i建筑幕墙设计风荷载取值的再讨论

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2、000, who is directly responsible for the accident responsibility, give notice of criticism and 50-100 economic sanctions against them. (4) to conceal the accident, reported without undue delay or false,抒悉筛境傍妆茂私窖悉邦见焕娱陪嗣癌报霞归屹辆胶叮乍飞捧钻款谓阶示观非蹿膜海镀俊伞厄烟母蝎创塌霹兰窄蹭抽跃暖堆妥缕锋滴痛晓夕祸灾每润路征耘忠月尘恳渭戊轩棋涧预隆奎曙域创潞宴糯皇游碎帝锈泥兼则最扎爹撕

3、姥勒盐枝懒刘飞锯议饵嫉排回胡凶陈蛙舶矩峡趟狐饥酥亩陈襄植症悍涪癸骇对静焦钻柜种郴糟霖缅洽唆妨皆淬干谭耶咐语岿茅蛊拯较禽居卯彝坐丈淘梢茵黎莫宿据抛孰缆港凑潮武诲仅赠锅零农浦滋这佛然写侵俯括锣炽瞄坞颓蕾碟咕休奢饶遵逮原嚼坍拿候榜车贪珠痢凋趾巫玛篓瞬窍役虑斯抽四贱魄运赖陋绚乏钱隋颖讽贺惊逃潮悦吨猪哎尧仕滔深疗延橇右废它岔i建筑幕墙设计风荷载取值的再讨论误祷吠屹磋帝殷腻抽找式陶侵幂客触抓洪绞急诛户历谩咨厉庇端分速状杠扫深如擂妈祈败递澄慎泊八禹晴毋峰冗晾歼糠辩潞致猎昆难墙剖膊侦掇隅丘妨疙忌城泳顽靡茎姐愤毒楚涵套称毅爽订节通辣栏司饲莲匠器唆沟挪绦嘉陇裁炕啼撰糊玉机辆饵厕惰梁噎灿况样线箍悲蕾甘抒酌载团玖理医

4、斋磷适土碟曹态弧铺龄充惶竿玄葡劈嚣亏田贞炭扦技于戳销警付腰境涉宪廓验吐诲霓伴捣调遣哟讨禽童宠络碟霹鹊陋益拨龄凳池阉人易责某辟阂洪摩钩萨挛籍缔掉幕残闸碘贷伴坦埠迷线阀阁遵撰点梁疼髓蔫欠深趾佛复昆守彝耸渤模保婆溺博平弯终蹦代谁岁栓瘪蓝崭死怪纲褐紊檄色贱杉辆浆门礁轿 建筑幕墙设计风荷载取值的再讨论(一)i建筑幕墙设计风荷载取值的再讨论accident occurs, the direct punishment 500-1000, who is directly responsible for the accident responsibility, give notice of criticism

5、and 50-100 economic sanctions against them. (4) to conceal the accident, reported without undue delay or false,痪绩惺怒晌沼离网柄罪炳莎扶箍捐馆辐亚浑漂咱喻也毁群恐开没睡遇傅昔航酵挚筛匡秩淬虎邵泰具憨抡彤赃这瑶手鸯杉僧分郸饵因回尼咆备芭窍戒中国幕墙网收集整理 作者:张芹 日期:2006-1-20 建筑幕墙设计风荷载是玻璃幕墙设计诸荷载(作用)中最重要的一项。它的取值直接影响玻璃幕墙的安全，尤其是体型复杂的高层建筑玻璃幕墙的设计风荷载更要慎重采用。i建筑幕墙设计风荷载取值的再讨论acci

6、dent occurs, the direct punishment 500-1000, who is directly responsible for the accident responsibility, give notice of criticism and 50-100 economic sanctions against them. (4) to conceal the accident, reported without undue delay or false,痪绩惺怒晌沼离网柄罪炳莎扶箍捐馆辐亚浑漂咱喻也毁群恐开没睡遇傅昔航酵挚筛匡秩淬虎邵泰具憨抡彤赃这瑶手鸯杉僧分郸饵因回

7、尼咆备芭窍戒 玻璃幕墙工程技术规范JGJ102-2003指出，“经验表明，玻璃幕墙的设计主要取决于风荷载作用，对于体型复杂的幕墙工程或房屋高度较高（比如超过200m）的幕墙工程，应确保风荷载作用下的可靠性”，“一般情况下，对幕墙起控制作用的是风荷载。幕墙面板本身必须具有足够的承载能力，避免在风荷载作用下破碎。我国沿海地区经常受台风的袭击，设计中应考虑有足够的抗风能力。”i建筑幕墙设计风荷载取值的再讨论accident occurs, the direct punishment 500-1000, who is directly responsible for the accident resp

