The beam-column in Figure P6.6-11 is a member of a braced frame.
The beam-column in Figure P6.6-11 is a member of a braced frame. A second-order analysis was performed with factored loads and reduced member stiffnesses to obtain the moments and axial force shown. Use LRFD and determine whether this member is adequate.
Homework Answers
A W14 × 74 of A992 steel, 16 feet long, is used as a column in an unbraced frame.
A W14 × 74 of A992 steel, 16 feet long, is used as a column in an unbraced frame. The axial load and end moments obtained from a first-order analysis of the gravity loads (dead load and live load) are shown in Figure P6.7-2a. The frame is symmetric, and the gravity loads are symmetrically placed. Figure P6.7-2b shows the wind load effects obtained from a first-order analysis. All loads and moments are based on service loads, and all bend-ing moments...
(Text 6.8-6) The member shown in Figure P6.8-6 is part of a braced frame.
(Text 6.8-6) The member shown in Figure P6.8-6 is part of a braced frame. The axial load and end moments are based on service loads composed of equal parts dead load and live load. The frame analysis was performed consistent with the effective length method, so the flexural rigidity, El, was unreduced. Select a W shape of A992 steel.
Please show all steps and cite all AISC formulas. Thanks 5) Compression combined with bending -...
Please show all steps and cite all AISC formulas. Thanks
5) Compression combined with bending - design AW-section beam-column member is to be used in a braced frame, and must support factored LRFD loads of Pu 600k and moments Mux = 330 k*ft (these loads were derived through use of a rigorous 2nd-order analysis and include notional loads). The member is 18ft long and totally unbraced with respect to both flexural buckling (for compression) and lateral-torsional buckling (for flexure). Choose...
The single-story unbraced frame shown below is subjected to dead load, roof live load, and wind load Figure 1 shows the...
The single-story unbraced frame shown below is subjected to dead load, roof live load, and wind load Figure 1 shows the results of a first-order analysis relative to the columns of the frame. The axial load and end moment (also equal to the maximum moment in the column) are given separately for the different load cases (i.e., dead load, roof live load, and lateral wind load). All vertical loads are symmetrically placed and contribute only to the Mnt moments (i.e.,...
Could you please use 15th edition of AISC Manual for proper solution. 4. Use A992 steel...
Could you please use 15th
edition of AISC Manual for proper solution.
4. Use A992 steel and select the lightest W12-shape for the beam-column shown in the figure below. The member is part of a braced frame, and the axial load and bending moment are based on service loads consisting of 30% dead load and 70% live load (the end shears are not shown) Bending is about the strong axis, and K= Ky=1.0. The frame analysis was performed consistent with...
Determine the most economical W14 for member AB shown below in a multistory braced frame. The...
Determine the most economical W14 for member AB shown below in a multistory braced frame. The axial compressive load is 400 kips dead load and 1100 kips live load. Assume that bracing is only provided at the column base and at the connection with the beams. Use A992 steel. W18x143 W18x192 10ft W14x176 W18x143 W18x192 B 10ft A 25ft 35ft
1.100 kips Problem 5: The frame with the factored loads in 10 kips Figure 5 is fixed at the base....
1.100 kips Problem 5: The frame with the factored loads in 10 kips Figure 5 is fixed at the base. The columns are oriented so that in-plane bending will be about the x-axis. The columns are continuously braced in the transverse direction such that they can only buckle in-plane. Use A992 steel and select the lightest W14 for the column. The beam size is W24x76 15 f 20 ft
1.100 kips Problem 5: The frame with the factored loads in...
Don’t do the extra credit. Just the regular problem. The single-story unbraced frame shown below is...
Don’t do the extra credit. Just the regular problem.
The single-story unbraced frame shown below is subjected to dead load, roof live load, and wind load Figure I shows the results of a first-order analysis selative to the columns of the frame The axial load and end moment (also equal to the maximum moment in the column) are given separately for the diffierent load cases (i e, dead load, roof live load, and lateral wind load) All vertical loads are...
The beam shown in Figure 1 is laterally braced at A, B, C, and D. Is...
The beam shown in Figure 1 is laterally braced at A, B, C, and D. Is a W36x 182 adequate for F, 50 ksi based on the AISC specification for LRFD method? Note: Check only for flexural strength limit. 7' 7 14' 28' Figure 1
3. For the single-storey braced frame shown below, determine the design axial loads of the members...
3. For the single-storey braced frame shown below, determine the design axial loads of the members under gravity plus wind loads. All the members are pinned-connected and the self- weights of the member are included in the dead load. в, Vw Ps 200 kN V,-50 kN 6.0 m
Please show all steps and cite all AISC formulas. Thanks
5) Compression combined with bending - design AW-section beam-column member is to be used in a braced frame, and must support factored LRFD loads of Pu 600k and moments Mux = 330 k*ft (these loads were derived through use of a rigorous 2nd-order analysis and include notional loads). The member is 18ft long and totally unbraced with respect to both flexural buckling (for compression) and lateral-torsional buckling (for flexure). Choose...
The single-story unbraced frame shown below is subjected to dead load, roof live load, and wind load Figure 1 shows the results of a first-order analysis relative to the columns of the frame. The axial load and end moment (also equal to the maximum moment in the column) are given separately for the different load cases (i.e., dead load, roof live load, and lateral wind load). All vertical loads are symmetrically placed and contribute only to the Mnt moments (i.e.,...
Could you please use 15th
edition of AISC Manual for proper solution.
4. Use A992 steel and select the lightest W12-shape for the beam-column shown in the figure below. The member is part of a braced frame, and the axial load and bending moment are based on service loads consisting of 30% dead load and 70% live load (the end shears are not shown) Bending is about the strong axis, and K= Ky=1.0. The frame analysis was performed consistent with...
Determine the most economical W14 for member AB shown below in a multistory braced frame. The axial compressive load is 400 kips dead load and 1100 kips live load. Assume that bracing is only provided at the column base and at the connection with the beams. Use A992 steel. W18x143 W18x192 10ft W14x176 W18x143 W18x192 B 10ft A 25ft 35ft
1.100 kips Problem 5: The frame with the factored loads in 10 kips Figure 5 is fixed at the base. The columns are oriented so that in-plane bending will be about the x-axis. The columns are continuously braced in the transverse direction such that they can only buckle in-plane. Use A992 steel and select the lightest W14 for the column. The beam size is W24x76 15 f 20 ft
1.100 kips Problem 5: The frame with the factored loads in...
Don’t do the extra credit. Just the regular problem.
The single-story unbraced frame shown below is subjected to dead load, roof live load, and wind load Figure I shows the results of a first-order analysis selative to the columns of the frame The axial load and end moment (also equal to the maximum moment in the column) are given separately for the diffierent load cases (i e, dead load, roof live load, and lateral wind load) All vertical loads are...
The beam shown in Figure 1 is laterally braced at A, B, C, and D. Is a W36x 182 adequate for F, 50 ksi based on the AISC specification for LRFD method? Note: Check only for flexural strength limit. 7' 7 14' 28' Figure 1
3. For the single-storey braced frame shown below, determine the design axial loads of the members under gravity plus wind loads. All the members are pinned-connected and the self- weights of the member are included in the dead load. в, Vw Ps 200 kN V,-50 kN 6.0 m
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