腳手架搭設(shè)施工方案可編輯

1、施工組織設(shè)計(jì)/方案審查意見Review Comment on Construction Organization Desion/Method Statement承包單位Contractor:四川石油天然氣建設(shè)工程有限責(zé)任公司（SPC）監(jiān)理單位Supervision Company: 四川華成油氣工程建設(shè)監(jiān)理有限公司（SPCS）合同號Contract No.: CW 編號 No.:K-003工程項(xiàng)目名稱 Engineering Project Name：川東北高含硫氣田工程Chuandongbei High-Sulfur Gas Field Project方案描述 Description of

2、MS：鯤池倒班宿舍腳手架搭設(shè)施工方案Kunchi Living Quarter Scarffold Set-up Construction Statement編制依據(jù)Compilation Basis：國家相關(guān)建筑規(guī)范要求。National Construction Regulation編制總說明 Compilation Instruction：為鯤池倒班宿舍腳手架施工準(zhǔn)備。Preparation for Kunchi Living Quarter Scarffold Set-up Construction承包商報(bào)審意見Comment for Approval from Contractor：

3、承包單位 Contractor（章 seal）： 項(xiàng)目負(fù)責(zé)人Project Leader： 日 期 Date： 審查意見 Review Comment：項(xiàng)目監(jiān)理機(jī)構(gòu) CDB專業(yè)工程師 CDB HES現(xiàn)場經(jīng)理 CDB現(xiàn)場施工經(jīng)理Project Supervision Organization: CDB Disciplined Engineer: CDB HES Site Manager: CDB Site Construction Manager: 簽字Sign： 簽字Sign： 簽字Sign： 簽字Sign： 日期Date： 日期Date： 日期Date： 日期Date： K-003川東北高含

4、硫氣田工程Chuandongbei High-Sulfur Gas Field Project宣漢天然氣處理廠Xuanhan Natural Gas Treatment Plant鯤池倒班宿舍腳手架搭設(shè)施工方案Kunchi Living Quarter Scarffold Set-up Construction Statement川慶油建公司川東北高含硫氣田工程施工項(xiàng)目部SPC Chuandongbei High-sulfur Gas Field Project Construction Department版次Rev.編制COMPILED日期DATE2010-9-24U01審核REVIEWE

5、D日期DATE2010-9-24批準(zhǔn)APPROVED日期DATE2010-9-24Contents目 錄1編制依據(jù)及構(gòu)造要求11Plan basis and structural requirements11.1編制依據(jù)11.1 Plan basis11.2構(gòu)造要求11.2 Structural requirements12工程概況22 Construction Summary23氣象資料23 Meteorological meterials24原材料的規(guī)格及要求24 Specification and requirements of primary material24.1桿件規(guī)格及要求24

6、.1 Specification and requirements of member bars24.2扣件規(guī)格及要求24.2 Specification and requirements of fasterners24.3其他構(gòu)件規(guī)格及要求34.3 Specification and requirements of other parts35地基處理35 Foundation Treatment36搭設(shè)工藝流程36 Set-up technical process36.1架子搭設(shè)工藝流程：36.1 Scaffold set-up technical process36.2腳手架搭設(shè)的方法46

7、.2 Scarffold set-up methods46.3架體與建筑物的拉結(jié)(剛性拉結(jié))76.3 Drawknot between scarffold and building (rigid drawknot)76.4作業(yè)層欄桿和擋腳板的搭設(shè)86.4 Set-up of handrail and foot block86.5過門洞的處理96.5 Process of door opening96.6過窗洞的處理96.6 Process of window opening96.7安全網(wǎng)96.7 Safety net96.8安全擋板96.8 Safety apron96.9通道 access9