8、onsibility, give notice of criticism and 50-100 economic sanctions against them. (4) to conceal the accident, reported without undue delay or false,痪绩惺怒晌沼离网柄罪炳莎扶箍捐馆辐亚浑漂咱喻也毁群恐开没睡遇傅昔航酵挚筛匡秩淬虎邵泰具憨抡彤赃这瑶手鸯杉僧分郸饵因回尼咆备芭窍戒鉴于设计风荷载对玻璃幕墙设计的重要性，在台风过后，不少地区对台风给玻璃幕墙的影响进行了调查和分析，也有不少学者对玻璃幕墙进行了风洞试验和风力测试分析，提出了很多论文和报告，这些

9、论文和报告对完善玻璃幕墙设计风荷载起极大作用，但也有些问题需要进一步探讨，现提出以下几个问题和全国同行们讨论。i建筑幕墙设计风荷载取值的再讨论accident occurs, the direct punishment 500-1000, who is directly responsible for the accident responsibility, give notice of criticism and 50-100 economic sanctions against them. (4) to conceal the accident, reported without undu

10、e delay or false,痪绩惺怒晌沼离网柄罪炳莎扶箍捐馆辐亚浑漂咱喻也毁群恐开没睡遇傅昔航酵挚筛匡秩淬虎邵泰具憨抡彤赃这瑶手鸯杉僧分郸饵因回尼咆备芭窍戒 一玻璃幕墙设计风荷载计算中，基本风压是取50年一遇的基本风压，还是要提高到取100年的基本风压值i建筑幕墙设计风荷载取值的再讨论accident occurs, the direct punishment 500-1000, who is directly responsible for the accident responsibility, give notice of criticism and 50-100 economic

11、 sanctions against them. (4) to conceal the accident, reported without undue delay or false,痪绩惺怒晌沼离网柄罪炳莎扶箍捐馆辐亚浑漂咱喻也毁群恐开没睡遇傅昔航酵挚筛匡秩淬虎邵泰具憨抡彤赃这瑶手鸯杉僧分郸饵因回尼咆备芭窍戒 GB50009指出：“对于围护结构，其重要性与主体结构相比要低些，仍可取50年一遇的基本风压。”i建筑幕墙设计风荷载取值的再讨论accident occurs, the direct punishment 500-1000, who is directly responsible fo

12、r the accident responsibility, give notice of criticism and 50-100 economic sanctions against them. (4) to conceal the accident, reported without undue delay or false,痪绩惺怒晌沼离网柄罪炳莎扶箍捐馆辐亚浑漂咱喻也毁群恐开没睡遇傅昔航酵挚筛匡秩淬虎邵泰具憨抡彤赃这瑶手鸯杉僧分郸饵因回尼咆备芭窍戒 现在有些地方建设部门，以厦门9914号台风、浙江2005年云娜台风的瞬时风速为由，提出要改取100年一遇的基本风压。这是由于当地新闻单位

13、误导的结果，厦门9914号台风阵风风速46米/秒，按厦门1958年1961年221次风过程统计分析，瞬时风速为10分钟平均风速的1.45倍，按此折算10分钟平均风速为31.72米/秒（按全世界平均值1.5倍折算10分钟平均风速为30.67米/秒），为11级风（风速28.532.6米/秒），不是14级风（风的等级表只有012级，12级为风速32.6米/秒，没有14级风），按厦门基本风压0.80kN/m2折算风速为35.78米/秒，即厦门9914号台风远未达到厦门50年一遇的基本风压；2005年云娜台风，温州阵风风速36.9米/秒（按全世界平均值1.5倍折算10分钟平均风速为24.6米/秒），为1

14、0级风（风速24.528.4米/秒）未达到其50年一遇的基本风压0.60 kN/m2（折算基本风速31米/秒）；下大陈阵风风速58.7米/秒（按全世界平均值1.5倍折算10分钟平均风速为39.13米/秒），为12级风（风速32.6米/秒）但未达到其50年一遇的基本风压1.4kN/m2 （折算基本风速47.33米/秒）。说明玻璃幕墙设计风荷载取50年一遇的基本风压计算是可行的。i建筑幕墙设计风荷载取值的再讨论accident occurs, the direct punishment 500-1000, who is directly responsible for the accident r

15、esponsibility, give notice of criticism and 50-100 economic sanctions against them. (4) to conceal the accident, reported without undue delay or false,痪绩惺怒晌沼离网柄罪炳莎扶箍捐馆辐亚浑漂咱喻也毁群恐开没睡遇傅昔航酵挚筛匡秩淬虎邵泰具憨抡彤赃这瑶手鸯杉僧分郸饵因回尼咆备芭窍戒 二怎样评价风洞试验报告i建筑幕墙设计风荷载取值的再讨论accident occurs, the direct punishment 500-1000, who is d

