整理索网幕墙及采光顶计算Word格式.docx

1、 Design Criteria2.1. 执行规范 Design Codes AdoptedGB 50009-2001 建筑结构荷载规范Load code for the design of building structuresGB 50011-2001 建筑抗震设计规范Code for seismic design of buildingGB 50017-2003 钢结构设计规范Code for design of steel structuresGB 50010-2002 混凝土结构设计规范Code for design of concrete structuresGB 50018-20

2、02 冷弯薄壁型钢结构技术规范Technical code of cold-formed thin-wall steel structuresJGJ 102-2003 玻璃幕墙工程技术规范Technical code for glass curtain wall engineeringJGJ 113-2003 建筑玻璃应用技术规程Technical specification for application of architectural glassGB/T99631998 钢化玻璃 Toughened GlassGB9962-1999 夹层玻璃 Laminated GlassGB/T119

3、442002 中空玻璃Insulating GlassGB/T18915.22002 镀膜玻璃 第二部分 低辐射镀膜玻璃Filming Glass Part 2 Low Radiation Filming Glass2.2. 建筑物参数 General Parameters建筑Architecture中青旅大厦CYTS PLAZA抗震设防烈度seismic fortification intensity8水平地震影响系数最大值Maximum value of horizontal earthquake influence coefficient0.16基本风压值（kN/m2）Reference

4、 wind pressure0.50（100年）地面粗糙度类别terrain roughnessD基本雪压值（kN/m2）Reference snow pressure0.45（100年）雪荷载准永久值系数分区Subarea of snow load permanent coefficientII2.3. 结构限值 Deflection Limits根据玻璃幕墙工程技术规范JGJ102-2003以及招标文件要求，结构变形限值要求为：Accordance to JGJ102-2003Technical code for glass curtain wall engineeringand the

5、requirements of bid documents, the structure deflection limits is required as follows:网状钢缆：跨度/55或260mm以较小者为准Steel cable：span/55 or 260mm, taking smaller one铝框架构件：跨度/240或20mm以较小者为准Member of aluminum frame：span/240 or 20mm, taking smaller one单片玻璃：跨度/60或25mm以较小者为准One-piece glass：span/60or 25mm, taking

6、smaller one中空玻璃单元：跨度/90或25mm，以较小者为准Insulating glass cell：span/90or 25mm, taking smaller one网状钢缆的周边框架部件在风荷载或地震荷载作用下：跨度/250Main frame of cable net wall under wind or earthquake：span/250屋顶桁架和檩条在自重荷载下：跨度/360Roof joist and purline under dead weight load：span /36屋顶桁架和檩条在雪/风/地震荷载下：Roof joist and purline un

7、der snow/wind/earthquake load：span /2502.4. 荷载（Loading）2.4.1. 自重荷载（DL） Dead Load根据玻璃幕墙工程技术规范JGJ102-2003条目5.3.1规定：According to Technical Code for Glass curtain Wall Engineering JGJ102-2003,commentary 5.3.1，the density is ： 玻璃（Glass） 25.6KN/m3铝合金（Aluminum alloy） 28KN/m3钢材（Steel） 78.5KN/m3索网幕墙采用12+1.52

8、PVB+12mm钢化夹胶玻璃，Gk=0.6144KN/m2，Two panes 12 mm laminated tempered safety glass with PVB-interlayer（1.52mm）:Gk=0.6144KN/m2，计算索网结构时，考虑附件重量时，Gk=0.737KN/m2，（1.2系数），To calculate cable net facade, the weight is : Gk=0.737KN/m2，（1.2）采光顶采用10（Low-E）+12A+8+1.52PVB+8mm中空夹胶玻璃，Gk=0.6656KN/m2，The glass roof consis

9、t of 10mm tempered safety glass and two panes 8mm laminated tempered safety glass with PVB-interlayer（1.52mm）, the weight is :Gk=0.6656KN/m2， 计算桁架结构时，考虑附件重量时，Gk=0.732KN/m2，（1.1系数），To calculate joist structure, the weight is : Gk=0.732KN/m2，（1.1）2.4.2. 风荷载（WL）Wind Load根据中国规范：GB50009-2001建筑结构荷载规范，按照下列

10、计算式计算风荷载：According to Chinese code：GB50009-2001Load code for the design of building structures,wind load shall be calculated in accordance with following formula： Wk=gz zsWo式中：Where：Wk 风荷载标准值 standard value of wind load gz 阵风系数 gustiness factor z 风压高度变化系数 variation factor of wind pressure height s 风