8、7防護(hù)架搭設(shè)的勞動力安排107 Labor force arrangement108架子的驗(yàn)收、使用及管理108 Acceptance, usage and management of scarffold108.1架子的驗(yàn)收、使用及管理108.1 Acceptance, usage and management of scarffold108.2人員素質(zhì)要求118.2 Requirements of staff quality118.3主要勞保用品要求128.3 Requirements of labor protection articles129腳手架搭設(shè)安全技術(shù)交底139 Safety

9、technology disclosure of scarffold set-up139.1架子搭設(shè)安全技術(shù)交底139.1 Safety technology disclosure of scarffold set-up139.2架子拆除安全技術(shù)交底149.2 Safety technology disclosure of scarffold dismantling1410腳手架的驗(yàn)算1510.1參數(shù)信息:1510.1 parameter information1510.2大橫桿的計(jì)算:1710.2Calculation of big rail:1710.3小橫桿的計(jì)算:1810.3Small

10、 rail calculation:1810.4扣件抗滑力的計(jì)算:2010.4Fastener skid resistance calculation:2010.5腳手架荷載標(biāo)準(zhǔn)值:2010.5Standard value of scaffold load:2010.6立桿的穩(wěn)定性計(jì)算:2210.6The calculation of the upright stanchion stability:2210.7最大搭設(shè)高度的計(jì)算:2310.7The calculation of the maximum setup height:2310.8連墻件的計(jì)算:2410.8The calculatio

11、n of the wall pieces:2410.9立桿的地基承載力計(jì)算:2510.9The calculation of the ground bearing capacity of the upright stanchion:251 編制依據(jù)及構(gòu)造要求1 Plan basis and structural requirements1.1 編制依據(jù)1.1 Plan basis1.1.1 鯤池倒班宿舍施工圖；Kunchi living quarter construction drawing;1.1.2 建筑施工扣件式鋼管腳手架安全技術(shù)規(guī)范（JGJ130-2001）；“Safety tech

12、nology regulation of fastener steel pipe scaffold” （JGJ130-2001）；1.1.3 中國建筑出版社建筑施工腳手架實(shí)用手冊；China construction press “Construction scaffold application manual”;1.1.4 碳素結(jié)構(gòu)鋼(GB700-89)；“Carbon construction steel” (GB700-89)；1.1.5 木結(jié)構(gòu)設(shè)計(jì)規(guī)定(GBJ588)；“Code for design of timber structures” (GBJ588)；1.1.6 建筑結(jié)構(gòu)荷

13、載規(guī)范GB500092001；“Code for construction structural load” GB500092001；1.1.7 建筑施工安全檢查標(biāo)準(zhǔn)JGJ59-99?！癈onstruction safety check standard” JGJ59-99。1.2 構(gòu)造要求1.2 Structural requirements1.2.1 施工中不允許超過設(shè)計(jì)荷載值；No exceeded design load is allowed during construction;1.2.2 小橫桿、大橫桿和立桿是傳遞垂直荷載的主要構(gòu)件。而剪力撐、斜撐和連墻件主要保證腳手架整體剛度和

14、穩(wěn)定性的,并且加強(qiáng)抵抗垂直和水平作用的能力。而連墻件則承受全部的風(fēng)荷載?？奂t是架子組成整體的聯(lián)結(jié)件和傳力件。Small rail, big rail and upright rod are the main parts of the vertical transfer load. The bridging, inclined supporter and wall pieces are the main parts to ensure the rigidity and stability of the scaffold, as well as strengthen the resistance

15、 the vertical and horizontal power. The wall pieces undertake the entire wind load. The fasteners are the connecting pieces and transmission pieces of the scaffold.1.2.3 搭設(shè)要求：雙排落地式鋼管腳手架；Set-up requirements: Double floor steel scaffold;1.2.4 本方案對腳手架搭設(shè)以最大搭設(shè)高度30m，腳手板搭設(shè)層數(shù)為6層、同一立面上同時進(jìn)行作業(yè)層數(shù)為2層進(jìn)行驗(yàn)算。This pl

