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Module Prelim

The document discusses the design and significance of tension members in steel structures, including their applications in trusses, bridges, and towers. It covers types of tension members, design considerations such as strength limit states, net area calculations, slenderness ratios, and connection designs. Additionally, it outlines the design process for optimizing tension members and highlights practical applications and case studies related to tension member failures.

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jarvis kent bayatan
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15 views1 page

Module Prelim

The document discusses the design and significance of tension members in steel structures, including their applications in trusses, bridges, and towers. It covers types of tension members, design considerations such as strength limit states, net area calculations, slenderness ratios, and connection designs. Additionally, it outlines the design process for optimizing tension members and highlights practical applications and case studies related to tension member failures.

Uploaded by

jarvis kent bayatan
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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1.

) TENSION MEMBER IN STEEL DESIGN

a.) definition and significance in steel structure

b.) common applications (trusses, bridge, towers, etc.)

c.) types of tension members (single vs built-up sections)

discussion : why are tension members preferred in trusses? And how do different cross sections affect tension capacity

2.) What are the four (4) types of tension member

discussion: compare the behavior of single section vs built-up members, why are angles commonly used as tension
members

3.) Explain and discuss design considerations

a.) strength limit states

- yielding of gross section

- rupture of net section

- block shear failure

discussion: how does bolt-hole reduction affect strength? Why is yielding preferred over fracture?

b.) Net area and effective net area

- calculation of net area

- concept of shear lag and effective net area

Discussion: why does shear lag reduce the effective net area? How does staggered bolting improve net section
efficiency?

c.) slenderness ratio and serviceability consideration

-importance of limiting L/r < or = 300

- effects of excessive slenderness on vibration and deflection

Discussion: why is there no strict slenderness limit for pure tension members? How does slenderness affect fatigue in
cyclic loading?

d.) connection design for tension member

-bolted vs welded connection

-gusset plate and their role

-eccentric vs concentric connection

Discussion: why are welded connection more efficient in tension? How does eccentric introduce bending in tension
members?

4.) Design process

Discussion: how do you optimized a tension member for weight reduction? Why is block shear failure common in bolted
connection?

1.) select material: choose steel grade based on requirements (e.g. ASTM A36, A992), seven(7) problems

2.) determine loads: Compute tensile force using structural analysis

3.) check strength: ensure the member is safe against yielding, rapture, and block shear

4.) check slenderness: ensure L/r < or = 300

5.) design connections: choose bolted or welded connections to safely transfer loads

CODE REFERENCES, AISC360 (AMERICAN INSTITUE OF STEEL CONSTRUCTION)

5.) Practical application and case studies

-tension member in roof trusses, bridges, and transmission towers

-failure in tension member causes and lesson learned

Discussion: what are some famous structural failures due to tension member issues? How does corrosion affect tension
member strength?

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