Q: A prefabricated wood I-beam serving as a floor joist has
A prefabricated wood I-beam serving as a floor joist has the cross section shown in the figure. The allowable load in shear for the glued joints between the web and the flanges is 65 lb/in. in the lon...
See AnswerQ: A pole is fixed at the base and is subjected to a
A pole is fixed at the base and is subjected to a linearly varying distributed force with maximum intensity of qo and an axial compressive load P = 20 kips at the top (see figure). The pole has a circ...
See AnswerQ: The beams shown in the figure are subjected to bending moments M
The beams shown in the figure are subjected to bending moments M = 2100 lb-in. Each beam has a rectangular cross section with height h = 1.5 in. and width b = 0.375 in. (perpendicular to the plane of...
See AnswerQ: A rigid steel plate is supported by three posts of high-
A rigid steel plate is supported by three posts of high-strength concrete each having an effective cross-sectional area A = 40,000 mm2 and length L = 2 m (see figure). Before the load P is applied, th...
See AnswerQ: A capped cast-iron pipe is compressed by a brass rod
A capped cast-iron pipe is compressed by a brass rod, as shown. The nut is turned until it is just snug, then add an additional quarter turn to pre-compress the cast-iron pipe. The pitch of the thread...
See AnswerQ: A plastic cylinder is held snugly between a rigid plate and a
A plastic cylinder is held snugly between a rigid plate and a foundation by two steel bolts (see figure). Determine the compressive stress σP in the plastic when the nuts on the steel bolts...
See AnswerQ: Solve the preceding problem if the data for the assembly are as
Solve the preceding problem if the data for the assembly are as follows: length L = 10 in., pitch of the bolt threads p = 0.058 in., modulus of elasticity for steel Es = 30 × 106 psi, modulus of elast...
See AnswerQ: Because of foundation settlement, a circular tower is leaning at an
Because of foundation settlement, a circular tower is leaning at an angle a to the vertical (see figure). The structural core of the tower is a circular cylinder of height h, outer diameter d2, and in...
See AnswerQ: Consider the sleeve made from two copper tubes joined by tin-
Consider the sleeve made from two copper tubes joined by tin-lead solder over distances. The sleeve has brass caps at both ends that are held in place by a steel bolt and washer with the nut turned ju...
See AnswerQ: A polyethylene tube (length L) has a cap that when
A polyethylene tube (length L) has a cap that when installed compresses a spring (with un deformed length L1 > L) by an amount d = (L1 – L2). Ignore deformations of the cap and ba...
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