- Problem 2 The Data Of The Floor Framing Plan Are Given Below The Positive And Negative Moment Sections Of Beam Gh Is To 1 (60.47 KiB) Viewed 11 times
fc =49 fy= 340 mpa
- Problem 2 The Data Of The Floor Framing Plan Are Given Below The Positive And Negative Moment Sections Of Beam Gh Is To 2 (39.55 KiB) Viewed 11 times
(PROBLEM 2) Using the rounded height, calculate the maximum negative moment in
beam GH due to loads using approximate method of analysis in kN.m.
PROBLEM 2 The data of the floor framing plan are given below. The positive and negative moment sections of beam GH is to be checked. The superimposed deadload is 10 kPa and the unit weight of concrete is 24 kN/m³. Given: Table 406.5.2 Approximate Moments for Non- Prestressed Continuous Beams and One-Way Slabs SET Concrete cover-60mm Stirrups diameter-12mm fc(MPa) f(MPa) Moment 42 Location 420 L-6.5m; L-8.0m M 0,1,2,3(A) S-3.0m Condition Discretinous end integral with spport 49 4,5,6 (8) 340 1/24 Liveload-2.40kPa End span b-400mm 56 7,8,9 (C) Positive 270 Discontinues end unrestrained w/11 Column-600mm by 600mm Interior spans All w/16 Member buit Integrally with mupporting spandrel beam w/24 Interior face of exterior port Member built integrally with pporting column 4/16 Exterior ace of first Two spans 4.4./9 interior More than two support w/10 Face of Ober supports AD Face of all a) Sabe with spans not exceeding 3m b) Beams where vallo of sum of column stiffnesses to bear stiffess exconds & at cach end of pan w/12 supports staying (a) or (b) 8-28 To calculate negative moments, f, shall be the average of the adjacent clear span lengths B 4-28 Negain!! 27°C Clou
6-28 4-28 Table 409.3.1.1 Minimum Depth of Non-Prestressed Beams Support Condition Minimum h 4/16 /18.5 Simply supported One end continuous Both ends continuous Cantilever 4/21 PExpressions applicable for normal weight concrete and /,-420 MPa. For other cases, minimum A shall be modified in accordance with Sections 409 3.1.1.1 through 409.3.1.1.3, as appropriate. not exceeding m Beams whe ralo of sum of celem afhe supports 4/12 fying (1) or (b) to bear afm exceeds 5 at each end of pan 01 To calculate negative moms, , shall be the average of the jent clear span length 409.3.1.1.1 For fy other than 420 MPa, the expressions shall be multiplied by 409.3.1.1 in Table (0.4+/,/700), 409.3.1.1.2 For non-prestressed beams made of lightweight concrete having w, in the range of 1440 to 1840 kg/m', the expressions in Table 409.3.1.1 shall be multiplied by the greater of (a) and (b): 1.65-0.0003w,: b. 1.09.