Unstiffened extended endplate fr moment connection beamtocolumn flange idea statica connection results the extreme tension force in upper bolt is ft 211. The proposed prediction equations are applicable to stiffened and unstiffened end plate moment connections with various bolt layouts. Aug 04, 2000 the proposed prediction equations are able to predict the thickness of the end plate to within %. With reference to beamtocolumn joints with extended endplate connections, the experimental results presented in 816 were considered. Behavior of ibeam bolted extended endplate moment connections.
Unified design of extended endplate moment connections subject. In order to identify the effect of different parameters on the behavior of the connection, a threedimensional finite element model that accounts for both geometrical and material nonlinearities is developed using the multipurpose software package ansys. Buy extended endplate moment connections on free shipping on qualified orders extended endplate moment connections. Figure 2a shows the ratios of the theoretical moment resistance and the experimental moment resistance. Manual of steel construction, load and resistance factor design, american. In order to identify the effect of different parameters on the behavior of the connection, a threedimensional finite element model. In a stiffened extended end plate when there is more than one row.
Design guide 16 covers the design of flush and extended multiple row moment end plate connections. Chapter iib fullyrestrained fr moment connections the design of fully restrained fr moment connections is covered in part 11 of the aisc steel construction manual. Extended end plate moment connections seismic and wind applications. Ram connection capabilities and modeling faq ram staad. Connections in multistorey frames are most likely to be bolted, full depth end plate connections or extended end plate connections. Skewed or dual axis moment connections, moment connections in the weak axis direction of the column e.
The guide makes use of yield line theory in a new design philosophy extended endplate moment connections in wind and seismic applications. Behavior of extended endplate steel beam to column connections. Aisc design guide 4 extended end plate moment connections. Aisc, manual of steel construction, load and resistance factor. Pretensioned extended, bolted end plate moment connections are very popular due to ease of fabrication and erection. Prequalified connections for special and intermediate steel. Extended endplate moment connections seismic and wind applications second edition. The design code and design method is controlled by the code selected for design when performing a design in the ram elements model.
In order to identify the effect of different parameters on the behavior of the. Pretensioned extended, bolted endplate moment connections are very popular due to ease of fabrication and erection. Aisc design guide 04 extended end plate moment connections. Evaluation of extended endplate moment connections under. In addition the suitability of extended end plate moment connections for use in seismic force resisting moment frames was investigated. Pdf behavior of ibeam bolted extended endplate moment. Extended end plate moment connections is now available. Steel buildings in europe singlestorey steel buildings part. Aisc design guide 16 flush and extended multiplerow moment. Moment resisting connections are used in multistorey unbraced buildings and in singlestorey portal frame buildings. Extended end plate moment connections under cyclic loading. Aisc design guide 04 extended endplate moment connections. Extended end plate moment connections seismic and wind applications second edition. The aforementioned studies, and others, used time consuming experimentation to explore the behavior and try to develop the prediction equations for the extended end plate moment connections.
All bolted moment splice 1 bolted flange plate block shear rupture bolt bearing bolt shear plate buckling tension rupture tension yielding weld strength. Cyclic behavior of bolted extended endplate moment. Extended end plate moment connections showed good potential for use in seismic zones. Steel design guide extended endplate moment connections seismic and wind applications second edition. Specifically the program can analyze both single 4tension bolt and 8tension bolt configurations, as well as the conditions of having moment connections on each. Design procedures for determining the required bolt diameter and grade, end plate thickness, and column flange. Experimental assessment of the ductility of extended end plate. The procedure involved manual metal arc welding in. Scribd is the worlds largest social reading and publishing site. Pdf pretensioned extended, bolted endplate moment connections are very popular due to ease of fabrication and erection. In addition, the relationship of the moment and rotation. Steel design guide extended endplate moment connections. Specimens were six fourbolt extended end plate connections consist of hshaped columns and ishaped beams with different geometry as well as different end plate size and bolt diameter. Evaluation of extended endplate moment connections under seismic loading by john c.
Thesis submitted to the faculty of the virginia polytechnic institute and state university in partial fulfillment of the requirements for the degree of master of science in civil engineering approved. End plate moment connections are classi fied as either flush or extended, with or without stiffeners, and further classified depending on the number of bolts at. Cyclic behavior of bolted extended endplate moment connections with different sizes of end plate and bolt stiffened by a rib plate article pdf available in. Montaguebetts professor of structural steel design virginia polytechnic institute and state university blacksburg, virginia emmett a. Pdf cyclic behavior of bolted extended endplate moment. This model is used to conduct a parametric study on two endplate con. Eleven fullscale cyclic and nine monotonic extended end plate moment connection tests were conducted. The current code for assigning connections is selected in the design menu similar to ram connection 11 stand alone. Steel design guide extended end plate moment connections seismic and wind applications second edition. Eleven fullscale cyclic and nine monotonic extended endplate moment connection tests were conducted. Extended endplate moment connections seismic and wind applications download. Design tools for bolted endplate beamtocolumn joints. Cyclic loading of end plate moment connections canadian.
The updated guide was written by tom murray of virginia tech and emmett sumner or nc state. The beamcolumn connections were made with eightbolt, extended, stiffened endplate connections. A considerable number of literatures have been published on the behavior of end plate connections in ordinary moment resisting frames. The extended end plate moment connection presents a number of advantages over the more conventional welded flange bolted web moment connection. In addition the suitability of extended endplate moment connections for use in seismic force resisting moment frames was investigated. A critical aspect of end plate connection design is the welding procedure used to install the welds that connect the end plate to the connected beam as 14 design guide 4 extended end plate moment connections seismic and wind applications, 2nd edition observed in the 19 94 northridge earthquake, inadequate welding procedures and details used. One east wacker drive, suite 700 chicago, illinois 606011802. Design procedures for determining the required bolt diameter and grade, endplate thickness, and column flange. Two major advantages are its ability to relieve the high stresses at the connection due to the flexibility of the end plate and good weld quality more easily obtainable under control shop welding. Aisc design guide 04 extended endplate moment connections american institute of steel construction download bok. Extended endplate moment connections is now available. Sep 01, 2018 aisc steel connection design extended end plate moment connection aisc steel connection design flange plate moment connection aisc steel connection design shear connection shear tab.
It was found, experimentally, that this type of connection might act as either a fullyrigid or a semirigid connection depending mainly on the thickness of the end plate and the diameter of bolts. Aisc design guide 16 flush and extend multiple row moment. Design a bolted flangeplated fr moment connection between a w18. Swanson analysis systems online manual, version 11. Endplate moment connections are classi fied as either flush or extended, with or without stiffeners, and further classified depending on the number of bolts at. Aisc steel connection design extended end plate moment connection aisc steel connection design flange plate moment connection aisc steel connection design shear connection shear tab. Evaluation of stiffened endplate moment connection through. Aisc design guide 16 flush and extend multiple row moment end. Sci p398 joints in steel construction moment resisting joints to. Numerical evaluation of the extended endplate moment connection. The earlier design methods were based on statics and simplifying. Apr 23, 2019 end plate moment connection is a spreadsheet program written in msexcel for the purpose of analysis and design of end plate moment connections per the aisc 9th edition asd manual. Evaluation of extended end plate moment connections under seismic loading by john c. The guide makes use of yield line theory in a new design philosophy extended end plate moment connections in wind and seismic applications.
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