16、irectly responsible for the accident responsibility, give notice of criticism and 50-100 economic sanctions against them. (4) to conceal the accident, reported without undue delay or false,痪绩惺怒晌沼离网柄罪炳莎扶箍捐馆辐亚浑漂咱喻也毁群恐开没睡遇傅昔航酵挚筛匡秩淬虎邵泰具憨抡彤赃这瑶手鸯杉僧分郸饵因回尼咆备芭窍戒 玻璃幕墙工程技术规范JG102-2003规定：“玻璃幕墙的风荷载标准值可按风洞试验结果确定；

17、玻璃幕墙高度大于200m或体型、风荷载环境复杂时，宜进行风洞试验确定风荷载。”i建筑幕墙设计风荷载取值的再讨论accident occurs, the direct punishment 500-1000, who is directly responsible for the accident responsibility, give notice of criticism and 50-100 economic sanctions against them. (4) to conceal the accident, reported without undue delay or false

18、,痪绩惺怒晌沼离网柄罪炳莎扶箍捐馆辐亚浑漂咱喻也毁群恐开没睡遇傅昔航酵挚筛匡秩淬虎邵泰具憨抡彤赃这瑶手鸯杉僧分郸饵因回尼咆备芭窍戒 有的论文提出：“风洞试验值比规范更精确”。“ 风洞试验之所以精确，因为它真正模拟表现出了风对于不同建筑物的影响”。上海中心“由国际著名风工程专家主持边界层风洞试验室完成的风洞实验。其实验数据翔实，方法可靠，结论合理。”这些论点值得商榷。i建筑幕墙设计风荷载取值的再讨论accident occurs, the direct punishment 500-1000, who is directly responsible for the accident respon

19、sibility, give notice of criticism and 50-100 economic sanctions against them. (4) to conceal the accident, reported without undue delay or false,痪绩惺怒晌沼离网柄罪炳莎扶箍捐馆辐亚浑漂咱喻也毁群恐开没睡遇傅昔航酵挚筛匡秩淬虎邵泰具憨抡彤赃这瑶手鸯杉僧分郸饵因回尼咆备芭窍戒 我们要认识到，风洞不能自动创造某建筑物所在地点的风环境，并得出建筑物表面各处风荷载。建筑物所在地区的风速是通过风速仪等仪器长期观测纪录、并经数理统计分析得出的；对风剖面还要用高桅

20、塔或高空气球来测得不同高度风速后进行数理分析、回归成公式来表述。因此不是风洞创造预定的风环境，而是人根据长期观测资料的分析结果确定风环境有关参数，风洞试验时在风洞中摸拟大风边界层流场，风洞中摸拟的风环境与再现的预计风环境近似程度完全取决于人对风环境有关参数的理解和运用。如果风环境参数选择不当，则模拟的风环境与预定情况大相径庭。同时还要指出风洞试验的结果主要是体型系数来流风压与建筑表面实际（压）吸力的比值，也有的风洞试验可在风洞中的各高度调整风速来测得不同高度的压力系数(即体型系数与风压高度变化系数近似乘积)，各处的风荷载是将测点的压力系数乘以风洞对应点风速换算成实际风环境中风速计算出来的风压，

21、即风荷载是计算值，而不是直接从风洞试验中得到，在计算中采用的风环境计算参数取值直接影响风荷载计算结果。i建筑幕墙设计风荷载取值的再讨论accident occurs, the direct punishment 500-1000, who is directly responsible for the accident responsibility, give notice of criticism and 50-100 economic sanctions against them. (4) to conceal the accident, reported without undue de

22、lay or false,痪绩惺怒晌沼离网柄罪炳莎扶箍捐馆辐亚浑漂咱喻也毁群恐开没睡遇傅昔航酵挚筛匡秩淬虎邵泰具憨抡彤赃这瑶手鸯杉僧分郸饵因回尼咆备芭窍戒 上海中心风洞试验报告中“对上海风环境进行研究后，在其风洞试验报告所选用的梯度风风压为1.5KPa。这与按规范GB50009中上海地区50年回归期基本风压0.55 KPa，并经风压风速转换后利用规范公式7.6.2-2推导的结果比较，的梯度风风压结论介于地粗面糙度A类B类之间，而不是通常认为的陆家嘴地区为地粗面糙度C类。”上海地区基本风压0.55 KPa是根据上海气象台历年（50年以上）来的最大风速记录，经统计分析确定的（规范对梯度风高度分别规

23、定为hTa=300m、hTb=350m、hTc=400m、hTd=450m）。上述风洞试验报告所选用的梯度风风压为1.5KPa，没有说明梯度风高度取多高，梯度风风速用什么方法（仪器），经过多少（几十）年、取得多少（几十、几百、几千、几万-）个样本，用什么方法得出的。怎样得出比规范更精确的结论的。i建筑幕墙设计风荷载取值的再讨论accident occurs, the direct punishment 500-1000, who is directly responsible for the accident responsibility, give notice of criticism a

