Pset_PrecastConcreteElementGeneral Production and manufacturing related properties common to different types of precast concrete elements. The Pset can be used by a number of subtypes of IfcBuildingElement. If the precast concrete element is a sandwich wall panel each structural layer or shell represented by an IfcBuildingElementPart may be attached to a separate Pset of this type, if needed. Some of the properties apply only for specific types of precast concrete elements. IfcBeam IfcBuildingElementProxy IfcChimney IfcColumn IfcFooting IfcMember IfcPile IfcPlate IfcRamp IfcRampFlight IfcRoof IfcSlab IfcStair IfcStairFlight IfcWall IfcCivilElement IfcBeam,IfcBuildingElementProxy,IfcChimney,IfcColumn,IfcFooting,IfcMember,IfcPile,IfcPlate,IfcRamp,IfcRampFlight,IfcRoof,IfcSlab,IfcStair,IfcStairFlight,IfcWall,IfcCivilElement TypeDesignator Type designator for the precast concrete element. The content depends on local standards. For instance in Finland it usually a one-letter acronym, e.g. P=Column, K=reinforced concrete beam,etc. Type Designator 特定子の記述 プレキャストコンクリート要素の特定子（部位）を記述する。内容はローカルな（各国の）標準（規格）に依存する。例えばフィンランドでは、柱はP、梁はKのように通常、頭文字1文字で表す。 CornerChamfer The chamfer in the corners of the precast element. The chamfer is presumed to be equal in both directions. Corner Chamfer 面取り プレキャストコンクリート要素の面取り。面取りは両方向で等しいものとする。 ManufacturingToleranceClass Classification designation of the manufacturing tolerances according to local standards. Manufacturing Tolerance Class メーカーの認可分類 ローカルな標準によるメーカーの認可分類。 FormStrippingStrength The minimum required compressive strength of the concrete at form stripping time. Form Stripping Strength 脱型強度 脱型時におけるコンクリートの最小必要圧縮強度。 LiftingStrength The minimum required compressive strength of the concrete when the concrete element is lifted. Lifting Strength 吊り上げ強度 コンクリート要素が吊り上げられる時のコンクリートの最小必要圧縮強度。 ReleaseStrength The minimum required compressive strength of the concrete when the tendon stress is released. This property applies to prestressed concrete elements only. Release Strength リリース強度 緊張力が解放される時のコンクリートの最小必要圧縮強度。この属性はプレストレストコンクリート要素のみに適用される。 MinimumAllowableSupportLength The minimum allowable support length. Minimum Allowable Support Length 最小許容支持長さ 最小許容支持長さ。 InitialTension The initial stress of the tendon. This property applies to prestressed concrete elements only. Initial Tension 初引張力 緊張材の初期応力。この属性はプレストレストコンクリート要素のみに適用される。 TendonRelaxation The maximum allowable relaxation of the tendon (usually expressed as %/1000 h).This property applies to prestressed concrete elements only. Tendon Relaxation 緊張材のリラクセーション 緊張材の最大許容リラクセーション（応力弛緩、－係数）。通常、1000時間あたりの割合（%)。この属性はプレストレストコンクリート要素のみに適用される。 TransportationStrength The minimum required compressive strength of the concrete required for transportation. Transportation Strength 輸送強度 輸送に必要なコンクリートの最小必要圧縮強度。 SupportDuringTransportDescription Textual description of how the concrete element is supported during transportation. Support During Transport Description 輸送中の支持に関する記述 プレキャストコンクリート要素が輸送中における支持方法について書かれたテキスト文書。 SupportDuringTransportDocReference Reference to an external document defining how the concrete element is supported during transportation. Support During Transport Doc Reference 輸送中の支持に関する参考文献 プレキャストコンクリート要素が輸送中における支持方法について書かれた外部ドキュメントの参照。 HollowCorePlugging A descriptive label for how the hollow core ends are treated: they may be left open, closed with a plug, or sealed with cast concrete. Values would be, for example: 'Unplugged', 'Plugged', 'SealedWithConcrete'. This property applies to hollow core slabs only. Hollow Core Plugging くぼみの充填 （定着部の？）くぼみをどのように扱うのかについて書かれたラベル：開けたままにするか、プラグで塞ぐ、または後詰めコンクリートで塞ぐ。例えば、「塞がない」、「塞ぐ」、「コンクリートで塞ぐ」と書かれるだろう。この属性はスラブに開けられたくぼみにも適用される。 CamberAtMidspan The camber deflection, measured from the midpoint of a cambered face of a piece to the midpoint of the chord joining the ends of the same face, as shown in the figure below, divided by the original (nominal) straight length of the face of the piece. Camber At Midspan BatterAtStart The angle, in radians, by which the formwork at the starting face of a piece is to be rotated from the vertical in order to compensate for the rotation of the face that will occur once the piece is stripped from its form, inducing camber due to eccentric prestressing. Batter At Start BatterAtEnd The angle, in radians, by which the formwork at the ending face of a piece is to be rotated from the vertical in order to compensate for the rotation of the face that will occur once the piece is stripped from its form, inducing camber due to eccentric prestressing. Batter At End Twisting The angle, in radians, through which the end face of a precast piece is rotated with respect to its starting face, along its longitudinal axis, as a result of non-aligned supports. This measure is also termed the ‘warping’ angle. Twisting Shortening The ratio of the distance by which a precast piece is shortened after release from its form (due to compression induced by prestressing) to its original (nominal) length. Shortening PieceMark Defines a unique piece for production purposes. All pieces with the same piece mark value are identical and interchangeable. The piece mark may be composed of sub-parts that have specific locally defined meaning (e.g. B-1A may denote a beam, of generic type ‘1’ and specific shape ‘A’). Piece Mark DesignLocationNumber Defines a unique location within a structure, the ‘slot’ for which the piece was designed. Design Location Number 生産（設計）と製造（メーカー）でタイプの異なるプレキャストコンクリート要素（部材）に、共通の属性（プロパティ）を関連付けた。Psetは多くのIfcBuildingElementのサブタイプとして使用できる。もしプレキャストコンクリート要素が壁板であるとしたら、IfcBuildingElementPartで表される各々の構造的な層かシェルは、このタイプの別々のPsetで結び付くかもしれない。幾つかの属性が、特定なタイプのプレキャストコンクリート要素のためだけに適用される。