Following the resumption of construction projects, there was a problem of “slow measurement, large error and large back-to-work”, mainly because of the direct measurement of pre-trip processing, which is presented here in the context of real project cases and in the context of cad fast-looking mapping applications, summarizing specific processes and key techniques for pre-trip processing。
Background of the project
The project for the construction of a new high-rise residential building in a city, involving construction, structure, installation of three specialties, is planned to complete the master structure measurement within 30 days to provide a basis for the procurement of materials and the movement of teams。
Ii. Pre-processing full process
1. Uniformized version of drawings
The first task after resumption is to avoid using old drawings and miscalculations as measurements. The project will need to have a dedicated interface, confirm that the most up-to-date version of the map is used and mark the change on the latest version。
The label can then be converted through the cad fast map sky map conversion (t3) to a complete, up-to-date image into a t3 format archive, which will easily solve the problem of incomplete and incompatible high-volume graphic import measurement software and will not require the installation of an additional sky map。
Key techniques: post-construction version of the drawing confirms the need for a written record, to be confirmed by a tripartite signature of the designer, builder and builder, and to avoid subsequent measurement deviations due to disagreement over the version。
2. Model law
Charts are drawn in layout spaces, measurement software does not support the opening of layout drawings, using the layout model function of cad fast-looking maps, which allows the layout to be converted to a model using a single key, then using the editor's zoom function, to adjust the scale。
Key techniques: add vague labels (e. G. Partial beam cross-section sizes not indicated, steel bands blurry), harmonize units, and delete duplicate labels。
3. Multi-professional cross-checking of drawings
The multidisciplinary nature of residential projects requires early reconciliation of buildings, structures and installation of drawings to avoid a disconnect between measurement and on-site construction! The floors can be split through cad quick view。
Cad rapid viewing official website - may the unobserved drawings of the world automatically recognize all the frames and their names and automatically name them. You can also change the name of any drawing to ensure that it is consistent and then synchronized with the measurement software to avoid repetition of measurement settings。
Key skills: time constraints after resumption of work do not require a point-by-point check to focus on specialized cross-hf conflict points。
1 checks " size, height, and match of components " to ensure consistency in nodal construction practices, to complement missing nodes details and to ensure accurate calculation of work volume for measurement of time nodes。
2 checks the "space conflict between pipelines and components" to avoid pre-laying of re-entry tubes with pillars and steel bars。
4. Measurement rules and assumptions for basic information
Based on the measurement of post-construction needs, rules for pre-design volumes and basic information, the basis for determining the calculation is the selection of local quotas and the gb50500-2013 price instruction for the list of construction works, specifying that concrete volumes are calculated by volume, steel bands by length of tie and loss factor, which can be indicated in the software and can be readily viewed by project personnel。
Key techniques: the core parameters of height, design floor height and earthquake resistance (highness directly affecting earthquake resistance levels, and hence steel anchoring and docking levels) are indicated at the corresponding position of the drawings and the high impact is extremely costly, as the building is over 20 m high from the design room field floor to the top of the roof, which requires an over-cost calculation。
The pre-processing of drawings, combined with cad rapid viewing t3, automatic partitioning, layout model, etc., will significantly increase measurement efficiency and control errors and provide solid safeguards for rapid advance and cost control after project resumption。
