CN104831750B - Underground garage roof design load and engineering vehicle load comparison construction method - Google Patents
Underground garage roof design load and engineering vehicle load comparison construction method Download PDFInfo
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- CN104831750B CN104831750B CN201510304383.6A CN201510304383A CN104831750B CN 104831750 B CN104831750 B CN 104831750B CN 201510304383 A CN201510304383 A CN 201510304383A CN 104831750 B CN104831750 B CN 104831750B
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- top plate
- parking garage
- underground parking
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Abstract
The invention belongs to the crossing field of design of a building structure and a construction technology, and particularly relates to an underground garage roof design load and engineering vehicle load comparison construction method. The method includes the following steps that firstly, the allowable load design value of an underground garage roof is calculated; secondly, equivalent uniformly distributed load design value of an engineering vehicle is calculated; thirdly, the allowable load design value of the underground garage roof and the load design value of the engineering vehicle are compared for calculation; fifthly, the driving boundary line of the engineering vehicle is formed through painting to meet the requirement; sixthly, the engineering vehicle runs on the underground garage roof. Compared with a traditional construction method, the engineering vehicle can directly reach the needed position of a main building from the garage roof, in-situ conveying of main building concrete is achieved, engineering materials can be directly transported in place, secondary carrying of construction materials is omitted, the construction period can be substantially shortened, a large amount of comprehensive construction cost is saved, and the environment-friendly construction requirement for high efficiency and energy conservation is met.
Description
Technical field
The present invention relates to a kind of top plate of underground parking garage design load and contrast construction method with engineering truck load, belong to building
Structure technique of design and construction crossing domain, it is adaptable to (upper surface need to lay anti-impact for cross beam, primary-secondary beam, putamina and superposed box
Cut steel plate) etc. Structural Floor System all top plate of underground parking garages on travel calculating and the construction of engineering truck.
Background technology
In recent years, the Underground Garage form hugely of through place is set in high stored building group, designs the most throughout the country
In extensively apply.But presently relevant design specification and job specfication lack the calculating mould travelling engineering truck on top plate of underground parking garage
Type with calculate construction method, design, build, the unit explicit order such as management and matter peace station: " forbid to travel work on top plate of underground parking garage
Journey vehicle ".Therefore the concrete mixer truck of main building construction stage can only rest on the construction road outside garage retaining wall, mixed
The horizontal pipe conveying of solidifying soil hundreds of meters to be passed through can arrive main building position, due to horizontal pipe overlength, stifled pump occurs often
Phenomenon, makes concreting efficiency be greatly lowered；The engineering trucks such as transport of materials and shed deckhead earthing, also can only rest in
Secondary Transport after unloading on construction road outside underground garage retaining wall, causes construction comprehensive cost and construction period significantly
Increase, extreme influence construction speed and economic benefit, it has also become a national Extensive difficult problem urgently to be resolved hurrily.
Summary of the invention
The technical problem to be solved in the present invention is: provide a kind of top plate of underground parking garage design load and engineering truck load pair
Compare construction method, it is to avoid the Secondary Transport such as construction material, top plate of underground parking garage earthing；Concrete mixer truck and delivery pump can be made
Directly arrive main building position to carry out carrying in situ, construction period can be greatly shortened and reduce construction comprehensive cost.