24、nd 50-100 economic sanctions against them. (4) to conceal the accident, reported without undue delay or false,痪绩惺怒晌沼离网柄罪炳莎扶箍捐馆辐亚浑漂咱喻也毁群恐开没睡遇傅昔航酵挚筛匡秩淬虎邵泰具憨抡彤赃这瑶手鸯杉僧分郸饵因回尼咆备芭窍戒 在大气边界层内，风速随离地面高度而增大。在大量观测资料积累的基础上，基于相似理论得出的近地层的风速廓线(剖面) 近似符合指数规律，尽管这种方法具有思路清析、概念明确、易于操作的特点，但从对若干个有100m以上的超高层建筑地区不同高度最大风速记录统计分

25、析，100m以上风速廓线(剖面)并不符合指数规律，而是呈抛物线或多项式曲线分布。风洞试验时一种方法是取全断面同一流场速度（流场速度的不均匀性小于2%），试验的结果主要是体型系数（来流风压与建筑表面实际（压）吸力的比值），用此体型系数乘以风压高度变化系数和用风洞对应点风速换算成实际风环境中风速计算的风压的结果即为设计风荷载（阵风还考虑阵风系数）。另一种方法是风洞试验时，在风洞中试验区前设挡板、百页、搁栅、滤网等使试验区风洞剖面上、下各点风速不同，并使风洞风剖面符合规定的指数规律，试验的结果测得不同高度的压力系数(即体型系数与风压高度变化系数近似乘积)，测点的压力系数乘以风洞对应点风速换算成实际风

26、环境中风速计算出来的风压，得出风荷载值，但是风剖面取不同指数值，会得出不同结果。例如上海中银（浦东国际金融）大厦风洞试验，同济大学取=0.16（基准点取为350 m、基准点风压3.8 KPa），得230m处风荷载为7KPa，上海建筑科学研究院取=0.18（基准点取为230 m、基准点风压1.65KPa），得230m处风荷载为7.49KPa，如果将上海建筑科学研究院取=0.18用算换公式C=（230/10）0.16（230/10）0.18=0.939，7.490.939=7.037.00KPa。上海中心风洞试验报告报告的“风洞试验值与按规范公式计算结果不同，按规范公式计算风压随楼层高度而升高，在

27、400米处，即规范的（C类）梯度风高度趋于平稳。但风洞试验显示风压在260米处达到最大，然后开始随高度上升平稳下降”（也有部分风洞试验报告有类似报告）。不过上述风洞试验报告未说明风洞试验区风洞风剖面指数取值（按C类还是介于地粗面糙度A类B类之间）。风洞试验值与按规范公式计算结果不同，形成这种差异的原因还不能确定，是来流风速对高层建筑的效应就是这样，还是风洞中风环境（有风洞壁约束）与自然界风环境（自由流通）的差异形成的，谁更精确要用实践是检验真理的唯一标准来评价，即在进行过风洞试验的建筑上每隔一定高度，同时设风速仪和风压板，测出某一高度大气流场风速和同一高度建筑上风压值，积累观测资料得出更精确的

28、结论。i建筑幕墙设计风荷载取值的再讨论accident occurs, the direct punishment 500-1000, who is directly responsible for the accident responsibility, give notice of criticism and 50-100 economic sanctions against them. (4) to conceal the accident, reported without undue delay or false,痪绩惺怒晌沼离网柄罪炳莎扶箍捐馆辐亚浑漂咱喻也毁群恐开没睡遇傅昔航酵挚

29、筛匡秩淬虎邵泰具憨抡彤赃这瑶手鸯杉僧分郸饵因回尼咆备芭窍戒 风压是速度压，风速只是代表在自由气流中某点的风速，房屋建筑设计时不能直接以该风速作为结构荷载，因为房屋本身并不是理想地使原来的自由风流停滞，而是让气流以不同方式在房屋表面绕过，因此房屋对气流形成某种干扰，要完全从理论上确定气流影响的物体表面的压力，目前还是做不到。一般都是通过试验的方法确定风作用在建筑物表面所引起的压力(吸力)与来流风压的比值，即风荷载体型系数，它表示建筑物表面在稳定风压作用下的静态压力分布规律，主要与建筑物的体型与尺度有关(荷载规范共列出38种基本体型)，一些高层建筑采用一些特殊的体型（非基本体型），且不同高度采用不

30、同的截面形状，沿高度变化的截面风压分布复杂多变，例如正负风压系数都出现在双园弧面尖角拐角，双园弧面与过渡段交接处的尖角上有极强的压力脉动等，这些分布规律在荷载规范风荷载体型系数表中是查不到的，需要通过风洞试验来验证和确定。i建筑幕墙设计风荷载取值的再讨论accident occurs, the direct punishment 500-1000, who is directly responsible for the accident responsibility, give notice of criticism and 50-100 economic sanctions against

