2018 mississippi summer transportation institute at ......2018 mississippi summer transportation...

2018 Mississippi Summer Transportation Institute (MSTI) at Jackson State University

ii

DISCLAIMER The contents of this report reflect the views of the authors, who are responsible for the facts and the accuracy of the information presented herein. This document is disseminated in the interest of information exchange. The report is funded, partially or entirely, by a grant from the U.S. Department of Transportation’s University Transportation Centers Program. However, the U.S. Government assumes no liability for the contents or use thereof.

ACKNOWLEDGEMENT OF SPONSORSHIP AND STAKEHOLDERS This work was sponsored by a grant from the Southeastern Transportation Research, Innovation, Development, and Education Center (STRIDE). The program also get support from Mississippi Department of Transportation (MDOT), Federal Highway Administration (FHWA), and Department of Civil and Environmental Engineering at Jackson State University.

Funding Agreement Number - 69A3551747104


iii

LIST OF AUTHORS

Lead PI:

Robert W. Whalin, Ph.D., P.E., D.CE Education Director, Coastal Resilience Center Professor of Civil and Environmental Engineering Jackson State University [email protected] ORCID 0000-0002-8712-9434

Additional Researchers:

Kejun Wen, Ph.D. Assistant Professor of Civil and Environmental Engineering Jackson State University [email protected] ORCID 0000-0003-3124-1424


iv

TABLE OF CONTENTS DISCLAIMER......................................................................................................................................ii

ACKNOWLEDGEMENT OF SPONSORSHIP AND STAKEHOLDERS ......................................................ii

LIST OF AUTHORS ............................................................................................................................ iii

LIST OF FIGURES ............................................................................................................................... v

LIST OF TABLES ................................................................................................................................ vi

ABSTRACT ....................................................................................................................................... vii

EXECUTIVE SUMMARY .................................................................................................................. viii

1.0 INTRODUCTION ......................................................................................................................... 9

2.0 MISSISSIPPI SUMMER TRANSPORTATION INSTITUTE (MSTI) EDUCATIONAL PROGRAM ...... 10

2.1 Narrative ............................................................................................................................. 10

2.2 Collaborations ..................................................................................................................... 20

2.3 Impacts ................................................................................................................................ 20

2.4 Recommendations .............................................................................................................. 21

3.0 CONCLUSION ........................................................................................................................... 21

4.0 ATTACHMENTS ........................................................................................................................ 21

a. MSTI Presentation – Introduction to Bridge Engineering .................................................. 21


v

LIST OF FIGURES Figure 1. Faculty members from Department of Civil and Environmental Engineering…………….15 Figure 2. Experts form MDOT…………………………………………………………………………………………………..16 Figure 3. Lab tests in MDOT……………………………………………………………………………………………………..17 Figure 4. Lab tests in JSU………………………………………………………………………………………………………….18 Figure 5. Field Trip to MDOT…………………………………………………………………………………………………….18 Figure 6. Students activities a) Bridge Group; b) Traffic Group; c) Simulation Result of the Traffic Group………………………………………………………………………………………………………………………………………19


vi

LIST OF TABLES Table 1. Agenda for MSTI…………………………………………………………………………………………………………11 Table 2. Student Enrollment in the 2018 MSTI Program…..………………………………………………………13


vii

ABSTRACT The Mississippi Summer Transportation Institute (MSTI) aimed to introduce a diverse group of motivated high school students to the transportation industry. This three-week program was held at Jackson State University’s Engineering Building in Jackson, Mississippi. The Inter-modal Advisory Committee recruited thirty rising 9th-12th grade students for the residential MSTI program. The high school students participated in academic and extra-curricular activities designed to improve their Science, Technology, Engineering, and Mathematics (STEM) knowledge and leadership skills. This residential program provided a well-balanced curriculum and an environment that was conducive to both academic and personal development, promoted interpersonal skills and exposed students to real-world transportation issues. These were accomplished through a series of classroom activities, field trips and recreational activities. Robot competition, traffic design, and bridge competitions were included to enhance students’ design ability and teamwork skills. An evening coordinator organized in-class scientific projects, including Eiffel tower construction, hanging in duct tape, balsa bridge glider, egg drop, and paper tower competitions.