Top plate of underground parking garage design load of the present invention contrasts construction method with engineering truck load, takes following step
Rapid:
One, top plate of underground parking garage allowable load design load calculates:
1) top plate of underground parking garage overburden load design load is calculated as follows:
q1sj=k1hγ
In formula: k1Dead load partial safety factor takes 1.2；
H top plate of underground parking garage design thickness of earth covering (m)；
γ earthing unit weight takes 18KN/m3；
2) top plate of underground parking garage allows that live load design load is calculated as follows:
q2sj=k2qb
In formula: k2Live load partial safety factor takes 1.3；
qbLive load standard value (KPa) is allowed in design；
3) top plate of underground parking garage allowable load design load calculates:
qsr=q1sj+q2sj
In formula: q1sjTop plate of underground parking garage overburden load design load (KPa)；
q2sjTop plate of underground parking garage allows live load design load；
Two, engineering truck equivalent uniform load design load calculates:
1) engineering truck total load head design load is calculated as follows:
P=k (p1+p2)
In formula: k engineering truck driving dynamics coefficient takes 1.3；
p1Engineering truck deadweight (KN)；
p2Engineering truck loading deadweight (KN)；
2) engineering truck equivalent uniform load active area is calculated as follows:
A=(a+tan45 ° × 2h) × (b+tan45 ° × 2h)
In formula: outer wheelspan (m) about a engineering truck；
B engineering truck wheel base (m)；
H top plate of underground parking garage thickness (m)；
3) engineering truck equivalent uniform load design load is calculated as follows:
qsj=P/A
In formula: P engineering truck total load head design load (KN)；
A engineering truck load action reference area ()；
Three, top plate of underground parking garage allowable load design load and engineering truck design load comparing calculation:
qsr≥qsj
In formula: qsrTop plate of underground parking garage allowable load design load (KPa)；
qsjEngineering truck equivalent uniform load design load (KPa)；
Four, engineering truck traveling maximum wheel load effect lower roof plate Punching Shear checking computations:
FR≥Fl=(0.7 βhft+0.25σpc.m)ηumh0
Fl=γ F
um=2 [(b+2h0/2)+(a+2h0/2)]
In formula: FRCutting-bearing capacity (KN)；
FlLocal Loads design load (KN)；
η local loads area shape affect coefficient；
βsLong limit when local loads area is rectangle and the ratio of short side dimension, βsIt is not more than 4, works as βsLess than 2
Time take 2；
βhInfluential factor of sectional height, takes 1.0 when Bars In Poured Concrete Slab thickness h no more than 800；When Bars In Poured Concrete Slab thickness h not
0.9 is taken during less than 2000；Therebetween by linear interpolation value；
ftConcrete axial tensile strength design load；
σpc.mCalculate the effective compressive pre-stress of both direction concrete on perimeter of section and take 1.0～3.5N/mm2.(get off
Storehouse top board is to take this value during prestress reinforcement)；
umCalculate the girth in cross section, take distance local loads area h0The least favorable girth of plate vertical cross-section at/2；
h0Effective depth of section ()；
γ Local Loads partial safety factor takes 1.3；
F engineering truck rear axle gravity standard；
A, b respectively engineering truck trailing wheel lands length and width.
Five, meet require brushing engineering truck travel boundary line
In top plate of underground parking garage allowable load design load zoning, metallic finishe brushing engineering truck is used to travel boundary line,
To guarantee the structural safety of top plate of underground parking garage；
Six, engineering truck travels on top plate of underground parking garage
According to engineering truck equivalent uniform load design load less than or equal to top plate of underground parking garage allowable load design load
Principle, travels in arranging engineering truck traveling boundary line on top plate of underground parking garage.
In described step 5, metallic finishe uses red flashing light paint.
The invention has the beneficial effects as follows:
1) scientific algorithm and the construction method of engineering truck traveling are provided for the main building construction in huge area underground garage；
2) engineering truck such as commerical ready-mixed concrete trucd mixer and delivery pump, construction material transport, top plate of underground parking garage earthing is made
Directly arrive from the top plate of underground parking garage last time and need position, it is to avoid Secondary Transport, make efficiency of construction significantly improve, significantly
Shorten construction period, a large amount of saving construction comprehensive costs, there is significant economic benefit and application value widely；
3) on top plate of underground parking garage, earthing can once transport and puts in place, and dust from construction sites is greatly reduced；Concrete conveyance one step
Putting in place, a large amount of minimizing blocks up concrete waste and the building waste that pump causes；Fill wall building block transport to settle at one go, reduce two in a large number
The secondary building block loss having bad luck generation and building waste.Meet the requirement of environmental protection and energy saving and green construction, there is significantly society's effect
Benefit.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
In figure: 1, the outer wheelspan 2 of vehicle, front and back wheel wheelbase 3, vehicle rear wheel 4, engineering truck travel boundary line 5, get off
Storehouse top board.
