adsk/servlet/pc/index?id=3781831&siteID=123112

8th Week Day 2~3

Advance learning of Excel VBA

Learning of VBA Language

Learned how to use VBA to create user interface

Created an excel file to aid user in calculating forces acting on beam

8th Week Day 1

Self Study of VBA for Excel

Microsoft Excel have an extension software which is called VBA (Visual Basic)

which allows user to make their own formula and function through Visual Basic Language.

To enter VBA mode, Just press Alt+F11 in Excel.

7th Week 1~5th day

Nothing much for this Week,
Self Study RC Wall, Steel Struc, Excel VBA

6th Week Day 3~5

Pile Check

Labelling of pile num and group on plan to ease up inspection work

Check the working load on pile

( Different group of piles have different loading, EG 250 sized pile might have capacity of 1800 while 300 have capacity of 2500. Then, according to the best ratio of strength and number of pile, we can determine the pile that we want to use accordingly)

Stump Marking

Check Drawing Detailing

Some drawings might not been drawn properly and the value or arrangement might be wrong, so it will be consultant work to check it.

Check Design calculation of pile cap whether the calculation method is correct and the correctness of its answer.

6th Week Day 1 ~ 2

Continuation of Column marking.
5 Floors on 1st day
6 other floors on 2nd day

Learned :
Column loading must be reasonable with the load imposed and area which it includes.
to prevent any errors or miscalculation, we can double check the loading or compare the loading with the column nearby as the load transferred won't be much different for the same coverage of area.

5th Week Day 5

Task for this day is to Do Columns Marking for Entire Block of 12 floors.

Things done in morning:

1. Check all the Columns in all floors
2. Label all the Columns in Ground floor in different layer to ease up duplicating of label for usage later on. (Total of 447 ++columns labeled)
3. As most of the column are interconnected with the floor above, The labelling of column will be same as the column below, which we can copy the label of the column named below to the floor above as long as it is at the some coordinate.
4. Noted that the Modelling and Keyplan might not be the same for Architectural drawing and Engineering Drawing as Architectural Drawing tends to draw the Viewing Sight on plan view while engineering drawing will be on the cross section of that floor.

Things Done in Afternoon ~ Offwork:

1. Continue do the Labelling of Columns and then do the printings of all 12 floors on A2 size paper.
2. Acquired the loading on each column for all the floors from Inez
3. Print out the loading on column for all floors for labelling of forces on the floor plan.
4. Labelling of forces on floor plan will be done next week as time id not enough for all the biddings.

5th Week Day 4

In order to design RC Retaining wall, Eurocode, EC7 have to be studied to check the difference between BS8002 and EC7.

As a conclusion, the Difference of BS and EC is that BS is more conservative on the Safety factor while EC is more conservative on the Safety factor impose on the loading.
Hence, we cannot use the factored loading by EC for the BS design as it will cause over-conservative design.

Designed a RC retaining wall based on BS8002 and checked using RCC Spreadsheet.

5th Week Day 3

I was given a RCC Spreadsheet to do the RC Retaining Wall design which by any means will reduce the total design time as I do not have to do all the calculations manuallly.

However, before I can use the spreadsheet, I have to verify the accuracy and precision of the spreadsheet.

By using the formula and steps refered, I manage to find differences between RCC Spreadsheet and manual calculations.

As a result:
RCC Spreadsheet was more precise as it takes into consideration of all factors including:
Buoyancy Force (Cause by Water Level above the base of RC retaining Wall)
Cohesion force of base while calculating the Base resisting force for Sliding Check(Can be cancelled to be more conservative)

As a conclusion, RCC spreadsheet can be used to design RC retaining wall

5th Week Day 2

Study actual works of steel design and done some welding connection design as practice.

Work of Steel Design refered : Designer : Leena, Checker : Chen


Study the theory of RC Retaining Wall.
BS8002 using internet

Design of RC Retaining wall take into consideration of:

Sliding Control
- The Horizontal Force must be less than the resisting force of Friction and Cohesion(Cohesion might not be taken due to conservative reasons, by adding a key will result in higher resisting force yielded)

Overturning Control
By taking the moment at toe(Tip angle at bottom of retaining wall face), we will calculate the total clockwise and anticlockwise moment. The moment that will cause the RC Retaining wall to bend forward at the face is the overturning moment and the countering moment must be higher than the overturning moment by certain FOS.