Keywords: summer camp, transportation engineering, STEM, high school, Summer Transportation Institute


viii

EXECUTIVE SUMMARY The Mississippi Summer Transportation Institute (MSTI) program engaged high school students in academic and extra-curricular activities designed to improve their Science, Technology, Engineering, and Mathematics (STEM) knowledge and leadership skills. The goals of the program were for students to 1) have a more comprehensive understanding of transportation-related topics and 2) be more interested in transportation-related majors in their future academic careers. By giving students an opportunity to study the STEM related topics before going to college, they will have greater familiarity and confidence in the STEM profession in the future.


9

1.0 INTRODUCTION Safe and efficient transportation systems are essential to our modern lives. These systems require a sustainable supply of an educated and competent workforce for smooth functioning in the future. To respond to this, the goal of new high school graduation requirements is to ensure that more students leave high school well-prepared for college (advanced training or a two- or four- year degree program) or high-skill, well-paid jobs. To fill future positions in the U.S. Department of Transportation, state Departments of Transportation, and industry, it is necessary to build a new transportation workforce that will bring experience, knowledge, and skills to the workplace, particularly in the field of transportation engineering.

The Mississippi Summer Transportation Institute (MSTI) at Jackson State University (JSU) introduced transportation engineering as a career to a diverse group of motivated pre-college students and parents. The objectives were: (1) to increase student awareness of different transportation modes; (2) to heighten students’ understanding of the importance of different transportation modes and solutions; (3) to expose students to a variety of transportation careers; (4) to improve students’ creative, analytical and problem-solving skills; and (5) to develop students’ interpersonal, collaborative, and leadership skills.

Co-funded by Mississippi Department of Transportation (MDOT) and the Federal Highway Administration (FHWA), the proposed Mississippi Summer Transportation Institute (MSTI) program provided a well-rounded curriculum and an environment that fostered academic and personal development, promoted interpersonal skills, and presented real-world transportation issues. The project expanded K-12 engineering workforce development and outreach efforts at Jackson State University (JSU) by introducing transportation engineering as a career and promoting STEM education to diverse students.

The MSTI was accomplished through the completion of the three tasks:

Task 1: Program Preparation This task focused on handling pre-event logistics such as conventional student recruitment strategies, information announcement and dissemination, program applications, recruitment and training of graduate volunteers, invitation letters for faculty, staff, speakers, and presenters, determination of workshops to be offered, obtaining materials for hands-on workshops, arranging for space, lodging, catering, and ordering T-shirts and supplies.

Task 2: Academic and Enhancement Program Conduction This task involved welcoming participants with an opening speech and presentation, assigning graduate volunteers to their specific roles, completing scheduled campus activities and field trips, and collecting program evaluation surveys.


10

Task 3: Closing Award Program Conduction

This task focused on program evaluations, certificates, awards, and preparation of a final program report according to the guidelines set by the funding agencies.

Student recruitment was achieved by evaluating a completed application packet including a current copy of the student’s school transcript, an essay describing the student’s academic and career interests including their reason for wanting to participate in the program, a completed application form, and a recommendation letter. The program evaluation was conducted using a post-program survey which will included a global rating of the activities on a 10-point scale (0 = terrible to 10 = excellent), and free text space for suggestions, comments, and ideas for improvement.

The MSTI provided an opportunity for collaborations among faculty, staff, and students in transportation engineering and other engineering disciplines at JSU as well as engineering professional societies such as the American Society of Civil Engineers (ASCE) and Institute of Transportation Engineers (ITE), JSU, MDOT, FHWA, STRIDE and the local community.

2.0 MISSISSIPPI SUMMER TRANSPORTATION INSTITUTE (MSTI) EDUCATIONAL PROGRAM

2.1 Narrative The Mississippi Summer Transportation Institute (MSTI) Program was held at Jackson State University between July 8, 2018 and July 27, 2018. All the 26 students lived in the university housing for three weeks and participated in on-campus activities.

The program aimed to introduce a diverse group of motivated pre-college students to the transportation industry and encourage them to pursue transportation-related studies and careers. During the three-week residential program, students participated in various academic and enhancement activities to improve their skills in mathematics, science, engineering, and leadership.

To provide students with an in-depth understanding, a variety of educational activities were utilized, including: 1) lectures and presentations; 2) laboratory experiments; 3) field trips and tours; and 4) scientific projects. The specific arrangement of activities is shown in Table 1.


