8(建筑构造)变形缝.ppt

第七章第七章变形缝本章主要介绍变形缝的基本概念、变形缝的设置原则、变形缝的类型与构造,要求了解变形缝的种类和设置原则,掌握各类变形缝的构造做法。本章提要 Evaluation only. Evaluation only. Created with Client Profile . Created with Client Profile . Copyright 2004-2011 Aspose Pty Ltd. Copyright 2004-2011 Aspose Pty Ltd. 本章内容?1变形缝的基本概念与设置原则?2变形缝的构造 Evaluation only. Evaluation only. Created with Client Profile . Created with Client Profile . Copyright 2004-2011 Aspose Pty Ltd. Copyright 2004-2011 Aspose Pty Ltd. 1 变形缝的基本概念与设置原则?变形缝是为防止建筑物在外界因素(温度变化、地基不均匀沉降及地震)作用下产生变形,导致开裂甚至破坏而人为设置的适当宽度的缝隙。?变形缝包括伸缩缝、沉降缝和防震缝三种类型。 变形缝的概念 Evaluation only. Evaluation only. Created with Client Profile . Created with Client Profile . Copyright 2004-2011 Aspose Pty Ltd. Copyright 2004-2011 Aspose Pty Ltd. ?为防止建筑构件因温度变化而产生热胀冷缩,使房屋出现裂缝,甚至破坏,沿建筑物长度方向每隔一定距离设置的垂直缝隙称为伸缩缝,也叫温度缝。?伸缩缝的位置和间距与建筑物的材料、结构形式、使用情况、施工条件及当地温度变化情况有关。。 变形缝的设置原则 伸缩缝 Evaluation only. Evaluation only. Created with Client Profile . Created with Client Profile . Copyright 2004-2011 Aspose Pty Ltd. Copyright 2004-2011 Aspose Pty Ltd. 二、变形缝设置的要求伸缩缝设置原因: 建筑物长度结构类型设置部位: 基础部分不必断开, 楼面内、外墙面其他部位屋面断开女儿墙、檐口地下室 Evaluation only. Evaluation only. Created with Client Profile . Created with Client Profile . Copyright 2004-2011 Aspose Pty Ltd. Copyright 2004-2011 Aspose Pty Ltd. 砌体房屋温度伸缩缝的最大间距屋盖或楼盖类别整体式或装配整体式钢筋混凝土结构装配式无檩体系钢筋混凝土结构装配式有檩体系钢筋混凝土结构瓦材屋盖、木屋盖、轻钢屋盖有保温层或隔热层的屋盖、楼盖无保温层或隔热层的屋盖有保温层或隔热层的屋盖、楼盖无保温层或隔热层的屋盖有保温层或隔热层的屋盖、楼盖无保温层或隔热层的屋盖间距( m) 504060507560 100 Evaluation only. Evaluation only. Created with Client Profile . Created with Client Profile . Copyright 2004-