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6th Edition

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Publisher: Cengage Learning

ISBN: 9781337094740

Chapter 8, Problem 8.3.8P

Textbook Problem

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A bracket cut from a WT-shape is connected to a column flange with 10 Group A slip-critical bolts, as shown in Figure P8.3-8. A992 steel is used. The loads are service loads, consisting of

**a**. Use LRFD.

**b**. Use ASD.

(a)

To determine

The size of bolt on the basis of load resistance and factor design.

**Given:**

The number of group

The service load is divided into

The factored load along x-direction is

The factored load along y-direction is

**Calculation:**

Write the equation to obtain the load factor along x-direction.

Here, load factor is

Calculate the dead load.

Calculate the live load.

Substitute

Write the equation to obtain the load factor along y-direction.

Here, load factor is

Calculate the dead load:

Calculate the live load:

Substitute

Write the expression for the direct tensile strength per bolt.

Here, the direct tensile strength per bolt is

Substitute

Write the expression moment caused by eccentricity.

Here, the moment caused by eccentricity is

Calculate the eccentricity in y-direction.

Substitute,

Write the expression to obtain the bolt force in tension.

Here, resisting moment is

Calculate the distance between the centroid of compression and tension bolts.

Substitute,

Write the expression for the total tension load per bolt.

Here, the total tension load per bolt is

Substitute

The total tension load per bolt is equal to the nominal shear strength per bolt.

Write the expression to obtain the nominal shear strength per bolt.

Here, resistance factor is

Substitute,

(b)

To determine

The size of bolt on the basis of Allowed Stress Design.

Steel Design (Activate Learning with these NEW titles from Engineering!)

Show all chapter solutions

Ch. 8 - Use an elastic analysis to determine the maximum...Ch. 8 - The bolt group shown in Figure P8.2-2 consists of...Ch. 8 - A plate is used as a bracket and is attached to a...Ch. 8 - The fasteners in the connection of Figure P8.2-4...Ch. 8 - A plate is used as a bracket and is attached to a...Ch. 8 - The load on the bracket plate consists of a...Ch. 8 - What diameter Group A bearing-type bolt is...Ch. 8 - Use Group A slip-critical bolts and select a bolt...Ch. 8 - Group A bolts are used in the connection in Figure...Ch. 8 - A plate is connected to the web of a channel as...

Ch. 8 - Solve Problem 8.2-2 by the ultimate strength...Ch. 8 - The bolt group shown in Figure P8.2-12 consists of...Ch. 8 - For the conditions of Problem 8.2-12, determine...Ch. 8 - Check the adequacy of the bolts. The given loads...Ch. 8 - A beam is connected to a column with 7 8...Ch. 8 - Check the adequacy of the bolts for the given...Ch. 8 - Check the adequacy of the bolts. The given load is...Ch. 8 - Check the adequacy of the bolts in the connection...Ch. 8 - The flange of a portion of a WT620 is used as a...Ch. 8 - A beam is connected to a column with 3 4...Ch. 8 - A bracket cut from a WT-shape is connected to a...Ch. 8 - For the following designs, use A36 steel for the...Ch. 8 - Same as Problem 8.3-9, but use ASD.Ch. 8 - Use an elastic analysis and determine the maximum...Ch. 8 - Use an elastic analysis and determine the maximum...Ch. 8 - Use an elastic analysis and determine the maximum...Ch. 8 - Use an elastic analysis and check the adequacy of...Ch. 8 - Use E70 electrodes and determine the required weld...Ch. 8 - Check the adequacy of the weld. The 20-kip load is...Ch. 8 - Use an elastic analysis and compute the extra load...Ch. 8 - Use an elastic analysis and compute the extra load...Ch. 8 - An L663 8 is attached to a 3 8 -in.-thick gusset...Ch. 8 - Solve Problem 8.4-1 by the ultimate strength...Ch. 8 - Solve Problem 8.4-4 by the ultimate strength...Ch. 8 - Solve Problem 8.4-7 by the ultimate strength...Ch. 8 - A connection is to be made with the weld shown in...Ch. 8 - Same as Problem 8.4-13, but use ASD.Ch. 8 - Use the elastic method and design a welded...Ch. 8 - Same as Problem 8.4-15, but use ASD.Ch. 8 - A single-angle tension member is connected to a...Ch. 8 - Same as Problem 8.4-17, but use ASD.Ch. 8 - a. Use LRFD and design a welded connection for the...Ch. 8 - Same as Problem 8.4-19, but use ASD.Ch. 8 - Determine the maximum load in the weld in kips per...Ch. 8 - Determine the maximum load in the weld in kips per...Ch. 8 - Use the maximum size E70 fillet weld and compute...Ch. 8 - A bracket plate of A36 steel is welded to a W1250...Ch. 8 - A WT741 bracket is connected to a W14159 column...Ch. 8 - A W1850 beam is connected to a W1499 column. To...Ch. 8 - A W1645 beam is connected to a W1045 column as...Ch. 8 - Same as Problem 8.6-2, but use ASD.Ch. 8 - Design a three-plate moment connection of the type...Ch. 8 - A service-load moment of 118 ft-kips, 30 dead load...Ch. 8 - Determine whether column stiffeners are required...Ch. 8 - a. A W1835 beam is to be connected to a W1453...Ch. 8 - Investigate the adequacy of the bolts in the given...Ch. 8 - Investigate the adequacy of the bolts in the given...Ch. 8 - Design a four-bolt unstiffened end-plate...Ch. 8 - Design a four-both unstiffened end-plate...

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