16、an proceeds with checking computation work of 6 layers of scaffold baffle erection with the maximum set-up height 30m and 2 layers will perform operation at same vertical surface simultaneously.1.2.5 采用483.5mm雙排鋼管腳手架搭設(shè)，立桿橫距b=1.05m，主桿縱距l(xiāng)=1.5m，內(nèi)立桿距墻0.3m。腳手架步距h=1.8m，腳手板從地面2.0m開始每1.8m設(shè)一道（在該層施工時滿鋪），腳手架與建

17、筑物主體結(jié)構(gòu)連接點(diǎn)的位置，其豎向間距H1=2h=21.8=3.6m，水平間距L1=3L=31.5=4.5m。根據(jù)規(guī)定，均布荷載Qk=3.0KN/。Set-up the 483.5mm Double floor steel scaffold, the horizontal space of upright rod is b=1.05m，the longitudinal space of the main rod is l=1.5m，internal upright rod is 0.3m away from the wall. The scaffold space is h=1.8m，set t

18、he scaffold in every 1.8m from 2.0m above the floor( fully paved when construct this layer). The joint position of the scaffold and building main structure, the vertical space is H1=2h=21.8=3.6m，the horizontal space is L1=3L=31.5=4.5m. On the basis of the requirements, the average load is Qk=3.0KN/.

19、2 工程概況2 Construction Summary本工程擬建設(shè)鯤池倒班宿舍項(xiàng)目，結(jié)構(gòu)為框架結(jié)構(gòu)，總建筑面積5964m2（地上7層地下1層，其中地下建筑面積為689 m2），二類高層建筑，抗震設(shè)防烈度為6度，設(shè)計(jì)使用年限50年。建設(shè)地點(diǎn)位于達(dá)州市宣漢縣昆池鄉(xiāng)境內(nèi)，交通條件便利， 建設(shè)場地位于川東北氣礦宣漢作業(yè)區(qū)內(nèi)。This project plan to build the Kunchi living quarter, which is frame structure with a total construction area of 5964 (7 floors above the gr

20、ound and 1 floor under the ground, the underground area is 689 m2），Grade II high-rise building, the seismic fortification intensity is 6, the design tenure of employ is 50 years. The construction site is located in Kunchi, Xuanhan, Dazhou, which has convenient transportation, the jobsite is located

21、in the CDB Gas field Xuanhan operation zone.3 氣象資料3 Meteorological meterials建設(shè)施工區(qū)域?qū)儆趤啛釒駶櫦撅L(fēng)氣候區(qū)，氣溫受海拔高度影響大，全年四季分明，雨量充沛，氣候溫和，雨水集中在夏季，冬暖雪少。與工程相關(guān)的災(zāi)害性氣候因素為大風(fēng)，暴雨及冰雹等。多年年平均降水量1213.5mm。多年年平均氣溫16.8，極端最高氣溫為41.3，極端最低氣溫-5.3，最大風(fēng)速32 m/s。The construction site is located in the subtropical humid monsoon climate zon

22、e; the temperature is highly affected by the altitude. There are four distinct seasons with plentiful rain and moderate climate. The rain concentrates in summer, warm in winter with less snow. The related disastrous climatic factors are strong wind, rainstorms, hails, etc. The average precipitation

23、is 1213.5mm. The average temperature is 16.8，the hottest temperature is 41.3，the lowest temperature is -5.3，the highest wind speed is 32 m/s。4 原材料的規(guī)格及要求4 Specification and requirements of primary material 4.1 桿件規(guī)格及要求4.1 Specification and requirements of member bars4.1.1 鋼管宜采用力學(xué)性能適中的Q235A(3號)鋼，其力學(xué)性能應(yīng)

24、符合國家現(xiàn)行標(biāo)準(zhǔn)碳素結(jié)構(gòu)鋼(GB/T700-2006)中Q235A鋼的規(guī)定。每批鋼材進(jìn)場時，應(yīng)有材質(zhì)檢驗(yàn)合格證。This project requires moderate mechanical properties steel Q235A(No.3), the mechanical properties should satisfy the national standard in “Carbon construction steel” (GB700-89). All steel should have inspection certificates when approach the jo

