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hi HOW I GET S1 IF MY place is not in USA AS PER IBC 2003 we will founnd that Step 1: Determine the mapped maximum considered earthquake spectral response acceleration at short periods, SS, and at 1-second period, S1, for the site location from Code Figures 1615(1) through 1615(10). but...

we have building with dimension 300 meter x100 meter the building has basement for whole area and 4 floor above basement on 50% of that area , remain part has 1 floor only above basement I want to ask if we need settlement joint between the part with 4 floor and the remain part or not...

hi everybody we have basement for building has 3 floors. the area of basement is 300 meters by 200 meters. foundation should be raft the ground water table is under natural ground level by 1.5 meter. we suggest to make construction joint every 100 meter in two direction is that enough...

hi we have building with height 80 meter we made 20 modes. after we run anlysis we have period for each mode. for example for mode 2 persiod 3 second. what is the refrence for checking the allowable for that period if it accepted or not? we use ACI and ibc thanks

hi i have isolated footing with depth 1.2 meter casted already in the site but we need to add new column is very near to the edge of it has heavy load we need to change this footing to be combind footing to be suitable with the new sutiation. the steps of repair as below: 1- rough the...

Hello i do my best to display the reaction per floor in etabs programm put i can not only reaction i can display at base level only anyone have idea about that question best regards

hello i want to ask about the allowable high rise building drift if (steel or concrete building) all of us know the allowable story drift shown in table 12.12-1 (ASCE7-05),but i ask about the drift for the whole building for example building with height 150 meter what is the allowable...

hi everybody my friend send me that pic and said to me what can i do if you check the pic you will find 2 column is not verticaly i will not take decision until i see all comments best regards

Hi everybody: I have planted column at the edge of cantilever beam the length of that cantilever is 0.5 meter. The dimension of beam is 0.8 m width 0.33 height (hidden beam) but the column load is small. I check the RFT of beam and stirrups, and I check the deflection all is ok as per aci...

hello we have raft foundation it is has stress 25 kg/cm2 for 30% of the whole area the allowable stress under the raft as per soil report is 25kg/cm2 i need to increase the area of the raft but the structural engineer for the contractor refuse and he ask to take average stress under the raft...

hellO we study new project for value engineer we face isolated footing with top bars 6 bars per meter diamter 12 in two direction the height of buidling is 40 meter i see the top bars in not requeried as per ACI but the deigner for the project said that it is seismic requeried i doubt in...

hi we have raft foundation and contractor refuse to make double layer of waterproofing under the raft he side the high level of ground water table under the raft by 45 cm and he that that is enough but i insist in to make two layer he ask me about the reason but i can not answer anyone can...

hi everybody how can i assign effect of soil load on retaining wall in etabs prgramm?

hi i have area bout 24000 square meter i want to ask about the average number of bore hole to perpare soil report the porpose of area mall 3 floor without basement thanks for any comments

HI i made high rise buidling in etab programm with high 100 meter but i found this massage in the analysis file CURRENT P-DELTA ANALYSIS ITERATION = 1 MAXIMUM NUMBER OF ITERATIONS ALLOWED = 2 CURRENT DISPLACEMENT MAGNITUDE = 0.044349...

why are the shear walls all times unsafe when we make deign by etabs programm? etabs programm requiered big width of shear wall? is that right to use Etabs programm in deign shear wall or use anther programm like section builder useing the result of etabs? thanks for all comments

when can take the effect of the dynamic load and the effect of the p- delta into consideration? i hear that when the height of building more than 100 meter is that right?? thanks

hi everybody i used ubc 79 and ACI 318-99 I HAVE DHEAR WALL IN MULTISTORY BUILDING UNSAFE FOR THE SHEAR RATIo the arch enginneer refuse to incease the width of wall i hear we can add stuirrps in the shear wall to be safe in shear but i do not know what is the equation to calculate that and...

hi everybody i used ubc 79 and ACI 318-99 I HAVE DHEAR WALL IN MULTISTORY BUILDING UNSAFE FOR THE SHEAR RATIo the arch enginneer refuse to incease the width of wall i hear we can add stuirrps in the shear wall to be safe in shear but i do not know what is the equation to calculate that and...

hello everybody i use UBC 97 AND ACI 318-99 metric unit MY QUESTION IS WHAT IS THE RIGHT WAY TO CALCUALTE THE SCLE FACTOR IN RESPONSE SPECTRA IN ETAB PROGRAMM? my fined advice me to make that at the first floor divide the base shear of EQX/BASE SHEAR OR SPEXCX TO GET THE SECALE FACTOR after...