Detailed description of the invention
Below in conjunction with the accompanying drawings the present invention is described further:
As it is shown in figure 1, top plate of underground parking garage design load of the present invention contrasts construction method with engineering truck load,
Take following steps:
One, top plate of underground parking garage allowable load design load calculates
1) case study on implementation overview
After the construction of A, certain engineering project main building, then carry out the subitem engineering constructions such as top plate of underground parking garage 5 earthing；
B, top plate of underground parking garage arrangement of reinforcement are HRB400 level double-layer double-direction φ 10@150, principal rod protective layer thickness 15, mixed
Solidifying soil strength grade C30, Bars In Poured Concrete Slab thickness 180, upper design thickness of earth covering 1.5m, allows live load standard value 5KPa；
C, plan, in the main building construction stage, travel 10m from top plate of underground parking garage 53Concrete mixer truck, its deadweight is
180KN, concrete load-carrying is 10 × 24=240KN.
D, concrete-agitating vehicle foreign steamer are 2150 away from 1 actual measurement, and front and back wheel wheelbase 2 actual measurement is 5600；
E, take 550KN level vehicle rear axle gravity standard according to " highway bridge and culvert design general specification " (JTG D60-2004)
140KN, vehicle rear wheel 3 gravity standard takes 140/2=70KN, and vehicle rear wheel 3 lands width x length=600 × 200.
2) top plate of underground parking garage overburden load design load is calculated as follows:
q1sj=k1H γ=1.2 (1.5 × 18)=32.4KPa
In formula: k1Dead load partial safety factor takes 1.2；
H top plate of underground parking garage design thickness of earth covering 1.5m；
γ earthing unit weight takes 18KN/m3(according to " loading code for design of building structures " GB50009 2012).
3) top plate of underground parking garage allows that live load design load is calculated as follows:
q2sj=k2qb=1.3 × 5=6.5KPa
In formula: k2Live load partial safety factor takes 1.3；
qbLive load standard value (KPa) is allowed in design.
4) top plate of underground parking garage allowable load design load calculates:
qsr=q1sj+q2sj=32.4+6.5=38.9KPa
In formula: q1sjTop plate of underground parking garage overburden load design load (KPa)；
q2sjTop plate of underground parking garage allows live load design load.
Two, engineering truck equivalent uniform load design load calculates
1), engineering truck total load head design load is calculated as follows:
P=k (p1+p2)=1.3 (180+240)=546KN
In formula: k engineering truck driving dynamics coefficient takes 1.3；
p1Engineering truck deadweight 180 (KN)；
p2Engineering truck loading deadweight 240 (KN).
2) engineering truck equivalent uniform load active area is calculated as follows:
A=(a+tan45 ° × 2h) × (b+tan45 ° × 2h)
=(2.15+tan45 ° × 2 × 0.18) × (5.6+tan45 ° × 2 × 0.18)=2.51 × 5.96=14.96
In formula: the outer wheelspan 2.15 (m) of a engineering truck；
B engineering truck wheel base 5.6 (m)；
H top plate of underground parking garage thickness 0.18 (m).
3) engineering truck equivalent uniform load design load is calculated as follows:
qsj=P/A=546/14.96=36.5KPa
In formula: P engineering truck total load head design load (KN)；
A engineering truck load action reference area ().
Three, top plate of underground parking garage allowable load design load and engineering truck design load comparing calculation
qsr≥qsj
qsr=38.9KPa ＞ qsj=36.5KPa
Top plate of underground parking garage bearing capacity meets engineering truck equivalent uniform load requirement, can travel equivalence thereon uniform
The load engineering truck less than or equal to 38.9KPa.
In formula: qsrTop plate of underground parking garage allowable load design load (KPa)；
qsjEngineering truck equivalent uniform load design load (KPa).
Four, top plate of underground parking garage Punching Shear checking computations
FR≥Fl=0.7 βhftηumh0=0.7 × 1 × 1.43 × 0.8 × 2240 × 160=287KN
Fl=γ F=1.3 × 70=91KN；FR=287KN ＞ Fl=91KN
Top plate of underground parking garage Punching Shear meets requirement.
