⑤ Common problems in concrete engineering construction records: there are no opening appraisal and pouring application records for bearing structure concrete, waterproof concrete and concrete with special requirements.
In view of the problems we often encounter in sorting out the data, we sorted out the following knowledge dry goods.
There are no temperature measurement records for concrete construction in winter (atmospheric temperature measurement records, temperature measurement records of concrete raw materials, concrete thermal calculation, temperature measurement records of concrete mixing and molding, and temperature measurement records of concrete curing).
There shall be a detailed list of materials.
In case of major changes in construction measures and processes, the construction organization design shall have change approval procedures and disclosure.
Common problems of documenter sorting out construction technical data There are many kinds of data in the construction industry, involving various processes such as on-site test, specimen submission for inspection, data editing, visa, data filing, on-site acceptance, etc.
in the drill inspection record sheet are incomplete.
The technical director and the Discloser must be the technical management personnel of the first construction company.
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The commencement report of Party A and Party B shall be stamped with official seal and signed.
The documenter shall clearly grasp the signing sequence of each document and the logical relationship between the data source of each document.
Basin friends hurry to “charge”.
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④ Common problems in on-site prestressed construction records: incomplete factory quality certificates of raw materials; The prestress application record form is not filled in or incomplete during tensioning; No test block is left for duct grouting cement slurry or mortar, and no concealed works acceptance record is made for reinforcement; There is no special construction scheme to guide the construction of prestressed concrete project.
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④ Brick (block): factory certificate or test report, energy saving filing and promotion certificate shall be provided; The factory certificate must also have the red seal of the manufacturer; The re inspection quantity shall be consistent with the account, and the blocks shall be re inspected according to the variety and model.
The project name, reinforcement specification and mobilization quantity shall be indicated on the Filing Certificate; The certificate shall indicate the project name, reinforcement specification, mobilization quantity and use position, and shall be signed by the handler.
② Certificate of welding rod (agent): it shall have brand, specification, date of manufacture, mechanical properties and chemical properties; The number of welded joints and engineering parts shall be indicated in the welding report; Trial welding must be carried out before formal welding of reinforcement, and formal welding can be carried out only after the welding is qualified.
(Note: the records in your notebook cannot be used as construction logs) 7 quality certificates or test (inspection) reports of raw materials, semi-finished products and finished products.
Note: the type of ready mixed mortar shall be consistent with the design requirements, and the construction in winter shall have antifreeze performance.
The construction log must be recorded according to the actual situation every day, with complete contents.
If the certificate is a copy, it shall also be sealed by the manufacturer and signed by the operator, indicating the storage place and time of the original; The project position, manufacturer, specification, quantity and batch number of reinforcement used in the re inspection report shall be fully marked (it must be indicated in the entrustment form).
Concrete construction records are missing or incomplete, which can not reflect the whole process of concrete engineering construction.
There is no temperature measurement record of mass concrete (including: layout plan of temperature measurement hole, molding temperature and curing temperature).
The technical disclosure must be carried out by items, with complete signatures.
After being approved by the technical director (Chief Engineer) of the construction unit, the supervisor shall organize the construction party and the construction party to jointly review and implement after approval.
The content should be specific, targeted and can play a guiding role; For special processes and key processes, detailed construction schemes or operation instructions must also be prepared; Prepare and disclose operation procedures for new processes, technologies and materials.
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The warranty period is 3 months from the production date.
① Steel: the certificate of conformity shall be consistent with the record certificate and the manufacturer, and the specification and quantity shall be consistent; The mechanical properties or chemical analysis data on the certificate shall be complete.