11、荷载体型系数 shape coefficientWo 基本风压 （单位: KNm2） reference wind pressure（unit: KNm2）注: 根据玻璃幕墙工程技术规范：风荷载标准值不应小于1.0KNm2.Note: According to Technical Code for Glass curtain Wall Engineering JGJ102-2003, the standard value of wind load should be no less than 1.0KNm2.首先，本建筑按D类地面粗糙度考虑。First，this building should

12、 be considered in accordance with category D terrain roughness.阵风系数 gz:Gustiness factor gz:我们可以根据不同的高度Z对附表进行线性插值计算阵风系数。该表摘自荷载规范GB50009-2001表7.5.1。We may perform linear interpolation for attached list to calculate gustiness factor in accordance with different heights Z. This table abstracts from tabl

13、e 7.5.1 in GB50009-2001 Load Code.根据招标文件要求，玻璃验算时阵风系数不应小于2.25。In accordance with the requirements of bid documents, the gustiness factor should be no less than 2.25 when checking computations is conducted on glass.表7.5.1 阵风系数 gz （Gustiness factor gz）:距离地面高度或海拔高度 （单位: 米）Height away from the ground or

14、height above sea level（unit: m）地面粗糙度terrain roughnessA B C D 51.691.882.303.21101.631.782.102.76151.601.721.992.54201.581.922.39301.541.641.832.21401.521.772.09501.511.732.01601.491.561.94701.481.661.89801.471.531.85风压高度变化系数 z :Variation factor of wind pressure height z :我们可以根据不同的高度Z对附表进行线性插值计算阵风系数

15、。该表摘自荷载规范GB50009-2001表7.2.1.We may perform linear interpolation for attached list to calculate gustiness factor in accordance with different heights Z. This table abstracts from table 7.2.1 in GB50009-2001 Load Code.表7.2.1 风压高度变化系数（variation factor of wind pressure height）z :或海拔高度（单位:or height above

16、 sea level（unit:风压高度变化系数1.171.000.740.621.381.141.250.841.801.421.130.732.031.672.121.350.932.201.861.451.022.271.951.11风荷载体型系数: sShape coefficient of wind load:根据建筑结构荷载规范GB50009-2001第7.3章之规定：In accordance with the stipulation of chapter 7.3 in GB50009-2001：1封闭建筑的内表面风荷载体型系数应取为 :0.2The somatotype coe

17、fficient of wind load in the inner surface of blocking architecture should be taken as:2外表面的风荷载体型系数应按下式取值: The somatotype coefficient of wind load in the external surface should be taken in accordance with following formula:（a） 正压区:Positive pressure zone按照建筑结构荷载规范GB50009-2001表7.3.1采用,对立面幕墙我们取为：+0.8A

18、dopt in accordance with table 7.3.1 in GB50009-2001, We choose +0.8 for vertical plane curtain wall.（b） 负风压: Negative wind pressure按照建筑结构荷载规范GB50009-2001第7.3.3节采用对立面幕墙取为-1.0对屋面的局部部位（周边）取为-2.2Adopt in accordance with table 7.3.3 in GB50009-2001,Take -1.0 for vertical plane curtain wallTake -2.2 for r

19、oofs local position（perimeter）因此，立面索网幕墙体型系数为-1.2和+1.0，采光顶中间部分取为-0.8，周边部位取为-2.4。Therefore, the somatotype coefficients for vertical plane string net curtain wall are -1.2 and +1.0, respectively. -0.8 somatotype coefficients in the middle section of glass roof is taken, and -2.4 somatotype coefficient

20、s in the peripheral position of glass roof is taken.基本风压: Wo对于北京市，100年一遇基本风压： Wo=0.50KNm2 。Wo=0.50KNm2（for a 100 year return period） in Beijing.注：Note：1.根据招标文件及荷载规范要求，索网幕墙最大负风压值应分布于幕墙全高，这样幕墙最大变形可能不出现在标高最高的位置上。1. In accordance with the requirements of bid documents and load code,the maximum negative

21、wind pressure for string net curtain wall should be distributed in the overall height of curtain wall. Thus, the maximum deformation of curtain wall may not occur in the position with the highest elevation.2.墙面必须能够抵抗下列荷载并保持性能：75%的设计风荷载加在两个横向钢框架梁之间任意1/4面积上，同时25%的设计风荷载加在墙的其他面积上。2. Wall space must be able to r