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User defined floor Height

Ambrish
General format: FLOOR HEIGHT h1; h2; h3;……………;hi - hi+1;…………..;hn How to use the above command. Can any one help me with an example. Thanking you in advance Ambrish

  • Hi Ambrish,

    As to what specific application are you applying your query. Is it on the Floor load? Better specify clearly.

     

    Thanks,

    William

  • Offline in reply to Jia Yang Liew

    Ambarish, 

    Staad automatically identifies the floor level by simply identifying the two coplanar beams orthogonally meeting at a column joint.

    Also, manually this level can be defined by specifying the floor height.

    In the model shown below , there are two floor levels at 3m and 6m.

    So I have defined the floor height specification as

    *************************

    FLOOR HEIGHT
    3.0; 6.0
    DEFINE 1893 LOAD 

    ****************************

    Please find below the input command of the complete model .

    ********************************************************************************

    STAAD SPACE
    START JOB INFORMATION
    ENGINEER DATE 10-Apr-07
    END JOB INFORMATION
    INPUT WIDTH 79
    UNIT METER KN
    JOINT COORDINATES
    101 7 0 0; 102 7 0 3.1; 103 7 0 6.2; 104 7 0 9.3; 105 7 1.5 0; 106 7 1.5 3.1;
    107 7 1.5 6.2; 108 7 1.5 9.3; 109 7 3 0; 110 7 3 3.1; 111 7 3 6.2; 112 7 3 9.3;
    113 7 4.5 0; 114 7 4.5 3.1; 115 7 4.5 6.2; 116 7 4.5 9.3; 117 7 6 0;
    118 7 6 3.1; 119 7 6 6.2; 120 7 6 9.3; 121 10 0 0; 122 10 0 3.1; 123 10 0 6.2;
    124 10 0 9.3; 125 10 1.5 0; 126 10 1.5 3.1; 127 10 1.5 6.2; 128 10 1.5 9.3;
    129 10 3 0; 130 10 3 3.1; 131 10 3 6.2; 132 10 3 9.3; 133 10 4.5 0;
    134 10 4.5 3.1; 135 10 4.5 6.2; 136 10 4.5 9.3; 137 10 6 0; 138 10 6 3.1;
    139 10 6 6.2; 140 10 6 9.3;
    MEMBER INCIDENCES
    201 101 105; 202 102 106; 203 103 107; 204 104 108; 205 105 109; 206 106 110;
    207 107 111; 208 108 112; 209 109 113; 210 110 114; 211 111 115; 212 112 116;
    213 113 117; 214 114 118; 215 115 119; 216 116 120; 217 121 125; 218 122 126;
    219 123 127; 220 124 128; 221 125 129; 222 126 130; 223 127 131; 224 128 132;
    225 129 133; 226 130 134; 227 131 135; 228 132 136; 229 133 137; 230 134 138;
    231 135 139; 232 136 140; 301 109 110; 302 110 111; 303 111 112; 304 117 118;
    305 118 119; 306 119 120; 307 129 130; 308 130 131; 309 131 132; 310 137 138;
    311 138 139; 312 139 140; 401 109 129; 402 110 130; 403 111 131; 404 112 132;
    405 117 137; 406 118 138; 407 119 139; 408 120 140;
    DEFINE MATERIAL START
    ISOTROPIC CONCRETE
    E 2.17185e+007
    POISSON 0.17
    DENSITY 23.5616
    ALPHA 1e-005
    DAMP 0.05
    END DEFINE MATERIAL
    MEMBER PROPERTY AMERICAN
    201 TO 232 PRIS YD 0.5 ZD 0.5
    301 TO 312 401 TO 408 PRIS YD 0.4 ZD 0.3
    CONSTANTS
    MATERIAL CONCRETE ALL
    SUPPORTS
    101 TO 104 121 TO 124 FIXED
    FLOOR HEIGHT
    3.0; 6.0
    DEFINE 1893 LOAD
    ZONE 0.36 RF 3 I 1.5 SS 1 ST 1 DM 0.05 DT 0
    SELFWEIGHT
    MEMBER WEIGHT
    301 TO 312 401 TO 408 UNI 15
    *FLOOR WEIGHT
    *YRANGE 2.5 3.5 FLOAD 5
    *YRANGE 5.5 6.5 FLOAD 5
    LOAD 1 LOADTYPE Seismic TITLE PS_(+X)
    1893 LOAD X
    PERFORM ANALYSIS
    CHANGE
    LOAD 2 LOADTYPE Seismic TITLE PS_(+Z)
    1893 LOAD Z
    LOAD 3 LOADTYPE Dead TITLE DL
    SELFWEIGHT Y -1
    MEMBER LOAD
    301 TO 312 401 TO 408 UNI GY -15
    FLOOR LOAD
    YRANGE 2.5 3.5 FLOAD -5 GY
    YRANGE 5.5 6.5 FLOAD -5 GY
    LOAD 7 LOADTYPE Seismic TITLE RS_X
    SELFWEIGHT X 1
    SELFWEIGHT Y 1
    SELFWEIGHT Z 1
    MEMBER LOAD
    301 TO 312 401 TO 408 UNI GX 15
    301 TO 312 401 TO 408 UNI GY 15
    301 TO 312 401 TO 408 UNI GZ 15
    FLOOR LOAD
    YRANGE 2.5 3.5 FLOAD 5 GX
    YRANGE 2.5 3.5 FLOAD 5 GY
    YRANGE 2.5 3.5 FLOAD 5 GZ
    YRANGE 5.5 6.5 FLOAD 5 GX
    YRANGE 5.5 6.5 FLOAD 5 GY
    YRANGE 5.5 6.5 FLOAD 5 GZ
    SPECTRUM CQC 1893 TOR X 0.09 ACC SCALE 1 DAMP 0.05 MIS
    SOIL TYPE 1
    LOAD 8 LOADTYPE Seismic TITLE RS_Z
    SPECTRUM CQC 1893 TOR Z 0.09 ACC SCALE 1 DAMP 0.05 MIS
    SOIL TYPE 1
    LOAD COMBINATION 9
    1 1.2 3 1.2
    LOAD COMBINATION 10
    2 1.2 3 1.2
    LOAD COMBINATION 11
    3 1.2 7 1.2
    LOAD COMBINATION 12
    3 1.2 8 1.2
    PERFORM ANALYSIS PRINT STATICS CHECK
    FINISH

