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Showing content with the highest reputation on 12/29/16 in all areas

  1. FYI- Video is more related to confined mansonry but shows the out of plane behaviour of wall. Might be of interest to few. Thanks.
    2 points
  2. Salam Dear Fellows In SEFP first ever meeting, it was discussed to register SEFP as PEB (Professional Engineering Body) affiliated with PEC to contribute to the engineering community positively and give CPD to registered members. We are here with some ideas and concepts in common like structural engineering and sharing. Hope you all would like this idea of registration. Rregistration/guidelines form is attached for reference to study and to discuss the process and willingness of the members. Regards RegistrationRenewal Form for PEB.doc
    2 points
  3. For the case of frame structure, the key is to have free standing masonry, i.e. provide gaps b/w masonry and frame on sides (between masonry and frame column) and top (between masonry and frame beam) and have it anchored so that it doesn't fall incase of a seismic event (this is very important or the wall will fall down in case of a seismic event). You can also find the attached example useful in understanding how free standing masonry should be anchored to structural system. Masonry Veneer Shelf Angle Design.pdf
    2 points
  4. Dear Engineer, KPK Seismic Field Practicing Manual is attached. Field Practice Manual on basics of good construction practices.pdf Thanks.
    1 point
  5. Dear All, While browsing the internet, I came across the following confined masonry guidelines available free to public. They are very informative and would add value to you design practise. Source: http://www.confinedmasonry.org Enjoy. Confined Masonry Earthquake Resistant Guideline .pdf Construction-Guide-for-Low-Rise-Confined-Masonry-Buildings.pdf Pakistan_CM-manualv3.0.3TomSchacher.pdf Pakistan_confined-masonry-english.pdf Pakistan_ERRA_Guideline_CM.pdf
    1 point
  6. Very vital information, and in urdu as well for understanding of all. Must be shared with as many construction related people as we can. Thanks @Junaid! for sharing such an important document. Well done!
    1 point
  7. W.salaam Waqas, We have various Seismic-force resisting systems defined in different codes/standards with different nomenclature. You can study these Systems in detail in these tables; BCP SP-2007, Table 5.13-Structure Systems ASCE 41-13, Seismic Evaluation and Retrofit of Existing Buildings,Table 3-1,Common Building Types ASCE/SEI 7-10, Minimum Design Loads for buildings & other structures,Table 12.2-1 Design Coefficients and Factors for Seismic Force-Resisting Systems Modelling Structure either as BARE FRAME or FRAME with MASONRY INFILL in ETABS/SAP/STAAD PRO/ROBOT Structures/Seismostruct is the designer design approach that how he want to resist the gravity/lateral Loads. By Modelling wall in model it becomes a DUAL System (Concrete Frame with masonry shear walls) BUT the idealization of masonry walls is not as simple as other elements like Beams/columns/slabs/RC Shear walls etc. It requires more experties/understanding (Study Section 11.4-Masonry infills of ASCE 41-13,Seismic Evaluation and Retrofit of Existing Buildings for detail). Proper anchorage should be provided b/w masonry and RC frame. We mostly/commonly design our Concrete structures as BARE FRAME (Moment resisting frame without Infill walls) and assign wall load on the beams. By doing this we are neglecting the masonry walls stiffnesses which results more ductile frame (Ductility is more desirable in structures).Proper steel reinf. detailing is required and gap filled with thermopore or any other insulating material is provided b/w the RC frame and masonry wall (inorder to prevent the hammering action of masonry on RC Frame during EQ). Most of the 2,3 story houses are constructed as CONFINED MASONRY STRUCTURES and these structures perform very well in EQs.
    1 point
  8. basically M11 will be horizontal leg of stirrup, M22 will be longitudinal beam reinforcement and check shear too, for vertical parts of stirrups.
    1 point
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