25、bsite.4.1.2 鋼管選用外徑48mm，壁厚3.5mm的焊接鋼管,表面平整光滑，無銹蝕、裂紋、分層、壓液，新用的鋼管要有出廠合格證，鋼管、機(jī)件到場后需取樣送檢，合格后方能使用。搭設(shè)架子前應(yīng)進(jìn)行保養(yǎng)，除銹并統(tǒng)一涂色，顏色力求環(huán)境美觀。立桿、大橫桿和斜桿的最大長度為6.5m，小橫桿長度1.5m。Select the welding steel whose external diameter is 48mm, wall thickness is 3.5mm, smooth surface with no rust, crack, separation, fluid. The new steel

26、 should have manufactured certificate; Steel and component should be sent to be sampled before put into use. Before erect the scaffold, it should be cleaned the rust and painted uniformly. The maximum length of the upright rod, big rail and inclined rod is 6.5m; the small rail length is 1.5m.4.2 扣件規(guī)

27、格及要求4.2 Specification and requirements of fasterners4.2.1 根據(jù)可鑄鐵分類及技術(shù)條件(GB978-67)的規(guī)定，扣件采用機(jī)械性能不低于KTH330-08的可鍛鑄鐵制造。鑄件不得有裂紋、氣孔，不宜有縮松、砂眼、澆冒口殘余披縫，毛刺、氧化皮等清除干凈。On the basis of “clarification and technical condition of cast iron” (GB978-67), the fastener should be the cast -iron whose mechanical property is

28、no less than KTH330-08. The cast iron should have no crack, bubble, shrink, sand hole and remained joint flashes in the spruing. Clean out the burs, rust, etc.4.2.2 扣件與鋼管的貼合面必須嚴(yán)格整形，應(yīng)保證與鋼管扣緊時接觸良好，當(dāng)扣件夾緊鋼管時，開口處的最小距離應(yīng)不小于5mm。Strictly shape the fastener and the steels abutted surface, ensure the good cont

29、act with the steel faster. When the fasteners clamp the steel, the minimum space of the opening should be no less than 5mm.4.2.3 扣件活動部位應(yīng)能靈活轉(zhuǎn)動，旋轉(zhuǎn)扣件的兩旋轉(zhuǎn)面間隙應(yīng)小于1mm。The movable components should turn flexiblely, the two rotating face space of the rotate fastener should be less than 1mm.4.2.4 扣件表面應(yīng)進(jìn)行防銹處理，

30、涂好防銹漆，螺母、螺絲等也應(yīng)及時上油。Take anti-corrosive treatment on the fasteners surface, paint the rust proof paint, timely paint the oil to the screw nuts and screws.4.3 其他構(gòu)件規(guī)格及要求4.3 Specification and requirements of other parts4.3.1 腳手板應(yīng)采用杉木制作，厚度不小于50mm，寬度大于等于200mm，長度為4-6m，其材質(zhì)應(yīng)符合國家現(xiàn)行標(biāo)準(zhǔn)木結(jié)構(gòu)設(shè)計(jì)規(guī)定(GBJ588)中對II級木材的規(guī)定，

31、不得有開裂、腐朽。腳手板的兩端應(yīng)采用直徑為4mm的鍍鋅鋼絲各設(shè)兩道箍。The scaffold should be made by the Chinese fir, the thickness should be no less than 50mm, the width should be no less than 200mm, the length should is 4-6m, the quality should satisfy the requirements of Grade II wood in the national standard “Code for design of t

