번역 결과
"安装底板" ~ 중 영어 번역
중국어
安装底板
영어
Install the base plate
관련 콘텐츠
'要求模板表面平整度≤5毫米；,⑵ 用塔吊将外侧模吊起，并与底模平台固定，安装前工作平台外侧模安全网；,⑶ 分别安装外滑梁前后拉杆；,⑷ 挂篮的主要部件安装完毕后，根据1#段的设计位置调整挂篮的中线、水平位置和各点标高，并测定预埋件、预留孔位，模板涂专用脱模剂；,⑸ 安装内模、端模及梁体悬灌,① 当外侧模和底就位后，吊装底板钢筋网片，安装底板纵向预应力筋波纹管，安装后下横梁吊杆预留孔模型；,② 绑扎腹板钢筋，安装腹板纵向、竖向预应力筋波纹管及通风预留孔模型；,③ 将内顶模桁架固定在内滑梁上，用塔吊吊起滑梁，并用滑梁前后吊杆固定，调整内顶模桁架位置；,④ 安装内模并预留混凝土入模窗口；,⑤ 安装外侧模与内模间拉条和腹板端模；,⑥ 绑扎顶板钢筋，安装顶板纵、横向预应力筋波纹管及挂篮外滑梁，内滑梁后吊杆预留孔模型；,⑦ 检查合格后，即可进行混凝土浇筑。,四、挂篮预压,挂篮预压采用在底篮纵向分配梁上张拉钢绞线的方法进行。在承台混凝土施工时，在承台上与1#段混凝土重心垂直对应的位置预埋钢绞线连接件。每个挂篮下预埋20根φ15.24的钢绞线，每根最大张拉力为150KN，每个挂篮最大张拉力为3100KN，为最大梁段（1#段，混凝土数量为93m3）重量（2376KN）的1.3倍。,挂篮预压步骤：,1、挂篮拼装完成后即可进行挂篮预压；,2、用专用连接器将承台上预埋的φ32螺纹钢与φ15.24钢绞线连接上；,3、严格按照监控单位要求布设测点；,4、在挂篮底篮纵梁上布设2根I30工字钢作为分配梁，用YC25型千斤顶从包往内两侧对称、前后两端同步进行逐根张拉；,5、精确测量，并仔细记录各种荷载下挂篮的弹性变形和非弹性变量形。,五、挂篮的移动,前一梁段浇筑完毕，等混凝土强度达到设计强度的85%，即可进行纵向预应力筋的张拉，然后挂篮前移，横、竖向预应力筋的张拉待挂篮前移之后进行，以缩短每段施工工期。,1、接长轨道；,2、将底模平台后横梁用手拉葫芦悬吊于外模走行梁上；,3、拆除底模平台后吊杆；,4、同时下放前吊杆，外模走行梁前吊杆和悬吊滚轮，使底模平台和外侧模在自重作用下脱模；,5、拆除挂篮后锚；,6、轨道前端安装手拉葫芦，牵引主构架前移，并带动底模平台和外侧模前移；,7、注意事项：,⑴ Ｔ构两端的挂篮应同时移动。,⑵ 拆除后锚前要认真检查反扣轮各部联结是否可靠，如发现异常情况时及时处理。,⑶ 挂篮移动前要调整底模平台和外侧模水平，并仔细检查挂篮各部位联结情况,检查挂篮上的安全网、钢筋头或其它绳索有无和箱梁钩挂情况，发现问题及时处理。,⑷ 挂篮移动要统一指挥，两主构架的顶推油缸要尽量同步，并防止脉冲式行走。,⑸ 移动过程中要用两台手拉葫芦拉住挂篮后节点，防止溜车事故发生。,六、挂篮施工中的安全措施,挂篮施工处于高空作业，不仅荷载大，而且各工序环节较多。因此，在整个施工过程中就要求操作紧张、细致，注意安全。特别是在人员、设备和操作三个方面，采取有效的安全措施。,㈠、人员的安全保障措施,1、挂篮施工要严格实行统一指挥，除现场指挥人员外，任何人都不得指挥操作。,指挥操作采用的各种手势、旗号、哨音等讯号，应事先作出统一规定，并要严格遵守，不得中途随意变更；以免发生误会。远距离的指挥联系，应当采用对讲机直接通话。,2、参加挂篮施工的人员要有明确的分工，并建立岗位责任制。劳动分工应尽可能稳定，不要在操作前临时调换工种，以避免由于技术不熟练而发生意外事故。操作人员不仅要认真学习，而且要熟悉各种操作规程，懂得指挥信号，并严格遵守劳动纪律。,3、高空作业人员要经过体格检查，证明确无心脏病、高血压、贫血症、色盲等不适于高空起重作业的疾病才能担任高空业。如工作前或工作中，在精神体力方面感到不能适应高空作业时，应酌情另行安排工作。,4、严禁酒后上岗操作。,5、高空作业人员在工作时，一定要系上安全带，并不准穿拖鞋、皮鞋。在比较集中的高空作业区的周围，要安装临时栏杆，并设置安全网。参加操作施工的人员都要戴上安全帽。,在冬季施工中，如受到冰霜雨雪的影响，则必须采取防滑措施。,各种上下爬梯与施工脚手架都应当牢固可靠。,在悬灌施工中，要指定专职或兼职的救生员，并配备车辆和必要的救护工具。,6、悬灌作业区严禁非工作人员入内，外来参观者需经同意后方可由熟悉现场的人员带领参观。,结束语,我国现在的大跨度桥梁的施工普遍采用了挂篮悬臂施工工艺，这也是其自身的施工优点决定的。在施工的过程中，施工单位要积极进行施工工序的监理，保证施工工序的规范性和安全性，积极对工序参数进行测定，保证整个工程的线形性能以及事后的检测工作的顺利进行。加强对合拢阶段的施工控制，重视合拢阶段这个桥梁施工节点，保证桥梁安全。施工单位还需积极积累施工经验，为今后的工程施工奠定基础。'
~ 중
영어
번역 대상：
The flatness of formwork surface is required to be ≤ 5mm;,(2) lift the outer formwork with a tower crane and fix it with the bottom formwork platform. Install the safety net of the outer formwork of the front working platform;,(3) install the front and rear pull rods of the outer sliding beam respectively;,(4) after the main components of the hanging basket are installed, adjust the center line, horizontal position and elevation of each point of the hanging basket according to the design position of the 1# section, measure the embedded parts and reserved hole positions, and apply special release agent to the formwork;,(5) installation of internal formwork, end formwork and cantilever grouting of beam body,① When the outer formwork and bottom are in place, hoist the reinforcement mesh of the bottom plate, install the longitudinal prestressed reinforcement bellows of the bottom plate, and install the reserved hole model of the suspender of the rear lower cross beam;,② Bind the web reinforcement, install the longitudinal and vertical prestressed reinforcement bellows and ventilation reserved hole model of the web;,③ Fix the inner top formwork truss on the inner sliding beam, lift the sliding beam with a tower crane, fix it with the front and rear Suspenders of the sliding beam, and adjust the position of the inner top formwork truss;,④ Install the internal formwork and reserve the concrete formwork window;,⑤ Install the brace between the outer formwork and the inner formwork and the web end