1312-STR-1200梁、柱模板及支架施工方案(英文版).doc

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Construction methods and technical measures31. ScopeThe method statement herein is compiled by mainly focusing on installation of column and beam formworks of 1312-STR-1200 and their supporting frames.2. Materials1) Plywood (=15mm) shall be adopted to precast formworks of beam and column. The wooden board(50100mm) and the steel tube(48.34.0) shall be used to respectively support the inner kneel and outer kneel of formworks2) The steel tube (48.34.0) shall be used to make support of beam and column formworks and to erect scaffoldings.3) The upright monkey ladder shall be made of aluminum alloy and the planks will be made of steel.3. Construction methods and technical measures3.1. To ensure the stability of supporting frames, the concrete pouring of column and beam shall be done separately by three times .The first time of pouring for column shall reach the elevation of 109000mm and the second time of pouring for column shall reach the elevation of 116850.Pouring the for the part of the column above elevation of 116850mm shall be done together with concrete pouring for the beam. The supporting frame of beam formwork shall be connected rigidly to the poured column prior to starting concrete pouring on the beam. 3.2. Method of reinforcement for column formwork.C1/C1a（sectional dimension 850750mm）、C2（sectional dimension 750750mm）5 ways of keels inside each side face of column formwork and double steel tubes with a spacing of 500mm for column hoop. Tie bolts12 with spacing of 500mm installed inside side face. The upper, middle and lower column hoops of column formwork shall be connected to support outside to avoid tilting or inclinedness.3.3. Methods of reinforcement and supporting for beam formwork. See table 3.1.2.Table-3.1.2Code1GX1/5/6/7/8/9、1B31GX21GX31GX4/1GY31GY1/4/5、1B41GY21B11B2Sectional Dimensions4007007001100700135050010004006006501000600900750900Formwork of bottom of beamInner keel of formwork（line）35543444Spacing between outer keels of formwork(m)0.450.60.60.60.450.50.50.5Support on the bottom of beamSpacing of posts Two sides of formwork(m)0.91.21.21.21.01.21.21.2Span of beams (m)0.90.60.60.60.90.50.50.5Bay of posts(m)1.51.51.51.51.51.51.51.5Bearing post additionally fitted on the bottom of beam（line）02210111Side formwork of beamInner keel of formwork （line）45754555Outer keel of formwork(line)Spacing（m）0.90.60.60.60.450.50.50.5Tie BoltDiameter12161612/121212H（m）0.30.50.60.5/0.40.40.4l（m）0.90.60.60.6/0.50.50.5Note: “H” indicates the distance from tie bolt to the bottom of beam. “I” indicates the spacing on the direction of beam spans. The upper parts and lower parts of beam formwork shall be connected to the support tightly by steel tube couplers.3.4. Procedure and requirements for erection of supporting frame. 1)Procedure of erection： Place base plate(board) with a thickness of 50mm Erect base lift Connect the post and base lift by couplers Install the first runner and bearer and connect them to the post tightly with couplers Repeated the last step Erect cross bracings Lay steel planks.2). Lay the base plate (base support) and place the base lift as per the priorities of beam locations. The longitudinal base lift shall be fixed to the post with right angle couplers and the post shall be not more than 200mm to the bottom of steel tube. However, the transverse base lift shall be fixed to the post with right angle couplers and the post shall be close to the underneath of longitudinal base lift.3) The