Building construction site is common and safe hidden trouble 45 kinds
One, face safety of edge, mouth of a cave not to defend reach the designated position
1, floor faces an edge to was not installed face frontier defence to protect
" standard of technology of security of exercise of building construction altitude " (JGJ80-2016) 4.1.1 regulations: Fall when 2m and above enter high datum plane to face an edge to work all right, should be in face setting of empty a side to defend baluster, should use set net of safety of close eye pattern or tool formula column board closes.
2, stair was not installed temporarily armrest
" standard of technology of security of exercise of building construction altitude " (JGJ80-2016) 4.1.2 regulations: Statified platform of the stair mouth of construction, stair and ladder Duan Bian, should install defend baluster.
3, did not set under the windowsill of 800mm face frontier defence to protect
" standard of technology of security of exercise of building construction altitude " (JGJ80-2016) 4.2.6 regulations: The metope vertical stroke that is in be born reachs frame structure to be in to mouth of a cave under the vertical stroke of 800 ㎜ to height of mouth of a cave, windowsill pouring be over the mouth of a cave when concrete builds wall system without build by laying bricks or stones, should press face an edge to defend requirement setting defends baluster.
4, the balcony was not set face frontier defence to protect
5, elevator well mouth of a cave did not install safe safeguard
" standard of technology of security of exercise of building construction altitude " (JGJ80-2016) 4.2.2 regulations: Elevator mtl pithead should be installed defend the door, its should not be less than 1.5m highly, defend the end end the door is apart from ground height to should not be more than 50 ㎜, should install block baseboard. At the same time 10m of every other of hoistway a person operating from within in coordination with outside forces and set a level safety net at be being added 2 layers not quite.
6, obligate mouth of a cave did not install safe safeguard
" standard of technology of security of exercise of building construction altitude " (JGJ80-2016) the 2nd 4.2.1 regulations: Should be not dimension of short edge of perpendicular mouth of a cave to be 25mm ～ when 500 ㎜, should use bear the weight of the cover board that force satisfies use requirement is enclothed, cover board all around lay aside should balanced, and should prevent cover board shift.
The 3rd regulation: Should be not side of short side of perpendicular mouth of a cave to grow for 500 ㎜ ～ when 1500 ㎜, should use special design cover board to enclothe, should take fixed step;
7, hind irrigate belt did not install safe safeguard
2, not agree with with report temporarily add up to normative requirement
1, switch-disconnector was not installed by the regulation before be not transparent breaker, fuse
" construction site uses standard of electric security technology temporarily " (JGJ46-2005) the 3rd 8.2.2 regulations: Switch-disconnector should set park power source to be carried into the line, visible disjunction is had to nod when should using disjunction, can disconnect at the same time the segregation electric equipment with extremely all power source. If adopt the breaker that visible disjunction place has when disjunction, can set switch-disconnector not additionally;
2, attaint of switch box door, be short of break not seasonable rehabilitate or change
3, 4 lines make three-phase low-pressure power system does not press line of formulary join PE (protect 0 lines)
4, " one leakage much chance "
" construction site uses standard of electric security technology temporarily " (JGJ46-2005) 8.1.3 regulations: Every equipment that use phone must have case of respective appropriative switch, forbidden with same direct control reachs a switch case 2 times 2 above use electric device (contain socket) .
5, 2 times side did not install electric welder protector getting an electric shock (or wiring is non-standard)
" construction site uses standard of electric security technology temporarily " (JGJ46-2005) 9.5.3 regulations: Machinery of alternating current solder should deserve to install prevent side protector getting an electric shock 2 times.
