How to do a good job in technical disclosure of scaffold construction.

C-002 \x0d\ Technical disclosure record \x0d\ Project name: * * * * * Page 5, Page 65438 +0 \ x0d \ Project name * * * * * * Disclosure date. Construction unit * * * * * * * * * * * * * * * * * Name of subdivisional work \x0d\ disclosure summary basement double-row scaffolding \x0d\ 1. Construction preparation \x0d\ Material preparation: φ 48 * 3.5 ordinary steel pipes, fasteners and dense mesh safety nets. \x0d\ Environmental requirements: the steel pipe landing frame is placed on the foundation bearing platform. Before erection, the concrete of the bearing platform must reach a certain strength, and the wind force is not greater than 6. \x0d\ III。 Erection sequence \x0d\ Place sweeping poles → Erect vertical poles one by one, and then fasten them with sweeping poles → Install sweeping poles and fasten them with vertical poles or sweeping poles → Install the first-step main poles (fasten them with each vertical pole) → Install the first-step main poles → Install the second-step main poles → Add temporary braces (the upper ends are fastened with the second-step main poles, and during installation, \x0d\ III. Construction plan \x0d\ (1) External scaffolding \x0d\ 1. In this project, Block A of 1# Building adopts double-row landing scaffolding from the top surface of foundation (elevation-11.10m) to the second floor. Scaffolding row spacing 1.05m, cross bar spacing 1.5m, column spacing 1.5m, and internal vertical poles are 300mm away from the building. Outside the operation floor, a protective railing is set at a distance of 1.2m from the lower main rail. 50×250 long wood square under the vertical pole. \x0d\2。 Installation requirements of columns: \x0d\ 1). Except for the top lap joint, other joints must be butted with butt fasteners. The lap length of the column shall not be less than 1m, and it shall be fixed with two rotating fasteners. The distance from the edge of the end fastener cover plate to the rod end shall not be less than 100 mm. \x0d\2). Scaffolding footings must be firm, and cushion blocks should be laid under the vertical rod base. Scaffolding supported on the floor should be reinforced or unloaded when the height of the frame body exceeds 8m. \x0d\3), the butt fasteners on the stud should be staggered, and two adjacent stud connectors should not be located in the same span, and the staggered distance between two adjacent stud connectors in the height direction should not be less than 500mm；; The distance between the center of each connector and the main contact should not be greater than 1/3 step. (see the figure below) \x0d\x0d\ approver and disclosure person \ x0d \ c-002 \ x0d \ technical disclosure record \ x0d \ project name: Willis? Dijing Fenghui Project Building 1# * * Page 5, Page 2 \x0d\ Project name Willis? Dijing Fenghui Project 1# Building Disclosure Date 2008-4-25\x0d\ Name of Sub-project of Nantong Huaxin Construction Engineering Group Co., Ltd. \x0d\ Disclosure Summary \ x0d \ x0d \ 4) Double-row floor-standing scaffolding in the basement must be provided with vertical and horizontal sweeping poles. Longitudinal rod sweeps the floor should be directly fixed on the vertical rod which is not more than 200 mm away from the lower skin of the base with fasteners. The horizontal sweeping bar shall be directly fixed on the vertical sweeping bar directly below the vertical sweeping bar with fasteners. \x0d\5), poling bottom length is 50×250 wood square. \x0d\3。 Requirements for erection of longitudinal horizontal bar: \x0d\ 1). The longitudinal horizontal bar is arranged below the transverse horizontal bar and inside the vertical bar, and fastened with right-angle fasteners. \x0d\2) The longitudinal horizontal rods are connected by butt fasteners, and the butt joints should be staggered and should not be located in the same span. The horizontal distance between adjacent joints should not be less than 500mm, and the distance from the center of each joint to the nearest master node should not be greater than 1/3 of the longitudinal distance. \x0d\3), the connection length is not less than 1m, and the three rotating fasteners are fixed at equal intervals. The distance from the edge of the cover plate of the end fastener to the rod end of the overlapping longitudinal horizontal rod should not be less than100 mm. \x0d\4, horizontal pole erection requirements \x0d\ 1), horizontal pole must be set at the main node, and the distance between operation floors shall not be greater than 1m, and it is forbidden to dismantle it with right-angle fasteners. The center distance between the two right-angle fasteners at the main node should not be greater than150 mm. In a double bent scaffold, the overhanging length of one end against the wall is 200mm\x0d\2), and the small bars at the non-main node of the operation layer should be set at equal intervals according to the needs of supporting the scaffold, and the maximum spacing should not be greater than12 of the vertical pole spacing. \x0d\5。 