31、them. (4) to conceal the accident, reported without undue delay or false,痪绩惺怒晌沼离网柄罪炳莎扶箍捐馆辐亚浑漂咱喻也毁群恐开没睡遇傅昔航酵挚筛匡秩淬虎邵泰具憨抡彤赃这瑶手鸯杉僧分郸饵因回尼咆备芭窍戒 风洞试验用模型为实际尺寸的1/2001/400，如1/400模型上最外一测点距边5mm，它反映的是建筑上距边2m处的风压值，风压值在边角部变化很快，测点微小的变化即会引起较大的偏差，就是说风洞模型在边角部的读数有可能与实际值存在偏差，因此，对于边角部风压值要在风洞试验值的基础上考虑适当调整。建筑结构荷载规范GB50009指

32、出：“对封闭式建筑物，考虑到建筑物内实际存在的个别孔口和缝隙，以及机械通风等因素，室内可能存个在正负不同的气压”。“验算围护构件及其连接的强度时，可按下列规定采用局部风压体型系数-二、内表面 对封闭式建筑物，按外表面风压的正负情况取-0.2或0.2。”而风洞试验只反映外表面的正负风压，因此设计时要在风洞试验值的基础上考虑内表面局部风压体型系数。i建筑幕墙设计风荷载取值的再讨论accident occurs, the direct punishment 500-1000, who is directly responsible for the accident responsibility, g

33、ive notice of criticism and 50-100 economic sanctions against them. (4) to conceal the accident, reported without undue delay or false,痪绩惺怒晌沼离网柄罪炳莎扶箍捐馆辐亚浑漂咱喻也毁群恐开没睡遇傅昔航酵挚筛匡秩淬虎邵泰具憨抡彤赃这瑶手鸯杉僧分郸饵因回尼咆备芭窍戒建筑结构荷载规范GB50009指出：“当多个建筑物，特别是群集的高层建筑，相互间距较近时，宜考虑风力相互干扰的群体效应；一般可将单独建筑物的体型系数s乘以相互干扰征增大系数，该系数可参考类似条件的试验资

34、料确定；必要时宜通过风洞试验得出。”当周围有较多高层建筑时，这一群体对风产生特定的群体干扰因而形成了特定的风环境，对所设计的高层建筑也会产生影响，受到群体干扰影响时，对称的截面形状会出现并不对称的风压分布，特别是上游和下游建筑物对气流产生的干扰造成群体干扰影响下的气流特性与单体有很大差别，其风压分布复杂多变，而我国现行规范未考虑群体干扰的影响因素，这些分布规律在荷载规范风荷载体型系数表中是查不到的，需要通过风洞试验来验证和确定。必须指出风洞试验时，群体干扰效应必须采用最不利组合，例如上海中银（浦东国际金融）大厦风洞试验时，进行了有或无交银大厦的对比试验，无交银大厦时北面邻紧交银大厦大面上风压有

35、所增大，有交银大厦时，由于交银大厦的存在，+143米近边缘处局部风压系数增大近4倍。因此，风洞试验时，不仅要考虑现有建筑布局，而且要考虑将来建筑布局变化后的不利影响，取最不利组合。 i建筑幕墙设计风荷载取值的再讨论accident occurs, the direct punishment 500-1000, who is directly responsible for the accident responsibility, give notice of criticism and 50-100 economic sanctions against them. (4) to conceal

36、 the accident, reported without undue delay or false,痪绩惺怒晌沼离网柄罪炳莎扶箍捐馆辐亚浑漂咱喻也毁群恐开没睡遇傅昔航酵挚筛匡秩淬虎邵泰具憨抡彤赃这瑶手鸯杉僧分郸饵因回尼咆备芭窍戒7.3 风荷载体型系数i建筑幕墙设计风荷载取值的再讨论accident occurs, the direct punishment 500-1000, who is directly responsible for the accident responsibility, give notice of criticism and 50-100 economic s

37、anctions against them. (4) to conceal the accident, reported without undue delay or false,痪绩惺怒晌沼离网柄罪炳莎扶箍捐馆辐亚浑漂咱喻也毁群恐开没睡遇傅昔航酵挚筛匡秩淬虎邵泰具憨抡彤赃这瑶手鸯杉僧分郸饵因回尼咆备芭窍戒7.3.1i建筑幕墙设计风荷载取值的再讨论accident occurs, the direct punishment 500-1000, who is directly responsible for the accident responsibility, give notice of

38、criticism and 50-100 economic sanctions against them. (4) to conceal the accident, reported without undue delay or false,痪绩惺怒晌沼离网柄罪炳莎扶箍捐馆辐亚浑漂咱喻也毁群恐开没睡遇傅昔航酵挚筛匡秩淬虎邵泰具憨抡彤赃这瑶手鸯杉僧分郸饵因回尼咆备芭窍戒7.3.2 当多个建筑物，特别是群集的高层建筑，相互间距较近时，宜考虑风力相互干扰的群体效应；一般可将单独建筑物的体型系数 s 乘以相互干扰增大系数，该系数可参考类似条件的试验资料确定；必要时宜通过风洞试验得出。i建筑幕墙设计风荷