Bearing Capacity Control
The Bearing capacity is the strength of soil holding the total vertical force exerted by the RC walll which is cause by the Weight of soil, Surcharge and also the weight of RC walll itself. The Bearing Capacity of the soil can be calculated using EC 7 (Eurocode) or using BS. The bearing Capacity must be higher than the total vertical force by certain FOS. (Around 2~3 according to Soil institution)

5th Week Day 1

Learn Welding Connection of Steel Design

Reference : BS5950

Welding Type : Fillet Weld
Full Butt Weld

- Fillet weld only connects the surface of the steel area and strength is taken by using Throat size , wt. While full butt weld will contribute in full strength of steel by taking strength of steel as it's full capacity of strength. Welding rod must comply with the grade of steel (Refer BS5950)

4th Week Day 4~5

Design Ramp for Office Block

Done an Excel file to locate beams in acad file.

Create New Excel file to ease up calculations for loading.

4th Week Day 2~3

Design Beam for Kiara Hills Condo - Block 6 Using MTM and Excel Sheet

Designed

L21-B20B

L21-B25A

L21-B35A

L21-B40A

L21-B40Aii
L21-B49i
L21-B49ii
L21-B50

L21-B51

Do checking of Beam on the dimension and design.

Design Beam for Terrace House

Designed only B1a and B16

Attended Safety Talk oraganized by SKM.

4th Week Day 1

Design Ramp for MB06057 (Continue from last week)

*Finished doing the job given on this day*

3rd Week Day 4~5

Learned Design of ramp through Inez.

Design external ramp for Proj MB06057

Design of ramp was done using : MTM and Excel sheet for checking of bar spacing and Percentage of steel

*Note - LL of Ramp = 20kN/m² if usage by firetruck was considered.

As = M/ 0.95 Fy Z

3rd Week Day 3

Learn the theory for Design of Retaining wall

Learn the basic of design of Retaining wall using MTM

3rd Week Day 2

Medical Leave Due to Flu

3rd Week Day 1

Determine the Loading for slab of Ground floor
Design Column for Ground Floor

2nd Week Day 4~5

Study Theory for design of Stair Slab using MacGinley and Mosley
Revision on Previous learnings of Design

Design of Beam
Design of Slab
Design of Column

2nd Week Day 1~3

Learn Column Design
Learned Loading on Column using Area Method
Created an Excel File to ease up calculation
Study BS8110 for column design requirement
Study Macginley and W.H.Mosley for design methods

1st Week Day 4~5

Learn Design of Slab theoritically using W.H. Mosley - Reinforced Concrete Design.

Learned design of Slab using MTM with 485 wire mesh.
Sketched the cross section for certain floor (1st floor)

Steps Required for Slab Design
Determine Loading Type and total loading
Find perimeter of loading area for punching shear check
Check punching shear using v = v / ud
Design shear Link
As = (v-vc) ud/095fy

For Loading, Check from BS6399 Part 1

1st Week Day 3

Continue checking of beams

Checking of Beams Included:

Total Reinforcement Required : Compression and Tension
Total Deflection Of Beam
Cracking Check
Adequacy of Steel Bars
Requirement and Size of Shear Reinforcement

Received new ID and Computer Account from SKM

1st Week Day 2

Practice Design of Beam using BS 8110 Part 1
Learn to use MTM and Acad to design beam

1st Week Day 1

Placement of Seat, Introduction of staffs by Ms. Janet
Staffs Inclusive of :
MBIF
EXXONMOBIL
SHELL

Review Learnings of Beams

IT - First Day

Yesterday was my First day for industrial Training.
However, my Wireless Adapter was in a a mess and i couldn't write a blog in time.


Oh, Back to IT

I'm Doing my Industrial Training in Sinclair Knight Merz, in short, SKM now. You can view the company's profile here http://www.skmconsulting.com/

I will be doing my internship under Structural Department leaded by Mr. Karthe which is a very friendly and nice person. The person incharge of my training is Ms. Shiao Teng who specialized in building designs.

For the First day, I've learn how to do checking on beams using MTM, which is an in-house software of SKM Sdn Bhd.


That's all for this post, will post again real soon!

Industrial Training Usage

Herlo, Testing.....

*Warning*
A blog for Industrial training have been created