板式楼梯配筋计算表图文文档格式.docx
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板式楼梯配筋计算表图文文档格式.docx
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2.本计算表用于一般民用建筑板式楼梯踏步板的设计.设计适用范围:
1.)水平计算跨度:
1800?
6900?
.
2.)活荷载标准值:
2..0KN/?
2.5KN/?
3.5KN/?
3.)混凝土强度等级:
C20,C25,C30.
4.)钢筋为HPB235级,当采用其他级别时,不得用本表查得的钢筋面积进行强度代换,应另行计算。
3.本计算表选用时应根据踏步尺寸,水平计算跨度,活荷载标准值,混凝土强度等级,弯距系数(可按表11要求确定)直接查得踏步板厚度及跨中受力钢筋面积,踏步板支座负弯距钢筋面积应按表11要求确定
4.计算简图为两端支承的斜板,荷载形式为满跨布置的均步荷载.面层荷载为0.65KN/?
板底抹灰为0.34KN/?
未考虑栏杆或栏板荷载.
二应用实例
某办公楼板式楼梯踏步板,水平计算跨度为3300,踏步高150,宽300,水磨石面层,板底抹麻刀灰,踏步板两端支座分别与平缓台板连接,采用钢栏杆.
选用C20混凝土,HPB235钢筋,活荷载标准值2.5KN/?
查表11:
弯距系数为1/10
查表4:
h=120mm,As=746m?
/m
查表10:
Gk=6.58KN/?
фmax=12?
C=20?
查表12:
配筋选用φ12@150,As=754>
746.
2
板厚
表活荷载标准值2.0KN/m?
混凝土强度等级C20
钢筋面积表1弯矩踏步高计算跨度(水平)
系数踏步宽180021002400270030003300360039004200450048005100540057006000630066006900
140808090100110120130140150160170180190200210220230240
26937542849355461869476885193910621164127313891543167418121993320
150808090100110120130140150160170180190200210220230240
2784144555355946627658479361033116712791398152416941836198721873001608080901001101201401501601701801902002102202302402501/1028846951360266874268776384393510291147127214351577172719202089280
1708090100110120130140150160170180190200210220230240250
298356424489557637713792899104211671300144216261788195921802373260
1808090100110120130140150160170180200210220230240250260
3103714415095816968039191043121013551230141115761750197221712381240
1408090100110130140150160170180200210220230240250260280
3594525877035967058429921188136712631481168519052182243727102742320
1508090110120130140150160180190200210220230250260270280
30040350545052664278093110961025120013891630185520972047230327143019
16080901101201301401601701801902002202302402502602802901/84605744655577228767799661146134115531511173720192287257426352948280
17080100110120130150160170180200210220230240260270280290
53440449963982772388911021306123514821720197823042238267230093372260
18090100110120140150160180190200210230240250260280290300
338440586749671844103710011209143817291679198822892616271130723733240
3
混凝土强度等级C25
钢筋面积表2弯矩踏步高计算跨度(水平)
2423353884515115746477177908669601043112912191336143315561779320
25034540046552759266773981489398910751164125614421570170519513001608080901001101201301401501601701801902002102202302401/1025835741448154561269076484292310301139125613791607174918992175280
170808090100110120130140150160170180190200220230240250
26837042949956563571679489299811711295142615661524167619402114260
180808090100110120130140150170180190200210220230240250
278385446527606694819924103896410761210135316031770194722592463240
1408090100110120130140150160180190200210220240250260270
3063704455185947138429811133107412381414171219231924215323982800320
1508090100110120130140160170180190200220230240250260280
3003163824595346367929338351018118513651559156317752119237226412672
16080901001101201401501601701802002102202302502602702801/83263954755887176797699161142132812381529174819852016227426852993280
1708090100110130140150160180190200210230240250260280290
33841054367661671887510471019120714121745166820252300259626562979260
1808090110120130140150170180190210220230250260270280290
35247146554767684110249911191141014411684194920102302276031173502240
4
混凝土强度等级C30
钢筋面积表3弯矩踏步高计算跨度(水平)
2413323854475065696417107828579501032111712051320141515131641320
24834239746152258666073180688397810631150124113601457155817633001608080901001101201301401501601701801902002102202302401/1025735441047653960668375683391310111098118912821445157617151967280
170808090100110120130140150160170180190200210220230240
26636642549355962870878486394710491156127814071645179419522241260
180808090100110120130140150160170180190200220230240250
276381442513582654737817919103212171349149016401590175420382226240
140808090110120130140150160170190200210220230240250260
303464544513588675758859998121411021254152517191927227825222782320
1508080100110120130140150160180190200210220230250260270
3003135244555296066958159551107104212081386168518992127212723742780
16080901001101201301401601701801902002202302402502602801/83233914705466277769208541002117213571556155517732126238626642691280
1708090100110120140150160170180200210220230250260270280
3354064875797136987899151150134412461549178020282056232727603084260
1808090100110130140150160180190200220230240250260280290
34842254668663572789110751041124214611490173321172414273527953145240
5
表活荷载标准值2.5KN/m?
钢筋面积表4弯矩踏步高计算跨度(水平)
292433474553612678780860948104211741282139815201685182319692162320
150808090100110120140150160170180190200210220230240250
3004815246116747467087868679591047113912501405154116841868202830016080901001101201301401501601701801902002102202302402501/10310369438504574654731811895101111281253138615591709186820732251280
1708090100110120130140150160170180190200210220230250260
321382454522594678768874989114312751416156717641934211520102200260
1808090100110120130140150170180190200210220230240250260
3333974715446407748881012920104011811333152616991884211923282550240
1408090110120130140150160180190200210220230250260270280
42552746854765879594411071031120313891624184320782023227126692963320
15080100110120130140160170180190200210230240250260270290
3004744054825647268767919591132132015241783169419642218249029332837
160901001101201301501601701801902102202302402502602802901/833741849863281372086610681261147214211644188621882473278028343166280
17090100110120140150160170190200210220240250260270280300
34943356772165080498312141137134816121867184321152409287432333396260
18090100110130140150160180190200220230240250270280290310
362503663582747935114410971320156515491813214324632549290332863485240
6
钢筋面积表5弯矩踏步高计算跨度(水平)
26236241948554961569276584292110201106119612891439156316941933320
269373431500565633712787866948104911381238135615751710185221153001608080901001101201301401501601701801902002102202302501/1027838444551558365373581389497811361252137515061751190120592011280
170808090100110120130140150160180190200210220230240250
287398460533603676786883988110110691164127115001652181220942277260
180808090100110130140150160170180190200210220230250260
298424492598683657738822910104311761318146917371914210020742274240
1408090100110120130150160170180190200220230240250260280
3314004795566558117698611029119313701559155817642100234426052628320
1508090100110120140150160170180200210220230240260270280
3003414114935987257007919131133131212201500171019362308220525962886
16080901001101301401501601801902002102202402502602702801/83514245446726327228561020989116713591673190819292185245929013228280
1708090100120130140150170180190200220230240250270280290
3634626245606558059759401124132515441571181121952488253828563198260
1808090110120130140160170180200210220230250260270290300
40854249458175993984810931308124415691828211021672478296829023517240
7
钢筋面积表6弯矩踏步高计算跨度(水平)
系数踏步宽180
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