32、imber structures” (GBJ588), with no crack and rust. The both ends of the scaffold should set two hoops with galvanized wire whose diameter is 4mm.4.3.2 鋼管及扣件報(bào)廢標(biāo)準(zhǔn)：鋼管彎曲、壓扁、有裂紋或嚴(yán)重銹蝕；扣件有脆裂、變形、滑扣應(yīng)報(bào)廢和禁止使用。The scrapping standard of steel pipes and fasteners: the steel is bend, squash, crack or heavily rust

33、; the fastener is deform, crack and thread slipping.5 地基處理5 Foundation Treatment1）地基表面整平，素土夯實(shí)，并做成內(nèi)高外低形式，有利排水，且腳手架底座底面標(biāo)高高出自然地坪50mm；Level the foundation surface, compact the pure soil and make it high-inside and low-outside to better drain. The bottom elevation of the scaffold should be 50mm higher th

34、an the ground;2）立桿支承在1.2m0.2m0.05m的木墊上,根據(jù)后面計(jì)算書中的立桿基礎(chǔ)底面的平均壓力，N = 9.733 kN, 木墊標(biāo)準(zhǔn)抗壓強(qiáng)度為50MPa,木墊上的壓強(qiáng)為P=09.733/（1.2*0.2）=40.55MPa，因此滿足強(qiáng)度要求；Set the upright rod on the 1.2m0.2m0.05m wood cushion; According to the calculation book, the average pressure of the upright rod foundation basis, N = 9.733 kN, the s

35、tandard anti-pressure ability of the wood cushion is 50MPa, the pressure of the wood cushion is P=09.733/（1.2*0.2）=40.55MPa，therefore it satisfies the strength requirement.3）場地平整不得積水。No ponded water on the surface.6 搭設(shè)工藝流程6 Set-up technical process6.1 架子搭設(shè)工藝流程：6.1 Scaffold set-up technical process在牢

36、固的地基彈線、立桿定位擺放掃地桿豎立桿并與掃地桿扣緊裝掃地小橫桿，并與立桿和掃地桿扣緊裝第一步大橫桿并與各立桿扣緊安第一步小橫桿安第二步大橫桿安第二步小橫桿加設(shè)臨時斜撐桿，上端與第二步大橫桿扣緊(裝設(shè)與柱連接桿后拆除) 安第三、四步大橫桿和小橫桿安裝二層與柱拉桿接立桿加設(shè)剪力撐鋪設(shè)腳手板，綁扎防護(hù)及檔腳板、立掛安全網(wǎng)。Snap the line on firm foundation, set the rod for positioningplace the sweep shotset small rail, buckle the upright rod and sweep shotset th

37、e first big rail and buckle with the upright rodsset the first small railset the second big railset the second small railset the temporary inclined supporting rod, buckle the upper end with the second big rail (dismantle the furnish and column joint rods)set the third and fourth big and small rodset

38、 the second floor and column tension rodjoint the upright rodadd the bridgingset the scaffold, bind the handrail and foot block, vertically hang the safety net.架子搭設(shè)好后經(jīng)相關(guān)人員驗(yàn)收后掛牌確認(rèn)方能使用，且以后再使用中要定期檢查。其扣件式鋼管腳手架各桿件如圖6.1所示After the scaffold is erected and accepted by related workers, it can be put into use

39、. Each rods of the steel tubular scaffold see table 6.11external upright rod外立桿；2internal upright rod內(nèi)立桿；3lateral horizontal rod橫向水平桿；4longitudinal horizontal rod縱向水平桿；5handrail欄桿；6foot block擋腳板；7right-angle fastener直角扣件；8rotate fastener旋轉(zhuǎn)扣件；9wall pieces連墻件；10lateral inclined supporter橫向斜撐；11main up

40、right rod主立桿；12assistant upright rod副立桿；13bracing拋撐；14bridging剪刀撐；15cushion墊板；16longitudinal sweep shot縱向掃地桿；17lateral sweep shot橫向掃地桿；圖6.1 扣件式鋼管腳手架各桿件位置Table 6.1 The location of each rods on the steel tubular scaffold6.2 腳手架搭設(shè)的方法6.2 Scarffold set-up methods6.2.1 腳手架搭設(shè)相關(guān)尺寸The relative size of scarff