11

Table 1. Agenda of 2018 MSTI

Week 1: July 9 – July 13, 2018 Time Monday 7/9 Tuesday

7/10 Wednesday

7/11 Thursday

7/12 Friday 7/13

8:00-8:45 am

Breakfast Breakfast Breakfast Breakfast Breakfast

8:45-9:00 am

Welcome by FHWA and

MDOT

Intro to Transportati

on Engineering (Dr. Wang)

MDOT Bridge Division

Field Trip: MS Civil Air

Patrol

Intro to Envir. Eng.

(Dr. Danuta) 9:00-9:30

am Program Overview (Dr. Lin Li)

9:30-10:30 am

Intro to Civil Eng. & Transp

(Dr. Wang)

Poster Project

10:30-10:45 am

Break Envir. Eng. Lab Demo

(Dr. Danuta) 10:45-11:45 am

Tour: Civil & Env. Eng. Lab

(Dr. Lin Li) 12:00-1

pm Lunch Lunch Lunch Lunch Lunch

1:00-3:00 pm

Land Survey (Dr. Ubani)

Concrete/Asphalt

Experiment

Robot/ Bridge/ Traffic Project



3:00-3:15 pm

Break

3:15-4:00 pm

Land Survey Lab

(Dr. Ubani) 4:00-5:30

pm Student

Activities Bridge Project

Student Activities

Return to Home

5:30-6:00 pm

Dinner Dinner Dinner Dinner

6:00-10:00 pm

Student Activities

Student Activities

Student Activities

Student Activities


7/17 Wednesday

7/18 Thursday

7/19 Friday 7/20

8:00- Breakfast Breakfast Breakfast Breakfast Breakfast


12

8:45am 8:45-9:30

am Traffic

Engineering (Dr. Wang)

MDOT Field Trip:

TMC Tour; Roll Over & Sign Stop

Field Trip: Old Depot Museum;

Lower Mississippi

River Museum

Field Trip: Automobile

Museum

Intro to Geo. Eng. (Dr. Khan);

Geo. Eng. Lab Demo (Dr.

Khan)

9:30-10:30 am

10:30-10:45 am

Break

10:45-11:45 am

MDOT Railroad Safety

12:00-1 pm

Lunch Lunch Lunch (packed)

Lunch (packed)

Lunch

1:00-4:00 pm

Law Enforcement

(Hilliard White, Roderick Antonio Goode)

Field Trip: Concrete/As

phalt Central

Laboratory Building

Field Trip: Weight Station

Field trip: Nissan

Mrs. Carolyn Bell talk

about final presentation

group and subjects

4:00-5:30 pm

Bridge/ Traffic Project




Return to

Home

5:30-6:00 pm

Dinner Dinner Dinner Dinner

6:00-10:00 pm

Student Activities

Student Activities

Student Activities

Student Activities


7/24 Wednesday

7/25 Thursday

7/26 Friday 7/27

8:00-8:45am

Breakfast Breakfast Breakfast Breakfast Breakfast

8:45-9:30 am

Hydrology (Dr. Wen)

Field Trip: Stennis

Space Center

Mrs. Carolyn Bell talk about

critique and refine

students final presentation

Prep for Final Presentation

Rehearse final

presentation to Mrs.

Carolyn Bell 9:30-10:30

am Prep for Final Presentation

10:30-10:45 am

Hydraulic Lab

(Dr. Khan)

Robot Project

Personal

Break Break

10:45- Prep for Final Prep for Final


13

11:45 am Competition Presentation Presentation 12:00-1

pm Lunch

(packed) Lunch Lunch Lunch

1:00-4:00 pm

Field Trip: Paragon

Jackson, MS

Stennis Space Center

MDOT: Civil Rights

Presentation (Mrs. Carolyn

Bell)

Robot Project

Personal Competition

Closing Ceremony;

Student Presentation

s 4:00-6:00

pm Robot Project Student

Activities Student

Activities Student

Activities Move out of

Dorm 5:30-6:00

pm Dinner Dinner Dinner Dinner

6:00-10:00pm

Student Activities

Student Activities

Student Activities

Student Activities

Student Information

Twenty-six high school students including 13 boys and 13 girls from 16 different high schools enrolled in the 2018 MSTI program. Table 2 shows the detailed information of the students.

