liew yong seong b.eng (hons.), m.eng, mies, msss 1 28 dec 2011 © 2011 se cad software. all rights...

© 2011 SE CAD Software. All Rights Reserved 1

Computerized Precast Building Design using SE

CADLiew Yong Seong

B.Eng (Hons.), M.Eng, MIES, MSSS

28 Dec 2011

© 2011 SE CAD Software. All Rights Reserved 2

Mr. Liew Yong Seong graduated with a Bachelor and Master Degree in Structural Engineering. He is currently the technical director of Advance Contech (S) Pte. Ltd. He supports and trains clients from local and international consulting and construction firms in using advanced engineering software solutions to streamline design and construction processes of high-rise, reinforced concrete and steel structures with or without post-tensioning and precast components. Over the years of support and training, he has assisted many engineers in solving and fixing modelling and design problems. He is also currently the Regional Representative of prestigious engineering software developers, Forum8 (Japan), RISA Technology (USA) and SE CAD Software -- the world first integrated Analysis, Design and Detailing System for Precast Building Structures. 

About the speaker

28 Dec 2011

© 2011 SE CAD Software. All Rights Reserved 3

0900-1000 Registration / Breakfast

1000-1030 Introduction by Innovacia

1030-1230 Background/Designing PC Project using SE CAD/Examples [2 hours]

1230-0200 Lunch Break

0200-0300 (cont'd) [1 hour]

0300-0430 Detailing using TiffinCAD / IBS Score using TiffinTOOLS-IBS [1.5 hours]

0430 Tea/End

Course Outline

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Introduction to SE CAD Features and Strength of SE CAD SE CAD Modules Overview PMCAD : Model Building SATWE : Finite Element Analysis and Design Cages and Precast Component Detailing

◦ Slab, Beam, Column, Wall Q&A

Outline

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Introduction to SE CAD

a brief history of time

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Introduction to SE CAD : History

streamline construction processes to meet the challenges ahead with the use of advanced technologies

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In-situ RC construction

Dependent of foreign labors Slow and weather dependent Wastage of materials Difficult quality control Environmental issue Non-systematic and messy

>> Solution : use of prefabrication (precast) technology!

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Use of conventional software and structural system hinder the use of prefab and precast technology

Does Not promote standardization Error prone Difficult to check and archive data

The road-blocks

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Conventional RC design and detailing : The designers and checkers night mare! Tonnes of drawings to be drawn, checked

and archived

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Develop an integrated analysis, design and detailing software

to ride on HDB prefabricated building system databases

and standard detailingsto automate drawings

10

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Why SE CAD?

Cost saving

Reduction in manpower per project

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Why SE CAD?

Proven

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Why SE CAD?

Unique• Incorporated the HDB PRECAST & PREFAB

DESIGN AND DETAILING DATABASE

• Complete one stop solution from PILE LAYOUTto SUPER STRUCTURE design and detailing

• Design and detail for both IN-SITU and PRECAST structural elements

• Detail using PREFAB CAGE SYSTEM

• Design for PRECAST JOINTS

• QUANTITY TAKE-OFF

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Features & StrengthGive me a stick long enough and a pivot and I shall move the

world

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Industrial Precast Building◦ Factories, Warehouses, Plants etc.◦ Mainly Function-oriented◦ Long/Ultra-long spans◦ Corbels◦ Pre-stressed T-beam, double-T etc. (simply supported,

semi-rigid connection)◦ Proprietary connector

Residential Precast Building◦ HDB flats, quarters, schools, offices◦ Function-and-aesthetic-oriented◦ Short/Mid spans

Type of Precast Building Systems

SE CAD

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Low-rise (bungalow) to high-rise (50 or more stories)

Beam of short to medium span length (4 ~ 8 meters)

Floor : Beam-Slab system Lateral resistance to wind provided by

shear walls + columns & beam-column frame stiffness

Full or hybrid system of in-situ and precast

Residential Precast Building

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Residential Precast Building

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Building Precast System

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Modules Overviewpractice what you preach

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SE CAD Modules

• PMCAD• SATWE• SWALL• PILECAP• QUANTITY

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• Create Model• Convert to Precast• Fine tuning & checking

Modeling in PMCAD

• Analysis settings• Running analysis and design• Evaluating building performance

Analysis using

SATWE

• Slab design and detailing• Beam design and detailing• Column design and detailing• Wall design and detailing• Pile foundation layout• Quantity Take-off

Design & Detailing with

PMCAD , SATWE,

SWALL and PILECAP

Workflow

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Model building in PMCAD

build something out of nothing

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PMCAD Sub-modules

PMCAD-1, PMCAD-2, PMCAD-3

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PMCAD-1 the 3D model builder