41、old set-up腳手架的施工采用48系列扣件式鋼管雙排落地架子，架子寬1.05 米，立桿間距1.50 米，步距為1.80 米，架子搭設(shè)、剪力撐、斜撐等設(shè)置按規(guī)定施工。The construction of scaffold choose the Series 48 steel tubular double floor shelf, the width of the shelf is 1.05m, the space between the upright rods is 1.50m, the pace is 1.80m. Construct the shelf set-up, bridgi

42、ng, inclined supporter, etc with the requirements.6.2.2 立桿的搭設(shè)Set-up the upright rod1）每根立桿底部應(yīng)設(shè)置墊板；Set cushion on the bottom of every upright rod;2）立桿底部必須設(shè)置縱、橫向掃地桿?？v向掃地桿應(yīng)采用直角扣件固定在距底座上皮不大于200mm 處的立桿上。橫向掃地桿也應(yīng)采用直角扣件固定在緊靠縱向掃地桿下方的立桿上。當(dāng)立桿基礎(chǔ)不在同一高度上時，必須將高處的縱向掃地桿向低處延長兩跨與立桿固定，高低差不應(yīng)大于1m?？窟吰律戏降牧U軸線到邊坡的距離不應(yīng)小于500mm

43、；Set longitudinal and lateral sweep shot on the bottom of the upright rod. Fix the longitudinal sweep shot with the right-angle fastener on the upright rod which is 200mm less from the bottom. Fix the lateral sweep shot with the right-angle fastener on the upright rod which is close to the downside

44、of the longitudinal sweep shot. When the upright rods are not on the same height, extend the longitudinal sweep shot from the high place to low place for 2 paces, and fix with the upright rod, the distance in levels should be no greater than 1m. The distance between the upright rod axis on the slope

45、 and the slope should be no less than 500mm;3）立桿必須按規(guī)范用連墻件與建筑物可靠連接；Connect the upright rod and the building with the wall pieces as required;4）立桿接長除頂層頂步可采用搭接外，其余各層各步接頭必須采用對接扣件連接，對接、搭接應(yīng)符合相關(guān)要求。Only employ the lap joints on the top, on the other layers employ the butt joints. The butting and lapping sho

46、uld satisfy the requirements.。6.2.3 縱向水平桿、橫向水平桿的搭設(shè)Set-up the longitudinal and lateral horizontal rod1）縱向水平桿宜設(shè)置在立桿內(nèi)側(cè)，其長度不宜小于3 跨，每步為4 根縱向水平桿；The longitudinal horizontal rod on the inner side of the upright rod, the length should be no less than 3 paces, every pace has 4 longitudinal horizontal rods;2）

47、縱向水平桿宜采用對接扣件連接，也可采用搭接，對接、搭接應(yīng)符合相關(guān)規(guī)定（如圖6.2）；Employ the butt joints to connect the longitudinal horizontal rod, as well as the lap joints. The butting and lapping should satisfy the requirements. (see table 6.2)；（a）the joints should not in the same pace(elevation)接頭不在同步內(nèi)（立面）；（b）the joints should not in

48、 the same pace(plan) 接頭不在同跨內(nèi)（平面）1upright rod立桿；2longitudinal horizontal rod縱向水平桿；3lateral horizontal rod橫向水平桿圖6. 2 縱向水平桿對接接頭布置6.2.3.1.1 Table 6.2 the layout of butt joints of the longitudinal horizontal rod3）主節(jié)點(diǎn)處必須設(shè)置一根橫向水平桿，用直角扣件扣接且嚴(yán)禁拆除。主節(jié)點(diǎn)處兩個直角扣件的中心距不應(yīng)大于150mm；Set 1 lateral horizontal rod on the hos

49、t node, buckled with right-angle fastener and forbid to dismantle. The distance between the two right-angle fasteners on the host nodes should be no greater than 150mm;4）橫向水平桿兩端均應(yīng)采用直角扣件固定在縱向水平桿上。Fix both ends of the lateral horizontal rod on the longitudinal horizontal rod with right-angle fastener.