In above formula:
um=2 [(b+2h0/2)+(a+2h0/ 2)]=2 [(600+2 × 160/2)+(200+2 × 160/2)]=2240mm
In formula: FRCutting-bearing capacity (KN)；
FlLocal Loads design load (KN)；
F vehicle rear wheel 3 gravity standard；
η local loads area shape affect coefficient；
βsLong limit when local loads area is rectangle and the ratio of short side dimension, βsIt is not preferably greater than 4, works as βsLittle
Taking 2 in 2 time, this engineering takes βs=600/200=3.
βhInfluential factor of sectional height, takes 1.0 when h≤800；
ftConcrete axial tensile strength design load, C30 concrete takes 1.43N/mm2；
umCalculate the girth in cross section, take local loads area h0The least favorable girth of plate vertical cross-section at/2；
h0Effective depth of section, the distance of top plate of underground parking garage upper surface to lower rebar center, i.e. 180-(15+5)
=160；
γ Local Loads partial safety factor takes 1.3；
F engineering truck trailing wheel 3 gravity standard, according to " highway bridge and culvert design general specification " (JTG D60-2004)
550KN level engineering truck rear axle gravity standard 140KN, i.e. engineering truck trailing wheel 3 gravity standard F=140/2=70KN.
A, b respectively engineering truck trailing wheel 3 lands length and width, according to " highway bridge and culvert design general specification "
(JTGD60-2004), 550KN level engineering truck takes 200 and 600 respectively.
This formula middle section refers to Bars In Poured Concrete Slab concrete thickness.
Five, meet require brushing engineering truck travel boundary line
In top plate of underground parking garage allowable load design load zoning, red flashing light paint brushing engineering truck is used to travel boundary
Line 4, in order to guarantee top plate of underground parking garage 6 structural safety.
Six, engineering truck travels on top plate of underground parking garage
According to engineering truck equivalent uniform load design load less than or equal to top plate of underground parking garage 5 allowable load design load
Principle, arranges the engineering truck of the corresponding load engineering truck on top plate of underground parking garage 5 to travel traveling in boundary line 4.
Claims (2)
1. top plate of underground parking garage design load contrasts a construction method with engineering truck load, it is characterized in that taking following step
Rapid:
One, top plate of underground parking garage allowable load design load calculates:
1) top plate of underground parking garage overburden load design load is calculated as follows:
q1sj=k1hγ
In formula: k1Dead load partial safety factor takes 1.2；
H top plate of underground parking garage design thickness of earth covering m；
γ earthing unit weight takes 18KN/m3；
2) top plate of underground parking garage allows that live load design load is calculated as follows:
q2sj=k2qb
In formula: k2Live load partial safety factor takes 1.3；
qbLive load standard value KPa is allowed in design；
3) top plate of underground parking garage allowable load design load calculates:
qsr=q1sj+q2sj
In formula: q1sjTop plate of underground parking garage overburden load design load KPa；
q2sjTop plate of underground parking garage allows live load design load；
Two, engineering truck equivalent uniform load design load calculates:
1) engineering truck total load head design load is calculated as follows:
P=k (p1+p2)
In formula: k engineering truck driving dynamics coefficient takes 1.3；
p1Engineering truck deadweight KN；
p2Engineering truck loading deadweight KN；
2) engineering truck equivalent uniform load active area is calculated as follows:
A=(a+tan45 ° × 2h) × (b+tan45 ° × 2h)
In formula: a engineering truck left and right wheels is away from m；
B engineering truck wheel base m；
H top plate of underground parking garage thickness m；
3) engineering truck equivalent uniform load design load is calculated as follows:
qsj=p/A
In formula: p engineering truck total load head design load KN；
A engineering truck equivalent uniform load active area；
