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問題一覧
1
All slab reinforcements shall be _ clear minimum from bottom and top of slab
20mm
2
Camber all beams and girder at least _ for every 4.5m of span, except cantilevers for which the camber shall be as noted in plans but no case less than _ for every 3m span
6mm, 20mm
3
A violation of this memorandum circular as to Vertical Clearance or Navigational Span shall penalized the contractors and the contractor shall shoulder all the expenses for the alteration and/or reconstruction of the structure and a fine of _ of the original contract price
2%
4
If the actual condition of the soil is susceptible to liquefaction, ground improvement technique such as: ...... may be used
permeation grouting, jet grouting or compaction grouting
5
Footings are designed for an allowance soil bearing pressure of _
96kPa or 2000psf
6
Maintain minimum concrete cover for reinforcing steel as follows: Directly against earth, suspended slab, slab on grade
75mm, 20mm, 40mm
7
Vertical clearance above road carriageway shall be as follows: For railway/ flyover/ bridge - Vehicle clearance- Allowance for future additional road surfacing-
5.03m min, 4.88m, 0.15m
8
Min. concrete protection for reinforcement shall be _ clear for concrete deposited against the ground and _ for concrete deposited against formwork
75mm, 50mm
9
Column ties shall be protected everywhere by a covering of concrete cast slope monolithically with the core with minimum thickness of _ and not less than 40 times MSA
40mm
10
A. Welcome Arch/Overhead Boundary Marker To give allowance for future road improvement and widening, welcome arch's/overhead Boundary marker's post shall be located at _ setback from the road right-of-way (RROW) limit and shall be provided with minimum vertical clearance of _ from the roadway surface
2m, 5.33m
11
This method is usually adopted when there is no visible evidence of termite infestation. Trenches in concentric circles, squares or rectangles are dug 150mm to 220mm wide and at least 1m apart and applied with type in working solution at the rate of 8L per ln.m
cordoning
12
The vertical distance measured from the bottom of the bridge to the highest water level
vertical clearance
13
The contractor shall submit the schedule of pouring and the location of the construction joints to the structural engineer at least _ prior to the pouring for approval
4 days
14
Is the data taken from all the vessels using the waterway where the road bridge is to be constructed. It is the highest measurement measuring the distance from the lowest draft up to the main mast of vessel
height of vessel
15
Alternate bars are welded or mechanically spliced at any level and the vertical distances between these welds or splices of adjacent bars is not less than _
600mm
16
Yield strength of the reinforcing steel bars shall be _
414MPa or 6000psi
17
If the actual soil bearing capacity of the ground is less than 96 kPa at depth 1.5m, the depth of the isolated footing may be adjusted up to _ max
2m
18
Reinforcing bars shall have 25mm clear concrete cover from face of wall except for walls in contact with the ground where a minimum of _ shall be provided and for exposed faces of formed walls where the minimum shall be _ clear
60mm, 50mm
19
When soil show termite infestation, this method shall be applied. The buildings shall be thoroughly drenched with type in working solution of 24L per ln.m
drenching
20
B. Overhead Utilities and Power Lines For overhead utility and power lines crossing the roadway where traffic comprises of trucks, vertical clearance shall not be less than _ from the roadway surface to the calculated lowest point of cable sag and along the roadway and on areas designated for and frequented by pedestrians, minimum vertical clearance of _ from the surface of the sidewalk is prescribed
5.5m, 4.88m
21
Provide extra steps of ties at 100O.C for tied column reinforcement above and below beam-column connections for a distance from face of connection equal to greater of the overall thickness of column, 1/6 the clear height of column or _
450mm
22
All bedded slabs shall be reinforced with 10mm dia.at 250mm O.C each way to center of the slab and construction joints for same shall not be less than _ apart
3.65m
23
Headroom between the pedestrian walking surface and bottom of girder of the structure like railway, flyover and bridge above shall be
2m min
24
If the actual soil bearing capacity did not meet the required 96 kPa, the implementing office may opt to perform but not limited to use of:
micro piles, driven piles, bored piles, mat foundation, recommendation of the geotechnical consultant
25
The spacing of the bars at the column strips shall not be more than _ slab thickness
1.5
26
If there are two or more layers of reinforcing bars, used 25mm bar separators spaced at 1m on center and no case shall there be more than _ separators between layers of bars
2
27
Vertical clearance above road carriageway shall be as follows: For pedestrian footbridge- Allowance for future additional road surfacing- Allowance to reduce truck impact risk-
5.33m min, 0.15m, 0.3m
28
All concrete hollow blocks and ceramic blocks shall be reinforced and provide 150mmx300mm stiffener column reinforced with _ with 10mm ties at 150mm on center where chb terminates at every 3m length of chb walls
4-12mm
29
Minimum days of stripping of forms and shores shall be as follows: Foundation, Suspended slab, Beams, Walls and Columns
1, 8, 14, 21
30
NSCP section 303.1 recommends a geotechnical study be conducted for foundation design for structures two storeys or higher. A total of _ boreholes for structures less than 300 sqm in area and at least _ boreholes for larger bldg area. A max. of _ boreholes for every 200 sqm of a structure
2, 3
31
All embedded pipes for utilities etc. that pass thru beams shall not exceed _ in diameter or 1/3 beam depth whichever is less, and no pipes shall be allowed to pass thru beams vertically
100mm
32
Concrete max.size aggregate is _ and max. concrete slump of _
20mm, 100mm
33
Footing shall rest at least _ below natural grade line
1.5m