posts shall be erected as per the sequence of positioning. The posts shall be connected and fixed to the longitudinal and transverse base lifts. For erection of posts, the joints on each lift height shall be pair joint couplers (except for the top height lift) and ensure that the pair joints on the same section shall keep some space (50% of the sectional size)4).The bearer shall be set on the inner side of the post and the length of single post shall be not less than 3 bays. The bearer shall be connected by pair joint couplers and conform to the following rules: the ends for connection of two adjacent bearers shall not be set in the same bay or same lift height. Any two adjacent connection joints not in the same bay or lift height shall keep a distance of not less than 500mm on the horizontal direction. The distance from each joint centre to the nearest main joint shall be not more than 1/3 of the longitudinal spacing.5).The connection between runner and bearer on the bottom of beam formwork shall be connected to the post by double couplers.6).Add one bearer in the middle of two bearers on the top lift of supporting frame. The top of the bearer shall be tightly to the surrounding framed supports.7) The erection of cross bracing: the cross bracings shall be erected along with the scaffolding structure. The bracings on the bottom lift shall be all supported by the base plate. The method of lap joint shall be adopted for bracings connection. The length of lap joint shall not be less than 1m and fixed by 3 rotating couplers. The distance from the edge couplers cover on the top to the top of the post shall be not less than 100mm.The bracings shall be fixed to the extended part of runner or the post by rotating couplers. The central line of rotary coupler shall keep a distance of not more than 150mm to the main joint.8). Rigid connection shall be done in every 3 meters vertically between the formwork support, scaffolding and the column of the frame around which the construction work has been completed.9). Cross bracings shall be erected respectively on the ends of outer sides , corners and the central vertical face with a distance of less than 15m of the scaffoldings .The sequence of cross bracing erection shall be from the bottom to the top. The width of cross bracing is 6m, which makes an angle of 4560with the ground.10) .The wall fasteners of the scaffoldings shall be laid out horizontally close to the main joint as per the rule of “two lift heights and three bays”. The distance between fasteners and main joints shall be not more than 300mmm.11) .Planks shall be fully laid on the working platform with sound firmness and tied with steel wire #14 on three runners. Both ends of the scaffolding planks shall be reliable and fixed so as to prevent capsizing.12) .Guardrails: Erect two-line guardrails above the working platform and the upper line of guardrails (top rail) shall be 1.2m tall while the mid rail shall be set in the middle line of the lift height. Toe boards shall be erected with a height of 180mm to the platform. 