木结构

[中文适用范围]： 本文件提供的设计方法解决了居住者行走引起的振动，涵盖了以下木地板系统：a) 轻型框架地板，木托梁间距不超过 610 毫米，带有一层结构木质底层地板，并通过机械紧固件或粘合剂与托梁连接。无水泥砂浆（顶层）和天花板的裸露轻型框架地板的面积密度不大于 25 千克/平方米。图 1 显示了这种轻型框架地板。b) 用交叉层压木材 (CLT) 等大宗木板建造的大宗木地板。本文件包含三个要素：a) 使用基本固有频率和 1 kN 静态点载荷挠度作为设计参数的木地板基准振动适用性设计标准，包括两种设计标准，耦合标准和解耦标准；b) 设计参数计算方程；c) 地板部件物理和机械性能设计值指南。该设计方法基于楼板体系具有单跨度和简单支撑条件的假设。 [外文原描述]： The design method provided in this document addresses vibration induced by walking action of occupants and covers the following timber floor systems: a) Light frame floors built with timber joists spaced at a distance of no more than 610 mm with a layer of structural wood-based subfloor that is connected to the joists using mechanical fasteners or adhesive. The area density of a bare light frame floors without a screed (topping) and ceiling is not greater than 25 kg/m 2 . Figure 1 shows such a light frame floor. b) Mass timber floors built with mass timber panels such as cross laminated timber (CLT). This document consists of three elements: a) a baseline vibrational serviceability design criterion for timber floors using fundamental natural frequency and 1 kN static point load deflection as the design parameters including two types of design criteria, coupled and decoupled criteria; b) equations for calculating the design parameters; c) guidelines for the design values of the physical and mechanical properties of floor components. The design method is based on the assumption that the floor system has a single span and simple support conditions.