6, 2 times the line receives electric welder at will grow not to do insulation to handle
7, illicit pull chaos to receive
Leakage is protected on termination report
Need not plug
8, crust of mechanical equipment metal is not done by the regulation receive 0 protection
" construction site uses standard of electric security technology temporarily " (JGJ46-2005) 5.2.1 regulations: In TN system, following and electric equipment is not electrified appear but electric part should do protection to receive 0:
Appliance of 1. electric machinery, transformer, electric equipment, illume, hand-held is dynamoelectric the metallic crust of the tool;
The metallic component of gearing of 2. electric equipment;
9, setting of iodic tungsten lamp asks under the standard highly, metallic rear cover did not protect 0 lines by formulary join
" construction site uses standard of electric security technology temporarily " (JGJ46-2005) 10.3.1 regulations: The metallic crust of illumination luminaries must join with PE line photograph.
10.3.2 regulations: Lamps and lanterns of the 220V outdoor is apart from the ground to be not gotten under 3m, indoor 220V lamps and lanterns is apart from the ground to be not gotten under 2.5m.
10, high-power electric equipment is used inside the dormitory, illicit pull chaos to receive
Electromagnetism furnace
Illicit pull chaos to receive
11, protective equipment does not apparel by the regulation when the electric welder works
" construction site uses standard of electric security technology temporarily " (JGJ46-2005) 9.5.5 regulations: Protective equipment must apparel when machinery of use electric welding solders. Forbidden open air risks rain to undertake electric welding operation.
3, scaffold is built set not requirement of up to specification
1, even the wall the setting nots agree with add up to normative requirement:
(1) even the wall quantitative setting nots agree with add up to normative requirement;
(2) even the wall establish lever to be in join to nod only with side of inside and outside.
2, foundation of scaffold of be born type does not do processing
" building construction buckles a hand of type steel pin to wear safe technology standard " (JGJ130-2011) the 2nd 7.3.3 regulations:
Bolster plate should use length not less than 2 cross, ply is not less than 50mm, width not small the wooden bolster plate of 200 ㎜.
3, scaffold does not install scissors to maintain by the regulation or scissors maintains a setting to not agree with add up to normative requirement
" building construction buckles a hand of type steel pin to wear safe technology standard " (JGJ130-2011) 6.6.3 regulations: Height reachs the double platoon scaffold of above to answer in 24m outer side establishs a face to install scissors to maintain continuously completely; Height is in scaffold of the sheet under 24m, double platoon, all must two end, corner reachs outer side intermediate interval does not exceed 15m establish a face to go up, each install a scissors to maintain, answer to be installed continuously to the top by the bottom.
(2) hang scissors of the scaffold that carry type to maintain not successive setting
" building construction buckles a hand of type steel pin to wear safe technology standard " (JGJ130-2011) 6.10.10 regulations: Dangerous carry wear outside scissors establishing a range is maintained should from bottom to top is installed continuously.
4, hang setting of I-steel of the scaffold that carry type to not agree with add up to normative requirement
(1) dangerous carry paragraph of length to be more than fixed end length to spend
" building construction buckles a hand of type steel pin to wear safe technology standard " (JGJ130-2011) 6.10.5 regulations: Dangerous carry girder to hang carry length to should decide by the design, secure paragraph of length to should not be less than 1.25 times what carry paragraph of length more dangerous.
(2) setting of amount of fixed end anchorage annulus does not accord with a requirement
" building construction buckles a hand of type steel pin to wear safe technology standard " (JGJ130-2011) 6.10.5 regulations: Profiled bar hangs the solid that pick a surname to decide end to should use 2 (right) reach muscle of above U profiled bar ring tab or anchorage solid bolt and building construction Liang Ban are fixed.
(3) inclined pull wire rope setting not to accord with a requirement
Inclined pull wire rope setting not to accord with a requirement, do not remove stabilization
(4) setting of span of wire rope clip does not accord with a requirement
" wire rope safety, use and safeguard " (GB/T29086-2012) 5.2.4.5 regulations: The distance A that wire rope places is equal to 6 ～ 7 times diameter of wire line.
Safety of the level on 5. scaffold does not defend reach the designated position
(1) first hard defend the setting is not close
(3) wear body and wall body clearance to be more than 25cm not to have safe preventive measure
4, pattern plate tie-in is built set not requirement of up to specification
1, do not sweep the floor by normative requirement setting lever
" standard of technology of security of building construction pattern plate " (JGJ160-2008) the 2nd 6.1.9 regulations: Ground 200mm altitude is apart from in pillar bottom, the program that even if issue a horizontal stroke to go up,way of edge freely standard should press is set sweep the floor lever.