formwork;,⑥ Bind the roof reinforcement, install the corrugated pipe of longitudinal and transverse prestressed reinforcement of the roof and the outer sliding beam of the hanging basket, and the reserved hole model of the suspender behind the inner sliding beam;,⑦ After passing the inspection, concrete pouring can be carried out.,4、 Hanging basket preloading,The preloading of the hanging basket is carried out by tensioning the steel strand on the longitudinal distribution beam of the bottom basket. During the construction of bearing platform concrete, steel strand connectors shall be embedded at the position perpendicular to the center of gravity of 1# section concrete on the bearing platform. 20 pieces are embedded under each hanging basket φ The maximum tensioning force of each strand of 15.24 is 150kn, and the maximum tensioning force of each hanging basket is 3100kn, which is 1.3 times of the weight (2376kn) of the largest beam section (1# section, concrete quantity of 93m3).,Preloading steps of hanging basket:,1. After the hanging basket is assembled, the hanging basket can be preloaded;,2. Use special connectors to connect the embedded on the bearing platform φ 32 rebar and φ 15.24 steel strand connection;,3. Arrange measuring points in strict accordance with the requirements of the monitoring unit;,4. Two i30 I-beams are arranged on the longitudinal beam of the hanging basket at the bottom of the hanging basket as the distribution beam, and yc25 jacks are used to tension one by one symmetrically from the package to both sides and synchronously at the front and rear ends;,5. Accurately measure and carefully record the elastic deformation and inelastic deformation of the hanging basket under various loads.,5、 Movement of hanging basket,After the pouring of the previous beam section is completed, the longitudinal prestressed reinforcement can be tensioned when the concrete strength reaches 85% of the design strength, and then the hanging basket moves forward, and the horizontal and vertical prestressed reinforcement can be tensioned after the hanging basket moves forward, so as to shorten the construction period of each section.,1. Lengthen the track;,2. Hang the rear cross beam of the bottom formwork platform on the traveling beam of the external formwork with chain block;,3. Remove the rear suspender of the bottom formwork platform;,4. At the same time, lower the front suspender, the front suspender of the external formwork walking beam and the suspension roller to demould the bottom formwork platform and the external formwork under the action of self weight;,5. Remove the rear anchor of the hanging basket;,6. A chain block is installed at the front end of the track to pull the main frame forward and drive the bottom formwork platform and outer formwork forward;,7. Precautions:,(1) the hanging baskets at both ends of the T-structure shall move at the same time.,(2) before removing the rear anchor, carefully check whether the connection of each part of the reverse buckle wheel is reliable, and deal with it in time in case of any abnormality.,(3) before moving the hanging basket, adjust the level of the bottom formwork platform and the outer formwork, carefully check the connection of various parts of the hanging basket, check whether the safety net, reinforcement head or other ropes on the hanging basket are hooked with the box girder, and deal with the problems in time.,(4) the two main cylinders shall be driven synchronously to prevent the two main cylinders from moving simultaneously.,(5) during the