    ****************************************************************

    Regards,

    Biswa



  • in reply to Biswatosh
    Mr. Biswatosh, Thank you very much for your reply. FLOOR HEIGHT 0; 2.7; 6.0; 9.3; 12.6; 15.9; 19.2; 20.2; 22.3 The above are my floor heights. But between floor height 0 and 2.7m, a part of the structure also exist. therefore tie beams exists between 0 to 2.7m, but, there is no regular floor as such. so, when i define like above, i get the error as *=> Error, above line ignored!, check possible syntax or typing error. is there any syntax or typing error in my input? can you please help me.
  • in reply to Jia Yang Liew
    Mr. William, Thank you very much FLOOR HEIGHT 0; 2.7; 6.0; 9.3; 12.6; 15.9; 19.2; 20.2; 22.3 The above are my floor heights. But between floor height 0 and 2.7m, a part of the structure also exist. therefore tie beams exists between 0 to 2.7m, but, there is no regular floor as such. so, when i define like above, i get the error as *=> Error, above line ignored!, check possible syntax or typing error. is there any syntax or typing error in my input? can you please help me.
  • in reply to Ambrish

    Hi Ambrish,

    Honestly, I've been using staad for quite sometime but havn't used the floor height command. Like what the other reply said ( thanks to you sir ) that staad automatically determines the floor height based on the intersections of beams & columns & let me add based on the yrange you specify as in the case of floor load. For me I don't need specifying the floor height. I attached also below the model replied ( by you sir, anyway thanks also ). take note the remarks with asterisks (*) 