2, pay mould bases perch receive at will long
" standard of technology of security of building construction pattern plate " (JGJ160-2008) the 4th 6.1.9 regulations: Steel tube sweeps the floor pull rod of lever, level should use a butt joint.
The 3rd 6.2.4 regulations: Pillar is received long forbidden build receive, must use a butt joint to buckle a join, the butt joint connect of column of photograph adjacent coexistence must not be inside synchronism, and vertical stroke of edge of butt joint connect shoulds not be to stagger distance be less than 500mm, each connect center is apart from advocate node is unfavorable the 1/3 that is more than step pitch.
{! - - PGC_COLUMN- - }The 4th regulation: Forbidden the steel tube pillar upside and pillar of next Duan Gang canal are stagger and fixed go up at horizontal pull rod.
3, photograph adjacent establishs lever connect twice to be inside synchronism
" standard of technology of security of building construction pattern plate " (JGJ160-2008) the 3rd 6.2.4 regulations: Pillar is received long forbidden build receive, must use a butt joint to buckle a join, the butt joint connect of column of photograph adjacent coexistence must not be inside synchronism, and vertical stroke of edge of butt joint connect shoulds not be to stagger distance be less than 500mm, each connect center is apart from advocate node is unfavorable the 1/3 that is more than step pitch.
4, the top is held in the palm appear length exceeds normative requirement
" standard of technology of security of building construction pattern plate " (JGJ160-2008) the 2nd 6.1.9 regulations: Bottom of steel tube pillar should establish stow-wood and base, coping should be set adjustable hold U in the palm model hold in the palm with arris bridge between two side if have space, must wedge is close, its screw extends steel tube coping to must not be more than 200mm, the clearance of screw external diameter and internal diameter of pillar steel tube must not be more than 3mm, should make sure fluctuation is homocentric when installation.
5, establish lever to extend length of lever of level carrying a layer on the head to exceed normative requirement
" building construction buckles a hand of type steel pin to wear safe technology standard " (JGJ130-2011) 6.9.1 regulations: Full hall tie-in, establish lever to extend line of center of lever of level carrying a layer on the head to should not exceed 0.5m to the length A of strong point.
" standard of technology of security of building construction pattern plate " (JGJ160-2008) the 3rd 6.1.9 regulations: Adjustable raise the pillar top that holds bottom in the palm to answer even if the edge is transverse install a level pull rod.
6, horizontal lever is one-way setting
" standard of technology of security of building construction pattern plate " (JGJ160-2008) the 3rd 6.1.9 regulations: Sweep the floor the span between lever and coping level pull rod, the step pitch of horizontal pull rod that in contented pattern plate the design decides asks the condition falls, after undertaking allocation on average deciding step pitch, in each step pitch even if place is transverse should establish a level drag link each.
7, do not maintain by scissors of normative requirement setting
" building construction buckles a hand of type steel pin to wear safe technology standard " (JGJ130-2011) 6.9.3 regulations:
Periphery of the 1 side outside wearing body and interior are vertical, transverse 8m of every 5m ～ , answer to install successive vertical stroke to be maintained to scissors to the top by the bottom, scissors maintains width to should be 5m ～ 8m;
2 coping node plane is maintained to should install successive level scissors to maintain to scissors in vertical stroke. Exceed 8m when the height that prop up, or construction total load is more than 15kN/ ㎡, or the tie-in that centers line load to be more than 20kN/m, sweep the floor the setting layer of lever should install horizontal scissors to maintain. Horizontal scissors is maintained to plane of the bottom that wear body distance and horizontal scissors maintain span to should not be exceed 8m.
8, mould bases and outside frame be linked together
" building construction buckles a hand of type steel pin to wear safe technology standard " (JGJ130-2011) 9.0.5 regulations: The duct that must not send concrete and mortar rope of wind of pattern plate bracket, cable, pump fixed wearing body to go up (point to scaffold) .
