2009年6月3日 · I am also getting referrals to the following publications to calculate the exact area of shear plane on a semi-circular ended lug: “Pinned Connection Strength and Behavior,” Journal of Structural Engineering, Vol. 132, No. 2,

2019年8月19日 · I am designing the shear lug as per ACI 349, the code does not discuss the checks of the shear lug incase the force is parallel to the edge (not perpendicular). However, going through ACI 318-11 appendix D, it says for anchor bolts '' The case of shear force parallel to an edge is shown in Fig. RD.6.2.1(c).

2018年4月27日 · However, if I choose to use a shear lug to resist the shear loads, should the overstrength factor be applied for the shear lug design? AISC DG 1 addresses the design of shear lugs and all it mentions is that when AISC Seismic Design Provisions are triggered (i.e. R > 3) then the "column base" can be designed for amplified forces including the ...

2002年4月4日 · Most of the references and techniques I'm familiar with are concerned with the effect of bending due to the moment arm of an attachment like a shoe or dummy leg. The shear aspect seems to generally be neglected as not contributing greatly to the stress. However, in this case, the shear is really the only contributor to the stress.

2006年7月10日 · shear tear-out refers to the "lug" around the hole shearing. a simple way to approximate this area is to take a 45deg line from the bolt center; the area is thickness * the lengnth between the edge of the hole and the edge of the part * 2 (as there are two faces (+45 and -45). the allowable for this is the shear strength of the lug material.

2007年4月21日 · The shear lug runs the length of the base plate and is 6 inches deep from the bottom of the base plate (i.e. 4-1/2 inches into the mat) and about 1 inch thick. The mat itself is about 18 inches thick.

2004年5月13日 · I'm trying to correctly size shear lugs for a Main Steam Pipe rigid hanger (donut clamp type). We are replacing a batwing style rigid hanger with a shear lug type. My understanding is that some of the calculations are based on data in WRC-107 and also reference Blodgett Table 5. Are these standards/specifications or what, and where can they be ...

2018年3月19日 · Hi I am sizing the shear lug for seismic forces. I have a situation where pier is shallow. The 45 degree failure plane for concrete breakout of shear lug is controlled by height of pier. The amount of concrete area available for breakout is not sufficient to resist shear. I am adding a shear...

2018年3月16日 · So my argument is not to worry about the HSS face bending because by then your shear lug is already gonna be having performance issues. If you use KootK's free body diagram and assume a narrow bearing width (maybe 2x wall thickness) at each the HSS walls parallel to the load, you could probably make a reasonable estimate of the bearing pressure ...

2012年12月5日 · I have a 2.5" thick lift lug that I am welding to an HSS12x6x1/2 joing of tubing. I am trying to follow the DNV requirements of making all lift lugs full penetration, but I am concerned about the tubing wall thickness being too thin (1/2"). This would be a double bevel weld as shown in the...