Table 2. Student Enrollment in the 2018 MSTI Program

No. M/F Grade Age High School

201801 female 9th 15 Laurel High

201802 Male 10th 16 Cleveland Central

High

201803 female 10th 15 Senatobia High

201804 female 12th 17 Terry High

201805 female 9th 14 Germantown High

201806 Male 10th 15 Germantown High

201807 Male 9th 15 Terry High

201808 Male 10th 15 Velma Jackson High

201809 Male 9th 14 Pearl Jr. High


14





201815 female 11th 16 Jim Hill High

201816 Male 10th 15 Murrah High


201818 female 10th 17 Raymond High

201820 female 12th 17 Hazlehurst High

201821 Male 9th 14 Crystal Spring High

201822 Male 12th 17 Cleveland Central

High

201823 female 9th 14 Murrah High

201825 male 9th 14 Murrah High

201826 male 9th 14 St. Andrews

201827 male 10th 15 Florence High

201829 male 10th 15 Northwest Rankin

High

201830 male 9th 14 Northwest Rankin

High

Lectures and Presentations

Experts and professors from multiple disciplines were involved in the program and made several interesting and professional lectures as shown in Figure 1. Specific lectures included:

• Dr. Feng Wang made two presentations to introduce Civil Engineering and Transportation Engineering as well as a speech on Traffic Engineering.

• Dr. Danuta Leszczynska introduced Environmental Engineering. • Dr. Mohammad Sadik Khan gave a lecture and offered live demonstrations in the lab to

help students better understand Geotechnical Engineering. • Dr. Kejun Wen taught Hydrology and its applications.


15

• Dr. Ubani Ogbonnaya introduced the theoretical knowledge of land surveying and then led students in a practice land surveying activity.

• Several experts from the Mississippi Department of Transportation (MDOT) took an active role in this program by providing informative lectures to further increase students’ interests and abilities in different aspects of transportation.

• Mrs. Carolyn Bell from MDOT taught students how to make a professional presentation. The related photos are seen in Figure 2-4.

Figure 1. Faculty members from Department of Civil and Environmental Engineering present on a variety of topics related to transportation.

Dr. Danuta Leszczynska Dr. Feng Wang

Dr. Ubani Ogbonnaya Dr. Kejun Wen


16

Figure 2. Experts from MDOT present to students.

Laboratory Experiments

Students visited all of the laboratories in the Department of Civil and Environmental Engineering and completed some experiments in the labs. Laboratory members, including teachers and graduate students, all provided detailed explanations for the students. The following are some photos of the laboratory activities.

Materials Lab


17

Figure 3. Students visit the Materials and Soils Labs at MDOT.

Soil Lab

Structures Lab

Geotechnical Lab Survey tests


18

3D Printing Physical Lab

Figure 4. Students visit the Structures, Geotechnical, 3D Printing, and Physical Labs at JSU and participate in a surveying activity.

Field Trips and Tours

Dr. Lin Li, leader of the 2018 program, took the students on each field trip. Sites included the MS Civil Air Patrol, MDOT, Paragon in Jackson, Old Depot Museum, Lower Mississippi River Museum, Automobile Museum, Weight Station, Nissan Factory, and NASA’s Stennis Space Center in Mississippi. All of the students enjoyed the field trips very much and learned the history, background, applications, and prospects of civil engineering. Figure 5 is a photo of students visiting MDOT.

Figure 5. Field Trip to MDOT


19

Scientific Projects

In order to improve creative, analytical and problem-solving skills, the 26 students were divided into three groups based on their interests: 16 students in the bridge group, 5 students in the robot group and 5 students in the traffic group. Dr. Kejun Wen led the bridge group, guiding students to build a bridge with stronger bearing capacity. Ph.D. student Shihui Liu assisted students in building robots. Ph.D. student Guojing Hu taught students how to simulate road traffic using the software VISSIM. Figure 6 shows students working in groups.

Figure 6. Students worked in three different groups to complete activities: a) Bridge Group; b) Traffic Group; c) Simulation Result of the Traffic Group.

(a) (b)

(c)


20

2.2 Collaborations MSTI was made possible through collaborations with many agencies and organizations. Collaborators provided guest speakers, campus lab visits, and field trips. Guest Speakers

• Faculty from the Department of Civil and Environmental Engineering • Experts from the Mississippi Department of Transportation (MDOT)

Guest speakers from JSU and MDOT provided various talks on transportation engineering and inspired students’ interest in the field. Campus Lab Visits

• JSU Department of Civil and Environmental Engineering, Department of Physics, Department of Electrical & Computer Engineering and Computer Science.