movement, two chain hoists shall be used to hold the rear node of the hanging basket to prevent car sliding accidents.,6、 Safety measures in hanging basket construction,Hanging basket construction is in high-altitude operation, which not only has large load, but also has many processes. Therefore, in the whole construction process, it is required to operate nervously and carefully and pay attention to safety. Especially in terms of personnel, equipment and operation, effective safety measures shall be taken.,I. personnel security measures,1. Unified command shall be strictly implemented for hanging basket construction, and no one shall command the operation except the on-site commander.,All kinds of gestures, flags, whistles and other signals used in command and operation shall be uniformly stipulated in advance and strictly observed, and shall not be changed at will in the middle; To avoid misunderstanding. For long-distance command and contact, walkie talkie shall be used for direct communication.,2. The personnel participating in the hanging basket construction shall have a clear division of labor and establish a post responsibility system. The division of labor should be as stable as possible. Do not change the type of work temporarily before operation, so as to avoid accidents due to unskilled technology. Operators should not only study carefully, but also be familiar with various operating procedures, understand command signals, and strictly abide by labor discipline.,3. Workers working at heights shall undergo physical examination to prove that they are free from heart disease, hypertension, anemia, color blindness and other diseases that are not suitable for high-altitude lifting operations. If you feel that you can't adapt to work at height in terms of mental and physical strength before or during work, you should arrange work separately as appropriate.,4. It is strictly prohibited to work after drinking.,5. When working at height, operators must wear safety belts and are not allowed to wear slippers and leather shoes. Temporary railings and safety nets shall be installed around the concentrated high-altitude operation area. All personnel participating in the operation and construction shall wear safety helmets.,In winter construction, if affected by frost, rain and snow, anti-skid measures must be taken.,All kinds of climbing ladders and construction scaffolds shall be firm and reliable.,During the suspension grouting construction, full-time or part-time lifeguards shall be appointed, and vehicles and necessary rescue tools shall be equipped.,6. Non staff are not allowed to enter the suspended irrigation operation area. External visitors can only be led by personnel familiar with the site with consent.,Concluding remarks,The hanging basket cantilever construction technology is widely used in the construction of long-span bridges in China, which is also determined by its own construction advantages. In the process of construction, the construction unit shall actively supervise the construction process, ensure the standardization and safety of the construction process, and actively measure the process parameters to ensure the linear performance of the whole project and the smooth progress of subsequent testing. Strengthen the construction control of the closure stage, pay attention to the closure stage as the bridge construction node, and ensure the safety of the bridge. The construction unit also needs to actively accumulate construction experience to lay a foundation for future project construction.。