Scaffolding requirements: \x0d\ 1). Scaffolding should generally be laid on three transverse small bars. When the scaffold board length is less than 2m, \x0d\ approver \ c-002 \x0d\ technical disclosure record \x0d\ project name: Willis? Dijing Fenghui Project Building 1# * * Page 5 Page 3 \x0d\ Project name Willis? Dijing Fenghui Project 1# Building Disclosure Date 2008-4-25\x0d\ Name of Sub-project of Nantong Huaxin Construction Engineering Group Co., Ltd. \x0d\ Disclosure Summary The basement double-row floor-standing scaffold \x0d\ uses two horizontal poles, and both ends of scaffold board are reliably fixed. \x0d\2), every 12 meters with a layer of scaffolding, scaffolding with shop. \x0d\3), the probe length of the scaffold board at the end of the operation layer should be 150mm, and the probe of the scaffold board should be fixed on the support rod with galvanized steel wire with a diameter of 3.2mm. \x0d\4), the scaffolding on the construction operation surface must be covered with scaffolding boards, and the distance from the wall should not be more than 20cm, and there should be no gaps, probe boards and springboard. Outside the operation surface, there should be a protective fence and a 18 cm high footboard. \x0d\6。 Fastener installation requirements: \x0d\ When the arc in the fastener is buckled on the steel pipe, the contact surface shall not be less than 30%, the tightening torque of the fastener bolt shall not be less than 40N.m and not more than 65N.m, and the opening of the butt fastener shall be upward or inward. \x0d\ The length of each rod end protruding from the edge of the cover plate should not be less than100 mm. \ x0d \ 7. Safety net laying: \x0d\ 1). The inner side of the external pole of the scaffold is covered with a green dense mesh safety net for sealing. The safety net must be firmly connected, tightly closed and fixed with the frame. Mesh: 2000 mesh/100cm2. \x0d\ 2) When the clear height below the operating surface of the scaffold construction layer exceeds 3m, a horizontal safety net must be set, and a horizontal safety net (the first net) must be set. Scaffolding construction layer should generally be laid at least two layers, the upper layer is the operation layer and the lower layer is the protection layer. When there is no protective layer under the operating scaffold, a horizontal safety net (along with the net) should be set near the operating layer; A flat net (interlayer net) is set under the operation layer every 10m. Scaffolding can be laid when the horizontal net between the inner mouth of the double bent and the outer wall of the structure cannot be protected. \x0d\3), this project is equipped with a fully enclosed safety net to prevent people or objects from falling outside the scaffold. Set net with hemp rope and scaffolding poling, crossbar binding firmly, binding spacing is less than 0.3m, in accordance with the provisions, set up a horizontal safety net at the bottom of the scaffold and between layers. \x0d\8。 Setting requirements for bracing and diagonal bracing: \x0d\ 1). Scissors are erected longitudinally from both ends of the scaffold, with a width of 7 poles, which are continuously arranged on the entire length and height of the facade. \x0d\2), the included angle between the bracing and the horizontal plane is 45 ~ 60, the bottom of the bracing should be inserted into the bottom of the shelf, and rotating fasteners should be added at the intersection with the vertical rod. \x0d\3), bracing adopts lap, the lap length is not less than 1m, and at least two fasteners are added, and the distance from the edge of the end fastener cover plate to the rod end should not be less than 10cm. \x0d\4), transverse braces should be arranged in the same section with serrated edges from bottom to top, and braces should be \x0d\ submitted by the approver \x0d\ c-002 \x0d\ Technical disclosure record \ x0d \ Project name: Willis? Dijing Fenghui Project Building 1# * * Page 5 Page 4 \x0d\ Project name Willis? Dijing Fenghui Project 1# Building Disclosure Date 2008-4-25\x0d\ Construction Unit Nantong Huaxin Construction Engineering Group Co., Ltd. Sub-project Name \x0d\ Disclosure Summary Basement double-row floor scaffolding \ x0d \ is fixed at the extension end of intersecting horizontal bars with rotary fasteners, and the distance from the center line of the rotary fasteners to the main node should not be greater than 150mm. When the diagonal braces span two steps within the span of 1, it is advisable to add horizontal bars at the intersection of longitudinal bars and fix the diagonal braces at their extended ends. \x0d\5), the corners should be provided with lateral supports, and one should be provided every 6 spans in the middle. \x0d\9。 