Faculty members and lab technicians introduced the lab equipment and demonstrated some sample testing. They also helped students with hands-on experiments. Field trip locations

• MS Civil Air Patrol, MDOT, Paragon in Jackson, Old Depot Museum, Lower Mississippi River Museum, Automobile Museum, Weight Station, Nissan Factory, and NASA’s Stennis Space Center in Mississippi

Staff at each location provided historical background and helped students learn more about transportation engineering and what to do as a traffic engineer in the context of their agency or organization.

2.3 Impacts After each field trip or lecture presentation, students completed a quiz to recall what they learned. Evaluation data from the program was summarized in a journal article:

Yan, J., Wen, K. and Li, L., 2020. Effects of Summer Transportation Institute on Minority High School Students' Perception of STEM Learning. Journal of STEM Education: Innovations & Research, 20(2).

In the future, more in-depth evaluations will be conducted including a pre-program questionnaire and a questionnaire at the end of each week to track how the activities influenced their opinion on transportation engineering. After the program, a 6-month post-program questionnaire will be distributed to evaluate their level of interest in transportation engineering and their intended college major.


21

2.4 Recommendations The MSTI has been successfully hosted in the past several years at Jackson State University. Students have enjoyed many projects such as the bridge competition and robot competition. However, the robot is very old, and many parts are missing. A new transportation-related robot should be purchased for future programs.

3.0 CONCLUSION Over the past decade, the MSTI program exposed African-American high school students to Civil/Transportation Engineering subjects. During the three-week program, students participated in fun, engaging activities from morning to evening. Through lectures from faculty in the Department of Civil and Environmental Engineering, students learned about Geotechnical Engineering, Hydrology Engineering, Transportation Engineering, and Environmental Engineering. Experts from MDOT introduced students to real-life transportation projects. Through the implementation of the bridge project and the robot project, students not only received training in transportation engineering knowledge, but also honed their leadership and teamwork skills. The field trips broadened their horizons by introducing them to agencies and organizations where transportation professionals work in their state. Through all of the activities, students learned the connection between traffic engineering and their own lives. Many students became more interested in transportation-related majors and some of them enrolled at JSU’s College of Science, Engineering and Technology (CSET) Academy. Expanding the knowledge of K-12 students can help guide them in their future career choices.

4.0 ATTACHMENTS a. MSTI Presentation – Introduction to Bridge Engineering


22

MSTI Presentation - Bridge Engineering

1

What is a BRIDGE?

• Bridge is a structure built to span a valley, road, river, body of water, or any other physical obstacle.

Bridge Engineering

Jackson State University

MSTI 2018

Lecturer: Jacki Wen

Stone Bridge in China

Low bridge Shallow arch Allows boats and water to pass through

Roman Arch Bridge Arch design evenly distributes stresses Natural concrete made from mud and straw

700 A.D. Asia

1,304 years ago Simple Bridge Tree trunk Stone

100 B.C. Romans 2,104 years ago

History of Bridge Development

Prestressed Concrete Steel

2000 Suspension Bridges

Use of steel in suspending cables

1920 Truss Bridges Mechanics of Design Wood

1900

History of Bridge Development

Slab, Girder Truss, Arch, Suspension, Cable-Stayed

Short, Medium, Long Span

Structural Form

Usage Pedestrian, Highway, Railroad

Steel Concrete, Wood, Steel ， Stone/Brick

Material

Classification of Bridges

Tension Compression Tension -

Basic Concepts Span - the distance between two bridge supports, whether they are columns, towers and so on.

Force -

Compression –


23

What happens to the bridge when a load is put on the bridge?

• When the load pushes down on the beam，

the top edge is pushed together or compressed, while the bottom of the beam is stretched or is under tension.

Basic Concepts

Beam - a rigid, usually horizontal, structural element

Beam

Pier

Pier - a vertical supporting structure, such as a pillar

Load - weight on a structure

• The beam is one of the simplest forms of bridge. • Consists of a horizontal beam supported at each end

by piers. • The weight of the beam pushes straight down on the

piers. The farther apart its piers, the weaker the beam becomes. This is why beam bridges rarely span more than 250 feet.

Types of Bridges Beam Bridge

Types of Bridges Beam Bridge

Forces

When something pushes down on the beam, the beam bends. Its top edge is pushed

together, and its bottom edge is pulled apart.

