... Analysis – Tínhtoáncốtthépcho cấu kiện Bước 6: Tínhtoán bê tông cốtthép • Tínhtoáncốt thép, không đảm bảo cần phải quay lại từ bước để chọn lại kích thước, chọn lại bê tông, nhóm thép để ... trường hợp tínhtoáncho thành viên công trình kết cấu pương án • Verification: tínhtoán kiểm tra Phương án áp dụng cho trường hợp tínhtoáncho cấu kiện đặt cốtthép trước, đặt tải tínhtoán kiểm ... • Tínhtoán thiết kế bê tông cốtthépcho cấu kiện đưa vào công trình tínhtoán nội lực • Tínhtoán thiết kế bê tông cốtthépcho cấu kiện riêng rẽ đặt tải độc lập IV.1 THIẾT LẬP TIÊU CHUẨN CHO...
... lower deviations 13 Fundamental deviation It is one of the two deviations which is conventionally chosen to define the position of the tolerance zone in relation to zero line, as shown in Fig 3.4...
... stress in the bolts After the core diameter is obtained, then the nominal diameter of the bolts is chosen from *tables It may be noted that bolts of less than 12 mm diameter Fb = * In the absence...
... Diameter of bolt Fig 11.11 Design profile of the nut and bolt 11.5 Location of Screwed Joints The choice of type of fastenings and its location are very important The fastenings should be located ... then for coarse threads, dc = 0.84 d, where d is the nominal diameter of bolt Glasspaper Axe for chopping wood Electric sander for smoothing wood Chisel for shaping wood Simple machine tools Note ... pitch of the studs obtained above lies within 100 mm to 150 mm, therefore the size of the bolt chosen is satisfactory ∴ Size of the bolt = M 24 Ans Example 11.7 A mild steel cover plate is to...
... bolts, numbering from four to twelve depending upon the diameter of shaft The number of bolts may be choosen from the following table Table 13.2 Number of bolts for marine type flange coupling [According...
... shall be taken equal to the diameter of the fulcrum pin so that the spares are reduced Instead of choosing a thick lever, the pins are provided with a boss in order to provide sufficient bearing...
... 419 12 = × = 3.2 12 131 I yy Since the value of I xx lies between and 3.5, therefore I-section chosen is quite satisfactory I yy Notes : The I-section of the connecting rod is used due to its...
... taking dc = 33 mm, gives higher principal stresses than the permissible values So core diameter is chosen as 38 mm 662 n A Textbook of Machine Design σ ec 200 , i.e = 100 N/mm 2 F S We know that...