The setting of wall connecting pieces \x0d\ 1), the vertical distance between wall connecting pieces shall not exceed 4m, and the horizontal distance shall not exceed 5m. \x0d\2), even the wall pieces should be set near the main node, and the distance from the main node should not be greater than 300mm. \x0d\3), the bottom of the wall connecting piece shall be provided with longitudinal horizontal bars from the first step. When it is difficult to install, other reliable measures should be taken to fix it. \x0d\ IV。 Scaffolding demolition \x0d\ 1. When dismantling the shelves, the operation areas should be divided, fences or warning signs should be erected around them, and the ground should be commanded by special personnel. Non-operating personnel are strictly prohibited from entering. \x0d\2。 Workers who demolish high places must wear safety helmets, safety belts, leggings and soft-soled shoes. \x0d\3. The demolition sequence should follow the principle of top-down, with construction before demolition and construction before demolition. That is to say, the railings, scaffolding, bracing and diagonal bracing should be dismantled first, and then the small bar, main bar and upright post should be dismantled in turn according to the principle of step by step. It is forbidden to dismantle from top to bottom at the same time. \x0d\4。 When removing the column, hold the column first, and then remove the last two buttons. When removing the main rail, brace and scissors, first remove the middle buckle, then hold down the middle buckle, and then untie the end buckle. \x0d\5, even the wall parts should be dismantled step by step with the demolition progress, and temporary support should be set before dismantling and throwing support, and then dismantling and throwing support. \x0d\6, demolition should be unified command, echoed up and down, coordinated action, when untied the knot related to another person, should first inform each other, in case of falling. \x0d\7。 Before dismantling large shelves, the reserved ramps, feeding platforms and passages should be reinforced to ensure the integrity, safety and stability after dismantling. \x0d\8。 When dismantling, if there is an external power cord nearby, isolation measures should be taken. It is forbidden to contact wires with poles. \x0d\9。 The removed materials shall be tied with ropes and transported slowly by pulleys. Do not throw them. Materials transported to the ground shall be classified and piled up at designated places, and dismantled on the same day, and the dismantled fasteners or wires shall be recycled centrally. \x0d\ 10。 In the process of dismantling, it is not allowed to change people in the middle. If it is necessary to change people, the dismantling situation should be explained before leaving the company. \x0d\ Auditor, disclosure person and inspector \x0d\ c-002 \x0d\ Technical disclosure record \ x0d \ Project name: Willis? Dijing Fenghui Project Building 1# * * Page 5 Page 5 \x0d\ Project name Willis? Dijing Fenghui Project 1# Building Disclosure Date 2008-4-25\x0d\ Name of Sub-project of Nantong Huaxin Construction Engineering Group Co., Ltd. \x0d\ Disclosure Summary Basement Double-row Floor Scaffolding \x0d\ IV. Allowable deviation and scaffold inspection \x0d\ 1, allowable deviation and inspection method of scaffold erection \ X0d 1 No settlement of foundation-10 observation 65438 100 Final acceptance of verticality of upright post 100 During erection, check verticality with theodolite or messenger wire and tape measure. Longitudinal distance 50 \x0d\ transverse distance 20 \x0d\ 4 Height difference of longitudinal horizontal bars: 20 level at both ends of a bar or level \ x0d \ Height difference of two longitudinal horizontal bars in the same span: 10 \ x0d \ 5 Deviation of cantilever length of transverse horizontal bars of double-row scaffolding -50 steel straightedge \x0d\2 Main inspection and installation. Whether the strength of roof concrete meets the requirements. \x0d\2), the construction load is applied before the operation layer; \x0d\3), after every 10- 13m height; \x0d\4), after reaching the design height; \x0d\5), in case of six-level gale and rainstorm (after freezing in winter); \x0d\6), stopped using for more than one month. \x0d\ In addition to the inspection according to the above stages, the Project Safety Department must conduct weekly inspection on the shelves at least twice a week, and the Technical Department will arrange surveyors to observe the deformation of the shelves in time. The observation items are mainly the verticality and deformation of the shelf. \x0d\ Main items of shelf acceptance and regular inspection: ① setting and connection of bars, construction, support and unloading platform of wall fittings; (2) Whether the fastener bolt is loose; (3), the deformation of the shelf; ④ Safety protection measures; ⑤ Whether it is overloaded; \x0d\ Approver, disclosure person and acceptance person