Following are the notes for a line of stadia levels. The elevation of BM-10 is 409.11 m. The stadia interval factor is 99.20 and take C = 0.18 m. Determine the values of VD, ID, HD, DE, and ELEV, and tabulate values accordingly. Perform a customary check. ● Tabulation of Data: STA BACKSIGHT S (m) BM-10 1.245 -4°25' a RR VD ID HD S (m) (m) (m) (m) (m) 2.42 · TP-11 2.044 +3°20' 1.08 TP-12 1.720 -6°40' 1.46 TP-13 2.426 -9°15' 2.08 BM-17 a FORESIGHT DE RR VD ID HD (m) (m) (m) (m) (m) 1.515 8°18' 1.438 -3°25' 1.025 10°05' 1.55 3.06 0.45 1.326 4°22' 1.45 ELEV (m)

Structural Analysis
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Chapter2: Loads On Structures
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Following are the notes for a line of stadia levels. The elevation of BM-10 is 409.11 m. The stadia
interval factor is 99.20 and take C = 0.18 m.
Determine the values of VD, ID, HD, DE, and ELEV, and tabulate values accordingly.
Perform a customary check.
●
Tabulation of Data:
STA
BACKSIGHT
S
RR
(m)
(m)
BM-10 1.245 -4°25' 2.42
TP-11 2.044 +3°20' 1.08
TP-12 1.720 -6°40' 1.46
TP-13 2.426 -9°15' 2.08
BM-17
Formulas:
Where:
C =
a
VD ID HD S
(m) (m) (m)
(m)
K = stadia interval factor
ID = KsCos(a) + C
HD = KsCos² (a) + (C)Cos(a)
VD = KsCos(a)Sin(a) + (C)Sin(a)
stadia constant
DE = RRBS + VDBS + VDFS - RRFS
ELEV B = ELEVA + DE
ID = inclined distance
Sketch:
HD = horizontal distance
VD = vertical distance
s = stadia interval or the difference between the upper stadia hair
a = observed vertical angle of elevation or depression
a
1.515 8°18' 1.55
1.438 -3°25' 3.06
1.025 10°05' 0.45
1.326 4°22' 1.45
DE = difference in elevation
ELEV = elevation
FORESIGHT
DE
RR VD ID HD (m)
(m) (m) (m) (m)
Provide a detailed sketch of the figure.
ELEV
(m)
Transcribed Image Text:Following are the notes for a line of stadia levels. The elevation of BM-10 is 409.11 m. The stadia interval factor is 99.20 and take C = 0.18 m. Determine the values of VD, ID, HD, DE, and ELEV, and tabulate values accordingly. Perform a customary check. ● Tabulation of Data: STA BACKSIGHT S RR (m) (m) BM-10 1.245 -4°25' 2.42 TP-11 2.044 +3°20' 1.08 TP-12 1.720 -6°40' 1.46 TP-13 2.426 -9°15' 2.08 BM-17 Formulas: Where: C = a VD ID HD S (m) (m) (m) (m) K = stadia interval factor ID = KsCos(a) + C HD = KsCos² (a) + (C)Cos(a) VD = KsCos(a)Sin(a) + (C)Sin(a) stadia constant DE = RRBS + VDBS + VDFS - RRFS ELEV B = ELEVA + DE ID = inclined distance Sketch: HD = horizontal distance VD = vertical distance s = stadia interval or the difference between the upper stadia hair a = observed vertical angle of elevation or depression a 1.515 8°18' 1.55 1.438 -3°25' 3.06 1.025 10°05' 0.45 1.326 4°22' 1.45 DE = difference in elevation ELEV = elevation FORESIGHT DE RR VD ID HD (m) (m) (m) (m) (m) Provide a detailed sketch of the figure. ELEV (m)
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