50、6.2.4 腳手板、踢腳板的鋪設(shè)Set-up of the scaffold board and foot block1）腳手板應(yīng)在施工層滿鋪，并綁扎牢實(shí)；The scaffold board should be completely laid and firmly bound;2）采用對接或搭接時均應(yīng)符合規(guī)范的規(guī)定，腳手板探頭應(yīng)用直徑3.2mm 的鍍鋅鋼絲固定在支撐架上；The butting and lapping should satisfy the requirements. Fix the jut of the scaffold board with galvanized wire

51、whose diameter is 3.2 mm on the supporting shelf;3）在拐角、斜道平臺口處的腳手板，應(yīng)與橫向水平桿可靠連接，防止滑動。Connect the scaffold which is at corner, exit ramp platform with the lateral horizontal rod, to prevent slippery.6.2.5 扣件的安裝Set-up of fastener1）所用扣件的規(guī)格必須與鋼管的外徑（48）相同；All specification of the fastener should be the sam

52、e with the external diameter of steel（48）;2）螺栓擰緊扭矩力不應(yīng)小于40Nm，且不應(yīng)大于65 Nm； The tightening torque of the bolt should be less than 40Nm，and should be no greater than 65 Nm；3）在主節(jié)點(diǎn)處固定橫向水平桿、縱向水平桿、剪刀撐、橫向斜撐等用的直角扣件、旋轉(zhuǎn)扣件的中心點(diǎn)的相互距離不應(yīng)大于150mm；Fix the lateral horizontal rod, longitudinal horizontal rod, bridging, la

53、teral inclined supporter in the host node with the right-angle fastener and rotate fastener. The distance between the two right-angle fasteners on the host nodes should be no greater than 150mm;4）對接扣件開口應(yīng)向上或朝內(nèi)； The opening of the butt fastener should face upwards or inside;5）各桿件端頭伸出扣件蓋板邊緣的長度不應(yīng)小于100 m

54、m。The jut of each rod which stretches out the edge of the board should be no less than 100mm.6.2.6 剪刀撐與橫向斜撐的搭設(shè)Set-up of the bridging and horizontal inclined supporter1）剪刀撐：Bridging:A雙排腳手架在搭設(shè)時應(yīng)設(shè)置剪刀撐，剪刀撐的設(shè)置應(yīng)符合規(guī)范規(guī)定。Set the bridging when install the double-row scaffold, the bridging should satisfy the r

55、equirements.B剪刀撐的搭設(shè)是將一根斜桿扣在立桿上，另一根斜桿扣在小橫桿的伸出部分上，這樣可以避免兩根斜桿相交時把鋼管別彎。斜桿兩端扣件與立桿節(jié)點(diǎn)（即立桿與橫桿的交點(diǎn)）的距離不大于20cm，最下面的斜桿與立桿的連接點(diǎn)離地面不宜大于50cm，以保證架子的穩(wěn)定性。Buckle the inclined rod on the upright rod, and another inclined rod on the jut of the small rail, to prevent pipes bend. The distance between both ends of the incli

56、ned rod and upright rod node (the node between the upright rod and rail) should be no greater than 20cm, the distance of the nodes, which is between the lowest inclined rod and upright rod should be no greater than 50cm above the ground, to ensure the scaffolds stability.C每道剪刀撐跨越立桿的根數(shù)宜符合規(guī)范規(guī)定。The amount of bridging between the upright rods should satisfy the requirements.D剪刀撐斜桿的接長宜采用搭接，搭接應(yīng)符合規(guī)范規(guī)定。The inclined rod of the bridgin