    STAAD SPACE
    START JOB INFORMATION
    ENGINEER DATE 10-Apr-07
    END JOB INFORMATION
    INPUT WIDTH 79
    UNIT METER KN
    JOINT COORDINATES
    101 7 0 0; 102 7 0 3.1; 103 7 0 6.2; 104 7 0 9.3; 105 7 1.5 0; 106 7 1.5 3.1;
    107 7 1.5 6.2; 108 7 1.5 9.3; 109 7 3 0; 110 7 3 3.1; 111 7 3 6.2; 112 7 3 9.3;
    113 7 4.5 0; 114 7 4.5 3.1; 115 7 4.5 6.2; 116 7 4.5 9.3; 117 7 6 0;
    118 7 6 3.1; 119 7 6 6.2; 120 7 6 9.3; 121 10 0 0; 122 10 0 3.1; 123 10 0 6.2;
    124 10 0 9.3; 125 10 1.5 0; 126 10 1.5 3.1; 127 10 1.5 6.2; 128 10 1.5 9.3;
    129 10 3 0; 130 10 3 3.1; 131 10 3 6.2; 132 10 3 9.3; 133 10 4.5 0;
    134 10 4.5 3.1; 135 10 4.5 6.2; 136 10 4.5 9.3; 137 10 6 0; 138 10 6 3.1;
    139 10 6 6.2; 140 10 6 9.3;
    MEMBER INCIDENCES
    201 101 105; 202 102 106; 203 103 107; 204 104 108; 205 105 109; 206 106 110;
    207 107 111; 208 108 112; 209 109 113; 210 110 114; 211 111 115; 212 112 116;
    213 113 117; 214 114 118; 215 115 119; 216 116 120; 217 121 125; 218 122 126;
    219 123 127; 220 124 128; 221 125 129; 222 126 130; 223 127 131; 224 128 132;
    225 129 133; 226 130 134; 227 131 135; 228 132 136; 229 133 137; 230 134 138;
    231 135 139; 232 136 140; 301 109 110; 302 110 111; 303 111 112; 304 117 118;
    305 118 119; 306 119 120; 307 129 130; 308 130 131; 309 131 132; 310 137 138;
    311 138 139; 312 139 140; 401 109 129; 402 110 130; 403 111 131; 404 112 132;
    405 117 137; 406 118 138; 407 119 139; 408 120 140;
    DEFINE MATERIAL START
    ISOTROPIC CONCRETE
    E 2.17185e+007
    POISSON 0.17
    DENSITY 23.5616
    ALPHA 1e-005
    DAMP 0.05
    END DEFINE MATERIAL
    MEMBER PROPERTY AMERICAN
    201 TO 232 PRIS YD 0.5 ZD 0.5
    301 TO 312 401 TO 408 PRIS YD 0.4 ZD 0.3
    CONSTANTS
    MATERIAL CONCRETE ALL
    SUPPORTS
    101 TO 104 121 TO 124 FIXED
    * no need to specify the floor height because at dead load case 3
    * staad directly undertands your floor height based on yrange 2.5 3.5,
    * yrange 5.5 6.5, it's 3m & 6m
    *FLOOR HEIGHT
    *3.0; 6.0
    DEFINE 1893 LOAD
    ZONE 0.36 RF 3 I 1.5 SS 1 ST 1 DM 0.05 DT 0
    SELFWEIGHT
    MEMBER WEIGHT
    301 TO 312 401 TO 408 UNI 15
    FLOOR WEIGHT
    YRANGE 2.5 3.5 FLOAD 5
    YRANGE 5.5 6.5 FLOAD 5
    LOAD 1 LOADTYPE Seismic  TITLE PS_(+X)
    1893 LOAD X
    PERFORM ANALYSIS
    CHANGE
    LOAD 2 LOADTYPE Seismic  TITLE PS_(+Z)
    1893 LOAD Z
    * you need to add the perform analysis & change command
    PERFORM ANALYSIS
    CHANGE
    LOAD 3 LOADTYPE Dead  TITLE DL
    SELFWEIGHT Y -1
    MEMBER LOAD
    301 TO 312 401 TO 408 UNI GY -15
    FLOOR LOAD
    YRANGE 2.5 3.5 FLOAD -5 GY
    YRANGE 5.5 6.5 FLOAD -5 GY
    LOAD 7 LOADTYPE Seismic  TITLE RS_X
    SELFWEIGHT X 1
    SELFWEIGHT Y 1
    SELFWEIGHT Z 1
    MEMBER LOAD
    301 TO 312 401 TO 408 UNI GX 15
    301 TO 312 401 TO 408 UNI GY 15
    301 TO 312 401 TO 408 UNI GZ 15
    FLOOR LOAD
    YRANGE 2.5 3.5 FLOAD 5 GX
    YRANGE 2.5 3.5 FLOAD 5 GY
    YRANGE 2.5 3.5 FLOAD 5 GZ
    YRANGE 5.5 6.5 FLOAD 5 GX
    YRANGE 5.5 6.5 FLOAD 5 GY
    YRANGE 5.5 6.5 FLOAD 5 GZ
    SPECTRUM CQC 1893 TOR X 0.09 ACC SCALE 1 DAMP 0.05 MIS
    SOIL TYPE 1
    LOAD 8 LOADTYPE Seismic  TITLE RS_Z
    SPECTRUM CQC 1893 TOR Z 0.09 ACC SCALE 1 DAMP 0.05 MIS
    SOIL TYPE 1
    LOAD COMBINATION 9
    1 1.2 3 1.2
    LOAD COMBINATION 10
    2 1.2 3 1.2
    LOAD COMBINATION 11
    3 1.2 7 1.2
    LOAD COMBINATION 12
    3 1.2 8 1.2
    PERFORM ANALYSIS PRINT STATICS CHECK
    FINISH
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