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Hierarchical menu system

Root Level Level 1 Level 2

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PMCAD-1 Typical Workflow

Establish Grid Lines

Assign Beams, Walls, Columns Apply Loadings Assembling

Floors

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Table Analogy

Beam/Slab

Column/Wall

Grid Lines

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Establish Grid Lines

Demo

AutoCAD-like commands, but more advanced

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Assign Beam

B E A M Analysis : Arbitrary ShapeDesign : Rectangular

Demo28 Dec 2011

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Assign Wall

W A L LAnalysis : Arbitrary ShapeDesign : Arbitrary Shape

Demo28 Dec 2011

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Assign Column

C O L U M NAnalysis : Arbitrary ShapeDesign : Rectangular, L- & T-

Demo28 Dec 2011

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Apply Loading

Use Global Floor Load to safe-guard modeling error

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Apply Loading - Beam

Point, Line, Trapezoidal Loads

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Apply Loading - Column

Point, Line Loads

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Apply Loading - Wall

Point, Line, Trapezoidal Loads

Demo28 Dec 2011

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Typical Floor Concept◦ Rapid modification, speedy

checking

Multiple Floor Edit / Copy

Assemble Floor

Import Project ◦ Parallel workflow (for large

team)

Story Editing

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Roof top (2.8m)

Void deck (3.6m)

N x Dwellings (2.8m)

Foundation (2.8m)

Typical 4

Typical 3

Typical 2

Typical 1

Typical Floor Concept

Demo : Duplicate & Modify Typical Floors28 Dec 2011

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Multi-floor Edit / Copy

Changes are inevitable in structural modelling

Easy to handle modification across typical floors

Demo28 Dec 2011

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Assemble Floor

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Import Project

Base Unit + Import Unit = Block

BLOCK 1

AA

A

AAE

DDC C

CC

B B

BLOCK 2

E

CC CC

B B

DD

AA AAA

Demo28 Dec 2011

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PMCAD-2 typical workflow

Cantilever slab Slab opening Slab drop Slab thickness

Convert in-situ to precast

slab

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Cantilever slab

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Slab opening, drop, thickness

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Precast planks arrangement

Precast slab plankDemo

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PMCAD-3 typical workflow

Adjust Dead Load on Slab Adjust Live Load on Slab Adjust Loading Distribution

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Dead & Live Load on Slab

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Loading Distribution

Demo28 Dec 2011

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Check, Draw and Verify

PMCAD-4, -5, -6

Demo28 Dec 2011

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Finite Element Analysis

divide and conquer

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• Create Model• Convert to Precast• Fine tuning & checking

Modeling in PMCAD

• Analysis settings• Running analysis and design• Evaluating building performance

Analysis using

SATWE

• Slab design and detailing• Beam design and detailing• Column design and detailing• Wall design and detailing• Pile foundation layout• Quantity Take-off

Design & Detailing with

PMCAD , SATWE,

SWALL and PILECAP

Workflow

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SATWE-1 typical workflow

Populate and check data files

Column effective length

Beam and column hinges, rigid vs. flexible diaphragms

General analysis setting

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General analysis setting

Many interesting stuffs under the hood, especially if your are analyzing and designing high-rise buildings!

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Source: Advance Contech technical note on high rise building design and analysis

Staged construction analysis

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Load patterning

A feature that most 3D finite element structural design software lack or cannot properly perform!

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Beam & Colum hinges, rigid vs. flexible diaphragms

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Column effective length

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Populate and check data files

Demo28 Dec 2011

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Cages and Precast Component Detailing

an art more than a science

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• Create Model• Convert to Precast• Fine tuning & checking

Modeling in PMCAD

• Analysis settings• Running analysis and design• Evaluating building performance

Analysis using

SATWE

• Slab design and detailing• Beam design and detailing• Column design and detailing• Wall design and detailing• Pile foundation layout• Quantity Take-off

Design & Detailing with

PMCAD , SATWE,

SWALL and PILECAP

Workflow

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Detailing

Beam

Column

Pile LayoutSlab

Wall

BEAM & COLUMN CAGES

MESHES

MESHES

PLANKS

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CAGE CODES

To maximize repetition throughstandardization & serialization

Structural Steel Better standardization Steel Database Universal Naming Convention Efficient Reference, Design, Checking, and Logistics

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BEAM CAGE CODE

J/U/P 23 6 1 V

Cage series

Width of Beam

Depth of Beam

Ref. No. or Ref. No. with alphabet indicating type of stirrups

Ref. No. indicating type of main reinf.

Suffix

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Cage Codes+ Reference Drawings

Demo : Beam, Column Detailing28 Dec 2011

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Slab Design and Shop Drawing

Demo28 Dec 2011

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Wall Design & Detailing

RC, Shear Wall & Shear Column using Deep Beam Theory

Demo28 Dec 2011

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Pile Layout

Precast PileBored PileMicro PileSteel Pile

Demo28 Dec 2011

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Reinforcement Weight Concrete Volume

Quantity Take-off

Demo28 Dec 2011

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Questions ?

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Contact us www.secad-software.com

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© 2011 SE CAD Software. All Rights Reserved

THANK YOU!

28 Dec 2011