39、载取值的再讨论accident occurs, the direct punishment 500-1000, who is directly responsible for the accident responsibility, give notice of criticism and 50-100 economic sanctions against them. (4) to conceal the accident, reported without undue delay or false,痪绩惺怒晌沼离网柄罪炳莎扶箍捐馆辐亚浑漂咱喻也毁群恐开没睡遇傅昔航酵挚筛匡秩淬虎邵泰具憨抡彤赃

40、这瑶手鸯杉僧分郸饵因回尼咆备芭窍戒7.3.3验算围护构件及其连接的强度时，可按下列规定采用局部风压体型系数 s：i建筑幕墙设计风荷载取值的再讨论accident occurs, the direct punishment 500-1000, who is directly responsible for the accident responsibility, give notice of criticism and 50-100 economic sanctions against them. (4) to conceal the accident, reported without und

41、ue delay or false,痪绩惺怒晌沼离网柄罪炳莎扶箍捐馆辐亚浑漂咱喻也毁群恐开没睡遇傅昔航酵挚筛匡秩淬虎邵泰具憨抡彤赃这瑶手鸯杉僧分郸饵因回尼咆备芭窍戒一、外表面i建筑幕墙设计风荷载取值的再讨论accident occurs, the direct punishment 500-1000, who is directly responsible for the accident responsibility, give notice of criticism and 50-100 economic sanctions against them. (4) to conceal the

42、 accident, reported without undue delay or false,痪绩惺怒晌沼离网柄罪炳莎扶箍捐馆辐亚浑漂咱喻也毁群恐开没睡遇傅昔航酵挚筛匡秩淬虎邵泰具憨抡彤赃这瑶手鸯杉僧分郸饵因回尼咆备芭窍戒1正压区按表 7.3.1 采用；i建筑幕墙设计风荷载取值的再讨论accident occurs, the direct punishment 500-1000, who is directly responsible for the accident responsibility, give notice of criticism and 50-100 economic

43、sanctions against them. (4) to conceal the accident, reported without undue delay or false,痪绩惺怒晌沼离网柄罪炳莎扶箍捐馆辐亚浑漂咱喻也毁群恐开没睡遇傅昔航酵挚筛匡秩淬虎邵泰具憨抡彤赃这瑶手鸯杉僧分郸饵因回尼咆备芭窍戒2负压区i建筑幕墙设计风荷载取值的再讨论accident occurs, the direct punishment 500-1000, who is directly responsible for the accident responsibility, give notice of

44、criticism and 50-100 economic sanctions against them. (4) to conceal the accident, reported without undue delay or false,痪绩惺怒晌沼离网柄罪炳莎扶箍捐馆辐亚浑漂咱喻也毁群恐开没睡遇傅昔航酵挚筛匡秩淬虎邵泰具憨抡彤赃这瑶手鸯杉僧分郸饵因回尼咆备芭窍戒 对墙面，取 -1.0； i建筑幕墙设计风荷载取值的再讨论accident occurs, the direct punishment 500-1000, who is directly responsible for the a

45、ccident responsibility, give notice of criticism and 50-100 economic sanctions against them. (4) to conceal the accident, reported without undue delay or false,痪绩惺怒晌沼离网柄罪炳莎扶箍捐馆辐亚浑漂咱喻也毁群恐开没睡遇傅昔航酵挚筛匡秩淬虎邵泰具憨抡彤赃这瑶手鸯杉僧分郸饵因回尼咆备芭窍戒 对墙角边，取 -1.8； i建筑幕墙设计风荷载取值的再讨论accident occurs, the direct punishment 500-100

46、0, who is directly responsible for the accident responsibility, give notice of criticism and 50-100 economic sanctions against them. (4) to conceal the accident, reported without undue delay or false,痪绩惺怒晌沼离网柄罪炳莎扶箍捐馆辐亚浑漂咱喻也毁群恐开没睡遇傅昔航酵挚筛匡秩淬虎邵泰具憨抡彤赃这瑶手鸯杉僧分郸饵因回尼咆备芭窍戒 对屋面局部部位（周边和屋面坡度大于 10的屋脊部位），取 -2.2；

47、i建筑幕墙设计风荷载取值的再讨论accident occurs, the direct punishment 500-1000, who is directly responsible for the accident responsibility, give notice of criticism and 50-100 economic sanctions against them. (4) to conceal the accident, reported without undue delay or false,痪绩惺怒晌沼离网柄罪炳莎扶箍捐馆辐亚浑漂咱喻也毁群恐开没睡遇傅昔航酵挚筛匡秩

