目次
第１部

本書の利用方法

1. スパン表の種類 ······························································································ 2
2. スパン表の適用範囲と使用上の留意点
2.1 スパン表の適用範囲 ··················································································· 3
2.2 スパン表使用上の留意点
2.2.1 対象住宅の構法と規模 ··········································································· 72.2.2 軸組の架構形式 ···················································································· 72.2.3 基礎梁区画の形状 ················································································· 92.2.4 荷重 ································································································· 102.2.5 小屋組の架構形式 ··············································································· 192.2.6 木質材料の力学特性 ············································································ 19第２部

横架材スパン表

1. スパン表の種類 ···························································································· 24
2. スパン表の参照手順 ······················································································ 26
3. スパン表の適用条件 ······················································································ 27
4. 主スパン表
4.1 床梁の必要最小せい ················································································· 28
4.2 跳出し梁の必要最小せい··········································································· 174
4.3 小屋梁の必要最小せい ············································································· 234
4.4 大引の可能最大スパン ············································································· 305
4.5 根太の可能最大スパン ············································································· 308
4.6 母屋・棟木の可能最大スパン····································································· 312
4.7 垂木の可能最大スパン ············································································· 319
4.8 隅木の可能最大スパン ············································································· 327
4.9 登り梁の可能最大スパン··········································································· 334
4.10 登り梁にかかる母屋の可能最大スパン ······················································· 341

第３部

基礎スパン表1. 基礎スパン表の種類 ····················································································· 350
2. 基礎スパン表の適用範囲 ··············································································· 350
3. 基礎スパン表の参照方法 ··············································································· 352
4. 基礎スパン表
4.1 布基礎底盤の幅 ······················································································ 353
4.2 基礎梁の長期荷重時の主筋量····································································· 360i

4.3 基礎梁の短期水平荷重時の主筋量 ······························································· 371
4.4 べた基礎底盤の配筋 ················································································ 379

付録ディスク収録内容
第１部

本書の利用方法

第２部

横架材スパン表*第３部

基礎スパン表*第４部

モデルプランによる解説

第５部

横架材スパン表の作成条件

第６部

基礎スパン表の作成条件

Zマーク表示金物

梁受け金物の使い方*紙面に掲載していない荷重条件及び樹種のスパン表を含む。

本書の内容は、本書発行時点での法令等に準じたものであり、予告なく正誤表などにより変更されることがある。
本書の内容は、細心の注意を払い作成しているが、いかなる保証をするものではない。設計、施工、工事監理等の業務へのご活用にあたっては、利用者自身の判断と責任において実施していただくものとする。
また、本書の利用に起因して発生する直接、間接、特別又は必然の損害について、発行者及び改訂編集委員会は何らの責任を負うことはない。
本書のご活用にあたっては、上記事項をあらかじめご了承いただきたい。

ii