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The weld access hole or rat hole is a structural engineering technique in which a part of the web of an I-beam or T-beam is cut out at the end or ends of the beam. The hole in the web allows a welder to weld the flange to another part of the structure with a continuous weld the full width on both top and bottom sides of the flange. Without the ...
The American Institute of Steel Construction (AISC) is a not-for-profit technical institute and trade association for the use of structural steel in the construction industry of the United States. AISC publishes the Steel Construction Manual, an authoritative volume on steel building structure design that is referenced in all U.S. building codes.
Rescue workers standing near the illegal rat-hole mine. The National Disaster Response Force (NDRF), State Disaster Response Force (SDRF), Indian Army, and the Navy have been deployed to the site. 100 rescuers in total are said to be at the site. [4] As of 16 January, the bodies of four workers are said to have been recovered from the site. [5]
‘Rat-hole miners’ appear to have played key role in final breakthrough to reach 41 trapped construction workers
Allowable Stress Design philosophy was left unsupported by AISC after the 9th edition of the manual which remained an acceptable reference design standard in evolving building codes (e.g. International Building Code by the International Code Council). This presented problems since new research, engineering concepts and design philosophy were ...
The technique dubbed “rat-hole mining” has been used to dig through the final stretch of fallen rocks and debris and reach the workers, who have remained trapped in the collapsed tunnel in ...
QP" stands for "Qualification Procedure", a reference to the technical standard that underlies each program. QP 1, Field Application to Complex Industrial and Marine Structures; QP 2, Field Removal of Hazardous Coatings; QP 3, Shop Painting (QP 3 is a joint standard also used by AISC for their sophisticated paint endorsement.)
For the 10th consecutive year, a popular pest control company has crowned Chicago the "rattiest city."Orkin, an American pest control company founded in 1901, announced the "honor" on Monday.