PPT-Trusses with no gussets - What next?

Folks I just received a rather disturbing series of pictures of new construction currently going on in New Jersey    Apparently these newstyle wood trusses are commercially available and no longer use the metal gusset plates that we are all familiar with This new breed of firefighterkillers is simply 2x4 Finger Jointed lumber yeah its not even dimensional lumber held together by little spots of glue where the webs meet the chords Check out the attached pics You also can see that these particular trusses are installed in townhousestyle occupied multiple dwellings All thats holding them up is a 2x8 or TJI sill plate thats anchor bolted to the block sidewall    Im not an engineer but it looks like its actually the dead load and   live load from above that holds the house of cards together My dad is a commercial sales manager at a large lumberyard He is going to further investigate the manufacture and engineering of this product and Ill keep you advised of anything important to our operational safety   If a standard gussetplated truss will fail in less than five minutes of fire exposure how long will these toothpicks stand up How about the added weight of 2 or 3 firefighters with equipment trying to make a vent hole and removing some of the engineered dead load providing the stability to the system  Just food for thought This stuffs out there Its just a matter of   time til it pops up around here Many nationally recognized instructors are now recommending popping a decentsized inspection hole in the ceiling immediately inside the point of entry and on each floor of any building with smoke or fire . These guidelines should not be considered to be the only method for erecting and bracing of a roof system TPIC disclaims any responsibility fo r damages arising from the use application or reliance on these guidelines 1 Check Trusses while they are OWNER’S MANUAL/INSTALLATION INSTRUCTIONS 052912-2CUSTOMER MUST RECEIVE THIS MANUAL UPON INSTALLATION—THIS MANUAL CONTAINS SAFETY, INSTALLATION, OPERATION, CARE AND MA INTERNATBuilding INTERNATBuildingWood trusses are engineered frames of lumber joined by galvanized steel connector plates, referred to commonly wood floor trusses are being used in residential and com 2 Common Types of Trusses gusset plate I. Truss Bridge Gussets Background Chapter 7. University of Engineering & Technology, Taxila. 1. Properties of Trusses. . Truss is a frame structure in which all the members have axial forces due to the following facts:. Members are arranged in triangles for stability.. Educational . Presentation. Introduction. Building Designers need to specify dead and live loads of both fire sprinkler systems and other load requirements imposed under the model building codes. . Truss Designers are responsible for incorporating the additional load from the fire sprinkler systems into the truss design. . Objectives. To introduce a truss-structure system. To define truss. To demonstrate the types of trusses . 6 - . 3. Introduction. For the equilibrium of structures . which are . made . up . of several connected parts, the . Overview. Revised . 3/23/2017. SBCA.  has been the voice of the structural building components industry since 1983, providing educational programs and technical information, disseminating industry news, and facilitating networking opportunities for manufacturers of roof trusses, wall panels and floor trusses. . Roof Trusses. Trusses . are . triangular frame. works, consisting of . axially . loaded members . They . are . more efficient in resisting external loads. . as the . cross . section of . all the members . Overview. Revised . 2/2. /2017. SBCA.  has been the voice of the structural building components industry since 1983, providing educational programs and technical information, disseminating industry news, and facilitating networking opportunities for manufacturers of roof trusses, wall panels and floor trusses. . Aug 2010. Dec 2010. Aug 2011. Dec 2011. Aug 2013. Dec 2013. Dec 2014 KL. Answer Guideline. Categories of buildings. Large span, low rise buildings. Multi-storey structures . Can you think of examples of buildings with long span roof construction?. What is a truss? . A truss is . a structural unit made from . straight bars that . form . triangles. or . other stable, rigid shapes. . The . simplest form of a truss . is . one single triangle..  . To introduce a truss-structure system. To define truss. To demonstrate the types of trusses . 6 - . 3. Introduction. For the equilibrium of structures . which are . made . up . of several connected parts, the .