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③ Common problems in pile foundation construction records: ❶ lack of pile position setting out records, plan and pile position review data; Lack of audit record of pile foundation drawings; ❷ lack of piling construction organization design (construction scheme); Lack of pile test, pile supplement and pile cutting records; ❸ incomplete factory certificate data of precast pile: Lack of ex factory certificate, permit and re inspection report of cement, reinforcement, gravel and admixture for pile; Lack of pile trial matching and pressure test reports, and some certificates and sheets are inconsistent; No single pile bearing capacity test report; Lack of acceptance records of concealed works of cast-in-place pile reinforcement cage; ❹ Insufficient retention of concrete test block of cast-in-place pile; ❺ During the construction of bored cast-in-place pile, the hole diameter and hole depth were not measured; ❻ The pile position as built drawing does not meet the requirements; ❼ The construction and inspection records of reinforced concrete of pile cap and the appearance inspection records of anchor bars of pile cap are missing.
The construction organization design shall be prepared before commencement and attached with a review card.
It is strictly prohibited to sell and use expired mortar products.
⑥ Settlement observation record: according to the design requirements and specifications, for any project requiring settlement observation, the construction unit shall entrust a qualified surveying unit to carry out settlement observation during construction and after completion.
8 construction record ① foundation treatment record foundation treatment scheme: it shall be signed and sealed by the design and survey personnel; The construction test records of foundation treatment shall be complete; Indicate how to treat the treated parts and whether the geology meets the design requirements or the provisions of corresponding construction specifications; The inspection record of foundation treatment shall be signed and approved by the construction (supervision) unit.
② Common problems of foundation drilling records: No drilling records; There is no plan layout of exploration points, and the points on the plan do not correspond to the on-site drilling exploration points; The hammer weight, free fall distance, drill diameter, drill date, signature of drill inspector, etc.
③ Ready mixed mortar certificate: ❶ Type inspection: during normal production, type inspection shall be conducted for various mortar products at least once a year; ❷ Delivery inspection: each batch of ready mixed mortar shall be subject to delivery inspection before delivery, and the inspection report shall be kept for future reference; ❸ Delivery inspection: when ready mixed mortar enters the site, it shall be sent to a qualified testing organization for delivery inspection in strict accordance with the inspection items and inspection batch specified in the technical specification for application of ready mixed mortar (JGJ / t223-2010).
⑥ Doors and windows: PVC plastic steel doors and windows, aluminum alloy doors and windows, type inspection reports, factory inspection reports, various raw material certificates or inspection reports shall be complete; Sampling inspection shall be timely, and it is not allowed to use it before inspection; Fire door: it shall have the production approval certificate and factory certificate from the fire department.
The construction organization design is divided into the following three levels: (1) construction organization design of unit project; (2) Professional construction organization design; (3) Method statement (pay attention to time sequence).
⑤ Waterproof materials: there shall be filing certificate, qualification certificate and test report; The construction qualification certificate of waterproof team shall be provided; Sampling inspection and re inspection shall be conducted as required, and the number of Representatives shall be filled in the re inspection report.
All raw materials, semi-finished products and finished products used in the project must have quality certificates or inspection reports, indicating the mobilization quantity and use parts, and signed by the operator; The copy of the certificate shall be stamped with the official seal of the supplier, indicating the storage place of the original, and the test report shall have the witness sampling seal.
In the construction log, the mobilization time and quantity of materials shall be consistent with the material account, certificate and re inspection report; The retention time and pressure test time of mortar and concrete test blocks recorded in the construction log shall be consistent with the test block report.
Specification: ❶ Buildings with foundation design grade of class A; ❷ Buildings with design grade B on composite foundation or soft foundation; ❸ Buildings with additional floors and expansion; ❹ Buildings affected by the excavation of adjacent deep foundation pit or the change of environmental factors such as site groundwater; ❺ Projects requiring accumulated construction experience or design back analysis; ❻ Projects specified in code for high rise buildings and technical code for building pile foundation..
Projects with large construction logs shall be recorded separately according to disciplines.
The joint review of drawings shall be sorted out according to disciplines; The reply of the design department shall be clear; The signatures and seals of the four parties must be complete.
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The signatures and seals of the four parties for design change must be complete; It shall be signed by the chief engineer of the construction unit.
