T/HVIA 05-2024 Winter-tolerant Flexible Wall Solar Greenhouse Construction Technical Regulations

Scope

Main Technical Content: Construction Technical Specifications for Winter-Type Flexible Wall Daylight Greenhouses 1 Scope This document specifies the terms and definitions, general requirements, and technical requirements for winter-type flexible wall daylight greenhouses. It applies to the construction of single winter-type flexible wall daylight greenhouses in the plains of Hebei Province, excluding the dam areas of Chengde and Zhangjiakou. 2 Normative Reference Documents The following documents are essential for the application of this document. For dated reference documents, only the version specified on the date applies to this document. For undated reference documents, the latest version (including all amendments) applies to this document. - GB/T 51183: Load Codes for Agricultural Greenhouse Structures - GB/T 51424: Design Standards for Agricultural Greenhouse Structures - GB 50661: Welding Specifications for Steel Structures 3 Terms and Definitions 3.1 Flexible Materials A rollable and retractable covering material made of a waterproof fabric and an insulating core material, which has heat insulation and thermal insulation functions. 3.2 Solar Active Heat Storage and Release System A heat storage and release device that accumulates thermal energy from partial solar radiation in greenhouses into heat storage media such as water and releases it when needed to raise indoor temperature during low-temperature periods, aided by power cycles and insulation storage equipment. 3.3 Air-Soil Heat Exchange Soil Heating System A heat transfer device that uses power cycle equipment to transfer heat energy from the top of greenhouses during high-temperature periods to the ground, increasing soil temperature. 4 General Requirements 4.1 Site Selection The location of greenhouse construction should comply with the management requirements for agricultural greenhouse land. It should be selected in areas with sufficient sunlight, n

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