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来源:http://www.jnlsgbz.com/ 日期:2021-09-10 发布人:lasen
钢支撑施工进场检验
Mobilization inspection of steel support construction
加工车间根据策划图纸进行钢支撑以及钢围檩加工,加工时应统一编号,按序加工运输;现场人员对进场构件需逐一进行外观、规格、使用部位、材质、数量等进行检验,并完成交接手续。
The processing workshop shall process the steel support and steel purlin according to the planning drawings. During processing, it shall be numbered uniformly, processed and transported in sequence; The site personnel shall inspect the appearance, specification, use position, material, quantity, etc. of the mobilized components one by one, and complete the handover procedures.
钢支撑安装
Steel support installation
(1)安装前准备工作
(1) Preparation before installation
a.进行安全技术交底;
a. Conduct safety technical disclosure;
b.进行预拼装,检验加工精度;
b. Pre assemble and inspect the machining accuracy;
c.检查确认供电、供水、道路、排水、照明等满足安全文明施工的要求;
c. Check and confirm that power supply, water supply, roads, drainage and lighting meet the requirements of safe and civilized construction;
d.材料进场数量满足施工要求,并按规范要求堆放、标识。
d. The mobilization quantity of materials shall meet the construction requirements, and shall be stacked and marked according to the specification requirements.
(2)安装
(2) Installation
钢板桩施工租赁
a.钢支撑在土方开挖至设计要求标高后立即安装,根据土方开挖顺序依次推进;
a. The steel support shall be installed immediately after the earth excavation reaches the elevation required by the design, and shall be carried out in turn according to the earth excavation sequence;
b.钢围檩安装根据方案策划编号逐节安装;
b. The steel purlin shall be installed section by section according to the plan number;
c.钢托加安装顺直,并在同一标高位置,钢围檩水平中线与支撑轴线在同一水平面上,误差必须满足相关规范要求;
c. The steel bracket shall be installed straight and at the same elevation. The horizontal center line of the steel purlin and the support axis shall be on the same horizontal plane, and the error must meet the requirements of relevant specifications;
d.架设支撑前,仔细复核两侧围檩与立柱、托梁的标高;
d. Before erecting support, carefully recheck the elevation of purlin, column and joist on both sides;
e.构件吊装施工过程中由专人统一指挥;
e. Special personnel shall be assigned for unified command during component hoisting construction;
钢支撑施工预应力施加与控制
Application and control of prestress in steel support construction
a.为支撑施加预应力所用的千斤顶和油泵系统经过计量检定,使用时在检定有效期内;
a. The jack and oil pump system used for prestressing the support have been verified by measurement and are within the validity period of verification;
b.钢支撑施工安装 完毕后,及时检查各节点的连接状况,经确认符合要求后可施工加预应力;
b. After the construction and installation of steel support, timely check the connection status of each node, and add prestress after confirming that it meets the requirements;
c.预应力根据设计要求分级施加,设计无要求时根据相关规范施加;
c. The prestress shall be applied by stages according to the design requirements, and if there is no design requirement, it shall be applied according to relevant specifications;
d.预应力施加时检查各连接部位的稳定性、牢固性,遇到异常情况立即停止,排除隐患后方可继续作业;
d. When prestress is applied, check the stability and firmness of all connecting parts, stop immediately in case of abnormal conditions, and continue the operation after eliminating hidden dangers;
e.预应力加至设计要求的额定值后,对所有螺栓进行二次复紧并检查各连接节点情况,必要时对节点进行加固,待额定压力稳定后锁定;
e. After the prestress is added to the rated value required by the design, all bolts shall be re tightened and the connecting nodes shall be checked. If necessary, the nodes shall be reinforced and locked after the rated pressure is stable;
f.施工加预应力过程中,做好记录。
f. Records shall be made during construction and prestressing.
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