Truss Bridge

Trusses are structures of connected elements forming triangular units and comprised of many small beams together can support a large amount of weight and span great distances. The connected elements (typically straight) may be stressed from tension, compression, or sometimes both in response to dynamic loads.

Suspension The type of bridge used depends on the obstacle. The main feature that controls the bridge type is the size of the obstacle.

Arch Truss Beam

•Beam Bridge •Truss Bridge •Arch Bridge •Suspension Bridge •Cable-stayed Bridge

Types of Bridges


24

The arch has great natural strength. Thousands of years ago, Romans built arches out of stone. Today, most arch bridges are made of steel or concrete. Arches resist forces through compression. Thrust is a major consideration. Longest – Lupu, 1,760 ft (China, 2003)

Types of Bridges Arch Bridges Truss Bridge

This kind of bridges can span 2,000 to 7,000 feet -- way farther than any other type of bridge! Most suspension bridges have a truss system beneath the roadway to resist bending and twisting. Longest: Akashi- Kaikyo, 6,527 ft (Japan, 1998)

Types of Bridges Suspension Bridges

Gold Gate Bridge

• Location: San Francisco, spanning the Golden Gate strait

• Construction period: from 1/5/1933-5/28/1937 • Cost: approximately $1.2 billion dollars


25

Types of Bridges Cable Stayed Bridge • The cable stayed bridge is newer than the other types of

bridge. Large upright steel supports are used to transmit the load into the ground. Longest: Russky Bridge, 3622 ft (Russia, 2012)

Rewards • Had been the longest suspension bridge main span in

the world, at 4,200 feet (1,300 m) , until 1964, now still ranks 9th.

• Ranked fifth on the List of America's Favorite

Architecture by the American Institute of Architects,1999.

• One of the Wonders of the Modern World declared by the American Society of Civil Engineers.

• The second-most used suicide site in the world. The

deck is about 245 ft above the water. After a fall of four seconds, jumpers hit the water at around 75 mph. Most of the jumpers die from impact trauma.

Cable-stayed Bridge

To by continued by YOU….

Paper and Bamboo Bridge Project

MSTI Summer Program 2017 Task Objective: Design and build paper/bamboo bridges(With/without piers) to span a distance while supporting certain load using minimum materials.

Project Goals The project goals for students are to: • Learn the design process. • Develop the ability to build prototype structure. • Apply knowledge of geometry, physics, and

engineering statics (force analysis). • Build the paper and bamboo bridge. • Recognize the necessity of good

communication skills and team work for engineers.


26

Project Constraints

Minimum requirement: make robot get through safely 。 Width: 160mm; Span: 600 mm; Height: according to the model of the mountains（200mm and

300mm）

Shape: Original ideas encouraged!

Assessment

Based on the minimum requirement:

As engineers, you want to support the robot load using the least amount of materials.

Constraints: Building Materials for paper bridge

• One large size paper （22in*28in） and 120 letter size papers (if letter size paper is not enough，you can ask for more)

• One paper glue • One scissor • One ruler; One pencil


27

Constraints: Building Materials for bamboo bridge

• Two bamboo sheets: • (1250×430 × 0.50mm；1250×215×0.20mm）

• Twelve bamboo sticks: • （Four types：900 × 2 × 2mm ；900 × 3 × 3mm ； • 900 × 1.5× 6mm ； 900 × 3 × 6mm ； four each type）

• One bamboo glue • One scissor • One ruler; One pencil

Grading • Full score: 100 points.

– Static load: 50% – Aesthetic Evaluation: 10% – Dynamic load : 40%

Note: In dynamic load state, the first place will receive the full score of each aspect. Others will be scored according to the proportion to

the first place.

How can you improve your bridge design?

• Design the structure from the start! • Use short members in compression. • Use string for tension members.(Reduce

material and weight) • Avoid overloading joints.

Designing Tips: Bending! • DON’Ts

– avoid bending bridge members when possible.

– avoid compressing long bridge members - causes buckling (a kind of bending).

– avoid tension along the transverse bamboo. DO’s – load members in tension and compression

(short) when possible. – brace bending members when possible. – Use tension along the longitudinal bamboo.


28

Truss Bridge

• Truss design is to support the bridge deck

• The truss may have compression or tension

• The joint of truss is important

How to build a good paper and bamboo bridge?

Truss Exampl

es


29


30

JUST DO IT !!!

2018 mississippi summer transportation institute at ......2018 mississippi summer transportation...

Documents