贡金鑫李霆杨振斌杨蔚彪 束伟农陈凯范重范峰 林政顾明唐意韩纪升 本规范主要审查人员：程懋望汪大绥徐永基 陈基发 薛桁任庆英娄宇袁金西 左江吴一红莫庸郑文忠 方小丹章一萍樊小卿 7
贡金鑫李霆杨振斌杨蔚彪 束伟农陈凯范重范峰 林政顾明唐意韩纪升 本规范主要审查人员:程攒莹汪大绥徐永基陈基发 薛椅任庆英委宇袁金西 左江吴一红莫庸郑文忠 方小丹章一萍樊小卿 7 www.weboos.com
目 次 1总则 2术语和符号… 2.1术语****4*…2 2.2符号** 5 3荷载分类和荷载组合… 8 3.1荷载分类和荷载代表值… 8 3.2荷载组合…………9 4永久荷载…… 13 5楼面和屋面活荷载…14 5.1民用建筑楼面均布活荷载 14 5.2工业建筑楼面活荷载… 17 5.3屋面活荷载 18 5.4屋面积灰荷载*…… 19 5.5施工和检修荷载及栏杆荷载… 21 5.6动力系数…… 21 6吊车荷载…… …23 6.1吊车竖向和水平荷载…23 6.2多台吊车的组合…24 6.3吊车荷载的动力系数… 24 6.4吊车荷载的组合值、额遇值及准永久值…24 7雪荷载…… …26 7.1雪荷载标准值及基本雪压 …26 72屋面积雪分布系数………26 8风荷载* 30 8.1风荷载标准值及基本风压 30 9
目次 1 总则 2 术语和符号…...... ••• .......…..................................…. 2 2.1 术语…...... ••..•• •••.••••.••••••••• .....…......................... 2 2. 2 符号........….........…........ ..…... •••..• ..............……. 5 3 荷载分类和荷载组合.......................….................….. 8 3.1 荷载分类和荷载代表值……….......................….......... 8 3.2 荷载组合…... ••• •••••. ••• ••• ...........…..............…........ 9 4 永久荷载........….................................…................ 13 5 楼面和屋面活荷载…................................................ 14 5.1 民用建筑楼面均布活荷载 •••••••••••...•••....•....••••..•.••... 14 5.2 工业建筑楼面活荷载........…...........................……. 17 5.3 屋面活荷载......................................................... 18 5.4 屋面积灰荷载.........…......................................…. 19 5.5 施工和检修荷载及栏杆荷载…........…......................... 21 5.6 动力系数 …...... .........................…................…. 21 6 吊车荷载…......... ••••.. ••••..••...•.•.......•......••..• .....……. 23 6.1 吊车竖向和水平荷载…..............…...............…....... 23 6.2 多台吊车的组合…..............…..;............................ 24 6.3 吊车荷载的动力系数......................................……. 24 6.4 吊车荷载的组合值、频遇值及准永久值..............…·…… 24 7 雪荷载…............................................................... 26 7.1 雪荷载标准值及基本雪压 …........…......................... 26 7.2 屋面积雪分布系数........….........…..................……. 26 8 风荷载......................................…......................... 30 8.1 风荷载标准值及基本风压 ........…............................ 30 9 www.weboos.com
8.2风压高度变化系数 31 8.3风荷载体型系数… 33 8.4顺风向风振和风振系数 57 8.5横风向和扭转风振 60 8.6阵风系数 62 9温度作用… 64 9.1一般规定 64 9.2基本气温 64 9.3均匀温度作用… 65 10偶然荷载 66 10.1一般规定… 66 10.2爆炸4…**… 66 67 附录A常用材料和构件的自重… 69 附录B消防车活荷载考虑覆土厚度影响的折减系数 …87 附录C楼面等效均布活荷载的确定方法… 89 附录D工业建筑楼面活荷载… 94 附录E基本雪压、风压和温度的确定方法… 99 附录F结构基本自振周期的经验公式… 152 附录G结构振型系数的近似值… 155 附录H横风向及扭转风振的等效风荷载… 157 附录J高层建筑顺风向和横风向风振加速度计算 165 本规范用词说明… 168 引用标准名录… 169 附：条文说明…… 171 10
8.2 风压高度变化系数................................................ 31 8.3 风荷载体型系数...................................…….......... 33 8.4 顺风向风振和风振系数...................... .…................ 57 8.5 横风向和扭转风振... •••••• ........….......................….. 60 8.6 阵风系数 •..••••••••••••••••••••••••••••••••••••••.••••••••••••••• 62 9 温度作用…...............….......................................... 64 9.1 一般规定 •••••• •••••• •••••• ........…............................ 64 9.2 基本气温 •••••• •••••• ••••••••• •••.••••••••• •••••• ••••••••• .....…. 64 9.3 均匀温度作用........…........................................... 65 10 偶然荷载................…..…...... ..…........….............. 66 10.1 一般规定... ••• ••• ........…….................................. 66 10.2 爆炸............ ............ ........…·…... .....…........….. 66 10.3 撞击..............….........……............................... 67 附录 常用材料和构件的自重... .............…................. 69 附录 消防车活荷载考虑覆土厚度影响的折减系数......... 87 附录 楼面等效均布活荷载的确定方法........….........…. 89 附录 工业建筑楼面活荷载……........…........….......…. 94 附录 基本雪压、风压和温度的确定方法..................... 99 附录 结构基本自振周期的经验公式........................... 152 附录 结构振型系数的近似值........….... .....…........….. 155 附录 横风向及扭转风振的等效风荷载…........……....... 157 附录 高层建筑顺风向和横风向风振加速度计算........…. 165 本规范用词说明.....................................................…. 168 引用标准名录......................….......….........….........…. 169 附:条文说明…...................................…................… 171 10 www.weboos.com
Contents 1 General Provisions.......................1 2 Terms and Symbols.................... …2 2.1TemS**t**4*…2 2.2 Symmbols......5 3 Classification and Combination of Loads..................8 3.1 Classification of Loads and Representative Values of Loads...8 3.2 Combination of Loads.......................................9 4 Permanent L0ad*…13 5 Live Load on Floors and Roofs................................14 5.1 Uniformly Distributed Live Loads on Floors in Civil Buildings*…14 5.2 Live Loads on Floors in Industrial Buildings..17 5.3 Live L0ads0 n Roofs…t**…18 5.4 Ash Load on Roofs...............................19 5.5 Construction and Maintenance Loads,Horizontal and Vertical Loads on Railings.......... …21 5.6Dynamic Coefficient..............................21 6 Crane L0ad…23 6.1 Vertical and Horizontal Crane Loads.........................23 6.2 Combination of Multi-Cranes..............................24 6.3 Dynamic Coefficients of Crane Loads.........................24 6.4 Combination Value,Frequent Value and Quasi-Permanent Value of Crane Load…24 7Sn0wL0ad…26 7.1 Characteristic Value of Snow Load and Reference Snow 11