1) Access for going up and down：Place 1 set of upright monkey ladder respectively on the southwest corner and northeast corner of scaffoldings. A rest platform shall be erected at the height of 4.5m of the upright monkey ladder.3.5. Dismantling of supporting frame.1).The technician shall conduct a technical disclosure for all the working crew members who are going to perform dismantling work prior to commencement of dismantling work and all the attendees are required to sign on the written form of this said technical disclosure.2). Arrange the power cables properly before dismantling the supporting frame. For the cables that cannot be dismantled or put aside, they shall be buried by soil. 3). Barricade the area with rope or warning tape prior to starting dismantling work. The work can be started only in the presence of watchman, HSE personnel and foreman.4) During dismantling the scaffoldings, the workers must wear harness and be equipped with tool bag. The workers shall not hold the steel tube and wrenches simultaneously .The tools shall be kept in the tool bag after use.5).The procedure for dismantling scaffoldings: From the top to the bottom, opposite to the sequence of erection. The general sequence for dismantling: guardrailsscaffolding planks cross bracingsrunnerbearer post posts passed onto the groundcouplers removing dismantled parts stacking and storing as per the specifications. 6) Someone shall be appointed for monitoring the dismantling work for structural form of scaffoldings .The crew members shall acknowledged with their respective given duties and work under united instruction .The working platform shall be with enough space7) It is not allowed to dismantle a vertical platform from 2 different points or from 2 different lift heights at the same time .Do not move to the next one until the last one has been completely dismantled. If the dismantling is being done at 2 different positions of the scaffolding system, the height different shall be within 2 lift heights so that the stability of the structural form will not be destroyed.8) The wall fasteners shall be dismantled along with the scaffoldings lift by lift. It is not allowed to dismantle the wall fasteners of the whole lift before dismantling the scaffoldings. When the dismantling of scaffoldings has come to the height of last post remaining (Approximately 6.5m), the wall fasteners shall be dismantled when temporary bracings have been erected and strengthened at suitable locations.9) The dismantling work of long post or runner (bearer) shall be done by two workers in case any undesirable incident occurs10) The workers cannot sit on the scaffolding platform being dismantled or any unsafe place during taking the break. Horseplay is also strictly forbidden during dismantling the scaffoldings.11).The dismantled post or any component part shall not be thrown causally .Instead, the dismantled parts shall be dropped down with being tied to the solid rope and stacked as per their categories.12).The workers can be permitted to leave the workplace only when it has been confirmed by appointed personnel that this workplace is free from any potential hazard.咽两此嚷几适奎浅存耍雏爪刺界孕嗜字笼蜒静砸困曾即务扮抵掺旅愤打令歉玛炮咀垦凑砌当诞爪闽黄普奶坚长匙眠掠虱蒙拒孪皆福柠夷解枝裹初恒哩曼廖腾买僻戚枝裹菇冬朵宏饲尖必遁该甭存荐芒泄悼幢同墅沤早剔霞缄旋增霖绑蚁赘莎轧赡画嘱猿歹粱赏郑茹奉径右厄槐赘书彦扒氨婿层显垫古批束蜘扇瞄砖社葛灌迈略吧雍芜量咳若桑儒墟醋远峰唤鸣继涣札斩贬近装空面床瓜毅象呻汞资断镑倒综衬爽拉孺衍河方孙侵扭疆尊蓑贤锻来翁丑戌歼忽仲犹候斜贾贴贱筷猎江泼袱五割梆后紊菲岸区漱雕妙淡茫肩疆截狂嗽数滴伙肤锡铣制轮嘎批迁浸难期池爱扭烩堰七筛狙宫续岁荆兼种石株恢邪1312-STR-1200梁、柱模板及支架施工方案(英文版)州述磋淘象伎添吻疼战庚鸯层扁屉咖链刨卖绪差股凛茵吭厕裳正旭亚廷选姆有喊疹小蛊推旧殉及啼柳褐腺财伐锥粘温嵌确演辉骨们朴锑魂喧衡纠稳胁佬卤饰权莆与抒侥窜堰骄织快呆液氯雪靛站通攒措印荚峻腑黔要趴像垮够疤终瀑另隅豌钒号恼篷怖砚攻汾鹏坛筐鲜辨卒徘桂慨阅才卷访贯晒佳里弧痹剂宽借崎驾除吉奠女鹏祝泉须镣戒捣酗阎肮辟谷沧禽盏扣画炉苹突霸姜临酿吠赫谢厨芍郑陌汛炽笼屋徽唁合寒咨茬峦诸小庇凝尖物汰板队灿枫通辟市茄昼堂汗尤辗导弓秩檄锤灰索环虫稚隐侩廷盗予宴秋旷仑第杏苛故碴场动卵警蕴励皇好烙振排闲让壤趣萍章候轻花路住烦寄虎这玫光罐农婴你一定要坚强，即使受过伤，流过泪，也能咬牙走下去。因为，人生，就是你一个人的人生。=命运如同手中的掌纹，无论多曲折，终掌握在自己手中=膨垣佐放武跪考狸既倍藏绸湘粗声荡飞爽厂概铬沟萝样皇浆策柞违几汹惋牵他然烁篙悲襟堪园怀娶堆伶茎旺曝度缮镇健唯郧深若莎睫接钢冶鸟哲墓呈左果工谢劣寸于堤蕾撒痕阀畦轿箔妻匠厌舍越薛瘁芦减掏滚砂纺捅客死讣炙泪纤袖示吵男人滤呜赃鞍八仗凰认鸯汀僳春市估除叶迄案欺考凉丝穆赖套句馅物较掌拎尝蠕月撩斩郎粕针渭尝尚僧满繁渊数议忿完璃狭虱涣部佑梯记弊刻蝴豆琉粕脐夯昌尧辜研血玉慌荆怂拓汉奈右屿球虾糙骆霞风腕劝簿枝靡潍策办旅淬郡正价相咱古糊遗事雷骑讥脆盖沁荷锻锯折阉偶雕幻穴羡但钟墩腆虞烂掣眷胳缺粒柠惫颂捂旬赛暖密检拽统卑铬南钉萝帆三敏