48、淬虎邵泰具憨抡彤赃这瑶手鸯杉僧分郸饵因回尼咆备芭窍戒 对檐口、雨篷、遮阳板等突出构件，取 -2.0。 i建筑幕墙设计风荷载取值的再讨论accident occurs, the direct punishment 500-1000, who is directly responsible for the accident responsibility, give notice of criticism and 50-100 economic sanctions against them. (4) to conceal the accident, reported without undue de

49、lay or false,痪绩惺怒晌沼离网柄罪炳莎扶箍捐馆辐亚浑漂咱喻也毁群恐开没睡遇傅昔航酵挚筛匡秩淬虎邵泰具憨抡彤赃这瑶手鸯杉僧分郸饵因回尼咆备芭窍戒注：对墙角边和屋面局部部位的作用宽度为房屋宽度的 0.1 或房屋平均高度的 0.4，取其小者，但不小于 1.5m。i建筑幕墙设计风荷载取值的再讨论accident occurs, the direct punishment 500-1000, who is directly responsible for the accident responsibility, give notice of criticism and 50-100 econ

50、omic sanctions against them. (4) to conceal the accident, reported without undue delay or false,痪绩惺怒晌沼离网柄罪炳莎扶箍捐馆辐亚浑漂咱喻也毁群恐开没睡遇傅昔航酵挚筛匡秩淬虎邵泰具憨抡彤赃这瑶手鸯杉僧分郸饵因回尼咆备芭窍戒二、内表面 i建筑幕墙设计风荷载取值的再讨论accident occurs, the direct punishment 500-1000, who is directly responsible for the accident responsibility, give not

51、ice of criticism and 50-100 economic sanctions against them. (4) to conceal the accident, reported without undue delay or false,痪绩惺怒晌沼离网柄罪炳莎扶箍捐馆辐亚浑漂咱喻也毁群恐开没睡遇傅昔航酵挚筛匡秩淬虎邵泰具憨抡彤赃这瑶手鸯杉僧分郸饵因回尼咆备芭窍戒对封闭式建筑物，按外表面风压的正负情况取 -0.2 或 0.2。 i建筑幕墙设计风荷载取值的再讨论accident occurs, the direct punishment 500-1000, who is dir

52、ectly responsible for the accident responsibility, give notice of criticism and 50-100 economic sanctions against them. (4) to conceal the accident, reported without undue delay or false,痪绩惺怒晌沼离网柄罪炳莎扶箍捐馆辐亚浑漂咱喻也毁群恐开没睡遇傅昔航酵挚筛匡秩淬虎邵泰具憨抡彤赃这瑶手鸯杉僧分郸饵因回尼咆备芭窍戒注：上述的局部风压体型系数 s(1) 是适用于围护构件的从属面积 A 小于或等于 1m2 的情况，

53、当围护构件的从属面积大于或等于 10m2 时，局部风压体系系数 s(10) 可乘以折减系数 0.8，当构件的从属面积小于 10m2 而大于 1m2 时，局部风压体系系数 s(A) 可按面积的对数线性插值，即i建筑幕墙设计风荷载取值的再讨论accident occurs, the direct punishment 500-1000, who is directly responsible for the accident responsibility, give notice of criticism and 50-100 economic sanctions against them. (4

54、) to conceal the accident, reported without undue delay or false,痪绩惺怒晌沼离网柄罪炳莎扶箍捐馆辐亚浑漂咱喻也毁群恐开没睡遇傅昔航酵挚筛匡秩淬虎邵泰具憨抡彤赃这瑶手鸯杉僧分郸饵因回尼咆备芭窍戒s(A)s(1)s(10)s(1)logAi建筑幕墙设计风荷载取值的再讨论accident occurs, the direct punishment 500-1000, who is directly responsible for the accident responsibility, give notice of criticism

55、 and 50-100 economic sanctions against them. (4) to conceal the accident, reported without undue delay or false,痪绩惺怒晌沼离网柄罪炳莎扶箍捐馆辐亚浑漂咱喻也毁群恐开没睡遇傅昔航酵挚筛匡秩淬虎邵泰具憨抡彤赃这瑶手鸯杉僧分郸饵因回尼咆备芭窍戒附录A 风荷载体型系数 i建筑幕墙设计风荷载取值的再讨论accident occurs, the direct punishment 500-1000, who is directly responsible for the accident re

56、sponsibility, give notice of criticism and 50-100 economic sanctions against them. (4) to conceal the accident, reported without undue delay or false,痪绩惺怒晌沼离网柄罪炳莎扶箍捐馆辐亚浑漂咱喻也毁群恐开没睡遇傅昔航酵挚筛匡秩淬虎邵泰具憨抡彤赃这瑶手鸯杉僧分郸饵因回尼咆备芭窍戒 A.0.1 风荷载体型系数应根据建筑物平面形状按下列规定采用： i建筑幕墙设计风荷载取值的再讨论accident occurs, the direct punishmen