5, mechanical equipment
1, seeper of foundation of mast of elevator of tower machine, construction, dragon
" installation of crane of building tower type, use, disassemble emergency decree " (JGJ196-2010) 3.1.2 regulations: All round the foundation due catchment establishment;
" construction elevator safe practice " (GB1005-2007) 4.1.2 regulations: All round the foundation due catchment establishment.
2, tower machine sling knots length nots agree with add up to normative requirement
" installation of crane of building tower type, use, disassemble emergency decree " (JGJ196-2010) 6.2.3 regulations: When the end of wire rope the ministry is used knot when solid is received, knot 20 times what partial length must not be less than diameter of wire line, should not be less than 300mm.
3, knot of tower machine sling is used
" installation of crane of building tower type, use, disassemble emergency decree " (JGJ196-2010) 6.25 regulations: Sling must be made by whole wire rope, there must not be contact among.
6.2.6 regulations: Wire rope is forbidden using knot means is knot condole content.
4, tower machine hook hooks device without anticreep
" installation of crane of building tower type, use, disassemble emergency decree " (JGJ196-2010) 6.3.5 regulations: Hook should set wire rope anticreep to hook device.
5, rings uses whorl steel
" concrete structure designs a standard " (GB50010-2010) 9.7.6 regulations: Rings should use HPB300 class reinforcing steel bar to make.
6, blemish of existence of tower machine wire rope
(1) steel wire is squeezed piece
(2) fracture of wire
(3) wire rope core is squeezed piece
(4) diameter of wire line is local reduce
(5) rope squeeze piece / screwy
(6) wire rope is local squash
(7) twist together
(8) waviness
(9) basket shape distortion
(10) rustily
Basis " crane wire rope maintains, safeguard, installation, examine and discard as useless " (GB/T5972-2009) of the 3.5th regulation discard as useless the standard undertakes deciding.
7, mechanical drive place does not have safe shield
" construction machinery uses emergency decree " (JGJ33-2012) the 3rd 8.2.3 regulations: The safe shield of the gearing such as gear opening type, leather belt annulus should all ready and reliable.
8, number of the work inside nacelle exceeds normative requirement
" emergency decree of scaffold of type of building construction tool " (JGJ202-2010) 5.5.8 regulations: Staff of the work inside nacelle should not exceed 2.
9, work staff safety belt is not to be hanged on special and safe rope
" emergency decree of scaffold of type of building construction tool " (JGJ202-2010) 5.5.10 regulations: The work staff inside nacelle should adorn safety helmet, department safety belt, on the safe rope that should hang safe lock correctly buy to be installed in independence.
10, front bracket lays aside nacelle hitch to go up in parapet
" emergency decree of scaffold of type of building construction tool " (JGJ202-2010) 5.4.7 regulations: The bracket before hitch is forbidden prop up go up in parapet, outside parapet or the building raises brim margin.
11, knot of safe rope bolt is on nacelle bracket
" emergency decree of scaffold of type of building construction tool " (JGJ202-2010) 5.5.1 regulations: Safe rope should be secured do not get locally reliably in the building have link with any place on nacelle.
12, nacelle matchs heavy volume to not agree with add up to normative requirement
" altitude exercise nacelle " (GB19155-2017) 5.2.7 regulations: Below regular job status, the fights capsize moment of force and capsize moment of force ratio of nacelle hitch must not is less than 2.
13, nacelle did not bring mount spacing plant (or attaint did not change)
" emergency decree of scaffold of type of building construction tool " (JGJ202-2010) 5.5.3 regulations: Nacelle should bring mount spacing plant, appropriate installs next spacing device.
14, safe distance did not maintain when gas cylinder is used
" construction machinery uses emergency decree " (JGJ33-2012) 12.9.7 regulations: When exercise, the distance between acetylene bottle and oxygen gas cylinder is not gotten little at 5m, gas cylinder and the distance between bright fire are not gotten little at 10m.