Three, top plate of underground parking garage allowable load design load and engineering truck design load comparing calculation:
qsr≥qsj
In formula: qsrTop plate of underground parking garage allowable load design load KPa；
qsjEngineering truck equivalent uniform load design load KPa；
Four, engineering truck traveling maximum wheel load effect lower roof plate Punching Shear checking computations:
FR≥Fl=(0.7 βhft+0.25σpc.m)ηumh0
Fl=γ F
um=2 [(b+2h0/2)+(a+2h0/2)]
In formula: FRCutting-bearing capacity KN；
FlLocal Loads design load KN；
η local loads area shape affect coefficient；
βsLong limit when local loads area is rectangle and the ratio of short side dimension, βsIt is not more than 4, works as βsTake during less than 2
2；
βhInfluential factor of sectional height, takes 1.0 when Bars In Poured Concrete Slab thickness h no more than 800；When Bars In Poured Concrete Slab thickness h is not less than
0.9 is taken when 2000；Therebetween by linear interpolation value；
ftConcrete axial tensile strength design load N/mm2；
σpc.mCalculate the effective compressive pre-stress of both direction concrete on perimeter of section and take 1.0～3.5N/mm2；
umCalculate the girth mm in cross section, take distance local loads area h0The least favorable girth of plate vertical cross-section at/2 "；
h0Effective depth of section；
γ Local Loads partial safety factor takes 1.3；
F engineering truck trailing wheel gravity standard KN；
A, b respectively engineering truck trailing wheel lands length and width mm；
Five, meet require brushing engineering truck travel boundary line
In top plate of underground parking garage allowable load design load zoning, metallic finishe brushing engineering truck is used to travel boundary line, in order to
Guarantee the structural safety of top plate of underground parking garage；
Six, engineering truck travels on top plate of underground parking garage
The principle of top plate of underground parking garage allowable load design load it is less than or equal to according to engineering truck equivalent uniform load design load,
Travel in arranging engineering truck traveling boundary line on top plate of underground parking garage.
Top plate of underground parking garage design load the most according to claim 1 contrasts construction method with engineering truck load, and it is special
Levy and be: in step 5, metallic finishe uses red flashing light paint.
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| CN104831750B true CN104831750B (en) | 2017-01-11 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105625764B (en) * | 2015-12-31 | 2017-12-19 | 山东万鑫建设有限公司 | Shed deckhead bearing capacity calculation and construction method under engineering truck load action |
| CN113392458B (en) * | 2021-06-21 | 2023-12-12 | 中国建筑科学研究院有限公司 | Method for determining expected condition parameters of uniform distributed live load design of floor |
| CN113821853A (en) * | 2021-07-06 | 2021-12-21 | 五冶集团上海有限公司 | Method for calculating structural floor bearing capacity during floor operation of hoisting machine |
| CN115749346A (en) * | 2022-11-04 | 2023-03-07 | 中建八局第二建设有限公司 | Garage roof load dispersion construction method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000160551A (en) * | 1998-11-27 | 2000-06-13 | Takenaka Komuten Co Ltd | Ground improving method applying top-down construction method |
| CN203188665U (en) * | 2013-04-25 | 2013-09-11 | 广州市港航工程研究所 | Stereo garage arranged along lower portion of lane |
-
2015
- 2015-06-05 CN CN201510304383.6A patent/CN104831750B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000160551A (en) * | 1998-11-27 | 2000-06-13 | Takenaka Komuten Co Ltd | Ground improving method applying top-down construction method |
| CN203188665U (en) * | 2013-04-25 | 2013-09-11 | 广州市港航工程研究所 | Stereo garage arranged along lower portion of lane |
Non-Patent Citations (3)
| Title |
|---|
| 关于地下室顶板上消防车活荷载设计值的探讨;马宗玺等;《青岛理工大学学报》;20091231;第30卷(第3期);第145-149、154页 * |
| 地下室顶板消防车活荷载的设计取值探讨;董鹏聪等;《城市建设理论研究》;20121231;第35卷;第1-7页 * |
| 对地下室顶板上消防车活荷载合理取值的探讨;徐威等;《结构工程师》;20110831;第27卷(第4期);第12-16页 * |
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