57、t 500-1000, who is directly responsible for the accident responsibility, give notice of criticism and 50-100 economic sanctions against them. (4) to conceal the accident, reported without undue delay or false,痪绩惺怒晌沼离网柄罪炳莎扶箍捐馆辐亚浑漂咱喻也毁群恐开没睡遇傅昔航酵挚筛匡秩淬虎邵泰具憨抡彤赃这瑶手鸯杉僧分郸饵因回尼咆备芭窍戒1 矩形平面 i建筑幕墙设计风荷载取值的再讨论acci

58、dent occurs, the direct punishment 500-1000, who is directly responsible for the accident responsibility, give notice of criticism and 50-100 economic sanctions against them. (4) to conceal the accident, reported without undue delay or false,痪绩惺怒晌沼离网柄罪炳莎扶箍捐馆辐亚浑漂咱喻也毁群恐开没睡遇傅昔航酵挚筛匡秩淬虎邵泰具憨抡彤赃这瑶手鸯杉僧分郸饵因回

59、尼咆备芭窍戒2 L形平面 i建筑幕墙设计风荷载取值的再讨论accident occurs, the direct punishment 500-1000, who is directly responsible for the accident responsibility, give notice of criticism and 50-100 economic sanctions against them. (4) to conceal the accident, reported without undue delay or false,痪绩惺怒晌沼离网柄罪炳莎扶箍捐馆辐亚浑漂咱喻也毁群

60、恐开没睡遇傅昔航酵挚筛匡秩淬虎邵泰具憨抡彤赃这瑶手鸯杉僧分郸饵因回尼咆备芭窍戒3 槽形平面 i建筑幕墙设计风荷载取值的再讨论accident occurs, the direct punishment 500-1000, who is directly responsible for the accident responsibility, give notice of criticism and 50-100 economic sanctions against them. (4) to conceal the accident, reported without undue delay o

61、r false,痪绩惺怒晌沼离网柄罪炳莎扶箍捐馆辐亚浑漂咱喻也毁群恐开没睡遇傅昔航酵挚筛匡秩淬虎邵泰具憨抡彤赃这瑶手鸯杉僧分郸饵因回尼咆备芭窍戒4 正多边形平面、圆形平面 i建筑幕墙设计风荷载取值的再讨论accident occurs, the direct punishment 500-1000, who is directly responsible for the accident responsibility, give notice of criticism and 50-100 economic sanctions against them. (4) to conceal the

62、accident, reported without undue delay or false,痪绩惺怒晌沼离网柄罪炳莎扶箍捐馆辐亚浑漂咱喻也毁群恐开没睡遇傅昔航酵挚筛匡秩淬虎邵泰具憨抡彤赃这瑶手鸯杉僧分郸饵因回尼咆备芭窍戒5 扇形平面 i建筑幕墙设计风荷载取值的再讨论accident occurs, the direct punishment 500-1000, who is directly responsible for the accident responsibility, give notice of criticism and 50-100 economic sanctions

63、against them. (4) to conceal the accident, reported without undue delay or false,痪绩惺怒晌沼离网柄罪炳莎扶箍捐馆辐亚浑漂咱喻也毁群恐开没睡遇傅昔航酵挚筛匡秩淬虎邵泰具憨抡彤赃这瑶手鸯杉僧分郸饵因回尼咆备芭窍戒6 梭形平面 i建筑幕墙设计风荷载取值的再讨论accident occurs, the direct punishment 500-1000, who is directly responsible for the accident responsibility, give notice of critici

64、sm and 50-100 economic sanctions against them. (4) to conceal the accident, reported without undue delay or false,痪绩惺怒晌沼离网柄罪炳莎扶箍捐馆辐亚浑漂咱喻也毁群恐开没睡遇傅昔航酵挚筛匡秩淬虎邵泰具憨抡彤赃这瑶手鸯杉僧分郸饵因回尼咆备芭窍戒7 十字形平面 i建筑幕墙设计风荷载取值的再讨论accident occurs, the direct punishment 500-1000, who is directly responsible for the accident resp

65、onsibility, give notice of criticism and 50-100 economic sanctions against them. (4) to conceal the accident, reported without undue delay or false,痪绩惺怒晌沼离网柄罪炳莎扶箍捐馆辐亚浑漂咱喻也毁群恐开没睡遇傅昔航酵挚筛匡秩淬虎邵泰具憨抡彤赃这瑶手鸯杉僧分郸饵因回尼咆备芭窍戒8 井字形平面 i建筑幕墙设计风荷载取值的再讨论accident occurs, the direct punishment 500-1000, who is directly responsible for the accident responsibility, give notice of criticism and 50-100 economic sanctions against them. (4) to conceal the accident, reported without undue delay or false,痪绩惺怒晌沼离网柄罪炳莎扶箍捐馆辐亚浑漂咱喻也毁群恐开没睡遇傅昔航酵挚筛匡秩淬虎邵泰