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h4. Structures

Structures is a new 

Structures

Structures is a new sub-team

...

of

...

Cornell

...

AguaClara.

...

The

...

goal

...

of

...

the

...

group

...

is

...

to

...

introduce

...

structural

...

analysis

...

into

...

the

...

AguaClara

...

design

...

process.

...

In

...

the

...

past,

...

AguaClara

...

has

...

not

...

been

...

responsible

...

for

...

the

...

structural

...

design

...

of

...

the

...

treatment

...

plants.

...

We

...

are

...

evaluating

...

the

...

structural

...

design

...

of

...

the

...

plant

...

and

...

providing

...

guidance

...

to

...

improve

...

seismic

...

protection.

...

We

...

are

...

also

...

assessing

...

the

...

merits

...

of

...

rectangular

...

vs.

...

circular

...

tanks

...

when

...

considering

...

the

...

Stacked

...

Rapid

...

Sand

...

Filters.

...

Clay

...

brick,

...

re-bar,

...

mortar,

...

and

...

plaster

...

are

...

used

...

to

...

created

...

waterproof

...

tank

...

walls,

...

while

...

poured

...

reinforced

...

concrete

...

is

...

used

...

for

...

the

...

columns

...

adding

...

structural

...

support

...

to

...

the

...

tanks.

...

The

...

Structure

...

team

...

is

...

new

...

to

...

the

...

AguaClara

...

project.

...

Professor

...

Weber-Shirk

...

created

...

the

...

team

...

this

...

semester

...

to

...

provide

...

structural

...

analysis

...

for

...

the

...

growing

...

number

...

of

...

Aguaclara

...

water

...

treatment

...

plants.

...

Currently,

...

the

...

automated

...

design

...

tool

...

does

...

not

...

provide

...

structural

...

designs

...

for

...

the

...

tanks.

...

Our

...

ultimate

...

goal

...

is

...

to

...

automate

...

the

...

design

...

of

...

the

...

tanks

...

including

...

column

...

spacing,

...

column

...

sizing,

...

and

...

rebar

...

use

...

when

...

given

...

the

...

required

...

tank

...

height,

...

width,

...

and

...

length.

...

The

...

team

...

focused

...

on

...

organizing

...

data

...

and

...

resources

...

in

...

the

...

form

...

of

...

e-mail

...

correspondences

...

and

...

meetings

...

with

...

Cornell

...

University

...

professors

...

to

...

decide

...

on

...

the

...

first

...

problem

...

to

...

address.

...

Following

...

the

...

meetings,

...

the

...

team

...

decided

...

to

...

analyze

...

the

...

structural

...

capabilities

...

for

...

the

...

columns

...

and

...

walls

...

using

...

the

...

specifications

...

from

...

the

...

Alauca

...

plant.

...

We

...

have

...

been

...

working

...

in

...

conjunction

...

with

...

Dan

...

Smith

...

and

...

Santiago

...

Garcia

...

to

...

obtain

...

relevant

...

information

...

about

...

the

...

AguaClara

...

plants.

...

Overview

...

of

...

our

...

Work

...

Our

...

main

...

objective

...

we

...

wished

...

to

...

accomplish

...

this

...

semester

...

was

...

to

...

create

...

a

...

means

...

of

...

automating

...

the

...

design

...

of

...

the

...

columns

...

and

...

walls

...

for

...

the

...

design

...

tool.

...

We

...

began

...

this

...

work

...

by

...

analyzing

...

the

...

structural

...

capabilities

...

of

...

the

...

columns

...

and

...

walls

...

for

...

the

...

Alauca

...

plant.

...


There

...

are

...

three

...

different

...

load

...

cases

...

that

...

guide

...

the

...

design

...

of

...

the

...

columns

...

and

...

walls

...

of

...

the

...

tank.

...

The

...

first

...

case

...

assumed

...

that

...

the

...

tank

...

walls

...

were

...

supported

...

by

...

the

...

surrounding

...

backfill.

...

The

...

second

...

case

...

assumed

...

no

...

support

...

from

...

this

...

backfill.

...

The

...

third

...

case

...

analyzed

...

the

...

structural

...

importance

...

of

...

the

...

rubble

...

which

...

lies

...

at

...

the

...

base

...

of

...

the

...

sedimentation

...

tank.

...

For

...

our

...

analysis

...

of

...

the

...

walls,

...

we

...

modeled

...

them

...

as

...

closely

...

spaced

...

columns.

...

The

...

plans

...

for

...

the

...

Alauca

...

plant

...

show

...

vertical

...

rebar

...

that

...

runs

...

through

...

these

...

walls

...

will

...

add

...

flexural

...

support.

...

By

...

modeling

...

the

...

walls

...

as

...

columns

...

we

...

accounted

...

for

...

this

...

vertical

...

rebar.