Contents 1 General Provisions ........….......….............................. 1 2 Terms and Symbols …............................................. 2 2.1 Terms .......................…..............…………........… 2 2.2 nbols ….....……………...............………........….. 5 3 Classification and Combination of Loads ……...............8 3.1 Classification of Loads and Representative Values of Loads …… 8 3. 2 Combination of Loads ……….....…………………………. 9 4 Permanent Load ........…. •••••..••..• .........…............... 13 5 Live Load on Floors and Roofs …….......................…. 14 5. 1 Uniformly Distributed Live Loads on Floors in Civil Buildings …………………………….................……. 14 5.2 Live 1ρads on Floors in lndustrial Buildings ………......…… 17 5. 3 Live Loads on Roofs …………….................….......... 18 5. 4 Ash Load on Roofs .................………........……........ 19 5. 5 Construction and Maintenance 1ρads ， Horiwntal and Vertical Loads on Railings …...............…... ..….......... 21 5.6 Dynamic Coefficient ……........…………......…………. 21 6 Crane Load ................…...................................... 23 6. 1 Vertical and Horiwntal Crane Loads ………..............…. 23 6. 2 Combination of Multi-Cranes ........…........…………..… 24 6.3 rnamic Coefficients of Crane Loads …........................ 24 6.4 Combination Value, Frequent Value and Quasi-Permanent Value of Crane Load ...........…............................... 24 7 Snow Load .........................….. ••..•••••••• ...........…. 26 7.1 Characteristic Value of Snow 1ρad and Reference Snow 11 www.weboos.com
Pressure…26 7.2 Distribution Factor for Roof Snow Load..................26 8 Wind L0ad…30 8.1 Characteristic Value of Wind Load and Reference Wind Pressure…30 8.2 Exposure Factor for Wind Pressure............................ 31 8.3 Shape Factor of Wind Load.................33 8.4 Along-Wind Vibration and Dynamic Response Factor …57 8.5 Across-Wind and Wind-Induced Torsional Vibration............ 60 8.6 Gust Factor... 62 9 Thermal Action................ 64 9.1 General…64 9.2 Reference Air Temperature................................ 64 9.3 Uniform Temperature Action 65 l0 Accidental Load… 66 10.1 General............. 66 10.2 Explosion… 66 10.3 npact4t…* 67 Appendix A Self-Weight of Commonly Used Materials and Structural Members........................69 Appendix B Reduction Factor of Fire Engine Load Accounting for the Influence of Covered S0il…87 Appendix C Determination Method of Equivalent Uniformly Distributed Live Loads on Fl00rs…89 Appendix D Live Loads on Floors of Industrial Buildings…94 Appendix E Determination Method of the Reference Snow Pressure,Wind Pressure and 12
Pressure ......................….. •••.•• •••••..•• •••••. ••••• ...…. 26 7.2 Distribution Factor for Roof Snow Load •••••••••••••.•.•••••••• 26 8 Wind Load ........…·…... ...... .•.... .............….............. 30 8.1 Characteristic Value of Wind Load and Reference Wind Pressure …………….....……………......………......…. 30 8. 2 Exposure Factor for Wind Pressure ….....………............. 31 8. 3 Shape Factor of Wind Load …….....…….... .....….......... 33 8.4 Along-Wind Vibration and Dynamic Response Factor ••••••••• 57 8.5 Across-Wind and Wind-Induced Torsional Vibration …......... 60 8. 6 Gust Factor ................…..... ..….........….........…. 62 9 Thermal Action .......…......... .….........…................ 64 9.1 General …………………………………..................... 64 9.2 Reference Air Temperature ……….....…........…........... 64 9. 3 Uniform Temperature Action ……………………………… 65 10 Accidental Lοad …................................................ 66 10. 1 General …….....………………………..............….. 66 10. 2 Explosion ………………………………………………… 66 10.3 Impact …........……………………............…………. 67 Appendix A Self-Weight of Commonly Used Materials and Structural Members ..............….......... 69 Appendix B Reduction Factor of Fire Engine Load Accounting for the Influence of Covered Soil ….............................……................ 87 Appendix C Determination Method of Equivalent Uniformly Distributed Live Loads on Floors ........….........….........……........….. 89 Appendix D Live Loads on Floors of Industrial Buildings ••••••••••••....••••••••••••••.••••.•••••••••••. 94 Appendix E Determination Method of the Reference Snow Pressure, Wind Pressure and 12 www.weboos.com