...

Modeling

...

the

...

walls

...

as

...

a

...

combination

...

of

...

individual

...

columns

...

also

...

allowed

...

us

...

to

...

use

...

the

...

same

...

tools

...

and

...

procedures

...

that

...

we

...

used

...

for

...

the

...

analysis

...

of

...

the

...

columns.

...

We

...

set

...

the

...

moment

...

at

...

initial

...

cracking

...

as

...

our

...

first

...

failure

...

moment.

...

We

...

determined

...

this

...

moment

...

by

...

using

...

the

...

Transformed

...

Moment

...

of

...

Inertia

...

method.

...

We

...

also

...

wanted

...

to

...

know

...

the

...

moment

...

that

...

would

...

render

...

the

...

walls

...

and

...

columns

...

to

...

no

...

longer

...

be

...

structurally

...

intact.

...

This

...

would

...

be

...

the

...

largest

...

moment

...

that

...

these

...

walls

...

and

...

columns

...

could

...

experience

...

before

...

ultimate

...

failure.

...

We

...

believed

...

that

...

this

...

value

...

would

...

be

...

of

...

importance

...

for

...

future

...

analyses

...

which

...

would

...

incorporate

...

earthquake

...

conditions.

...

For

...

this

...

ultimate

...

failure

...

analysis,

...

we

...

used

...

the

...

Column

...

Interaction

...

Diagram.

...

This

...

method

...

plots

...

the

...

area

...

of

...

all

...

axial

...

load

...

and

...

moment

...

cases

...

that

...

a

...

column

...

would

...

be

...

able

...

to

...

support

...

safely.

...

A

...

full

...

report

...

with

...

calculations

...

and

...

conclusions

...

can

...

be

...

found

...

in

...

our

...

Structures

...

Team

...

Final

...

Report

...

Spring

...

2011

...

document.

...

We

...

also

...

explored

...

how

...

changing

...

key

...

variables

...

such

...

as

...

cover

...

depth,

...

rebar

...

size,

...

and

...

strength

...

properties

...

of

...

the

...

materials

...

used

...

affected

...

the

...

moment

...

capacity

...

of

...

the

...

walls

...

and

...

columns.

...

All

...

the

...

documents

...

used

...

in

...

our

...

analysis

...

this

...

semester

...

are

...

found

...

under

...

the

...

"Documents"

...

section.

Section
Column
Members

Kester Wilkening

Column
Documents

 

Challenges

Tasks

Teach-In

Presentation

Final Report

Summer '11

Image Added

 

 

 

Image Added

Spring '11

Image Added

Image Added

Image Added

Image Added

Image Added

Column Design Spreadsheet
Flexural Analysis Spreadsheet

MathCAD Files

Moment Due to Water Pressure MathCAD
Column Interaction Diagram MathCAD
Transformed Moment Method MathCAD

Moment Capacity vs. Column Variables Documents

Cover Effects
Beta1 Values
Rebar Effects
Column Dimension Effects

Column
Past Research

This is a new team with no past research.

{section} {column} h6. Members [Kester Wilkening|akw46] {column} {column} h6. Documents | | Challenges | Tasks | Teach-In | Presentation | Final Report | | Summer '11 | [!Research^word_icon.jpeg|height=25!|^ StructuresTeamChallenges.doc] | | | | [!Research^pdf_icon.jpg|height=25!|^ structures.pdf] | | Spring '11 | [!Research^word_icon.jpeg|height=25!|^ StructuresTeamChallengesSpring2011.doc] | [!Research^word_icon.jpeg|height=25!|^ StructuresTeamTasksSpring2011.doc] | [!Research^ppt_icon.jpg|height=25!|^ StructuresTeamTeachInSpring2011.ppt] | [!Research^ppt_icon.jpg|height=25!|^ StructuresTeamPresentationSpring2011.ppt] | [!Research^word_icon.jpeg|height=25!|^ StructuresTeamFinalReportSpring2011.doc] | [Column Design Spreadsheet|Structures^Column Design.xls] [Flexural Analysis Spreadsheet|Structures^MasonryWalls.xlsx] h6. MathCAD Files [Moment Due to Water Pressure MathCAD |Structures^Moment Due to Water Pressure.xmcd] [Column Interaction Diagram MathCAD |Structures^Column Interaction.xmcd] [Transformed Moment Method MathCAD |Structures^Transform Moment Method.xmcd] h6. Moment Capacity vs. Column Variables Documents [Cover Effects |Structures^Cover.xls] [Beta1 Values |Structures^beta1.xls] [Rebar Effects |Structures^rebar.xlsx] [Column Dimension Effects|Structures^width.xlsx] {column} {column} h6. Past Research This is a new team with no past research. {column} {section}